It has its own allocator that is not necessarily doing the same as malloc and
will then usually crash. E.g. on Windows or when memalign() is available.
In ffmpeg this is the same as FRONT_CENTER, but we distinguish between
FRONT_CENTER and MONO in GStreamer. Add an explicit mapping for this special
case in the translations functions.
https://bugzilla.gnome.org/show_bug.cgi?id=759846
Handling slice_offset in avviddec is resulting in invalid memory read.
Since rv decoders anyways handle slice_offset, removing the same to fix
memory mishandlings
https://bugzilla.gnome.org/show_bug.cgi?id=758726
Error out if system's libav* libraries are not
provided by FFmpeg. Libav-incompatible changes
were introduced to support the latter so we
can no longer support both.
https://bugzilla.gnome.org/show_bug.cgi?id=758183
Libav-incompatible changes were introduced to support
FFmpeg and we can no longer properly support Libav.
FFmpeg micro versions for libav* start at 100 (this was
done to differentiate from Libav builds). We use this
to bail at configure time if the system libav* libraries
are not provided by FFmpeg.
https://bugzilla.gnome.org/show_bug.cgi?id=758183
If downstream does not provide a (usable) pool, we would use our internal
pool. But the internal pool might be configured with a different width/height
because of padding, which then will cause problems if we push buffers from it
directly downstream.
Instead create a new pool if the width/height is different.
This prevents crashes with vaapisink and d3dvideosink for example.
Based on the debugging results and discussions with
Nicolas Dufresne <nicolas.dufresne@collabora.com>
https://bugzilla.gnome.org/show_bug.cgi?id=758344
... since they handle separate cases in video decoder with different requirements.
Consider e.g. x264enc ! rtph264pay ! identity drop-probability=0.1 ! rtph264depay
to illustrate a need for such separation.
Multithreaded encoders are going to free this dummy codec data twice, e.g.
with this pipeline
gst-launch-1.0 videotestsrc num-buffers=40 ! \
videoconvert ! avenc_mjpeg ! fakesink
Since gst_buffer_pool_set_config() takes ownership of the config structure,
it is only necessary to free the structure before using it when the true
branch of if (gst_buffer_pool_config_validate_params) hasn't run.
gst_buffer_pool_set_config() always takes ownership of the structure
regardless of success or failure. Which means the return, checked with
if (!working_pool), has no relation to the state of the structure.
