It seems cleaner to use the proper meson tools to include this path
rather than manually tweak the build flags.
This also allows us to simplify the OMX extensions detection code. We
are now always checking which files are present, even when using our
internal copy of OMX, rather than hardcoding the ones present in it.
https://bugzilla.gnome.org/show_bug.cgi?id=792043
This hack tries to pass as much information as possible from caps to the
decoder before it receives any buffer. These information can be used by
the OMX decoder to, for example, pre-allocate its internal buffers
before starting to decode and so reduce its initial latency.
This mechanism is currently supported by the zynqultrascaleplus decoder.
https://bugzilla.gnome.org/show_bug.cgi?id=792040
I find it confusing when debugging that OMX calls returning an error
where not logged as GST_LEVEL_ERROR making them harder to spot.
Fix this by introducing simple log macros checking the return value of
the OMX call and logging failures as errors.
https://bugzilla.gnome.org/show_bug.cgi?id=791069
The Zynq UltraScale+ encoder implements a custom OMX extension to
directly import dmabuf saving the need of mapping input buffers.
This can be use with either 'v4l2src io-mode=dmabuf' or an OMX video
decoder upstream.
https://bugzilla.gnome.org/show_bug.cgi?id=792361
Make use of the new GstVideoEncoder QoS API to drop late input frames. This may
help a live pipeline to catch up if it's being late and all frames end up
being dropped at the sink.
https://bugzilla.gnome.org/show_bug.cgi?id=792783
If something goes wrong while trying to manually copy the input buffer,
the 'break' was moving us out of the 'for' loop but not out of the switch block.
So we ended up calling gst_video_frame_unmap() a second time (raising
assertions) and returning TRUE rather than FALSE.
Reproduced with a WIP zynqultrascaleplus OMX branch reporting wrong
buffer sizes and so triggering this bug.
https://bugzilla.gnome.org/show_bug.cgi?id=792167
If less than 1%.
The dynamic format change should not happen when the
resolution does not change and when only the framerate
changes but very slightly, i.e. from 50000/1677=29.81
to 89/3=29.66 so a "percentage change" of less than 1%
(i.e. 100*(29.81-29.66)/29.66 = 0.50 < 1 ). In that case
just ignore it to avoid unnecessary renegotiation.
https://bugzilla.gnome.org/show_bug.cgi?id=759043
If the OMX component supports dynamic buffer mode and the input buffers
are properly aligned avoid copying each input frame between OMX and
GStreamer.
Tested on zynqultrascaleplus and rpi (without dynamic buffers).
https://bugzilla.gnome.org/show_bug.cgi?id=787093
OMX 1.2.0 introduced a third way to manage buffers by allowing
components to only allocate buffers header during their initialization
and change their pBuffer pointer at runtime.
This new feature can save us a copy between GStreamer and OMX for each
input buffer.
This patch adds API to allocate and use such buffers.
https://bugzilla.gnome.org/show_bug.cgi?id=787093
Some live streams can set the framerate to 50000/1677 (=29.81).
GstVideoInfo.fps_n << 16 is wrong if the fps_n is 50000
(i.e. greater than 32767).
https://bugzilla.gnome.org/show_bug.cgi?id=759043
And uses gst_omx_args instead of add_global_arguments.
Similar to c692328521
which was only for configure.ac
Useful to get omxvp8dec with meson too:
meson . buildtmp -D with_omx_target=tizonia
https://bugzilla.gnome.org/show_bug.cgi?id=782800
The usual pattern when setting OMX params is to first get the struct
param, override the values we want to set and then set the updated
param.
We were not doing this with OMX_IndexParamVideoPortFormat and so were
resetting some fields such as OMX_VIDEO_PARAM_PORTFORMATTYPE.xFramerate
https://bugzilla.gnome.org/show_bug.cgi?id=790979
As stated in the existing comment, when flusing we should wait for OMX
to send the flush command complete event AND all ports being released.
We were stopping as soon as one of those condition was met.
Fix a race between FillThisBufferDone/EmptyBufferDone and the flush
EventCmdComplete messages. The OMX implementation is supposed to release
its buffers before posting the EventCmdComplete event but the ordering
isn't guaranteed as the FillThisBufferDone/EmptyBufferDone and
EventHandler callbacks can be called from different threads (cf 2.7
'Thread Safety' in the spec).
https://bugzilla.gnome.org/show_bug.cgi?id=789475
No semantic change so far, I just made the 'while' end condition easier
to understand as a first step before changing it.
- move error/time out checks inside the loop to make it clearer on what
we are actually waiting for.
- group port->buffers checks together with parenthesis as they are part
of the same conceptual check: waiting for all buffers to be released.
https://bugzilla.gnome.org/show_bug.cgi?id=789475
The Zynq UltraScale+ uses a custom version of OMX implementing several
3rd party extensions. Make sure those are present when building this
target.
https://bugzilla.gnome.org/show_bug.cgi?id=788064
Allegro's HEVC implementation defines a superset of the profiles and
enums from the Android implementation.
Properly cast to fix -Wenum-conversion warnings from clang.
https://bugzilla.gnome.org/show_bug.cgi?id=789057
OMX's allow 3rds party to define extensions using their own enums
(like OMX_VIDEO_CODINGEXTTYPE) and to be used as the general
ones (like OMX_VIDEO_CODINGTYPE).
Properly cast those to fix -Wenum-conversion warnings from some
compilers such as clang.
https://bugzilla.gnome.org/show_bug.cgi?id=789057
The OMX spec doesn't support HEVC but the OMX stack of the
zynqultrascaleplus adds it as a custom extension.
It uses the same API as the one of Android's OMX stack.
I used the H264 encoder code as a template.
https://bugzilla.gnome.org/show_bug.cgi?id=785434
