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Commit Graph

519 Commits

Author SHA1 Message Date
Michael Niedermayer
1e19927f12 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  vc1: use an enum for Frame Coding Mode
  doc: cleanup filter section
  indeo3: error out if no motion vector is set.
  x86inc: Flag shufps as an floating-point instruction for the AVX emulation code.
  mpegaudio: do not use init_static_data() for initializing tables.
  musepack: fix signed shift overflow in mpc_read_packet()
  mov: Make format string match variable type.
  wmavoice: Make format string match variable type.
  vc1: select interlaced scan table by FCM element
  Generalize RIFF INFO tag support; support reading INFO tag in wav
  pthread: track thread existence in a separate variable.

Conflicts:
	doc/filters.texi
	libavcodec/pthread.c
	libavformat/avi.c
	libavformat/riff.c
	libavformat/riff.h
	libavformat/wav.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-28 01:07:11 +01:00
Victor Vasiliev
12bc20502a Generalize RIFF INFO tag support; support reading INFO tag in wav
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-11-26 17:14:13 -08:00
Michael Niedermayer
5c15b78e4a Merge remote-tracking branch 'qatar/master'
* qatar/master: (42 commits)
  swscale: fix signed overflow in yuv2mono_X_c_template
  snow: fix integer overflows
  svq1enc: remove stale altivec-related hack
  snow: fix signed overflow in byte to 32-bit replication
  adx: rename ff_adx_decode_header() to avpriv_adx_decode_header()
  avformat: add CRI ADX format demuxer
  adx: add an ADX parser.
  adx: move header decoding to ADX common code
  adx: calculate the number of blocks in a packet
  adx: define and use 2 new macro constants BLOCK_SIZE and BLOCK_SAMPLES
  adx: check for unsupported ADX formats
  adx: simplify encoding by using put_sbits()
  adx: calculate correct LPC coeffs
  adx: use 12-bit coefficients instead of 14-bit to avoid integer overflow
  adx: simplify adx_decode() by using get_sbits() to read residual samples
  adx: fix the data offset parsing in adx_decode_header()
  adx: remove unneeded post-decode channel interleaving
  adx: validate header values
  adx: cosmetics: general pretty-printing and comment clean-up
  adx: remove useless comments
  ...

Conflicts:
	Changelog
	libavcodec/cook.c
	libavcodec/fraps.c
	libavcodec/nuv.c
	libavcodec/pthread.c
	libavcodec/version.h
	libavformat/Makefile
	libavformat/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-27 00:30:13 +01:00
Justin Ruggles
a17c3c7d15 avformat: add CRI ADX format demuxer 2011-11-26 16:25:07 -05:00
Michael Niedermayer
34465bbcb4 Merge remote-tracking branch 'shariman/wmall'
* shariman/wmall: (24 commits)
  Clean-up
  dump_int_buffer() to dump samples from a buffer
  Implement revert_cdlms()
  Doxy for reset_codec()
  Store transient state and position of transient area
  Implement use_high_update_speed() and use_normal_update_speed()
  Initialize num_logged_tiles and remove unnecessary codes
  Log index for each line of output
  Log tile size
  Output decoded residues
  Replace placeholders with actual calls to clear_codec_buffers() and reset_codec()
  Implement lms_update()
  Implement lms_predict()
  Implement reset_codec()
  Add missing syntax elements to WmallDecodeCtx
  Add .recent syntax element to cdlms struct
  Implement clear_codec_buffers()
  Add buffers to context necessary for reverting cdmls and mclms filter
  Use avpriv_copy_bits() instead of ff_copy_bits()
  Cosmetics
  ...

Conflicts:
	libavcodec/wmalosslessdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-20 15:43:19 +01:00
Martin Storsjö
66e9c0b6ab httpproxy: Specify the object files needed in the Makefile
Signed-off-by: Martin Storsjö <martin@martin.st>
2011-11-20 09:41:43 +02:00
Michael Niedermayer
46eae15567 mkvtimestamp v2 muxer: rename so as to avoid confusion with SMPTE timecodes.
Requested-by: Baptiste Coudurier
Approved-by: David Conrad
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 05:19:28 +01:00
Michael Niedermayer
0bd42ae72c Merge remote-tracking branch 'qatar/master'
* qatar/master:
  avformat: Avoid a warning about mixed declarations and code
  BMV demuxer and decoder
  matroskaenc: Make sure the seekhead struct is freed even on seek failure
  mpeg12enc: Remove write-only variables.
  mpeg12enc: Don't set up run-level info for level 0.
  msmpeg4: Don't set up run-level info for level 0.
  avformat: Warn about using network functions without calling avformat_network_init
  avformat: Revise wording
  rdt: Set AVFMT_NOFILE on ff_rdt_demuxer
  rdt: Check the return value of avformat_open
  rtsp: Discard the dynamic handler, if it has an alloc function which failed
  dsputil: use cpuflags in x86 versions of vector_clip_int32()

Conflicts:
	libavcodec/avcodec.h
	libavcodec/version.h
	libavformat/Makefile
	libavformat/allformats.c
	libavformat/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-08 02:03:14 +01:00
Kostya Shishkov
f545e00677 BMV demuxer and decoder
Signed-off-by: Martin Storsjö <martin@martin.st>
2011-11-08 00:36:45 +02:00
Miroslav Slugeň
df9c1cfb48 libavformat: add support for G726 audio decoder in RTP and RTSP streams
Fixes Ticket611

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-07 21:55:34 +01:00
Michael Niedermayer
d8cab5c26b Merge remote-tracking branch 'qatar/master'
* qatar/master:
  http: Remove the custom function for disabling chunked posts
  rtsp: Disable chunked http post through AVOptions
  movdec: Set frame_size for AMR
  h264_weight: remove duplication functions.
  swscale: align vertical filtersize by 2 on x86.
  libavfilter: reindent.
  matroskadec: empty blocks are in fact valid.
  avfilter: don't abort() on zero-size allocations.
  h264: improve calculation of codec delay.
  movenc: Set a correct packet size for AMR-NB mode 15, "no data"
  avformat: Add functions for doing global network initialization
  avformat: Add the https protocol
  avformat: Add the tls protocol, using OpenSSL or gnutls
  avformat: Initialize gnutls in ff_tls_init()
  w32threads: Wrap the mutex functions in inline functions returning int
  configure: Allow linking to the gnutls library
  avformat: Add ff_tls_init()/deinit() that initialize OpenSSL
  configure: Allow linking to openssl
  avcodec: Allow locking and unlocking an avformat specific mutex
  avformat: Split out functions from network.h to a new file, network.c

Conflicts:
	Changelog
	configure
	doc/APIchanges
	libavcodec/internal.h
	libavcodec/version.h
	libavfilter/formats.c
	libavformat/matroskadec.c
	libavformat/mov.c
	libavformat/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-06 02:23:34 +01:00
Peter Ross
42b5a6f634 wtvenc: use ff_put_guid and remove local copy of this function
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-05 16:51:26 +01:00
Martin Storsjö
183baeadca avformat: Add the https protocol
Signed-off-by: Martin Storsjö <martin@martin.st>
2011-11-05 12:09:36 +02:00
Martin Storsjö
558d192d23 avformat: Add the tls protocol, using OpenSSL or gnutls
Note, this protocol doesn't yet check verify the server
certificate against a local database of trusted CA root
certificates.

Signed-off-by: Martin Storsjö <martin@martin.st>
2011-11-05 12:09:30 +02:00
Martin Storsjö
f6d3710096 avformat: Split out functions from network.h to a new file, network.c
Signed-off-by: Martin Storsjö <martin@martin.st>
2011-11-05 12:08:47 +02:00
Michael Niedermayer
988f585fcb Merge remote-tracking branch 'qatar/master'
* qatar/master: (44 commits)
  replacement Indeo 3 decoder
  gsm demuxer: do not allocate packet twice.
  flvenc: use first packet delay as global delay.
  ac3enc: doxygen update.
  imc: return error codes instead of 0 for error conditions.
  imc: return meaningful error codes instead of -1
  imc: do not set channel layout for stereo
  imc: validate channel count
  imc: check for ff_fft_init() failure
  imc: check output buffer size before decoding
  imc: use DSPContext.bswap16_buf() to byte-swap packet data
  rtsp: add allowed_media_types option
  libgsm: add flush function to reset the decoder state when seeking
  libgsm: simplify decoding by using a loop
  gsm: log error message when packet is too small
  libgsmdec: do not needlessly set *data_size to 0
  gsmdec: do not needlessly set *data_size to 0
  gsmdec: add flush function to reset the decoder state when seeking
  libgsmdec: check output buffer size before decoding
  gsmdec: log error message when output buffer is too small.
  ...

Conflicts:
	Changelog
	ffplay.c
	libavcodec/indeo3.c
	libavcodec/mjpeg_parser.c
	libavcodec/vp3.c
	libavformat/cutils.c
	libavformat/id3v2.c
	libavutil/parseutils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-03 02:16:26 +01:00
Justin Ruggles
87c57d807f Create separate functions for the raw GSM demuxer.
Put the new raw GSM demuxer in its own file.
Fixes raw GSM demuxing.
2011-11-02 14:41:16 -04:00
Vladimir Voroshilov
0fd59f1d45 Minimal patch for G.729 demuxer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-29 22:08:25 +02:00
David Conrad
1c5670dbb2 Timecode v2 muxer
(cherry picked from commit 79ca161498744330ac940ae773dda3f1796ce955)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-27 01:03:22 +02:00
Michael Niedermayer
2b0cdb7364 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  Move id3v2 tag writing to a separate file.
  swscale: add missing colons to x86 assembly yuv2planeX.
  g722: split decoder and encoder into separate files
  cosmetics: remove extra spaces before end-of-statement semi-colons
  vorbisdec: check output buffer size before writing output
  wavpack: calculate bpp using av_get_bytes_per_sample()
  ac3enc: Set max value for mode options correctly
  lavc: move get_b_cbp() from h263.h to mpeg4videoenc.c
  mpeg12: move closed_gop from MpegEncContext to Mpeg1Context
  mpeg12: move full_pel from MpegEncContext to Mpeg1Context
  mpeg12: move Mpeg1Context from mpeg12.c to mpeg12.h
  mpegvideo: remove some unused variables from MpegEncContext.

Conflicts:
	libavcodec/mpeg12.c
	libavformat/mp3enc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-24 01:01:21 +02:00
Michael Karcher
16ad77b357 Move id3v2 tag writing to a separate file.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2011-10-23 19:17:53 +02:00
Michael Niedermayer
aedc908601 Merge remote-tracking branch 'qatar/master'
* qatar/master: (35 commits)
  flvdec: Do not call parse_keyframes_index with a NULL stream
  libspeexdec: include system headers before local headers
  libspeexdec: return meaningful error codes
  libspeexdec: cosmetics: reindent
  libspeexdec: decode one frame at a time.
  swscale: fix signed shift overflows in ff_yuv2rgb_c_init_tables()
  Move timefilter code from lavf to lavd.
  mov: add support for hdvd and pgapmetadata atoms
  mov: rename function _stik, some indentation cosmetics
  mov: rename function _int8 to remove ambiguity, some indentation cosmetics
  mov: parse the gnre atom
  mp3on4: check for allocation failures in decode_init_mp3on4()
  mp3on4: create a separate flush function for MP3onMP4.
  mp3on4: ensure that the frame channel count does not exceed the codec channel count.
  mp3on4: set channel layout
  mp3on4: fix the output channel order
  mp3on4: allocate temp buffer with av_malloc() instead of on the stack.
  mp3on4: copy MPADSPContext from first context to all contexts.
  fmtconvert: port float_to_int16_interleave() 2-channel x86 inline asm to yasm
  fmtconvert: port int32_to_float_fmul_scalar() x86 inline asm to yasm
  ...

Conflicts:
	libavcodec/arm/h264dsp_init_arm.c
	libavcodec/h264.c
	libavcodec/h264.h
	libavcodec/h264_cabac.c
	libavcodec/h264_cavlc.c
	libavcodec/h264_ps.c
	libavcodec/h264dsp_template.c
	libavcodec/h264idct_template.c
	libavcodec/h264pred.c
	libavcodec/h264pred_template.c
	libavcodec/x86/h264dsp_mmx.c
	libavdevice/Makefile
	libavdevice/jack_audio.c
	libavformat/Makefile
	libavformat/flvdec.c
	libavformat/flvenc.c
	libavutil/pixfmt.h
	libswscale/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-22 01:16:41 +02:00
Anton Khirnov
5dd35b43f1 Move timefilter code from lavf to lavd.
It's only used in the JACK device.

Fixes linking shared lavd with JACK enabled.
2011-10-21 20:29:05 +02:00
Michael Niedermayer
52673ab18a Merge remote-tracking branch 'luzero/segment'
* luzero/segment:
  segment: extend options
  segment: basic pattern support and playlist output
  segment: introduce segmented chain muxer
  output-example: extend duration
  ratecontrol: estimate twice the qscale values

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-17 03:38:47 +02:00
Michael Niedermayer
e9f62a8b2b add cache protocol
This allows backward seeking on top of some non seekable streams.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-16 17:12:37 +02:00
Mohamed Naufal
4d518f1230 g723.1: use raw muxer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-13 16:50:20 +02:00
Luca Barbato
82df8c3997 segment: introduce segmented chain muxer
Initial test code, the filename isn't yet guessed and the file index
isn't printed yet.
2011-10-12 17:03:52 +02:00
Mohamed Naufal
19562b68cb g723.1 muxer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-10 02:58:18 +02:00
Clément Bœsch
26c7ff9317 Add libmodplug support. 2011-10-04 22:36:33 +02:00
Mohamed Naufal Basheer
f990dc374e Add the G723.1 demuxer and decoder 2011-09-29 21:44:03 +02:00
Nicolas George
4ca59d1948 oggdec: add support for Xiph's CELT codec
This patch also introduces CODEC_ID_CELT.

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2011-09-26 13:51:29 +02:00
Vladimir Voroshilov
5df643c5df G.729 .bit file demuxer 2011-09-24 21:11:01 +02:00
Vladimir Voroshilov
6080553e6e ACT demuxer 2011-09-24 21:11:01 +02:00
Michael Niedermayer
28d3738428 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  Add LATM demuxer
  avplay: flush audio decoder with empty packets at EOF if the decoder has CODEC_CAP_DELAY set.
  8svx/iff: fix decoding of compressed stereo 8svx files.
  8svx: log an error message if output buffer is too small
  8svx: check packet size before reading the initial sample value.
  8svx: output 8-bit samples instead of 16-bit.
  8svx: split delta decoding into a separate function.
  mp4: Don't read an empty Decoder Config Descriptor
  fate.sh: Ignore errors from rm command during cleanup.
  fate.sh: Run git-pull in quiet mode to avoid console spam.
  Apple ProRes decoder
  rtmp: Make the input FLV parser handle data cut at any point
  rv34: Check for invalid slices offsets
  eval: test isnan(sqrt(-1)) instead of just sqrt(-1)

Conflicts:
	Changelog
	libavcodec/8svx.c
	libavcodec/proresdec.c
	libavcodec/version.h
	libavformat/iff.c
	libavformat/version.h
	tests/ref/fate/eval

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-09-23 00:35:31 +02:00
Janne Grunau
dcb9f6a20d Add LATM demuxer
This is a raw demuxer for the AAC LATM decoder and thus limited to
single stream LOAS.
2011-09-22 20:39:24 +02:00
Peter Ross
07a70caba7 Binary text decoder
Decoder and demuxer for various binary text formats.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-09-16 05:53:14 +02:00
zhentan feng
438debd095 WTV muxer (2_wtvenc.patch, 3_add_wtv_muxer.patch) 2011-09-14 00:41:25 +02:00
Michael Niedermayer
f1b5693027 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  Add LATM muxer
  v210enc: clip values according to specifications
  v210enc: switch to PIX_FMT_422P10
  v210dec: switch to PIX_FMT_422P10
  AVOptions: remove AVOption.offset <= 0 checks
  AVOptions: deprecate av_opt_set_defaults2
  AVOptions: move doxy for av_opt_set_defaults() from opt.c to opt.h
  libx264: fix setting some more parameters
  libx264: fix setting the H.264 level
  libx264: add 'direct-pred' private option
  libx264: add 'partitions' private option

Conflicts:
	Changelog
	libavcodec/Makefile
	libavcodec/libx264.c
	libavcodec/v210enc.c
	libavfilter/src_movie.c
	libavformat/version.h
	libavutil/opt.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-09-07 22:58:39 +02:00
Kieran Kunhya
0ca36b4de7 Add LATM muxer
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
2011-09-07 12:57:55 +02:00
Carl Eugen Hoyos
47818b2a67 Add LOAS demuxer. 2011-08-20 00:27:38 +02:00
Michael Niedermayer
edae3dbf1d Merge remote-tracking branch 'qatar/master'
* qatar/master: (23 commits)
  h264: hide reference frame errors unless requested
  swscale: split hScale() function pointer into h[cy]Scale().
  Move clipd macros to x86util.asm.
  avconv: reindent.
  avconv: rescue poor abused start_time global.
  avconv: rescue poor abused recording_time global.
  avconv: merge two loops in output_packet().
  avconv: fix broken indentation.
  avconv: get rid of the arbitrary MAX_FILES limit.
  avconv: get rid of the output_streams_for_file vs. ost_table schizophrenia
  avconv: add a wrapper for output AVFormatContexts and merge output_opts into it
  avconv: make itsscale syntax consistent with other options.
  avconv: factor out adding input streams.
  avconv: Factorize combining auto vsync with format.
  avconv: Factorize video resampling.
  avconv: Don't unnecessarily convert ipts to a double.
  ffmpeg: remove unsed variable nopts
  RV3/4 parser: remove unused variable 'off'
  add XMV demuxer
  rmdec: parse FPS in RealMedia properly
  ...

Conflicts:
	avconv.c
	libavformat/version.h
	libswscale/swscale.c
	tests/ref/fate/lmlm4-demux

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-08-18 10:56:08 +02:00
Sven Hesse
c6c6c1aaa6 add XMV demuxer
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2011-08-17 15:04:37 +02:00
Michael Niedermayer
80e4fe4063 Merge commit 'b5849f77095439e994b11c25e6063d443b36c228'
* commit 'b5849f77095439e994b11c25e6063d443b36c228': (21 commits)
  ac3enc: merge AC3MDCTContext with AC3EncodeContext.
  ac3enc: prefer passing AC3EncodeContext rather than AVCodecContext
  ac3enc: fix memleak
  mpeg1video: add CODEC_CAP_SLICE_THREADS.
  lavf: fix segfault in av_open_input_stream()
  mpegtsenc: set Random Access indicator on keyframe start packets
  lavf: Cleanup try_decode_frame() logic.
  Replace some gotos that lead to single return statements by direct return.
  build: move tests/seek_test.c to libavformat and reuse generic build rules
  mxfenc: include needed header for ff_iso8601_to_unix_time() prototype
  Add a check for strptime().
  lavf: factor out conversion of ISO8601 string to unix time
  wav: parse 'bext' metadata
  wav: keep parsing until EOF if the input is seekable and we know the size of the data tag
  wav: Refactor the tag checking into a switch statement
  wav: make sure neither data_size nor sample_count is negative.
  wav: refactor the 'fmt ' tag search and parsing.
  wav: add an option for writing BEXT chunk
  ffmpeg: get rid of a pointless limit on number of streams.
  ffmpeg: remove an unused define.
  ...

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-07-14 02:24:10 +02:00
Diego Biurrun
191c5f8ff3 build: move tests/seek_test.c to libavformat and reuse generic build rules 2011-07-13 13:27:15 +02:00
Michael Niedermayer
3602ad7ee6 Merge commit '142e76f1055de5dde44696e71a5f63f2cb11dedf'
* commit '142e76f1055de5dde44696e71a5f63f2cb11dedf':
  swscale: fix crash with dithering due incorrect offset calculation.
  matroskadec: fix stupid typo (!= -> ==)
  build: remove duplicates from order-only directory prerequisite list
  build: rework rules for things in the tools dir
  configure: fix --cpu=host with gcc 4.6
  ARM: use const macro to define constant data in asm
  bitdepth: simplify FUNC/FUNCC macros
  dsputil: remove ff_emulated_edge_mc macro used in one place
  9/10-bit: simplify clipping macros
  matroskadec: reindent
  matroskadec: defer parsing of cues element until we seek.
  lavc: add support for codec-specific defaults.
  lavc: make avcodec_alloc_context3 officially public.
  lavc: remove a half-working attempt at different defaults for audio/video codecs.
  ac3dec: add a drc_scale private option
  lavf: add avformat_find_stream_info()
  lavc: introduce avcodec_open2() as a replacement for avcodec_open().

Conflicts:
	Makefile
	libavcodec/utils.c
	libavformat/avformat.h
	libswscale/swscale_internal.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-07-11 04:23:25 +02:00
Mans Rullgard
28e1c97916 build: rework rules for things in the tools dir
Declaring tools associated with each library in their respective
makefiles allows these tools to easily depend on the correct
prerequisites and link against the libs they need.

Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-07-10 21:13:38 +01:00
Stefano Sabatini
a953577b46 examples: move metadata-example.c to doc/examples 2011-07-08 09:40:30 +02:00
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
Reinhard Tartler
12489443de libavformat: Add an example how to use the metadata API
Also include it into the doxygen documentation
2011-07-02 13:52:29 +02:00
Nicolas George
5d35b279e2 ALSA demuxer: use av_gettime and a timefilter.
The PTS for captured audio was measured using snd_pcm_htimestamp.

snd_pcm_htimestamp hangs when the input is a dsnoop plugin.

Furthermore, at some point, snd_pcm_htimestamp started returning monotonic
timestamps rather than wall clock timestamps, in most but not all
situations.
Monotonic timestamps are fine, but ffmpeg uses wall clock timestamps
everywhere else, and we have no API to inform the user which kind of
timestamps it is.

A separate snd_pcm_htimestamp is only slightly less accurate than
snd_pcm_htimestamp: the standard deviation for the difference between two
consecutive timestamps is (on my hardware):
- ~13 µs with snd_pcm_htimestamp;
- ~35 µs with av_gettime;
-  ~5 µs with av_gettime and a timefilter.
2011-07-02 10:43:38 +02:00