Avoid decoding a frame to get the codec parameters while the codec
supports FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM. This is particulary useful
to avoid decoding twice images (once in avformat_find_stream_info and
once when the actual decode is made).

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fixes assertion failure
Fixes: 136f8b8d47af7892306625e597dee655/signal_sigabrt_7ffff6ae7cc9_8941_ab11bea57c84796418f481f873dc31ba.dvr_ms

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes a mpegts file with hevc that fails estimating duration. Increasing number of
retries fixes the issue.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This matches the Libav signature and simplifies merging future changes.

All encoders set pts and dts properly now (and have been doing that for
a while), so there is no good reason to do any timestamp guessing in the
muxer.

The newly added AVStreamInternal will be later used for storing all the
private fields currently living in AVStream.

It will be needed in other functions.

The reasoning for setting it to zero only applies to demuxing.

Fixes a memory leak when using genpts

This fixes a memory leak when side-data is present.

Make it return an error and check its return value when it is used.
Simplify the usage by calling `av_packet_ref` internally when needed.

`av_packet_unref` matches the AVFrame ref-counted API and can be used as
a drop in replacement.

Deprecate `av_free_packet`.

And drop the av_dup_packet from the input_thread.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Note that convergence_duration had another meaning, one which was in
practice never used. The only real use for it was a 64 bit replacement
for the duration field. It's better just to make duration 64 bits, and
to get rid of it.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>

Both are only accessible through AVOptions.

Based on a patch by Steve Swanson, swanysteve at gmail.

Fixes ticket #2089.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: unknown_video.flv

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Marton Balint <cus@passwd.hu>

Add FF_API_PROBESIZE_32 to allow removing 32bit probesize and 32bit
max_analyze_duration after the next libavformat version bump.

Deprecated in 10/2012.

Move field to internal part of AVStream and struct to internal.h

Reviewed-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Fixes Ticket4725

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Assuming the wrong protocol can lead to suboptimal seeking performance

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes Ticket4126

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This code is one big chunk of WTF.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Theres no known case where its use on local files improves performance
if you know of such a case, please contact us

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This allows configuring the io buffer in such way that few seeks are needed for playback

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This avoids empty streams from being selected if a equivalent non empty one is available
The new system is also clearer and more systematic
This may need finetuning, which should be easy to do ...

Fixes Ticket2687

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Together with the next commit this prevents non-PCM S302M from being selected unless either
it can be decoded or the user selects passthrough/copy

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This also avoids using a floating point operation

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

av_codec_get_tag() can return 0 both in case of error and success.

Previous version reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This makes using the generic indexing code with mp3 easier at a later
point.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

warning: assigning to
      'char *' from 'const char *' discards qualifiers
      [-Wincompatible-pointer-types-discards-qualifiers]

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This applies to every library where performance is not critical.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This avoids waiting for a count to increase which will always be 0 and may
reduce the startup delay for affected streams (rare)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>