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screen-cast/src: Queue follow up frame if no buffers

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If we tried to record but did so before the buffers had the chance to be
added, schedule another follow up frame once the buffers start rolling
in.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3095>
This commit is contained in:
Jonas Ådahl 2023-06-26 22:04:26 +02:00 committed by Marge Bot
parent c724fcae2e
commit eb9ef1da8d
1 changed files with 24 additions and 0 deletions
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24
src/backends/meta-screen-cast-stream-src.c
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@ -107,6 +107,9 @@ typedef struct _MetaScreenCastStreamSrcPrivate
int64_t last_frame_timestamp_us;
guint follow_up_frame_source_id;
int buffer_count;
gboolean needs_follow_up_with_buffers;
gboolean uses_dma_bufs;
GHashTable *dmabuf_handles;
@ -714,6 +717,17 @@ meta_screen_cast_stream_src_maybe_record_frame_with_timestamp (MetaScreenCastStr
priv->redraw_clip = cairo_region_copy (redraw_clip);
}
if (priv->buffer_count == 0)
{
meta_topic (META_DEBUG_SCREEN_CAST,
"Buffers hasn't been added, "
"postponing recording on stream %u",
priv->node_id);
priv->needs_follow_up_with_buffers = TRUE;
return record_result;
}
if (priv->video_format.max_framerate.num > 0 &&
priv->last_frame_timestamp_us != 0)
{
@ -1035,6 +1049,8 @@ on_stream_add_buffer (void *data,
const int bpp = 4;
int stride;
priv->buffer_count++;
stride = SPA_ROUND_UP_N (priv->video_format.size.width * bpp, 4);
spa_data[0].mapoffset = 0;
@ -1123,6 +1139,12 @@ on_stream_add_buffer (void *data,
return;
}
}
if (priv->buffer_count == 1 && priv->needs_follow_up_with_buffers)
{
priv->needs_follow_up_with_buffers = FALSE;
meta_screen_cast_stream_src_record_follow_up (src);
}
}
static void
@ -1135,6 +1157,8 @@ on_stream_remove_buffer (void *data,
struct spa_buffer *spa_buffer = buffer->buffer;
struct spa_data *spa_data = spa_buffer->datas;
priv->buffer_count--;
if (spa_data[0].type == SPA_DATA_DmaBuf)
{
if (!g_hash_table_remove (priv->dmabuf_handles, GINT_TO_POINTER (spa_data[0].fd)))