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Commit Graph

224 Commits

Author SHA1 Message Date
Jun Zhao
053d33b46b lavf/flvenc: add automatic bitstream filtering
add automatic bitstream filtering when mux AAC

Reported-by: Yabo Wei weiyabogeijing@gmail.com
Reviewed-by: Steven Liu<lq@onvideo.cn>
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
2019-06-25 10:45:47 +08:00
Michael Niedermayer
6b67d7f059 avformat/flvenc: Check audio packet size
Fixes: Assertion failure
Fixes: assert_flvenc.c:941_1.swf

Found-by: #CHEN HONGXU# <HCHEN017@e.ntu.edu.sg>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-08-04 16:17:01 +02:00
Alex Converse
ea0010bf9c flvenc: Fix sequence header update timestamps 2018-05-29 22:14:13 -07:00
Alex Converse
4d3dd167df flvenc: Factorize timestamp writing
The code is trivial but the semantics in the spec are ambiguous. This
should help keep parts of the muxer interpreting them consistently.
2018-05-29 22:14:12 -07:00
Marton Balint
18ac642359 avformat: migrate to AVFormatContext->url
Signed-off-by: Marton Balint <cus@passwd.hu>
2018-01-28 23:06:43 +01:00
Steven Liu
4e3cc4bdd8 avformat/flvenc: flx flvflags no_metadata bug
When use flvflags no_metadata , the FLV header will be cover by write tailer
This commit fix the bug

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
2017-03-14 18:11:20 +08:00
Steven Liu
1bb192ef6c avformat/flvenc: refine the flvenc shift_data code
refine the flvenc shift_data move data option

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
2017-01-24 12:31:36 +08:00
Michael Niedermayer
4221c68edb avformat/flvenc: Check for extradata allocation failure
Fixes CID1396539

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-01-03 03:25:25 +01:00
Steven Liu
ee24c8ad01 avformat/flvenc: fix ticket 5976 and use old commit
mythtv have problem with non-seekable dont write duration and filesize
and there have problem with some other server and player with 0 value
duation and filesize.
So add a flv flags to fix the ticket and make a choose for users.

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
2016-11-26 08:52:19 +08:00
Steven Liu
d316b21dba avformat/flvenc: add no_metadata to flvflags
some flv have no metadata,
ffmpeg will same with the source flv stream.

Signed-off-by: Steven Liu <lingjiujianke@gmail.com>
2016-11-22 10:18:23 +08:00
Steven Liu
863ebe6f83 avformat/flvenc: add add_keyframe_index option
Add keyframe index metadata
Used to facilitate seeking; particularly for HTTP pseudo streaming.
 1. read live streaming or file by sequence
 2. if use add_keyframe_index option, add a mark flag at the position,
    use to insert new context at the last step.
 3. add the keyframes *offset* and *timestamp* into a list
 4. if use add_keyframe_index option, shift the metadata data from
    mark flag offset
 5. insert the keyframes *offset* and *timestamp* from the list by
    sequence
 6. free the list
 7. end.

Add FATE test case;

Reviewed-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Steven Liu <liuqi@gosun.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-11-10 10:30:48 +08:00
fuqiuping
2d72ea68f0 avformat/flvenc: support mp3 audio with 48khz
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-11-06 22:46:25 +01:00
Steven Liu
5702416c57 avformat/flvenc: do not attempt to write duration and filesize when not seekable
Its impossible to update the filesize & duration values if seekback is not
possible as with live streams

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-10-20 18:07:24 +02:00
Steven Liu
c8528e54e5 avformat/flvenc: add no_sequence_end flags for flvflags
when split flv file by flv format at first, and cat flvs file
into one flv file, the flv sequence end is be used,
then the whole flv have many flv sequence end TAG.
this flags can give user an option to ignore write sequence end TAG

Signed-off-by: Steven Liu <lingjiujianke@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-09-14 15:50:07 +02:00
Michael Niedermayer
e85c4a4706 avformat/flvenc: Add () around &
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-09-14 15:50:07 +02:00
Steven Liu
84aebfc74e avformat/flvenc: add FLVFlags for flvflags options
add FLVFlags type, be used to add new FLVFlags options

Signed-off-by: Steven Liu <lingjiujianke@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-09-14 01:45:40 +02:00
Matthieu Bouron
625eb41086 Merge commit '371df9ba71393a1c5429d5f40c76348b30e556c7'
* commit '371df9ba71393a1c5429d5f40c76348b30e556c7':
  flvenc: Provide output bytestream markers

Merged-by: Matthieu Bouron <matthieu.bouron@stupeflix.com>
2016-06-23 17:43:19 +02:00
Ivan
c1f57e2f91 libavformat/flvenc: support for codec configuration change mid stream
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-06-11 10:54:43 +02:00
Ivan
52985768af libavformat/flvenc: refactoring: extracted method for writing codec headers
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-06-11 10:54:43 +02:00
Martin Storsjö
371df9ba71 flvenc: Provide output bytestream markers
Signed-off-by: Martin Storsjö <martin@martin.st>
2016-05-18 10:36:53 +03:00
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
Marton Balint
28fbdece79 avformat: use ff_standardize_creation_time for formats writing all format string metadata
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
2016-03-03 01:37:18 +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
Ivan
a0174f6729 avformat/flvenc: copyts in FLV muxer
The purpose of this patch is to preserve timestamps when using ffmpeg for publishing RTMP streams, e.g. ffmpeg -i rtmp://source/stream -f flv rtmp://target/stream.
There is a setting "copyts" for that purpose. Unfortunately it doesn't work with FLV muxer because it has its own timestamp correction which makes global setting "copyts" ineffective.

This patch removes timestamp correction in FLV muxer. This means FLV will rely on ffmpeg timestamp correction which makes it possible to use copyts.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-01-26 20:56:55 +01:00
Maksym Veremeyenko
acb430e4d3 avformat/flvenc: Add aac_seq_header_detect and flvflags
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-11-20 18:18:56 +01:00
Andreas Cadhalpun
ed0b1db640 doc: fix spelling errors
Neccessary -> Necessary
formated   -> formatted
thee       -> the
eventhough -> even though
seperately -> separately

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
2015-06-14 15:09:33 +02:00
Michael Niedermayer
14bc7aaa86 Revert "avformat/flvenc: Allow muxing video codecs which are not explicitly supported by the muxer"
This commit has no known use case ATM as there are no unsupported video codecs in flv and could
theoretically be use to generate broken files allthough that would be not entirely easy as
tags/codecs still get sanity checked

This reverts commit 76f4b11780.
2015-03-22 17:19:25 +01:00
Michael Niedermayer
76f4b11780 avformat/flvenc: Allow muxing video codecs which are not explicitly supported by the muxer
This allows stream copying video codecs before they are explicitly
supported. The same feature was in the past useful for audio codecs
in flv

This partly reverts the changes from 735ab7c5e0

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-03-22 16:20:14 +01:00
Michael Niedermayer
735ab7c5e0 Merge commit 'e767c9e8f2eaa116b61b8b6881b401b54bd320f5'
* commit 'e767c9e8f2eaa116b61b8b6881b401b54bd320f5':
  flv: Validate and reject unsupported codecs

Conflicts:
	libavformat/flvenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-03-04 20:47:14 +01:00
Luca Barbato
e767c9e8f2 flv: Validate and reject unsupported codecs
And provide a more informative message in case of failure.

CC: libav-stable@libav.org
2015-03-04 18:28:40 +01:00
Andreas Cadhalpun
e8565d21c2 avformat/flvenc: check that the codec_tag fits in the available bits
flags is later written with avio_w8 and if it doesn't fit in one byte it
triggers an av_assert2.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-02-28 22:53:12 +01:00
Michael Niedermayer
b942a71eaa avformat/flvenc: accept AVMEDIA_TYPE_SUBTITLE instead of DATA for subtitles
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-01-22 13:26:29 +01:00
Michael Niedermayer
58721388b8 avformat/flvenc: omit more metadata elements with specific meaning
Reviewed-by: Thilo Borgmann <thilo.borgmann@mail.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-01-05 01:45:49 +01:00
Carl Eugen Hoyos
78093cf849 Print a warning if vp6 is muxed into flv: The output is flipped.
Fixes ticket #4132.
2014-11-23 13:22:27 +01:00
Michael Niedermayer
4b68edd08a flvenc: Remove an unused variable
Signed-off-by: Martin Storsjö <martin@martin.st>
2014-11-22 22:10:52 +02:00
Michael Niedermayer
cc5f731541 avformat/flvenc: remove unused variable
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-17 13:08:05 +01:00
Michael Niedermayer
4127d97c8d Merge commit 'c64f3615118d757dcf76040fe5407bf2b3883206'
* commit 'c64f3615118d757dcf76040fe5407bf2b3883206':
  flvenc: Send new metadata when FLAG_METADATA_UPDATED is set.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-17 13:01:39 +01:00
Michael Niedermayer
bb7be3b763 Merge commit '4d0cd5f58c892276716f46f4b2702915e5018215'
* commit '4d0cd5f58c892276716f46f4b2702915e5018215':
  flvenc: move metadata updates into a single function

Conflicts:
	libavformat/flvenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-17 12:43:55 +01:00
Andrew Stone
c64f361511 flvenc: Send new metadata when FLAG_METADATA_UPDATED is set.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2014-11-17 09:28:16 +01:00
Andrew Stone
4d0cd5f58c flvenc: move metadata updates into a single function
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2014-11-17 09:28:06 +01:00
Michael Niedermayer
470e116e3f avformat/flvenc: Use AVFormatContext strict_std_compliance instead of AVCodecContext
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-06 14:47:43 +01:00
Stefano Sabatini
f0158e6f0c lavf/flvenc: fail in case the muxed packet is too big
Avoid the creation of files which cannot be successfully decoded by
ffmpeg, for example generated with:
ffmpeg -f lavfi -i sine -af "aselect='not(between(t,100,500))',aresample=min_comp=0.001:min_hard_comp=0.100000" -acodec pcm_s16le -t 1000 -y out_audio.flv
2014-11-03 09:31:48 +01:00
Michael Niedermayer
8cde94ec0d avformat/flvenc: fix codec_id_text check
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-10-02 03:58:54 +02:00
Jeffrey Wescott
07de0db74b avformat/flvenc: When using "-c:d copy", don't require a codec for passing the AMF metadata through from input to output. 2014-09-30 20:27:07 +02:00
Moritz Barsnick
66d02d3ca6 align and correct messages regarding bitstream filters
The messages regarding the recommended use of bitstream filters are somewhat different.
This also adds the ":v" stream specifier to "-bsf h264_mp4toannexb".

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-19 20:18:01 +02:00
Michael Niedermayer
3f2f87cd5a Merge commit '74bc9458057f07c0820c3d3264396c4c64442e47'
* commit '74bc9458057f07c0820c3d3264396c4c64442e47':
  flvenc: Don't over-count metadata.

Conflicts:
	tests/ref/lavf/flv_fmt
	tests/ref/vsynth/vsynth1-flashsv
	tests/ref/vsynth/vsynth1-flv
	tests/ref/vsynth/vsynth2-flashsv
	tests/ref/vsynth/vsynth2-flv

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-18 01:44:24 +02:00
Josh Allmann
74bc945805 flvenc: Don't over-count metadata.
Over-counting occurs if framerate is not set.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
2014-06-17 21:38:21 +02:00
Michael Niedermayer
74760883fc avformat/flvenc: Do not allow creating h263/mpeg4 in flv without unofficial format extensions being enabled.
Found-by: Jean-Baptiste Kempf <jb@videolan.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-07 12:03:31 +02:00
Michael Niedermayer
2e532aa82d avformat/flvenc: fix assertion failure after 4h muxing
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-05-31 01:43:41 +02:00
Michael Niedermayer
e46cc1dab0 Merge commit '43e7f0797f9f821a3866a20f05e512e13c82076a'
* commit '43e7f0797f9f821a3866a20f05e512e13c82076a':
  flvenc: only write the framerate tag based on avg_frame_rate

Conflicts:
	tests/ref/lavf/flv_fmt
	tests/ref/seek/lavf-flv_fmt
	tests/ref/seek/vsynth2-flv
	tests/ref/vsynth/vsynth1-flashsv
	tests/ref/vsynth/vsynth1-flv
	tests/ref/vsynth/vsynth2-flashsv
	tests/ref/vsynth/vsynth2-flv

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-05-29 13:30:12 +02:00