Makes camerabin2 intercept preview-image messages and add
the filename corresponding to the message structure in the
'location' field.
Makes easier for applications to track preview images
Setting the audio source to NULL just after pushing the EOS event
on it could potentially cause loss of said EOS event. Instead, we
can set the audio source to NULL when ready-for-capture is
signalled and the boolean value is true as this indicates we are
not currently capturing video.
header_length contains the length in bytes after the header_length
field, excluding the 6 byte start code and header_length field.
H.264 streams and some other formats need to be announced in the PSM.
VLC wouldn't play files created with mpegpsmux containing H.264 because
we claim the system header is larger than it actually is, which makes
VLC skip the program stream map which follows the system header, which
in turn makes it not recognise our H.264 video stream.
VP8 uses a probabilistic bool coder, not a straight bit coder.
This fixes parsing when error-resilient is set.
This commit includes a copy of libvpx's bool coder, BSD licensed.
https://bugzilla.gnome.org/show_bug.cgi?id=652694
An element stores the result for the last state change it did and
GstBin's state change handler will use this last result for state
locked elements to decide if its state change was successfull or not.
In camerabin2, the filesinks have their state locked and when they
fail switching states, this last failure will be used if the application
tries to change camerabin2's state, causing any state change to fail.
This patch makes camerabin2 reset this last change failure, avoiding
that camerabin2 fails on its next state changes.
Camerabin2 has a zoom property that is simply proxied to its
internal camera-source element. This patch makes camerabin2 listen
to 'notify' signals from it so it can update its zoom property value
when camera-source changes its zoom as a side-effect of another operation
or because the user set the zoom directly to it, instead of doing
it from camerabin2.
Buffers would always start with timestamp 0 and we'd start streaming
from the first buffer, but live streams always start streaming from
the last fragment - 3 fragments in the playlist, which makes its
timestamp, as returned by get_next_fragment, be whatever position
they had in the playlist. This makes sure the position correctly
reports the position of the buffer in the playlist, and added a shifting
variable to allow seeking in the middle of fragments.
In some networks, especiall in 3G, a fragment download or playlist
update may fail. We allow for up to 3 consecutive failures, while using
the rfc's specs for retry delays before considering that there was an
error on the stream.
If we know that our camera source element produces buffers at the same
resolution and appropriate colourspace for the output, we don't need any
of the generic conversion elements in encodebin. This reduces caps
negotiation overheads among other things.
Fixes interesting race conditions that cause crashes in decodebin2
because pads are added/removed from child elements although they
should be in READY state already.
We should stop the update thread in PAUSED state and avoid fetching
new fragments when the queue is not empty. The queue should always be
empty since we push data into a queue. Also, in totem, if we seek and
pause the stream while it's buffering, then the state will stay playing
for some reason, so it's best not to continue fetching fragments forever.
This is to ensure that we reset the accumulate segment on the sinks
so if we start with audio only then switch to audio+video, then both
sinks will have the same segments and will be synchronized.
If we cancel the fetch and call the stop_fetcher, which holds the lock,
when it sets the fetcher's state to NULL, it might send an error
on the bus. In that case, we must ignore it, otherwise it will try
to take the lock and will block forever.
When caching fragments, if we set the current playlist to main, then
it will always think it's a live stream (no endlist in it) so it will
force the redownload of the main playlist after every seek, which is
unnecessary. Also, it causes a race condition where a seek migh happen
during that redownload, and we'll think we're trying to seek a live pipeline.
Reduce the viewfinder queue limits to only allow it to store
one buffer, preventing the queue from holding old buffers for
too long. This also avoids showing slightly outdated frames on
the viewfinder when the source has already produced new ones
and improves the buffer recycling rate, important for sources
that use bufferpools.
first pause the task, then stop all fetchers, then stop the update thread
then pause the task again, since it might have been restarted by
another thread in the meantime
The reason is to let rtpdtmfmux drop buffers during the inter digit interval,
this way, there will be more silence around the DTMF tones so IVFs will have
a better chance recognizing them.
