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aggregator: add simple support for caps handling

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Modelled off the videoaggregator caps handling as that seems the most
mature aggregtor-using implementation that has caps handling there is.

https://bugzilla.gnome.org/show_bug.cgi?id=776931
This commit is contained in:
Matthew Waters 2017-05-20 14:24:57 +02:00 committed by Tim-Philipp Müller
parent 178bbc253d
commit ffe51f38fc
4 changed files with 26 additions and 57 deletions
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15
ext/gl/gstglbasemixer.c
View file

@ -108,11 +108,14 @@ gst_gl_base_mixer_pad_set_property (GObject * object, guint prop_id,
}
static gboolean
_negotiated_caps (GstVideoAggregator * vagg, GstCaps * caps)
_negotiated_caps (GstAggregator * agg, GstCaps * caps)
{
GstGLBaseMixer *mix = GST_GL_BASE_MIXER (vagg);
GstGLBaseMixer *mix = GST_GL_BASE_MIXER (agg);
return gst_gl_base_mixer_do_bufferpool (mix, caps);
if (!gst_gl_base_mixer_do_bufferpool (mix, caps))
return FALSE;
return GST_AGGREGATOR_CLASS (parent_class)->negotiated_src_caps (agg, caps);
}
static gboolean
@ -324,9 +327,6 @@ gst_gl_base_mixer_class_init (GstGLBaseMixerClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstVideoAggregatorClass *videoaggregator_class =
(GstVideoAggregatorClass *) klass;
GstAggregatorClass *agg_class = (GstAggregatorClass *) klass;
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "glmixer", 0, "opengl mixer");
@ -350,8 +350,7 @@ gst_gl_base_mixer_class_init (GstGLBaseMixerClass * klass)
agg_class->src_activate = gst_gl_base_mixer_src_activate_mode;
agg_class->stop = gst_gl_base_mixer_stop;
agg_class->start = gst_gl_base_mixer_start;
videoaggregator_class->negotiated_caps = _negotiated_caps;
agg_class->negotiated_src_caps = _negotiated_caps;
klass->propose_allocation = _default_propose_allocation;

32
ext/gl/gstglmixer.c
View file

@ -96,16 +96,16 @@ gst_gl_mixer_pad_set_property (GObject * object, guint prop_id,
}
static gboolean
_negotiated_caps (GstVideoAggregator * vagg, GstCaps * caps)
_negotiated_caps (GstAggregator * agg, GstCaps * caps)
{
GstGLMixer *mix = GST_GL_MIXER (vagg);
GstGLMixer *mix = GST_GL_MIXER (agg);
gboolean ret;
mix->priv->negotiated = TRUE;
gst_caps_replace (&mix->out_caps, caps);
ret = GST_VIDEO_AGGREGATOR_CLASS (parent_class)->negotiated_caps (vagg, caps);
ret = GST_AGGREGATOR_CLASS (parent_class)->negotiated_src_caps (agg, caps);
return ret;
}
@ -215,29 +215,6 @@ gst_gl_mixer_pad_sink_acceptcaps (GstPad * pad, GstGLMixer * mix,
return ret;
}
/* copies the given caps */
static GstCaps *
_update_caps (GstVideoAggregator * vagg, GstCaps * caps, GstCaps * filter)
{
GstCaps *tmp;
guint i, n;
if (filter) {
tmp = gst_caps_intersect (caps, filter);
tmp = gst_caps_make_writable (tmp);
} else {
tmp = gst_caps_copy (caps);
}
n = gst_caps_get_size (tmp);
for (i = 0; i < n; i++) {
gst_caps_set_features (tmp, i,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_GL_MEMORY));
}
return tmp;
}
static GstCaps *
gst_gl_mixer_pad_sink_getcaps (GstPad * pad, GstGLMixer * mix, GstCaps * filter)
{
@ -391,11 +368,10 @@ gst_gl_mixer_class_init (GstGLMixerClass * klass)
agg_class->src_query = gst_gl_mixer_src_query;
agg_class->stop = gst_gl_mixer_stop;
agg_class->start = gst_gl_mixer_start;
agg_class->negotiated_src_caps = _negotiated_caps;
videoaggregator_class->aggregate_frames = gst_gl_mixer_aggregate_frames;
videoaggregator_class->get_output_buffer = gst_gl_mixer_get_output_buffer;
videoaggregator_class->negotiated_caps = _negotiated_caps;
videoaggregator_class->update_caps = _update_caps;
videoaggregator_class->find_best_format = _find_best_format;
mix_class->propose_allocation = gst_gl_mixer_propose_allocation;

18
ext/gl/gstglstereomix.c
View file

@ -81,10 +81,8 @@ gst_gl_stereo_mix_pad_init (GstGLStereoMixPad * pad)
#define gst_gl_stereo_mix_parent_class parent_class
G_DEFINE_TYPE (GstGLStereoMix, gst_gl_stereo_mix, GST_TYPE_GL_MIXER);
static GstCaps *_update_caps (GstVideoAggregator * vagg, GstCaps * caps,
GstCaps * filter);
static gboolean _negotiated_caps (GstVideoAggregator * videoaggregator,
GstCaps * caps);
static GstCaps *_update_caps (GstVideoAggregator * vagg, GstCaps * caps);
static gboolean _negotiated_caps (GstAggregator * aggregator, GstCaps * caps);
gboolean gst_gl_stereo_mix_make_output (GstGLStereoMix * mix);
static gboolean gst_gl_stereo_mix_process_frames (GstGLStereoMix * mixer);
@ -188,10 +186,10 @@ gst_gl_stereo_mix_class_init (GstGLStereoMixClass * klass)
agg_class->stop = gst_gl_stereo_mix_stop;
agg_class->start = gst_gl_stereo_mix_start;
agg_class->src_query = gst_gl_stereo_mix_src_query;
agg_class->negotiated_src_caps = _negotiated_caps;
videoaggregator_class->aggregate_frames = gst_gl_stereo_mix_aggregate_frames;
videoaggregator_class->update_caps = _update_caps;
videoaggregator_class->negotiated_caps = _negotiated_caps;
videoaggregator_class->get_output_buffer =
gst_gl_stereo_mix_get_output_buffer;
@ -470,7 +468,7 @@ get_converted_caps (GstGLStereoMix * mix, GstCaps * caps)
/* Return the possible output caps based on inputs and downstream prefs */
static GstCaps *
_update_caps (GstVideoAggregator * vagg, GstCaps * caps, GstCaps * filter)
_update_caps (GstVideoAggregator * vagg, GstCaps * caps)
{
GstGLStereoMix *mix = GST_GL_STEREO_MIX (vagg);
GList *l;
@ -563,16 +561,16 @@ _update_caps (GstVideoAggregator * vagg, GstCaps * caps, GstCaps * filter)
/* Called after videoaggregator fixates our caps */
static gboolean
_negotiated_caps (GstVideoAggregator * vagg, GstCaps * caps)
_negotiated_caps (GstAggregator * agg, GstCaps * caps)
{
GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (agg);
GstGLStereoMix *mix = GST_GL_STEREO_MIX (vagg);
GstCaps *in_caps;
GST_LOG_OBJECT (mix, "Configured output caps %" GST_PTR_FORMAT, caps);
if (GST_VIDEO_AGGREGATOR_CLASS (parent_class)->negotiated_caps)
if (!GST_VIDEO_AGGREGATOR_CLASS (parent_class)->negotiated_caps (vagg,
caps))
if (GST_AGGREGATOR_CLASS (parent_class)->negotiated_src_caps)
if (!GST_AGGREGATOR_CLASS (parent_class)->negotiated_src_caps (agg, caps))
return FALSE;
/* Update the glview_convert output */

18
ext/gl/gstglvideomixer.c
View file

@ -453,9 +453,8 @@ static void gst_gl_video_mixer_set_property (GObject * object, guint prop_id,
static void gst_gl_video_mixer_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstCaps *_update_caps (GstVideoAggregator * vagg, GstCaps * caps,
GstCaps * filter);
static GstCaps *_fixate_caps (GstVideoAggregator * vagg, GstCaps * caps);
static GstCaps *_update_caps (GstVideoAggregator * vagg, GstCaps * caps);
static GstCaps *_fixate_caps (GstAggregator * agg, GstCaps * caps);
static gboolean gst_gl_video_mixer_propose_allocation (GstGLBaseMixer *
base_mix, GstGLBaseMixerPad * base_pad, GstQuery * decide_query,
GstQuery * query);
@ -874,9 +873,9 @@ gst_gl_video_mixer_class_init (GstGLVideoMixerClass * klass)
gst_gl_video_mixer_process_textures;
vagg_class->update_caps = _update_caps;
vagg_class->fixate_caps = _fixate_caps;
agg_class->sinkpads_type = GST_TYPE_GL_VIDEO_MIXER_PAD;
agg_class->fixate_src_caps = _fixate_caps;
mix_class->propose_allocation = gst_gl_video_mixer_propose_allocation;
@ -986,7 +985,7 @@ _mixer_pad_get_output_size (GstGLVideoMixer * mix,
}
static GstCaps *
_update_caps (GstVideoAggregator * vagg, GstCaps * caps, GstCaps * filter)
_update_caps (GstVideoAggregator * vagg, GstCaps * caps)
{
GstCaps *ret;
GList *l;
@ -1014,18 +1013,15 @@ _update_caps (GstVideoAggregator * vagg, GstCaps * caps, GstCaps * filter)
GST_OBJECT_UNLOCK (vagg);
if (filter) {
ret = gst_caps_intersect (caps, filter);
} else {
ret = gst_caps_ref (caps);
}
ret = gst_caps_ref (caps);
return ret;
}
static GstCaps *
_fixate_caps (GstVideoAggregator * vagg, GstCaps * caps)
_fixate_caps (GstAggregator * agg, GstCaps * caps)
{
GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (agg);
GstGLVideoMixer *mix = GST_GL_VIDEO_MIXER (vagg);
gint best_width = 0, best_height = 0;
gint best_fps_n = 0, best_fps_d = 0;