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applemedia: replace private function with its public variant

Browse source 
FigVideoFormatDescriptionCreateWithSampleDescriptionExtensionAtom
is an un-documented private function which might change its signature
as it already did in the past. Replace it with
CMVideoFormatDescriptionCreate and the also un-documented Extensions
dictionary.
This commit is contained in:
Andoni Morales Alastruey 2013-04-25 11:17:16 +02:00 committed by Sebastian Dröge
parent 9b168e6b4d
commit c69f41d299
3 changed files with 76 additions and 10 deletions
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41
sys/applemedia/vtdec.c
View file

@ -54,11 +54,6 @@ static gboolean gst_vtdec_sink_event (GstPad * pad, GstObject * parent,
static CMSampleBufferRef gst_vtdec_sample_buffer_from (GstVTDec * self,
GstBuffer * buf);
extern OSStatus FigVideoFormatDescriptionCreateWithSampleDescriptionExtensionAtom
(CFAllocatorRef allocator, UInt32 formatId, UInt32 width, UInt32 height,
UInt32 atomId, const UInt8 * data, CFIndex len, void *unk1,
CMFormatDescriptionRef * formatDesc);
static void
gst_vtdec_base_init (GstVTDecClass * klass)
{
@ -359,15 +354,41 @@ gst_vtdec_create_format_description_from_codec_data (GstVTDec * self,
GstBuffer * codec_data)
{
CMFormatDescriptionRef fmt_desc;
OSStatus status;
CFMutableDictionaryRef extensions, par, atoms;
GstMapInfo map;
OSStatus status;
gst_buffer_map (codec_data, &map, GST_MAP_READ);
status =
FigVideoFormatDescriptionCreateWithSampleDescriptionExtensionAtom (NULL,
self->details->format_id, self->vinfo.width, self->vinfo.height, 'avcC',
map.data, map.size, NULL, &fmt_desc);
/* CVPixelAspectRatio dict */
par = CFDictionaryCreateMutable (NULL, 0, &kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
gst_vtutil_dict_set_i32 (par, CFSTR ("HorizontalSpacing"),
self->vinfo.par_n);
gst_vtutil_dict_set_i32 (par, CFSTR ("VerticalSpacing"),
self->vinfo.par_d);
/* SampleDescriptionExtensionAtoms dict */
atoms = CFDictionaryCreateMutable (NULL, 0, &kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
gst_vtutil_dict_set_data (atoms, CFSTR ("avcC"), map.data, map.size);
/* Extensions dict */
extensions = CFDictionaryCreateMutable (NULL, 0, &kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
gst_vtutil_dict_set_string (extensions,
CFSTR ("CVImageBufferChromaLocationBottomField"), "left");
gst_vtutil_dict_set_string (extensions,
CFSTR ("CVImageBufferChromaLocationTopField"), "left");
gst_vtutil_dict_set_boolean (extensions, CFSTR("FullRangeVideo"), FALSE);
gst_vtutil_dict_set_object (extensions, CFSTR ("CVPixelAspectRatio"),
(CFTypeRef *) par);
gst_vtutil_dict_set_object (extensions,
CFSTR ("SampleDescriptionExtensionAtoms"), (CFTypeRef *) atoms);
status = CMVideoFormatDescriptionCreate (NULL,
self->details->format_id, self->vinfo.width, self->vinfo.height,
extensions, &fmt_desc);
gst_buffer_unmap (codec_data, &map);

37
sys/applemedia/vtutil.c
View file

@ -59,3 +59,40 @@ gst_vtutil_dict_set_i32 (CFMutableDictionaryRef dict, CFStringRef key,
CFDictionarySetValue (dict, key, number);
CFRelease (number);
}
void
gst_vtutil_dict_set_string (CFMutableDictionaryRef dict, CFStringRef key,
const gchar * value)
{
CFStringRef string;
string = CFStringCreateWithCString (NULL, value, kCFStringEncodingASCII);
CFDictionarySetValue (dict, key, string);
CFRelease (string);
}
void
gst_vtutil_dict_set_boolean (CFMutableDictionaryRef dict, CFStringRef key,
gboolean value)
{
CFDictionarySetValue (dict, key, value ? kCFBooleanTrue: kCFBooleanFalse);
}
void
gst_vtutil_dict_set_data (CFMutableDictionaryRef dict, CFStringRef key,
guint8 * value, guint64 length)
{
CFDataRef data;
data = CFDataCreate (NULL, value, length);
CFDictionarySetValue (dict, key, data);
CFRelease (data);
}
void
gst_vtutil_dict_set_object (CFMutableDictionaryRef dict, CFStringRef key,
CFTypeRef *value)
{
CFDictionarySetValue (dict, key, value);
CFRelease (value);
}

8
sys/applemedia/vtutil.h
View file

@ -29,6 +29,14 @@ gchar * gst_vtutil_object_to_string (CFTypeRef obj);
gchar * gst_vtutil_string_to_utf8 (CFStringRef s);
void gst_vtutil_dict_set_i32 (CFMutableDictionaryRef dict,
CFStringRef key, gint32 value);
void gst_vtutil_dict_set_string (CFMutableDictionaryRef dict,
CFStringRef key, const gchar * value);
void gst_vtutil_dict_set_boolean (CFMutableDictionaryRef dict,
CFStringRef key, gboolean value);
void gst_vtutil_dict_set_data (CFMutableDictionaryRef dict,
CFStringRef key, guint8 * value, guint64 length);
void gst_vtutil_dict_set_object (CFMutableDictionaryRef dict,
CFStringRef key, CFTypeRef * value);
G_END_DECLS