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v4l2: bufferpool: Keep processing bitstream buffer

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Bitstream buffers may no fit a single v4l2 buffer, following spec
recommendation, keep processing the buffer until all the data has been
queued.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5100>
This commit is contained in:
Nicolas Dufresne 2023-07-25 12:19:22 -04:00 committed by GStreamer Marge Bot
parent de5e1e334e
commit 76fbc79494
1 changed files with 17 additions and 0 deletions
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17
subprojects/gst-plugins-good/sys/v4l2/gstv4l2bufferpool.c
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@ -2048,6 +2048,8 @@ gst_v4l2_buffer_pool_process (GstV4l2BufferPool * pool, GstBuffer ** buf,
GstV4l2MemoryGroup *group;
gint index;
gboolean outstanding;
gsize queued_size = 0;
gsize remaining_size = 0;
if ((*buf)->pool != bpool)
goto copying;
@ -2121,6 +2123,13 @@ gst_v4l2_buffer_pool_process (GstV4l2BufferPool * pool, GstBuffer ** buf,
goto start_failed;
}
/* Save the amount of data that has been submitted for encoded data */
if (GST_VIDEO_INFO_FORMAT (&pool->caps_info) ==
GST_VIDEO_FORMAT_ENCODED) {
queued_size = gst_buffer_get_size (to_queue);
remaining_size = gst_buffer_get_size (*buf) - queued_size;
}
/* Remove our ref, we will still hold this buffer in acquire as needed,
* otherwise the pool will think it is outstanding and will refuse to stop. */
gst_buffer_unref (to_queue);
@ -2144,6 +2153,14 @@ gst_v4l2_buffer_pool_process (GstV4l2BufferPool * pool, GstBuffer ** buf,
gst_v4l2_buffer_pool_complete_release_buffer (bpool, buffer,
FALSE);
}
/* For encoded data, just queue de remaining in the next available
* buffer. */
if (remaining_size) {
*buf = gst_buffer_make_writable (*buf);
gst_buffer_resize (*buf, queued_size, -1);
return gst_v4l2_buffer_pool_process (pool, buf, frame_number);
}
break;
}
default: