Commit graph

38 commits

Author SHA1 Message Date
Edward Hervey
f7337b7477 ffmpeg: Don't register elements for which we have no caps
We would previously register a whole bunch of encoder/decoder for which the caps
were ... "unknown/unknown".

Add a function to quickly check (without generating caps) whether a given
AVCodecID has a known mapping (which can include the {video|audio}/x-gst-av-*
ones) without generating the caps.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6237>
2024-07-25 12:14:50 +00:00
Sebastian Dröge
1953bc6122 avviddec: Only use 2 ticks per frame if decoding interlaced video
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6505>
2024-07-08 14:31:39 +00:00
Sebastian Dröge
73d0cac16c libav: Update AVCodecContext lifetime to work properly with ffmpeg 7
avcodec_close() is deprecated and it's not supported anymore to re-open
a codec, so we only ever allocate the codec in set_format() now and
always free it after usage.

As part of this, also fix various memory leaks in related code paths.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6505>
2024-07-08 14:31:39 +00:00
Edward Hervey
aab2f59d02 avviddec: Rename variables and fuse function
* gst_ffmpegviddec_frame() is the only caller of gst_ffmpegviddec_video_frame()
  and has the same signature. Just move the checks into a single function and
  use that.
* Make it clear which frames are the input and output ones in
  gst_ffmpegviddec_video_frame() to make issues like the one fixed in the previous
  commit more obvious.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6851>
2024-05-15 13:20:54 +00:00
Edward Hervey
64cac1ed99 avvidec: Fix dropping wrong "ghost" frames
This fixes the code regarding dropping "ghost frames", that is to say input
frames which ended up not producing any decoded frame.

The iteration itself makes sense.. but it was stopping at the "input" frame and
not the decoded frame we just got back.

When dealing with I-frame codecs, ffmpeg will decode frames in separate frames,
so there is no guarantee that they are decoding in order.

Fixes playback issues with such codecs

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6842>
2024-05-14 13:52:52 +02:00
Seungha Yang
bc8a3ca526 avviddec: Fix AVPacket leak
av_packet_unref() does not release allocated memory.
av_packet_free() is the correct free function.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6544>
2024-04-04 19:39:09 +00:00
U. Artie Eoff
b699341ac9 libav: guard dropped AV_CODEC_ID_AYUV api
The FF_API_AYUV_CODECID api was dropped in upstream:

https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/9ee59b63f5ea

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6341>
2024-04-02 07:12:37 +00:00
Edward Hervey
086ecb008f avviddec: Fix how we get back the codec frame
With the new copy_opaque system, the corresponding frame is stored in the
picture opaque ref.

This also handles the case where the "regular" opaque might be empty in the
case of "DECODE_ONLY" frames, since it that field is set in `get_buffer2()`
which might not be called for those frames

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6301>
2024-03-11 10:17:41 +00:00
Edward Hervey
eacd5c1cb1 avviddec: Improve debug statements
Add SFN to better track what is going on

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6301>
2024-03-11 10:17:41 +00:00
Seungha Yang
37578454b9 avviddec: Fix interlaced mode detection
Fixing regression introduced by the commit b46559102b

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6285>
2024-03-07 11:53:07 +00:00
Seungha Yang
781fc4a1b6 avviddec: Fix crash with FFmpeg n6.0
FFmpeg version 6.0 has an AV_CODEC_FLAG_COPY_OPAQUE related bug.

See a3bf63c26e

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6184>
2024-02-22 18:54:45 +00:00
L. E. Segovia
b46559102b libav: Port deprecated AVFrame fields to flags
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5186>
2024-01-17 08:39:13 +00:00
L. E. Segovia
09de59477a libav: Port AVCodecContext.ticks_per_frame to AV_CODEC_PROP_FIELDS
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5186>
2024-01-17 08:39:13 +00:00
L. E. Segovia
4dc955e94a libav: Port reordered_opaque usage to ref-counted opaque_ref
Instead of passing along the system frame number, we pass along a reference to
the GstVideoCodecFrame.

In order for all internal cleanup to happen properly, this also requires
switching to the proper AVPacket creation/destruction methods (av_packet_alloc()
and av_packet_unref())

Fixes #2568

Co-authored-by: Edward Hervey <edward@centricular.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5186>
2024-01-17 08:39:13 +00:00
Philippe Normand
84d9e5b6e7 avviddec: Calculate latency only for fixed framerate
The framerate was checked correctly in _negotiate, but not in _set_format.

Also fix loss of precision in _negotiate when calculating the framerate.

Fixes #3093

Co-authored-by: Sebastian Dröge <sebastian@centricular.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5600>
2023-12-17 12:48:44 +00:00
Seungha Yang
d2c9200828 avviddec: Unlock stream lock while waiting for decoded frame
FFmpeg might request buffer from other threads, it will result
in deadlock

Fixes: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/2558
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5681>
2023-11-16 18:02:30 +00:00
Edward Hervey
ebf7966a26 avvidec: Fix more deprecated symbol
We only used these fields for debugging anyway

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4635>
2023-06-13 20:12:11 +00:00
Edward Hervey
447ee0b566 avvidec: Fix usage of deprecated field
Since ffmpeg 6.0 frame_num is used instead of frame_number

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4635>
2023-06-13 20:12:11 +00:00
Sebastian Dröge
186d8a99cc avviddec: Temporarily unlock stream lock while flushing buffers
This can call into the decoder again from other threads and try to take
the stream lock from there, which would cause a deadlock.

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/2558

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4610>
2023-05-13 10:20:32 +00:00
Tim-Philipp Müller
3ad4128084 gst-libav: re-indent with GNU indent 2.2.12
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4182>
2023-03-17 03:18:54 +00:00
Nicolas Dufresne
83985ae1fa avviddec: Drop decoder stream lock when calling send_packet
This is already done for every other calls to send_packet. The deadlock occures
since FFMPeg 6.0. The decoder tries to get a buffer from a thread during
the draining process, and blocks trying to get the video decoder stream lock
already heald by the drain function.

Fixes #2383

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4171>
2023-03-15 16:52:57 +00:00
Sebastian Dröge
236465e5d4 ffmpeg: avauddec/avviddec: Free packet side data after usage
As we don't use proper refcounting with AVPacket we have to manage this
ourselves.

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/2006

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4076>
2023-02-28 12:01:57 +00:00
U. Artie Eoff
233de05a98 avviddec: change AV_CODEC_CAP_AUTO_THREADS->AV_CODEC_CAP_OTHER_THREADS
This fixes a compile error with recent upstream FFmpeg.

The AV_CODEC_CAP_AUTO_THREADS was deprecated and renamed to
AV_CODEC_CAP_OTHER_THREADS in FFmpeg upstream commit
7d09579190de (lavc 58.132.100).

The AV_CODEC_CAP_AUTO_THREADS was finally removed in FFmpeg upstream
commit 10c9a0874cb3 (lavc 59.63.100).

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3951>
2023-02-14 09:01:04 -05:00
Tim-Philipp Müller
8a047a619e gst-libav: drop use of GSlice allocator
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3784>
2023-02-03 17:48:09 +00:00
Sebastian Dröge
1cbb145c50 avviddec: Disable AV1 decoder
We have various elements for AV1 decoding, the ffmpeg one only works if
hardware support is available and seems to require special signalling.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3610>
2022-12-20 14:10:01 +02:00
Sebastian Dröge
925715c734 av{aud,vid}dec: Report decoding errors to the base class
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1889>
2022-12-01 13:40:53 +00:00
Philippe Normand
090cf943ed avviddec: Report flow error when decoder refused packet
In cases where an invalid input packet is submitted to the decoder we emit a
warning but reporting the flow error upstream would also be useful. This came up
with a case were the application interacts directly with the decoder, using a
mechanism similar to GstHarness.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3463>
2022-11-30 11:51:12 +00:00
Edward Hervey
c39400b52c avviddec: Report a latency even without upstream framerate
There are cases where upstream will not provide a framerate, or it won't be
fixed. But if there is latency introduced by the decoder we do want to report
it.

Therefore use the framerate stored in the actual decoder, which will have a
default.

Fixes hangs when playing back such streams with decodebin3 (where the multiqueue
will not have been informed of that downstream latency and not grow accordingly)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3391>
2022-11-16 10:42:18 +00:00
Nicolas Dufresne
7b70de580c avviddec: Initialize std_compliance to default
This was missed in the initial patch.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3330>
2022-11-05 15:12:08 +00:00
Nicolas Dufresne
99ec53073a avviddec: Introduce a class for shared properties
Without a parent class,the documentation would need to be duplicated for
every CODECs. This patch adds an abstract class in between GstVideoDecoder
and the element.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3311>
2022-11-02 19:23:14 +00:00
Seungha Yang
af05abdb79 avviddec: Expose std-compliance option
Default compliance mode (i.e., FF_COMPLIANCE_NORMAL) might not
strictly follow specification. This property will allow user
to specifiy expected compliance mode.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3311>
2022-11-02 19:23:14 +00:00
Nicolas Dufresne
5c2eba666b avdec_h265: Fix endless renegoation with alternate interlacing
The picture parameter picture->top_field_first is reused in this mode
to signal the TOP fields. As a side effect, it will change every frame
and current code assumed that if this changes then a renegotiation is
needed. Fixed this by ignoring that change whenever we are decoding one field
only.

Fixes #1523

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3276>
2022-10-27 13:34:48 +00:00
Nicolas Dufresne
9ebe338d80 avviddec: Avoid flushing on framerate changes
A framerate change does not require flushing the decoder and causes
issues with some specific fragmented files if the two fragments have
different framerate.

Fixes #1522

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3270>
2022-10-26 17:23:02 +00:00
Vivia Nikolaidou
b90d02741e avviddec, video.c, h265parse: Workaround for broken field-based interlaced encoders
Some encoders (e.g. Makito) have H265 field-based interlacing, but then
also specify an 1:2 pixel aspect ratio. That makes it kind-of work with
decoders that don't properly support field-based decoding, but makes us
end up with the wrong aspect ratio if we implement everything properly.
As a workaround, detect 1:2 pixel aspect ratio for field-based
interlacing, and check if making that 1:1 would make the new display
aspect ratio common. In that case, we override it with 1:1.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2577>
2022-06-16 10:03:02 +00:00
Guillaume Desmottes
7933fff83c libav: fix frame leak on negotiation error
The function owns a reference on the frame. Drop it if negotiation
failed as we are already doing for the other error cases.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2196>
2022-04-18 07:13:09 +00:00
Edward Hervey
be1b31b5f8 avviddec: Remove vc1/wmv3 override
FFMPEG 5+ doesn't allow overriding the codec anymore (causes a segfault if you
attempt to do that). But the best part is ... that with the current caps
implementation in pad template and gst_ffmpeg_caps_to_codecid() we would never
replace it by anything different than the existing codec id.

Fixes #1054

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2052>
2022-03-29 11:46:45 +00:00
Xi Ruoyao
6ea56e7fd3 gst-libav: fix build with ffmpeg-5.0.0
Latest ffmpeg has removed avcodec_get_context_defaults(), and its
documentation says a new AVCodecContext should be allocated for this
purpose.  The pointer returned by avcodec_find_decoder() is now
const-qualified so we also need to adjust for it.  And, AVCOL_RANGE_MPEG
is now rejected with strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1531>
2022-01-17 18:11:32 +08:00
Thibault Saunier
7a371e75b7 Move files from gst-libav into the "subprojects/gst-libav/" subdir 2021-09-24 16:15:08 -03:00
Renamed from ext/libav/gstavviddec.c (Browse further)