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vtdec: Prefer GL output caps.

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Prefer GL caps by putting them first in the pad template and
intersecting using GST_CAPS_INTERSECT_FIRST.
This commit is contained in:
Jan Schmidt 2015-09-08 17:17:36 +10:00
parent fcd42b7d77
commit 0d7d7f6c92
1 changed files with 33 additions and 23 deletions
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56
sys/applemedia/vtdec.c
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@ -109,10 +109,10 @@ CFSTR ("RequireHardwareAcceleratedVideoDecoder");
#endif
#define VIDEO_SRC_CAPS \
GST_VIDEO_CAPS_MAKE(GST_VTDEC_VIDEO_FORMAT_STR) ";" \
GST_VIDEO_CAPS_MAKE_WITH_FEATURES \
(GST_CAPS_FEATURE_MEMORY_GL_MEMORY, \
"RGBA") ";"
"RGBA") ";" \
GST_VIDEO_CAPS_MAKE(GST_VTDEC_VIDEO_FORMAT_STR) ";"
G_DEFINE_TYPE (GstVtdec, gst_vtdec, GST_TYPE_VIDEO_DECODER);
@ -244,24 +244,45 @@ out:
return ret;
}
static GstVideoFormat
gst_vtdec_negotiate_output_format (GstVtdec * vtdec)
static gboolean
gst_vtdec_negotiate_output_format (GstVtdec * vtdec, GstVideoCodecState *input_state)
{
GstCaps *caps = NULL;
GstVideoFormat format;
GstCaps *caps = NULL, *peercaps = NULL, *templcaps;
GstVideoFormat output_format;
GstVideoCodecState *output_state = NULL;
GstCapsFeatures *features;
GstStructure *structure;
const gchar *s;
caps = gst_pad_get_allowed_caps (GST_VIDEO_DECODER_SRC_PAD (vtdec));
if (!caps)
caps = gst_pad_query_caps (GST_VIDEO_DECODER_SRC_PAD (vtdec), NULL);
peercaps = gst_pad_peer_query_caps (GST_VIDEO_DECODER_SRC_PAD (vtdec), NULL);
/* Check if output supports GL caps by preference */
templcaps = gst_pad_get_pad_template_caps (GST_VIDEO_DECODER_SRC_PAD (vtdec));
caps = gst_caps_intersect_full (templcaps, peercaps, GST_CAPS_INTERSECT_FIRST);
gst_caps_unref (peercaps);
gst_caps_unref (templcaps);
caps = gst_caps_truncate (caps);
structure = gst_caps_get_structure (caps, 0);
s = gst_structure_get_string (structure, "format");
format = gst_video_format_from_string (s);
output_format = gst_video_format_from_string (s);
features = gst_caps_features_copy (gst_caps_get_features (caps, 0));
gst_caps_unref (caps);
return format;
if (!gst_vtdec_create_session (vtdec, output_format)) {
gst_caps_features_free (features);
return FALSE;
}
output_state = gst_video_decoder_set_output_state (GST_VIDEO_DECODER (vtdec),
output_format, vtdec->video_info.width, vtdec->video_info.height, input_state);
output_state->caps = gst_video_info_to_caps (&output_state->info);
gst_caps_set_features (output_state->caps, 0, features);
return TRUE;
}
static gboolean
@ -272,8 +293,6 @@ gst_vtdec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
CMFormatDescriptionRef format_description = NULL;
const char *caps_name;
GstVtdec *vtdec = GST_VTDEC (decoder);
GstVideoFormat output_format;
GstVideoCodecState *output_state;
GST_DEBUG_OBJECT (vtdec, "set_format");
@ -313,18 +332,9 @@ gst_vtdec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
CFRelease (vtdec->format_description);
vtdec->format_description = format_description;
output_format = gst_vtdec_negotiate_output_format (vtdec);
if (!gst_vtdec_create_session (vtdec, output_format))
if (!gst_vtdec_negotiate_output_format (vtdec, state))
return FALSE;
output_state = gst_video_decoder_set_output_state (decoder,
output_format, vtdec->video_info.width, vtdec->video_info.height, state);
output_state->caps = gst_video_info_to_caps (&output_state->info);
if (output_state->info.finfo->format == GST_VIDEO_FORMAT_RGBA) {
gst_caps_set_features (output_state->caps, 0,
gst_caps_features_new (GST_CAPS_FEATURE_MEMORY_GL_MEMORY, NULL));
}
return TRUE;
}