diff options
| author | Mans Rullgard <mans@mansr.com> | 2012-07-29 13:09:10 +0100 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2012-07-29 21:30:57 +0100 |
| commit | f3eb00834362273dcb1fd3320faa5f8f5a00fb22 (patch) | |
| tree | 2987b75048fa48d5dc6591b16aea3ed7824f20a5 /libavcodec/eamad.c | |
| parent | 591766a3a9c88614b9cb0ed90e25dc6e7d883752 (diff) | |
| download | ffmpeg-f3eb00834362273dcb1fd3320faa5f8f5a00fb22.tar.gz | |
eamad/eatgq/eatqi: call special EA IDCT directly
These decoders use a special non-MPEG2 IDCT. Call it directly
instead of going through dsputil. There is never any reason
to use a regular IDCT with these decoders or to use the EA IDCT
with other codecs.
This also fixes the bizarre situation of eamad and eatqi decoding
incorrectly if eatgq is disabled.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/eamad.c')
| -rw-r--r-- | libavcodec/eamad.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/libavcodec/eamad.c b/libavcodec/eamad.c index b738f9458c..ca7439397f 100644 --- a/libavcodec/eamad.c +++ b/libavcodec/eamad.c @@ -32,6 +32,7 @@ #include "get_bits.h" #include "dsputil.h" #include "aandcttab.h" +#include "eaidct.h" #include "mpeg12.h" #include "mpeg12data.h" #include "libavutil/imgutils.h" @@ -68,9 +69,8 @@ static av_cold int decode_init(AVCodecContext *avctx) MadContext *s = avctx->priv_data; s->avctx = avctx; avctx->pix_fmt = PIX_FMT_YUV420P; - if (avctx->idct_algo == FF_IDCT_AUTO) - avctx->idct_algo = FF_IDCT_EA; ff_dsputil_init(&s->dsp, avctx); + ff_init_scantable_permutation(s->dsp.idct_permutation, FF_NO_IDCT_PERM); ff_init_scantable(s->dsp.idct_permutation, &s->scantable, ff_zigzag_direct); ff_mpeg12_init_vlcs(); return 0; @@ -105,12 +105,12 @@ static inline void comp_block(MadContext *t, int mb_x, int mb_y, static inline void idct_put(MadContext *t, DCTELEM *block, int mb_x, int mb_y, int j) { if (j < 4) { - t->dsp.idct_put( + ff_ea_idct_put_c( t->frame.data[0] + (mb_y*16 + ((j&2)<<2))*t->frame.linesize[0] + mb_x*16 + ((j&1)<<3), t->frame.linesize[0], block); } else if (!(t->avctx->flags & CODEC_FLAG_GRAY)) { int index = j - 3; - t->dsp.idct_put( + ff_ea_idct_put_c( t->frame.data[index] + (mb_y*8)*t->frame.linesize[index] + mb_x*8, t->frame.linesize[index], block); } @@ -219,15 +219,9 @@ static void calc_quant_matrix(MadContext *s, int qscale) { int i; - if (s->avctx->idct_algo == FF_IDCT_EA) { - s->quant_matrix[0] = (ff_inv_aanscales[0]*ff_mpeg1_default_intra_matrix[0]) >> 11; - for (i=1; i<64; i++) - s->quant_matrix[i] = (ff_inv_aanscales[i]*ff_mpeg1_default_intra_matrix[i]*qscale + 32) >> 10; - } else { - s->quant_matrix[0] = ff_mpeg1_default_intra_matrix[0]; - for (i=1; i<64; i++) - s->quant_matrix[i] = (ff_mpeg1_default_intra_matrix[i]*qscale) << 1; - } + s->quant_matrix[0] = (ff_inv_aanscales[0]*ff_mpeg1_default_intra_matrix[0]) >> 11; + for (i=1; i<64; i++) + s->quant_matrix[i] = (ff_inv_aanscales[i]*ff_mpeg1_default_intra_matrix[i]*qscale + 32) >> 10; } static int decode_frame(AVCodecContext *avctx, |