Commit Graph

54 Commits

Author SHA1 Message Date
gg0907
65994f5530 upgrade to 4.4.1
Signed-off-by: gg0907 <guohui_1701@163.com>
2022-05-23 11:23:35 +08:00
Andreas Rheinhardt
27522fb64c avcodec/put_bits: Relax requirements to rebase PutBitContext
The earlier requirement was for the new buffer to be bigger than the old
one. This has been relaxed to only demand that the new buffer can hold
all the data written so far. This is in preparation for further commits.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2019-11-16 20:57:45 +01:00
Carl Eugen Hoyos
898ea658c8 lavc/g726: Add a little-endian G.726 encoder.
Fixes ticket #6596.
2017-08-21 16:19:58 +02:00
Jun Zhao
2b7d9a1f3f lavc/put_bits: Add put_bits64() to support up to 64 bits.
put_bits64() can write up to 64 bits into a bitstream.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-06-24 22:17:15 +02:00
Michael Niedermayer
4f9e958b04 avcodec/put_bits: Implement put_bits32() in a single pass instead of 2 passes writing 16bits each
820 cpu cycles -> 660 cpu cycles for 100 put_bits32()

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-06-13 04:17:13 +02:00
Michael Niedermayer
3ef5de0f19 avcodec/put_bits: Assert buf_ptr in flush_put_bits()
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-01-18 19:56:37 +01:00
Michael Niedermayer
cccb0ffccc avcodec/put_bits: Always check buffer end before writing
This causes a overall slowdown of 0.1 % (tested with mpeg4 single thread encoding of matrixbench at QP=3)

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-01-02 19:23:10 +01:00
Michael Niedermayer
bd46e78aa4 avcodec/put_bits: Assert that size in set_put_bits_buffer_size() does not cause integer overflows
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-25 05:31:26 +02:00
Michael Niedermayer
8f5ffed183 avcodec/put_bits: Assert that there is enough space left in skip_put_bytes()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-25 05:14:02 +02:00
Michael Niedermayer
e4c2ec879b avcodec/put_bits: Update size_in_bits in set_put_bits_buffer_size()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-25 04:55:37 +02:00
Michael Niedermayer
c347f75d6b avcodec/put_bits: Remove dead code in put_bits()
Fixes CID1297574

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-15 16:19:53 +02:00
James Almer
ba625dd8a1 avcodec: use av_mod_uintp2() where useful
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
2015-04-21 22:41:20 -03:00
Paul B Mahol
01a3c5dae0 avcodec/put_bits: remove unneeded #include, there are no assert()
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-02-01 11:15:20 +00:00
Michael Niedermayer
cf32181b70 avcodec/put_bits: Add rebase_put_bits()
Reviewed-by: Benoit Fouet <benoit.fouet@free.fr>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-09-29 15:22:37 +02:00
Michael Niedermayer
efc4439c89 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  put_bits: Remove unused includes

Conflicts:
	libavcodec/put_bits.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-04 15:09:58 +01:00
Vittorio Giovara
973dc4e8d4 put_bits: Remove unused includes
This requires adding includes to other files that relied on these being
included implicitly.
2014-03-04 11:45:32 +01:00
Michael Niedermayer
c1343897c3 Merge commit 'afe03092dd693d025d43e1620283d8d285c92772'
* commit 'afe03092dd693d025d43e1620283d8d285c92772':
  lavc: move put_bits_left in put_bits.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-06-29 10:59:04 +02:00
Luca Barbato
afe03092dd lavc: move put_bits_left in put_bits.h 2013-06-28 13:14:12 +02:00
Michael Niedermayer
766f055201 Merge commit '4af5310d29379283553bcd9f541a3f6c317f706e'
* commit '4af5310d29379283553bcd9f541a3f6c317f706e':
  get_bits/put_bits: K&R formatting cosmetics

Conflicts:
	libavcodec/get_bits.h
	libavcodec/put_bits.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-22 13:49:45 +01:00
Diego Biurrun
4af5310d29 get_bits/put_bits: K&R formatting cosmetics
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2013-01-21 17:03:41 +01:00
Michael Niedermayer
31ab1575e5 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  avcodec: Convert some commented-out printf/av_log instances to av_dlog
  avcodec: Drop silly and/or broken printf debug output
  avcodec: Drop some silly commented-out av_log() invocations
  avformat: Convert some commented-out printf/av_log instances to av_dlog
  avformat: Remove non-compiling and/or silly commented-out printf/av_log statements
  Remove some silly disabled code.
  ac3dec: ensure get_buffer() gets a buffer for the correct number of channels

Conflicts:
	libavcodec/dnxhddec.c
	libavcodec/ffv1.c
	libavcodec/h264.c
	libavcodec/h264_parser.c
	libavcodec/mjpegdec.c
	libavcodec/motion_est_template.c
	libavcodec/mpegaudiodec.c
	libavcodec/mpegvideo_enc.c
	libavcodec/put_bits.h
	libavcodec/ratecontrol.c
	libavcodec/wmaenc.c
	libavdevice/timefilter.c
	libavformat/asfdec.c
	libavformat/avidec.c
	libavformat/avienc.c
	libavformat/flvenc.c
	libavformat/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-01 16:12:38 +02:00
Diego Biurrun
9c6cf7f2c9 avcodec: Drop silly and/or broken printf debug output 2012-10-01 10:24:28 +02:00
Michael Niedermayer
bff2afb3e9 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  x86: dsputil: Only compile motion_est code when encoders are enabled
  mem: fix typo in check for __ICC
  fate: mp3: drop redundant CMP setting
  rtp: Depacketization of JPEG (RFC 2435)
  Rename ff_put_string to avpriv_put_string
  mjpeg: Rename some symbols to avpriv_* instead of ff_*
  yadif: cosmetics

Conflicts:
	Changelog
	libavcodec/mjpegenc.c
	libavcodec/x86/Makefile
	libavfilter/vf_yadif.c
	libavformat/version.h
	libavutil/mem.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-10 14:06:20 +02:00
Martin Storsjö
aefea4d0de Rename ff_put_string to avpriv_put_string
This allows using it from libavformat as well. This will be used
by the RTP/JPEG depacketizer.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-09 22:22:12 +03:00
Michael Niedermayer
62eace231c put_bits: use av_assert
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-06-06 21:18:14 +02:00
Michael Niedermayer
d3b0fb1048 put_bits: add av_assert2() to check out of array writes.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-07 19:58:59 +02:00
Michael Niedermayer
ab553612e7 put_bits: switch assert to av_assert2()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-04-07 07:58:16 +02:00
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
9f51c682ee lavc: use avpriv_ prefix for ff_copy_bits and align_put_bits.
They are used in lavf.
2011-10-20 21:06:58 +02:00
Michael Niedermayer
c5db8b4d09 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  lavf: fix signed overflow in avformat_find_stream_info()
  vp8: fix signed overflows
  motion_est: fix some signed overflows
  dca: fix signed overflow in shift
  aacdec: fix undefined shifts
  bink: Check for various out of bound writes
  bink: Check for out of bound writes when building tree
  put_bits: fix invalid shift by 32 in flush_put_bits()

Conflicts:
	libavcodec/bink.c
	libavformat/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-09 04:02:03 +02:00
Mans Rullgard
ac6eab1496 put_bits: fix invalid shift by 32 in flush_put_bits()
If flush_put_bits() is called when the 32-bit buffer is empty,
e.g. after writing a multiple of 32 bits, and invalid shift by
32 is performed.  Since flush_put_bits() is called infrequently,
this additional check should have negligible performance impact.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-10-08 02:41:58 +01:00
Michael Niedermayer
cbfdfbe846 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  ARM: ac3: update ff_ac3_extract_exponents_neon per 8b7b2d6
  ARM: NEON optimised vector_clip_int32()
  swscale: disable full_chroma_int when converting to non-24/32bpp RGB.
  suggest to use av_get_bytes_per_sample() in av_get_bits_per_sample_format() doxy
  ffmpeg: use av_get_bytes_per_sample() in place of av_get_bits_per_sample_fmt()
  put_bits: remove ALT_BITSTREAM_WRITER
  put_bits: always use intreadwrite.h macros
  libavformat: Add an example how to use the metadata API
  doxygen: Prefer member groups over grouping into modules
  doxygen: be more permissive when searching for API examples
  avformat: doxify the Metadata API
  lavf: restore old behavior for custom AVIOContex with an AVFMT_NOFILE format.
  lavf: use the correct pointer in av_open_input_stream().
  avidec: infer absolute vs relative index from first packet

Conflicts:
	libavformat/Makefile
	libavformat/avidec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-07-03 03:14:10 +02:00
Mans Rullgard
0d5c349ac4 put_bits: remove ALT_BITSTREAM_WRITER
The code for this variant does not compile.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-07-02 16:25:27 +01:00
Mans Rullgard
30b05520c8 put_bits: always use intreadwrite.h macros
This fixes invalid unaligned stores in some ARM configurations.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-07-02 16:25:27 +01:00
Michael Niedermayer
46eb300d01 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  ARM: remove MULL inline asm
  mathops: use MUL64 macro where it forms part of other ops
  tty: factorise returning error codes.
  rawdec: add framerate private option.
  x11grab: add framerate private option.
  fbdev,v4l2: remove some forgotten uses of AVFormatParameters.time_base.
  bktr: don't error when AVFormatParameters.time_base isn't set.
  cmdutils: add missing const qualifier
  Skip headers not designed to work standalone during 'make checkheaders'.
  Add missing #includes to make headers self-contained.
  musepack: remove unnecessary #include from mpcdata.h
  musepack: remove extraneous mpcdata.h inclusions
  Fix error check in av_file_map()

Conflicts:
	cmdutils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-06-05 03:00:31 +02:00
Diego Biurrun
8d459acc10 Add missing #includes to make headers self-contained.
This fixes 'make checkheaders'.
2011-06-04 18:15:50 +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
Måns Rullgård
8fc0162ac4 Add av_ prefix to bswap macros
Originally committed as revision 24170 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-10 22:12:30 +00:00
Måns Rullgård
e6b22522c9 bswap: change ME to NE in macro names
Other parts of FFmpeg use NE (native endian) rather than ME (machine).
This makes it consistent.

Originally committed as revision 24169 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-10 22:09:01 +00:00
Måns Rullgård
49bd8e4b84 Fix grammar errors in documentation
Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-30 15:38:06 +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
7f6458a700 Make sure that compilation fails if functions like ff_put_string are used in code
that  selected a bitstream writer for which they do not work.

Originally committed as revision 20761 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-07 21:06:51 +00:00
Baptiste Coudurier
28f2db9670 fix typo, ALT_BITSTREAM_WRITER_LE does not exist
Originally committed as revision 20692 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-12-01 22:35:25 +00:00
Stefano Sabatini
5f1836a7de Rename parameters of put_sbits() to make them consistent with those of
put_bits().

Originally committed as revision 20677 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-30 23:52:28 +00:00
Stefano Sabatini
587edd6af8 Use more consistent / meaningful parameter names for the
ff_copy_bits() function.

Originally committed as revision 20663 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-29 23:01:29 +00:00
Stefano Sabatini
8d872e8ac9 Fix put_bits32() doxy.
Originally committed as revision 20639 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-28 10:58:07 +00:00
Stefano Sabatini
643570d6bb Consistently put braces for function definitions.
Originally committed as revision 20638 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-28 10:21:10 +00:00
Stefano Sabatini
e74223610b Fix typo, "Write" -> "Writes".
Originally committed as revision 20637 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-11-28 10:17:43 +00:00
Reimar Döffinger
43d7c6118d put_bits can only reliably write up to 31 bit bits, above it relies on
undefined shift behaviour.
Document this, fix the assert and add a put_bits32 to handle writing 32
bits and use that where necessary.

Originally committed as revision 20124 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-10-01 15:40:29 +00:00
Stefano Sabatini
bf7e799c9e Remove '\p', '\c' and '\e' doxygen markup from doxy, as it should
improve plain text doxy readability.

See the thread: "[RFC] Should we use doxygen markup?".

Originally committed as revision 19122 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-06-06 09:35:15 +00:00