virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

h264: Simplify decode_cabac_residual() specialization

Browse Source 
Gives more consistent inlining with some compilers (such as llvm).

Originally committed as revision 22689 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alexander Strange 2010-03-26 03:29:31 +00:00
parent 532aa889eb
commit f7ba470d58
1 changed files with 6 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
libavcodec/h264_cabac.c
View File

@ -1171,7 +1171,6 @@ static av_always_inline void decode_cabac_residual_internal( H264Context *h, DCT
}
#if !CONFIG_SMALL
static void decode_cabac_residual_dc( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff ) {
decode_cabac_residual_internal(h, block, cat, n, scantable, qmul, max_coeff, 1);
}
@ -1179,16 +1178,6 @@ static void decode_cabac_residual_dc( H264Context *h, DCTELEM *block, int cat, i
static void decode_cabac_residual_nondc( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff ) {
decode_cabac_residual_internal(h, block, cat, n, scantable, qmul, max_coeff, 0);
}
#endif
static void decode_cabac_residual( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff ) {
#if CONFIG_SMALL
decode_cabac_residual_internal(h, block, cat, n, scantable, qmul, max_coeff, cat == 0 || cat == 3);
#else
if( cat == 0 || cat == 3 ) decode_cabac_residual_dc(h, block, cat, n, scantable, qmul, max_coeff);
else decode_cabac_residual_nondc(h, block, cat, n, scantable, qmul, max_coeff);
#endif
}
/**
* decodes a macroblock
@ -1653,13 +1642,13 @@ decode_intra_mb:
if( IS_INTRA16x16( mb_type ) ) {
int i;
//av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 DC\n" );
decode_cabac_residual( h, h->mb, 0, 0, dc_scan, NULL, 16);
decode_cabac_residual_dc( h, h->mb, 0, 0, dc_scan, NULL, 16);
if( cbp&15 ) {
qmul = h->dequant4_coeff[0][s->qscale];
for( i = 0; i < 16; i++ ) {
//av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 AC:%d\n", i );
decode_cabac_residual(h, h->mb + 16*i, 1, i, scan + 1, qmul, 15);
decode_cabac_residual_nondc(h, h->mb + 16*i, 1, i, scan + 1, qmul, 15);
}
} else {
fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1);
@ -1669,7 +1658,7 @@ decode_intra_mb:
for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
if( cbp & (1<<i8x8) ) {
if( IS_8x8DCT(mb_type) ) {
decode_cabac_residual(h, h->mb + 64*i8x8, 5, 4*i8x8,
decode_cabac_residual_nondc(h, h->mb + 64*i8x8, 5, 4*i8x8,
scan8x8, h->dequant8_coeff[IS_INTRA( mb_type ) ? 0:1][s->qscale], 64);
} else {
qmul = h->dequant4_coeff[IS_INTRA( mb_type ) ? 0:3][s->qscale];
@ -1677,7 +1666,7 @@ decode_intra_mb:
const int index = 4*i8x8 + i4x4;
//av_log( s->avctx, AV_LOG_ERROR, "Luma4x4: %d\n", index );
//START_TIMER
decode_cabac_residual(h, h->mb + 16*index, 2, index, scan, qmul, 16);
decode_cabac_residual_nondc(h, h->mb + 16*index, 2, index, scan, qmul, 16);
//STOP_TIMER("decode_residual")
}
}
@ -1692,7 +1681,7 @@ decode_intra_mb:
int c;
for( c = 0; c < 2; c++ ) {
//av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-DC\n",c );
decode_cabac_residual(h, h->mb + 256 + 16*4*c, 3, c, chroma_dc_scan, NULL, 4);
decode_cabac_residual_dc(h, h->mb + 256 + 16*4*c, 3, c, chroma_dc_scan, NULL, 4);
}
}
@ -1703,7 +1692,7 @@ decode_intra_mb:
for( i = 0; i < 4; i++ ) {
const int index = 16 + 4 * c + i;
//av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-AC %d\n",c, index - 16 );
decode_cabac_residual(h, h->mb + 16*index, 4, index, scan + 1, qmul, 15);
decode_cabac_residual_nondc(h, h->mb + 16*index, 4, index, scan + 1, qmul, 15);
}
}
} else {