mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-23 02:01:12 +00:00
videotestsrc: Don't re-render every frame when it's not needed.
When the pattern being rendered by videotestsrc doesn't have motion, cache a rendered buffer and output it repeatedly with updated metadata. Based on a patch by Edward Hervey <edward@centricular.com> Fixes https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/issues/10 Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1293>
This commit is contained in:
Jan Schmidt
Guillaume Desmottes
parent
b3c71584e0
commit
1b22ffdfbd
2 changed files with 142 additions and 21 deletions
|
|
@ -521,6 +521,59 @@ gst_video_test_src_src_fixate (GstBaseSrc * bsrc, GstCaps * caps)
|
|||
return caps;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_video_test_src_is_static_pattern (GstVideoTestSrc * videotestsrc)
|
||||
{
|
||||
switch (videotestsrc->pattern_type) {
|
||||
case GST_VIDEO_TEST_SRC_SMPTE:
|
||||
case GST_VIDEO_TEST_SRC_SNOW:
|
||||
case GST_VIDEO_TEST_SRC_BLINK:
|
||||
case GST_VIDEO_TEST_SRC_BALL:
|
||||
return FALSE;
|
||||
|
||||
case GST_VIDEO_TEST_SRC_ZONE_PLATE:
|
||||
case GST_VIDEO_TEST_SRC_CHROMA_ZONE_PLATE:
|
||||
if (videotestsrc->kxt != 0 || videotestsrc->kyt != 0 ||
|
||||
videotestsrc->kt != 0 || videotestsrc->kt2 != 0) {
|
||||
return FALSE;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
switch (videotestsrc->pattern_type) {
|
||||
/* Any pattern that's not a solid color is non-static
|
||||
* with horizontal motion */
|
||||
case GST_VIDEO_TEST_SRC_SMPTE:
|
||||
case GST_VIDEO_TEST_SRC_SNOW:
|
||||
case GST_VIDEO_TEST_SRC_CHECKERS1:
|
||||
case GST_VIDEO_TEST_SRC_CHECKERS2:
|
||||
case GST_VIDEO_TEST_SRC_CHECKERS4:
|
||||
case GST_VIDEO_TEST_SRC_CHECKERS8:
|
||||
case GST_VIDEO_TEST_SRC_CIRCULAR:
|
||||
case GST_VIDEO_TEST_SRC_BLINK:
|
||||
case GST_VIDEO_TEST_SRC_SMPTE75:
|
||||
case GST_VIDEO_TEST_SRC_ZONE_PLATE:
|
||||
case GST_VIDEO_TEST_SRC_GAMUT:
|
||||
case GST_VIDEO_TEST_SRC_CHROMA_ZONE_PLATE:
|
||||
case GST_VIDEO_TEST_SRC_BALL:
|
||||
case GST_VIDEO_TEST_SRC_SMPTE100:
|
||||
case GST_VIDEO_TEST_SRC_BAR:
|
||||
case GST_VIDEO_TEST_SRC_PINWHEEL:
|
||||
case GST_VIDEO_TEST_SRC_SPOKES:
|
||||
case GST_VIDEO_TEST_SRC_GRADIENT:
|
||||
case GST_VIDEO_TEST_SRC_COLORS:
|
||||
if (videotestsrc->horizontal_speed)
|
||||
return FALSE;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_video_test_src_set_pattern (GstVideoTestSrc * videotestsrc,
|
||||
int pattern_type)
|
||||
|
|
@ -618,6 +671,7 @@ gst_video_test_src_set_property (GObject * object, guint prop_id,
|
|||
const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstVideoTestSrc *src = GST_VIDEO_TEST_SRC (object);
|
||||
gboolean invalidate = TRUE;
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_PATTERN:
|
||||
|
|
@ -625,9 +679,11 @@ gst_video_test_src_set_property (GObject * object, guint prop_id,
|
|||
break;
|
||||
case PROP_TIMESTAMP_OFFSET:
|
||||
src->timestamp_offset = g_value_get_int64 (value);
|
||||
invalidate = FALSE;
|
||||
break;
|
||||
case PROP_IS_LIVE:
|
||||
gst_base_src_set_live (GST_BASE_SRC (src), g_value_get_boolean (value));
|
||||
invalidate = FALSE;
|
||||
break;
|
||||
case PROP_K0:
|
||||
src->k0 = g_value_get_int (value);
|
||||
|
|
@ -686,6 +742,12 @@ gst_video_test_src_set_property (GObject * object, guint prop_id,
|
|||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (invalidate) {
|
||||
/* Property change invalidated the current pattern - check if it's static now or not */
|
||||
src->have_static_pattern = gst_video_test_src_is_static_pattern (src);
|
||||
gst_clear_buffer (&src->cached);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -964,6 +1026,8 @@ gst_video_test_src_setcaps (GstBaseSrc * bsrc, GstCaps * caps)
|
|||
videotestsrc->running_time = 0;
|
||||
videotestsrc->n_frames = 0;
|
||||
|
||||
gst_clear_buffer (&videotestsrc->cached);
|
||||
|
||||
GST_OBJECT_UNLOCK (videotestsrc);
|
||||
|
||||
return TRUE;
|
||||
|
|
@ -1132,10 +1196,9 @@ gst_video_test_src_is_seekable (GstBaseSrc * psrc)
|
|||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_video_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer)
|
||||
fill_image (GstPushSrc * psrc, GstBuffer * buffer)
|
||||
{
|
||||
GstVideoTestSrc *src;
|
||||
GstClockTime next_time;
|
||||
GstVideoFrame frame;
|
||||
gconstpointer pal;
|
||||
gsize palsize;
|
||||
|
|
@ -1155,18 +1218,9 @@ gst_video_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer)
|
|||
goto eos;
|
||||
}
|
||||
|
||||
GST_LOG_OBJECT (src,
|
||||
"creating buffer from pool for frame %" G_GINT64_FORMAT, src->n_frames);
|
||||
|
||||
if (!gst_video_frame_map (&frame, &src->info, buffer, GST_MAP_WRITE))
|
||||
goto invalid_frame;
|
||||
|
||||
GST_BUFFER_PTS (buffer) =
|
||||
src->accum_rtime + src->timestamp_offset + src->running_time;
|
||||
GST_BUFFER_DTS (buffer) = GST_CLOCK_TIME_NONE;
|
||||
|
||||
gst_object_sync_values (GST_OBJECT (psrc), GST_BUFFER_PTS (buffer));
|
||||
|
||||
src->make_image (src, GST_BUFFER_PTS (buffer), &frame);
|
||||
|
||||
if ((pal = gst_video_format_get_palette (GST_VIDEO_FRAME_FORMAT (&frame),
|
||||
|
|
@ -1175,6 +1229,69 @@ gst_video_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer)
|
|||
}
|
||||
|
||||
gst_video_frame_unmap (&frame);
|
||||
return GST_FLOW_OK;
|
||||
|
||||
not_negotiated:
|
||||
{
|
||||
return GST_FLOW_NOT_NEGOTIATED;
|
||||
}
|
||||
eos:
|
||||
{
|
||||
GST_DEBUG_OBJECT (src, "eos: 0 framerate, frame %d", (gint) src->n_frames);
|
||||
return GST_FLOW_EOS;
|
||||
}
|
||||
invalid_frame:
|
||||
{
|
||||
GST_DEBUG_OBJECT (src, "invalid frame");
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_video_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer)
|
||||
{
|
||||
GstVideoTestSrc *src = GST_VIDEO_TEST_SRC (psrc);
|
||||
GstClockTime next_time;
|
||||
GstFlowReturn ret;
|
||||
|
||||
GstClockTime pts =
|
||||
src->accum_rtime + src->timestamp_offset + src->running_time;
|
||||
|
||||
gst_object_sync_values (GST_OBJECT (src), pts);
|
||||
|
||||
if (src->have_static_pattern) {
|
||||
GstVideoFrame sframe, dframe;
|
||||
|
||||
if (src->cached == NULL) {
|
||||
src->cached = gst_buffer_new_allocate (NULL, src->info.size, NULL);
|
||||
|
||||
ret = fill_image (GST_PUSH_SRC (src), src->cached);
|
||||
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
||||
goto fill_failed;
|
||||
} else {
|
||||
GST_LOG_OBJECT (src, "Reusing cached pattern buffer");
|
||||
}
|
||||
|
||||
/* Do a memory copy instead of just passing a reference to this buffer to
|
||||
* be consistent with other sources. This should make things clear for
|
||||
* cases where downstream cannot queue the same buffer twice (such as v4l2)
|
||||
*/
|
||||
gst_video_frame_map (&sframe, &src->info, src->cached, GST_MAP_READ);
|
||||
gst_video_frame_map (&dframe, &src->info, buffer, GST_MAP_WRITE);
|
||||
|
||||
if (!gst_video_frame_copy (&dframe, &sframe))
|
||||
goto copy_failed;
|
||||
|
||||
gst_video_frame_unmap (&sframe);
|
||||
gst_video_frame_unmap (&dframe);
|
||||
} else {
|
||||
ret = fill_image (GST_PUSH_SRC (src), buffer);
|
||||
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
||||
goto fill_failed;
|
||||
}
|
||||
|
||||
GST_BUFFER_PTS (buffer) = pts;
|
||||
GST_BUFFER_DTS (buffer) = GST_CLOCK_TIME_NONE;
|
||||
|
||||
GST_DEBUG_OBJECT (src, "Timestamp: %" GST_TIME_FORMAT " = accumulated %"
|
||||
GST_TIME_FORMAT " + offset: %"
|
||||
|
|
@ -1211,22 +1328,20 @@ gst_video_test_src_fill (GstPushSrc * psrc, GstBuffer * buffer)
|
|||
|
||||
return GST_FLOW_OK;
|
||||
|
||||
not_negotiated:
|
||||
fill_failed:
|
||||
{
|
||||
return GST_FLOW_NOT_NEGOTIATED;
|
||||
GST_DEBUG_OBJECT (src, "fill returned %d (%s)", ret,
|
||||
gst_flow_get_name (ret));
|
||||
return ret;
|
||||
}
|
||||
eos:
|
||||
copy_failed:
|
||||
{
|
||||
GST_DEBUG_OBJECT (src, "eos: 0 framerate, frame %d", (gint) src->n_frames);
|
||||
return GST_FLOW_EOS;
|
||||
}
|
||||
invalid_frame:
|
||||
{
|
||||
GST_DEBUG_OBJECT (src, "invalid frame");
|
||||
return GST_FLOW_OK;
|
||||
GST_DEBUG_OBJECT (src, "Failed to copy cached buffer");
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static gboolean
|
||||
gst_video_test_src_start (GstBaseSrc * basesrc)
|
||||
{
|
||||
|
|
@ -1268,6 +1383,8 @@ gst_video_test_src_stop (GstBaseSrc * basesrc)
|
|||
src->n_lines = 0;
|
||||
src->lines = NULL;
|
||||
|
||||
gst_clear_buffer (&src->cached);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -206,6 +206,10 @@ struct _GstVideoTestSrc {
|
|||
guint n_lines;
|
||||
gint offset;
|
||||
gpointer *lines;
|
||||
|
||||
/* cached buffer used for static patterns that don't change */
|
||||
GstBuffer *cached;
|
||||
gboolean have_static_pattern;
|
||||
};
|
||||
|
||||
GST_ELEMENT_REGISTER_DECLARE (videotestsrc);
|
||||
|
|
|
|||
Loading…
Reference in a new issue