diff options
Diffstat (limited to 'contrib/ffmpeg/libavcodec/huffyuv.c')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/huffyuv.c | 1488 |
1 files changed, 1488 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/huffyuv.c b/contrib/ffmpeg/libavcodec/huffyuv.c new file mode 100644 index 000000000..dddcdf1db --- /dev/null +++ b/contrib/ffmpeg/libavcodec/huffyuv.c @@ -0,0 +1,1488 @@ +/* + * huffyuv codec for libavcodec + * + * Copyright (c) 2002-2003 Michael Niedermayer <michaelni@gmx.at> + * + * 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.c + * huffyuv codec for libavcodec. + */ + +#include "avcodec.h" +#include "bitstream.h" +#include "dsputil.h" + +#define VLC_BITS 11 + +#ifdef WORDS_BIGENDIAN +#define B 3 +#define G 2 +#define R 1 +#else +#define B 0 +#define G 1 +#define R 2 +#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<<VLC_BITS]; + VLC vlc[6]; //Y,U,V,YY,YU,YV + AVFrame picture; + uint8_t *bitstream_buffer; + unsigned int bitstream_buffer_size; + DSPContext dsp; +}HYuvContext; + +static const unsigned char classic_shift_luma[] = { + 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 +}; + +static const unsigned char classic_shift_chroma[] = { + 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 +}; + +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 inline int add_left_prediction(uint8_t *dst, uint8_t *src, int w, int acc){ + int i; + + for(i=0; i<w-1; i++){ + acc+= src[i]; + dst[i]= acc; + i++; + acc+= src[i]; + dst[i]= acc; + } + + for(; i<w; i++){ + acc+= src[i]; + dst[i]= acc; + } + + return acc; +} + +static inline void add_median_prediction(uint8_t *dst, uint8_t *src1, uint8_t *diff, int w, int *left, int *left_top){ + int i; + uint8_t l, lt; + + l= *left; + lt= *left_top; + + for(i=0; i<w; i++){ + l= mid_pred(l, src1[i], (l + src1[i] - lt)&0xFF) + diff[i]; + lt= src1[i]; + dst[i]= l; + } + + *left= l; + *left_top= lt; +} + +static inline void add_left_prediction_bgr32(uint8_t *dst, 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<w; i++){ + b+= src[4*i+B]; + g+= src[4*i+G]; + r+= src[4*i+R]; + + dst[4*i+B]= b; + dst[4*i+G]= g; + dst[4*i+R]= r; + } + + *red= r; + *green= g; + *blue= b; +} + +static inline int sub_left_prediction(HYuvContext *s, uint8_t *dst, 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, 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,4); i++){ + const int rt= src[i*4+R]; + const int gt= src[i*4+G]; + const int bt= src[i*4+B]; + dst[i*4+R]= rt - r; + dst[i*4+G]= gt - g; + dst[i*4+B]= bt - b; + r = rt; + g = gt; + b = bt; + } + 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]; +} + +static void 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); +//printf("%d %d\n", val, repeat); + while (repeat--) + dst[i++] = val; + } +} + +static int generate_bits_table(uint32_t *dst, uint8_t *len_table){ + int len, index; + uint32_t bits=0; + + for(len=32; len>0; len--){ + for(index=0; index<256; index++){ + if(len_table[index]==len) + dst[index]= bits++; + } + if(bits & 1){ + av_log(NULL, AV_LOG_ERROR, "Error generating huffman table\n"); + return -1; + } + bits >>= 1; + } + return 0; +} + +#ifdef CONFIG_ENCODERS +typedef struct { + uint64_t val; + int name; +} heap_elem_t; + +static void heap_sift(heap_elem_t *h, int root, int size) +{ + while(root*2+1 < size) { + int child = root*2+1; + if(child < size-1 && h[child].val > h[child+1].val) + child++; + if(h[root].val > h[child].val) { + FFSWAP(heap_elem_t, h[root], h[child]); + root = child; + } else + break; + } +} + +static void generate_len_table(uint8_t *dst, uint64_t *stats, int size){ + heap_elem_t h[size]; + int up[2*size]; + int len[2*size]; + int offset, i, next; + + for(offset=1; ; offset<<=1){ + for(i=0; i<size; i++){ + h[i].name = i; + h[i].val = (stats[i] << 8) + offset; + } + for(i=size/2-1; i>=0; i--) + heap_sift(h, i, size); + + for(next=size; next<size*2-1; next++){ + // merge the two smallest entries, and put it back in the heap + uint64_t min1v = h[0].val; + up[h[0].name] = next; + h[0].val = INT64_MAX; + heap_sift(h, 0, size); + up[h[0].name] = next; + h[0].name = next; + h[0].val += min1v; + heap_sift(h, 0, size); + } + + len[2*size-2] = 0; + for(i=2*size-3; i>=size; i--) + len[i] = len[up[i]] + 1; + for(i=0; i<size; i++) { + dst[i] = len[up[i]] + 1; + if(dst[i] >= 32) break; + } + if(i==size) break; + } +} +#endif /* CONFIG_ENCODERS */ + +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++; + } + } + free_vlc(&s->vlc[3+p]); + 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 becaues 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++; + } + } + } + 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, uint8_t *src, int length){ + GetBitContext gb; + int i; + + init_get_bits(&gb, src, length*8); + + for(i=0; i<3; i++){ + read_len_table(s->len[i], &gb); + + if(generate_bits_table(s->bits[i], s->len[i])<0){ + return -1; + } +#if 0 +for(j=0; j<256; j++){ +printf("%6X, %2d, %3d\n", s->bits[i][j], s->len[i][j], j); +} +#endif + 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){ +#if 1 + GetBitContext gb; + int i; + + init_get_bits(&gb, classic_shift_luma, sizeof(classic_shift_luma)*8); + read_len_table(s->len[0], &gb); + init_get_bits(&gb, classic_shift_chroma, sizeof(classic_shift_chroma)*8); + read_len_table(s->len[1], &gb); + + 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++){ + 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; +#else + av_log(s->avctx, AV_LOG_DEBUG, "v1 huffyuv is not supported \n"); + return -1; +#endif +} + +static void alloc_temp(HYuvContext *s){ + int i; + + if(s->bitstream_bpp<24){ + for(i=0; i<3; i++){ + s->temp[i]= av_malloc(s->width + 16); + } + }else{ + for(i=0; i<2; i++){ + s->temp[i]= av_malloc(4*s->width + 16); + } + } +} + +static int common_init(AVCodecContext *avctx){ + HYuvContext *s = avctx->priv_data; + + s->avctx= avctx; + s->flags= avctx->flags; + + dsputil_init(&s->dsp, avctx); + + s->width= avctx->width; + s->height= avctx->height; + assert(s->width>0 && s->height>0); + + return 0; +} + +#ifdef CONFIG_DECODERS +static 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; + s->interlaced= s->height > 288; + +s->bgr32=1; +//if(avctx->extradata) +// printf("extradata:%X, extradata_size:%d\n", *(uint32_t*)avctx->extradata, avctx->extradata_size); + if(avctx->extradata_size){ + if((avctx->bits_per_sample&7) && avctx->bits_per_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; + + 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_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) < 0) + return -1; + }else{ + switch(avctx->bits_per_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_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_sample & ~7; + s->context= 0; + + if(read_old_huffman_tables(s) < 0) + return -1; + } + + switch(s->bitstream_bpp){ + case 12: + avctx->pix_fmt = PIX_FMT_YUV420P; + break; + case 16: + if(s->yuy2){ + avctx->pix_fmt = PIX_FMT_YUYV422; + }else{ + avctx->pix_fmt = PIX_FMT_YUV422P; + } + break; + case 24: + case 32: + if(s->bgr32){ + avctx->pix_fmt = PIX_FMT_RGB32; + }else{ + avctx->pix_fmt = PIX_FMT_BGR24; + } + break; + default: + assert(0); + } + + alloc_temp(s); + +// av_log(NULL, AV_LOG_DEBUG, "pred:%d bpp:%d hbpp:%d il:%d\n", s->predictor, s->bitstream_bpp, avctx->bits_per_sample, s->interlaced); + + return 0; +} +#endif + +#ifdef CONFIG_ENCODERS +static int store_table(HYuvContext *s, 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++; + + assert(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 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 + s->version=2; + + avctx->coded_frame= &s->picture; + + switch(avctx->pix_fmt){ + case PIX_FMT_YUV420P: + s->bitstream_bpp= 12; + break; + case PIX_FMT_YUV422P: + s->bitstream_bpp= 16; + break; + case PIX_FMT_RGB32: + s->bitstream_bpp= 24; + break; + default: + av_log(avctx, AV_LOG_ERROR, "format not supported\n"); + return -1; + } + avctx->bits_per_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 -1; + } + }else s->context= 0; + + if(avctx->codec->id==CODEC_ID_HUFFYUV){ + if(avctx->pix_fmt==PIX_FMT_YUV420P){ + av_log(avctx, AV_LOG_ERROR, "Error: YV12 is not supported by huffyuv; use vcodec=ffvhuff or format=422p\n"); + return -1; + } + 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 -1; + } + 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 -1; + } + + ((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++){ + generate_len_table(s->len[i], s->stats[i], 256); + + 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; + } + +// printf("pred:%d bpp:%d hbpp:%d il:%d\n", s->predictor, s->bitstream_bpp, avctx->bits_per_sample, s->interlaced); + + alloc_temp(s); + + s->picture_number=0; + + return 0; +} +#endif /* CONFIG_ENCODERS */ + +/* 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; + + 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; + + for(i=0; i<count; i++){ + READ_2PIX(s->temp[0][2*i ], s->temp[0][2*i+1], 0); + } +} + +#ifdef CONFIG_ENCODERS +static int encode_422_bitstream(HYuvContext *s, int count){ + int i; + + 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 = s->temp[0][2*i];\ + int y1 = s->temp[0][2*i+1];\ + int u0 = s->temp[1][i];\ + int v0 = s->temp[2][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_ENCODERS */ + +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) + 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 int encode_bgr_bitstream(HYuvContext *s, int count){ + int i; + + if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < 3*4*count){ + av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n"); + return -1; + } + +#define LOAD3\ + int g= s->temp[0][4*i+G];\ + int b= (s->temp[0][4*i+B] - g) & 0xff;\ + int r= (s->temp[0][4*i+R] - g) & 0xff; +#define STAT3\ + s->stats[0][b]++;\ + s->stats[1][g]++;\ + s->stats[2][r]++; +#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((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; +} + +#ifdef CONFIG_DECODERS +static void draw_slice(HYuvContext *s, int y){ + int h, cy; + int offset[4]; + + 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; + offset[3] = 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 *data_size, const uint8_t *buf, int buf_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; + + AVFrame *picture = data; + + s->bitstream_buffer= av_fast_realloc(s->bitstream_buffer, &s->bitstream_buffer_size, buf_size + FF_INPUT_BUFFER_PADDING_SIZE); + + s->dsp.bswap_buf((uint32_t*)s->bitstream_buffer, (const uint32_t*)buf, buf_size/4); + + if(p->data[0]) + avctx->release_buffer(avctx, p); + + p->reference= 0; + if(avctx->get_buffer(avctx, p) < 0){ + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return -1; + } + + if(s->context){ + table_size = read_huffman_tables(s, s->bitstream_buffer, buf_size); + if(table_size < 0) + return -1; + } + + if((unsigned)(buf_size-table_size) >= INT_MAX/8) + return -1; + + 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 -1; + }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= add_left_prediction(p->data[0] + 2, s->temp[0], width-2, lefty); + if(!(s->flags&CODEC_FLAG_GRAY)){ + leftu= add_left_prediction(p->data[1] + 1, s->temp[1], width2-1, leftu); + leftv= add_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= add_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= add_left_prediction(ydst, s->temp[0], width, lefty); + if(!(s->flags&CODEC_FLAG_GRAY)){ + leftu= add_left_prediction(udst, s->temp[1], width2, leftu); + leftv= add_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= add_left_prediction(p->data[0] + 2, s->temp[0], width-2, lefty); + if(!(s->flags&CODEC_FLAG_GRAY)){ + leftu= add_left_prediction(p->data[1] + 1, s->temp[1], width2-1, leftu); + leftv= add_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= add_left_prediction(p->data[0] + p->linesize[0], s->temp[0], width, lefty); + if(!(s->flags&CODEC_FLAG_GRAY)){ + leftu= add_left_prediction(p->data[1] + p->linesize[2], s->temp[1], width2, leftu); + leftv= add_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= add_left_prediction(p->data[0] + fake_ystride, s->temp[0], 4, lefty); + if(!(s->flags&CODEC_FLAG_GRAY)){ + leftu= add_left_prediction(p->data[1] + fake_ustride, s->temp[1], 2, leftu); + leftv= add_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); + add_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]; + add_median_prediction(p->data[1] + fake_ustride+2, p->data[1]+2, s->temp[1], width2-2, &leftu, &lefttopu); + add_median_prediction(p->data[2] + fake_vstride+2, p->data[2]+2, s->temp[2], width2-2, &leftv, &lefttopv); + } + y++; cy++; + + for(; y<height; y++,cy++){ + uint8_t *ydst, *udst, *vdst; + + if(s->bitstream_bpp==12){ + while(2*cy > y){ + decode_gray_bitstream(s, width); + ydst= p->data[0] + p->linesize[0]*y; + add_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; + + add_median_prediction(ydst, ydst - fake_ystride, s->temp[0], width, &lefty, &lefttopy); + if(!(s->flags&CODEC_FLAG_GRAY)){ + add_median_prediction(udst, udst - fake_ustride, s->temp[1], width2, &leftu, &lefttopu); + add_median_prediction(vdst, vdst - fake_vstride, s->temp[2], width2, &leftv, &lefttopv); + } + } + + draw_slice(s, height); + break; + } + } + }else{ + int y; + int leftr, leftg, leftb; + const int last_line= (height-1)*p->linesize[0]; + + if(s->bitstream_bpp==32){ + skip_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); + skip_bits(&s->gb, 8); + } + + if(s->bgr32){ + switch(s->predictor){ + case LEFT: + case PLANE: + decode_bgr_bitstream(s, width-1); + add_left_prediction_bgr32(p->data[0] + last_line+4, s->temp[0], width-1, &leftr, &leftg, &leftb); + + for(y=s->height-2; y>=0; y--){ //Yes it is stored upside down. + decode_bgr_bitstream(s, width); + + add_left_prediction_bgr32(p->data[0] + p->linesize[0]*y, s->temp[0], width, &leftr, &leftg, &leftb); + if(s->predictor == PLANE){ + 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); + } + } + } + draw_slice(s, height); // just 1 large slice as this is not possible in reverse order + 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 -1; + } + } + emms_c(); + + *picture= *p; + *data_size = sizeof(AVFrame); + + return (get_bits_count(&s->gb)+31)/32*4 + table_size; +} +#endif + +static int common_end(HYuvContext *s){ + int i; + + for(i=0; i<3; i++){ + av_freep(&s->temp[i]); + } + return 0; +} + +#ifdef CONFIG_DECODERS +static int decode_end(AVCodecContext *avctx) +{ + HYuvContext *s = avctx->priv_data; + int i; + + common_end(s); + av_freep(&s->bitstream_buffer); + + for(i=0; i<6; i++){ + free_vlc(&s->vlc[i]); + } + + return 0; +} +#endif + +#ifdef CONFIG_ENCODERS +static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){ + HYuvContext *s = avctx->priv_data; + AVFrame *pict = 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; + + *p = *pict; + p->pict_type= FF_I_TYPE; + p->key_frame= 1; + + if(s->context){ + for(i=0; i<3; i++){ + generate_len_table(s->len[i], s->stats[i], 256); + if(generate_bits_table(s->bits[i], s->len[i])<0) + return -1; + size+= store_table(s, s->len[i], &buf[size]); + } + + for(i=0; i<3; i++) + for(j=0; j<256; j++) + s->stats[i][j] >>= 1; + } + + init_put_bits(&s->pb, buf+size, buf_size-size); + + if(avctx->pix_fmt == PIX_FMT_YUV422P || avctx->pix_fmt == 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]+2, width-2 , lefty); + leftu= sub_left_prediction(s, s->temp[1], p->data[1]+1, width2-1, leftu); + leftv= sub_left_prediction(s, s->temp[2], p->data[2]+1, width2-1, leftv); + + encode_422_bitstream(s, 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, 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, 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, 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, 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, width); + } + } + }else if(avctx->pix_fmt == 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; + + put_bits(&s->pb, 8, leftr= data[R]); + put_bits(&s->pb, 8, leftg= data[G]); + put_bits(&s->pb, 8, leftb= data[B]); + put_bits(&s->pb, 8, 0); + + sub_left_prediction_bgr32(s, s->temp[0], data+4, width-1, &leftr, &leftg, &leftb); + encode_bgr_bitstream(s, width-1); + + 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); + }else{ + sub_left_prediction_bgr32(s, s->temp[0], dst, width, &leftr, &leftg, &leftb); + } + encode_bgr_bitstream(s, width); + } + }else{ + av_log(avctx, AV_LOG_ERROR, "Format not supported!\n"); + } + emms_c(); + + size+= (put_bits_count(&s->pb)+31)/8; + 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*)buf, (uint32_t*)buf, size); + } + + s->picture_number++; + + return size*4; +} + +static 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_ENCODERS */ + +#ifdef CONFIG_DECODERS +AVCodec huffyuv_decoder = { + "huffyuv", + CODEC_TYPE_VIDEO, + CODEC_ID_HUFFYUV, + sizeof(HYuvContext), + decode_init, + NULL, + decode_end, + decode_frame, + CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND, + NULL +}; + +AVCodec ffvhuff_decoder = { + "ffvhuff", + CODEC_TYPE_VIDEO, + CODEC_ID_FFVHUFF, + sizeof(HYuvContext), + decode_init, + NULL, + decode_end, + decode_frame, + CODEC_CAP_DR1 | CODEC_CAP_DRAW_HORIZ_BAND, + NULL +}; +#endif + +#ifdef CONFIG_ENCODERS + +AVCodec huffyuv_encoder = { + "huffyuv", + CODEC_TYPE_VIDEO, + CODEC_ID_HUFFYUV, + sizeof(HYuvContext), + encode_init, + encode_frame, + encode_end, + .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV422P, PIX_FMT_RGB32, -1}, +}; + +AVCodec ffvhuff_encoder = { + "ffvhuff", + CODEC_TYPE_VIDEO, + CODEC_ID_FFVHUFF, + sizeof(HYuvContext), + encode_init, + encode_frame, + encode_end, + .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_RGB32, -1}, +}; + +#endif //CONFIG_ENCODERS |