diff options
author | Michael Niedermayer <michaelni@gmx.at> | 2011-10-12 05:33:52 +0200 |
---|---|---|
committer | Michael Niedermayer <michaelni@gmx.at> | 2011-10-12 05:40:57 +0200 |
commit | b81f8880e010ccdef3604d9beb681d3c4c6a7bc0 (patch) | |
tree | 0a6534f8fd2d53e84f6b5716047e473b1598cd3d /libavcodec/simple_idct.c | |
parent | b75d89a4784e027cec99236d58e9bd4121ec4309 (diff) | |
parent | 5f3fb599536dd5bceb1d45cb73cd0b0ce3e5560c (diff) | |
download | ffmpeg-b81f8880e010ccdef3604d9beb681d3c4c6a7bc0.tar.gz |
Merge remote-tracking branch 'qatar/master'
* qatar/master: (23 commits)
fix AC3ENC_OPT_MODE_ON/OFF
h264: fix HRD parameters parsing
prores: implement multithreading.
prores: idct sse2/sse4 optimizations.
swscale: use aligned move for storage into temporary buffer.
prores: extract idct into its own dspcontext and merge with put_pixels.
h264: fix invalid shifts in init_cavlc_level_tab()
intfloat_readwrite: fix signed addition overflows
mov: do not misreport empty stts
mov: cosmetics, fix for and if spacing
id3v2: fix NULL pointer dereference
mov: read album_artist atom
mov: fix disc/track numbers and totals
doc: fix references to obsolete presets directories for avconv/ffmpeg
flashsv: return more meaningful error value
flashsv: fix typo in av_log() message
smacker: validate channels and sample format.
smacker: check buffer size before reading output size
smacker: validate number of channels
smacker: Separate audio flags from sample rates in smacker demuxer.
...
Conflicts:
cmdutils.h
doc/ffmpeg.texi
libavcodec/Makefile
libavcodec/motion_est_template.c
libavformat/id3v2.c
libavformat/mov.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/simple_idct.c')
-rw-r--r-- | libavcodec/simple_idct.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/libavcodec/simple_idct.c b/libavcodec/simple_idct.c index ffe5a0b070..b4e763a704 100644 --- a/libavcodec/simple_idct.c +++ b/libavcodec/simple_idct.c @@ -221,3 +221,20 @@ void ff_simple_idct44_add(uint8_t *dest, int line_size, DCTELEM *block) idct4col_add(dest + i, line_size, block + i); } } + +void ff_prores_idct(DCTELEM *block, const int16_t *qmat) +{ + int i; + + for (i = 0; i < 64; i++) + block[i] *= qmat[i]; + + for (i = 0; i < 8; i++) + idctRowCondDC_10(block + i*8); + + for (i = 0; i < 64; i++) + block[i] >>= 2; + + for (i = 0; i < 8; i++) + idctSparseCol_10(block + i); +} |