* commit 'bc909626b0a3c107625f2cb4c85479d18de422a8':
twinvq: move all bitstream reading into single place
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'c84ea750cf765c9d8845fca5546eb0ae25b9c855':
mpegts: Make discard_pid() faster for single-program streams
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'cabb1681697555e2c319c37c1f30f149207e9434':
mpegts: Remove one memcpy per packet
Conflicts:
libavformat/mpegts.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'daf1e0d3de03bd424016e2a7520e4e94ece5c0ac':
avio: Add an internal function for reading without copying
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '2852740e23f91d6775714d7cc29b9a73e1111ce0':
vdpau: store picture data in picture's rather than codec's context
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Prevent build failure for applicatins using the old API
This could be replaced be a include of version.h but some applications
would then need extern C wrapers
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '488a0fa68973d48e264d54f1722f7afb18afbea7':
avconv: support -t as an input option.
Conflicts:
Changelog
ffmpeg.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '811bd0784679dfcb4ed02043a37c92f9df10500e':
avconv: make input -ss accurate when transcoding
Conflicts:
Changelog
doc/ffmpeg.texi
ffmpeg.h
ffmpeg_filter.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '56ee3f9de7b9f6090d599a27d33a392890a2f7b8':
avconv: distinguish between -ss 0 and -ss not being used
Conflicts:
ffmpeg.c
ffmpeg_opt.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '2e661f26f8b12195f75ae3b07d9591e395135bc7':
avconv: insert extra filters in the same way for both graph inputs and outputs
Conflicts:
ffmpeg_filter.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '3799376dd3373ee255651ed542c75b15665801a8':
lavfi/fifo: fix flushing when using request_samples
Conflicts:
libavfilter/fifo.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '612a5049d9b4ac1c2a293daf75fe814b7a94fdc7':
avserver: do not use a static string as a default for a string option
See: 19c41c6d8e
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Changes since v1 of the patch:
- enable option by default
- add documentation
- move up PTS override code after PES header parsing, to ensure we use the
last PCR before the first packet of the teletext PES packet.
The option overrides teletext packet PTS and DTS values with the timestamps
calculated from the PCR of the first program which the teletext stream is part
of and is not discarded.
Using the same teletext PID for multiple programs is possible, therefore we
need some kind of heuristics to know which program PCR we should synchronize
to. Using the first non-discarded PCR pid among the programs of the teletext
stream seemed like a good choice.
The patch does not do PCR interpolation to estimate the PCR of the teltetext
packet, it just uses the last PCR of the program, which may cause a slight
error (0.1 sec) in the teletext packet pts-es.
Based on a patch by Reimar Döffinger.
http://lists.ffmpeg.org/pipermail/ffmpeg-devel/2012-September/131610.html
Signed-off-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This is required for the future addition of VoxWare MetaSound decoder, for its
functions are mostly the same but bitstream reader is completely different
and bitstream format is slightly different too.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
The common case of the pointer having increased by one packet (which results
in no change to the modulus) can be detected with a 64-bit subtraction,
which is far cheaper than a division on many platforms.
Before After
Mean StdDev Mean StdDev Change
Divisions 248.3 8.8 51.5 7.4 +381.7%
Overall 2773.2 25.6 2372.5 43.1 +16.9%
Signed-off-by: Martin Storsjö <martin@martin.st>
When a stream contains a single program, there's no point in doing a
PID -> program lookup. Normally the one and only program isn't disabled,
so no packets should be discarded.
Before After
Mean StdDev Mean StdDev Change
discard_pid() 73.8 9.4 20.2 1.5 +264.8%
Overall 2300.8 28.0 2253.1 20.6 +2.1%
Signed-off-by: Martin Storsjö <martin@martin.st>
This was being performed to ensure that a complete packet was held in
contiguous memory, prior to parsing the packet. However, the source buffer
is typically large enough that the packet was already contiguous, so it is
beneficial to return the packet by reference in most cases.
Before After
Mean StdDev Mean StdDev Change
memcpy 720.7 32.7 649.8 25.1 +10.9%
Overall 2372.7 46.1 2291.7 21.8 +3.5%
Signed-off-by: Martin Storsjö <martin@martin.st>
As long as there is enough contiguous data in the avio buffer,
just return a pointer to it instead of copying it to the caller
provided buffer.
Signed-off-by: Martin Storsjö <martin@martin.st>
