diff --git a/libavcodec/flvdec.c b/libavcodec/flvdec.c
index c70d79f483..881f63ed1a 100644
--- a/libavcodec/flvdec.c
+++ b/libavcodec/flvdec.c
@@ -40,7 +40,7 @@ int ff_flv_decode_picture_header(H263DecContext *const h)
         av_log(h->c.avctx, AV_LOG_ERROR, "Bad picture format\n");
         return AVERROR_INVALIDDATA;
     }
-    h->c.h263_flv       = format + 1;
+    h->c.h263_flv       = format;
     h->c.picture_number = get_bits(&h->gb, 8); /* picture timestamp */
     format            = get_bits(&h->gb, 3);
     switch (format) {
@@ -101,7 +101,7 @@ int ff_flv_decode_picture_header(H263DecContext *const h)
     if (h->c.avctx->debug & FF_DEBUG_PICT_INFO) {
         av_log(h->c.avctx, AV_LOG_DEBUG, "%c esc_type:%d, qp:%d num:%d\n",
                h->c.droppable ? 'D' : av_get_picture_type_char(h->c.pict_type),
-               h->c.h263_flv - 1, h->c.qscale, h->c.picture_number);
+               h->c.h263_flv, h->c.qscale, h->c.picture_number);
     }
 
     return 0;
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index 44c2bee6ac..670d250304 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -155,7 +155,6 @@ av_cold int ff_h263_decode_init(AVCodecContext *avctx)
 #endif
 #if CONFIG_FLV_DECODER
     case AV_CODEC_ID_FLV1:
-        s->h263_flv = 1;
         h->decode_header = ff_flv_decode_picture_header;
         break;
 #endif
diff --git a/libavcodec/ituh263dec.c b/libavcodec/ituh263dec.c
index 94cde850b5..0cd5d073ed 100644
--- a/libavcodec/ituh263dec.c
+++ b/libavcodec/ituh263dec.c
@@ -598,7 +598,7 @@ retry:
                 return -1;
             }
             /* escape */
-            if (CONFIG_FLV_DECODER && h->c.h263_flv > 1) {
+            if (CONFIG_FLV_DECODER && h->c.h263_flv) {
                 int is11 = SHOW_UBITS(re, &h->gb, 1);
                 SKIP_CACHE(re, &h->gb, 1);
                 run = SHOW_UBITS(re, &h->gb, 7) + 1;