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Commit Graph

53 Commits

Author SHA1 Message Date
Derek Buitenhuis
6f69f7a8bf Merge commit '9200514ad8717c63f82101dc394f4378854325bf'
* commit '9200514ad8717c63f82101dc394f4378854325bf':
  lavf: replace AVStream.codec with AVStream.codecpar

This has been a HUGE effort from:
    - Derek Buitenhuis <derek.buitenhuis@gmail.com>
    - Hendrik Leppkes <h.leppkes@gmail.com>
    - wm4 <nfxjfg@googlemail.com>
    - Clément Bœsch <clement@stupeflix.com>
    - James Almer <jamrial@gmail.com>
    - Michael Niedermayer <michael@niedermayer.cc>
    - Rostislav Pehlivanov <atomnuker@gmail.com>

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
2016-04-10 20:59:55 +01:00
Anton Khirnov
9200514ad8 lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.

In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.

There are multiple important problems with this approach:
    - the fields in AVCodecContext are in general one of
        * stream parameters
        * codec options
        * codec state
      However, it's not clear which ones are which. It is consequently
      unclear which fields are a demuxer allowed to set or a muxer allowed to
      read. This leads to erratic behaviour depending on whether decoding or
      encoding is being performed or not (and whether it uses the AVStream
      embedded codec context).
    - various synchronization issues arising from the fact that the same
      context is used by several different APIs (muxers/demuxers,
      parsers, bitstream filters and encoders/decoders) simultaneously, with
      there being no clear rules for who can modify what and the different
      processes being typically delayed with respect to each other.
    - avformat_find_stream_info() making it necessary to support opening
      and closing a single codec context multiple times, thus
      complicating the semantics of freeing various allocated objects in the
      codec context.

Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
2016-02-23 17:01:58 +01:00
Andreas Cadhalpun
1bf76cd2db rtpenc_chain: also copy AVFMT_FLAG_BITEXACT to new AVFormatContext
Otherwise it is impossible to make '-movflags +rtphint' bitexact after
FF_API_LAVF_BITEXACT has been disabled.

Reviewed-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
2015-08-23 23:35:38 +02:00
Michael Niedermayer
7f03f75ce7 Merge commit '8e32b1f0963d01d4f5d4803eb721f162e0d58d9a'
* commit '8e32b1f0963d01d4f5d4803eb721f162e0d58d9a':
  libavformat: Use ffio_free_dyn_buf where applicable

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-02-25 00:48:50 +01:00
Martin Storsjö
8e32b1f096 libavformat: Use ffio_free_dyn_buf where applicable
Signed-off-by: Martin Storsjö <martin@martin.st>
2015-02-24 23:07:47 +02:00
Michael Niedermayer
f9ddaa35c7 avformat/rtpenc_chain: Use avio_closep() to avoid leaving stale pointers in memory
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-01-08 20:19:20 +01:00
Michael Niedermayer
986f63d17f Merge commit '2bb2c2bd75e5f4b28a945511cda77e0a1a44c758'
* commit '2bb2c2bd75e5f4b28a945511cda77e0a1a44c758':
  rtpenc_chain: Pass the initial time_base hint on to the chained muxer

See: [FFmpeg-devel] [PATCH] avformat/rtpenc_chain: Set timebase
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-09-18 02:14:53 +02:00
Martin Storsjö
2bb2c2bd75 rtpenc_chain: Pass the initial time_base hint on to the chained muxer
In practice this hint is ignored - the rtp muxer always overwrites
the stream time base without taking the hint into account. But as
a general practice this is the correct way to pass a time base hint
on to a chained muxer.

This avoids warnings about using the codec time base as hint
being deprecated.

Signed-off-by: Martin Storsjö <martin@martin.st>
2014-09-17 22:53:27 +03:00
Michael Niedermayer
8c895ae73f Merge commit 'f797b134cad4d248b1c8955659997980d0668bc3'
* commit 'f797b134cad4d248b1c8955659997980d0668bc3':
  rtpenc_chain: Don't copy the time base to the source stream by default

See: 1fe40e1b05
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-05-31 12:53:46 +02:00
Martin Storsjö
f797b134ca rtpenc_chain: Don't copy the time base to the source stream by default
Only copy it manually in the muxers where it makes sense (rtspenc,
sapenc). Don't touch the original AVStream in movenchint, where
the original AVStream should be kept untouched.

This fixes the normal tracks in RTP hinted files after
abb810db - the hint tracks were ok while the normal media tracks
were broken, noticed by Michael Niedermayer.

This reverts abb810db but achieves the same effect for the other
muxers.

Signed-off-by: Martin Storsjö <martin@martin.st>
2014-05-31 12:02:23 +03:00
Michael Niedermayer
692757062a Merge commit 'abb810db036628e11a5171134ebe320b187ee6d6'
* commit 'abb810db036628e11a5171134ebe320b187ee6d6':
  Revert "rtpenc_chain: Don't copy the time_base back to the caller"

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-05-30 22:03:51 +02:00
Martin Storsjö
abb810db03 Revert "rtpenc_chain: Don't copy the time_base back to the caller"
While it strictly isn't necessary to copy the time base (since
any use of it is scaled in ff_write_chained), it still is better
to signal the actual time base to the caller, avoiding one
unnecessary rescaling. This also lets the caller know what the
actual internal time base is, in case that is useful info
for some caller.

This reverts commit 397ffde115.

Signed-off-by: Martin Storsjö <martin@martin.st>
2014-05-30 22:45:42 +03:00
Michael Niedermayer
49515cb840 avformat: remove duplicate includes
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-21 15:36:33 +02:00
Michael Niedermayer
6bf6d6ad49 Merge commit '62572435d4106098c090fb8f129a9090e41ff1eb'
* commit '62572435d4106098c090fb8f129a9090e41ff1eb':
  rtpenc_chain: Check for errors from ffio_fdopen and ffio_open_dyn_packet_buf

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-07 12:05:03 +02:00
Martin Storsjö
62572435d4 rtpenc_chain: Check for errors from ffio_fdopen and ffio_open_dyn_packet_buf
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-08-07 11:37:13 +03:00
Michael Niedermayer
b4581e9394 Merge commit '4a4a7e138c92901e04db46a6b05cc6948023e5f5'
* commit '4a4a7e138c92901e04db46a6b05cc6948023e5f5':
  rtpenc_chain: Use the original AVFormatContext for getting payload type
  rtp: Make sure the output format pointer is set

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-24 14:18:30 +01:00
Martin Storsjö
4a4a7e138c rtpenc_chain: Use the original AVFormatContext for getting payload type
In ff_rtp_get_payload_type, the AVFormatContext is used for checking
whether the payload_type or rtpflags options are set. In rtpenc_chain,
the rtpctx struct is a newly initialized struct where no options have
been set yet, so no options can be fetched from there.

All muxers that internally chain rtp muxers have the "rtpflags" field
that allows passing such options on (which is how this worked before
8034130e06), so this works just as intended.

This makes it possible to produce H263 in RFC2190 format with chained
RTP muxers.

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-01-24 11:31:36 +02:00
Michael Niedermayer
9f8e2e92ae Merge commit 'e4d349b4014ee2a03f521027e0bd1ace4a9e60bd'
* commit 'e4d349b4014ee2a03f521027e0bd1ace4a9e60bd':
  fate: h264: Add dependencies
  fate: ea: Add dependencies
  fate: Do not unconditionally run libavutil tests
  rtpenc_chain: Remove unused variable
  nuv: check for malloc failure when allocating extradata
  nuv: use the stream indices generated by avformat_new_stream()

Conflicts:
	tests/fate/ea.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-29 14:16:46 +01:00
Diego Biurrun
2c4593dd13 rtpenc_chain: Remove unused variable 2012-11-28 18:17:49 +01:00
Michael Niedermayer
a9b1536a01 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  bgmc: Fix av_malloc checks in ff_bgmc_init()
  rtp: set the payload type as stream id

Conflicts:
	libavformat/rtpenc_chain.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-15 11:31:13 +01:00
Luca Barbato
8034130e06 rtp: set the payload type as stream id
Support multiple video/audio streams with different format in the
same session.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2012-11-14 20:38:51 +01:00
Michael Niedermayer
53ce990513 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  opt: Add av_opt_set_bin()
  avconv: Display the error returned by avformat_write_header
  rtpenc_chain: Return an error code instead of just a plain pointer
  rtpenc_chain: Free the URLContext on failure
  rtpenc: Expose the ssrc as an avoption
  avprobe: display the codec profile in show_stream()
  avprobe: fix function prototype
  cosmetics: Fix indentation
  avprobe: changelog entry
  avprobe: update documentation
  avprobe: provide JSON output
  avprobe: output proper INI format
  avprobe: improve formatting
  rtmp: fix url parsing
  fate: document TARGET_EXEC and its usage

Conflicts:
	doc/APIchanges
	doc/fate.texi
	doc/ffprobe.texi
	ffprobe.c
	libavformat/version.h
	libavutil/avutil.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-05-26 22:37:37 +02:00
Martin Storsjö
68c813081b rtpenc_chain: Return an error code instead of just a plain pointer
Also check the return value in sapenc.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-05-26 13:35:44 +03:00
Martin Storsjö
93cef6f923 rtpenc_chain: Free the URLContext on failure
If an URLContext is passed in, its ownership is given to this
function, and is either owned by the returned AVFormatContext
on a successful return, or freed on failure.

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-05-26 13:35:44 +03:00
Michael Niedermayer
c065255bba Merge remote-tracking branch 'qatar/master'
* qatar/master:
  aacenc: Fix LONG_START windowing.
  aacenc: Fix a bug where deinterleaved samples were stored in the wrong place.
  avplay: use the correct array size for stride.
  lavc: extend doxy for avcodec_alloc_context3().
  APIchanges: mention avcodec_alloc_context()/2/3
  avcodec_align_dimensions2: set only 4 linesizes, not AV_NUM_DATA_POINTERS.
  aacsbr: ARM NEON optimised sbrdsp functions
  aacsbr: align some arrays
  aacsbr: move some simdable loops to function pointers
  cosmetics: Remove extra newlines at EOF

Conflicts:
	libavcodec/utils.c
	libavfilter/formats.c
	libavutil/mem.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-29 00:34:59 +01:00
Alex Converse
7181c4edee cosmetics: Remove extra newlines at EOF 2012-01-27 17:19:09 -08:00
Michael Niedermayer
5f268ca5c5 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  lavf: pass options from AVFormatContext to avio.
  avformat: Use avio_open2, pass the AVFormatContext interrupt_callback onwards
  avio: add avio_open2, taking an interrupt callback and options
  avio: add support for passing options to protocols.
  avio: add and use ffurl_protocol_next().
  avformat: Pass the interrupt callback on to chained muxers/demuxers
  avio: Add an AVIOInterruptCB parameter to ffurl_open/ffurl_alloc
  avformat: Use ff_check_interrupt
  avio: Add an internal utility function for checking the new interrupt callback
  avio: Add AVIOInterruptCB
  texi2html: remove stray \n
  doc: prettyfy the texi2html documentation
  swscale: handle unaligned buffers in yuv2plane1

Conflicts:
	libavformat/avformat.h
	libavformat/avio.c
	libavformat/mov.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-14 00:33:39 +01:00
Martin Storsjö
6ef350c16b avformat: Pass the interrupt callback on to chained muxers/demuxers
There are a few more cases of chained demuxers, but they
only use custom IO which don't do any blocking IO and thus
don't need the callback.
2011-11-13 13:13:57 +01:00
Michael Niedermayer
d0492578c8 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  presets: rename presets directory
  lavc: make avcodec_get_context_defaults3 "officially" public
  lavf: replace av_new_stream->avformat_new_stream part II.
  lavf,lavd: replace av_new_stream->avformat_new_stream part I.
  lavf: add avformat_new_stream as a replacement for av_new_stream.
  Use correct scaling table for bwd-pred MVs in second B-field
  Ut Video decoder
  Makefile: change presets extension to .avpreset
  lavfi: add rgbtestsrc source, ported from MPlayer libmpcodecs
  lavfi: add testsrc source
  AVOptions: add documentation.
  presets: update libx264 ffpresets

Conflicts:
	Changelog
	doc/APIchanges
	doc/ffmpeg.texi
	ffpresets/libx264-ipod320.ffpreset
	ffpresets/libx264-ipod640.ffpreset
	ffserver.c
	libavcodec/avcodec.h
	libavcodec/options.c
	libavcodec/version.h
	libavdevice/libdc1394.c
	libavfilter/avfilter.h
	libavfilter/vsrc_testsrc.c
	libavformat/flvdec.c
	libavformat/riff.c
	libavformat/version.h
	libavformat/wtv.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-20 02:34:51 +02:00
Anton Khirnov
3b3bbdd3e6 lavf,lavd: replace av_new_stream->avformat_new_stream part I.
Trivial replacements with sed are done in this commit:
sed 's/av_new_stream(\([^)]*\), 0)/avformat_new_stream(\1, NULL)/'
2011-10-19 17:02:11 +02:00
Michael Niedermayer
f884ef00de Merge remote-tracking branch 'qatar/master'
* qatar/master: (31 commits)
  tiffenc: initialize forgotten avctx.
  avplay: free the active audio packet at exit.
  avplay: free rdft data used for spectrogram analysis.
  log.h: make AVClass a named struct
  fix ac3 encoder documentation
  vc1: more prettyprinting cosmetics
  vc1: prettyprint some tables
  vc1: K&R formatting cosmetics
  AVOptions: bump minor and add APIchanges entry.
  cmdutils/avtools: simplify show_help() by using av_opt_child_class_next()
  AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_*
  Remove all uses of deprecated AVOptions API.
  AVOptions: add av_opt_next, deprecate av_next_option.
  AVOptions: add functions for evaluating option strings.
  AVOptions: split get_number().
  AVOptions: add av_opt_get*, deprecate av_get*.
  AVOptions: add av_opt_set*().
  AVOptions: add new API for enumerating children.
  rv34: move inverse transform functions to DSP context
  flvenc: Write the right metadata entry count
  ...

Conflicts:
	avconv.c
	cmdutils.c
	doc/APIchanges
	ffplay.c
	ffprobe.c
	libavcodec/ac3dec.c
	libavcodec/h264.c
	libavcodec/libvpxenc.c
	libavcodec/libx264.c
	libavcodec/mpeg12enc.c
	libavcodec/options.c
	libavdevice/libdc1394.c
	libavdevice/v4l2.c
	libavfilter/vf_drawtext.c
	libavformat/flvdec.c
	libavformat/mpegtsenc.c
	libavformat/options.c
	libavutil/avutil.h
	libavutil/opt.c
	libswscale/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-10-13 06:00:03 +02:00
Anton Khirnov
3b3ea34655 Remove all uses of deprecated AVOptions API. 2011-10-12 16:51:16 +02:00
Michael Niedermayer
2905e3ff64 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  lavc: add opt_find to AVCodecContext class.
  h264: Complexify frame num gap shortening code
  intreadwrite.h: fix AV_RL32/AV_RB32 signedness.
  Fix decoding of mpegts streams with h264 video that does *NOT* have b frames
  Add minor bumps and APIChanges entries for lavf private options.
  ffmpeg: deprecate -vc and -tvstd
  ffmpeg: use new avformat_open_* API.
  ffserver: use new avformat_open_* API.
  ffprobe: use new avformat_open_* API.
  ffplay: use new avformat_open_* API.
  cmdutils: add opt_default2().
  dict: add AV_DICT_APPEND flag.
  lavf: add avformat_write_header() as a replacement for av_write_header().
  Deprecate av_open_input_* and remove their uses.
  lavf: add avformat_open_input() as a replacement for av_open_input_*
  AVOptions: add av_opt_find() as a replacement for av_find_opt.
  AVOptions: add av_opt_set_dict() mapping a dictionary struct to a context.
  ffmpeg: don't abuse a global for passing frame size from input to output
  ffmpeg: don't abuse a global for passing pixel format from input to output
  ffmpeg: initialise encoders earlier.

Conflicts:
	cmdutils.c
	doc/APIchanges
	ffmpeg.c
	ffplay.c
	ffprobe.c
	libavcodec/h264.c
	libavformat/avformat.h
	libavformat/utils.c
	libavformat/version.h
	libavutil/avutil.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-06-18 05:10:38 +02:00
Anton Khirnov
25de5958c8 lavf: add avformat_write_header() as a replacement for av_write_header().
It supports more convenient setting of AVOptions.
2011-06-16 20:24:56 +02:00
Michael Niedermayer
45fb647495 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  bitstream: Properly promote av_reverse values before shifting.
  libavutil/swscale: YUV444P10/YUV444P9 support.
  H.264: Fix high bit depth explicit biweight
  h264: Fix 10-bit H.264 x86 chroma v loopfilter asm.
  Replace DEBUG_SEEK/DEBUG_SI + av_log combinations by av_dlog.
  Update copyright year for ac3enc_opts_template.c.
  adts: Adjust frame size mask to follow the specification.
  movenc: Add RTP muxer/hinter options
  movenc: Pass the RTP AVFormatContext to the SDP generation
  rtspenc: Add RTP muxer options
  rtspenc: Add an AVClass for setting muxer specific options
  rtpenc_chain: Pass the rtpflags options through to the chained muxer
  rtpenc: Declare the rtp flags private AVOptions in rtpenc.h
  sdp: Reindent after the previous commit
  rtpenc: MP4A-LATM payload support
  avoptions: Add an av_opt_flag_is_set function for inspecting flag fields
  sdp: Allow passing an AVFormatContext to the SDP generation
  mov: Fix wrong timestamp generation for fragmented movies that have time offset caused by the first edit list entry.
  mpeg12: more advanced ffmpeg mpeg2 aspect guessing code.
  swscale: split YUYV output out of yuv2packed[12X]_c().

Conflicts:
	doc/APIchanges
	libavcodec/Makefile
	libavcodec/h264dsp_template.c
	libavcodec/mpeg12.c
	libavformat/aacdec.c
	libavformat/avidec.c
	libavformat/internal.h
	libavformat/movenc.c
	libavformat/rtpenc.c
	libavformat/rtpenc_latm.c
	libavformat/sdp.c
	libavformat/version.h
	libavutil/avutil.h
	libavutil/pixfmt.h
	libswscale/swscale.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-06-11 03:51:36 +02:00
Martin Storsjö
ff0824f72c rtpenc_chain: Pass the rtpflags options through to the chained muxer
Signed-off-by: Martin Storsjö <martin@martin.st>
2011-06-10 10:50:23 +03:00
Martin Storsjö
65a4d8e5a7 rtpenc_chain: Pass the MP4A_LATM flag to chained muxers 2011-05-20 01:44:10 +02:00
Michael Niedermayer
2cae9809e2 Merge remote branch 'qatar/master'
* qatar/master:
  fate: fix partial run when no samples path is specified
  ARM: NEON fixed-point forward MDCT
  ARM: NEON fixed-point FFT
  lavf: bump minor version and add an APIChanges entry for avio changes
  avio: simplify url_open_dyn_buf_internal by using avio_alloc_context()
  avio: make url_fdopen internal.
  avio: make url_open_dyn_packet_buf internal.
  avio: avio_ prefix for url_close_dyn_buf
  avio: avio_ prefix for url_open_dyn_buf
  avio: introduce an AVIOContext.seekable field
  ac3enc: use generic fixed-point mdct
  lavfi: add fade filter
  Change yadif to not use out of picture lines.
  lavc: deprecate AVCodecContext.antialias_algo
  lavc: mark mb_qmin/mb_qmax for removal on next major bump.

Conflicts:
	doc/filters.texi
	libavcodec/ac3enc_fixed.h
	libavcodec/ac3enc_float.h
	libavfilter/Makefile
	libavfilter/allfilters.c
	libavfilter/vf_fade.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-04-04 02:15:12 +02:00
Anton Khirnov
724f6a0fa4 avio: make url_fdopen internal.
The unbuffered URLContext API will be made private, so there's no point
in this function being public.
2011-04-03 22:47:39 +02:00
Anton Khirnov
403ee835e7 avio: make url_open_dyn_packet_buf internal.
It doesn't look fit to be a part of the public API.

Adding a temporary hack to ffserver to be able to use it, should be
cleaned up when somebody is up for it.
2011-04-03 22:47:32 +02:00
Anton Khirnov
6dc7d80de7 avio: avio_ prefix for url_close_dyn_buf 2011-04-03 22:47:05 +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
Anton Khirnov
ebb92e0768 avio: rename url_fopen/fclose -> avio_open/close.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 22a3212e32)
2011-02-23 18:22:03 +01:00
Anton Khirnov
22a3212e32 avio: rename url_fopen/fclose -> avio_open/close.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-02-23 10:18:55 -05:00
Martin Storsjö
118f09114c rtpenc_chain: Don't copy the time_base back to the caller
If required, the caller can do this itself. ff_write_chained rescales
timestamps as necessary, and all current callers of rtpenc_chain
use ff_write_chained, making this timebase copy unnecessary.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 397ffde115)
2011-02-06 20:31:45 +01:00
Martin Storsjö
42f97696ae Use avformat_free_context for cleaning up muxers
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit b22dbb291d)
2011-02-06 20:31:45 +01:00
Martin Storsjö
173f19be75 libavformat: Use avcodec_copy_context for chained muxers
This avoids having the chained AVStream->codec point to the same
AVCodecContext owned by the outer AVStream. The downside is that
changes to the AVCodecContext made after calling av_write_header
cannot be detected automatically within the chained muxer.

This avoids having to manually unlink the chained AVStream->codec
by setting it to null before freeing the chained muxer via generic
freeing functions.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 1338dc0823)
2011-02-06 20:31:44 +01:00
Martin Storsjö
397ffde115 rtpenc_chain: Don't copy the time_base back to the caller
If required, the caller can do this itself. ff_write_chained rescales
timestamps as necessary, and all current callers of rtpenc_chain
use ff_write_chained, making this timebase copy unnecessary.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-02-04 11:41:10 -05:00
Martin Storsjö
b22dbb291d Use avformat_free_context for cleaning up muxers
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-02-04 11:39:55 -05:00
Martin Storsjö
1338dc0823 libavformat: Use avcodec_copy_context for chained muxers
This avoids having the chained AVStream->codec point to the same
AVCodecContext owned by the outer AVStream. The downside is that
changes to the AVCodecContext made after calling av_write_header
cannot be detected automatically within the chained muxer.

This avoids having to manually unlink the chained AVStream->codec
by setting it to null before freeing the chained muxer via generic
freeing functions.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-02-04 11:28:07 -05:00