diff options
Diffstat (limited to 'contrib/ffmpeg/libavcodec/asv1.c')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/asv1.c | 655 |
1 files changed, 655 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/asv1.c b/contrib/ffmpeg/libavcodec/asv1.c new file mode 100644 index 000000000..ec6bbb9ba --- /dev/null +++ b/contrib/ffmpeg/libavcodec/asv1.c @@ -0,0 +1,655 @@ +/* + * ASUS V1/V2 codec + * Copyright (c) 2003 Michael Niedermayer + * + * 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 asv1.c + * ASUS V1/V2 codec. + */ + +#include "avcodec.h" +#include "dsputil.h" +#include "mpegvideo.h" + +//#undef NDEBUG +//#include <assert.h> + +#define VLC_BITS 6 +#define ASV2_LEVEL_VLC_BITS 10 + +typedef struct ASV1Context{ + AVCodecContext *avctx; + DSPContext dsp; + AVFrame picture; + PutBitContext pb; + GetBitContext gb; + ScanTable scantable; + int inv_qscale; + int mb_width; + int mb_height; + int mb_width2; + int mb_height2; + DECLARE_ALIGNED_8(DCTELEM, block[6][64]); + DECLARE_ALIGNED_8(uint16_t, intra_matrix[64]); + DECLARE_ALIGNED_8(int, q_intra_matrix[64]); + uint8_t *bitstream_buffer; + unsigned int bitstream_buffer_size; +} ASV1Context; + +static const uint8_t scantab[64]={ + 0x00,0x08,0x01,0x09,0x10,0x18,0x11,0x19, + 0x02,0x0A,0x03,0x0B,0x12,0x1A,0x13,0x1B, + 0x04,0x0C,0x05,0x0D,0x20,0x28,0x21,0x29, + 0x06,0x0E,0x07,0x0F,0x14,0x1C,0x15,0x1D, + 0x22,0x2A,0x23,0x2B,0x30,0x38,0x31,0x39, + 0x16,0x1E,0x17,0x1F,0x24,0x2C,0x25,0x2D, + 0x32,0x3A,0x33,0x3B,0x26,0x2E,0x27,0x2F, + 0x34,0x3C,0x35,0x3D,0x36,0x3E,0x37,0x3F, +}; + + +static const uint8_t ccp_tab[17][2]={ + {0x2,2}, {0x7,5}, {0xB,5}, {0x3,5}, + {0xD,5}, {0x5,5}, {0x9,5}, {0x1,5}, + {0xE,5}, {0x6,5}, {0xA,5}, {0x2,5}, + {0xC,5}, {0x4,5}, {0x8,5}, {0x3,2}, + {0xF,5}, //EOB +}; + +static const uint8_t level_tab[7][2]={ + {3,4}, {3,3}, {3,2}, {0,3}, {2,2}, {2,3}, {2,4} +}; + +static const uint8_t dc_ccp_tab[8][2]={ + {0x1,2}, {0xD,4}, {0xF,4}, {0xC,4}, + {0x5,3}, {0xE,4}, {0x4,3}, {0x0,2}, +}; + +static const uint8_t ac_ccp_tab[16][2]={ + {0x00,2}, {0x3B,6}, {0x0A,4}, {0x3A,6}, + {0x02,3}, {0x39,6}, {0x3C,6}, {0x38,6}, + {0x03,3}, {0x3D,6}, {0x08,4}, {0x1F,5}, + {0x09,4}, {0x0B,4}, {0x0D,4}, {0x0C,4}, +}; + +static const uint8_t asv2_level_tab[63][2]={ + {0x3F,10},{0x2F,10},{0x37,10},{0x27,10},{0x3B,10},{0x2B,10},{0x33,10},{0x23,10}, + {0x3D,10},{0x2D,10},{0x35,10},{0x25,10},{0x39,10},{0x29,10},{0x31,10},{0x21,10}, + {0x1F, 8},{0x17, 8},{0x1B, 8},{0x13, 8},{0x1D, 8},{0x15, 8},{0x19, 8},{0x11, 8}, + {0x0F, 6},{0x0B, 6},{0x0D, 6},{0x09, 6}, + {0x07, 4},{0x05, 4}, + {0x03, 2}, + {0x00, 5}, + {0x02, 2}, + {0x04, 4},{0x06, 4}, + {0x08, 6},{0x0C, 6},{0x0A, 6},{0x0E, 6}, + {0x10, 8},{0x18, 8},{0x14, 8},{0x1C, 8},{0x12, 8},{0x1A, 8},{0x16, 8},{0x1E, 8}, + {0x20,10},{0x30,10},{0x28,10},{0x38,10},{0x24,10},{0x34,10},{0x2C,10},{0x3C,10}, + {0x22,10},{0x32,10},{0x2A,10},{0x3A,10},{0x26,10},{0x36,10},{0x2E,10},{0x3E,10}, +}; + + +static VLC ccp_vlc; +static VLC level_vlc; +static VLC dc_ccp_vlc; +static VLC ac_ccp_vlc; +static VLC asv2_level_vlc; + +static void init_vlcs(ASV1Context *a){ + static int done = 0; + + if (!done) { + done = 1; + + init_vlc(&ccp_vlc, VLC_BITS, 17, + &ccp_tab[0][1], 2, 1, + &ccp_tab[0][0], 2, 1, 1); + init_vlc(&dc_ccp_vlc, VLC_BITS, 8, + &dc_ccp_tab[0][1], 2, 1, + &dc_ccp_tab[0][0], 2, 1, 1); + init_vlc(&ac_ccp_vlc, VLC_BITS, 16, + &ac_ccp_tab[0][1], 2, 1, + &ac_ccp_tab[0][0], 2, 1, 1); + init_vlc(&level_vlc, VLC_BITS, 7, + &level_tab[0][1], 2, 1, + &level_tab[0][0], 2, 1, 1); + init_vlc(&asv2_level_vlc, ASV2_LEVEL_VLC_BITS, 63, + &asv2_level_tab[0][1], 2, 1, + &asv2_level_tab[0][0], 2, 1, 1); + } +} + +//FIXME write a reversed bitstream reader to avoid the double reverse +static inline int asv2_get_bits(GetBitContext *gb, int n){ + return ff_reverse[ get_bits(gb, n) << (8-n) ]; +} + +static inline void asv2_put_bits(PutBitContext *pb, int n, int v){ + put_bits(pb, n, ff_reverse[ v << (8-n) ]); +} + +static inline int asv1_get_level(GetBitContext *gb){ + int code= get_vlc2(gb, level_vlc.table, VLC_BITS, 1); + + if(code==3) return get_sbits(gb, 8); + else return code - 3; +} + +static inline int asv2_get_level(GetBitContext *gb){ + int code= get_vlc2(gb, asv2_level_vlc.table, ASV2_LEVEL_VLC_BITS, 1); + + if(code==31) return (int8_t)asv2_get_bits(gb, 8); + else return code - 31; +} + +static inline void asv1_put_level(PutBitContext *pb, int level){ + unsigned int index= level + 3; + + if(index <= 6) put_bits(pb, level_tab[index][1], level_tab[index][0]); + else{ + put_bits(pb, level_tab[3][1], level_tab[3][0]); + put_bits(pb, 8, level&0xFF); + } +} + +static inline void asv2_put_level(PutBitContext *pb, int level){ + unsigned int index= level + 31; + + if(index <= 62) put_bits(pb, asv2_level_tab[index][1], asv2_level_tab[index][0]); + else{ + put_bits(pb, asv2_level_tab[31][1], asv2_level_tab[31][0]); + asv2_put_bits(pb, 8, level&0xFF); + } +} + +static inline int asv1_decode_block(ASV1Context *a, DCTELEM block[64]){ + int i; + + block[0]= 8*get_bits(&a->gb, 8); + + for(i=0; i<11; i++){ + const int ccp= get_vlc2(&a->gb, ccp_vlc.table, VLC_BITS, 1); + + if(ccp){ + if(ccp == 16) break; + if(ccp < 0 || i>=10){ + av_log(a->avctx, AV_LOG_ERROR, "coded coeff pattern damaged\n"); + return -1; + } + + if(ccp&8) block[a->scantable.permutated[4*i+0]]= (asv1_get_level(&a->gb) * a->intra_matrix[4*i+0])>>4; + if(ccp&4) block[a->scantable.permutated[4*i+1]]= (asv1_get_level(&a->gb) * a->intra_matrix[4*i+1])>>4; + if(ccp&2) block[a->scantable.permutated[4*i+2]]= (asv1_get_level(&a->gb) * a->intra_matrix[4*i+2])>>4; + if(ccp&1) block[a->scantable.permutated[4*i+3]]= (asv1_get_level(&a->gb) * a->intra_matrix[4*i+3])>>4; + } + } + + return 0; +} + +static inline int asv2_decode_block(ASV1Context *a, DCTELEM block[64]){ + int i, count, ccp; + + count= asv2_get_bits(&a->gb, 4); + + block[0]= 8*asv2_get_bits(&a->gb, 8); + + ccp= get_vlc2(&a->gb, dc_ccp_vlc.table, VLC_BITS, 1); + if(ccp){ + if(ccp&4) block[a->scantable.permutated[1]]= (asv2_get_level(&a->gb) * a->intra_matrix[1])>>4; + if(ccp&2) block[a->scantable.permutated[2]]= (asv2_get_level(&a->gb) * a->intra_matrix[2])>>4; + if(ccp&1) block[a->scantable.permutated[3]]= (asv2_get_level(&a->gb) * a->intra_matrix[3])>>4; + } + + for(i=1; i<count+1; i++){ + const int ccp= get_vlc2(&a->gb, ac_ccp_vlc.table, VLC_BITS, 1); + + if(ccp){ + if(ccp&8) block[a->scantable.permutated[4*i+0]]= (asv2_get_level(&a->gb) * a->intra_matrix[4*i+0])>>4; + if(ccp&4) block[a->scantable.permutated[4*i+1]]= (asv2_get_level(&a->gb) * a->intra_matrix[4*i+1])>>4; + if(ccp&2) block[a->scantable.permutated[4*i+2]]= (asv2_get_level(&a->gb) * a->intra_matrix[4*i+2])>>4; + if(ccp&1) block[a->scantable.permutated[4*i+3]]= (asv2_get_level(&a->gb) * a->intra_matrix[4*i+3])>>4; + } + } + + return 0; +} + +static inline void asv1_encode_block(ASV1Context *a, DCTELEM block[64]){ + int i; + int nc_count=0; + + put_bits(&a->pb, 8, (block[0] + 32)>>6); + block[0]= 0; + + for(i=0; i<10; i++){ + const int index= scantab[4*i]; + int ccp=0; + + if( (block[index + 0] = (block[index + 0]*a->q_intra_matrix[index + 0] + (1<<15))>>16) ) ccp |= 8; + if( (block[index + 8] = (block[index + 8]*a->q_intra_matrix[index + 8] + (1<<15))>>16) ) ccp |= 4; + if( (block[index + 1] = (block[index + 1]*a->q_intra_matrix[index + 1] + (1<<15))>>16) ) ccp |= 2; + if( (block[index + 9] = (block[index + 9]*a->q_intra_matrix[index + 9] + (1<<15))>>16) ) ccp |= 1; + + if(ccp){ + for(;nc_count; nc_count--) + put_bits(&a->pb, ccp_tab[0][1], ccp_tab[0][0]); + + put_bits(&a->pb, ccp_tab[ccp][1], ccp_tab[ccp][0]); + + if(ccp&8) asv1_put_level(&a->pb, block[index + 0]); + if(ccp&4) asv1_put_level(&a->pb, block[index + 8]); + if(ccp&2) asv1_put_level(&a->pb, block[index + 1]); + if(ccp&1) asv1_put_level(&a->pb, block[index + 9]); + }else{ + nc_count++; + } + } + put_bits(&a->pb, ccp_tab[16][1], ccp_tab[16][0]); +} + +static inline void asv2_encode_block(ASV1Context *a, DCTELEM block[64]){ + int i; + int count=0; + + for(count=63; count>3; count--){ + const int index= scantab[count]; + + if( (block[index]*a->q_intra_matrix[index] + (1<<15))>>16 ) + break; + } + + count >>= 2; + + asv2_put_bits(&a->pb, 4, count); + asv2_put_bits(&a->pb, 8, (block[0] + 32)>>6); + block[0]= 0; + + for(i=0; i<=count; i++){ + const int index= scantab[4*i]; + int ccp=0; + + if( (block[index + 0] = (block[index + 0]*a->q_intra_matrix[index + 0] + (1<<15))>>16) ) ccp |= 8; + if( (block[index + 8] = (block[index + 8]*a->q_intra_matrix[index + 8] + (1<<15))>>16) ) ccp |= 4; + if( (block[index + 1] = (block[index + 1]*a->q_intra_matrix[index + 1] + (1<<15))>>16) ) ccp |= 2; + if( (block[index + 9] = (block[index + 9]*a->q_intra_matrix[index + 9] + (1<<15))>>16) ) ccp |= 1; + + assert(i || ccp<8); + if(i) put_bits(&a->pb, ac_ccp_tab[ccp][1], ac_ccp_tab[ccp][0]); + else put_bits(&a->pb, dc_ccp_tab[ccp][1], dc_ccp_tab[ccp][0]); + + if(ccp){ + if(ccp&8) asv2_put_level(&a->pb, block[index + 0]); + if(ccp&4) asv2_put_level(&a->pb, block[index + 8]); + if(ccp&2) asv2_put_level(&a->pb, block[index + 1]); + if(ccp&1) asv2_put_level(&a->pb, block[index + 9]); + } + } +} + +static inline int decode_mb(ASV1Context *a, DCTELEM block[6][64]){ + int i; + + a->dsp.clear_blocks(block[0]); + + if(a->avctx->codec_id == CODEC_ID_ASV1){ + for(i=0; i<6; i++){ + if( asv1_decode_block(a, block[i]) < 0) + return -1; + } + }else{ + for(i=0; i<6; i++){ + if( asv2_decode_block(a, block[i]) < 0) + return -1; + } + } + return 0; +} + +static inline int encode_mb(ASV1Context *a, DCTELEM block[6][64]){ + int i; + + if(a->pb.buf_end - a->pb.buf - (put_bits_count(&a->pb)>>3) < 30*16*16*3/2/8){ + av_log(a->avctx, AV_LOG_ERROR, "encoded frame too large\n"); + return -1; + } + + if(a->avctx->codec_id == CODEC_ID_ASV1){ + for(i=0; i<6; i++) + asv1_encode_block(a, block[i]); + }else{ + for(i=0; i<6; i++) + asv2_encode_block(a, block[i]); + } + return 0; +} + +static inline void idct_put(ASV1Context *a, int mb_x, int mb_y){ + DCTELEM (*block)[64]= a->block; + int linesize= a->picture.linesize[0]; + + uint8_t *dest_y = a->picture.data[0] + (mb_y * 16* linesize ) + mb_x * 16; + uint8_t *dest_cb = a->picture.data[1] + (mb_y * 8 * a->picture.linesize[1]) + mb_x * 8; + uint8_t *dest_cr = a->picture.data[2] + (mb_y * 8 * a->picture.linesize[2]) + mb_x * 8; + + a->dsp.idct_put(dest_y , linesize, block[0]); + a->dsp.idct_put(dest_y + 8, linesize, block[1]); + a->dsp.idct_put(dest_y + 8*linesize , linesize, block[2]); + a->dsp.idct_put(dest_y + 8*linesize + 8, linesize, block[3]); + + if(!(a->avctx->flags&CODEC_FLAG_GRAY)){ + a->dsp.idct_put(dest_cb, a->picture.linesize[1], block[4]); + a->dsp.idct_put(dest_cr, a->picture.linesize[2], block[5]); + } +} + +static inline void dct_get(ASV1Context *a, int mb_x, int mb_y){ + DCTELEM (*block)[64]= a->block; + int linesize= a->picture.linesize[0]; + int i; + + uint8_t *ptr_y = a->picture.data[0] + (mb_y * 16* linesize ) + mb_x * 16; + uint8_t *ptr_cb = a->picture.data[1] + (mb_y * 8 * a->picture.linesize[1]) + mb_x * 8; + uint8_t *ptr_cr = a->picture.data[2] + (mb_y * 8 * a->picture.linesize[2]) + mb_x * 8; + + a->dsp.get_pixels(block[0], ptr_y , linesize); + a->dsp.get_pixels(block[1], ptr_y + 8, linesize); + a->dsp.get_pixels(block[2], ptr_y + 8*linesize , linesize); + a->dsp.get_pixels(block[3], ptr_y + 8*linesize + 8, linesize); + for(i=0; i<4; i++) + a->dsp.fdct(block[i]); + + if(!(a->avctx->flags&CODEC_FLAG_GRAY)){ + a->dsp.get_pixels(block[4], ptr_cb, a->picture.linesize[1]); + a->dsp.get_pixels(block[5], ptr_cr, a->picture.linesize[2]); + for(i=4; i<6; i++) + a->dsp.fdct(block[i]); + } +} + +static int decode_frame(AVCodecContext *avctx, + void *data, int *data_size, + uint8_t *buf, int buf_size) +{ + ASV1Context * const a = avctx->priv_data; + AVFrame *picture = data; + AVFrame * const p= (AVFrame*)&a->picture; + int mb_x, mb_y; + + 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; + } + p->pict_type= I_TYPE; + p->key_frame= 1; + + a->bitstream_buffer= av_fast_realloc(a->bitstream_buffer, &a->bitstream_buffer_size, buf_size + FF_INPUT_BUFFER_PADDING_SIZE); + + if(avctx->codec_id == CODEC_ID_ASV1) + a->dsp.bswap_buf((uint32_t*)a->bitstream_buffer, (uint32_t*)buf, buf_size/4); + else{ + int i; + for(i=0; i<buf_size; i++) + a->bitstream_buffer[i]= ff_reverse[ buf[i] ]; + } + + init_get_bits(&a->gb, a->bitstream_buffer, buf_size*8); + + for(mb_y=0; mb_y<a->mb_height2; mb_y++){ + for(mb_x=0; mb_x<a->mb_width2; mb_x++){ + if( decode_mb(a, a->block) <0) + return -1; + + idct_put(a, mb_x, mb_y); + } + } + + if(a->mb_width2 != a->mb_width){ + mb_x= a->mb_width2; + for(mb_y=0; mb_y<a->mb_height2; mb_y++){ + if( decode_mb(a, a->block) <0) + return -1; + + idct_put(a, mb_x, mb_y); + } + } + + if(a->mb_height2 != a->mb_height){ + mb_y= a->mb_height2; + for(mb_x=0; mb_x<a->mb_width; mb_x++){ + if( decode_mb(a, a->block) <0) + return -1; + + idct_put(a, mb_x, mb_y); + } + } +#if 0 +int i; +printf("%d %d\n", 8*buf_size, get_bits_count(&a->gb)); +for(i=get_bits_count(&a->gb); i<8*buf_size; i++){ + printf("%d", get_bits1(&a->gb)); +} + +for(i=0; i<s->avctx->extradata_size; i++){ + printf("%c\n", ((uint8_t*)s->avctx->extradata)[i]); +} +#endif + + *picture= *(AVFrame*)&a->picture; + *data_size = sizeof(AVPicture); + + emms_c(); + + return (get_bits_count(&a->gb)+31)/32*4; +} + +#ifdef CONFIG_ENCODERS +static int encode_frame(AVCodecContext *avctx, unsigned char *buf, int buf_size, void *data){ + ASV1Context * const a = avctx->priv_data; + AVFrame *pict = data; + AVFrame * const p= (AVFrame*)&a->picture; + int size; + int mb_x, mb_y; + + init_put_bits(&a->pb, buf, buf_size); + + *p = *pict; + p->pict_type= I_TYPE; + p->key_frame= 1; + + for(mb_y=0; mb_y<a->mb_height2; mb_y++){ + for(mb_x=0; mb_x<a->mb_width2; mb_x++){ + dct_get(a, mb_x, mb_y); + encode_mb(a, a->block); + } + } + + if(a->mb_width2 != a->mb_width){ + mb_x= a->mb_width2; + for(mb_y=0; mb_y<a->mb_height2; mb_y++){ + dct_get(a, mb_x, mb_y); + encode_mb(a, a->block); + } + } + + if(a->mb_height2 != a->mb_height){ + mb_y= a->mb_height2; + for(mb_x=0; mb_x<a->mb_width; mb_x++){ + dct_get(a, mb_x, mb_y); + encode_mb(a, a->block); + } + } + emms_c(); + + align_put_bits(&a->pb); + while(put_bits_count(&a->pb)&31) + put_bits(&a->pb, 8, 0); + + size= put_bits_count(&a->pb)/32; + + if(avctx->codec_id == CODEC_ID_ASV1) + a->dsp.bswap_buf((uint32_t*)buf, (uint32_t*)buf, size); + else{ + int i; + for(i=0; i<4*size; i++) + buf[i]= ff_reverse[ buf[i] ]; + } + + return size*4; +} +#endif /* CONFIG_ENCODERS */ + +static void common_init(AVCodecContext *avctx){ + ASV1Context * const a = avctx->priv_data; + + dsputil_init(&a->dsp, avctx); + + a->mb_width = (avctx->width + 15) / 16; + a->mb_height = (avctx->height + 15) / 16; + a->mb_width2 = (avctx->width + 0) / 16; + a->mb_height2 = (avctx->height + 0) / 16; + + avctx->coded_frame= (AVFrame*)&a->picture; + a->avctx= avctx; +} + +static int decode_init(AVCodecContext *avctx){ + ASV1Context * const a = avctx->priv_data; + AVFrame *p= (AVFrame*)&a->picture; + int i; + const int scale= avctx->codec_id == CODEC_ID_ASV1 ? 1 : 2; + + common_init(avctx); + init_vlcs(a); + ff_init_scantable(a->dsp.idct_permutation, &a->scantable, scantab); + avctx->pix_fmt= PIX_FMT_YUV420P; + + a->inv_qscale= ((uint8_t*)avctx->extradata)[0]; + if(a->inv_qscale == 0){ + av_log(avctx, AV_LOG_ERROR, "illegal qscale 0\n"); + if(avctx->codec_id == CODEC_ID_ASV1) + a->inv_qscale= 6; + else + a->inv_qscale= 10; + } + + for(i=0; i<64; i++){ + int index= scantab[i]; + + a->intra_matrix[i]= 64*scale*ff_mpeg1_default_intra_matrix[index] / a->inv_qscale; + } + + p->qstride= a->mb_width; + p->qscale_table= av_malloc( p->qstride * a->mb_height); + p->quality= (32*scale + a->inv_qscale/2)/a->inv_qscale; + memset(p->qscale_table, p->quality, p->qstride*a->mb_height); + + return 0; +} + +#ifdef CONFIG_ENCODERS +static int encode_init(AVCodecContext *avctx){ + ASV1Context * const a = avctx->priv_data; + int i; + const int scale= avctx->codec_id == CODEC_ID_ASV1 ? 1 : 2; + + common_init(avctx); + + if(avctx->global_quality == 0) avctx->global_quality= 4*FF_QUALITY_SCALE; + + a->inv_qscale= (32*scale*FF_QUALITY_SCALE + avctx->global_quality/2) / avctx->global_quality; + + avctx->extradata= av_mallocz(8); + avctx->extradata_size=8; + ((uint32_t*)avctx->extradata)[0]= le2me_32(a->inv_qscale); + ((uint32_t*)avctx->extradata)[1]= le2me_32(ff_get_fourcc("ASUS")); + + for(i=0; i<64; i++){ + int q= 32*scale*ff_mpeg1_default_intra_matrix[i]; + a->q_intra_matrix[i]= ((a->inv_qscale<<16) + q/2) / q; + } + + return 0; +} +#endif + +static int decode_end(AVCodecContext *avctx){ + ASV1Context * const a = avctx->priv_data; + + av_freep(&a->bitstream_buffer); + av_freep(&a->picture.qscale_table); + a->bitstream_buffer_size=0; + + return 0; +} + +AVCodec asv1_decoder = { + "asv1", + CODEC_TYPE_VIDEO, + CODEC_ID_ASV1, + sizeof(ASV1Context), + decode_init, + NULL, + decode_end, + decode_frame, + CODEC_CAP_DR1, +}; + +AVCodec asv2_decoder = { + "asv2", + CODEC_TYPE_VIDEO, + CODEC_ID_ASV2, + sizeof(ASV1Context), + decode_init, + NULL, + decode_end, + decode_frame, + CODEC_CAP_DR1, +}; + +#ifdef CONFIG_ENCODERS + +AVCodec asv1_encoder = { + "asv1", + CODEC_TYPE_VIDEO, + CODEC_ID_ASV1, + sizeof(ASV1Context), + encode_init, + encode_frame, + //encode_end, + .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1}, +}; + +AVCodec asv2_encoder = { + "asv2", + CODEC_TYPE_VIDEO, + CODEC_ID_ASV2, + sizeof(ASV1Context), + encode_init, + encode_frame, + //encode_end, + .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1}, +}; + +#endif //CONFIG_ENCODERS |