Commit Graph

55 Commits

Author SHA1 Message Date
Michael Niedermayer
3adb5f8d8b Merge commit 'd9ae1031f5edbd25c8526b4cb51aba66d3bee931'
* commit 'd9ae1031f5edbd25c8526b4cb51aba66d3bee931':
  lavf: improve handling of sparse streams when muxing

Conflicts:
	doc/APIchanges
	libavformat/avformat.h
	libavformat/mux.c
	libavformat/options_table.h
	libavformat/version.h

See: 37ed5df5c5
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-02-05 03:19:22 +01:00
Luca Barbato
d9ae1031f5 lavf: improve handling of sparse streams when muxing
Currently ff_interleave_packet_per_dts() waits until it gets a frame for
each stream before outputting packets in interleaved order.

Sparse streams (i.e. streams with much fewer packets than the other
streams, like subtitles or audio with DTX) tend to add up latency and in
specific cases end up allocating a large amount of memory.

Emit the top packet from the packet_buffer if it has a time delta
larger than a specified threshold.

Original report of the issue and initial proposed solution by
mus.svz@gmail.com.

Bug-id: 31
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2014-02-04 22:01:42 +01:00
Michael Niedermayer
073e771c9c Merge commit '33c859c142ef3f49b7a6227014ad92a680cf4d74'
* commit '33c859c142ef3f49b7a6227014ad92a680cf4d74':
  lavf: ignore attachment streams for interleaving purposes

Conflicts:
	libavformat/avformat.h
	libavformat/internal.h
	libavformat/mux.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-02-04 15:37:05 +01:00
Michael Niedermayer
5144d91996 Merge commit '7b03b65bf0d02519c86750d2da33f413e11cf0c6'
* commit '7b03b65bf0d02519c86750d2da33f413e11cf0c6':
  lavf: do basic sanity checking on muxed packets

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-02-04 15:17:29 +01:00
Anton Khirnov
33c859c142 lavf: ignore attachment streams for interleaving purposes
Those streams should never get any packets by definition.
2014-02-04 11:17:06 +01:00
Anton Khirnov
7b03b65bf0 lavf: do basic sanity checking on muxed packets
Reject packets for non-existing or attachment streams.
2014-02-04 11:10:55 +01:00
Stefano Sabatini
5871ee5072 lavf: add output_ts_offset option to AVFormatContext
This option can be generally useful to set an output offset, needed when
setting an absolute index in the output.
2014-02-02 13:16:17 +01:00
Michael Niedermayer
e9a26dc5bf avformat/mux: fix "no tag found" check in validate_codec_tag()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-01-01 22:30:31 +01:00
Stefano Sabatini
d37d4b6e40 lavf/mux: improve feedback in case of no streams in muxer 2013-12-15 20:04:06 +01:00
James Almer
618bdb7f58 lavf/mux: Don't write "encoder" metadata tag when bitexact is requested
Since we don't write lavf's string when bitexact is requested, this will
prevent the tag from being copied from the source stream.

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-12-06 19:33:41 +01:00
Michael Niedermayer
96e6447d62 Merge commit '596e5d4783ca951258a7c580951fd161f1785ec1'
* commit '596e5d4783ca951258a7c580951fd161f1785ec1':
  lavf: Add a flag to enable/disable per-packet flushing

Conflicts:
	libavformat/avformat.h
	libavformat/mux.c
	libavformat/version.h

This adds a 2nd API to set per packet flushing
If the user application indicates through either a non default then this non default takes
precedence over the other still default value

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-17 12:01:35 +02:00
Luca Barbato
596e5d4783 lavf: Add a flag to enable/disable per-packet flushing
This is enabled by default and can be disabled with
"-fflags -flush_packets".

Inspired by a patch from Nicolas George <nicolas.george@normalesup.org>.

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-09-16 22:11:08 +03:00
Michael Niedermayer
20be5e0a0e Merge commit '7950e519bb094897f957b9a9531cc60ba46cbc91'
* commit '7950e519bb094897f957b9a9531cc60ba46cbc91':
  Disable deprecation warnings for cases where a replacement is available

Conflicts:
	libavcodec/avpacket.c
	libavcodec/pthread.c
	libavcodec/utils.c
	libavdevice/v4l2.c
	libavfilter/avfiltergraph.c
	libavfilter/buffersrc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-03 10:08:30 +02:00
Diego Biurrun
7950e519bb Disable deprecation warnings for cases where a replacement is available 2013-08-02 19:19:02 +02:00
Stefano Sabatini
08b99be7c4 lavf/mux: rename variable cortag -> tagbuf2 in init_muxer()
Possibly enhance readibility.
2013-06-26 23:22:22 +02:00
Michael Niedermayer
f48366c704 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  lavf: don't abort if both encoder and muxer aspect ratios are not set

Conflicts:
	libavformat/mux.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-06-24 11:42:42 +02:00
Rafaël Carré
e21307a2b0 lavf: don't abort if both encoder and muxer aspect ratios are not set
Signed-off-by: Anton Khirnov <anton@khirnov.net>
2013-06-24 08:03:26 +02:00
Michael Niedermayer
8097307bfb Merge commit '12db891dcd57b305d6e3c1e22ea8204dc26edda1'
* commit '12db891dcd57b305d6e3c1e22ea8204dc26edda1':
  avf: move ff_write_chained to mux.c

Conflicts:
	libavformat/mux.c
	libavformat/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-06-16 23:58:59 +02:00
Luca Barbato
12db891dcd avf: move ff_write_chained to mux.c 2013-06-16 14:41:07 +02:00
Vignesh Venkatasubramanian
98c292a7a8 Adding support for encoding VP8 Alpha
This patch adds support for encoding VP8 files with alpha. The alpha channel
is encoded separately and the output is placed in AVPacket's side_data. The
muxer then muxes it into the BlockAdditional element of the matroska container.
More details on spec here: http://goo.gl/wCP1y

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-17 15:11:23 +02:00
Michael Niedermayer
efc08e00cc Merge commit 'b3ea76624ad1baab0b6bcc13f3f856be2f958110'
* commit 'b3ea76624ad1baab0b6bcc13f3f856be2f958110':
  vf_aspect: use the name 's' for the pointer to the private context
  Remove commented-out debug #define cruft

Conflicts:
	libavcodec/4xm.c
	libavcodec/dvdsubdec.c
	libavcodec/ituh263dec.c
	libavcodec/mpeg12.c
	libavfilter/avfilter.c
	libavfilter/vf_aspect.c
	libavfilter/vf_fieldorder.c
	libavformat/rtmpproto.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-16 09:56:43 +02:00
Diego Biurrun
2832ea26f3 Remove commented-out debug #define cruft 2013-05-16 00:23:30 +02:00
Michael Niedermayer
a5ba4e186b Merge commit 'e926b5ceb1962833f0c884a328382bc2eca67aff'
* commit 'e926b5ceb1962833f0c884a328382bc2eca67aff':
  avformat: Drop unnecessary ff_ name prefixes from static functions

Conflicts:
	libavformat/audiointerleave.c
	libavformat/mux.c
	libavformat/mxfenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-01 18:28:48 +02:00
Diego Biurrun
e926b5ceb1 avformat: Drop unnecessary ff_ name prefixes from static functions 2013-04-30 16:16:23 +02:00
Michael Niedermayer
ba323d67fa avformat/write_packet: drop disabled code
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-04-26 14:57:56 +02:00
Michael Niedermayer
eba33396f0 avformat/mux: set avoid_negative_ts based on flags if not overridden by user or muxer
This changes the default to avoid negative timestamps.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-04-26 14:51:47 +02:00
Michael Niedermayer
647f306b46 avformat/mux: assert that timestamps are positive after offsetting them
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-04-26 14:51:47 +02:00
Michael Niedermayer
c329195a27 avformat/mux: use a local variable for offset
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-04-26 14:51:47 +02:00
Michael Niedermayer
060f14f493 avformat/mux: change avoid_negative_ts code to support later addition of AVStreams
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-04-26 14:51:47 +02:00
Michael Niedermayer
c4bf740225 Merge commit 'c2cb01d418dd18e1cf997c038d37378d773121be'
* commit 'c2cb01d418dd18e1cf997c038d37378d773121be':
  lavf: introduce AVFMT_TS_NEGATIVE

Conflicts:
	libavformat/avformat.h
	libavformat/mux.c
	tests/ref/lavf/asf
	tests/ref/lavf/mkv
	tests/ref/lavf/mpg
	tests/ref/lavf/ts
	tests/ref/seek/lavf-asf
	tests/ref/seek/lavf-mkv
	tests/ref/seek/lavf-mpg
	tests/ref/seek/lavf-ts

This commit does not change the default ts behaviour, such
change will, if its done, be done separately.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-04-26 10:59:45 +02:00
Luca Barbato
c2cb01d418 lavf: introduce AVFMT_TS_NEGATIVE
Most formats do not support negative timestamps, shift them to avoid
unexpected behaviour and a number of bad crashes.

CC:libav-stable@libav.org

Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2013-04-25 10:13:27 +02:00
Michael Niedermayer
a286940da1 mux: also call avio_flush() when flushing the muxer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-04-08 13:31:12 +02:00
Nicolas George
4f112a8e34 lavf/mux: add the flush_packets option.
Note: a lot of muxers already do the flushing explicitly.
2013-03-24 23:19:07 +01:00
Michael Niedermayer
06a8350599 Merge commit '7b486ab13bfcfa88a7cd92586de50e49966ec292'
* commit '7b486ab13bfcfa88a7cd92586de50e49966ec292':
  lavf: remove disabled FF_API_AV_GETTIME cruft
  lavf: remove disabled FF_API_INTERLEAVE_PACKET cruft

Conflicts:
	libavformat/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-13 12:37:03 +01:00
Anton Khirnov
32e5194969 lavf: remove disabled FF_API_INTERLEAVE_PACKET cruft 2013-03-11 18:23:10 +01:00
Michael Niedermayer
2653e12520 Merge commit '1afddbe59e96af75f1c07605afc95615569f388f'
* commit '1afddbe59e96af75f1c07605afc95615569f388f':
  avpacket: use AVBuffer to allow refcounting the packets.

Conflicts:
	libavcodec/avpacket.c
	libavcodec/utils.c
	libavdevice/v4l2.c
	libavformat/avidec.c
	libavformat/flacdec.c
	libavformat/id3v2.c
	libavformat/matroskaenc.c
	libavformat/mux.c
	libavformat/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-08 19:12:03 +01:00
Anton Khirnov
1afddbe59e avpacket: use AVBuffer to allow refcounting the packets.
This will allow us to avoid copying the packets in many cases.

This breaks ABI.
2013-03-08 07:33:45 +01:00
Michael Niedermayer
46730e7a0c mux/chunked interleaver: better align duration chunks.
This code causes the chunking to tend toward more optimal
alignment between streams.
The first chunks can still be less optimal aligned
2013-01-17 15:11:02 +01:00
Michael Niedermayer
69a96f9d4c mux: de-obfuscate chunked interleaver checks
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-17 15:08:50 +01:00
Michael Niedermayer
c57c1329a9 mux: simplify chunking interleaver code
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-17 14:45:30 +01:00
Michael Niedermayer
1191db31c1 mux: fix chunked interleaver
The code did not account properly for packets that where added to
the end of the packet list. Also flags for such packets where not
set correctly leading to incorrect chunked interleaving.

Reported-by: bcoudurier
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-16 20:22:58 +01:00
Michael Niedermayer
cae11e4031 mux: fix chunked_duration rounding anomaly
a small value was rounded to 0 and then treated special as if
chunked_duration was 0. This led to a inconsistency that further led
to wrong interleaving

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-16 13:49:02 +01:00
Michael Niedermayer
d641ee94b5 lavf: Fix assignments in if()
Signed-off-by: Martin Storsjö <martin@martin.st>
2013-01-14 13:12:55 +02:00
Michael Niedermayer
1ac5a8d7e3 lavf/mux: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-14 05:05:41 +01:00
Clément Bœsch
119d70db50 lavf/mux: do not pass a copy of the packet to write_packet().
Sometimes the muxer modifies the packet, like for instance lavf/mp3enc
changing pkt->destruct in order to keep a copy. These changes must be
kept, even though the muxer behaviour is questionable. Regression since
0072116.

Fixes #2124.
2013-01-08 23:21:05 +01:00
Clément Bœsch
0072116ccb lavf: split packets before muxing.
After demuxing, data and side are merged. Before decoding, they are
split. Encoder will perform with data and side split. This means that a
muxer can receive split data (after encoding) but also merged data (if
called directly after demuxing). This commit makes sure data and side
are split for the muxer.
2012-12-20 16:13:52 +01:00
Michael Niedermayer
f2a7e1a62b mux: change 1 assert->av_assert1()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-07 23:31:27 +02:00
Michael Niedermayer
5e6439a125 ff_choose_timebase: only try factors upto 14
otherwise a unexpected timebase could be choosen
that is one that is thousand times more precisse than requested
which can have sideeffects.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-03 21:38:56 +02:00
Michael Niedermayer
de707bc8bd mux/nut: factorize ff_choose_timebase() out of nut
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-03 21:34:43 +02:00
Michael Niedermayer
dd78e1090b Merge commit '1e46c63eb72be752e044ba32257d77f35cbd9dac'
* commit '1e46c63eb72be752e044ba32257d77f35cbd9dac':
  avformat: refactor avformat_write_header

Conflicts:
	libavformat/mux.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-02 18:48:56 +02:00