Commit graph

30 commits

Author SHA1 Message Date
Sebastian Dröge
79e8d2c03e avvidenc: Offset PTS to zero to fix bitrate control
Otherwise ffmpeg's rate control algorithm will not work correctly as
it is based on the absolute PTS values.

Fixes https://gitlab.freedesktop.org/gstreamer/gst-libav/-/issues/91

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3718>
2023-01-13 17:18:38 +00:00
Guillaume Desmottes
f7e1505a5e libav: avaudec: display flow return name instead of value
More convenient to read in logs. gstavviddec already does it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3700>
2023-01-09 13:25:05 +01:00
Sebastian Dröge
50db59449e avvidenc: Set timebase in the ffmpeg context to nanoseconds and set framerate
As we now actually use the timestamps from ffmpeg for timestamping the
output we would lose a lot of accuracy if the framerate is used.

Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1544

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3634>
2023-01-03 16:46:14 +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
Edward Hervey
6582cd514a avvidenc: Don't leak AVPacket on EOF
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>
2022-11-13 06:59:11 +01:00
Edward Hervey
47833c8b36 avcfg: Don't leak the support GArray when registering flag/enums
* Only create it if we are attempting to put values in it
* If we sucessfully registered the values, only free the GArray
* IF we didn't, also free the backing memory

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>
2022-11-13 06:59:11 +01:00
Edward Hervey
052f23a310 avvidenc: Don't leak filename
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3390>
2022-11-12 10:33:51 +01:00
Nicolas Dufresne
e283c99358 avutils: Add missing space in doc
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3330>
2022-11-05 15:12:08 +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
Edward Hervey
0213536f77 libav: avcfg: Avoid brittle comparision
Subtracting a gint from another (or a guint from another) has no guarantees that
it will result in a gint.

Therefore do the actual comparision instead.

Also use the *actual* type for comparing flags (the field value types are different)

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3319>
2022-11-04 17:59:21 +00:00
Edward Hervey
cadc067bde libav: avcfg: Don't leak duplicate enumvalue entries
If we discard the duplicates, we also need to free the allocated strings.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3319>
2022-11-04 17:59:21 +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
Devin Anderson
0812c753c6 gst-libav: Fix synchronization issues and errors created by the forwarding of
segment events by demuxer.

In order to play nicely with `ffmpeg`, demuxers in `gst-libav` have to make
buffers available to `ffmpeg` while taking the blocking I/O model in `ffmpeg`
into account, which results in buffers not being sent downstream until `ffmpeg`
has processed them in its separate thread.

In constrast, many `gstreamer` events are simply forwarded downstream.
Currently `GST_EVENT_SEGMENT` events are forwarded downstream without any
processing, which can potentially result in:
 * `GST_EVENT_SEGMENT` events being out of sync with buffers
 * `GST_EVENT_SEGMENT` events going out that are incorrect because they apply
   to data seen by the demuxer, but not necessarily seen by downstream elements

I came across this bug when I was attempting to enable G723.1 demuxing/decoding
using the G723.1 demuxer and decoder provided by `ffmpeg`.  I wrote tests to
verify support for the functionality, and found that, in push mode,
`GST_EVENT_SEGMENT` events pushed to the demuxer by the upstream `filesrc`
element would be forwarded to the decoder without modification, resulting in
an internal data streaming error.  With this patch, tests work in both push and
pull mode.

This patch solves the problem by disabling the forwarding of
`GST_EVENT_SEGMENT` events downstream (an initial `GST_EVENT_SEGMENT` event is
still pushed downstream by the demuxer).  It's possible there's a better way to
do this, but, having looked at how a few different `gstreamer` demuxers deal
with `GST_EVENT_SEGMENT` events, it seems like the processing is somewhat
specific to the demuxer implementation, whereas `gst-libav` has one general way
of handling the situation for any `ffmpeg` demuxer.  Perhaps there's a better
way to solve this using the `ffmpeg` API to take advantage of specific demuxer
details.  IDK.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3218>
2022-10-21 23:17:58 +00:00
Mathieu Duponchelle
235be306fd avauddec: address regression with WMA files ..
By outputting lead-in samples that FFmpeg now would like us to ignore,
and discarding trailing samples that it would now like us to output.

See https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1474

Fixes: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1348
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3117>
2022-10-06 01:03:10 +00:00
Tim-Philipp Müller
237b063843 avauddec: fix unnecessary reconfiguration if the audio layout isn't specified
It would constantly want to renegotiate (and spam the debug log) even
though the channel layout hasn't actually changed. We use the same
fallback in gst_ffmpegauddec_negotiate() already.

This happens with WMA files for example.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3103>
2022-10-01 09:28:40 +00:00
Thibault Saunier
6a4425e46a meson: Call pkgconfig.generate in the loop where we declare plugins dependencies
Removing some copy pasted code

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2970>
2022-09-01 21:17:35 +00:00
Seungha Yang
0513e51716 libav: Fix for APNG encoder property registration
The AVClass name of Animated PNG in FFmpeg 5.x is "(A)PNG"
and it will be converted to "-a-png" through
g_ascii_strdown() and g_strcanon(). But GLib disallow leading '-'
character for a GType name. Strip leading '-' to workaround it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2724>
2022-07-08 13:56:35 +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
Sebastian Dröge
abb8d54bb0 avaudenc: Add support for AV_PKT_DATA_SKIP_SAMPLES side data
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1028>
2022-03-14 10:32:15 +02:00
Carlos Rafael Giani
492dc666df avauddec: Add clipping meta support for gapless playback
Co-authored-by: Sebastian Dröge <sebastian@centricular.com>
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1028>
2022-03-14 10:32:15 +02:00
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