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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-01-13 01:07:30 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-01-13 01:29:48 +0100 |
| commit | b18e17eabf3ba51da2d0fd0f85c4815945bfd70a (patch) | |
| tree | e949920e01cba93fbedca647076f72b31eec59cb /libavcodec/rv34dsp.c | |
| parent | a2c419848df3e76e164bd19c3841f39d2971d326 (diff) | |
| parent | 4df30f71147b7bedd4457bcfa0e4efe01085af9f (diff) | |
| download | ffmpeg-b18e17eabf3ba51da2d0fd0f85c4815945bfd70a.tar.gz | |
Merge remote-tracking branch 'qatar/master'
* qatar/master: (21 commits)
utils: Check for extradata size overflows.
ARM: rv34: fix asm syntax in dc transform functions
avio: Fix the value of the deprecated URL_FLAG_NONBLOCK
rv34: fix and optimise frame dependency checking
rv34: NEON optimised dc only inverse transform
avprobe: use avio_size() instead of deprecated AVFormatContext.file_size.
ffmenc: remove references to deprecated AVFormatContext.timestamp.
lavf: undeprecate read_seek().
avserver: remove code using deprecated CODEC_CAP_PARSE_ONLY.
lavc: replace some remaining FF_I_TYPE with AV_PICTURE_TYPE_I
lavc: ifdef out parse_only AVOption
nellymoserdec: SAMPLE_FMT -> AV_SAMPLE_FMT
mpegvideo_enc: ifdef out/replace references to deprecated codec flags.
riff: remove references to sonic codec ids
indeo4: add some missing static and const qualifiers
rv34: DC-only inverse transform
avconv: use AVFrame.width/height/format instead of corresponding AVCodecContext fields
lavfi: move version macros to a new installed header version.h
vsrc_buffer: release the buffer on uninit.
rgb2rgb: rgb12tobgr12()
...
Conflicts:
avconv.c
doc/APIchanges
ffprobe.c
libavfilter/Makefile
libavfilter/avfilter.h
libswscale/rgb2rgb.c
libswscale/rgb2rgb.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/rv34dsp.c')
| -rw-r--r-- | libavcodec/rv34dsp.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/libavcodec/rv34dsp.c b/libavcodec/rv34dsp.c index 1f4cea8544..1767be4173 100644 --- a/libavcodec/rv34dsp.c +++ b/libavcodec/rv34dsp.c @@ -97,13 +97,37 @@ static void rv34_inv_transform_noround_c(DCTELEM *block){ } } +static void rv34_inv_transform_dc_c(DCTELEM *block) +{ + DCTELEM dc = (13 * 13 * block[0] + 0x200) >> 10; + int i, j; + + for (i = 0; i < 4; i++, block += 8) + for (j = 0; j < 4; j++) + block[j] = dc; +} + +static void rv34_inv_transform_dc_noround_c(DCTELEM *block) +{ + DCTELEM dc = (13 * 13 * 3 * block[0]) >> 11; + int i, j; + + for (i = 0; i < 4; i++, block += 8) + for (j = 0; j < 4; j++) + block[j] = dc; +} + /** @} */ // transform av_cold void ff_rv34dsp_init(RV34DSPContext *c, DSPContext* dsp) { c->rv34_inv_transform_tab[0] = rv34_inv_transform_c; c->rv34_inv_transform_tab[1] = rv34_inv_transform_noround_c; + c->rv34_inv_transform_dc_tab[0] = rv34_inv_transform_dc_c; + c->rv34_inv_transform_dc_tab[1] = rv34_inv_transform_dc_noround_c; if (HAVE_NEON) ff_rv34dsp_init_neon(c, dsp); + if (HAVE_MMX) + ff_rv34dsp_init_x86(c, dsp); } |