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screen-cast-stream-src: Track buffer sequence number

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Use the 'seq' field in the spa_meta_header struct to track buffer
sequence numbers. This can be useful for predictable buffer tracking in
consumers, or for debugging purposes.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4065>
This commit is contained in:
Jonas Ådahl 2024-10-03 10:37:22 +02:00 committed by Marge Bot
parent cb702a7d21
commit bf758f349b
1 changed files with 11 additions and 0 deletions
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11
src/backends/meta-screen-cast-stream-src.c
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@ -124,6 +124,8 @@ typedef struct _MetaScreenCastStreamSrcPrivate
int64_t last_frame_timestamp_us; int64_t last_frame_timestamp_us;
guint follow_up_frame_source_id; guint follow_up_frame_source_id;
uint64_t buffer_sequence_counter;
int buffer_count; int buffer_count;
gboolean needs_follow_up_with_buffers; gboolean needs_follow_up_with_buffers;
@ -1149,6 +1151,15 @@ meta_screen_cast_stream_src_maybe_record_frame_with_timestamp (MetaScreenCastStr
{ {
header->pts = frame_timestamp_us * SPA_NSEC_PER_USEC; header->pts = frame_timestamp_us * SPA_NSEC_PER_USEC;
header->flags = 0; header->flags = 0;
header->seq = ++priv->buffer_sequence_counter;
meta_topic (META_DEBUG_SCREEN_CAST,
"Queuing PipeWire buffer #%" G_GUINT64_FORMAT " (%p)",
header->seq,
buffer->buffer);
}
else
{
meta_topic (META_DEBUG_SCREEN_CAST, "Queuing unsequenced PipeWire buffer");
} }
pw_stream_queue_buffer (priv->pipewire_stream, buffer); pw_stream_queue_buffer (priv->pipewire_stream, buffer);