This commit caused Ticket1490 (Infinity loop / lock in export image)

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

Fixes Ticket1432

Thanks-to: Mike Scheutzow <mike.scheutzow@alcatel-lucent.com> for some of the bug analysis
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

It allows to send program-friendly (easy to parse)
progress information to a file or an URL.

This fixes the timestamp of the first packet when samples have been skiped.

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

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

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

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

If not, frames can still arrive to the sink and accumulate.
The frames past recording time will be ignored in do_*_out.

This commit is based on libav's implementation and
makes sure to compare output timestamps together.
It also reduces the differences with avconv.

The changes to the test reference files are caused
by an additional packet at the end, the timestamp
of the frame encoded by this packet is always
strictly below the limit stated by the -t option.

This prevents long loops and OOM in case of damaged timestamps in some
cases

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

The filter contexts are completely cleared,
so the frame size can not be kept.

Identical to commit 4f6a1c97 by Reimar Döffinger,
that was lost after the merge of 19ad5673.

Using -t on an input already have surprising results.
Furthermore, using it on an input or an output makes
a real difference if there are speed-altering filters.

Implementing -t for inputs will probably result in some
behavour changes.

Fixes Ticket1439

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

Deprecate functions:
avfilter_fill_frame_from_buffer_ref
avfilter_fill_frame_from_audio_buffer_ref
avfilter_fill_frame_from_video_buffer_ref

and schedule to drop them at the next API major bump.

The function avfilter_copy_buf_props() should be used instead.

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

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

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

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

This avoids the "Output file is empty" warning
with subtitles-only files.

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

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

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

With complex filters, an output can come from any input,
or several inputs, including inputs of a different type.
Copying the codec parameters from the first input with
the same type does not make any sense.

This does not change anything for simple 1->1 filters,
as source_index is set in that case.

With complex filter graphs, it can end up accessed
without having been set.

This frame rate is more reliable than the one copied
from the input stream, so it is used in priority.

The arguments now use the key=value syntax.

This message is printed whenever the RAWVIDEO codec is used, whether the
output file contains any frames or not. Test command:
./ffmpeg -i infile.y4m outfile.y4m

Signed-off-by: Mike Scheutzow <mjs973@optonline.net>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

It makes the transcode loop easier to read (30% less code)
and the differences with avconv easier to spot.

Currently, we don't set the duration on the packet of a newly
encoded subtitle. This information may be required by the
muxer.

Signed-off-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

This fixes terminal messup in case of crashes (like in make fate)

Reviewed-by: François Revol <revol@free.fr>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This fixes -vol leading to 2 inserted volume filters

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

Some demuxers set a timecode in the format or streams metadata. The
muxers now make use of this metadata instead of a duplicated private
option.

This makes possible transparent copy of the timecode when transmuxing
and transcoding.

-timecode option for MPEG1/2 codec is also renamed to -gop_timecode. The
global ffmpeg -timecode option will set it anyway so no option change
visible for the user.