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Commit Graph

1559 Commits

Author SHA1 Message Date
Reimar Döffinger
def19c9036 Unroll base64 decode loop.
Around 50% faster.
decode:       374139 -> 248852 decicycles
syntax check: 236955 -> 123854 decicycles

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2012-01-21 16:35:11 +01:00
Reimar Döffinger
523f676b51 Use a full table for base64 decode.
Also encodes error or end marker into table.
About 20% faster.
decode:       466491 -> 374139 decicycles
syntax check: 236955 -> 161182 decicycles

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2012-01-21 14:52:05 +01:00
Reimar Döffinger
8650d5faf9 base64: more thorough decode tests.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2012-01-21 12:04:46 +01:00
Michael Niedermayer
bdd739e91c base64: Only run benchmark when "-t" is specified.
As the test is run during fate and the benchmark is useless for fate
this very slightly speeds up fate. Its also consistent with the other
tests.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-21 05:13:56 +01:00
Michael Niedermayer
57822f0660 base64: fix little typo
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-21 02:10:19 +01:00
Michael Niedermayer
01084336b7 base64: add a benchmark for a pure syntax check.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-21 00:32:52 +01:00
Michael Niedermayer
ea4da94895 base64: simplify end handling in av_base64_encode()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-21 00:24:10 +01:00
Michael Niedermayer
112bca91b0 base64: optimize av_base64_encode()
This makes the code 2-3 times as fast

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-21 00:24:10 +01:00
Michael Niedermayer
a41687c2d6 base64: add benchmark
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-21 00:24:10 +01:00
Reimar Döffinger
d60d718c49 Slightly optimize base64 encode.
Move handling of last byte outside of innermost loop.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2012-01-20 23:28:31 +01:00
Reimar Döffinger
6af4c9814a Optimize output buffer size check in base64 decode.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2012-01-20 23:28:26 +01:00
Reimar Döffinger
686ba5f4ea Minor optimization of base64 decode.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2012-01-20 23:27:16 +01:00
Michael Niedermayer
2d9e2c6464 opt: Fix "libavutil/opt.c:811:20: warning: initialization discards ‘const’ qualifier from pointer target type [enabled by default]"
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-20 20:34:48 +01:00
Stefano Sabatini
24860a913c tools: add ffeval tool
The tool is useful for testing the internal arithmetic evaluation engine
(indeed I plan to use it in FATE), and provides a handy calculator when
you can't rely on bc ;-).
2012-01-17 12:10:07 +01:00
Stefano Sabatini
999495734b lavu/eval: add if() and ifnot() eval functions
They allow to implement the if/then/else logic, which cannot be
implemented otherwise.

For example the expression:
A*B + not(A)*C

always evaluates to NaN if B is NaN, even in the case where A is 0.
2012-01-17 12:03:30 +01:00
Clément Bœsch
5fc51c3155 lavu: add 2.1 channel layout. 2012-01-16 17:38:23 +01:00
Carl Eugen Hoyos
c3ff0713ef Fix step_minus1 pixel descirption for RGB64. 2012-01-11 10:54:12 +01:00
Michael Niedermayer
f4a01d7788 x86inc: remove duplicate movlhps
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-10 23:12:18 +01:00
Michael Niedermayer
dd3ca3ea15 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  fate: Add tests for more AAC features.
  aacps: Add missing newline in error message.
  fate: Add tests for vc1/wmapro in ism.
  aacdec: Add a fate test for 5.1 channel SBR.
  aacdec: Turn off PS for multichannel files that use PCE based configs.
  cabac: remove put_cabac_u/ueg from cabac-test.
  swscale: RGB4444 and BGR444 input
  FATE: add test for xWMA demuxer.
  FATE: add test for SMJPEG demuxer and associated IMA ADPCM audio decoder.
  mpegaudiodec: optimized iMDCT transform
  mpegaudiodec: change imdct window arrangment for better pointer alignment
  mpegaudiodec: move imdct and windowing function to mpegaudiodsp
  mpegaudiodec: interleave iMDCT buffer to simplify future SIMD implementations
  swscale: convert yuy2/uyvy/nv12/nv21ToY/UV from inline asm to yasm.
  FATE: test to exercise WTV demuxer.
  mjpegdec: K&R formatting cosmetics
  swscale: K&R formatting cosmetics for code examples
  swscale: K&R reformatting cosmetics for header files
  FATE test: cvid-grayscale; ensures that the grayscale Cinepak variant is exercised.

Conflicts:
	libavcodec/cabac.c
	libavcodec/mjpegdec.c
	libavcodec/mpegaudiodec.c
	libavcodec/mpegaudiodsp.c
	libavcodec/mpegaudiodsp.h
	libavcodec/mpegaudiodsp_template.c
	libavcodec/x86/Makefile
	libavcodec/x86/imdct36_sse.asm
	libavcodec/x86/mpegaudiodec_mmx.c
	libswscale/swscale-test.c
	libswscale/swscale.c
	libswscale/swscale_internal.h
	libswscale/x86/swscale_template.c
	tests/fate/demux.mak
	tests/fate/microsoft.mak
	tests/fate/video.mak
	tests/fate/wma.mak
	tests/ref/lavfi/pixfmts_scale

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-10 03:50:41 +01:00
Clément Bœsch
625751c47a log: use a different color for debug (green). 2012-01-09 22:35:45 +01:00
Vitor Sessak
39df0c434c mpegaudiodec: optimized iMDCT transform
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-01-08 17:40:55 -08:00
Michael Niedermayer
3edff185ab Merge remote-tracking branch 'qatar/master'
* qatar/master: (21 commits)
  ipmovie: do not read audio packets before the codec is known
  truemotion2: check size before GetBitContext initialisation
  avio: Only do implicit network initialization for network protocols
  avio: Add an URLProtocol flag for indicating that a protocol uses network
  adpcm: ADPCM Electronic Arts has always two channels
  matroskadec: Fix a bug where a pointer was cached to an array that might later move due to a realloc()
  fate: Add missing reference file from 9b4767e4.
  mov: Support MOV_CH_LAYOUT_USE_DESCRIPTIONS for labeled descriptions.
  4xm: Prevent buffer overreads.
  mjpegdec: parse RSTn to prevent skipping other data in mjpeg_decode_scan
  vp3: add fate test for non-zero last coefficient
  vp3: fix streams with non-zero last coefficient
  swscale: remove unused U/V arguments from yuv2rgb_write().
  timer: K&R formatting cosmetics
  lavf: cosmetics, reformat av_read_frame().
  lavf: refactor av_read_frame() to make it easier to understand.
  Report an error if pitch_lag is zero in AMR-NB decoder.
  Revert "4xm: Prevent buffer overreads."
  4xm: Prevent buffer overreads.
  4xm: pass the correct remaining buffer size to decode_i2_frame().
  ...

Conflicts:
	libavcodec/4xm.c
	libavcodec/mjpegdec.c
	libavcodec/truemotion2.c
	libavformat/ipmovie.c
	libavformat/mov_chan.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-06 02:45:12 +01:00
Diego Biurrun
dff4af448d timer: K&R formatting cosmetics 2012-01-05 14:48:30 +01:00
Michael Niedermayer
ad1c8dd673 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  fate: add dxtory test
  adx_parser: rewrite.
  adxdec: Validate channel count to fix a division by zero.
  adxdec: Do not require extradata.
  cmdutils: K&R reformatting cosmetics
  alacdec: implement the 2-pass prediction type.
  alacenc: implement the 2-pass prediction type.
  alacenc: do not generate invalid multi-channel ALAC files
  alacdec: fill in missing or guessed info about the extradata format.
  utvideo: proper median prediction for interlaced videos
  lavu: bump lavu minor for av_popcount64
  dca: K&R formatting cosmetics
  dct: K&R formatting cosmetics
  lavf: flush decoders in avformat_find_stream_info().
  win32: detect number of CPUs using affinity
  Add av_popcount64
  snow: Restore three mistakenly removed casts.

Conflicts:
	cmdutils.c
	doc/APIchanges
	libavcodec/adx_parser.c
	libavcodec/adxdec.c
	libavcodec/alacenc.c
	libavutil/avutil.h
	tests/fate/screen.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-04 01:12:34 +01:00
Janne Grunau
c04a954da6 lavu: bump lavu minor for av_popcount64
Add it to doc/APIchanges and update and correct other entries.
2012-01-03 15:42:26 +01:00
Daniel Verkamp
b73ec05473 Add av_popcount64
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
2012-01-03 14:25:43 +01:00
Reimar Döffinger
42a1f1d7a8 Avoid uninitialized data in lcldec when ofs is 0 in MSZH.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2011-12-31 16:31:15 +01:00
Reimar Döffinger
874da652b3 Avoid av_memcpy_backptr hang without extra branch.
This only happens for a "back" value of 0 which is invalid anyway,
but lcldec does not properly validate input.
Also extend the documentation to specify valid values.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2011-12-30 10:37:33 +01:00
Michael Niedermayer
5a8e994287 mem: add av_max_alloc() to limit the maximum amount that may be allocated in one piece
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-25 18:55:43 +01:00
Michael Niedermayer
58c41799ab lzo: fix memcpy_backptr() with 0 offset
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-24 18:42:55 +01:00
Carl Eugen Hoyos
c25c7ba87c Make systematic palette opaque. 2011-12-23 11:43:29 +01:00
Michael Niedermayer
9eb0d8bab1 fifo: Make writes atomic.
Prior to this a X bytes write could be seen as less than X bytes being
available if the check was done at an unfortunate moment.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-23 00:18:36 +01:00
Michael Niedermayer
1674073b4d libavutil: increase LIBAVUTIL_VERSION_MICRO to 100
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-22 03:01:17 +01:00
Michael Niedermayer
52c522c720 Merge remote-tracking branch 'qatar/master'
* qatar/master: (27 commits)
  asfdec: add side data to ASFStream packet instead of output packet.
  idroqdec: set AVFMTCTX_NOHEADER and create streams as they occur.
  nellymoserdec: Indicate that the decoder can handle changed parameters
  libavcodec: Apply parameter change side data when decoding audio
  flvdec: Add param change side data if the sample rate or channels have changed
  libavformat: Add a utility function for adding parameter change side data
  libavcodec: Define a side data type for parameter changes
  aacdec: Handle new extradata passed as side data
  flvdec: Export new AAC/H.264 extradata as side data on the next packet
  libavcodec: Define a side data type for new extradata
  flacdec: skip all track indices at once instead of looping.
  mxf: Add PictureEssenceCoding UL for V210.
  mxfdec: consider QuantizationBits between 17 and 24 to be pcm_s24*
  mxfenc: Add support for MPEG-2 MP@HL-14 in mxf container.
  mxf: H.264/MPEG-4 AVC Intra support
  configure: Show whether the safe bitstream reader is enabled
  x86: Tighten register constraints for decode_significance*_x86.
  Replace Subversion revisions in comments by Git hashes.
  h264_cabac: synchronize decode_significance_*_x86 conditionals
  w32threads: wait for the waked thread in pthread_cond_signal.
  ...

Conflicts:
	libavcodec/avcodec.h
	libavcodec/version.h
	libavformat/flvdec.c
	libavformat/utils.c
	tests/ref/lavfi/pixdesc
	tests/ref/lavfi/pixfmts_copy
	tests/ref/lavfi/pixfmts_null
	tests/ref/lavfi/pixfmts_scale
	tests/ref/lavfi/pixfmts_vflip

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-22 01:51:53 +01:00
Diego Biurrun
c18365402b Replace Subversion revisions in comments by Git hashes. 2011-12-21 09:04:25 +01:00
Michael Niedermayer
0edf7ebcd6 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  h264: clear trailing bits in partially parsed NAL units
  vc1: Handle WVC1 interlaced stream
  xl: Fix overreads
  mpegts: rename payload_index to payload_size
  segment: introduce segmented chain muxer
  lavu: add AVERROR_BUG error value
  avplay: clear pkt_temp when pkt is freed.
  qcelpdec: K&R formatting cosmetics
  qcelpdec: cosmetics: drop some pointless parentheses
  x86: conditionally compile dnxhd encoder optimizations
  Revert "h264: skip start code search if the size of the nal unit is known"
  swscale: fix formatting and indentation of unscaled conversion routines.
  h264: skip start code search if the size of the nal unit is known
  cljr: fix buf_size sanity check
  cljr: Check if width and height are positive integers

Conflicts:
	libavcodec/cljr.c
	libavcodec/vc1dec.c
	libavformat/Makefile
	libavformat/mpegtsenc.c
	libavformat/segment.c
	libswscale/swscale_unscaled.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-20 04:12:09 +01:00
Luca Barbato
1ee5b5e823 lavu: add AVERROR_BUG error value
It should be used to mark codepath that can be reached only through
programming error.
2011-12-19 18:31:28 +01:00
Michael Niedermayer
75f2cc5134 avutil: check sampleformats enum, pict type enum and media type enum against insert/remove mistakes.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-17 05:47:37 +01:00
Michael Niedermayer
68230eb375 pixfmts: Selfcheck against insertions / deletions in the enum.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-17 05:41:42 +01:00
Michael Niedermayer
3ba0bfe71f Merge remote-tracking branch 'qatar/master'
* qatar/master:
  ulti: Fix invalid reads
  lavf: dealloc private options in av_write_trailer
  yadif: support 10bit YUV
  vc1: mark with ER_MB_ERROR bits overconsumption
  lavc: introduce ER_MB_END and ER_MB_ERROR
  error_resilience: use the ER_ namespace
  build: move inclusion of subdir.mak to main subdir loop
  rv34: NEON optimised 4x4 dequant
  rv34: move 4x4 dequant to RV34DSPContext
  aacdec: Use intfloat.h rather than local punning union.

Conflicts:
	libavcodec/h264.c
	libavcodec/vc1dec.c
	libavfilter/vf_yadif.c
	libavformat/Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-13 23:21:37 +01:00
Mans Rullgard
878dda5db1 build: move inclusion of subdir.mak to main subdir loop
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-12-13 14:26:49 +00:00
Michael Niedermayer
8bc7fe4daf Merge remote-tracking branch 'qatar/master'
* qatar/master:
  doxygen: misc consistency, spelling and wording fixes
  vcr1: drop unnecessary emms_c() calls without MMX code
  Replace all uses of av_close_input_file() with avformat_close_input().
  lavf: add avformat_close_input().
  lavf: deprecate av_close_input_stream().
  lavf doxy: add some basic demuxing documentation.
  lavf doxy: add some general lavf information.
  lavf doxy: add misc utility functions to a group.
  lavf doxy: add av_guess_codec/format to the encoding group.
  lavf doxy: add core functions to a doxy group.
  Add basic libavdevice documentation.
  lavc: convert error_recognition to err_recognition.
  avconv: update -map option help text
  x86: Require 7 registers for the cabac asm
  x86: bswap: remove test for bswap instruction
  bswap: make generic implementation more compiler-friendly
  h264: remove useless cast
  proresdec: fix decode_slice() prototype

Conflicts:
	configure
	doc/APIchanges
	ffprobe.c
	libavcodec/avcodec.h
	libavcodec/celp_math.h
	libavcodec/h264.c
	libavfilter/src_movie.c
	libavformat/anm.c
	libavformat/avformat.h
	libavformat/version.h
	libavutil/avstring.h
	libavutil/bswap.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-13 00:39:48 +01:00
Diego Biurrun
58c42af722 doxygen: misc consistency, spelling and wording fixes 2011-12-12 23:06:23 +01:00
Anton Khirnov
1be323054e Add basic libavdevice documentation. 2011-12-12 19:43:37 +01:00
Mans Rullgard
5b0d35eaed x86: bswap: remove test for bswap instruction
Firstly, this test never worked as intended, always reporting
success.  Secondly, bswap is available from 486 onward and can
thus be assumed present.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-12-12 12:14:15 +00:00
Mans Rullgard
f64c2e710f bswap: make generic implementation more compiler-friendly
With these changes, gcc 4.5 and later recognise it as a bswap
and use the proper instructions on ARM and x86.  On x86, the
16-bit bswap is recognised from gcc 4.1.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-12-12 12:14:14 +00:00
Michael Niedermayer
7fad19a63d Merge remote-tracking branch 'qatar/master'
* qatar/master:
  x86: cabac: replace explicit memory references with "m" operands
  avplay: don't request a stereo downmix
  wmapro: use av_float2int()
  lavc: avoid invalid memcpy() in avcodec_default_release_buffer()
  lavu: replace int/float punning functions
  lavfi: install libavfilter/vsrc_buffer.h
  Remove extraneous semicolons
  sdp: Restore the original mp4 format h264 extradata if converted
  rtpenc: Add support for mp4 format h264
  rtpenc: Simplify code by introducing a separate end pointer
  movenc: Use the actual converted sample for RTP hinting
  Fix a bunch of common typos.

Conflicts:
	doc/developer.texi
	doc/eval.texi
	doc/filters.texi
	doc/protocols.texi
	ffmpeg.c
	ffplay.c
	libavcodec/mpegvideo.h
	libavcodec/x86/cabac.h
	libavfilter/Makefile
	libavformat/avformat.h
	libavformat/cafdec.c
	libavformat/flvdec.c
	libavformat/flvenc.c
	libavformat/gxfenc.c
	libavformat/img2.c
	libavformat/movenc.c
	libavformat/mpegts.c
	libavformat/rtpenc_h264.c
	libavformat/utils.c
	libavformat/wtv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-12 01:25:37 +01:00
Mans Rullgard
3383a53e7d lavu: replace int/float punning functions
The existing functions defined in intfloat_readwrite.[ch] are
both slow and incorrect (infinities are not handled).

This introduces a new header with fast, inline conversion
functions using direct union punning assuming an IEEE-754
system, an assumption already made throughout the code.

The one use of Intel/Motorola extended 80-bit format is
replaced by simpler code sufficient under the present
constraints (positive normal values).

The old functions are marked deprecated and retained for
compatibility.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-12-11 18:47:19 +00:00
Hanspeter Niederstrasser
bed04e2b03 Correct use of OSX to Mac OS X and properly format yasm providers on Mac OS X
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-11 03:00:30 +01:00
Diego Biurrun
da9cea77e3 Fix a bunch of common typos. 2011-12-11 00:32:25 +01:00