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Author SHA1 Message Date
Andreas Rheinhardt 51ca74b525 avcodec/dvdec: Avoid stack buffers
Instead reuse the destination RL VLC as scratch space.
This is possible, because the (implicit) codes here are already
ordered from left-to-right in the tree and because the codelengths
are increasing, which implies that mapping from VLC entries to the
corresponding entries used to initialize the VLC is monotonically
increasing. This means that one can reuse the right end of the
destination RL VLC to store the tables used to initialize the VLC
with.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-09-07 00:07:45 +02:00
Andreas Rheinhardt 116e2a9ee2 avcodec/dv_tablegen, dvdata: Remove ff_dv_vlc_bits
The codes can be easily calculated, so the table is unnecessary.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2022-09-07 00:07:45 +02:00
Christophe Gisquet 05da586fef dv: move inverse weight tables to decoder
The encoder has its own tables and does not access the idct_factor
member of the DVVideoContext structure.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-10-26 19:21:59 +01:00
Christophe Gisquet 80b29c2d0c dv: use smaller type for weight tables
Reviewed-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-10-25 16:54:12 +02:00
Michael Niedermayer 47fc82b5b3 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  dsputil: Move DV-specific ff_zigzag248_direct table to dvdata

Conflicts:
	libavcodec/dv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-04-05 19:43:28 +02:00
Diego Biurrun 5f92204370 dsputil: Move DV-specific ff_zigzag248_direct table to dvdata 2014-04-04 19:08:05 +02:00
Michael Niedermayer b58c1dd632 Merge commit '21710ea82118c9d19bea9277b2a85a33096fdd95'
* commit '21710ea82118c9d19bea9277b2a85a33096fdd95':
  dv: Move DV VLC data tables out of header file

Conflicts:
	libavcodec/dv_vlc_data.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-12-02 20:24:02 +01:00
Diego Biurrun 21710ea821 dv: Move DV VLC data tables out of header file 2013-12-02 13:13:09 +01:00
Michael Niedermayer e28130bcaf Merge commit '3cbe1126530449336e2ce59b194bdb8c4eb4abb4'
* commit '3cbe1126530449336e2ce59b194bdb8c4eb4abb4':
  dv: Split DV data table declarations into their own header

Conflicts:
	libavcodec/dvdata.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-11-15 12:52:19 +01:00
Diego Biurrun 3cbe112653 dv: Split DV data table declarations into their own header
This is necessary to avoid target config settings bleeding into the host
compilation process with hardcoded tables and the DV VLC tables no longer
present as static tables in a header file.
2013-11-15 01:29:47 +01:00
Michael Niedermayer ac8987591f Merge commit '88bd7fdc821aaa0cbcf44cf075c62aaa42121e3f'
* commit '88bd7fdc821aaa0cbcf44cf075c62aaa42121e3f':
  Drop DCTELEM typedef

Conflicts:
	libavcodec/alpha/dsputil_alpha.h
	libavcodec/alpha/motion_est_alpha.c
	libavcodec/arm/dsputil_init_armv6.c
	libavcodec/bfin/dsputil_bfin.h
	libavcodec/bfin/pixels_bfin.S
	libavcodec/cavs.c
	libavcodec/cavsdec.c
	libavcodec/dct-test.c
	libavcodec/dnxhdenc.c
	libavcodec/dsputil.c
	libavcodec/dsputil.h
	libavcodec/dsputil_template.c
	libavcodec/eamad.c
	libavcodec/h264_cavlc.c
	libavcodec/h264idct_template.c
	libavcodec/mpeg12.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo.h
	libavcodec/mpegvideo_enc.c
	libavcodec/ppc/dsputil_altivec.c
	libavcodec/proresdsp.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-23 17:44:56 +01:00
Diego Biurrun 88bd7fdc82 Drop DCTELEM typedef
It does not help as an abstraction and adds dsputil dependencies.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2013-01-22 18:32:56 -08:00
Michael Niedermayer b4178a3f13 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  rtmp: Support 'rtmp_live', an option which specifies if the media is a live stream.
  av_samples_fill_array: Mark unmodified function argument as const.
  lagarith: add YUY2 decoding support
  Support decoding unaligned rgb24 lagarith.
  dv: Split profile handling code into a separate file.
  flvenc: use AVFormatContext, not AVCodecContext for logging.
  mov: Remove write-only variable in mov_read_chan().
  fate: Change the probe-format refs to match the final text format committed.
  fate: Add avprobe as a make dependency
  Add probe fate tests to test for regressions in detecting media types.
  fate: Add oneline comparison method
  qdm2: clip array indices returned by qdm2_get_vlc().
  avplay: properly close/reopen AVAudioResampleContext on channel layout change
  avcodec: do not needlessly set packet size to 0 in avcodec_encode_audio2()
  avcodec: for audio encoding, reset output packet when it is not valid
  avcodec: refactor avcodec_encode_audio2() to merge common branches
  avcodec: remove fallbacks for AVCodec.encode() in avcodec_encode_audio2()

Conflicts:
	ffplay.c
	libavcodec/Makefile
	libavcodec/dvdata.c
	libavcodec/dvdata.h
	libavcodec/qdm2.c
	libavcodec/utils.c
	libavformat/flvenc.c
	libavformat/mov.c
	tests/Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-05-08 22:02:59 +02:00
Diego Biurrun 520c1ec699 dv: Split profile handling code into a separate file. 2012-05-07 23:59:49 +02:00
Michael Niedermayer 15141f939d Merge remote-tracking branch 'qatar/master'
* qatar/master:
  indeo3: add parens around some macro arguments
  h264: use proper PROLOGUE statement for a function using 8 registers.
  doc: Update sample Vim config with suitable (function) indentation settings.
  dv: Merge dvquant.h into dvdata.c where all other DV tables reside.
  dv: Move static tables only used in one place to where they are used.
  graphparser: set next to NULL on an entry extracted from inputs list
  doc/filters: update documentation.
  avconv: flush decoders immediately after an EOF.
  avconv: send EOF to vsrc_buffer.
  avconv: reindent.

Conflicts:
	doc/filters.texi
	ffmpeg.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-17 12:13:22 +02:00
Diego Biurrun a3dbd459ff dv: Merge dvquant.h into dvdata.c where all other DV tables reside. 2012-04-16 10:04:57 +02:00
Michael Niedermayer d40ff29cac Merge remote-tracking branch 'qatar/master'
* qatar/master:
  asf: only set index_read if the index contained entries.
  cabac: add overread protection to BRANCHLESS_GET_CABAC().
  cabac: increment jump locations by one in callers of BRANCHLESS_GET_CABAC().
  cabac: remove unused argument from BRANCHLESS_GET_CABAC_UPDATE().
  cabac: use struct+offset instead of memory operand in BRANCHLESS_GET_CABAC().
  h264: add overread protection to get_cabac_bypass_sign_x86().
  h264: reindent get_cabac_bypass_sign_x86().
  h264: use struct offsets in get_cabac_bypass_sign_x86().
  h264: fix overreads in cabac reader.
  wmall: fix seeking.
  lagarith: fix buffer overreads.
  dvdec: drop unnecessary dv_tablegen.h #include
  build: fix doc generation errors in parallel builds
  Replace memset(0) by zero initializations.
  faandct: Remove FAAN_POSTSCALE define and related code.
  dvenc: print allowed profiles if the video doesn't conform to any of them.
  avcodec_encode_{audio,video}: only reallocate output packet when it has non-zero size.
  FATE: add a test for vp8 with changing frame size.
  fate: add kgv1 fate test.
  oggdec: calculate correct timestamps in Ogg/FLAC

Conflicts:
	libavcodec/4xm.c
	libavcodec/cook.c
	libavcodec/dvdata.c
	libavcodec/dvdsubdec.c
	libavcodec/lagarith.c
	libavcodec/lagarithrac.c
	libavcodec/utils.c
	tests/fate/video.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-03-29 04:11:10 +02:00
Anton Khirnov a839dbb94e dvenc: print allowed profiles if the video doesn't conform to any of them. 2012-03-28 09:29:04 +02:00
Michael Niedermayer 7b453d1c60 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  westwood_vqa: fix SND0 chunk handling
  westwood_vqa: set video stream duration
  raw: forward avpicture_fill() error code in raw_decode().
  build: Do not explicitly add the doc directory to the OBJDIRS list.
  dv: Split off DV video decoder into its own file.
  build: fix RALF decoder standalone compilation, which depends on Golomb code
  configure: Drop stray duplicate entry for --disable-fft from help output.

Conflicts:
	libavcodec/dv.c
	libavcodec/rawdec.c
	libavformat/westwood_vqa.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-03-28 04:12:24 +02:00
Diego Biurrun d724fe665b dv: Split off DV video decoder into its own file. 2012-03-27 11:15:47 +02:00
Michael Niedermayer a78f6b8cb9 Merge remote-tracking branch 'qatar/master'
* qatar/master: (38 commits)
  v210enc: remove redundant check for pix_fmt
  wavpack: allow user to disable CRC checking
  v210enc: Use Bytestream2 functions
  cafdec: Check return value of avio_seek and avoid modifying state if it fails
  yop: Check return value of avio_seek and avoid modifying state if it fails
  tta: Check return value of avio_seek and avoid modifying state if it fails
  tmv: Check return value of avio_seek and avoid modifying state if it fails
  r3d: Check return value of avio_seek and avoid modifying state if it fails
  nsvdec: Check return value of avio_seek and avoid modifying state if it fails
  mpc8: Check return value of avio_seek and avoid modifying state if it fails
  jvdec: Check return value of avio_seek and avoid modifying state if it fails
  filmstripdec: Check return value of avio_seek and avoid modifying state if it fails
  ffmdec: Check return value of avio_seek and avoid modifying state if it fails
  dv: Check return value of avio_seek and avoid modifying state if it fails
  bink: Check return value of avio_seek and avoid modifying state if it fails
  Check AVCodec.pix_fmts in avcodec_open2()
  svq3: Prevent illegal reads while parsing extradata.
  remove ParseContext1
  vc1: use ff_parse_close
  mpegvideo parser: move specific fields into private context
  ...

Conflicts:
	libavcodec/4xm.c
	libavcodec/aacdec.c
	libavcodec/h264.c
	libavcodec/h264.h
	libavcodec/h264_cabac.c
	libavcodec/h264_cavlc.c
	libavcodec/mpeg4video_parser.c
	libavcodec/svq3.c
	libavcodec/v210enc.c
	libavformat/cafdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-11 01:22:22 +01:00
Alex Converse 81749f30cd dv: Move tables from dvdata.h to dvdata.c 2012-02-09 19:16:15 -08:00
Alex Converse 8dbdc2d840 dv: Move a table used only by the demuxer out of a shared header. 2012-02-09 19:16:15 -08:00
Alex Converse 89c9a8d3fd dv: Move functions used only by the encoder out of a shared header. 2012-02-09 19:16:15 -08:00
Alex Converse 3746072712 dv: Split dvdata.h into dvdata.h and dvquant.h 2012-02-09 19:16:15 -08:00
Michael Niedermayer dd8ffc1925 Merge remote-tracking branch 'qatar/master'
* qatar/master: (47 commits)
  lavc: hide private symbols.
  lavc: deprecate img_get_alpha_info().
  lavc: use avpriv_ prefix for ff_toupper4.
  lavc: use avpriv_ prefix for ff_copy_bits and align_put_bits.
  lavc: use avpriv_ prefix for ff_ac3_parse_header.
  lavc: use avpriv_ prefix for ff_frame_rate_tab.
  lavc: rename ff_find_start_code to avpriv_mpv_find_start_code
  lavc: use avpriv_ prefix for ff_split_xiph_headers.
  lavc: use avpriv_ prefix for ff_dirac_parse_sequence_header.
  lavc: use avpriv_ prefix for some dv symbols used in lavf.
  lavc: use avpriv_ prefix for some flac symbols used in lavf.
  lavc: use avpriv_ prefix for some mpeg4audio symbols used in lavf.
  lavc: use avpriv_ prefix for some mpegaudio symbols used in lavf.
  lavc: use avpriv_ prefix for ff_aac_parse_header().
  lavf: hide private symbols.
  lavf: use avpriv_ prefix for some dv functions.
  lavf: use avpriv_ prefix for ff_new_chapter().
  avcodec: add CODEC_CAP_DELAY note to avcodec_decode_audio3() documentation
  avcodec: clarify the CODEC_CAP_DELAY note in avcodec_decode_video2()
  avcodec: clarify documentation of CODEC_CAP_DELAY
  ...

Conflicts:
	configure
	doc/general.texi
	libavcodec/Makefile
	libavcodec/aacdec.c
	libavcodec/allcodecs.c
	libavcodec/avcodec.h
	libavcodec/dv.c
	libavcodec/dvdata.c
	libavcodec/dvdata.h
	libavcodec/libspeexenc.c
	libavcodec/mpegvideo.c
	libavcodec/version.h
	libavformat/avidec.c
	libavformat/dv.c
	libavformat/dv.h
	libavformat/flvenc.c
	libavformat/mov.c
	libavformat/mp3enc.c
	libavformat/oggparsespeex.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-21 02:01:26 +02:00
Anton Khirnov 242c73a0fd lavc: use avpriv_ prefix for some dv symbols used in lavf.
Specifically, ff_dv_frame_profile and ff_dv_codec_profile.
2011-10-20 21:06:58 +02:00
Michael Niedermayer 63d2cfd142 dvdec: Fix dvsd profile[1] detection.
Fixes Ticket159
If someone knows of a cleaner way to detect this, patch is welcome.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-09-02 05:21:25 +02:00
Mans Rullgard 2912e87a6c Replace FFmpeg with Libav in licence headers
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00
Diego Biurrun ba87f0801d Remove explicit filename from Doxygen @file commands.
Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.

Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-20 14:45:34 +00:00
Reimar Döffinger 10249a5f31 Split VLC-related tables out of dvdata.h to make it easier to add support
for hard-coding tables.

Originally committed as revision 22620 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-21 14:43:50 +00:00
Reimar Döffinger c76911bd65 Split parts of dvdata.h into dvdata.c, this ensures that things like
work_chunks_* and dv_idct_factor_* variables appear only once in the binary
instead of 3 times.
Saves 3264 bytes in .rodata and 312416 bytes in .bss on x86_64.

Originally committed as revision 20246 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-10-16 07:55:57 +00:00
Maksym Veremeyenko fbec307f6c Allow decoding of 625/50 (PAL) with video_stype==1.
Patch by Maksym Veremeyenko, verem m1stereo tv

Originally committed as revision 20018 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-24 19:37:41 +00:00
Baptiste Coudurier d509c743b7 check if frame size matches old sys and assumes corrupted input, fixes #1192
Originally committed as revision 19192 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-14 22:34:28 +00:00
Diego Biurrun bad5537e2c Use full internal pathname in doxygen @file directives.
Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.

Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-02-01 02:00:19 +00:00
Baptiste Coudurier a4fd53c427 fix decoding 720p50 audio samples
Originally committed as revision 16906 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-31 22:10:23 +00:00
Diego Biurrun 406792e7b0 cosmetics: Remove pointless period after copyright statement non-sentences.
Originally committed as revision 16684 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-19 15:46:40 +00:00
Roman Shaposhnik a21fd75f56 Making idct factor tables dynamically allocated
Originally committed as revision 15885 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-20 01:40:40 +00:00
Roman Shaposhnik 195b349041 Getting rid of huge static DV tables
Originally committed as revision 15874 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-18 20:48:26 +00:00
Roman Shaposhnik 2ae7e12430 Taking advantage of the new ->execute API
Originally committed as revision 15806 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-12 21:13:28 +00:00
Roman Shaposhnik c3d470b4a9 implementing more efficient (and direct) allocation of work for DV codec workers
Originally committed as revision 15788 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-11-08 00:18:00 +00:00
Diego Biurrun f94036f159 prettyprinting cosmetics
Originally committed as revision 15682 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-24 21:41:27 +00:00
Diego Biurrun 75f2c20983 spelling cosmetics
Originally committed as revision 15681 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-24 21:37:06 +00:00
Aurelien Jacobs 37d3e0667a uses FF_ARRAY_ELEMS() where appropriate
Originally committed as revision 15662 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-21 21:40:24 +00:00
Roman Shaposhnik 4e92dabf60 replacing frame_rate and frame_rate_base with an AVRational time_base
Originally committed as revision 15584 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-07 16:59:18 +00:00
Roman Shaposhnik 45580f8d4d cosmetic updates as per Michael's suggestion
Originally committed as revision 15582 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-07 16:07:15 +00:00
Roman Shaposhnik 90d30402b4 vertically aligning as per Michael's suggestion
Originally committed as revision 15581 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-07 16:06:18 +00:00
Roman Shaposhnik 2b6cee9f1e Doxygenizing the comments
Originally committed as revision 15578 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-07 15:50:29 +00:00
Diego Biurrun 910f02a054 spelling cosmetics
Originally committed as revision 15518 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-10-02 16:28:58 +00:00
Stefano Sabatini 987903826b Globally rename the header inclusion guard names.
Consistently apply this rule: the guard name is obtained from the
filename by stripping the leading "lib", converting '/' and '.'  to
'_' and uppercasing the resulting name. Guard names in the root
directory have to be prefixed by "FFMPEG_".

Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 07:39:47 +00:00