diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c index 05bc280067..c7e3c68ccf 100644 --- a/libavcodec/4xm.c +++ b/libavcodec/4xm.c @@ -901,6 +901,8 @@ static int decode_frame(AVCodecContext *avctx, void *data, av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return -1; } + for (i=0; iheight; i++) + memset(f->last_picture.data[0] + i*f->last_picture.linesize[0], 0, 2*avctx->width); } p->pict_type = AV_PICTURE_TYPE_P; diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 1bd23ab675..1ca490c144 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -190,8 +190,8 @@ OBJS-$(CONFIG_ESCAPE130_DECODER) += escape130.o OBJS-$(CONFIG_EXR_DECODER) += exr.o OBJS-$(CONFIG_FFV1_DECODER) += ffv1dec.o ffv1.o OBJS-$(CONFIG_FFV1_ENCODER) += ffv1enc.o ffv1.o -OBJS-$(CONFIG_FFVHUFF_DECODER) += huffyuv.o -OBJS-$(CONFIG_FFVHUFF_ENCODER) += huffyuv.o +OBJS-$(CONFIG_FFVHUFF_DECODER) += huffyuv.o huffyuvdec.o +OBJS-$(CONFIG_FFVHUFF_ENCODER) += huffyuv.o huffyuvenc.o OBJS-$(CONFIG_FFWAVESYNTH_DECODER) += ffwavesynth.o OBJS-$(CONFIG_FLAC_DECODER) += flacdec.o flacdata.o flac.o flacdsp.o OBJS-$(CONFIG_FLAC_ENCODER) += flacenc.o flacdata.o flac.o flacdsp.o vorbis_data.o @@ -227,8 +227,8 @@ OBJS-$(CONFIG_H264_DXVA2_HWACCEL) += dxva2_h264.o OBJS-$(CONFIG_H264_VAAPI_HWACCEL) += vaapi_h264.o OBJS-$(CONFIG_H264_VDA_HWACCEL) += vda_h264.o OBJS-$(CONFIG_H264_VDA_DECODER) += vda_h264_dec.o -OBJS-$(CONFIG_HUFFYUV_DECODER) += huffyuv.o -OBJS-$(CONFIG_HUFFYUV_ENCODER) += huffyuv.o +OBJS-$(CONFIG_HUFFYUV_DECODER) += huffyuv.o huffyuvdec.o +OBJS-$(CONFIG_HUFFYUV_ENCODER) += huffyuv.o huffyuvenc.o OBJS-$(CONFIG_IAC_DECODER) += imc.o OBJS-$(CONFIG_IDCIN_DECODER) += idcinvideo.o OBJS-$(CONFIG_IDF_DECODER) += bintext.o cga_data.o diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 9ee9af1311..4c7ac2458f 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -1193,7 +1193,7 @@ typedef struct AVFrame { int64_t pts; /** - * reordered pts from the last AVPacket that has been input into the decoder + * pts copied from the AVPacket that was decoded to produce this frame * - encoding: unused * - decoding: Read by user. */ diff --git a/libavcodec/huffyuv.c b/libavcodec/huffyuv.c index 73348884d4..f67a04a9c3 100644 --- a/libavcodec/huffyuv.c +++ b/libavcodec/huffyuv.c @@ -28,216 +28,15 @@ * huffyuv codec for libavcodec. */ +#include + +#include "libavutil/mem.h" + #include "avcodec.h" -#include "internal.h" -#include "get_bits.h" -#include "put_bits.h" #include "dsputil.h" -#include "thread.h" -#include "huffman.h" +#include "huffyuv.h" -#define VLC_BITS 11 - -#if HAVE_BIGENDIAN -#define B 3 -#define G 2 -#define R 1 -#define A 0 -#else -#define B 0 -#define G 1 -#define R 2 -#define A 3 -#endif - -typedef enum Predictor { - LEFT= 0, - PLANE, - MEDIAN, -} Predictor; - -typedef struct HYuvContext { - AVCodecContext *avctx; - Predictor predictor; - GetBitContext gb; - PutBitContext pb; - int interlaced; - int decorrelate; - int bitstream_bpp; - int version; - int yuy2; //use yuy2 instead of 422P - int bgr32; //use bgr32 instead of bgr24 - int width, height; - int flags; - int context; - int picture_number; - int last_slice_end; - uint8_t *temp[3]; - uint64_t stats[3][256]; - uint8_t len[3][256]; - uint32_t bits[3][256]; - uint32_t pix_bgr_map[1<dsp.diff_bytes(dst + 16, src + 16, src + 15, w - 16); - return src[w-1]; - } -} - -static inline void sub_left_prediction_bgr32(HYuvContext *s, uint8_t *dst, - const uint8_t *src, int w, - int *red, int *green, int *blue, int *alpha) -{ - int i; - int r,g,b,a; - r = *red; - g = *green; - b = *blue; - a = *alpha; - for (i = 0; i < FFMIN(w, 4); i++) { - const int rt = src[i * 4 + R]; - const int gt = src[i * 4 + G]; - const int bt = src[i * 4 + B]; - const int at = src[i * 4 + A]; - dst[i * 4 + R] = rt - r; - dst[i * 4 + G] = gt - g; - dst[i * 4 + B] = bt - b; - dst[i * 4 + A] = at - a; - r = rt; - g = gt; - b = bt; - a = at; - } - - s->dsp.diff_bytes(dst + 16, src + 16, src + 12, w * 4 - 16); - - *red = src[(w - 1) * 4 + R]; - *green = src[(w - 1) * 4 + G]; - *blue = src[(w - 1) * 4 + B]; - *alpha = src[(w - 1) * 4 + A]; -} - -static inline void sub_left_prediction_rgb24(HYuvContext *s, uint8_t *dst, const uint8_t *src, int w, int *red, int *green, int *blue){ - int i; - int r,g,b; - r = *red; - g = *green; - b = *blue; - for (i = 0; i < FFMIN(w,16); i++) { - const int rt = src[i*3 + 0]; - const int gt = src[i*3 + 1]; - const int bt = src[i*3 + 2]; - dst[i*3 + 0] = rt - r; - dst[i*3 + 1] = gt - g; - dst[i*3 + 2] = bt - b; - r = rt; - g = gt; - b = bt; - } - - s->dsp.diff_bytes(dst + 48, src + 48, src + 48 - 3, w*3 - 48); - - *red = src[(w - 1)*3 + 0]; - *green = src[(w - 1)*3 + 1]; - *blue = src[(w - 1)*3 + 2]; -} - -static int read_len_table(uint8_t *dst, GetBitContext *gb) -{ - int i, val, repeat; - - for (i = 0; i < 256;) { - repeat = get_bits(gb, 3); - val = get_bits(gb, 5); - if (repeat == 0) - repeat = get_bits(gb, 8); - if (i + repeat > 256 || get_bits_left(gb) < 0) { - av_log(NULL, AV_LOG_ERROR, "Error reading huffman table\n"); - return -1; - } - while (repeat--) - dst[i++] = val; - } - return 0; -} - -static int generate_bits_table(uint32_t *dst, const uint8_t *len_table) +int ff_huffyuv_generate_bits_table(uint32_t *dst, const uint8_t *len_table) { int len, index; uint32_t bits = 0; @@ -256,137 +55,7 @@ static int generate_bits_table(uint32_t *dst, const uint8_t *len_table) return 0; } -static void generate_joint_tables(HYuvContext *s) -{ - uint16_t symbols[1 << VLC_BITS]; - uint16_t bits[1 << VLC_BITS]; - uint8_t len[1 << VLC_BITS]; - if (s->bitstream_bpp < 24) { - int p, i, y, u; - for (p = 0; p < 3; p++) { - for (i = y = 0; y < 256; y++) { - int len0 = s->len[0][y]; - int limit = VLC_BITS - len0; - if(limit <= 0) - continue; - for (u = 0; u < 256; u++) { - int len1 = s->len[p][u]; - if (len1 > limit) - continue; - len[i] = len0 + len1; - bits[i] = (s->bits[0][y] << len1) + s->bits[p][u]; - symbols[i] = (y << 8) + u; - if(symbols[i] != 0xffff) // reserved to mean "invalid" - i++; - } - } - ff_free_vlc(&s->vlc[3 + p]); - ff_init_vlc_sparse(&s->vlc[3 + p], VLC_BITS, i, len, 1, 1, - bits, 2, 2, symbols, 2, 2, 0); - } - } else { - uint8_t (*map)[4] = (uint8_t(*)[4])s->pix_bgr_map; - int i, b, g, r, code; - int p0 = s->decorrelate; - int p1 = !s->decorrelate; - // restrict the range to +/-16 because that's pretty much guaranteed to - // cover all the combinations that fit in 11 bits total, and it doesn't - // matter if we miss a few rare codes. - for (i = 0, g = -16; g < 16; g++) { - int len0 = s->len[p0][g & 255]; - int limit0 = VLC_BITS - len0; - if (limit0 < 2) - continue; - for (b = -16; b < 16; b++) { - int len1 = s->len[p1][b & 255]; - int limit1 = limit0 - len1; - if (limit1 < 1) - continue; - code = (s->bits[p0][g & 255] << len1) + s->bits[p1][b & 255]; - for (r = -16; r < 16; r++) { - int len2 = s->len[2][r & 255]; - if (len2 > limit1) - continue; - len[i] = len0 + len1 + len2; - bits[i] = (code << len2) + s->bits[2][r & 255]; - if (s->decorrelate) { - map[i][G] = g; - map[i][B] = g + b; - map[i][R] = g + r; - } else { - map[i][B] = g; - map[i][G] = b; - map[i][R] = r; - } - i++; - } - } - } - ff_free_vlc(&s->vlc[3]); - init_vlc(&s->vlc[3], VLC_BITS, i, len, 1, 1, bits, 2, 2, 0); - } -} - -static int read_huffman_tables(HYuvContext *s, const uint8_t *src, int length) -{ - GetBitContext gb; - int i; - - init_get_bits(&gb, src, length * 8); - - for (i = 0; i < 3; i++) { - if (read_len_table(s->len[i], &gb) < 0) - return -1; - if (generate_bits_table(s->bits[i], s->len[i]) < 0) { - return -1; - } - ff_free_vlc(&s->vlc[i]); - init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, - s->bits[i], 4, 4, 0); - } - - generate_joint_tables(s); - - return (get_bits_count(&gb) + 7) / 8; -} - -static int read_old_huffman_tables(HYuvContext *s) -{ - GetBitContext gb; - int i; - - init_get_bits(&gb, classic_shift_luma, - classic_shift_luma_table_size * 8); - if (read_len_table(s->len[0], &gb) < 0) - return -1; - - init_get_bits(&gb, classic_shift_chroma, - classic_shift_chroma_table_size * 8); - if (read_len_table(s->len[1], &gb) < 0) - return -1; - - for(i=0; i<256; i++) s->bits[0][i] = classic_add_luma [i]; - for(i=0; i<256; i++) s->bits[1][i] = classic_add_chroma[i]; - - if (s->bitstream_bpp >= 24) { - memcpy(s->bits[1], s->bits[0], 256 * sizeof(uint32_t)); - memcpy(s->len[1] , s->len [0], 256 * sizeof(uint8_t)); - } - memcpy(s->bits[2], s->bits[1], 256 * sizeof(uint32_t)); - memcpy(s->len[2] , s->len [1], 256 * sizeof(uint8_t)); - - for (i = 0; i < 3; i++) { - ff_free_vlc(&s->vlc[i]); - init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, - s->bits[i], 4, 4, 0); - } - - generate_joint_tables(s); - - return 0; -} - -static av_cold int alloc_temp(HYuvContext *s) +av_cold int ff_huffyuv_alloc_temp(HYuvContext *s) { int i; @@ -401,11 +70,10 @@ static av_cold int alloc_temp(HYuvContext *s) if (!s->temp[0]) return AVERROR(ENOMEM); } - return 0; } -static av_cold int common_init(AVCodecContext *avctx) +av_cold void ff_huffyuv_common_init(AVCodecContext *avctx) { HYuvContext *s = avctx->priv_data; @@ -416,1177 +84,15 @@ static av_cold int common_init(AVCodecContext *avctx) s->width = avctx->width; s->height = avctx->height; - av_assert1(s->width > 0 && s->height > 0); - return 0; + av_assert1(s->width > 0 && s->height > 0); } -static av_cold int common_end(HYuvContext *s) +av_cold void ff_huffyuv_common_end(HYuvContext *s) { int i; for(i = 0; i < 3; i++) { av_freep(&s->temp[i]); } - return 0; } - -#if CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER -static av_cold int decode_init(AVCodecContext *avctx) -{ - HYuvContext *s = avctx->priv_data; - - common_init(avctx); - memset(s->vlc, 0, 3 * sizeof(VLC)); - - avctx->coded_frame = &s->picture; - avcodec_get_frame_defaults(&s->picture); - s->interlaced = s->height > 288; - - s->bgr32 = 1; - - if (avctx->extradata_size) { - if ((avctx->bits_per_coded_sample & 7) && - avctx->bits_per_coded_sample != 12) - s->version = 1; // do such files exist at all? - else - s->version = 2; - } else - s->version = 0; - - if (s->version == 2) { - int method, interlace; - - if (avctx->extradata_size < 4) - return -1; - - method = ((uint8_t*)avctx->extradata)[0]; - s->decorrelate = method & 64 ? 1 : 0; - s->predictor = method & 63; - s->bitstream_bpp = ((uint8_t*)avctx->extradata)[1]; - if (s->bitstream_bpp == 0) - s->bitstream_bpp = avctx->bits_per_coded_sample & ~7; - interlace = (((uint8_t*)avctx->extradata)[2] & 0x30) >> 4; - s->interlaced = (interlace == 1) ? 1 : (interlace == 2) ? 0 : s->interlaced; - s->context = ((uint8_t*)avctx->extradata)[2] & 0x40 ? 1 : 0; - - if ( read_huffman_tables(s, ((uint8_t*)avctx->extradata) + 4, - avctx->extradata_size - 4) < 0) - return AVERROR_INVALIDDATA; - }else{ - switch (avctx->bits_per_coded_sample & 7) { - case 1: - s->predictor = LEFT; - s->decorrelate = 0; - break; - case 2: - s->predictor = LEFT; - s->decorrelate = 1; - break; - case 3: - s->predictor = PLANE; - s->decorrelate = avctx->bits_per_coded_sample >= 24; - break; - case 4: - s->predictor = MEDIAN; - s->decorrelate = 0; - break; - default: - s->predictor = LEFT; //OLD - s->decorrelate = 0; - break; - } - s->bitstream_bpp = avctx->bits_per_coded_sample & ~7; - s->context = 0; - - if (read_old_huffman_tables(s) < 0) - return AVERROR_INVALIDDATA; - } - - switch (s->bitstream_bpp) { - case 12: - avctx->pix_fmt = AV_PIX_FMT_YUV420P; - break; - case 16: - if (s->yuy2) { - avctx->pix_fmt = AV_PIX_FMT_YUYV422; - } else { - avctx->pix_fmt = AV_PIX_FMT_YUV422P; - } - break; - case 24: - case 32: - if (s->bgr32) { - avctx->pix_fmt = AV_PIX_FMT_RGB32; - } else { - avctx->pix_fmt = AV_PIX_FMT_BGR24; - } - break; - default: - return AVERROR_INVALIDDATA; - } - - if ((avctx->pix_fmt == AV_PIX_FMT_YUV422P || avctx->pix_fmt == AV_PIX_FMT_YUV420P) && avctx->width & 1) { - av_log(avctx, AV_LOG_ERROR, "width must be even for this colorspace\n"); - return AVERROR_INVALIDDATA; - } - if (s->predictor == MEDIAN && avctx->pix_fmt == AV_PIX_FMT_YUV422P && avctx->width%4) { - av_log(avctx, AV_LOG_ERROR, "width must be a multiple of 4 this colorspace and predictor\n"); - return AVERROR_INVALIDDATA; - } - if (alloc_temp(s)) { - common_end(s); - return AVERROR(ENOMEM); - } - - return 0; -} - -static av_cold int decode_init_thread_copy(AVCodecContext *avctx) -{ - HYuvContext *s = avctx->priv_data; - int i; - - avctx->coded_frame= &s->picture; - if (alloc_temp(s)) { - common_end(s); - return AVERROR(ENOMEM); - } - - for (i = 0; i < 6; i++) - s->vlc[i].table = NULL; - - if (s->version == 2) { - if (read_huffman_tables(s, ((uint8_t*)avctx->extradata) + 4, - avctx->extradata_size) < 0) - return AVERROR_INVALIDDATA; - } else { - if (read_old_huffman_tables(s) < 0) - return AVERROR_INVALIDDATA; - } - - return 0; -} -#endif /* CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER */ - -#if CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER -static int store_table(HYuvContext *s, const uint8_t *len, uint8_t *buf) -{ - int i; - int index = 0; - - for (i = 0; i < 256;) { - int val = len[i]; - int repeat = 0; - - for (; i < 256 && len[i] == val && repeat < 255; i++) - repeat++; - - av_assert0(val < 32 && val >0 && repeat<256 && repeat>0); - if (repeat > 7) { - buf[index++] = val; - buf[index++] = repeat; - } else { - buf[index++] = val | (repeat << 5); - } - } - - return index; -} - -static av_cold int encode_init(AVCodecContext *avctx) -{ - HYuvContext *s = avctx->priv_data; - int i, j; - - common_init(avctx); - - avctx->extradata = av_mallocz(1024*30); // 256*3+4 == 772 - avctx->stats_out = av_mallocz(1024*30); // 21*256*3(%llu ) + 3(\n) + 1(0) = 16132 - if (!avctx->extradata || !avctx->stats_out) { - av_freep(&avctx->stats_out); - return AVERROR(ENOMEM); - } - s->version = 2; - - avctx->coded_frame = &s->picture; - - switch (avctx->pix_fmt) { - case AV_PIX_FMT_YUV420P: - case AV_PIX_FMT_YUV422P: - if (s->width & 1) { - av_log(avctx, AV_LOG_ERROR, "width must be even for this colorspace\n"); - return AVERROR(EINVAL); - } - s->bitstream_bpp = avctx->pix_fmt == AV_PIX_FMT_YUV420P ? 12 : 16; - break; - case AV_PIX_FMT_RGB32: - s->bitstream_bpp = 32; - break; - case AV_PIX_FMT_RGB24: - s->bitstream_bpp = 24; - break; - default: - av_log(avctx, AV_LOG_ERROR, "format not supported\n"); - return AVERROR(EINVAL); - } - avctx->bits_per_coded_sample = s->bitstream_bpp; - s->decorrelate = s->bitstream_bpp >= 24; - s->predictor = avctx->prediction_method; - s->interlaced = avctx->flags&CODEC_FLAG_INTERLACED_ME ? 1 : 0; - if (avctx->context_model == 1) { - s->context = avctx->context_model; - if (s->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)) { - av_log(avctx, AV_LOG_ERROR, - "context=1 is not compatible with " - "2 pass huffyuv encoding\n"); - return AVERROR(EINVAL); - } - }else s->context= 0; - - if (avctx->codec->id == AV_CODEC_ID_HUFFYUV) { - if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) { - av_log(avctx, AV_LOG_ERROR, - "Error: YV12 is not supported by huffyuv; use " - "vcodec=ffvhuff or format=422p\n"); - return AVERROR(EINVAL); - } - if (avctx->context_model) { - av_log(avctx, AV_LOG_ERROR, - "Error: per-frame huffman tables are not supported " - "by huffyuv; use vcodec=ffvhuff\n"); - return AVERROR(EINVAL); - } - if (s->interlaced != ( s->height > 288 )) - av_log(avctx, AV_LOG_INFO, - "using huffyuv 2.2.0 or newer interlacing flag\n"); - } - - if (s->bitstream_bpp >= 24 && s->predictor == MEDIAN) { - av_log(avctx, AV_LOG_ERROR, - "Error: RGB is incompatible with median predictor\n"); - return AVERROR(EINVAL); - } - - ((uint8_t*)avctx->extradata)[0] = s->predictor | (s->decorrelate << 6); - ((uint8_t*)avctx->extradata)[1] = s->bitstream_bpp; - ((uint8_t*)avctx->extradata)[2] = s->interlaced ? 0x10 : 0x20; - if (s->context) - ((uint8_t*)avctx->extradata)[2] |= 0x40; - ((uint8_t*)avctx->extradata)[3] = 0; - s->avctx->extradata_size = 4; - - if (avctx->stats_in) { - char *p = avctx->stats_in; - - for (i = 0; i < 3; i++) - for (j = 0; j < 256; j++) - s->stats[i][j] = 1; - - for (;;) { - for (i = 0; i < 3; i++) { - char *next; - - for (j = 0; j < 256; j++) { - s->stats[i][j] += strtol(p, &next, 0); - if (next == p) return -1; - p = next; - } - } - if (p[0] == 0 || p[1] == 0 || p[2] == 0) break; - } - } else { - for (i = 0; i < 3; i++) - for (j = 0; j < 256; j++) { - int d = FFMIN(j, 256 - j); - - s->stats[i][j] = 100000000 / (d + 1); - } - } - - for (i = 0; i < 3; i++) { - ff_huff_gen_len_table(s->len[i], s->stats[i]); - - if (generate_bits_table(s->bits[i], s->len[i]) < 0) { - return -1; - } - - s->avctx->extradata_size += - store_table(s, s->len[i], &((uint8_t*)s->avctx->extradata)[s->avctx->extradata_size]); - } - - if (s->context) { - for (i = 0; i < 3; i++) { - int pels = s->width * s->height / (i ? 40 : 10); - for (j = 0; j < 256; j++) { - int d = FFMIN(j, 256 - j); - s->stats[i][j] = pels/(d + 1); - } - } - } else { - for (i = 0; i < 3; i++) - for (j = 0; j < 256; j++) - s->stats[i][j]= 0; - } - - if (alloc_temp(s)) { - common_end(s); - return AVERROR(ENOMEM); - } - - s->picture_number=0; - - return 0; -} -#endif /* CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER */ - -/* TODO instead of restarting the read when the code isn't in the first level - * of the joint table, jump into the 2nd level of the individual table. */ -#define READ_2PIX(dst0, dst1, plane1){\ - uint16_t code = get_vlc2(&s->gb, s->vlc[3+plane1].table, VLC_BITS, 1);\ - if(code != 0xffff){\ - dst0 = code>>8;\ - dst1 = code;\ - }else{\ - dst0 = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);\ - dst1 = get_vlc2(&s->gb, s->vlc[plane1].table, VLC_BITS, 3);\ - }\ -} - -static void decode_422_bitstream(HYuvContext *s, int count) -{ - int i; - - count /= 2; - - if (count >= (get_bits_left(&s->gb)) / (31 * 4)) { - for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) { - READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1); - READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); - } - } else { - for (i = 0; i < count; i++) { - READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1); - READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); - } - } -} - -static void decode_gray_bitstream(HYuvContext *s, int count) -{ - int i; - - count/=2; - - if (count >= (get_bits_left(&s->gb)) / (31 * 2)) { - for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) { - READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0); - } - } else { - for(i=0; itemp[0][2 * i], s->temp[0][2 * i + 1], 0); - } - } -} - -#if CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER -static int encode_422_bitstream(HYuvContext *s, int offset, int count) -{ - int i; - const uint8_t *y = s->temp[0] + offset; - const uint8_t *u = s->temp[1] + offset / 2; - const uint8_t *v = s->temp[2] + offset / 2; - - if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 2 * 4 * count) { - av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); - return -1; - } - -#define LOAD4\ - int y0 = y[2 * i];\ - int y1 = y[2 * i + 1];\ - int u0 = u[i];\ - int v0 = v[i]; - - count /= 2; - - if (s->flags & CODEC_FLAG_PASS1) { - for(i = 0; i < count; i++) { - LOAD4; - s->stats[0][y0]++; - s->stats[1][u0]++; - s->stats[0][y1]++; - s->stats[2][v0]++; - } - } - if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT) - return 0; - if (s->context) { - for (i = 0; i < count; i++) { - LOAD4; - s->stats[0][y0]++; - put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]); - s->stats[1][u0]++; - put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]); - s->stats[0][y1]++; - put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]); - s->stats[2][v0]++; - put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]); - } - } else { - for(i = 0; i < count; i++) { - LOAD4; - put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]); - put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]); - put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]); - put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]); - } - } - return 0; -} - -static int encode_gray_bitstream(HYuvContext *s, int count) -{ - int i; - - if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 4 * count) { - av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); - return -1; - } - -#define LOAD2\ - int y0 = s->temp[0][2 * i];\ - int y1 = s->temp[0][2 * i + 1]; -#define STAT2\ - s->stats[0][y0]++;\ - s->stats[0][y1]++; -#define WRITE2\ - put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);\ - put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]); - - count /= 2; - - if (s->flags & CODEC_FLAG_PASS1) { - for (i = 0; i < count; i++) { - LOAD2; - STAT2; - } - } - if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT) - return 0; - - if (s->context) { - for (i = 0; i < count; i++) { - LOAD2; - STAT2; - WRITE2; - } - } else { - for (i = 0; i < count; i++) { - LOAD2; - WRITE2; - } - } - return 0; -} -#endif /* CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER */ - -static av_always_inline void decode_bgr_1(HYuvContext *s, int count, - int decorrelate, int alpha) -{ - int i; - for (i = 0; i < count; i++) { - int code = get_vlc2(&s->gb, s->vlc[3].table, VLC_BITS, 1); - if (code != -1) { - *(uint32_t*)&s->temp[0][4 * i] = s->pix_bgr_map[code]; - } else if(decorrelate) { - s->temp[0][4 * i + G] = get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3); - s->temp[0][4 * i + B] = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3) + - s->temp[0][4 * i + G]; - s->temp[0][4 * i + R] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3) + - s->temp[0][4 * i + G]; - } else { - s->temp[0][4 * i + B] = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3); - s->temp[0][4 * i + G] = get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3); - s->temp[0][4 * i + R] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3); - } - if (alpha) - s->temp[0][4 * i + A] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3); - } -} - -static void decode_bgr_bitstream(HYuvContext *s, int count) -{ - if (s->decorrelate) { - if (s->bitstream_bpp==24) - decode_bgr_1(s, count, 1, 0); - else - decode_bgr_1(s, count, 1, 1); - } else { - if (s->bitstream_bpp==24) - decode_bgr_1(s, count, 0, 0); - else - decode_bgr_1(s, count, 0, 1); - } -} - -static inline int encode_bgra_bitstream(HYuvContext *s, int count, int planes) -{ - int i; - - if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < 4*planes*count) { - av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); - return -1; - } - -#define LOAD3\ - int g = s->temp[0][planes==3 ? 3*i + 1 : 4*i + G];\ - int b = (s->temp[0][planes==3 ? 3*i + 2 : 4*i + B] - g) & 0xff;\ - int r = (s->temp[0][planes==3 ? 3*i + 0 : 4*i + R] - g) & 0xff;\ - int a = s->temp[0][planes*i + A]; -#define STAT3\ - s->stats[0][b]++;\ - s->stats[1][g]++;\ - s->stats[2][r]++;\ - if(planes==4) s->stats[2][a]++; -#define WRITE3\ - put_bits(&s->pb, s->len[1][g], s->bits[1][g]);\ - put_bits(&s->pb, s->len[0][b], s->bits[0][b]);\ - put_bits(&s->pb, s->len[2][r], s->bits[2][r]);\ - if(planes==4) put_bits(&s->pb, s->len[2][a], s->bits[2][a]); - - if ((s->flags & CODEC_FLAG_PASS1) && - (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) { - for (i = 0; i < count; i++) { - LOAD3; - STAT3; - } - } else if (s->context || (s->flags & CODEC_FLAG_PASS1)) { - for (i = 0; i < count; i++) { - LOAD3; - STAT3; - WRITE3; - } - } else { - for (i = 0; i < count; i++) { - LOAD3; - WRITE3; - } - } - return 0; -} - -#if CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER -static void draw_slice(HYuvContext *s, int y) -{ - int h, cy, i; - int offset[AV_NUM_DATA_POINTERS]; - - if (s->avctx->draw_horiz_band==NULL) - return; - - h = y - s->last_slice_end; - y -= h; - - if (s->bitstream_bpp == 12) { - cy = y>>1; - } else { - cy = y; - } - - offset[0] = s->picture.linesize[0]*y; - offset[1] = s->picture.linesize[1]*cy; - offset[2] = s->picture.linesize[2]*cy; - for (i = 3; i < AV_NUM_DATA_POINTERS; i++) - offset[i] = 0; - emms_c(); - - s->avctx->draw_horiz_band(s->avctx, &s->picture, offset, y, 3, h); - - s->last_slice_end = y + h; -} - -static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, - AVPacket *avpkt) -{ - const uint8_t *buf = avpkt->data; - int buf_size = avpkt->size; - HYuvContext *s = avctx->priv_data; - const int width = s->width; - const int width2 = s->width>>1; - const int height = s->height; - int fake_ystride, fake_ustride, fake_vstride; - AVFrame * const p = &s->picture; - int table_size = 0, ret; - - AVFrame *picture = data; - - av_fast_padded_malloc(&s->bitstream_buffer, - &s->bitstream_buffer_size, - buf_size); - if (!s->bitstream_buffer) - return AVERROR(ENOMEM); - - s->dsp.bswap_buf((uint32_t*)s->bitstream_buffer, - (const uint32_t*)buf, buf_size / 4); - - if (p->data[0]) - ff_thread_release_buffer(avctx, p); - - p->reference = 0; - if ((ret = ff_thread_get_buffer(avctx, p)) < 0) { - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return ret; - } - - if (s->context) { - table_size = read_huffman_tables(s, s->bitstream_buffer, buf_size); - if (table_size < 0) - return AVERROR_INVALIDDATA; - } - - if ((unsigned)(buf_size-table_size) >= INT_MAX / 8) - return AVERROR_INVALIDDATA; - - init_get_bits(&s->gb, s->bitstream_buffer+table_size, - (buf_size-table_size) * 8); - - fake_ystride = s->interlaced ? p->linesize[0] * 2 : p->linesize[0]; - fake_ustride = s->interlaced ? p->linesize[1] * 2 : p->linesize[1]; - fake_vstride = s->interlaced ? p->linesize[2] * 2 : p->linesize[2]; - - s->last_slice_end = 0; - - if (s->bitstream_bpp < 24) { - int y, cy; - int lefty, leftu, leftv; - int lefttopy, lefttopu, lefttopv; - - if (s->yuy2) { - p->data[0][3] = get_bits(&s->gb, 8); - p->data[0][2] = get_bits(&s->gb, 8); - p->data[0][1] = get_bits(&s->gb, 8); - p->data[0][0] = get_bits(&s->gb, 8); - - av_log(avctx, AV_LOG_ERROR, - "YUY2 output is not implemented yet\n"); - return AVERROR_PATCHWELCOME; - } else { - - leftv = p->data[2][0] = get_bits(&s->gb, 8); - lefty = p->data[0][1] = get_bits(&s->gb, 8); - leftu = p->data[1][0] = get_bits(&s->gb, 8); - p->data[0][0] = get_bits(&s->gb, 8); - - switch (s->predictor) { - case LEFT: - case PLANE: - decode_422_bitstream(s, width-2); - lefty = s->dsp.add_hfyu_left_prediction(p->data[0] + 2, s->temp[0], width-2, lefty); - if (!(s->flags&CODEC_FLAG_GRAY)) { - leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + 1, s->temp[1], width2 - 1, leftu); - leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + 1, s->temp[2], width2 - 1, leftv); - } - - for (cy = y = 1; y < s->height; y++, cy++) { - uint8_t *ydst, *udst, *vdst; - - if (s->bitstream_bpp == 12) { - decode_gray_bitstream(s, width); - - ydst = p->data[0] + p->linesize[0] * y; - - lefty = s->dsp.add_hfyu_left_prediction(ydst, s->temp[0], width, lefty); - if (s->predictor == PLANE) { - if (y > s->interlaced) - s->dsp.add_bytes(ydst, ydst - fake_ystride, width); - } - y++; - if (y >= s->height) break; - } - - draw_slice(s, y); - - ydst = p->data[0] + p->linesize[0]*y; - udst = p->data[1] + p->linesize[1]*cy; - vdst = p->data[2] + p->linesize[2]*cy; - - decode_422_bitstream(s, width); - lefty = s->dsp.add_hfyu_left_prediction(ydst, s->temp[0], width, lefty); - if (!(s->flags & CODEC_FLAG_GRAY)) { - leftu= s->dsp.add_hfyu_left_prediction(udst, s->temp[1], width2, leftu); - leftv= s->dsp.add_hfyu_left_prediction(vdst, s->temp[2], width2, leftv); - } - if (s->predictor == PLANE) { - if (cy > s->interlaced) { - s->dsp.add_bytes(ydst, ydst - fake_ystride, width); - if (!(s->flags & CODEC_FLAG_GRAY)) { - s->dsp.add_bytes(udst, udst - fake_ustride, width2); - s->dsp.add_bytes(vdst, vdst - fake_vstride, width2); - } - } - } - } - draw_slice(s, height); - - break; - case MEDIAN: - /* first line except first 2 pixels is left predicted */ - decode_422_bitstream(s, width - 2); - lefty= s->dsp.add_hfyu_left_prediction(p->data[0] + 2, s->temp[0], width - 2, lefty); - if (!(s->flags & CODEC_FLAG_GRAY)) { - leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + 1, s->temp[1], width2 - 1, leftu); - leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + 1, s->temp[2], width2 - 1, leftv); - } - - cy = y = 1; - - /* second line is left predicted for interlaced case */ - if (s->interlaced) { - decode_422_bitstream(s, width); - lefty = s->dsp.add_hfyu_left_prediction(p->data[0] + p->linesize[0], s->temp[0], width, lefty); - if (!(s->flags & CODEC_FLAG_GRAY)) { - leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + p->linesize[2], s->temp[1], width2, leftu); - leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + p->linesize[1], s->temp[2], width2, leftv); - } - y++; cy++; - } - - /* next 4 pixels are left predicted too */ - decode_422_bitstream(s, 4); - lefty = s->dsp.add_hfyu_left_prediction(p->data[0] + fake_ystride, s->temp[0], 4, lefty); - if (!(s->flags&CODEC_FLAG_GRAY)) { - leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + fake_ustride, s->temp[1], 2, leftu); - leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + fake_vstride, s->temp[2], 2, leftv); - } - - /* next line except the first 4 pixels is median predicted */ - lefttopy = p->data[0][3]; - decode_422_bitstream(s, width - 4); - s->dsp.add_hfyu_median_prediction(p->data[0] + fake_ystride+4, p->data[0]+4, s->temp[0], width-4, &lefty, &lefttopy); - if (!(s->flags&CODEC_FLAG_GRAY)) { - lefttopu = p->data[1][1]; - lefttopv = p->data[2][1]; - s->dsp.add_hfyu_median_prediction(p->data[1] + fake_ustride+2, p->data[1] + 2, s->temp[1], width2 - 2, &leftu, &lefttopu); - s->dsp.add_hfyu_median_prediction(p->data[2] + fake_vstride+2, p->data[2] + 2, s->temp[2], width2 - 2, &leftv, &lefttopv); - } - y++; cy++; - - for (; ybitstream_bpp == 12) { - while (2 * cy > y) { - decode_gray_bitstream(s, width); - ydst = p->data[0] + p->linesize[0] * y; - s->dsp.add_hfyu_median_prediction(ydst, ydst - fake_ystride, s->temp[0], width, &lefty, &lefttopy); - y++; - } - if (y >= height) break; - } - draw_slice(s, y); - - decode_422_bitstream(s, width); - - ydst = p->data[0] + p->linesize[0] * y; - udst = p->data[1] + p->linesize[1] * cy; - vdst = p->data[2] + p->linesize[2] * cy; - - s->dsp.add_hfyu_median_prediction(ydst, ydst - fake_ystride, s->temp[0], width, &lefty, &lefttopy); - if (!(s->flags & CODEC_FLAG_GRAY)) { - s->dsp.add_hfyu_median_prediction(udst, udst - fake_ustride, s->temp[1], width2, &leftu, &lefttopu); - s->dsp.add_hfyu_median_prediction(vdst, vdst - fake_vstride, s->temp[2], width2, &leftv, &lefttopv); - } - } - - draw_slice(s, height); - break; - } - } - } else { - int y; - int leftr, leftg, leftb, lefta; - const int last_line = (height - 1) * p->linesize[0]; - - if (s->bitstream_bpp == 32) { - lefta = p->data[0][last_line+A] = get_bits(&s->gb, 8); - leftr = p->data[0][last_line+R] = get_bits(&s->gb, 8); - leftg = p->data[0][last_line+G] = get_bits(&s->gb, 8); - leftb = p->data[0][last_line+B] = get_bits(&s->gb, 8); - } else { - leftr = p->data[0][last_line+R] = get_bits(&s->gb, 8); - leftg = p->data[0][last_line+G] = get_bits(&s->gb, 8); - leftb = p->data[0][last_line+B] = get_bits(&s->gb, 8); - lefta = p->data[0][last_line+A] = 255; - skip_bits(&s->gb, 8); - } - - if (s->bgr32) { - switch (s->predictor) { - case LEFT: - case PLANE: - decode_bgr_bitstream(s, width - 1); - s->dsp.add_hfyu_left_prediction_bgr32(p->data[0] + last_line+4, s->temp[0], width - 1, &leftr, &leftg, &leftb, &lefta); - - for (y = s->height - 2; y >= 0; y--) { //Yes it is stored upside down. - decode_bgr_bitstream(s, width); - - s->dsp.add_hfyu_left_prediction_bgr32(p->data[0] + p->linesize[0]*y, s->temp[0], width, &leftr, &leftg, &leftb, &lefta); - if (s->predictor == PLANE) { - if (s->bitstream_bpp != 32) lefta = 0; - if ((y & s->interlaced) == 0 && - y < s->height - 1 - s->interlaced) { - s->dsp.add_bytes(p->data[0] + p->linesize[0] * y, - p->data[0] + p->linesize[0] * y + - fake_ystride, fake_ystride); - } - } - } - // just 1 large slice as this is not possible in reverse order - draw_slice(s, height); - break; - default: - av_log(avctx, AV_LOG_ERROR, - "prediction type not supported!\n"); - } - }else{ - av_log(avctx, AV_LOG_ERROR, - "BGR24 output is not implemented yet\n"); - return AVERROR_PATCHWELCOME; - } - } - emms_c(); - - *picture = *p; - *got_frame = 1; - - return (get_bits_count(&s->gb) + 31) / 32 * 4 + table_size; -} -#endif /* CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER */ - -#if CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER -static av_cold int decode_end(AVCodecContext *avctx) -{ - HYuvContext *s = avctx->priv_data; - int i; - - if (s->picture.data[0]) - avctx->release_buffer(avctx, &s->picture); - - common_end(s); - av_freep(&s->bitstream_buffer); - - for (i = 0; i < 6; i++) { - ff_free_vlc(&s->vlc[i]); - } - - return 0; -} -#endif /* CONFIG_HUFFYUV_DECODER || CONFIG_FFVHUFF_DECODER */ - -#if CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER -static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, - const AVFrame *pict, int *got_packet) -{ - HYuvContext *s = avctx->priv_data; - const int width = s->width; - const int width2 = s->width>>1; - const int height = s->height; - const int fake_ystride = s->interlaced ? pict->linesize[0]*2 : pict->linesize[0]; - const int fake_ustride = s->interlaced ? pict->linesize[1]*2 : pict->linesize[1]; - const int fake_vstride = s->interlaced ? pict->linesize[2]*2 : pict->linesize[2]; - AVFrame * const p = &s->picture; - int i, j, size = 0, ret; - - if ((ret = ff_alloc_packet2(avctx, pkt, width * height * 3 * 4 + FF_MIN_BUFFER_SIZE)) < 0) - return ret; - - *p = *pict; - p->pict_type = AV_PICTURE_TYPE_I; - p->key_frame = 1; - - if (s->context) { - for (i = 0; i < 3; i++) { - ff_huff_gen_len_table(s->len[i], s->stats[i]); - if (generate_bits_table(s->bits[i], s->len[i]) < 0) - return -1; - size += store_table(s, s->len[i], &pkt->data[size]); - } - - for (i = 0; i < 3; i++) - for (j = 0; j < 256; j++) - s->stats[i][j] >>= 1; - } - - init_put_bits(&s->pb, pkt->data + size, pkt->size - size); - - if (avctx->pix_fmt == AV_PIX_FMT_YUV422P || - avctx->pix_fmt == AV_PIX_FMT_YUV420P) { - int lefty, leftu, leftv, y, cy; - - put_bits(&s->pb, 8, leftv = p->data[2][0]); - put_bits(&s->pb, 8, lefty = p->data[0][1]); - put_bits(&s->pb, 8, leftu = p->data[1][0]); - put_bits(&s->pb, 8, p->data[0][0]); - - lefty = sub_left_prediction(s, s->temp[0], p->data[0], width , 0); - leftu = sub_left_prediction(s, s->temp[1], p->data[1], width2, 0); - leftv = sub_left_prediction(s, s->temp[2], p->data[2], width2, 0); - - encode_422_bitstream(s, 2, width-2); - - if (s->predictor==MEDIAN) { - int lefttopy, lefttopu, lefttopv; - cy = y = 1; - if (s->interlaced) { - lefty = sub_left_prediction(s, s->temp[0], p->data[0] + p->linesize[0], width , lefty); - leftu = sub_left_prediction(s, s->temp[1], p->data[1] + p->linesize[1], width2, leftu); - leftv = sub_left_prediction(s, s->temp[2], p->data[2] + p->linesize[2], width2, leftv); - - encode_422_bitstream(s, 0, width); - y++; cy++; - } - - lefty = sub_left_prediction(s, s->temp[0], p->data[0] + fake_ystride, 4, lefty); - leftu = sub_left_prediction(s, s->temp[1], p->data[1] + fake_ustride, 2, leftu); - leftv = sub_left_prediction(s, s->temp[2], p->data[2] + fake_vstride, 2, leftv); - - encode_422_bitstream(s, 0, 4); - - lefttopy = p->data[0][3]; - lefttopu = p->data[1][1]; - lefttopv = p->data[2][1]; - s->dsp.sub_hfyu_median_prediction(s->temp[0], p->data[0]+4, p->data[0] + fake_ystride + 4, width - 4 , &lefty, &lefttopy); - s->dsp.sub_hfyu_median_prediction(s->temp[1], p->data[1]+2, p->data[1] + fake_ustride + 2, width2 - 2, &leftu, &lefttopu); - s->dsp.sub_hfyu_median_prediction(s->temp[2], p->data[2]+2, p->data[2] + fake_vstride + 2, width2 - 2, &leftv, &lefttopv); - encode_422_bitstream(s, 0, width - 4); - y++; cy++; - - for (; y < height; y++,cy++) { - uint8_t *ydst, *udst, *vdst; - - if (s->bitstream_bpp == 12) { - while (2 * cy > y) { - ydst = p->data[0] + p->linesize[0] * y; - s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy); - encode_gray_bitstream(s, width); - y++; - } - if (y >= height) break; - } - ydst = p->data[0] + p->linesize[0] * y; - udst = p->data[1] + p->linesize[1] * cy; - vdst = p->data[2] + p->linesize[2] * cy; - - s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy); - s->dsp.sub_hfyu_median_prediction(s->temp[1], udst - fake_ustride, udst, width2, &leftu, &lefttopu); - s->dsp.sub_hfyu_median_prediction(s->temp[2], vdst - fake_vstride, vdst, width2, &leftv, &lefttopv); - - encode_422_bitstream(s, 0, width); - } - } else { - for (cy = y = 1; y < height; y++, cy++) { - uint8_t *ydst, *udst, *vdst; - - /* encode a luma only line & y++ */ - if (s->bitstream_bpp == 12) { - ydst = p->data[0] + p->linesize[0] * y; - - if (s->predictor == PLANE && s->interlaced < y) { - s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width); - - lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty); - } else { - lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty); - } - encode_gray_bitstream(s, width); - y++; - if (y >= height) break; - } - - ydst = p->data[0] + p->linesize[0] * y; - udst = p->data[1] + p->linesize[1] * cy; - vdst = p->data[2] + p->linesize[2] * cy; - - if (s->predictor == PLANE && s->interlaced < cy) { - s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width); - s->dsp.diff_bytes(s->temp[2], udst, udst - fake_ustride, width2); - s->dsp.diff_bytes(s->temp[2] + width2, vdst, vdst - fake_vstride, width2); - - lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty); - leftu = sub_left_prediction(s, s->temp[1], s->temp[2], width2, leftu); - leftv = sub_left_prediction(s, s->temp[2], s->temp[2] + width2, width2, leftv); - } else { - lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty); - leftu = sub_left_prediction(s, s->temp[1], udst, width2, leftu); - leftv = sub_left_prediction(s, s->temp[2], vdst, width2, leftv); - } - - encode_422_bitstream(s, 0, width); - } - } - } else if(avctx->pix_fmt == AV_PIX_FMT_RGB32) { - uint8_t *data = p->data[0] + (height - 1) * p->linesize[0]; - const int stride = -p->linesize[0]; - const int fake_stride = -fake_ystride; - int y; - int leftr, leftg, leftb, lefta; - - put_bits(&s->pb, 8, lefta = data[A]); - put_bits(&s->pb, 8, leftr = data[R]); - put_bits(&s->pb, 8, leftg = data[G]); - put_bits(&s->pb, 8, leftb = data[B]); - - sub_left_prediction_bgr32(s, s->temp[0], data + 4, width - 1, &leftr, &leftg, &leftb, &lefta); - encode_bgra_bitstream(s, width - 1, 4); - - for (y = 1; y < s->height; y++) { - uint8_t *dst = data + y*stride; - if (s->predictor == PLANE && s->interlaced < y) { - s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width * 4); - sub_left_prediction_bgr32(s, s->temp[0], s->temp[1], width, &leftr, &leftg, &leftb, &lefta); - } else { - sub_left_prediction_bgr32(s, s->temp[0], dst, width, &leftr, &leftg, &leftb, &lefta); - } - encode_bgra_bitstream(s, width, 4); - } - }else if(avctx->pix_fmt == AV_PIX_FMT_RGB24){ - uint8_t *data = p->data[0] + (height-1)*p->linesize[0]; - const int stride = -p->linesize[0]; - const int fake_stride = -fake_ystride; - int y; - int leftr, leftg, leftb; - - put_bits(&s->pb, 8, leftr= data[0]); - put_bits(&s->pb, 8, leftg= data[1]); - put_bits(&s->pb, 8, leftb= data[2]); - put_bits(&s->pb, 8, 0); - - sub_left_prediction_rgb24(s, s->temp[0], data+3, width-1, &leftr, &leftg, &leftb); - encode_bgra_bitstream(s, width-1, 3); - - for(y=1; yheight; y++){ - uint8_t *dst = data + y*stride; - if(s->predictor == PLANE && s->interlaced < y){ - s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width*3); - sub_left_prediction_rgb24(s, s->temp[0], s->temp[1], width, &leftr, &leftg, &leftb); - }else{ - sub_left_prediction_rgb24(s, s->temp[0], dst, width, &leftr, &leftg, &leftb); - } - encode_bgra_bitstream(s, width, 3); - } - } else { - av_log(avctx, AV_LOG_ERROR, "Format not supported!\n"); - } - emms_c(); - - size += (put_bits_count(&s->pb) + 31) / 8; - put_bits(&s->pb, 16, 0); - put_bits(&s->pb, 15, 0); - size /= 4; - - if ((s->flags&CODEC_FLAG_PASS1) && (s->picture_number & 31) == 0) { - int j; - char *p = avctx->stats_out; - char *end = p + 1024*30; - for (i = 0; i < 3; i++) { - for (j = 0; j < 256; j++) { - snprintf(p, end-p, "%"PRIu64" ", s->stats[i][j]); - p += strlen(p); - s->stats[i][j]= 0; - } - snprintf(p, end-p, "\n"); - p++; - } - } else - avctx->stats_out[0] = '\0'; - if (!(s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) { - flush_put_bits(&s->pb); - s->dsp.bswap_buf((uint32_t*)pkt->data, (uint32_t*)pkt->data, size); - } - - s->picture_number++; - - pkt->size = size * 4; - pkt->flags |= AV_PKT_FLAG_KEY; - *got_packet = 1; - - return 0; -} - -static av_cold int encode_end(AVCodecContext *avctx) -{ - HYuvContext *s = avctx->priv_data; - - common_end(s); - - av_freep(&avctx->extradata); - av_freep(&avctx->stats_out); - - return 0; -} -#endif /* CONFIG_HUFFYUV_ENCODER || CONFIG_FFVHUFF_ENCODER */ - -#if CONFIG_HUFFYUV_DECODER -AVCodec ff_huffyuv_decoder = { - .name = "huffyuv", - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_HUFFYUV, - .priv_data_size = sizeof(HYuvContext), - .init = decode_init, - .close = decode_end, - .decode = decode_frame, - .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | - CODEC_CAP_FRAME_THREADS, - .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy), - .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"), -}; -#endif - -#if CONFIG_FFVHUFF_DECODER -AVCodec ff_ffvhuff_decoder = { - .name = "ffvhuff", - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_FFVHUFF, - .priv_data_size = sizeof(HYuvContext), - .init = decode_init, - .close = decode_end, - .decode = decode_frame, - .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | - CODEC_CAP_FRAME_THREADS, - .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy), - .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"), -}; -#endif - -#if CONFIG_HUFFYUV_ENCODER -AVCodec ff_huffyuv_encoder = { - .name = "huffyuv", - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_HUFFYUV, - .priv_data_size = sizeof(HYuvContext), - .init = encode_init, - .encode2 = encode_frame, - .close = encode_end, - .pix_fmts = (const enum AVPixelFormat[]){ - AV_PIX_FMT_YUV422P, AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE - }, - .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"), -}; -#endif - -#if CONFIG_FFVHUFF_ENCODER -AVCodec ff_ffvhuff_encoder = { - .name = "ffvhuff", - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_FFVHUFF, - .priv_data_size = sizeof(HYuvContext), - .init = encode_init, - .encode2 = encode_frame, - .close = encode_end, - .pix_fmts = (const enum AVPixelFormat[]){ - AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE - }, - .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"), -}; -#endif diff --git a/libavcodec/huffyuv.h b/libavcodec/huffyuv.h new file mode 100644 index 0000000000..e34b562b76 --- /dev/null +++ b/libavcodec/huffyuv.h @@ -0,0 +1,92 @@ +/* + * Copyright (c) 2002-2003 Michael Niedermayer + * + * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of + * the algorithm used + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * huffyuv codec for libavcodec. + */ + +#ifndef AVCODEC_HUFFYUV_H +#define AVCODEC_HUFFYUV_H + +#include + +#include "avcodec.h" +#include "dsputil.h" +#include "get_bits.h" +#include "put_bits.h" + +#define VLC_BITS 11 + +#if HAVE_BIGENDIAN +#define B 3 +#define G 2 +#define R 1 +#define A 0 +#else +#define B 0 +#define G 1 +#define R 2 +#define A 3 +#endif + +typedef enum Predictor { + LEFT = 0, + PLANE, + MEDIAN, +} Predictor; + +typedef struct HYuvContext { + AVCodecContext *avctx; + Predictor predictor; + GetBitContext gb; + PutBitContext pb; + int interlaced; + int decorrelate; + int bitstream_bpp; + int version; + int yuy2; //use yuy2 instead of 422P + int bgr32; //use bgr32 instead of bgr24 + int width, height; + int flags; + int context; + int picture_number; + int last_slice_end; + uint8_t *temp[3]; + uint64_t stats[3][256]; + uint8_t len[3][256]; + uint32_t bits[3][256]; + uint32_t pix_bgr_map[1< + * + * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of + * the algorithm used + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * huffyuv decoder + */ + +#include "avcodec.h" +#include "dsputil.h" +#include "get_bits.h" +#include "huffyuv.h" +#include "thread.h" + +#define classic_shift_luma_table_size 42 +static const unsigned char classic_shift_luma[classic_shift_luma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = { + 34,36,35,69,135,232,9,16,10,24,11,23,12,16,13,10,14,8,15,8, + 16,8,17,20,16,10,207,206,205,236,11,8,10,21,9,23,8,8,199,70, + 69,68, 0, + 0,0,0,0,0,0,0,0, +}; + +#define classic_shift_chroma_table_size 59 +static const unsigned char classic_shift_chroma[classic_shift_chroma_table_size + FF_INPUT_BUFFER_PADDING_SIZE] = { + 66,36,37,38,39,40,41,75,76,77,110,239,144,81,82,83,84,85,118,183, + 56,57,88,89,56,89,154,57,58,57,26,141,57,56,58,57,58,57,184,119, + 214,245,116,83,82,49,80,79,78,77,44,75,41,40,39,38,37,36,34, 0, + 0,0,0,0,0,0,0,0, +}; + +static const unsigned char classic_add_luma[256] = { + 3, 9, 5, 12, 10, 35, 32, 29, 27, 50, 48, 45, 44, 41, 39, 37, + 73, 70, 68, 65, 64, 61, 58, 56, 53, 50, 49, 46, 44, 41, 38, 36, + 68, 65, 63, 61, 58, 55, 53, 51, 48, 46, 45, 43, 41, 39, 38, 36, + 35, 33, 32, 30, 29, 27, 26, 25, 48, 47, 46, 44, 43, 41, 40, 39, + 37, 36, 35, 34, 32, 31, 30, 28, 27, 26, 24, 23, 22, 20, 19, 37, + 35, 34, 33, 31, 30, 29, 27, 26, 24, 23, 21, 20, 18, 17, 15, 29, + 27, 26, 24, 22, 21, 19, 17, 16, 14, 26, 25, 23, 21, 19, 18, 16, + 15, 27, 25, 23, 21, 19, 17, 16, 14, 26, 25, 23, 21, 18, 17, 14, + 12, 17, 19, 13, 4, 9, 2, 11, 1, 7, 8, 0, 16, 3, 14, 6, + 12, 10, 5, 15, 18, 11, 10, 13, 15, 16, 19, 20, 22, 24, 27, 15, + 18, 20, 22, 24, 26, 14, 17, 20, 22, 24, 27, 15, 18, 20, 23, 25, + 28, 16, 19, 22, 25, 28, 32, 36, 21, 25, 29, 33, 38, 42, 45, 49, + 28, 31, 34, 37, 40, 42, 44, 47, 49, 50, 52, 54, 56, 57, 59, 60, + 62, 64, 66, 67, 69, 35, 37, 39, 40, 42, 43, 45, 47, 48, 51, 52, + 54, 55, 57, 59, 60, 62, 63, 66, 67, 69, 71, 72, 38, 40, 42, 43, + 46, 47, 49, 51, 26, 28, 30, 31, 33, 34, 18, 19, 11, 13, 7, 8, +}; + +static const unsigned char classic_add_chroma[256] = { + 3, 1, 2, 2, 2, 2, 3, 3, 7, 5, 7, 5, 8, 6, 11, 9, + 7, 13, 11, 10, 9, 8, 7, 5, 9, 7, 6, 4, 7, 5, 8, 7, + 11, 8, 13, 11, 19, 15, 22, 23, 20, 33, 32, 28, 27, 29, 51, 77, + 43, 45, 76, 81, 46, 82, 75, 55, 56,144, 58, 80, 60, 74,147, 63, + 143, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, + 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 27, 30, 21, 22, + 17, 14, 5, 6,100, 54, 47, 50, 51, 53,106,107,108,109,110,111, + 112,113,114,115, 4,117,118, 92, 94,121,122, 3,124,103, 2, 1, + 0,129,130,131,120,119,126,125,136,137,138,139,140,141,142,134, + 135,132,133,104, 64,101, 62, 57,102, 95, 93, 59, 61, 28, 97, 96, + 52, 49, 48, 29, 32, 25, 24, 46, 23, 98, 45, 44, 43, 20, 42, 41, + 19, 18, 99, 40, 15, 39, 38, 16, 13, 12, 11, 37, 10, 9, 8, 36, + 7,128,127,105,123,116, 35, 34, 33,145, 31, 79, 42,146, 78, 26, + 83, 48, 49, 50, 44, 47, 26, 31, 30, 18, 17, 19, 21, 24, 25, 13, + 14, 16, 17, 18, 20, 21, 12, 14, 15, 9, 10, 6, 9, 6, 5, 8, + 6, 12, 8, 10, 7, 9, 6, 4, 6, 2, 2, 3, 3, 3, 3, 2, +}; + +static int read_len_table(uint8_t *dst, GetBitContext *gb) +{ + int i, val, repeat; + + for (i = 0; i < 256;) { + repeat = get_bits(gb, 3); + val = get_bits(gb, 5); + if (repeat == 0) + repeat = get_bits(gb, 8); + if (i + repeat > 256 || get_bits_left(gb) < 0) { + av_log(NULL, AV_LOG_ERROR, "Error reading huffman table\n"); + return -1; + } + while (repeat--) + dst[i++] = val; + } + return 0; +} + +static void generate_joint_tables(HYuvContext *s) +{ + uint16_t symbols[1 << VLC_BITS]; + uint16_t bits[1 << VLC_BITS]; + uint8_t len[1 << VLC_BITS]; + if (s->bitstream_bpp < 24) { + int p, i, y, u; + for (p = 0; p < 3; p++) { + for (i = y = 0; y < 256; y++) { + int len0 = s->len[0][y]; + int limit = VLC_BITS - len0; + if(limit <= 0) + continue; + for (u = 0; u < 256; u++) { + int len1 = s->len[p][u]; + if (len1 > limit) + continue; + len[i] = len0 + len1; + bits[i] = (s->bits[0][y] << len1) + s->bits[p][u]; + symbols[i] = (y << 8) + u; + if(symbols[i] != 0xffff) // reserved to mean "invalid" + i++; + } + } + ff_free_vlc(&s->vlc[3 + p]); + ff_init_vlc_sparse(&s->vlc[3 + p], VLC_BITS, i, len, 1, 1, + bits, 2, 2, symbols, 2, 2, 0); + } + } else { + uint8_t (*map)[4] = (uint8_t(*)[4])s->pix_bgr_map; + int i, b, g, r, code; + int p0 = s->decorrelate; + int p1 = !s->decorrelate; + // restrict the range to +/-16 because that's pretty much guaranteed to + // cover all the combinations that fit in 11 bits total, and it doesn't + // matter if we miss a few rare codes. + for (i = 0, g = -16; g < 16; g++) { + int len0 = s->len[p0][g & 255]; + int limit0 = VLC_BITS - len0; + if (limit0 < 2) + continue; + for (b = -16; b < 16; b++) { + int len1 = s->len[p1][b & 255]; + int limit1 = limit0 - len1; + if (limit1 < 1) + continue; + code = (s->bits[p0][g & 255] << len1) + s->bits[p1][b & 255]; + for (r = -16; r < 16; r++) { + int len2 = s->len[2][r & 255]; + if (len2 > limit1) + continue; + len[i] = len0 + len1 + len2; + bits[i] = (code << len2) + s->bits[2][r & 255]; + if (s->decorrelate) { + map[i][G] = g; + map[i][B] = g + b; + map[i][R] = g + r; + } else { + map[i][B] = g; + map[i][G] = b; + map[i][R] = r; + } + i++; + } + } + } + ff_free_vlc(&s->vlc[3]); + init_vlc(&s->vlc[3], VLC_BITS, i, len, 1, 1, bits, 2, 2, 0); + } +} + +static int read_huffman_tables(HYuvContext *s, const uint8_t *src, int length) +{ + GetBitContext gb; + int i; + + init_get_bits(&gb, src, length * 8); + + for (i = 0; i < 3; i++) { + if (read_len_table(s->len[i], &gb) < 0) + return -1; + if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i]) < 0) { + return -1; + } + ff_free_vlc(&s->vlc[i]); + init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, + s->bits[i], 4, 4, 0); + } + + generate_joint_tables(s); + + return (get_bits_count(&gb) + 7) / 8; +} + +static int read_old_huffman_tables(HYuvContext *s) +{ + GetBitContext gb; + int i; + + init_get_bits(&gb, classic_shift_luma, + classic_shift_luma_table_size * 8); + if (read_len_table(s->len[0], &gb) < 0) + return -1; + + init_get_bits(&gb, classic_shift_chroma, + classic_shift_chroma_table_size * 8); + if (read_len_table(s->len[1], &gb) < 0) + return -1; + + for(i=0; i<256; i++) s->bits[0][i] = classic_add_luma [i]; + for(i=0; i<256; i++) s->bits[1][i] = classic_add_chroma[i]; + + if (s->bitstream_bpp >= 24) { + memcpy(s->bits[1], s->bits[0], 256 * sizeof(uint32_t)); + memcpy(s->len[1] , s->len [0], 256 * sizeof(uint8_t)); + } + memcpy(s->bits[2], s->bits[1], 256 * sizeof(uint32_t)); + memcpy(s->len[2] , s->len [1], 256 * sizeof(uint8_t)); + + for (i = 0; i < 3; i++) { + ff_free_vlc(&s->vlc[i]); + init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1, + s->bits[i], 4, 4, 0); + } + + generate_joint_tables(s); + + return 0; +} + +static av_cold int decode_init(AVCodecContext *avctx) +{ + HYuvContext *s = avctx->priv_data; + + ff_huffyuv_common_init(avctx); + memset(s->vlc, 0, 3 * sizeof(VLC)); + + avctx->coded_frame = &s->picture; + avcodec_get_frame_defaults(&s->picture); + s->interlaced = s->height > 288; + + s->bgr32 = 1; + + if (avctx->extradata_size) { + if ((avctx->bits_per_coded_sample & 7) && + avctx->bits_per_coded_sample != 12) + s->version = 1; // do such files exist at all? + else + s->version = 2; + } else + s->version = 0; + + if (s->version == 2) { + int method, interlace; + + if (avctx->extradata_size < 4) + return -1; + + method = ((uint8_t*)avctx->extradata)[0]; + s->decorrelate = method & 64 ? 1 : 0; + s->predictor = method & 63; + s->bitstream_bpp = ((uint8_t*)avctx->extradata)[1]; + if (s->bitstream_bpp == 0) + s->bitstream_bpp = avctx->bits_per_coded_sample & ~7; + interlace = (((uint8_t*)avctx->extradata)[2] & 0x30) >> 4; + s->interlaced = (interlace == 1) ? 1 : (interlace == 2) ? 0 : s->interlaced; + s->context = ((uint8_t*)avctx->extradata)[2] & 0x40 ? 1 : 0; + + if ( read_huffman_tables(s, ((uint8_t*)avctx->extradata) + 4, + avctx->extradata_size - 4) < 0) + return AVERROR_INVALIDDATA; + }else{ + switch (avctx->bits_per_coded_sample & 7) { + case 1: + s->predictor = LEFT; + s->decorrelate = 0; + break; + case 2: + s->predictor = LEFT; + s->decorrelate = 1; + break; + case 3: + s->predictor = PLANE; + s->decorrelate = avctx->bits_per_coded_sample >= 24; + break; + case 4: + s->predictor = MEDIAN; + s->decorrelate = 0; + break; + default: + s->predictor = LEFT; //OLD + s->decorrelate = 0; + break; + } + s->bitstream_bpp = avctx->bits_per_coded_sample & ~7; + s->context = 0; + + if (read_old_huffman_tables(s) < 0) + return AVERROR_INVALIDDATA; + } + + switch (s->bitstream_bpp) { + case 12: + avctx->pix_fmt = AV_PIX_FMT_YUV420P; + break; + case 16: + if (s->yuy2) { + avctx->pix_fmt = AV_PIX_FMT_YUYV422; + } else { + avctx->pix_fmt = AV_PIX_FMT_YUV422P; + } + break; + case 24: + case 32: + if (s->bgr32) { + avctx->pix_fmt = AV_PIX_FMT_RGB32; + } else { + avctx->pix_fmt = AV_PIX_FMT_BGR24; + } + break; + default: + return AVERROR_INVALIDDATA; + } + + if ((avctx->pix_fmt == AV_PIX_FMT_YUV422P || avctx->pix_fmt == AV_PIX_FMT_YUV420P) && avctx->width & 1) { + av_log(avctx, AV_LOG_ERROR, "width must be even for this colorspace\n"); + return AVERROR_INVALIDDATA; + } + if (s->predictor == MEDIAN && avctx->pix_fmt == AV_PIX_FMT_YUV422P && avctx->width%4) { + av_log(avctx, AV_LOG_ERROR, "width must be a multiple of 4 this colorspace and predictor\n"); + return AVERROR_INVALIDDATA; + } + if (ff_huffyuv_alloc_temp(s)) { + ff_huffyuv_common_end(s); + return AVERROR(ENOMEM); + } + + return 0; +} + +static av_cold int decode_init_thread_copy(AVCodecContext *avctx) +{ + HYuvContext *s = avctx->priv_data; + int i; + + avctx->coded_frame= &s->picture; + if (ff_huffyuv_alloc_temp(s)) { + ff_huffyuv_common_end(s); + return AVERROR(ENOMEM); + } + + for (i = 0; i < 6; i++) + s->vlc[i].table = NULL; + + if (s->version == 2) { + if (read_huffman_tables(s, ((uint8_t*)avctx->extradata) + 4, + avctx->extradata_size) < 0) + return AVERROR_INVALIDDATA; + } else { + if (read_old_huffman_tables(s) < 0) + return AVERROR_INVALIDDATA; + } + + return 0; +} + +/* TODO instead of restarting the read when the code isn't in the first level + * of the joint table, jump into the 2nd level of the individual table. */ +#define READ_2PIX(dst0, dst1, plane1){\ + uint16_t code = get_vlc2(&s->gb, s->vlc[3+plane1].table, VLC_BITS, 1);\ + if(code != 0xffff){\ + dst0 = code>>8;\ + dst1 = code;\ + }else{\ + dst0 = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3);\ + dst1 = get_vlc2(&s->gb, s->vlc[plane1].table, VLC_BITS, 3);\ + }\ +} + +static void decode_422_bitstream(HYuvContext *s, int count) +{ + int i; + + count /= 2; + + if (count >= (get_bits_left(&s->gb)) / (31 * 4)) { + for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) { + READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1); + READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); + } + } else { + for (i = 0; i < count; i++) { + READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1); + READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2); + } + } +} + +static void decode_gray_bitstream(HYuvContext *s, int count) +{ + int i; + + count/=2; + + if (count >= (get_bits_left(&s->gb)) / (31 * 2)) { + for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) { + READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0); + } + } else { + for(i=0; itemp[0][2 * i], s->temp[0][2 * i + 1], 0); + } + } +} + +static av_always_inline void decode_bgr_1(HYuvContext *s, int count, + int decorrelate, int alpha) +{ + int i; + for (i = 0; i < count; i++) { + int code = get_vlc2(&s->gb, s->vlc[3].table, VLC_BITS, 1); + if (code != -1) { + *(uint32_t*)&s->temp[0][4 * i] = s->pix_bgr_map[code]; + } else if(decorrelate) { + s->temp[0][4 * i + G] = get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3); + s->temp[0][4 * i + B] = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3) + + s->temp[0][4 * i + G]; + s->temp[0][4 * i + R] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3) + + s->temp[0][4 * i + G]; + } else { + s->temp[0][4 * i + B] = get_vlc2(&s->gb, s->vlc[0].table, VLC_BITS, 3); + s->temp[0][4 * i + G] = get_vlc2(&s->gb, s->vlc[1].table, VLC_BITS, 3); + s->temp[0][4 * i + R] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3); + } + if (alpha) + s->temp[0][4 * i + A] = get_vlc2(&s->gb, s->vlc[2].table, VLC_BITS, 3); + } +} + +static void decode_bgr_bitstream(HYuvContext *s, int count) +{ + if (s->decorrelate) { + if (s->bitstream_bpp==24) + decode_bgr_1(s, count, 1, 0); + else + decode_bgr_1(s, count, 1, 1); + } else { + if (s->bitstream_bpp==24) + decode_bgr_1(s, count, 0, 0); + else + decode_bgr_1(s, count, 0, 1); + } +} + +static void draw_slice(HYuvContext *s, int y) +{ + int h, cy, i; + int offset[AV_NUM_DATA_POINTERS]; + + if (s->avctx->draw_horiz_band==NULL) + return; + + h = y - s->last_slice_end; + y -= h; + + if (s->bitstream_bpp == 12) { + cy = y>>1; + } else { + cy = y; + } + + offset[0] = s->picture.linesize[0]*y; + offset[1] = s->picture.linesize[1]*cy; + offset[2] = s->picture.linesize[2]*cy; + for (i = 3; i < AV_NUM_DATA_POINTERS; i++) + offset[i] = 0; + emms_c(); + + s->avctx->draw_horiz_band(s->avctx, &s->picture, offset, y, 3, h); + + s->last_slice_end = y + h; +} + +static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, + AVPacket *avpkt) +{ + const uint8_t *buf = avpkt->data; + int buf_size = avpkt->size; + HYuvContext *s = avctx->priv_data; + const int width = s->width; + const int width2 = s->width>>1; + const int height = s->height; + int fake_ystride, fake_ustride, fake_vstride; + AVFrame * const p = &s->picture; + int table_size = 0, ret; + + AVFrame *picture = data; + + av_fast_padded_malloc(&s->bitstream_buffer, + &s->bitstream_buffer_size, + buf_size); + if (!s->bitstream_buffer) + return AVERROR(ENOMEM); + + s->dsp.bswap_buf((uint32_t*)s->bitstream_buffer, + (const uint32_t*)buf, buf_size / 4); + + if (p->data[0]) + ff_thread_release_buffer(avctx, p); + + p->reference = 0; + if ((ret = ff_thread_get_buffer(avctx, p)) < 0) { + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return ret; + } + + if (s->context) { + table_size = read_huffman_tables(s, s->bitstream_buffer, buf_size); + if (table_size < 0) + return AVERROR_INVALIDDATA; + } + + if ((unsigned)(buf_size-table_size) >= INT_MAX / 8) + return AVERROR_INVALIDDATA; + + init_get_bits(&s->gb, s->bitstream_buffer+table_size, + (buf_size-table_size) * 8); + + fake_ystride = s->interlaced ? p->linesize[0] * 2 : p->linesize[0]; + fake_ustride = s->interlaced ? p->linesize[1] * 2 : p->linesize[1]; + fake_vstride = s->interlaced ? p->linesize[2] * 2 : p->linesize[2]; + + s->last_slice_end = 0; + + if (s->bitstream_bpp < 24) { + int y, cy; + int lefty, leftu, leftv; + int lefttopy, lefttopu, lefttopv; + + if (s->yuy2) { + p->data[0][3] = get_bits(&s->gb, 8); + p->data[0][2] = get_bits(&s->gb, 8); + p->data[0][1] = get_bits(&s->gb, 8); + p->data[0][0] = get_bits(&s->gb, 8); + + av_log(avctx, AV_LOG_ERROR, + "YUY2 output is not implemented yet\n"); + return AVERROR_PATCHWELCOME; + } else { + + leftv = p->data[2][0] = get_bits(&s->gb, 8); + lefty = p->data[0][1] = get_bits(&s->gb, 8); + leftu = p->data[1][0] = get_bits(&s->gb, 8); + p->data[0][0] = get_bits(&s->gb, 8); + + switch (s->predictor) { + case LEFT: + case PLANE: + decode_422_bitstream(s, width-2); + lefty = s->dsp.add_hfyu_left_prediction(p->data[0] + 2, s->temp[0], width-2, lefty); + if (!(s->flags&CODEC_FLAG_GRAY)) { + leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + 1, s->temp[1], width2 - 1, leftu); + leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + 1, s->temp[2], width2 - 1, leftv); + } + + for (cy = y = 1; y < s->height; y++, cy++) { + uint8_t *ydst, *udst, *vdst; + + if (s->bitstream_bpp == 12) { + decode_gray_bitstream(s, width); + + ydst = p->data[0] + p->linesize[0] * y; + + lefty = s->dsp.add_hfyu_left_prediction(ydst, s->temp[0], width, lefty); + if (s->predictor == PLANE) { + if (y > s->interlaced) + s->dsp.add_bytes(ydst, ydst - fake_ystride, width); + } + y++; + if (y >= s->height) break; + } + + draw_slice(s, y); + + ydst = p->data[0] + p->linesize[0]*y; + udst = p->data[1] + p->linesize[1]*cy; + vdst = p->data[2] + p->linesize[2]*cy; + + decode_422_bitstream(s, width); + lefty = s->dsp.add_hfyu_left_prediction(ydst, s->temp[0], width, lefty); + if (!(s->flags & CODEC_FLAG_GRAY)) { + leftu= s->dsp.add_hfyu_left_prediction(udst, s->temp[1], width2, leftu); + leftv= s->dsp.add_hfyu_left_prediction(vdst, s->temp[2], width2, leftv); + } + if (s->predictor == PLANE) { + if (cy > s->interlaced) { + s->dsp.add_bytes(ydst, ydst - fake_ystride, width); + if (!(s->flags & CODEC_FLAG_GRAY)) { + s->dsp.add_bytes(udst, udst - fake_ustride, width2); + s->dsp.add_bytes(vdst, vdst - fake_vstride, width2); + } + } + } + } + draw_slice(s, height); + + break; + case MEDIAN: + /* first line except first 2 pixels is left predicted */ + decode_422_bitstream(s, width - 2); + lefty= s->dsp.add_hfyu_left_prediction(p->data[0] + 2, s->temp[0], width - 2, lefty); + if (!(s->flags & CODEC_FLAG_GRAY)) { + leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + 1, s->temp[1], width2 - 1, leftu); + leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + 1, s->temp[2], width2 - 1, leftv); + } + + cy = y = 1; + + /* second line is left predicted for interlaced case */ + if (s->interlaced) { + decode_422_bitstream(s, width); + lefty = s->dsp.add_hfyu_left_prediction(p->data[0] + p->linesize[0], s->temp[0], width, lefty); + if (!(s->flags & CODEC_FLAG_GRAY)) { + leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + p->linesize[2], s->temp[1], width2, leftu); + leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + p->linesize[1], s->temp[2], width2, leftv); + } + y++; cy++; + } + + /* next 4 pixels are left predicted too */ + decode_422_bitstream(s, 4); + lefty = s->dsp.add_hfyu_left_prediction(p->data[0] + fake_ystride, s->temp[0], 4, lefty); + if (!(s->flags&CODEC_FLAG_GRAY)) { + leftu = s->dsp.add_hfyu_left_prediction(p->data[1] + fake_ustride, s->temp[1], 2, leftu); + leftv = s->dsp.add_hfyu_left_prediction(p->data[2] + fake_vstride, s->temp[2], 2, leftv); + } + + /* next line except the first 4 pixels is median predicted */ + lefttopy = p->data[0][3]; + decode_422_bitstream(s, width - 4); + s->dsp.add_hfyu_median_prediction(p->data[0] + fake_ystride+4, p->data[0]+4, s->temp[0], width-4, &lefty, &lefttopy); + if (!(s->flags&CODEC_FLAG_GRAY)) { + lefttopu = p->data[1][1]; + lefttopv = p->data[2][1]; + s->dsp.add_hfyu_median_prediction(p->data[1] + fake_ustride+2, p->data[1] + 2, s->temp[1], width2 - 2, &leftu, &lefttopu); + s->dsp.add_hfyu_median_prediction(p->data[2] + fake_vstride+2, p->data[2] + 2, s->temp[2], width2 - 2, &leftv, &lefttopv); + } + y++; cy++; + + for (; ybitstream_bpp == 12) { + while (2 * cy > y) { + decode_gray_bitstream(s, width); + ydst = p->data[0] + p->linesize[0] * y; + s->dsp.add_hfyu_median_prediction(ydst, ydst - fake_ystride, s->temp[0], width, &lefty, &lefttopy); + y++; + } + if (y >= height) break; + } + draw_slice(s, y); + + decode_422_bitstream(s, width); + + ydst = p->data[0] + p->linesize[0] * y; + udst = p->data[1] + p->linesize[1] * cy; + vdst = p->data[2] + p->linesize[2] * cy; + + s->dsp.add_hfyu_median_prediction(ydst, ydst - fake_ystride, s->temp[0], width, &lefty, &lefttopy); + if (!(s->flags & CODEC_FLAG_GRAY)) { + s->dsp.add_hfyu_median_prediction(udst, udst - fake_ustride, s->temp[1], width2, &leftu, &lefttopu); + s->dsp.add_hfyu_median_prediction(vdst, vdst - fake_vstride, s->temp[2], width2, &leftv, &lefttopv); + } + } + + draw_slice(s, height); + break; + } + } + } else { + int y; + int leftr, leftg, leftb, lefta; + const int last_line = (height - 1) * p->linesize[0]; + + if (s->bitstream_bpp == 32) { + lefta = p->data[0][last_line+A] = get_bits(&s->gb, 8); + leftr = p->data[0][last_line+R] = get_bits(&s->gb, 8); + leftg = p->data[0][last_line+G] = get_bits(&s->gb, 8); + leftb = p->data[0][last_line+B] = get_bits(&s->gb, 8); + } else { + leftr = p->data[0][last_line+R] = get_bits(&s->gb, 8); + leftg = p->data[0][last_line+G] = get_bits(&s->gb, 8); + leftb = p->data[0][last_line+B] = get_bits(&s->gb, 8); + lefta = p->data[0][last_line+A] = 255; + skip_bits(&s->gb, 8); + } + + if (s->bgr32) { + switch (s->predictor) { + case LEFT: + case PLANE: + decode_bgr_bitstream(s, width - 1); + s->dsp.add_hfyu_left_prediction_bgr32(p->data[0] + last_line+4, s->temp[0], width - 1, &leftr, &leftg, &leftb, &lefta); + + for (y = s->height - 2; y >= 0; y--) { //Yes it is stored upside down. + decode_bgr_bitstream(s, width); + + s->dsp.add_hfyu_left_prediction_bgr32(p->data[0] + p->linesize[0]*y, s->temp[0], width, &leftr, &leftg, &leftb, &lefta); + if (s->predictor == PLANE) { + if (s->bitstream_bpp != 32) lefta = 0; + if ((y & s->interlaced) == 0 && + y < s->height - 1 - s->interlaced) { + s->dsp.add_bytes(p->data[0] + p->linesize[0] * y, + p->data[0] + p->linesize[0] * y + + fake_ystride, fake_ystride); + } + } + } + // just 1 large slice as this is not possible in reverse order + draw_slice(s, height); + break; + default: + av_log(avctx, AV_LOG_ERROR, + "prediction type not supported!\n"); + } + }else{ + av_log(avctx, AV_LOG_ERROR, + "BGR24 output is not implemented yet\n"); + return AVERROR_PATCHWELCOME; + } + } + emms_c(); + + *picture = *p; + *got_frame = 1; + + return (get_bits_count(&s->gb) + 31) / 32 * 4 + table_size; +} + +static av_cold int decode_end(AVCodecContext *avctx) +{ + HYuvContext *s = avctx->priv_data; + int i; + + if (s->picture.data[0]) + avctx->release_buffer(avctx, &s->picture); + + ff_huffyuv_common_end(s); + av_freep(&s->bitstream_buffer); + + for (i = 0; i < 6; i++) { + ff_free_vlc(&s->vlc[i]); + } + + return 0; +} + +#if CONFIG_HUFFYUV_DECODER +AVCodec ff_huffyuv_decoder = { + .name = "huffyuv", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_HUFFYUV, + .priv_data_size = sizeof(HYuvContext), + .init = decode_init, + .close = decode_end, + .decode = decode_frame, + .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | + CODEC_CAP_FRAME_THREADS, + .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy), + .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"), +}; +#endif + +#if CONFIG_FFVHUFF_DECODER +AVCodec ff_ffvhuff_decoder = { + .name = "ffvhuff", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_FFVHUFF, + .priv_data_size = sizeof(HYuvContext), + .init = decode_init, + .close = decode_end, + .decode = decode_frame, + .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND | + CODEC_CAP_FRAME_THREADS, + .init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy), + .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"), +}; +#endif diff --git a/libavcodec/huffyuvenc.c b/libavcodec/huffyuvenc.c new file mode 100644 index 0000000000..95dcb88061 --- /dev/null +++ b/libavcodec/huffyuvenc.c @@ -0,0 +1,700 @@ +/* + * Copyright (c) 2002-2003 Michael Niedermayer + * + * see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of + * the algorithm used + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * huffyuv encoder + */ + +#include "avcodec.h" +#include "huffyuv.h" +#include "huffman.h" +#include "internal.h" +#include "put_bits.h" + +static inline int sub_left_prediction(HYuvContext *s, uint8_t *dst, + const uint8_t *src, int w, int left) +{ + int i; + if (w < 32) { + for (i = 0; i < w; i++) { + const int temp = src[i]; + dst[i] = temp - left; + left = temp; + } + return left; + } else { + for (i = 0; i < 16; i++) { + const int temp = src[i]; + dst[i] = temp - left; + left = temp; + } + s->dsp.diff_bytes(dst + 16, src + 16, src + 15, w - 16); + return src[w-1]; + } +} + +static inline void sub_left_prediction_bgr32(HYuvContext *s, uint8_t *dst, + const uint8_t *src, int w, + int *red, int *green, int *blue, int *alpha) +{ + int i; + int r,g,b,a; + r = *red; + g = *green; + b = *blue; + a = *alpha; + for (i = 0; i < FFMIN(w, 4); i++) { + const int rt = src[i * 4 + R]; + const int gt = src[i * 4 + G]; + const int bt = src[i * 4 + B]; + const int at = src[i * 4 + A]; + dst[i * 4 + R] = rt - r; + dst[i * 4 + G] = gt - g; + dst[i * 4 + B] = bt - b; + dst[i * 4 + A] = at - a; + r = rt; + g = gt; + b = bt; + a = at; + } + + s->dsp.diff_bytes(dst + 16, src + 16, src + 12, w * 4 - 16); + + *red = src[(w - 1) * 4 + R]; + *green = src[(w - 1) * 4 + G]; + *blue = src[(w - 1) * 4 + B]; + *alpha = src[(w - 1) * 4 + A]; +} + +static inline void sub_left_prediction_rgb24(HYuvContext *s, uint8_t *dst, const uint8_t *src, int w, int *red, int *green, int *blue){ + int i; + int r,g,b; + r = *red; + g = *green; + b = *blue; + for (i = 0; i < FFMIN(w,16); i++) { + const int rt = src[i*3 + 0]; + const int gt = src[i*3 + 1]; + const int bt = src[i*3 + 2]; + dst[i*3 + 0] = rt - r; + dst[i*3 + 1] = gt - g; + dst[i*3 + 2] = bt - b; + r = rt; + g = gt; + b = bt; + } + + s->dsp.diff_bytes(dst + 48, src + 48, src + 48 - 3, w*3 - 48); + + *red = src[(w - 1)*3 + 0]; + *green = src[(w - 1)*3 + 1]; + *blue = src[(w - 1)*3 + 2]; +} + +static int store_table(HYuvContext *s, const uint8_t *len, uint8_t *buf) +{ + int i; + int index = 0; + + for (i = 0; i < 256;) { + int val = len[i]; + int repeat = 0; + + for (; i < 256 && len[i] == val && repeat < 255; i++) + repeat++; + + av_assert0(val < 32 && val >0 && repeat<256 && repeat>0); + if (repeat > 7) { + buf[index++] = val; + buf[index++] = repeat; + } else { + buf[index++] = val | (repeat << 5); + } + } + + return index; +} + +static av_cold int encode_init(AVCodecContext *avctx) +{ + HYuvContext *s = avctx->priv_data; + int i, j; + + ff_huffyuv_common_init(avctx); + + avctx->extradata = av_mallocz(1024*30); // 256*3+4 == 772 + avctx->stats_out = av_mallocz(1024*30); // 21*256*3(%llu ) + 3(\n) + 1(0) = 16132 + if (!avctx->extradata || !avctx->stats_out) { + av_freep(&avctx->stats_out); + return AVERROR(ENOMEM); + } + s->version = 2; + + avctx->coded_frame = &s->picture; + + switch (avctx->pix_fmt) { + case AV_PIX_FMT_YUV420P: + case AV_PIX_FMT_YUV422P: + if (s->width & 1) { + av_log(avctx, AV_LOG_ERROR, "width must be even for this colorspace\n"); + return AVERROR(EINVAL); + } + s->bitstream_bpp = avctx->pix_fmt == AV_PIX_FMT_YUV420P ? 12 : 16; + break; + case AV_PIX_FMT_RGB32: + s->bitstream_bpp = 32; + break; + case AV_PIX_FMT_RGB24: + s->bitstream_bpp = 24; + break; + default: + av_log(avctx, AV_LOG_ERROR, "format not supported\n"); + return AVERROR(EINVAL); + } + avctx->bits_per_coded_sample = s->bitstream_bpp; + s->decorrelate = s->bitstream_bpp >= 24; + s->predictor = avctx->prediction_method; + s->interlaced = avctx->flags&CODEC_FLAG_INTERLACED_ME ? 1 : 0; + if (avctx->context_model == 1) { + s->context = avctx->context_model; + if (s->flags & (CODEC_FLAG_PASS1|CODEC_FLAG_PASS2)) { + av_log(avctx, AV_LOG_ERROR, + "context=1 is not compatible with " + "2 pass huffyuv encoding\n"); + return AVERROR(EINVAL); + } + }else s->context= 0; + + if (avctx->codec->id == AV_CODEC_ID_HUFFYUV) { + if (avctx->pix_fmt == AV_PIX_FMT_YUV420P) { + av_log(avctx, AV_LOG_ERROR, + "Error: YV12 is not supported by huffyuv; use " + "vcodec=ffvhuff or format=422p\n"); + return AVERROR(EINVAL); + } + if (avctx->context_model) { + av_log(avctx, AV_LOG_ERROR, + "Error: per-frame huffman tables are not supported " + "by huffyuv; use vcodec=ffvhuff\n"); + return AVERROR(EINVAL); + } + if (s->interlaced != ( s->height > 288 )) + av_log(avctx, AV_LOG_INFO, + "using huffyuv 2.2.0 or newer interlacing flag\n"); + } + + if (s->bitstream_bpp >= 24 && s->predictor == MEDIAN) { + av_log(avctx, AV_LOG_ERROR, + "Error: RGB is incompatible with median predictor\n"); + return AVERROR(EINVAL); + } + + ((uint8_t*)avctx->extradata)[0] = s->predictor | (s->decorrelate << 6); + ((uint8_t*)avctx->extradata)[1] = s->bitstream_bpp; + ((uint8_t*)avctx->extradata)[2] = s->interlaced ? 0x10 : 0x20; + if (s->context) + ((uint8_t*)avctx->extradata)[2] |= 0x40; + ((uint8_t*)avctx->extradata)[3] = 0; + s->avctx->extradata_size = 4; + + if (avctx->stats_in) { + char *p = avctx->stats_in; + + for (i = 0; i < 3; i++) + for (j = 0; j < 256; j++) + s->stats[i][j] = 1; + + for (;;) { + for (i = 0; i < 3; i++) { + char *next; + + for (j = 0; j < 256; j++) { + s->stats[i][j] += strtol(p, &next, 0); + if (next == p) return -1; + p = next; + } + } + if (p[0] == 0 || p[1] == 0 || p[2] == 0) break; + } + } else { + for (i = 0; i < 3; i++) + for (j = 0; j < 256; j++) { + int d = FFMIN(j, 256 - j); + + s->stats[i][j] = 100000000 / (d + 1); + } + } + + for (i = 0; i < 3; i++) { + ff_huff_gen_len_table(s->len[i], s->stats[i]); + + if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i]) < 0) { + return -1; + } + + s->avctx->extradata_size += + store_table(s, s->len[i], &((uint8_t*)s->avctx->extradata)[s->avctx->extradata_size]); + } + + if (s->context) { + for (i = 0; i < 3; i++) { + int pels = s->width * s->height / (i ? 40 : 10); + for (j = 0; j < 256; j++) { + int d = FFMIN(j, 256 - j); + s->stats[i][j] = pels/(d + 1); + } + } + } else { + for (i = 0; i < 3; i++) + for (j = 0; j < 256; j++) + s->stats[i][j]= 0; + } + + if (ff_huffyuv_alloc_temp(s)) { + ff_huffyuv_common_end(s); + return AVERROR(ENOMEM); + } + + s->picture_number=0; + + return 0; +} +static int encode_422_bitstream(HYuvContext *s, int offset, int count) +{ + int i; + const uint8_t *y = s->temp[0] + offset; + const uint8_t *u = s->temp[1] + offset / 2; + const uint8_t *v = s->temp[2] + offset / 2; + + if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 2 * 4 * count) { + av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); + return -1; + } + +#define LOAD4\ + int y0 = y[2 * i];\ + int y1 = y[2 * i + 1];\ + int u0 = u[i];\ + int v0 = v[i]; + + count /= 2; + + if (s->flags & CODEC_FLAG_PASS1) { + for(i = 0; i < count; i++) { + LOAD4; + s->stats[0][y0]++; + s->stats[1][u0]++; + s->stats[0][y1]++; + s->stats[2][v0]++; + } + } + if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT) + return 0; + if (s->context) { + for (i = 0; i < count; i++) { + LOAD4; + s->stats[0][y0]++; + put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]); + s->stats[1][u0]++; + put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]); + s->stats[0][y1]++; + put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]); + s->stats[2][v0]++; + put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]); + } + } else { + for(i = 0; i < count; i++) { + LOAD4; + put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]); + put_bits(&s->pb, s->len[1][u0], s->bits[1][u0]); + put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]); + put_bits(&s->pb, s->len[2][v0], s->bits[2][v0]); + } + } + return 0; +} + +static int encode_gray_bitstream(HYuvContext *s, int count) +{ + int i; + + if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb) >> 3) < 4 * count) { + av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); + return -1; + } + +#define LOAD2\ + int y0 = s->temp[0][2 * i];\ + int y1 = s->temp[0][2 * i + 1]; +#define STAT2\ + s->stats[0][y0]++;\ + s->stats[0][y1]++; +#define WRITE2\ + put_bits(&s->pb, s->len[0][y0], s->bits[0][y0]);\ + put_bits(&s->pb, s->len[0][y1], s->bits[0][y1]); + + count /= 2; + + if (s->flags & CODEC_FLAG_PASS1) { + for (i = 0; i < count; i++) { + LOAD2; + STAT2; + } + } + if (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT) + return 0; + + if (s->context) { + for (i = 0; i < count; i++) { + LOAD2; + STAT2; + WRITE2; + } + } else { + for (i = 0; i < count; i++) { + LOAD2; + WRITE2; + } + } + return 0; +} + +static inline int encode_bgra_bitstream(HYuvContext *s, int count, int planes) +{ + int i; + + if (s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < 4*planes*count) { + av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); + return -1; + } + +#define LOAD3\ + int g = s->temp[0][planes==3 ? 3*i + 1 : 4*i + G];\ + int b = (s->temp[0][planes==3 ? 3*i + 2 : 4*i + B] - g) & 0xff;\ + int r = (s->temp[0][planes==3 ? 3*i + 0 : 4*i + R] - g) & 0xff;\ + int a = s->temp[0][planes*i + A]; +#define STAT3\ + s->stats[0][b]++;\ + s->stats[1][g]++;\ + s->stats[2][r]++;\ + if(planes==4) s->stats[2][a]++; +#define WRITE3\ + put_bits(&s->pb, s->len[1][g], s->bits[1][g]);\ + put_bits(&s->pb, s->len[0][b], s->bits[0][b]);\ + put_bits(&s->pb, s->len[2][r], s->bits[2][r]);\ + if(planes==4) put_bits(&s->pb, s->len[2][a], s->bits[2][a]); + + if ((s->flags & CODEC_FLAG_PASS1) && + (s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) { + for (i = 0; i < count; i++) { + LOAD3; + STAT3; + } + } else if (s->context || (s->flags & CODEC_FLAG_PASS1)) { + for (i = 0; i < count; i++) { + LOAD3; + STAT3; + WRITE3; + } + } else { + for (i = 0; i < count; i++) { + LOAD3; + WRITE3; + } + } + return 0; +} + +static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, + const AVFrame *pict, int *got_packet) +{ + HYuvContext *s = avctx->priv_data; + const int width = s->width; + const int width2 = s->width>>1; + const int height = s->height; + const int fake_ystride = s->interlaced ? pict->linesize[0]*2 : pict->linesize[0]; + const int fake_ustride = s->interlaced ? pict->linesize[1]*2 : pict->linesize[1]; + const int fake_vstride = s->interlaced ? pict->linesize[2]*2 : pict->linesize[2]; + AVFrame * const p = &s->picture; + int i, j, size = 0, ret; + + if ((ret = ff_alloc_packet2(avctx, pkt, width * height * 3 * 4 + FF_MIN_BUFFER_SIZE)) < 0) + return ret; + + *p = *pict; + p->pict_type = AV_PICTURE_TYPE_I; + p->key_frame = 1; + + if (s->context) { + for (i = 0; i < 3; i++) { + ff_huff_gen_len_table(s->len[i], s->stats[i]); + if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i]) < 0) + return -1; + size += store_table(s, s->len[i], &pkt->data[size]); + } + + for (i = 0; i < 3; i++) + for (j = 0; j < 256; j++) + s->stats[i][j] >>= 1; + } + + init_put_bits(&s->pb, pkt->data + size, pkt->size - size); + + if (avctx->pix_fmt == AV_PIX_FMT_YUV422P || + avctx->pix_fmt == AV_PIX_FMT_YUV420P) { + int lefty, leftu, leftv, y, cy; + + put_bits(&s->pb, 8, leftv = p->data[2][0]); + put_bits(&s->pb, 8, lefty = p->data[0][1]); + put_bits(&s->pb, 8, leftu = p->data[1][0]); + put_bits(&s->pb, 8, p->data[0][0]); + + lefty = sub_left_prediction(s, s->temp[0], p->data[0], width , 0); + leftu = sub_left_prediction(s, s->temp[1], p->data[1], width2, 0); + leftv = sub_left_prediction(s, s->temp[2], p->data[2], width2, 0); + + encode_422_bitstream(s, 2, width-2); + + if (s->predictor==MEDIAN) { + int lefttopy, lefttopu, lefttopv; + cy = y = 1; + if (s->interlaced) { + lefty = sub_left_prediction(s, s->temp[0], p->data[0] + p->linesize[0], width , lefty); + leftu = sub_left_prediction(s, s->temp[1], p->data[1] + p->linesize[1], width2, leftu); + leftv = sub_left_prediction(s, s->temp[2], p->data[2] + p->linesize[2], width2, leftv); + + encode_422_bitstream(s, 0, width); + y++; cy++; + } + + lefty = sub_left_prediction(s, s->temp[0], p->data[0] + fake_ystride, 4, lefty); + leftu = sub_left_prediction(s, s->temp[1], p->data[1] + fake_ustride, 2, leftu); + leftv = sub_left_prediction(s, s->temp[2], p->data[2] + fake_vstride, 2, leftv); + + encode_422_bitstream(s, 0, 4); + + lefttopy = p->data[0][3]; + lefttopu = p->data[1][1]; + lefttopv = p->data[2][1]; + s->dsp.sub_hfyu_median_prediction(s->temp[0], p->data[0]+4, p->data[0] + fake_ystride + 4, width - 4 , &lefty, &lefttopy); + s->dsp.sub_hfyu_median_prediction(s->temp[1], p->data[1]+2, p->data[1] + fake_ustride + 2, width2 - 2, &leftu, &lefttopu); + s->dsp.sub_hfyu_median_prediction(s->temp[2], p->data[2]+2, p->data[2] + fake_vstride + 2, width2 - 2, &leftv, &lefttopv); + encode_422_bitstream(s, 0, width - 4); + y++; cy++; + + for (; y < height; y++,cy++) { + uint8_t *ydst, *udst, *vdst; + + if (s->bitstream_bpp == 12) { + while (2 * cy > y) { + ydst = p->data[0] + p->linesize[0] * y; + s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy); + encode_gray_bitstream(s, width); + y++; + } + if (y >= height) break; + } + ydst = p->data[0] + p->linesize[0] * y; + udst = p->data[1] + p->linesize[1] * cy; + vdst = p->data[2] + p->linesize[2] * cy; + + s->dsp.sub_hfyu_median_prediction(s->temp[0], ydst - fake_ystride, ydst, width , &lefty, &lefttopy); + s->dsp.sub_hfyu_median_prediction(s->temp[1], udst - fake_ustride, udst, width2, &leftu, &lefttopu); + s->dsp.sub_hfyu_median_prediction(s->temp[2], vdst - fake_vstride, vdst, width2, &leftv, &lefttopv); + + encode_422_bitstream(s, 0, width); + } + } else { + for (cy = y = 1; y < height; y++, cy++) { + uint8_t *ydst, *udst, *vdst; + + /* encode a luma only line & y++ */ + if (s->bitstream_bpp == 12) { + ydst = p->data[0] + p->linesize[0] * y; + + if (s->predictor == PLANE && s->interlaced < y) { + s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width); + + lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty); + } else { + lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty); + } + encode_gray_bitstream(s, width); + y++; + if (y >= height) break; + } + + ydst = p->data[0] + p->linesize[0] * y; + udst = p->data[1] + p->linesize[1] * cy; + vdst = p->data[2] + p->linesize[2] * cy; + + if (s->predictor == PLANE && s->interlaced < cy) { + s->dsp.diff_bytes(s->temp[1], ydst, ydst - fake_ystride, width); + s->dsp.diff_bytes(s->temp[2], udst, udst - fake_ustride, width2); + s->dsp.diff_bytes(s->temp[2] + width2, vdst, vdst - fake_vstride, width2); + + lefty = sub_left_prediction(s, s->temp[0], s->temp[1], width , lefty); + leftu = sub_left_prediction(s, s->temp[1], s->temp[2], width2, leftu); + leftv = sub_left_prediction(s, s->temp[2], s->temp[2] + width2, width2, leftv); + } else { + lefty = sub_left_prediction(s, s->temp[0], ydst, width , lefty); + leftu = sub_left_prediction(s, s->temp[1], udst, width2, leftu); + leftv = sub_left_prediction(s, s->temp[2], vdst, width2, leftv); + } + + encode_422_bitstream(s, 0, width); + } + } + } else if(avctx->pix_fmt == AV_PIX_FMT_RGB32) { + uint8_t *data = p->data[0] + (height - 1) * p->linesize[0]; + const int stride = -p->linesize[0]; + const int fake_stride = -fake_ystride; + int y; + int leftr, leftg, leftb, lefta; + + put_bits(&s->pb, 8, lefta = data[A]); + put_bits(&s->pb, 8, leftr = data[R]); + put_bits(&s->pb, 8, leftg = data[G]); + put_bits(&s->pb, 8, leftb = data[B]); + + sub_left_prediction_bgr32(s, s->temp[0], data + 4, width - 1, &leftr, &leftg, &leftb, &lefta); + encode_bgra_bitstream(s, width - 1, 4); + + for (y = 1; y < s->height; y++) { + uint8_t *dst = data + y*stride; + if (s->predictor == PLANE && s->interlaced < y) { + s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width * 4); + sub_left_prediction_bgr32(s, s->temp[0], s->temp[1], width, &leftr, &leftg, &leftb, &lefta); + } else { + sub_left_prediction_bgr32(s, s->temp[0], dst, width, &leftr, &leftg, &leftb, &lefta); + } + encode_bgra_bitstream(s, width, 4); + } + }else if(avctx->pix_fmt == AV_PIX_FMT_RGB24){ + uint8_t *data = p->data[0] + (height-1)*p->linesize[0]; + const int stride = -p->linesize[0]; + const int fake_stride = -fake_ystride; + int y; + int leftr, leftg, leftb; + + put_bits(&s->pb, 8, leftr= data[0]); + put_bits(&s->pb, 8, leftg= data[1]); + put_bits(&s->pb, 8, leftb= data[2]); + put_bits(&s->pb, 8, 0); + + sub_left_prediction_rgb24(s, s->temp[0], data+3, width-1, &leftr, &leftg, &leftb); + encode_bgra_bitstream(s, width-1, 3); + + for(y=1; yheight; y++){ + uint8_t *dst = data + y*stride; + if(s->predictor == PLANE && s->interlaced < y){ + s->dsp.diff_bytes(s->temp[1], dst, dst - fake_stride, width*3); + sub_left_prediction_rgb24(s, s->temp[0], s->temp[1], width, &leftr, &leftg, &leftb); + }else{ + sub_left_prediction_rgb24(s, s->temp[0], dst, width, &leftr, &leftg, &leftb); + } + encode_bgra_bitstream(s, width, 3); + } + } else { + av_log(avctx, AV_LOG_ERROR, "Format not supported!\n"); + } + emms_c(); + + size += (put_bits_count(&s->pb) + 31) / 8; + put_bits(&s->pb, 16, 0); + put_bits(&s->pb, 15, 0); + size /= 4; + + if ((s->flags&CODEC_FLAG_PASS1) && (s->picture_number & 31) == 0) { + int j; + char *p = avctx->stats_out; + char *end = p + 1024*30; + for (i = 0; i < 3; i++) { + for (j = 0; j < 256; j++) { + snprintf(p, end-p, "%"PRIu64" ", s->stats[i][j]); + p += strlen(p); + s->stats[i][j]= 0; + } + snprintf(p, end-p, "\n"); + p++; + } + } else + avctx->stats_out[0] = '\0'; + if (!(s->avctx->flags2 & CODEC_FLAG2_NO_OUTPUT)) { + flush_put_bits(&s->pb); + s->dsp.bswap_buf((uint32_t*)pkt->data, (uint32_t*)pkt->data, size); + } + + s->picture_number++; + + pkt->size = size * 4; + pkt->flags |= AV_PKT_FLAG_KEY; + *got_packet = 1; + + return 0; +} + +static av_cold int encode_end(AVCodecContext *avctx) +{ + HYuvContext *s = avctx->priv_data; + + ff_huffyuv_common_end(s); + + av_freep(&avctx->extradata); + av_freep(&avctx->stats_out); + + return 0; +} + +#if CONFIG_HUFFYUV_ENCODER +AVCodec ff_huffyuv_encoder = { + .name = "huffyuv", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_HUFFYUV, + .priv_data_size = sizeof(HYuvContext), + .init = encode_init, + .encode2 = encode_frame, + .close = encode_end, + .pix_fmts = (const enum AVPixelFormat[]){ + AV_PIX_FMT_YUV422P, AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE + }, + .long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"), +}; +#endif + +#if CONFIG_FFVHUFF_ENCODER +AVCodec ff_ffvhuff_encoder = { + .name = "ffvhuff", + .type = AVMEDIA_TYPE_VIDEO, + .id = AV_CODEC_ID_FFVHUFF, + .priv_data_size = sizeof(HYuvContext), + .init = encode_init, + .encode2 = encode_frame, + .close = encode_end, + .pix_fmts = (const enum AVPixelFormat[]){ + AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB32, AV_PIX_FMT_NONE + }, + .long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"), +}; +#endif