diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c
index 3ee41f3907..8fa214f1b4 100644
--- a/libavcodec/4xm.c
+++ b/libavcodec/4xm.c
@@ -784,7 +784,7 @@ static int decode_i_frame(FourXContext *f, const uint8_t *buf, int length)
 }
 
 static int decode_frame(AVCodecContext *avctx, void *data,
-                        int *data_size, AVPacket *avpkt)
+                        int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf    = avpkt->data;
     int buf_size          = avpkt->size;
@@ -919,7 +919,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
     p->key_frame = p->pict_type == AV_PICTURE_TYPE_I;
 
     *picture   = *p;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     emms_c();
 
diff --git a/libavcodec/8bps.c b/libavcodec/8bps.c
index d450569bc6..6d56fa67db 100644
--- a/libavcodec/8bps.c
+++ b/libavcodec/8bps.c
@@ -64,7 +64,7 @@ typedef struct EightBpsContext {
  *
  */
 static int decode_frame(AVCodecContext *avctx, void *data,
-                        int *data_size, AVPacket *avpkt)
+                        int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size       = avpkt->size;
@@ -144,7 +144,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
         memcpy (c->pic.data[1], c->pal, AVPALETTE_SIZE);
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = c->pic;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/aasc.c b/libavcodec/aasc.c
index 6c9fd4e428..01ec062804 100644
--- a/libavcodec/aasc.c
+++ b/libavcodec/aasc.c
@@ -75,7 +75,7 @@ static av_cold int aasc_decode_init(AVCodecContext *avctx)
 }
 
 static int aasc_decode_frame(AVCodecContext *avctx,
-                              void *data, int *data_size,
+                              void *data, int *got_frame,
                               AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -135,7 +135,7 @@ static int aasc_decode_frame(AVCodecContext *avctx,
     if (avctx->pix_fmt == AV_PIX_FMT_PAL8)
         memcpy(s->frame.data[1], s->palette, s->palette_size);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
 
     /* report that the buffer was completely consumed */
diff --git a/libavcodec/anm.c b/libavcodec/anm.c
index 7cac095255..c27ab1de1c 100644
--- a/libavcodec/anm.c
+++ b/libavcodec/anm.c
@@ -106,7 +106,7 @@ exhausted:
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     AnmContext *s = avctx->priv_data;
@@ -171,7 +171,7 @@ static int decode_frame(AVCodecContext *avctx,
 
     memcpy(s->frame.data[1], s->palette, AVPALETTE_SIZE);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
     return buf_size;
 }
diff --git a/libavcodec/ansi.c b/libavcodec/ansi.c
index 961c57b5f2..8b2ef11921 100644
--- a/libavcodec/ansi.c
+++ b/libavcodec/ansi.c
@@ -339,7 +339,7 @@ static int execute_code(AVCodecContext * avctx, int c)
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     AnsiContext *s = avctx->priv_data;
@@ -442,7 +442,7 @@ static int decode_frame(AVCodecContext *avctx,
         buf++;
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
     return buf_size;
 }
diff --git a/libavcodec/asvdec.c b/libavcodec/asvdec.c
index 127d37a670..8282511239 100644
--- a/libavcodec/asvdec.c
+++ b/libavcodec/asvdec.c
@@ -178,7 +178,7 @@ static inline void idct_put(ASV1Context *a, int mb_x, int mb_y){
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -244,7 +244,7 @@ static int decode_frame(AVCodecContext *avctx,
     }
 
     *picture   = a->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     emms_c();
 
diff --git a/libavcodec/aura.c b/libavcodec/aura.c
index 39d5235190..e510a9f64c 100644
--- a/libavcodec/aura.c
+++ b/libavcodec/aura.c
@@ -47,7 +47,7 @@ static av_cold int aura_decode_init(AVCodecContext *avctx)
 }
 
 static int aura_decode_frame(AVCodecContext *avctx,
-                             void *data, int *data_size,
+                             void *data, int *got_frame,
                              AVPacket *pkt)
 {
     AuraDecodeContext *s=avctx->priv_data;
@@ -109,7 +109,7 @@ static int aura_decode_frame(AVCodecContext *avctx,
         V += s->frame.linesize[2] - (avctx->width >> 1);
     }
 
-    *data_size=sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data= s->frame;
 
     return pkt->size;
diff --git a/libavcodec/avs.c b/libavcodec/avs.c
index 4b05bf9400..0881d7417e 100644
--- a/libavcodec/avs.c
+++ b/libavcodec/avs.c
@@ -44,7 +44,7 @@ typedef enum {
 
 static int
 avs_decode_frame(AVCodecContext * avctx,
-                 void *data, int *data_size, AVPacket *avpkt)
+                 void *data, int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     const uint8_t *buf_end = avpkt->data + avpkt->size;
@@ -152,7 +152,7 @@ avs_decode_frame(AVCodecContext * avctx,
     }
 
     *picture   = avs->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     return buf_size;
 }
diff --git a/libavcodec/bethsoftvideo.c b/libavcodec/bethsoftvideo.c
index 8eec5b7253..04243ed33a 100644
--- a/libavcodec/bethsoftvideo.c
+++ b/libavcodec/bethsoftvideo.c
@@ -65,7 +65,7 @@ static int set_palette(BethsoftvidContext *ctx)
 }
 
 static int bethsoftvid_decode_frame(AVCodecContext *avctx,
-                              void *data, int *data_size,
+                              void *data, int *got_frame,
                               AVPacket *avpkt)
 {
     BethsoftvidContext * vid = avctx->priv_data;
@@ -97,7 +97,7 @@ static int bethsoftvid_decode_frame(AVCodecContext *avctx,
 
     switch(block_type = bytestream2_get_byte(&vid->g)){
         case PALETTE_BLOCK: {
-            *data_size = 0;
+            *got_frame = 0;
             if ((ret = set_palette(vid)) < 0) {
                 av_log(avctx, AV_LOG_ERROR, "error reading palette\n");
                 return ret;
@@ -138,7 +138,7 @@ static int bethsoftvid_decode_frame(AVCodecContext *avctx,
     }
     end:
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = vid->frame;
 
     return avpkt->size;
diff --git a/libavcodec/bfi.c b/libavcodec/bfi.c
index 33f9e41952..70291b563b 100644
--- a/libavcodec/bfi.c
+++ b/libavcodec/bfi.c
@@ -48,7 +48,7 @@ static av_cold int bfi_decode_init(AVCodecContext *avctx)
 }
 
 static int bfi_decode_frame(AVCodecContext *avctx, void *data,
-                            int *data_size, AVPacket *avpkt)
+                            int *got_frame, AVPacket *avpkt)
 {
     GetByteContext g;
     int buf_size    = avpkt->size;
@@ -169,7 +169,7 @@ static int bfi_decode_frame(AVCodecContext *avctx, void *data,
         src += avctx->width;
         dst += bfi->frame.linesize[0];
     }
-    *data_size       = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame *)data = bfi->frame;
     return buf_size;
 }
diff --git a/libavcodec/bink.c b/libavcodec/bink.c
index 6250e267ca..3e2bb71d85 100644
--- a/libavcodec/bink.c
+++ b/libavcodec/bink.c
@@ -1170,7 +1170,7 @@ static int bink_decode_plane(BinkContext *c, GetBitContext *gb, int plane_idx,
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *pkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
 {
     BinkContext * const c = avctx->priv_data;
     GetBitContext gb;
@@ -1217,7 +1217,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
     }
     emms_c();
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = c->pic;
 
     if (c->version > 'b')
diff --git a/libavcodec/bmp.c b/libavcodec/bmp.c
index 3dec91d7cd..406af65ed2 100644
--- a/libavcodec/bmp.c
+++ b/libavcodec/bmp.c
@@ -35,7 +35,7 @@ static av_cold int bmp_decode_init(AVCodecContext *avctx){
 }
 
 static int bmp_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -334,7 +334,7 @@ static int bmp_decode_frame(AVCodecContext *avctx,
     }
 
     *picture = s->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     return buf_size;
 }
diff --git a/libavcodec/bmv.c b/libavcodec/bmv.c
index da9b8aaba6..defa1ab88b 100644
--- a/libavcodec/bmv.c
+++ b/libavcodec/bmv.c
@@ -196,7 +196,8 @@ static int decode_bmv_frame(const uint8_t *source, int src_len, uint8_t *frame,
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *pkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
+                        AVPacket *pkt)
 {
     BMVDecContext * const c = avctx->priv_data;
     int type, scr_off;
@@ -267,7 +268,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
         outptr += c->pic.linesize[0];
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = c->pic;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/c93.c b/libavcodec/c93.c
index b53ee1b7d6..4ccd767819 100644
--- a/libavcodec/c93.c
+++ b/libavcodec/c93.c
@@ -117,7 +117,7 @@ static inline void draw_n_color(uint8_t *out, int stride, int width,
 }
 
 static int decode_frame(AVCodecContext *avctx, void *data,
-                            int *data_size, AVPacket *avpkt)
+                        int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -243,7 +243,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
     }
 
     *picture = *newpic;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     return buf_size;
 }
diff --git a/libavcodec/cavsdec.c b/libavcodec/cavsdec.c
index a8a4d6b649..34eeabdae2 100644
--- a/libavcodec/cavsdec.c
+++ b/libavcodec/cavsdec.c
@@ -1112,7 +1112,7 @@ static void cavs_flush(AVCodecContext * avctx) {
     h->got_keyframe = 0;
 }
 
-static int cavs_decode_frame(AVCodecContext * avctx,void *data, int *data_size,
+static int cavs_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                              AVPacket *avpkt) {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -1128,7 +1128,7 @@ static int cavs_decode_frame(AVCodecContext * avctx,void *data, int *data_size,
 
     if (buf_size == 0) {
         if (!s->low_delay && h->DPB[0].f.data[0]) {
-            *data_size = sizeof(AVPicture);
+            *got_frame = 1;
             *picture = h->DPB[0].f;
             memset(&h->DPB[0], 0, sizeof(h->DPB[0]));
         }
@@ -1156,7 +1156,7 @@ static int cavs_decode_frame(AVCodecContext * avctx,void *data, int *data_size,
                 h->got_keyframe = 1;
             }
         case PIC_PB_START_CODE:
-            *data_size = 0;
+            *got_frame = 0;
             if(!h->got_keyframe)
                 break;
             if(!h->top_qp)
@@ -1165,12 +1165,12 @@ static int cavs_decode_frame(AVCodecContext * avctx,void *data, int *data_size,
             h->stc = stc;
             if(decode_pic(h))
                 break;
-            *data_size = sizeof(AVPicture);
+            *got_frame = 1;
             if(h->pic_type != AV_PICTURE_TYPE_B) {
                 if(h->DPB[1].f.data[0]) {
                     *picture = h->DPB[1].f;
                 } else {
-                    *data_size = 0;
+                    *got_frame = 0;
                 }
             } else
                 *picture = h->picture.f;
diff --git a/libavcodec/cdgraphics.c b/libavcodec/cdgraphics.c
index d5ea6e765d..71d9da7ee2 100644
--- a/libavcodec/cdgraphics.c
+++ b/libavcodec/cdgraphics.c
@@ -267,7 +267,7 @@ static void cdg_scroll(CDGraphicsContext *cc, uint8_t *data,
 }
 
 static int cdg_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size, AVPacket *avpkt)
+                            void *data, int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size       = avpkt->size;
@@ -352,9 +352,9 @@ static int cdg_decode_frame(AVCodecContext *avctx,
             break;
         }
 
-        *data_size = sizeof(AVFrame);
+        *got_frame = 1;
     } else {
-        *data_size = 0;
+        *got_frame = 0;
         buf_size   = 0;
     }
 
diff --git a/libavcodec/cdxl.c b/libavcodec/cdxl.c
index 3a41805d99..3c2afd0232 100644
--- a/libavcodec/cdxl.c
+++ b/libavcodec/cdxl.c
@@ -210,7 +210,7 @@ static void cdxl_decode_ham8(CDXLVideoContext *c)
 }
 
 static int cdxl_decode_frame(AVCodecContext *avctx, void *data,
-                             int *data_size, AVPacket *pkt)
+                             int *got_frame, AVPacket *pkt)
 {
     CDXLVideoContext *c = avctx->priv_data;
     AVFrame * const p = &c->frame;
@@ -283,7 +283,7 @@ static int cdxl_decode_frame(AVCodecContext *avctx, void *data,
     } else {
         cdxl_decode_rgb(c);
     }
-    *data_size      = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = c->frame;
 
     return buf_size;
diff --git a/libavcodec/cinepak.c b/libavcodec/cinepak.c
index 9ae63b7432..9c6d290173 100644
--- a/libavcodec/cinepak.c
+++ b/libavcodec/cinepak.c
@@ -425,7 +425,7 @@ static av_cold int cinepak_decode_init(AVCodecContext *avctx)
 }
 
 static int cinepak_decode_frame(AVCodecContext *avctx,
-                                void *data, int *data_size,
+                                void *data, int *got_frame,
                                 AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -456,7 +456,7 @@ static int cinepak_decode_frame(AVCodecContext *avctx,
     if (s->palette_video)
         memcpy (s->frame.data[1], s->pal, AVPALETTE_SIZE);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
 
     /* report that the buffer was completely consumed */
diff --git a/libavcodec/cljr.c b/libavcodec/cljr.c
index e240026536..b93997f13d 100644
--- a/libavcodec/cljr.c
+++ b/libavcodec/cljr.c
@@ -48,7 +48,7 @@ static av_cold int common_init(AVCodecContext *avctx)
 
 #if CONFIG_CLJR_DECODER
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -99,7 +99,7 @@ static int decode_frame(AVCodecContext *avctx,
     }
 
     *picture   = a->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     return buf_size;
 }
diff --git a/libavcodec/cscd.c b/libavcodec/cscd.c
index 12dc1e3a09..e7ebb37f58 100644
--- a/libavcodec/cscd.c
+++ b/libavcodec/cscd.c
@@ -62,7 +62,7 @@ static void add_frame_default(AVFrame *f, const uint8_t *src,
     }
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt) {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -120,7 +120,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     }
 
     *picture = c->pic;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     return buf_size;
 }
 
diff --git a/libavcodec/cyuv.c b/libavcodec/cyuv.c
index 5d49e45f39..3bc6ba4981 100644
--- a/libavcodec/cyuv.c
+++ b/libavcodec/cyuv.c
@@ -60,7 +60,7 @@ static av_cold int cyuv_decode_init(AVCodecContext *avctx)
 }
 
 static int cyuv_decode_frame(AVCodecContext *avctx,
-                             void *data, int *data_size,
+                             void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -178,7 +178,7 @@ static int cyuv_decode_frame(AVCodecContext *avctx,
     }
     }
 
-    *data_size=sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data= s->frame;
 
     return buf_size;
diff --git a/libavcodec/dfa.c b/libavcodec/dfa.c
index 133d7639fb..b324c6e5ba 100644
--- a/libavcodec/dfa.c
+++ b/libavcodec/dfa.c
@@ -314,7 +314,7 @@ static const char* chunk_name[8] = {
 };
 
 static int dfa_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     DfaContext *s = avctx->priv_data;
@@ -369,7 +369,7 @@ static int dfa_decode_frame(AVCodecContext *avctx,
     }
     memcpy(s->pic.data[1], s->pal, sizeof(s->pal));
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->pic;
 
     return avpkt->size;
diff --git a/libavcodec/dnxhddec.c b/libavcodec/dnxhddec.c
index 50aa303a17..155505fcd9 100644
--- a/libavcodec/dnxhddec.c
+++ b/libavcodec/dnxhddec.c
@@ -358,7 +358,7 @@ static int dnxhd_decode_macroblocks(DNXHDContext *ctx, const uint8_t *buf, int b
     return 0;
 }
 
-static int dnxhd_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int dnxhd_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                               AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -404,7 +404,7 @@ static int dnxhd_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     }
 
     *picture = ctx->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
     return buf_size;
 }
 
diff --git a/libavcodec/dpx.c b/libavcodec/dpx.c
index c2b307670c..a9a8c16d6c 100644
--- a/libavcodec/dpx.c
+++ b/libavcodec/dpx.c
@@ -59,7 +59,7 @@ static uint16_t read10in32(const uint8_t **ptr, uint32_t * lbuf,
 
 static int decode_frame(AVCodecContext *avctx,
                         void *data,
-                        int *data_size,
+                        int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -263,7 +263,7 @@ static int decode_frame(AVCodecContext *avctx,
     }
 
     *picture   = s->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     return buf_size;
 }
diff --git a/libavcodec/dsicinav.c b/libavcodec/dsicinav.c
index dd475896eb..76d4d1fc4d 100644
--- a/libavcodec/dsicinav.c
+++ b/libavcodec/dsicinav.c
@@ -225,7 +225,7 @@ static int cin_decode_rle(const unsigned char *src, int src_size, unsigned char
 }
 
 static int cinvideo_decode_frame(AVCodecContext *avctx,
-                                 void *data, int *data_size,
+                                 void *data, int *got_frame,
                                  AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -321,7 +321,7 @@ static int cinvideo_decode_frame(AVCodecContext *avctx,
 
     FFSWAP(uint8_t *, cin->bitmap_table[CIN_CUR_BMP], cin->bitmap_table[CIN_PRE_BMP]);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame *)data = cin->frame;
 
     return buf_size;
diff --git a/libavcodec/dvdec.c b/libavcodec/dvdec.c
index ac820bd51f..fd00cc18d6 100644
--- a/libavcodec/dvdec.c
+++ b/libavcodec/dvdec.c
@@ -312,7 +312,7 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
 /* NOTE: exactly one frame must be given (120000 bytes for NTSC,
    144000 bytes for PAL - or twice those for 50Mbps) */
 static int dvvideo_decode_frame(AVCodecContext *avctx,
-                                 void *data, int *data_size,
+                                 void *data, int *got_frame,
                                  AVPacket *avpkt)
 {
     uint8_t *buf = avpkt->data;
@@ -360,7 +360,7 @@ static int dvvideo_decode_frame(AVCodecContext *avctx,
     emms_c();
 
     /* return image */
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->picture;
 
     return s->sys->frame_size;
diff --git a/libavcodec/dxa.c b/libavcodec/dxa.c
index d57398b8fb..ad9ad530f4 100644
--- a/libavcodec/dxa.c
+++ b/libavcodec/dxa.c
@@ -189,7 +189,7 @@ static int decode_13(AVCodecContext *avctx, DxaDecContext *c, uint8_t* dst, uint
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -286,7 +286,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
     if(c->pic.data[0])
         avctx->release_buffer(avctx, &c->pic);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = c->prev;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/dxtory.c b/libavcodec/dxtory.c
index 4ee364bab1..30983f8056 100644
--- a/libavcodec/dxtory.c
+++ b/libavcodec/dxtory.c
@@ -35,7 +35,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     int h, w;
@@ -83,7 +83,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         V  += pic->linesize[2];
     }
 
-    *data_size      = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = *pic;
 
     return avpkt->size;
diff --git a/libavcodec/eacmv.c b/libavcodec/eacmv.c
index c537e95be0..a129161386 100644
--- a/libavcodec/eacmv.c
+++ b/libavcodec/eacmv.c
@@ -152,7 +152,7 @@ static void cmv_process_header(CmvContext *s, const uint8_t *buf, const uint8_t
 #define MVIh_TAG MKTAG('M', 'V', 'I', 'h')
 
 static int cmv_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -202,7 +202,7 @@ static int cmv_decode_frame(AVCodecContext *avctx,
         cmv_decode_intra(s, buf+2, buf_end);
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
 
     return buf_size;
diff --git a/libavcodec/eamad.c b/libavcodec/eamad.c
index 25316172a1..7012c4ef12 100644
--- a/libavcodec/eamad.c
+++ b/libavcodec/eamad.c
@@ -227,7 +227,7 @@ static void calc_quant_matrix(MadContext *s, int qscale)
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -240,7 +240,7 @@ static int decode_frame(AVCodecContext *avctx,
 
     if (buf_size < 26) {
         av_log(avctx, AV_LOG_ERROR, "Input buffer too small\n");
-        *data_size = 0;
+        *got_frame = 0;
         return AVERROR_INVALIDDATA;
     }
 
@@ -288,7 +288,7 @@ static int decode_frame(AVCodecContext *avctx,
             if(decode_mb(s, inter) < 0)
                 return AVERROR_INVALIDDATA;
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
 
     if (chunk_type != MADe_TAG)
diff --git a/libavcodec/eatgq.c b/libavcodec/eatgq.c
index fa2ec0f903..c38b3cdf9c 100644
--- a/libavcodec/eatgq.c
+++ b/libavcodec/eatgq.c
@@ -189,7 +189,7 @@ static void tgq_calculate_qtable(TgqContext *s, int quant){
 }
 
 static int tgq_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt){
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -234,7 +234,7 @@ static int tgq_decode_frame(AVCodecContext *avctx,
             if (tgq_decode_mb(s, y, x) < 0)
                 return AVERROR_INVALIDDATA;
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
 
     return avpkt->size;
diff --git a/libavcodec/eatgv.c b/libavcodec/eatgv.c
index caee311cda..b105ea539c 100644
--- a/libavcodec/eatgv.c
+++ b/libavcodec/eatgv.c
@@ -253,7 +253,7 @@ static void cond_release_buffer(AVFrame *pic)
 }
 
 static int tgv_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -332,7 +332,7 @@ static int tgv_decode_frame(AVCodecContext *avctx,
         }
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
 
     return buf_size;
diff --git a/libavcodec/eatqi.c b/libavcodec/eatqi.c
index fcf652b70a..306331f359 100644
--- a/libavcodec/eatqi.c
+++ b/libavcodec/eatqi.c
@@ -97,7 +97,7 @@ static void tqi_calculate_qtable(MpegEncContext *s, int quant)
 }
 
 static int tqi_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -139,7 +139,7 @@ static int tqi_decode_frame(AVCodecContext *avctx,
     }
     end:
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = t->frame;
     return buf_size;
 }
diff --git a/libavcodec/escape124.c b/libavcodec/escape124.c
index 9198a3414b..1865c3829f 100644
--- a/libavcodec/escape124.c
+++ b/libavcodec/escape124.c
@@ -198,7 +198,7 @@ static const uint16_t mask_matrix[] = {0x1,   0x2,   0x10,   0x20,
                                        0x400, 0x800, 0x4000, 0x8000};
 
 static int escape124_decode_frame(AVCodecContext *avctx,
-                                  void *data, int *data_size,
+                                  void *data, int *got_frame,
                                   AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -234,7 +234,7 @@ static int escape124_decode_frame(AVCodecContext *avctx,
     if (!(frame_flags & 0x114) || !(frame_flags & 0x7800000)) {
         av_log(NULL, AV_LOG_DEBUG, "Skipping frame\n");
 
-        *data_size = sizeof(AVFrame);
+        *got_frame = 1;
         *(AVFrame*)data = s->frame;
 
         return frame_size;
@@ -360,7 +360,7 @@ static int escape124_decode_frame(AVCodecContext *avctx,
         avctx->release_buffer(avctx, &s->frame);
 
     *(AVFrame*)data = s->frame = new_frame;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     return frame_size;
 }
diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c
index 7c9bb9cf95..2d03085873 100644
--- a/libavcodec/ffv1dec.c
+++ b/libavcodec/ffv1dec.c
@@ -727,7 +727,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf  = avpkt->data;
     int buf_size        = avpkt->size;
@@ -843,7 +843,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
     f->picture_number++;
 
     *picture   = *p;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     FFSWAP(AVFrame, f->picture, f->last_picture);
 
diff --git a/libavcodec/flashsv.c b/libavcodec/flashsv.c
index 533e9f0f37..8448a8c285 100644
--- a/libavcodec/flashsv.c
+++ b/libavcodec/flashsv.c
@@ -236,7 +236,7 @@ static int calc_deflate_block_size(int tmpblock_size)
 }
 
 static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
-                                int *data_size, AVPacket *avpkt)
+                                int *got_frame, AVPacket *avpkt)
 {
     int buf_size       = avpkt->size;
     FlashSVContext *s  = avctx->priv_data;
@@ -443,7 +443,7 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
         memcpy(s->keyframe, s->frame.data[0], s->frame.linesize[0] * avctx->height);
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
 
     if ((get_bits_count(&gb) / 8) != buf_size)
diff --git a/libavcodec/flicvideo.c b/libavcodec/flicvideo.c
index 7bba2998b1..2a117d6da6 100644
--- a/libavcodec/flicvideo.c
+++ b/libavcodec/flicvideo.c
@@ -148,7 +148,7 @@ static av_cold int flic_decode_init(AVCodecContext *avctx)
 }
 
 static int flic_decode_frame_8BPP(AVCodecContext *avctx,
-                                  void *data, int *data_size,
+                                  void *data, int *got_frame,
                                   const uint8_t *buf, int buf_size)
 {
     FlicDecodeContext *s = avctx->priv_data;
@@ -461,14 +461,14 @@ static int flic_decode_frame_8BPP(AVCodecContext *avctx,
         s->new_palette = 0;
     }
 
-    *data_size=sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
 
     return buf_size;
 }
 
 static int flic_decode_frame_15_16BPP(AVCodecContext *avctx,
-                                      void *data, int *data_size,
+                                      void *data, int *got_frame,
                                       const uint8_t *buf, int buf_size)
 {
     /* Note, the only difference between the 15Bpp and 16Bpp */
@@ -748,14 +748,14 @@ static int flic_decode_frame_15_16BPP(AVCodecContext *avctx,
                "and final chunk ptr = %d\n", buf_size, bytestream2_tell(&g2));
 
 
-    *data_size=sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
 
     return buf_size;
 }
 
 static int flic_decode_frame_24BPP(AVCodecContext *avctx,
-                                   void *data, int *data_size,
+                                   void *data, int *got_frame,
                                    const uint8_t *buf, int buf_size)
 {
   av_log(avctx, AV_LOG_ERROR, "24Bpp FLC Unsupported due to lack of test files.\n");
@@ -763,22 +763,22 @@ static int flic_decode_frame_24BPP(AVCodecContext *avctx,
 }
 
 static int flic_decode_frame(AVCodecContext *avctx,
-                             void *data, int *data_size,
+                             void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
-      return flic_decode_frame_8BPP(avctx, data, data_size,
+      return flic_decode_frame_8BPP(avctx, data, got_frame,
                                     buf, buf_size);
     }
     else if ((avctx->pix_fmt == AV_PIX_FMT_RGB555) ||
              (avctx->pix_fmt == AV_PIX_FMT_RGB565)) {
-      return flic_decode_frame_15_16BPP(avctx, data, data_size,
+      return flic_decode_frame_15_16BPP(avctx, data, got_frame,
                                         buf, buf_size);
     }
     else if (avctx->pix_fmt == AV_PIX_FMT_BGR24) {
-      return flic_decode_frame_24BPP(avctx, data, data_size,
+      return flic_decode_frame_24BPP(avctx, data, got_frame,
                                      buf, buf_size);
     }
 
diff --git a/libavcodec/fraps.c b/libavcodec/fraps.c
index b624e4b305..6500c853e2 100644
--- a/libavcodec/fraps.c
+++ b/libavcodec/fraps.c
@@ -125,7 +125,7 @@ static int fraps2_decode_plane(FrapsContext *s, uint8_t *dst, int stride, int w,
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -164,7 +164,7 @@ static int decode_frame(AVCodecContext *avctx,
         needed_size += header_size;
         /* bit 31 means same as previous pic */
         if (header & (1U<<31)) {
-            *data_size = 0;
+            *got_frame = 0;
             return buf_size;
         }
         if (buf_size != needed_size) {
@@ -176,7 +176,7 @@ static int decode_frame(AVCodecContext *avctx,
     } else {
         /* skip frame */
         if (buf_size == 8) {
-            *data_size = 0;
+            *got_frame = 0;
             return buf_size;
         }
         if (AV_RL32(buf) != FPS_TAG || buf_size < planes*1024 + 24) {
@@ -291,7 +291,7 @@ static int decode_frame(AVCodecContext *avctx,
     }
 
     *frame = *f;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     return buf_size;
 }
diff --git a/libavcodec/frwu.c b/libavcodec/frwu.c
index 78c6dbd948..43feb012f2 100644
--- a/libavcodec/frwu.c
+++ b/libavcodec/frwu.c
@@ -45,7 +45,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     FRWUContext *s = avctx->priv_data;
@@ -107,7 +107,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         buf += field_size - min_field_size;
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = *pic;
 
     return avpkt->size;
diff --git a/libavcodec/gifdec.c b/libavcodec/gifdec.c
index acd9b29146..06b673b66f 100644
--- a/libavcodec/gifdec.c
+++ b/libavcodec/gifdec.c
@@ -415,7 +415,7 @@ static int gif_read_header1(GifState *s)
 static int gif_parse_next_image(GifState *s, int *got_picture)
 {
     int ret;
-    *got_picture = sizeof(AVPicture);
+    *got_picture = 1;
     while (s->bytestream < s->bytestream_end) {
         int code = bytestream_get_byte(&s->bytestream);
 
@@ -454,7 +454,7 @@ static av_cold int gif_decode_init(AVCodecContext *avctx)
     return 0;
 }
 
-static int gif_decode_frame(AVCodecContext *avctx, void *data, int *got_picture, AVPacket *avpkt)
+static int gif_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -505,10 +505,10 @@ static int gif_decode_frame(AVCodecContext *avctx, void *data, int *got_picture,
         s->picture.key_frame = 0;
     }
 
-    ret = gif_parse_next_image(s, got_picture);
+    ret = gif_parse_next_image(s, got_frame);
     if (ret < 0)
         return ret;
-    else if (*got_picture)
+    else if (*got_frame)
         *picture = s->picture;
 
     return s->bytestream - buf;
diff --git a/libavcodec/h261dec.c b/libavcodec/h261dec.c
index 9bd6b20bba..7cca7bb82e 100644
--- a/libavcodec/h261dec.c
+++ b/libavcodec/h261dec.c
@@ -551,7 +551,7 @@ static int get_consumed_bytes(MpegEncContext *s, int buf_size){
 }
 
 static int h261_decode_frame(AVCodecContext *avctx,
-                             void *data, int *data_size,
+                             void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -636,7 +636,7 @@ retry:
     *pict = s->current_picture_ptr->f;
     ff_print_debug_info(s, pict);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     return get_consumed_bytes(s, buf_size);
 }
diff --git a/libavcodec/h263.h b/libavcodec/h263.h
index a8d266d1f6..34d79a088d 100644
--- a/libavcodec/h263.h
+++ b/libavcodec/h263.h
@@ -69,7 +69,7 @@ int ff_h263_decode_motion(MpegEncContext * s, int pred, int f_code);
 av_const int ff_h263_aspect_to_info(AVRational aspect);
 int ff_h263_decode_init(AVCodecContext *avctx);
 int ff_h263_decode_frame(AVCodecContext *avctx,
-                             void *data, int *data_size,
+                             void *data, int *got_frame,
                              AVPacket *avpkt);
 int ff_h263_decode_end(AVCodecContext *avctx);
 void ff_h263_encode_mb(MpegEncContext *s,
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index c897bc31c6..d457466006 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -346,7 +346,7 @@ static int decode_slice(MpegEncContext *s){
 }
 
 int ff_h263_decode_frame(AVCodecContext *avctx,
-                             void *data, int *data_size,
+                             void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -368,7 +368,7 @@ uint64_t time= rdtsc();
             *pict = s->next_picture_ptr->f;
             s->next_picture_ptr= NULL;
 
-            *data_size = sizeof(AVFrame);
+            *got_frame = 1;
         }
 
         return 0;
@@ -753,7 +753,7 @@ intrax8_decoded:
     }
 
     if(s->last_picture_ptr || s->low_delay){
-        *data_size = sizeof(AVFrame);
+        *got_frame = 1;
         ff_print_debug_info(s, pict);
     }
 
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index e6730757b3..618acb74b2 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -4099,7 +4099,7 @@ static int get_consumed_bytes(MpegEncContext *s, int pos, int buf_size)
 }
 
 static int decode_frame(AVCodecContext *avctx, void *data,
-                        int *data_size, AVPacket *avpkt)
+                        int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size       = avpkt->size;
@@ -4136,7 +4136,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
             h->delayed_pic[i] = h->delayed_pic[i + 1];
 
         if (out) {
-            *data_size = sizeof(AVFrame);
+            *got_frame = 1;
             *pict      = out->f;
         }
 
@@ -4190,14 +4190,14 @@ not_extra:
         field_end(h, 0);
 
         /* Wait for second field. */
-        *data_size = 0;
+        *got_frame = 0;
         if (h->next_output_pic && (h->next_output_pic->sync || h->sync>1)) {
-            *data_size = sizeof(AVFrame);
+            *got_frame = 1;
             *pict      = h->next_output_pic->f;
         }
     }
 
-    assert(pict->data[0] || !*data_size);
+    assert(pict->data[0] || !*got_frame);
     ff_print_debug_info(s, pict);
 
     return get_consumed_bytes(s, buf_index, buf_size);
diff --git a/libavcodec/huffyuv.c b/libavcodec/huffyuv.c
index ca5bcd8588..6598144aeb 100644
--- a/libavcodec/huffyuv.c
+++ b/libavcodec/huffyuv.c
@@ -977,7 +977,7 @@ static void draw_slice(HYuvContext *s, int y)
     s->last_slice_end = y + h;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -1230,7 +1230,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     emms_c();
 
     *picture = *p;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     return (get_bits_count(&s->gb) + 31) / 32 * 4 + table_size;
 }
diff --git a/libavcodec/idcinvideo.c b/libavcodec/idcinvideo.c
index 6e7bcb2484..064e55f867 100644
--- a/libavcodec/idcinvideo.c
+++ b/libavcodec/idcinvideo.c
@@ -213,7 +213,7 @@ static int idcin_decode_vlcs(IdcinContext *s)
 }
 
 static int idcin_decode_frame(AVCodecContext *avctx,
-                              void *data, int *data_size,
+                              void *data, int *got_frame,
                               AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -243,7 +243,7 @@ static int idcin_decode_frame(AVCodecContext *avctx,
     /* make the palette available on the way out */
     memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
 
     /* report that the buffer was completely consumed */
diff --git a/libavcodec/iff.c b/libavcodec/iff.c
index 1f07492c22..0e4c172c79 100644
--- a/libavcodec/iff.c
+++ b/libavcodec/iff.c
@@ -591,7 +591,7 @@ static int unsupported(AVCodecContext *avctx)
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     IffContext *s = avctx->priv_data;
@@ -784,7 +784,7 @@ static int decode_frame(AVCodecContext *avctx,
         return unsupported(avctx);
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
     return buf_size;
 }
diff --git a/libavcodec/indeo2.c b/libavcodec/indeo2.c
index 74a9800e2b..fcd0ae46d4 100644
--- a/libavcodec/indeo2.c
+++ b/libavcodec/indeo2.c
@@ -138,7 +138,7 @@ static int ir2_decode_plane_inter(Ir2Context *ctx, int width, int height, uint8_
 }
 
 static int ir2_decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -191,7 +191,7 @@ static int ir2_decode_frame(AVCodecContext *avctx,
     }
 
     *picture   = s->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     return buf_size;
 }
diff --git a/libavcodec/indeo3.c b/libavcodec/indeo3.c
index c15463ddbb..a8206dbb00 100644
--- a/libavcodec/indeo3.c
+++ b/libavcodec/indeo3.c
@@ -1054,7 +1054,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
 }
 
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     Indeo3DecodeContext *ctx = avctx->priv_data;
@@ -1069,7 +1069,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     /* skip sync(null) frames */
     if (res) {
         // we have processed 16 bytes but no data was decoded
-        *data_size = 0;
+        *got_frame = 0;
         return buf_size;
     }
 
@@ -1115,7 +1115,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
                  ctx->frame.data[2], ctx->frame.linesize[2],
                  (avctx->height + 3) >> 2);
 
-    *data_size      = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = ctx->frame;
 
     return buf_size;
diff --git a/libavcodec/interplayvideo.c b/libavcodec/interplayvideo.c
index 82bcf85065..f1a2a3856a 100644
--- a/libavcodec/interplayvideo.c
+++ b/libavcodec/interplayvideo.c
@@ -957,7 +957,7 @@ static av_cold int ipvideo_decode_init(AVCodecContext *avctx)
 }
 
 static int ipvideo_decode_frame(AVCodecContext *avctx,
-                                void *data, int *data_size,
+                                void *data, int *got_frame,
                                 AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -992,7 +992,7 @@ static int ipvideo_decode_frame(AVCodecContext *avctx,
 
     ipvideo_decode_opcodes(s);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->current_frame;
 
     /* shuffle frames */
diff --git a/libavcodec/ivi_common.c b/libavcodec/ivi_common.c
index c2815da82e..53501b5c25 100644
--- a/libavcodec/ivi_common.c
+++ b/libavcodec/ivi_common.c
@@ -778,7 +778,7 @@ static int decode_band(IVI45DecContext *ctx,
     return result;
 }
 
-int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     IVI45DecContext *ctx = avctx->priv_data;
@@ -862,7 +862,7 @@ int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     ff_ivi_output_plane(&ctx->planes[2], ctx->frame.data[1], ctx->frame.linesize[1]);
     ff_ivi_output_plane(&ctx->planes[1], ctx->frame.data[2], ctx->frame.linesize[2]);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = ctx->frame;
 
     return buf_size;
diff --git a/libavcodec/ivi_common.h b/libavcodec/ivi_common.h
index e3afe435e0..65dcfd802e 100644
--- a/libavcodec/ivi_common.h
+++ b/libavcodec/ivi_common.h
@@ -389,7 +389,7 @@ int  ff_ivi_decode_blocks(GetBitContext *gb, IVIBandDesc *band, IVITile *tile);
  */
 void ff_ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, int dst_pitch);
 
-int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt);
 av_cold int ff_ivi_decode_close(AVCodecContext *avctx);
 
diff --git a/libavcodec/jvdec.c b/libavcodec/jvdec.c
index 5e54a1607f..53d8285788 100644
--- a/libavcodec/jvdec.c
+++ b/libavcodec/jvdec.c
@@ -129,7 +129,7 @@ static inline void decode8x8(GetBitContext *gb, uint8_t *dst, int linesize, DSPC
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     JvContext *s           = avctx->priv_data;
@@ -190,7 +190,7 @@ static int decode_frame(AVCodecContext *avctx,
         s->palette_has_changed       = 0;
         memcpy(s->frame.data[1], s->palette, AVPALETTE_SIZE);
 
-        *data_size      = sizeof(AVFrame);
+        *got_frame = 1;
         *(AVFrame*)data = s->frame;
     }
 
diff --git a/libavcodec/kgv1dec.c b/libavcodec/kgv1dec.c
index 66829bfae6..0199636822 100644
--- a/libavcodec/kgv1dec.c
+++ b/libavcodec/kgv1dec.c
@@ -43,7 +43,8 @@ static void decode_flush(AVCodecContext *avctx)
         avctx->release_buffer(avctx, &c->prev);
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
+                        AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     const uint8_t *buf_end = buf + avpkt->size;
@@ -155,7 +156,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
     if (outcnt - maxcnt)
         av_log(avctx, AV_LOG_DEBUG, "frame finished with %d diff\n", outcnt - maxcnt);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = c->cur;
 
     if (c->prev.data[0])
diff --git a/libavcodec/kmvc.c b/libavcodec/kmvc.c
index ebaaa84d94..edfafa0401 100644
--- a/libavcodec/kmvc.c
+++ b/libavcodec/kmvc.c
@@ -259,7 +259,8 @@ static int kmvc_decode_inter_8x8(KmvcContext * ctx, int w, int h)
     return 0;
 }
 
-static int decode_frame(AVCodecContext * avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext * avctx, void *data, int *got_frame,
+                        AVPacket *avpkt)
 {
     KmvcContext *const ctx = avctx->priv_data;
     uint8_t *out, *src;
@@ -361,7 +362,7 @@ static int decode_frame(AVCodecContext * avctx, void *data, int *data_size, AVPa
         ctx->prev = ctx->frm1;
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame *) data = ctx->pic;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/lagarith.c b/libavcodec/lagarith.c
index d0a5049542..3a1791785f 100644
--- a/libavcodec/lagarith.c
+++ b/libavcodec/lagarith.c
@@ -507,7 +507,7 @@ static int lag_decode_arith_plane(LagarithContext *l, uint8_t *dst,
  * @return number of consumed bytes on success or negative if decode fails
  */
 static int lag_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size, AVPacket *avpkt)
+                            void *data, int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     unsigned int buf_size = avpkt->size;
@@ -676,7 +676,7 @@ static int lag_decode_frame(AVCodecContext *avctx,
     }
 
     *picture = *p;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     return buf_size;
 }
diff --git a/libavcodec/lcldec.c b/libavcodec/lcldec.c
index 24274a7930..9b5e16decc 100644
--- a/libavcodec/lcldec.c
+++ b/libavcodec/lcldec.c
@@ -164,7 +164,7 @@ static int zlib_decomp(AVCodecContext *avctx, const uint8_t *src, int src_len, i
  * Decode a frame
  *
  */
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -469,7 +469,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
         return -1;
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = c->pic;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/libopenjpegdec.c b/libavcodec/libopenjpegdec.c
index 5f3c36bbe5..826a16fb84 100644
--- a/libavcodec/libopenjpegdec.c
+++ b/libavcodec/libopenjpegdec.c
@@ -230,7 +230,7 @@ static av_cold int libopenjpeg_decode_init_thread_copy(AVCodecContext *avctx)
 }
 
 static int libopenjpeg_decode_frame(AVCodecContext *avctx,
-                                    void *data, int *data_size,
+                                    void *data, int *got_frame,
                                     AVPacket *avpkt)
 {
     uint8_t *buf = avpkt->data;
@@ -246,7 +246,7 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
     int ispacked = 0;
     int i;
 
-    *data_size = 0;
+    *got_frame = 0;
 
     // Check if input is a raw jpeg2k codestream or in jp2 wrapping
     if ((AV_RB32(buf)     == 12)           &&
@@ -381,7 +381,7 @@ static int libopenjpeg_decode_frame(AVCodecContext *avctx,
     }
 
     *output    = ctx->image;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
     ret        = buf_size;
 
 done:
diff --git a/libavcodec/libschroedingerdec.c b/libavcodec/libschroedingerdec.c
index c98b4991ae..bce0271850 100644
--- a/libavcodec/libschroedingerdec.c
+++ b/libavcodec/libschroedingerdec.c
@@ -203,7 +203,7 @@ static void libschroedinger_handle_first_access_unit(AVCodecContext *avccontext)
 }
 
 static int libschroedinger_decode_frame(AVCodecContext *avccontext,
-                                        void *data, int *data_size,
+                                        void *data, int *got_frame,
                                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -221,7 +221,7 @@ static int libschroedinger_decode_frame(AVCodecContext *avccontext,
     SchroParseUnitContext parse_ctx;
     LibSchroFrameContext *framewithpts = NULL;
 
-    *data_size = 0;
+    *got_frame = 0;
 
     parse_context_init(&parse_ctx, buf, buf_size);
     if (!buf_size) {
@@ -337,14 +337,14 @@ static int libschroedinger_decode_frame(AVCodecContext *avccontext,
         p_schro_params->dec_frame.linesize[2] = framewithpts->frame->components[2].stride;
 
         *(AVFrame*)data = p_schro_params->dec_frame;
-        *data_size      = sizeof(AVFrame);
+        *got_frame      = 1;
 
         /* Now free the frame resources. */
         libschroedinger_decode_frame_free(framewithpts->frame);
         av_free(framewithpts);
     } else {
         data       = NULL;
-        *data_size = 0;
+        *got_frame = 0;
     }
     return buf_size;
 }
diff --git a/libavcodec/libvpxdec.c b/libavcodec/libvpxdec.c
index 61dbaa7998..809266a982 100644
--- a/libavcodec/libvpxdec.c
+++ b/libavcodec/libvpxdec.c
@@ -59,7 +59,7 @@ static av_cold int vp8_init(AVCodecContext *avctx)
 }
 
 static int vp8_decode(AVCodecContext *avctx,
-                      void *data, int *data_size, AVPacket *avpkt)
+                      void *data, int *got_frame, AVPacket *avpkt)
 {
     VP8Context *ctx = avctx->priv_data;
     AVFrame *picture = data;
@@ -100,7 +100,7 @@ static int vp8_decode(AVCodecContext *avctx,
         picture->linesize[1] = img->stride[1];
         picture->linesize[2] = img->stride[2];
         picture->linesize[3] = 0;
-        *data_size           = sizeof(AVPicture);
+        *got_frame           = 1;
     }
     return avpkt->size;
 }
diff --git a/libavcodec/loco.c b/libavcodec/loco.c
index 2aac453cb3..14b2fe93b8 100644
--- a/libavcodec/loco.c
+++ b/libavcodec/loco.c
@@ -161,7 +161,7 @@ static int loco_decode_plane(LOCOContext *l, uint8_t *data, int width, int heigh
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -231,7 +231,7 @@ static int decode_frame(AVCodecContext *avctx,
     }
 stop:
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = l->pic;
 
     return buf_size < 0 ? -1 : avpkt->size - buf_size;
diff --git a/libavcodec/mdec.c b/libavcodec/mdec.c
index 52b9040a39..364e999513 100644
--- a/libavcodec/mdec.c
+++ b/libavcodec/mdec.c
@@ -153,7 +153,7 @@ static inline void idct_put(MDECContext *a, int mb_x, int mb_y){
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -206,7 +206,7 @@ static int decode_frame(AVCodecContext *avctx,
     memset(p->qscale_table, a->qscale, a->mb_width);
 
     *picture   = a->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     return (get_bits_count(&a->gb)+31)/32*4;
 }
diff --git a/libavcodec/mimic.c b/libavcodec/mimic.c
index 25db9ca1ae..880bbc0ddd 100644
--- a/libavcodec/mimic.c
+++ b/libavcodec/mimic.c
@@ -301,7 +301,7 @@ static void prepare_avpic(MimicContext *ctx, AVPicture *dst, AVPicture *src)
 }
 
 static int mimic_decode_frame(AVCodecContext *avctx, void *data,
-                              int *data_size, AVPacket *avpkt)
+                              int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -389,7 +389,7 @@ static int mimic_decode_frame(AVCodecContext *avctx, void *data,
     }
 
     *(AVFrame*)data = ctx->buf_ptrs[ctx->cur_index];
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
 
     ctx->prev_index = ctx->next_prev_index;
     ctx->cur_index  = ctx->next_cur_index;
diff --git a/libavcodec/mjpegbdec.c b/libavcodec/mjpegbdec.c
index 796ef84260..52842332c2 100644
--- a/libavcodec/mjpegbdec.c
+++ b/libavcodec/mjpegbdec.c
@@ -38,7 +38,7 @@ static uint32_t read_offs(AVCodecContext *avctx, GetBitContext *gb, uint32_t siz
 }
 
 static int mjpegb_decode_frame(AVCodecContext *avctx,
-                              void *data, int *data_size,
+                              void *data, int *got_frame,
                               AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -142,7 +142,7 @@ read_header:
     }
 
     *picture= *s->picture_ptr;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     if(!s->lossless){
         picture->quality= FFMAX3(s->qscale[0], s->qscale[1], s->qscale[2]);
diff --git a/libavcodec/mjpegdec.c b/libavcodec/mjpegdec.c
index e1ff53ba72..b0dd85e33d 100644
--- a/libavcodec/mjpegdec.c
+++ b/libavcodec/mjpegdec.c
@@ -1598,7 +1598,7 @@ int ff_mjpeg_find_marker(MJpegDecodeContext *s,
     return start_code;
 }
 
-int ff_mjpeg_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+int ff_mjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                           AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -1712,7 +1712,7 @@ eoi_parser:
                         break;
                 }
                     *picture   = *s->picture_ptr;
-                    *data_size = sizeof(AVFrame);
+                    *got_frame = 1;
                     s->got_picture = 0;
 
                     if (!s->lossless) {
diff --git a/libavcodec/mjpegdec.h b/libavcodec/mjpegdec.h
index f35f20ac11..6c6195b3d3 100644
--- a/libavcodec/mjpegdec.h
+++ b/libavcodec/mjpegdec.h
@@ -119,7 +119,7 @@ typedef struct MJpegDecodeContext {
 int ff_mjpeg_decode_init(AVCodecContext *avctx);
 int ff_mjpeg_decode_end(AVCodecContext *avctx);
 int ff_mjpeg_decode_frame(AVCodecContext *avctx,
-                          void *data, int *data_size,
+                          void *data, int *got_frame,
                           AVPacket *avpkt);
 int ff_mjpeg_decode_dqt(MJpegDecodeContext *s);
 int ff_mjpeg_decode_dht(MJpegDecodeContext *s);
diff --git a/libavcodec/mmvideo.c b/libavcodec/mmvideo.c
index 0120e9f63a..c61cd576e4 100644
--- a/libavcodec/mmvideo.c
+++ b/libavcodec/mmvideo.c
@@ -173,7 +173,7 @@ static int mm_decode_inter(MmContext * s, int half_horiz, int half_vert)
 }
 
 static int mm_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -210,7 +210,7 @@ static int mm_decode_frame(AVCodecContext *avctx,
 
     memcpy(s->frame.data[1], s->palette, AVPALETTE_SIZE);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = s->frame;
 
     return avpkt->size;
diff --git a/libavcodec/motionpixels.c b/libavcodec/motionpixels.c
index 8d457e0370..61a718c5a9 100644
--- a/libavcodec/motionpixels.c
+++ b/libavcodec/motionpixels.c
@@ -245,7 +245,7 @@ static void mp_decode_frame_helper(MotionPixelsContext *mp, GetBitContext *gb)
 }
 
 static int mp_decode_frame(AVCodecContext *avctx,
-                                 void *data, int *data_size,
+                                 void *data, int *got_frame,
                                  AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -303,7 +303,7 @@ static int mp_decode_frame(AVCodecContext *avctx,
     ff_free_vlc(&mp->vlc);
 
 end:
-    *data_size = sizeof(AVFrame);
+    *got_frame       = 1;
     *(AVFrame *)data = mp->frame;
     return buf_size;
 }
diff --git a/libavcodec/msrle.c b/libavcodec/msrle.c
index 2792f8b004..a1ef037e49 100644
--- a/libavcodec/msrle.c
+++ b/libavcodec/msrle.c
@@ -81,7 +81,7 @@ static av_cold int msrle_decode_init(AVCodecContext *avctx)
 }
 
 static int msrle_decode_frame(AVCodecContext *avctx,
-                              void *data, int *data_size,
+                              void *data, int *got_frame,
                               AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -136,7 +136,7 @@ static int msrle_decode_frame(AVCodecContext *avctx,
         ff_msrle_decode(avctx, (AVPicture*)&s->frame, avctx->bits_per_coded_sample, &s->gb);
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = s->frame;
 
     /* report that the buffer was completely consumed */
diff --git a/libavcodec/mss1.c b/libavcodec/mss1.c
index 6a55b4fbfe..446339b094 100644
--- a/libavcodec/mss1.c
+++ b/libavcodec/mss1.c
@@ -135,7 +135,7 @@ static int decode_pal(MSS12Context *ctx, ArithCoder *acoder)
     return !!ncol;
 }
 
-static int mss1_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int mss1_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -180,7 +180,7 @@ static int mss1_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     memcpy(ctx->pic.data[1], c->pal, AVPALETTE_SIZE);
     ctx->pic.palette_has_changed = pal_changed;
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = ctx->pic;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/mss2.c b/libavcodec/mss2.c
index c3c4b35ab2..32a5032372 100644
--- a/libavcodec/mss2.c
+++ b/libavcodec/mss2.c
@@ -461,7 +461,7 @@ typedef struct Rectangle {
 #define MAX_WMV9_RECTANGLES 20
 #define ARITH2_PADDING 2
 
-static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -744,7 +744,7 @@ static int mss2_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     if (buf_size)
         av_log(avctx, AV_LOG_WARNING, "buffer not fully consumed\n");
 
-    *data_size       = sizeof(AVFrame);
+    *got_frame       = 1;
     *(AVFrame *)data = ctx->pic;
 
     return avpkt->size;
diff --git a/libavcodec/mss3.c b/libavcodec/mss3.c
index 91aceb2758..545fefc47a 100644
--- a/libavcodec/mss3.c
+++ b/libavcodec/mss3.c
@@ -674,7 +674,7 @@ static av_cold void init_coders(MSS3Context *ctx)
     }
 }
 
-static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -740,7 +740,7 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     c->pic.key_frame = keyframe;
     c->pic.pict_type = keyframe ? AV_PICTURE_TYPE_I : AV_PICTURE_TYPE_P;
     if (!bytestream2_get_bytes_left(&gb)) {
-        *data_size = sizeof(AVFrame);
+        *got_frame      = 1;
         *(AVFrame*)data = c->pic;
 
         return buf_size;
@@ -798,7 +798,7 @@ static int mss3_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         dst[2] += c->pic.linesize[2] * 8;
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = c->pic;
 
     return buf_size;
diff --git a/libavcodec/mss4.c b/libavcodec/mss4.c
index 51db721432..f575387e6e 100644
--- a/libavcodec/mss4.c
+++ b/libavcodec/mss4.c
@@ -506,7 +506,7 @@ static inline void mss4_update_dc_cache(MSS4Context *c, int mb_x)
     }
 }
 
-static int mss4_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int mss4_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -566,7 +566,7 @@ static int mss4_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     c->pic.pict_type = (frame_type == INTRA_FRAME) ? AV_PICTURE_TYPE_I
                                                    : AV_PICTURE_TYPE_P;
     if (frame_type == SKIP_FRAME) {
-        *data_size = sizeof(AVFrame);
+        *got_frame      = 1;
         *(AVFrame*)data = c->pic;
 
         return buf_size;
@@ -623,7 +623,7 @@ static int mss4_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         dst[2] += c->pic.linesize[2] * 16;
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = c->pic;
 
     return buf_size;
diff --git a/libavcodec/msvideo1.c b/libavcodec/msvideo1.c
index 8d1164bf8f..fd98b31327 100644
--- a/libavcodec/msvideo1.c
+++ b/libavcodec/msvideo1.c
@@ -287,7 +287,7 @@ static void msvideo1_decode_16bit(Msvideo1Context *s)
 }
 
 static int msvideo1_decode_frame(AVCodecContext *avctx,
-                                void *data, int *data_size,
+                                void *data, int *got_frame,
                                 AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -318,7 +318,7 @@ static int msvideo1_decode_frame(AVCodecContext *avctx,
     else
         msvideo1_decode_16bit(s);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = s->frame;
 
     /* report that the buffer was completely consumed */
diff --git a/libavcodec/mxpegdec.c b/libavcodec/mxpegdec.c
index 1e7b59397f..59d41b6abe 100644
--- a/libavcodec/mxpegdec.c
+++ b/libavcodec/mxpegdec.c
@@ -157,7 +157,7 @@ static int mxpeg_check_dimensions(MXpegDecodeContext *s, MJpegDecodeContext *jpg
 }
 
 static int mxpeg_decode_frame(AVCodecContext *avctx,
-                          void *data, int *data_size,
+                          void *data, int *got_frame,
                           AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -294,7 +294,7 @@ static int mxpeg_decode_frame(AVCodecContext *avctx,
 
 the_end:
     if (jpg->got_picture) {
-        *data_size = sizeof(AVFrame);
+        *got_frame = 1;
         *picture = *jpg->picture_ptr;
         s->picture_index ^= 1;
         jpg->picture_ptr = &s->picture[s->picture_index];
@@ -303,7 +303,7 @@ the_end:
             if (!s->got_mxm_bitmask)
                 s->has_complete_frame = 1;
             else
-                *data_size = 0;
+                *got_frame = 0;
         }
     }
 
diff --git a/libavcodec/nuv.c b/libavcodec/nuv.c
index 09868e8907..67c9c0f9fb 100644
--- a/libavcodec/nuv.c
+++ b/libavcodec/nuv.c
@@ -143,7 +143,7 @@ static int codec_reinit(AVCodecContext *avctx, int width, int height,
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -283,7 +283,7 @@ retry:
     }
 
     *picture   = c->pic;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     return orig_size;
 }
 
diff --git a/libavcodec/pcx.c b/libavcodec/pcx.c
index 7f24756047..bac818c586 100644
--- a/libavcodec/pcx.c
+++ b/libavcodec/pcx.c
@@ -75,7 +75,7 @@ static void pcx_palette(GetByteContext *gb, uint32_t *dst, int pallen)
         memset(dst, 0, (256 - pallen) * sizeof(*dst));
 }
 
-static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     PCXContext * const s = avctx->priv_data;
@@ -240,7 +240,7 @@ static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     }
 
     *picture = s->picture;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
 end:
     av_free(scanline);
diff --git a/libavcodec/pictordec.c b/libavcodec/pictordec.c
index 64dd8159c9..b7d7bf0cd4 100644
--- a/libavcodec/pictordec.c
+++ b/libavcodec/pictordec.c
@@ -106,7 +106,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     PicContext *s = avctx->priv_data;
@@ -258,7 +258,7 @@ static int decode_frame(AVCodecContext *avctx,
         }
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = s->frame;
     return avpkt->size;
 }
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index 06fd133c61..eb6e1a6713 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -505,7 +505,7 @@ static int decode_text_chunk(PNGDecContext *s, uint32_t length, int compressed,
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -845,7 +845,7 @@ static int decode_frame(AVCodecContext *avctx,
     s->current_picture->metadata = metadata;
     metadata = NULL;
     *picture= *s->current_picture;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     ret = bytestream2_tell(&s->gb);
  the_end:
diff --git a/libavcodec/pnmdec.c b/libavcodec/pnmdec.c
index 0c0973899c..fd17fe3499 100644
--- a/libavcodec/pnmdec.c
+++ b/libavcodec/pnmdec.c
@@ -26,7 +26,7 @@
 
 
 static int pnm_decode_frame(AVCodecContext *avctx, void *data,
-                            int *data_size, AVPacket *avpkt)
+                            int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf   = avpkt->data;
     int buf_size         = avpkt->size;
@@ -186,7 +186,7 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data,
         break;
     }
     *picture   = s->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     return s->bytestream - s->bytestream_start;
 }
diff --git a/libavcodec/proresdec_lgpl.c b/libavcodec/proresdec_lgpl.c
index ce2396960d..4fa2817e86 100644
--- a/libavcodec/proresdec_lgpl.c
+++ b/libavcodec/proresdec_lgpl.c
@@ -599,7 +599,7 @@ static int decode_picture(ProresContext *ctx, int pic_num,
 
 #define MOVE_DATA_PTR(nbytes) buf += (nbytes); buf_size -= (nbytes)
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     ProresContext *ctx = avctx->priv_data;
@@ -641,7 +641,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         MOVE_DATA_PTR(pic_data_size);
     }
 
-    *data_size       = sizeof(AVPicture);
+    *got_frame       = 1;
     *(AVFrame*) data = *avctx->coded_frame;
 
     return avpkt->size;
diff --git a/libavcodec/ptx.c b/libavcodec/ptx.c
index edb5936fe2..91231a8baa 100644
--- a/libavcodec/ptx.c
+++ b/libavcodec/ptx.c
@@ -38,7 +38,7 @@ static av_cold int ptx_init(AVCodecContext *avctx) {
     return 0;
 }
 
-static int ptx_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int ptx_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                             AVPacket *avpkt) {
     const uint8_t *buf = avpkt->data;
     const uint8_t *buf_end = avpkt->data + avpkt->size;
@@ -93,7 +93,7 @@ static int ptx_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     }
 
     *picture = s->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     if (y < h) {
         av_log(avctx, AV_LOG_WARNING, "incomplete packet\n");
diff --git a/libavcodec/qdrw.c b/libavcodec/qdrw.c
index 227ae1536c..2be6e04b64 100644
--- a/libavcodec/qdrw.c
+++ b/libavcodec/qdrw.c
@@ -35,7 +35,7 @@ typedef struct QdrawContext{
 } QdrawContext;
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -140,7 +140,7 @@ static int decode_frame(AVCodecContext *avctx,
         outdata += a->pic.linesize[0];
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = a->pic;
 
     return buf_size;
diff --git a/libavcodec/qpeg.c b/libavcodec/qpeg.c
index 565f6ad6c3..105ac69600 100644
--- a/libavcodec/qpeg.c
+++ b/libavcodec/qpeg.c
@@ -250,7 +250,7 @@ static void qpeg_decode_inter(QpegContext *qctx, uint8_t *dst,
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     uint8_t ctable[128];
@@ -296,7 +296,7 @@ static int decode_frame(AVCodecContext *avctx,
     }
     memcpy(a->pic.data[1], a->pal, AVPALETTE_SIZE);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = a->pic;
 
     return avpkt->size;
diff --git a/libavcodec/qtrle.c b/libavcodec/qtrle.c
index d02dffae6a..41fda4b3b6 100644
--- a/libavcodec/qtrle.c
+++ b/libavcodec/qtrle.c
@@ -400,7 +400,7 @@ static av_cold int qtrle_decode_init(AVCodecContext *avctx)
 }
 
 static int qtrle_decode_frame(AVCodecContext *avctx,
-                              void *data, int *data_size,
+                              void *data, int *got_frame,
                               AVPacket *avpkt)
 {
     QtrleContext *s = avctx->priv_data;
@@ -498,7 +498,7 @@ static int qtrle_decode_frame(AVCodecContext *avctx,
     }
 
 done:
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = s->frame;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/r210dec.c b/libavcodec/r210dec.c
index 902f92fbf3..d51a55719b 100644
--- a/libavcodec/r210dec.c
+++ b/libavcodec/r210dec.c
@@ -37,7 +37,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     int h, w;
@@ -90,7 +90,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         dst_line += pic->linesize[0];
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = *avctx->coded_frame;
 
     return avpkt->size;
diff --git a/libavcodec/rawdec.c b/libavcodec/rawdec.c
index f60f5e4465..5002ccc1fc 100644
--- a/libavcodec/rawdec.c
+++ b/libavcodec/rawdec.c
@@ -149,7 +149,7 @@ static void flip(AVCodecContext *avctx, AVPicture * picture){
 }
 
 static int raw_decode(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -267,7 +267,7 @@ static int raw_decode(AVCodecContext *avctx,
         }
     }
 
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
     return buf_size;
 }
 
diff --git a/libavcodec/rl2.c b/libavcodec/rl2.c
index 2e2d946fa2..642d31af32 100644
--- a/libavcodec/rl2.c
+++ b/libavcodec/rl2.c
@@ -173,7 +173,7 @@ static av_cold int rl2_decode_init(AVCodecContext *avctx)
 
 
 static int rl2_decode_frame(AVCodecContext *avctx,
-                              void *data, int *data_size,
+                              void *data, int *got_frame,
                               AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -197,7 +197,7 @@ static int rl2_decode_frame(AVCodecContext *avctx,
     /** make the palette available on the way out */
     memcpy(s->frame.data[1], s->palette, AVPALETTE_SIZE);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->frame;
 
     /** report that the buffer was completely consumed */
diff --git a/libavcodec/roqvideodec.c b/libavcodec/roqvideodec.c
index 3a8e904c33..c90939df04 100644
--- a/libavcodec/roqvideodec.c
+++ b/libavcodec/roqvideodec.c
@@ -188,7 +188,7 @@ static av_cold int roq_decode_init(AVCodecContext *avctx)
 }
 
 static int roq_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -210,7 +210,7 @@ static int roq_decode_frame(AVCodecContext *avctx,
     bytestream2_init(&s->gb, buf, buf_size);
     roqvideo_decode_frame(s);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = *s->current_frame;
 
     /* shuffle frames */
diff --git a/libavcodec/rpza.c b/libavcodec/rpza.c
index 498c36e7b8..a424759953 100644
--- a/libavcodec/rpza.c
+++ b/libavcodec/rpza.c
@@ -245,7 +245,7 @@ static av_cold int rpza_decode_init(AVCodecContext *avctx)
 }
 
 static int rpza_decode_frame(AVCodecContext *avctx,
-                             void *data, int *data_size,
+                             void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -264,7 +264,7 @@ static int rpza_decode_frame(AVCodecContext *avctx,
 
     rpza_decode_stream(s);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = s->frame;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c
index d06a2fe1b2..db39f4627b 100644
--- a/libavcodec/rv10.c
+++ b/libavcodec/rv10.c
@@ -670,7 +670,7 @@ static int get_slice_offset(AVCodecContext *avctx, const uint8_t *buf, int n)
 }
 
 static int rv10_decode_frame(AVCodecContext *avctx,
-                             void *data, int *data_size,
+                             void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -737,7 +737,7 @@ static int rv10_decode_frame(AVCodecContext *avctx,
         }
 
         if(s->last_picture_ptr || s->low_delay){
-            *data_size = sizeof(AVFrame);
+            *got_frame = 1;
             ff_print_debug_info(s, pict);
         }
         s->current_picture_ptr= NULL; //so we can detect if frame_end wasnt called (find some nicer solution...)
diff --git a/libavcodec/rv34.h b/libavcodec/rv34.h
index 6b8d36556f..bb18b45d22 100644
--- a/libavcodec/rv34.h
+++ b/libavcodec/rv34.h
@@ -133,7 +133,7 @@ typedef struct RV34DecContext{
  */
 int ff_rv34_get_start_offset(GetBitContext *gb, int blocks);
 int ff_rv34_decode_init(AVCodecContext *avctx);
-int ff_rv34_decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt);
+int ff_rv34_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt);
 int ff_rv34_decode_end(AVCodecContext *avctx);
 int ff_rv34_decode_init_thread_copy(AVCodecContext *avctx);
 int ff_rv34_decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src);
diff --git a/libavcodec/sgidec.c b/libavcodec/sgidec.c
index 7ea9b6d69a..555b5044af 100644
--- a/libavcodec/sgidec.c
+++ b/libavcodec/sgidec.c
@@ -152,7 +152,7 @@ static int read_uncompressed_sgi(unsigned char* out_buf, SgiState *s)
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     SgiState *s = avctx->priv_data;
@@ -234,7 +234,7 @@ static int decode_frame(AVCodecContext *avctx,
 
     if (ret == 0) {
         *picture   = s->picture;
-        *data_size = sizeof(AVPicture);
+        *got_frame = 1;
         return avpkt->size;
     } else {
         return ret;
diff --git a/libavcodec/smacker.c b/libavcodec/smacker.c
index 939bac49c0..1a73dcce0d 100644
--- a/libavcodec/smacker.c
+++ b/libavcodec/smacker.c
@@ -365,7 +365,8 @@ static av_always_inline int smk_get_code(GetBitContext *gb, int *recode, int *la
     return v;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
+                        AVPacket *avpkt)
 {
     SmackVContext * const smk = avctx->priv_data;
     uint8_t *out;
@@ -512,7 +513,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
 
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = smk->pic;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/smc.c b/libavcodec/smc.c
index 402c8040f0..6294f09691 100644
--- a/libavcodec/smc.c
+++ b/libavcodec/smc.c
@@ -423,7 +423,7 @@ static av_cold int smc_decode_init(AVCodecContext *avctx)
 }
 
 static int smc_decode_frame(AVCodecContext *avctx,
-                             void *data, int *data_size,
+                             void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -448,7 +448,7 @@ static int smc_decode_frame(AVCodecContext *avctx,
 
     smc_decode_stream(s);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = s->frame;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/snowdec.c b/libavcodec/snowdec.c
index abb6a82f21..c4baf0a7d1 100644
--- a/libavcodec/snowdec.c
+++ b/libavcodec/snowdec.c
@@ -391,7 +391,9 @@ static int decode_blocks(SnowContext *s){
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt){
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
+                        AVPacket *avpkt)
+{
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
     SnowContext *s = avctx->priv_data;
@@ -553,7 +555,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
     else
         *picture= s->mconly_picture;
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     bytes_read= c->bytestream - c->bytestream_start;
     if(bytes_read ==0) av_log(s->avctx, AV_LOG_ERROR, "error at end of frame\n"); //FIXME
diff --git a/libavcodec/sp5xdec.c b/libavcodec/sp5xdec.c
index 7216088e7f..b083015f00 100644
--- a/libavcodec/sp5xdec.c
+++ b/libavcodec/sp5xdec.c
@@ -31,7 +31,7 @@
 
 
 static int sp5x_decode_frame(AVCodecContext *avctx,
-                              void *data, int *data_size,
+                              void *data, int *got_frame,
                               AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -86,7 +86,7 @@ static int sp5x_decode_frame(AVCodecContext *avctx,
     av_init_packet(&avpkt_recoded);
     avpkt_recoded.data = recoded;
     avpkt_recoded.size = j;
-    i = ff_mjpeg_decode_frame(avctx, data, data_size, &avpkt_recoded);
+    i = ff_mjpeg_decode_frame(avctx, data, got_frame, &avpkt_recoded);
 
     av_free(recoded);
 
diff --git a/libavcodec/sunrast.c b/libavcodec/sunrast.c
index f85bb96844..bfdf2b7e2a 100644
--- a/libavcodec/sunrast.c
+++ b/libavcodec/sunrast.c
@@ -40,7 +40,8 @@ static av_cold int sunrast_init(AVCodecContext *avctx) {
 }
 
 static int sunrast_decode_frame(AVCodecContext *avctx, void *data,
-                                int *data_size, AVPacket *avpkt) {
+                                int *got_frame, AVPacket *avpkt)
+{
     const uint8_t *buf       = avpkt->data;
     const uint8_t *buf_end   = avpkt->data + avpkt->size;
     SUNRASTContext * const s = avctx->priv_data;
@@ -222,7 +223,7 @@ static int sunrast_decode_frame(AVCodecContext *avctx, void *data,
     }
 
     *picture   = s->picture;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     return buf - bufstart;
 }
diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c
index 27e9606f88..efe23f1e35 100644
--- a/libavcodec/svq1dec.c
+++ b/libavcodec/svq1dec.c
@@ -583,7 +583,7 @@ static int svq1_decode_frame_header(GetBitContext *bitbuf, MpegEncContext *s)
 }
 
 static int svq1_decode_frame(AVCodecContext *avctx, void *data,
-                             int *data_size, AVPacket *avpkt)
+                             int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size       = avpkt->size;
@@ -707,7 +707,7 @@ static int svq1_decode_frame(AVCodecContext *avctx, void *data,
 
     ff_MPV_frame_end(s);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     result     = buf_size;
 
 err:
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c
index e19542252c..c50efbc70f 100644
--- a/libavcodec/svq3.c
+++ b/libavcodec/svq3.c
@@ -1008,7 +1008,7 @@ static av_cold int svq3_decode_init(AVCodecContext *avctx)
 }
 
 static int svq3_decode_frame(AVCodecContext *avctx, void *data,
-                             int *data_size, AVPacket *avpkt)
+                             int *got_frame, AVPacket *avpkt)
 {
     SVQ3Context *svq3  = avctx->priv_data;
     H264Context *h     = &svq3->h;
@@ -1022,7 +1022,7 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data,
         if (s->next_picture_ptr && !s->low_delay) {
             *(AVFrame *) data   = s->next_picture.f;
             s->next_picture_ptr = NULL;
-            *data_size          = sizeof(AVFrame);
+            *got_frame          = 1;
         }
         return 0;
     }
@@ -1167,7 +1167,7 @@ static int svq3_decode_frame(AVCodecContext *avctx, void *data,
 
     /* Do not output the last pic after seeking. */
     if (s->last_picture_ptr || s->low_delay)
-        *data_size = sizeof(AVFrame);
+        *got_frame = 1;
 
     return buf_size;
 }
diff --git a/libavcodec/targa.c b/libavcodec/targa.c
index 5c0efb3f40..6bb05a93ad 100644
--- a/libavcodec/targa.c
+++ b/libavcodec/targa.c
@@ -108,7 +108,7 @@ static int targa_decode_rle(AVCodecContext *avctx, TargaContext *s,
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     TargaContext * const s = avctx->priv_data;
@@ -298,7 +298,7 @@ static int decode_frame(AVCodecContext *avctx,
     }
 
     *picture   = s->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     return avpkt->size;
 }
diff --git a/libavcodec/tiertexseqv.c b/libavcodec/tiertexseqv.c
index 62b7eeb25d..3ae7c88174 100644
--- a/libavcodec/tiertexseqv.c
+++ b/libavcodec/tiertexseqv.c
@@ -223,7 +223,7 @@ static av_cold int seqvideo_decode_init(AVCodecContext *avctx)
 }
 
 static int seqvideo_decode_frame(AVCodecContext *avctx,
-                                 void *data, int *data_size,
+                                 void *data, int *got_frame,
                                  AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -241,7 +241,7 @@ static int seqvideo_decode_frame(AVCodecContext *avctx,
     if (seqvideo_decode(seq, buf, buf_size))
         return AVERROR_INVALIDDATA;
 
-    *data_size = sizeof(AVFrame);
+    *got_frame       = 1;
     *(AVFrame *)data = seq->frame;
 
     return buf_size;
diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c
index f7a1e75209..64e4e41ca3 100644
--- a/libavcodec/tiff.c
+++ b/libavcodec/tiff.c
@@ -984,7 +984,7 @@ static int tiff_decode_tag(TiffContext *s)
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size, AVPacket *avpkt)
+                        void *data, int *got_frame, AVPacket *avpkt)
 {
     TiffContext *const s = avctx->priv_data;
     AVFrame *picture = data;
@@ -1151,7 +1151,7 @@ static int decode_frame(AVCodecContext *avctx,
         }
     }
     *picture   = s->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     return avpkt->size;
 }
diff --git a/libavcodec/tmv.c b/libavcodec/tmv.c
index 63ec830f6d..2179dfbd6f 100644
--- a/libavcodec/tmv.c
+++ b/libavcodec/tmv.c
@@ -40,7 +40,7 @@ typedef struct TMVContext {
 } TMVContext;
 
 static int tmv_decode_frame(AVCodecContext *avctx, void *data,
-                            int *data_size, AVPacket *avpkt)
+                            int *got_frame, AVPacket *avpkt)
 {
     TMVContext *tmv    = avctx->priv_data;
     const uint8_t *src = avpkt->data;
@@ -60,7 +60,7 @@ static int tmv_decode_frame(AVCodecContext *avctx, void *data,
     if (avpkt->size < 2*char_rows*char_cols) {
         av_log(avctx, AV_LOG_ERROR,
                "Input buffer too small, truncated sample?\n");
-        *data_size = 0;
+        *got_frame = 0;
         return -1;
     }
 
@@ -82,7 +82,7 @@ static int tmv_decode_frame(AVCodecContext *avctx, void *data,
         dst += tmv->pic.linesize[0] * 8;
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame *)data = tmv->pic;
     return avpkt->size;
 }
diff --git a/libavcodec/truemotion1.c b/libavcodec/truemotion1.c
index b46366b837..6378d6388d 100644
--- a/libavcodec/truemotion1.c
+++ b/libavcodec/truemotion1.c
@@ -856,7 +856,7 @@ static void truemotion1_decode_24bit(TrueMotion1Context *s)
 
 
 static int truemotion1_decode_frame(AVCodecContext *avctx,
-                                    void *data, int *data_size,
+                                    void *data, int *got_frame,
                                     AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -883,7 +883,7 @@ static int truemotion1_decode_frame(AVCodecContext *avctx,
         truemotion1_decode_16bit(s);
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = s->frame;
 
     /* report that the buffer was completely consumed */
diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c
index f1e24b729c..20322435c5 100644
--- a/libavcodec/truemotion2.c
+++ b/libavcodec/truemotion2.c
@@ -826,7 +826,7 @@ static const int tm2_stream_order[TM2_NUM_STREAMS] = {
 };
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -873,7 +873,7 @@ static int decode_frame(AVCodecContext *avctx,
         p->pict_type = AV_PICTURE_TYPE_P;
 
     l->cur = !l->cur;
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = l->pic;
 
     return buf_size;
diff --git a/libavcodec/tscc.c b/libavcodec/tscc.c
index aaf2127c11..2aca0ba3b0 100644
--- a/libavcodec/tscc.c
+++ b/libavcodec/tscc.c
@@ -71,7 +71,8 @@ typedef struct TsccContext {
  * Decode a frame
  *
  */
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
+                        AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -121,7 +122,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
         memcpy(c->pic.data[1], c->pal, AVPALETTE_SIZE);
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = c->pic;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/tscc2.c b/libavcodec/tscc2.c
index 8692819942..b71e7fa25b 100644
--- a/libavcodec/tscc2.c
+++ b/libavcodec/tscc2.c
@@ -211,7 +211,7 @@ static int tscc2_decode_slice(TSCC2Context *c, int mb_y,
 }
 
 static int tscc2_decode_frame(AVCodecContext *avctx, void *data,
-                              int *data_size, AVPacket *avpkt)
+                              int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -238,7 +238,7 @@ static int tscc2_decode_frame(AVCodecContext *avctx, void *data,
     }
 
     if (frame_type == 0) {
-        *data_size      = sizeof(AVFrame);
+        *got_frame      = 1;
         *(AVFrame*)data = c->pic;
 
         return buf_size;
@@ -322,7 +322,7 @@ static int tscc2_decode_frame(AVCodecContext *avctx, void *data,
         bytestream2_skip(&gb, size);
     }
 
-    *data_size      = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = c->pic;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/txd.c b/libavcodec/txd.c
index 29de782cce..2dd82598a4 100644
--- a/libavcodec/txd.c
+++ b/libavcodec/txd.c
@@ -41,7 +41,7 @@ static av_cold int txd_init(AVCodecContext *avctx) {
     return 0;
 }
 
-static int txd_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int txd_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                             AVPacket *avpkt) {
     TXDContext * const s = avctx->priv_data;
     GetByteContext gb;
@@ -143,7 +143,7 @@ static int txd_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     }
 
     *picture   = s->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     return avpkt->size;
 
diff --git a/libavcodec/ulti.c b/libavcodec/ulti.c
index f6d6418961..a9413ad728 100644
--- a/libavcodec/ulti.c
+++ b/libavcodec/ulti.c
@@ -210,7 +210,7 @@ static void ulti_grad(AVFrame *frame, int x, int y, uint8_t *Y, int chroma, int
 }
 
 static int ulti_decode_frame(AVCodecContext *avctx,
-                             void *data, int *data_size,
+                             void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -407,7 +407,7 @@ static int ulti_decode_frame(AVCodecContext *avctx,
         }
     }
 
-    *data_size=sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data= s->frame;
 
     return buf_size;
diff --git a/libavcodec/utvideodec.c b/libavcodec/utvideodec.c
index cfeb46bbb0..259030aac5 100644
--- a/libavcodec/utvideodec.c
+++ b/libavcodec/utvideodec.c
@@ -320,7 +320,7 @@ static void restore_median_il(uint8_t *src, int step, int stride,
     }
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -463,7 +463,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     c->pic.pict_type = AV_PICTURE_TYPE_I;
     c->pic.interlaced_frame = !!c->interlaced;
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = c->pic;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/v210dec.c b/libavcodec/v210dec.c
index b0754767a9..63037adb8d 100644
--- a/libavcodec/v210dec.c
+++ b/libavcodec/v210dec.c
@@ -72,7 +72,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     V210DecContext *s = avctx->priv_data;
@@ -154,7 +154,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         v += pic->linesize[2] / 2 - avctx->width / 2;
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = *avctx->coded_frame;
 
     return avpkt->size;
diff --git a/libavcodec/v210x.c b/libavcodec/v210x.c
index 900281a0c4..f973124122 100644
--- a/libavcodec/v210x.c
+++ b/libavcodec/v210x.c
@@ -40,7 +40,8 @@ static av_cold int decode_init(AVCodecContext *avctx)
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
+                        AVPacket *avpkt)
 {
     int y=0;
     int width= avctx->width;
@@ -121,7 +122,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
         }
     }
 
-    *data_size=sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data= *avctx->coded_frame;
 
     return avpkt->size;
diff --git a/libavcodec/v410dec.c b/libavcodec/v410dec.c
index 52cdf3218d..ff2381741a 100644
--- a/libavcodec/v410dec.c
+++ b/libavcodec/v410dec.c
@@ -50,7 +50,7 @@ static av_cold int v410_decode_init(AVCodecContext *avctx)
 }
 
 static int v410_decode_frame(AVCodecContext *avctx, void *data,
-                             int *data_size, AVPacket *avpkt)
+                             int *got_frame, AVPacket *avpkt)
 {
     AVFrame *pic = avctx->coded_frame;
     uint8_t *src = avpkt->data;
@@ -96,7 +96,7 @@ static int v410_decode_frame(AVCodecContext *avctx, void *data,
         v += pic->linesize[2] >> 1;
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame *)data = *pic;
 
     return avpkt->size;
diff --git a/libavcodec/vb.c b/libavcodec/vb.c
index 79f3cae64a..11225869f1 100644
--- a/libavcodec/vb.c
+++ b/libavcodec/vb.c
@@ -185,7 +185,8 @@ static int vb_decode_framedata(VBDecContext *c, int offset)
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
+                        AVPacket *avpkt)
 {
     VBDecContext * const c = avctx->priv_data;
     uint8_t *outptr, *srcptr;
@@ -239,7 +240,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
 
     FFSWAP(uint8_t*, c->frame, c->prev_frame);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = c->pic;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/vble.c b/libavcodec/vble.c
index 22e92a45bb..c8037bdb80 100644
--- a/libavcodec/vble.c
+++ b/libavcodec/vble.c
@@ -111,7 +111,7 @@ static void vble_restore_plane(VBLEContext *ctx, GetBitContext *gb, int plane,
     }
 }
 
-static int vble_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int vble_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                              AVPacket *avpkt)
 {
     VBLEContext *ctx = avctx->priv_data;
@@ -169,7 +169,7 @@ static int vble_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         vble_restore_plane(ctx, &gb, 2, offset, width_uv, height_uv);
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame       = 1;
     *(AVFrame *)data = *pic;
 
     return avpkt->size;
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index 0946db5334..690cb39a3d 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -5335,7 +5335,7 @@ av_cold int ff_vc1_decode_end(AVCodecContext *avctx)
  * @todo TODO: Handle VC-1 IDUs (Transport level?)
  */
 static int vc1_decode_frame(AVCodecContext *avctx, void *data,
-                            int *data_size, AVPacket *avpkt)
+                            int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size, n_slices = 0, i;
@@ -5363,7 +5363,7 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data,
             *pict = s->next_picture_ptr->f;
             s->next_picture_ptr = NULL;
 
-            *data_size = sizeof(AVFrame);
+            *got_frame = 1;
         }
 
         return buf_size;
@@ -5745,7 +5745,7 @@ image:
             goto err;
 #endif
         *pict      = v->sprite_output_frame;
-        *data_size = sizeof(AVFrame);
+        *got_frame = 1;
     } else {
         if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) {
             *pict = s->current_picture_ptr->f;
@@ -5753,7 +5753,7 @@ image:
             *pict = s->last_picture_ptr->f;
         }
         if (s->last_picture_ptr || s->low_delay) {
-            *data_size = sizeof(AVFrame);
+            *got_frame = 1;
             ff_print_debug_info(s, pict);
         }
     }
diff --git a/libavcodec/vcr1.c b/libavcodec/vcr1.c
index 6486e63a0d..778ad0d8c2 100644
--- a/libavcodec/vcr1.c
+++ b/libavcodec/vcr1.c
@@ -69,7 +69,7 @@ static av_cold int vcr1_decode_end(AVCodecContext *avctx)
 }
 
 static int vcr1_decode_frame(AVCodecContext *avctx, void *data,
-                             int *data_size, AVPacket *avpkt)
+                             int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf        = avpkt->data;
     int buf_size              = avpkt->size;
@@ -143,7 +143,7 @@ static int vcr1_decode_frame(AVCodecContext *avctx, void *data,
     }
 
     *picture   = a->picture;
-    *data_size = sizeof(AVPicture);
+    *got_frame = 1;
 
     return buf_size;
 }
diff --git a/libavcodec/vmdav.c b/libavcodec/vmdav.c
index 3278c6fdcc..6da60c14a1 100644
--- a/libavcodec/vmdav.c
+++ b/libavcodec/vmdav.c
@@ -412,7 +412,7 @@ static av_cold int vmdvideo_decode_init(AVCodecContext *avctx)
 }
 
 static int vmdvideo_decode_frame(AVCodecContext *avctx,
-                                 void *data, int *data_size,
+                                 void *data, int *got_frame,
                                  AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -441,7 +441,7 @@ static int vmdvideo_decode_frame(AVCodecContext *avctx,
     if (s->frame.data[0])
         avctx->release_buffer(avctx, &s->frame);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = s->prev_frame;
 
     /* report that the buffer was completely consumed */
diff --git a/libavcodec/vmnc.c b/libavcodec/vmnc.c
index d465f305cc..eb39fc923d 100644
--- a/libavcodec/vmnc.c
+++ b/libavcodec/vmnc.c
@@ -285,7 +285,8 @@ static int decode_hextile(VmncContext *c, uint8_t* dst, const uint8_t* src, int
     return src - ssrc;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
+                        AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -454,7 +455,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
             put_cursor(outptr, c->pic.linesize[0], c, c->cur_x, c->cur_y);
         }
     }
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = c->pic;
 
     /* always report that the buffer was completely consumed */
diff --git a/libavcodec/vp3.c b/libavcodec/vp3.c
index 7e129f668d..34061016a9 100644
--- a/libavcodec/vp3.c
+++ b/libavcodec/vp3.c
@@ -1903,7 +1903,7 @@ static int vp3_update_thread_context(AVCodecContext *dst, const AVCodecContext *
 }
 
 static int vp3_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -2040,7 +2040,7 @@ static int vp3_decode_frame(AVCodecContext *avctx,
     }
     vp3_draw_horiz_band(s, s->avctx->height);
 
-    *data_size=sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data= s->current_frame;
 
     if (!HAVE_THREADS || !(s->avctx->active_thread_type&FF_THREAD_FRAME))
diff --git a/libavcodec/vp56.c b/libavcodec/vp56.c
index 1a7c36ef13..adde128a62 100644
--- a/libavcodec/vp56.c
+++ b/libavcodec/vp56.c
@@ -492,7 +492,7 @@ static int vp56_size_changed(VP56Context *s)
 
 static int ff_vp56_decode_mbs(AVCodecContext *avctx, void *, int, int);
 
-int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                          AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -586,7 +586,7 @@ int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     p->qscale_table = s->qscale_table;
     p->qscale_type = FF_QSCALE_TYPE_VP56;
     *(AVFrame*)data = *p;
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
 
     return avpkt->size;
 }
diff --git a/libavcodec/vp56.h b/libavcodec/vp56.h
index 65245a2246..838ce48c3d 100644
--- a/libavcodec/vp56.h
+++ b/libavcodec/vp56.h
@@ -183,7 +183,7 @@ void ff_vp56_init_context(AVCodecContext *avctx, VP56Context *s,
 int ff_vp56_free(AVCodecContext *avctx);
 int ff_vp56_free_context(VP56Context *s);
 void ff_vp56_init_dequant(VP56Context *s, int quantizer);
-int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                          AVPacket *avpkt);
 
 
diff --git a/libavcodec/vp8.c b/libavcodec/vp8.c
index 9424c458af..227ae6a8ab 100644
--- a/libavcodec/vp8.c
+++ b/libavcodec/vp8.c
@@ -1856,7 +1856,7 @@ static int vp8_decode_mb_row_sliced(AVCodecContext *avctx, void *tdata,
     return 0;
 }
 
-static int vp8_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int vp8_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     VP8Context *s = avctx->priv_data;
@@ -2005,7 +2005,7 @@ skip_decode:
 
     if (!s->invisible) {
         *(AVFrame*)data = *curframe;
-        *data_size = sizeof(AVFrame);
+        *got_frame      = 1;
     }
 
     return avpkt->size;
diff --git a/libavcodec/vqavideo.c b/libavcodec/vqavideo.c
index e1afca3c2d..19b8639c59 100644
--- a/libavcodec/vqavideo.c
+++ b/libavcodec/vqavideo.c
@@ -583,7 +583,7 @@ static int vqa_decode_chunk(VqaContext *s)
 }
 
 static int vqa_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     VqaContext *s = avctx->priv_data;
@@ -605,7 +605,7 @@ static int vqa_decode_frame(AVCodecContext *avctx,
     memcpy(s->frame.data[1], s->palette, PALETTE_COUNT * 4);
     s->frame.palette_has_changed = 1;
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = s->frame;
 
     /* report that the buffer was completely consumed */
diff --git a/libavcodec/wnv1.c b/libavcodec/wnv1.c
index a99796632d..5dffde1fec 100644
--- a/libavcodec/wnv1.c
+++ b/libavcodec/wnv1.c
@@ -59,7 +59,7 @@ static inline int wnv1_get_code(WNV1Context *w, int base_value)
 }
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -129,7 +129,7 @@ static int decode_frame(AVCodecContext *avctx,
     }
 
 
-    *data_size = sizeof(AVFrame);
+    *got_frame      = 1;
     *(AVFrame*)data = l->pic;
     av_free(rbuf);
 
diff --git a/libavcodec/xan.c b/libavcodec/xan.c
index da6627c065..2aa420e508 100644
--- a/libavcodec/xan.c
+++ b/libavcodec/xan.c
@@ -512,7 +512,7 @@ static const uint8_t gamma_lookup[256] = {
 #endif
 
 static int xan_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -605,7 +605,7 @@ static int xan_decode_frame(AVCodecContext *avctx,
     if (s->last_frame.data[0])
         avctx->release_buffer(avctx, &s->last_frame);
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->current_frame;
 
     /* shuffle frames */
diff --git a/libavcodec/xl.c b/libavcodec/xl.c
index 3103ff463b..df354893a5 100644
--- a/libavcodec/xl.c
+++ b/libavcodec/xl.c
@@ -42,7 +42,7 @@ static const int xl_table[32] = {
 };
 
 static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *data_size,
+                        void *data, int *got_frame,
                         AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
@@ -128,7 +128,7 @@ static int decode_frame(AVCodecContext *avctx,
         V += a->pic.linesize[2];
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = a->pic;
 
     return buf_size;
diff --git a/libavcodec/xwddec.c b/libavcodec/xwddec.c
index 2f8453734e..9923cdc343 100644
--- a/libavcodec/xwddec.c
+++ b/libavcodec/xwddec.c
@@ -36,7 +36,7 @@ static av_cold int xwd_decode_init(AVCodecContext *avctx)
 }
 
 static int xwd_decode_frame(AVCodecContext *avctx, void *data,
-                            int *data_size, AVPacket *avpkt)
+                            int *got_frame, AVPacket *avpkt)
 {
     AVFrame *p = avctx->coded_frame;
     const uint8_t *buf = avpkt->data;
@@ -245,7 +245,7 @@ static int xwd_decode_frame(AVCodecContext *avctx, void *data,
         ptr += p->linesize[0];
     }
 
-    *data_size = sizeof(AVFrame);
+    *got_frame       = 1;
     *(AVFrame *)data = *p;
 
     return buf_size;
diff --git a/libavcodec/xxan.c b/libavcodec/xxan.c
index 47b3544b05..ed1821772f 100644
--- a/libavcodec/xxan.c
+++ b/libavcodec/xxan.c
@@ -369,7 +369,7 @@ static int xan_decode_frame_type1(AVCodecContext *avctx)
 }
 
 static int xan_decode_frame(AVCodecContext *avctx,
-                            void *data, int *data_size,
+                            void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     XanContext *s = avctx->priv_data;
@@ -401,7 +401,7 @@ static int xan_decode_frame(AVCodecContext *avctx,
     if (ret)
         return ret;
 
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = s->pic;
 
     return avpkt->size;
diff --git a/libavcodec/yop.c b/libavcodec/yop.c
index 856d6f4e26..16a2db13e4 100644
--- a/libavcodec/yop.c
+++ b/libavcodec/yop.c
@@ -192,7 +192,7 @@ static void yop_next_macroblock(YopDecContext *s)
     s->dstptr += 2;
 }
 
-static int yop_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
+static int yop_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
                             AVPacket *avpkt)
 {
     YopDecContext *s = avctx->priv_data;
@@ -259,7 +259,7 @@ static int yop_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         yop_next_macroblock(s);
     }
 
-    *data_size        = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame *) data = s->frame;
     return avpkt->size;
 }
diff --git a/libavcodec/zerocodec.c b/libavcodec/zerocodec.c
index e5edb5f0ed..f54abb1c1b 100644
--- a/libavcodec/zerocodec.c
+++ b/libavcodec/zerocodec.c
@@ -29,7 +29,7 @@ typedef struct {
 } ZeroCodecContext;
 
 static int zerocodec_decode_frame(AVCodecContext *avctx, void *data,
-                                  int *data_size, AVPacket *avpkt)
+                                  int *got_frame, AVPacket *avpkt)
 {
     ZeroCodecContext *zc = avctx->priv_data;
     AVFrame *pic         = avctx->coded_frame;
@@ -98,7 +98,7 @@ static int zerocodec_decode_frame(AVCodecContext *avctx, void *data,
     if (prev_pic->data[0])
         avctx->release_buffer(avctx, prev_pic);
 
-    *data_size       = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame *)data = *pic;
 
     /* Store the previous frame for use later.
diff --git a/libavcodec/zmbv.c b/libavcodec/zmbv.c
index 6d25056c85..167f6f8826 100644
--- a/libavcodec/zmbv.c
+++ b/libavcodec/zmbv.c
@@ -398,7 +398,7 @@ static int zmbv_decode_intra(ZmbvContext *c)
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size = avpkt->size;
@@ -601,7 +601,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac
         }
         FFSWAP(uint8_t *, c->cur, c->prev);
     }
-    *data_size = sizeof(AVFrame);
+    *got_frame = 1;
     *(AVFrame*)data = c->pic;
 
     /* always report that the buffer was completely consumed */