From c3a76c3decc7ee9439609fcf3fd405cccfb0bcff Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Wed, 14 Nov 2012 14:49:44 +0100 Subject: asvdec: cosmetics, reformat --- libavcodec/asvdec.c | 230 +++++++++++++++++++++++++++++----------------------- 1 file changed, 128 insertions(+), 102 deletions(-) (limited to 'libavcodec/asvdec.c') diff --git a/libavcodec/asvdec.c b/libavcodec/asvdec.c index a53ba77fc5..16722a9192 100644 --- a/libavcodec/asvdec.c +++ b/libavcodec/asvdec.c @@ -46,124 +46,148 @@ static VLC dc_ccp_vlc; static VLC ac_ccp_vlc; static VLC asv2_level_vlc; -static av_cold void init_vlcs(ASV1Context *a){ +static av_cold void init_vlcs(ASV1Context *a) +{ static int done = 0; if (!done) { done = 1; INIT_VLC_STATIC(&ccp_vlc, VLC_BITS, 17, - &ff_asv_ccp_tab[0][1], 2, 1, - &ff_asv_ccp_tab[0][0], 2, 1, 64); + &ff_asv_ccp_tab[0][1], 2, 1, + &ff_asv_ccp_tab[0][0], 2, 1, 64); INIT_VLC_STATIC(&dc_ccp_vlc, VLC_BITS, 8, - &ff_asv_dc_ccp_tab[0][1], 2, 1, - &ff_asv_dc_ccp_tab[0][0], 2, 1, 64); + &ff_asv_dc_ccp_tab[0][1], 2, 1, + &ff_asv_dc_ccp_tab[0][0], 2, 1, 64); INIT_VLC_STATIC(&ac_ccp_vlc, VLC_BITS, 16, - &ff_asv_ac_ccp_tab[0][1], 2, 1, - &ff_asv_ac_ccp_tab[0][0], 2, 1, 64); + &ff_asv_ac_ccp_tab[0][1], 2, 1, + &ff_asv_ac_ccp_tab[0][0], 2, 1, 64); INIT_VLC_STATIC(&level_vlc, VLC_BITS, 7, - &ff_asv_level_tab[0][1], 2, 1, - &ff_asv_level_tab[0][0], 2, 1, 64); + &ff_asv_level_tab[0][1], 2, 1, + &ff_asv_level_tab[0][0], 2, 1, 64); INIT_VLC_STATIC(&asv2_level_vlc, ASV2_LEVEL_VLC_BITS, 63, - &ff_asv2_level_tab[0][1], 2, 1, - &ff_asv2_level_tab[0][0], 2, 1, 1024); + &ff_asv2_level_tab[0][1], 2, 1, + &ff_asv2_level_tab[0][0], 2, 1, 1024); } } //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 int asv2_get_bits(GetBitContext *gb, int n) +{ + return ff_reverse[get_bits(gb, n) << (8-n)]; } -static inline int asv1_get_level(GetBitContext *gb){ - int code= get_vlc2(gb, level_vlc.table, VLC_BITS, 1); +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; + 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); +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; + if (code == 31) + return (int8_t)asv2_get_bits(gb, 8); + else + return code - 31; } -static inline int asv1_decode_block(ASV1Context *a, DCTELEM block[64]){ +static inline int asv1_decode_block(ASV1Context *a, DCTELEM block[64]) +{ int i; - block[0]= 8*get_bits(&a->gb, 8); + 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); + 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){ + 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; + 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]){ +static inline int asv2_decode_block(ASV1Context *a, DCTELEM block[64]) +{ int i, count, ccp; - count= asv2_get_bits(&a->gb, 4); + count = asv2_get_bits(&a->gb, 4); - block[0]= 8*asv2_get_bits(&a->gb, 8); + 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; + 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; igb, 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; + 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 int decode_mb(ASV1Context *a, DCTELEM block[6][64]){ +static inline int decode_mb(ASV1Context *a, DCTELEM block[6][64]) +{ int i; a->dsp.clear_blocks(block[0]); - if(a->avctx->codec_id == AV_CODEC_ID_ASV1){ - for(i=0; i<6; i++){ - if( asv1_decode_block(a, block[i]) < 0) + if (a->avctx->codec_id == AV_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) + } else { + for (i = 0; i < 6; i++) { + if (asv2_decode_block(a, block[i]) < 0) return -1; } } 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]; +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; @@ -174,7 +198,7 @@ static inline void idct_put(ASV1Context *a, int mb_x, int mb_y){ 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)){ + 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]); } @@ -184,62 +208,62 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt) { - const uint8_t *buf = avpkt->data; - int buf_size = avpkt->size; ASV1Context * const a = avctx->priv_data; - AVFrame *picture = data; - AVFrame * const p= &a->picture; + const uint8_t *buf = avpkt->data; + int buf_size = avpkt->size; + AVFrame *picture = data; + AVFrame * const p = &a->picture; int mb_x, mb_y; - if(p->data[0]) + if (p->data[0]) avctx->release_buffer(avctx, p); - p->reference= 0; - if(ff_get_buffer(avctx, p) < 0){ + p->reference = 0; + if (ff_get_buffer(avctx, p) < 0) { av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return -1; } - p->pict_type= AV_PICTURE_TYPE_I; - p->key_frame= 1; + p->pict_type = AV_PICTURE_TYPE_I; + p->key_frame = 1; av_fast_padded_malloc(&a->bitstream_buffer, &a->bitstream_buffer_size, buf_size); if (!a->bitstream_buffer) return AVERROR(ENOMEM); - if(avctx->codec_id == AV_CODEC_ID_ASV1) + if (avctx->codec_id == AV_CODEC_ID_ASV1) a->dsp.bswap_buf((uint32_t*)a->bitstream_buffer, (const uint32_t*)buf, buf_size/4); - else{ + else { int i; - for(i=0; ibitstream_buffer[i]= ff_reverse[ buf[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_ymb_height2; mb_y++){ - for(mb_x=0; mb_xmb_width2; mb_x++){ - if( decode_mb(a, a->block) <0) + 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_ymb_height2; mb_y++){ - if( decode_mb(a, a->block) <0) + 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_xmb_width; mb_x++){ - if( decode_mb(a, a->block) <0) + 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); @@ -251,51 +275,53 @@ static int decode_frame(AVCodecContext *avctx, emms_c(); - return (get_bits_count(&a->gb)+31)/32*4; + return (get_bits_count(&a->gb) + 31) / 32 * 4; } -static av_cold int decode_init(AVCodecContext *avctx){ +static av_cold int decode_init(AVCodecContext *avctx) +{ ASV1Context * const a = avctx->priv_data; - AVFrame *p= &a->picture; + AVFrame *p = &a->picture; + const int scale = avctx->codec_id == AV_CODEC_ID_ASV1 ? 1 : 2; int i; - const int scale= avctx->codec_id == AV_CODEC_ID_ASV1 ? 1 : 2; ff_asv_common_init(avctx); init_vlcs(a); ff_init_scantable(a->dsp.idct_permutation, &a->scantable, ff_asv_scantab); - avctx->pix_fmt= AV_PIX_FMT_YUV420P; + avctx->pix_fmt = AV_PIX_FMT_YUV420P; - a->inv_qscale= avctx->extradata[0]; - if(a->inv_qscale == 0){ + a->inv_qscale = avctx->extradata[0]; + if (a->inv_qscale == 0) { av_log(avctx, AV_LOG_ERROR, "illegal qscale 0\n"); - if(avctx->codec_id == AV_CODEC_ID_ASV1) - a->inv_qscale= 6; + if (avctx->codec_id == AV_CODEC_ID_ASV1) + a->inv_qscale = 6; else - a->inv_qscale= 10; + a->inv_qscale = 10; } - for(i=0; i<64; i++){ + for (i = 0; i < 64; i++) { int index = ff_asv_scantab[i]; - a->intra_matrix[i]= 64*scale*ff_mpeg1_default_intra_matrix[index] / a->inv_qscale; + 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); + 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; } -static av_cold int decode_end(AVCodecContext *avctx){ +static av_cold 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; + a->bitstream_buffer_size = 0; - if(a->picture.data[0]) + if (a->picture.data[0]) avctx->release_buffer(avctx, &a->picture); return 0; -- cgit v1.2.3