The code currently use cur_buf as the target of the copy,
but cur_buf can be cleared by the filter if it has given
the reference away or stored it elsewhere as soon as start_frame.
The code still relies on the fact that the reference is not
destroyed until end_frame. All filters currently follow that condition.
An av_assert1() is added to check it; it should at least cause
very visible errors in valgrind.
The boilerplate states that the files are under LGPL,
but refer the user to the GPL at one place.
These files were (re)implemented specifically for FFmpeg.
There is no need to start_frame immediately on the output link
since the rest is only done with the last frame of the tile.
link->out_buf is now automatically dereferenced; since we give
it away it must be cleared.
Fix an assert failure; found by Clément Bœsch.
Commit 2bf0982 introduced an overflow check in loco_decode_plane,
but the error code is never taken into account, leading to
completely idiotic return values.
samples_size and samples_idx are supposed to be multiple of
channels at all time. If they are, the division is exact;
if they are not, something is very wrong in the code.
Add "data" and "extradata" attributes to the schema.
Add "tag" element in "streams".
Print extradata before tags to avoid closing the element.
Fix trac ticket #1588.
The values are listed if setting them fails.
Using "-profile help" or "-profile list" have that effect.
Similar to 3aba391.
Suggested by "rogerdpack" in trac ticket #1529.
The voice register functions return the same voice structure
upon multiple registration. It causes us two problems:
If we delete a voice without deregistering it, it leaves
a dangling pointer inside the library.
If we delete or unregister a voice at uninit, it may still
be in use by another instance of the filter.
The second problem is solved by keeping an usage counter inside
asrc_flite. This is not thread-safe, but neither is flite itself.
Filters can change the timings, so input files must not
necessarily be read at the same rythm. This patch select
the input file to read based on the timestamp at output
instead of input. With complex filter graphs, finding the
input for a given output is done by making a request and
checking to what buffer source it has been forwarded.
It adds the following header to the HTML files:
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
which helps some browsers to display correctly the few non-ASCII
characters in the doc.
Reap buffers stored in the buffer sinks even when
the avfilter_graph_request_oldest() loop only returns EOF.
avfilter_graph_request_oldest() can cause frames to arrive
to the sinks even when it returns EOF.
If skip_samples is set and timestamps are synthesized using durations,
make them start at -skip_samples (rescaled) instead of 0,
so that the timestamp of the first undiscarded sample is 0.
This reverts commit 744bd8d08c.
pkt_timebase is now set by av_codec_set_pkt_timebase.
If some demuxer set AVStream.time_base directly,
it need to be fixed. There is a warning to detect it.
Allows to disable interaction from standard input.
Useful, for example, if ffmpeg is in the background process group.
Roughly the same result can be achieved with "ffmpeg ... < /dev/null"
but it requires a shell.
This one is tricky. Consider a graph with two sink links, A and B.
request_oldest() requests on A, and A returns EOF. This EOF causes
a filter to flush pending frames to B; they are unrequested.
Then request_oldest() moves on to B, and B returns EOF.
channel_map is applied between in and postin.
Without this test, if the input format is an acceptable internal format,
the in->postin conversion is skipped. In the best case,
it ignores channel_map, in the worst case it causes an assert failure
if the number of channels is changed by the map.
The old files were scattered in several directories,
with an unusual name, but dependencies to the usual name,
and relative paths.
The new files are regrouped in a singled directory
(doc/examples/pc-uninstalled) with their usual name
and more absolute paths.
With this change, it becomes possible to compile the examples
with the ffmpeg build tree by setting the environment variable:
PKG_CONFIG_PATH=pc-uninstalled
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 code is intended for errors in external libraries
when no corresponding error code can be found.
AVERROR_UNKNOWN is too vague for that and looks like AVERROR_BUG.
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.
This muxer supports CODEC_ID_SRT with the timestamps in the packet data
and CODEC_ID_TEXT with the timestamps in the packet fields.
Makes -scodec copy work from Matroska.
The list was set to avfilter_all_channel_layouts,
which is really all common channel layouts.
Not setting it leaves an empty list,
which now means really all.
Nicolas George
