static gboolean
gst_cel_video_src_parse_stream_format (GstCelVideoSrc * self,
guint index, CFDictionaryRef stream_format, GstCelVideoFormat * format)
{
GstCMApi *cm = self->ctx->cm;
GstMTApi *mt = self->ctx->mt;
CMFormatDescriptionRef desc;
CMVideoDimensions dim;
UInt32 subtype;
CFNumberRef framerate_value;
SInt32 fps_n;
format->index = index;
desc = CFDictionaryGetValue (stream_format,
*(mt->kFigSupportedFormat_FormatDescription));
dim = cm->CMVideoFormatDescriptionGetDimensions (desc);
format->width = dim.width;
format->height = dim.height;
subtype = cm->CMFormatDescriptionGetMediaSubType (desc);
switch (subtype) {
case kComponentVideoUnsigned:
format->video_format = GST_VIDEO_FORMAT_YUY2;
format->fourcc = GST_MAKE_FOURCC ('Y', 'U', 'Y', '2');
break;
case kYUV420vCodecType:
format->video_format = GST_VIDEO_FORMAT_NV12;
format->fourcc = GST_MAKE_FOURCC ('N', 'V', '1', '2');
break;
default:
goto unsupported_format;
}
framerate_value = CFDictionaryGetValue (stream_format,
*(mt->kFigSupportedFormat_VideoMaxFrameRate));
CFNumberGetValue (framerate_value, kCFNumberSInt32Type, &fps_n);
format->fps_n = fps_n;
format->fps_d = 1;
return TRUE;
unsupported_format:
return FALSE;
}
static void
gst_mio_video_device_formats_foreach (GstMIOVideoDevice * self,
GstMIOVideoDeviceEachFormatFunc func, gpointer user_data)
{
GstCMApi *cm = self->ctx->cm;
GstMIOApi *mio = self->ctx->mio;
TundraTargetSpec spec = { 0, };
GArray *streams;
guint stream_idx;
spec.name = kTundraDevicePropertyStreams;
spec.scope = kTundraScopeInput;
streams = gst_mio_object_get_array (self->handle, &spec,
sizeof (TundraObjectID), mio);
/* TODO: We only consider the first stream for now */
for (stream_idx = 0; stream_idx != MIN (streams->len, 1); stream_idx++) {
TundraObjectID stream;
CFArrayRef formats;
CFIndex num_formats, fmt_idx;
stream = g_array_index (streams, TundraObjectID, stream_idx);
spec.name = kTundraStreamPropertyFormatDescriptions;
spec.scope = kTundraScopeInput;
formats = gst_mio_object_get_pointer (stream, &spec, mio);
num_formats = CFArrayGetCount (formats);
for (fmt_idx = 0; fmt_idx != num_formats; fmt_idx++) {
GstMIOVideoFormat fmt;
fmt.stream = stream;
fmt.desc = (CMFormatDescriptionRef)
CFArrayGetValueAtIndex (formats, fmt_idx);
if (cm->CMFormatDescriptionGetMediaType (fmt.desc) != kFigMediaTypeVideo)
continue;
fmt.type = cm->CMFormatDescriptionGetMediaSubType (fmt.desc);
fmt.dim = cm->CMVideoFormatDescriptionGetDimensions (fmt.desc);
func (self, &fmt, user_data);
}
}
g_array_free (streams, TRUE);
}
void
gst_mio_video_device_print_debug_info (GstMIOVideoDevice * self)
{
GstCMApi *cm = self->ctx->cm;
GstMIOApi *mio = self->ctx->mio;
TundraTargetSpec spec = { 0, };
gchar *str;
GArray *streams;
guint stream_idx;
g_print ("Device %p with handle %d\n", self, self->handle);
spec.scope = kTundraScopeGlobal;
spec.name = kTundraObjectPropertyClass;
str = gst_mio_object_get_fourcc (self->handle, &spec, mio);
g_print (" Class: '%s'\n", str);
g_free (str);
spec.name = kTundraObjectPropertyCreator;
str = gst_mio_object_get_string (self->handle, &spec, mio);
g_print (" Creator: \"%s\"\n", str);
g_free (str);
spec.name = kTundraDevicePropertyModelUID;
str = gst_mio_object_get_string (self->handle, &spec, mio);
g_print (" Model UID: \"%s\"\n", str);
g_free (str);
spec.name = kTundraDevicePropertyTransportType;
str = gst_mio_object_get_fourcc (self->handle, &spec, mio);
g_print (" Transport Type: '%s'\n", str);
g_free (str);
g_print (" Streams:\n");
spec.name = kTundraDevicePropertyStreams;
spec.scope = kTundraScopeInput;
streams = gst_mio_object_get_array (self->handle, &spec,
sizeof (TundraObjectID), mio);
for (stream_idx = 0; stream_idx != streams->len; stream_idx++) {
TundraObjectID stream;
CFArrayRef formats;
CFIndex num_formats, fmt_idx;
stream = g_array_index (streams, TundraObjectID, stream_idx);
g_print (" stream[%u] = %d\n", stream_idx, stream);
spec.scope = kTundraScopeInput;
spec.name = kTundraStreamPropertyFormatDescriptions;
formats = gst_mio_object_get_pointer (stream, &spec, mio);
num_formats = CFArrayGetCount (formats);
g_print (" <%u formats>\n", (guint) num_formats);
for (fmt_idx = 0; fmt_idx != num_formats; fmt_idx++) {
CMFormatDescriptionRef fmt;
gchar *media_type;
gchar *media_sub_type;
CMVideoDimensions dim;
GArray *rates;
guint rate_idx;
fmt = CFArrayGetValueAtIndex (formats, fmt_idx);
media_type = gst_mio_fourcc_to_string
(cm->CMFormatDescriptionGetMediaType (fmt));
media_sub_type = gst_mio_fourcc_to_string
(cm->CMFormatDescriptionGetMediaSubType (fmt));
dim = cm->CMVideoFormatDescriptionGetDimensions (fmt);
g_print (" format[%u]: MediaType='%s' MediaSubType='%s' %ux%u\n",
(guint) fmt_idx, media_type, media_sub_type,
(guint) dim.width, (guint) dim.height);
spec.name = kTundraStreamPropertyFrameRates;
rates = gst_mio_object_get_array_full (stream, &spec, sizeof (fmt), &fmt,
sizeof (TundraFramerate), mio);
for (rate_idx = 0; rate_idx != rates->len; rate_idx++) {
TundraFramerate *rate;
rate = &g_array_index (rates, TundraFramerate, rate_idx);
g_print (" %f\n", rate->value);
}
g_array_free (rates, TRUE);
g_free (media_sub_type);
g_free (media_type);
}
}
g_array_free (streams, TRUE);
}
