+++ /dev/null
-/*
- * Copyright (C) 2009 Ole André Vadla Ravnås <oleavr@soundrop.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "qtkitvideosrc.h"
-#import "corevideobuffer.h"
-#include "glcontexthelper.h"
-
-#import <QTKit/QTKit.h>
-
-#define DEFAULT_DEVICE_INDEX -1
-
-#define DEVICE_YUV_FOURCC "UYVY"
-#define DEVICE_FPS_N 30
-#define DEVICE_FPS_D 1
-
-#define FRAME_QUEUE_SIZE 2
-
-GST_DEBUG_CATEGORY (gst_qtkit_video_src_debug);
-#define GST_CAT_DEFAULT gst_qtkit_video_src_debug
-
-static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (
- "video/x-raw, "
- "format =" DEVICE_YUV_FOURCC ", "
- "width = (int) 640, "
- "height = (int) 480, "
- "framerate = [0/1, 100/1], "
- "pixel-aspect-ratio = (fraction) 1/1"
- "; "
- "video/x-raw, "
- "format =" DEVICE_YUV_FOURCC ", "
- "width = (int) 160, "
- "height = (int) 120, "
- "framerate = [0/1, 100/1], "
- "pixel-aspect-ratio = (fraction) 1/1"
- "; "
- "video/x-raw, "
- "format =" DEVICE_YUV_FOURCC ", "
- "width = (int) 176, "
- "height = (int) 144, "
- "framerate = [0/1, 100/1], "
- "pixel-aspect-ratio = (fraction) 12/11"
- "; "
- "video/x-raw, "
- "format =" DEVICE_YUV_FOURCC ", "
- "width = (int) 320, "
- "height = (int) 240, "
- "framerate = [0/1, 100/1], "
- "pixel-aspect-ratio = (fraction) 1/1"
- "; "
- "video/x-raw, "
- "format =" DEVICE_YUV_FOURCC ", "
- "width = (int) 352, "
- "height = (int) 288, "
- "framerate = [0/1, 100/1], "
- "pixel-aspect-ratio = (fraction) 12/11"
- ";"
- )
-);
-
-typedef enum _QueueState {
- NO_FRAMES = 1,
- HAS_FRAME_OR_STOP_REQUEST,
-} QueueState;
-
-G_DEFINE_TYPE (GstQTKitVideoSrc, gst_qtkit_video_src, GST_TYPE_PUSH_SRC);
-
-@interface GstQTKitVideoSrcImpl : NSObject {
- GstElement *element;
- GstBaseSrc *baseSrc;
- GstPushSrc *pushSrc;
-
- int deviceIndex;
-
- QTCaptureSession *session;
- QTCaptureDeviceInput *input;
- QTCaptureDecompressedVideoOutput *output;
- QTCaptureDevice *device;
-
- NSConditionLock *queueLock;
- NSMutableArray *queue;
- BOOL stopRequest;
-
- gint width, height;
- gint fps_n, fps_d;
- GstClockTime duration;
- guint64 offset;
- GstGLContextHelper *ctxh;
- GstVideoTextureCache *textureCache;
- GstVideoInfo outputInfo;
-}
-
-- (id)init;
-- (id)initWithSrc:(GstPushSrc *)src;
-
-@property int deviceIndex;
-
-- (BOOL)openDevice;
-- (void)closeDevice;
-- (BOOL)setCaps:(GstCaps *)caps;
-- (BOOL)start;
-- (BOOL)stop;
-- (BOOL)unlock;
-- (BOOL)unlockStop;
-- (GstCaps *)fixate:(GstCaps *)caps;
-- (BOOL)query:(GstQuery *)query;
-- (GstStateChangeReturn)changeState:(GstStateChange)transition;
-- (GstFlowReturn)create:(GstBuffer **)buf;
-- (void)timestampBuffer:(GstBuffer *)buf;
-- (void)captureOutput:(QTCaptureOutput *)captureOutput
- didOutputVideoFrame:(CVImageBufferRef)videoFrame
- withSampleBuffer:(QTSampleBuffer *)sampleBuffer
- fromConnection:(QTCaptureConnection *)connection;
-
-@end
-
-@implementation GstQTKitVideoSrcImpl
-
-- (id)init
-{
- return [self initWithSrc:NULL];
-}
-
-- (id)initWithSrc:(GstPushSrc *)src
-{
- if ((self = [super init])) {
- element = GST_ELEMENT_CAST (src);
- baseSrc = GST_BASE_SRC_CAST (src);
- pushSrc = src;
-
- deviceIndex = DEFAULT_DEVICE_INDEX;
-
- device = nil;
-
- gst_base_src_set_live (baseSrc, TRUE);
- gst_base_src_set_format (baseSrc, GST_FORMAT_TIME);
-
- self->ctxh = NULL;
- textureCache = NULL;
- gst_video_info_init (&outputInfo);
- }
-
- return self;
-}
-
-@synthesize deviceIndex;
-
-- (BOOL)openDevice
-{
- NSString *mediaType = QTMediaTypeVideo;
- NSError *error = nil;
-
- if (deviceIndex == -1) {
- device = [QTCaptureDevice defaultInputDeviceWithMediaType:mediaType];
- if (device == nil) {
- GST_ELEMENT_ERROR (element, RESOURCE, NOT_FOUND,
- ("No video capture devices found"), (NULL));
- goto openFailed;
- }
- } else {
- NSArray *devices = [QTCaptureDevice inputDevicesWithMediaType:mediaType];
- if (deviceIndex >= [devices count]) {
- GST_ELEMENT_ERROR (element, RESOURCE, NOT_FOUND,
- ("Invalid video capture device index"), (NULL));
- goto openFailed;
- }
- device = [devices objectAtIndex:deviceIndex];
- }
- [device retain];
-
- GST_INFO ("Opening '%s'", [[device localizedDisplayName] UTF8String]);
-
- if (![device open:&error]) {
- GST_ELEMENT_ERROR (element, RESOURCE, NOT_FOUND,
- ("Failed to open device '%s'",
- [[device localizedDisplayName] UTF8String]), (NULL));
- goto openFailed;
- }
-
- return YES;
-
- /* ERRORS */
-openFailed:
- {
- [device release];
- device = nil;
-
- return NO;
- }
-}
-
-- (void)closeDevice
-{
- g_assert (![session isRunning]);
-
- [session release];
- session = nil;
-
- [input release];
- input = nil;
-
- [output release];
- output = nil;
-
- [device release];
- device = nil;
-}
-
-- (BOOL)setCaps:(GstCaps *)caps
-{
- GstStructure *s;
- NSDictionary *outputAttrs;
- BOOL success;
- NSTimeInterval interval;
-
- g_assert (device != nil);
-
- GST_INFO ("setting up session");
-
- s = gst_caps_get_structure (caps, 0);
- gst_structure_get_int (s, "width", &width);
- gst_structure_get_int (s, "height", &height);
- if (!gst_structure_get_fraction (s, "framerate", &fps_n, &fps_d)) {
- fps_n = DEVICE_FPS_N;
- fps_d = DEVICE_FPS_D;
- }
-
- GST_INFO ("got caps %dx%d %d/%d", width, height, fps_n, fps_d);
- input = [[QTCaptureDeviceInput alloc] initWithDevice:device];
-
- output = [[QTCaptureDecompressedVideoOutput alloc] init];
-#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
- [output setAutomaticallyDropsLateVideoFrames:YES];
-#endif
- outputAttrs = [NSDictionary dictionaryWithObjectsAndKeys:
- [NSNumber numberWithUnsignedInt:k2vuyPixelFormat],
- (id)kCVPixelBufferPixelFormatTypeKey,
- [NSNumber numberWithUnsignedInt:width],
- (id)kCVPixelBufferWidthKey,
- [NSNumber numberWithUnsignedInt:height],
- (id)kCVPixelBufferHeightKey,
- nil
- ];
- [output setPixelBufferAttributes:outputAttrs];
-
- if (fps_n != 0) {
- duration = gst_util_uint64_scale (GST_SECOND, fps_d, fps_n);
- gst_util_fraction_to_double (fps_d, fps_n, (gdouble *) &interval);
- } else {
- duration = GST_CLOCK_TIME_NONE;
- interval = 0;
- }
-
- [output setMinimumVideoFrameInterval:interval];
-
- session = [[QTCaptureSession alloc] init];
- success = [session addInput:input
- error:nil];
- g_assert (success);
- success = [session addOutput:output
- error:nil];
- g_assert (success);
-
- gst_gl_context_helper_ensure_context (ctxh);
- GST_INFO_OBJECT (element, "pushing textures, context %p old context %p",
- ctxh->context, textureCache ? textureCache->ctx : NULL);
- if (textureCache && textureCache->ctx != ctxh->context) {
- gst_video_texture_cache_free (textureCache);
- textureCache = NULL;
- }
- textureCache = gst_video_texture_cache_new (ctxh->context);
- gst_video_texture_cache_set_format (textureCache, GST_VIDEO_FORMAT_UYVY, caps);
- gst_video_info_set_format (&outputInfo, GST_VIDEO_FORMAT_UYVY, width, height);
-
- [output setDelegate:self];
- [session startRunning];
-
- return YES;
-}
-
-- (BOOL)start
-{
- NSRunLoop *mainRunLoop;
-
- queueLock = [[NSConditionLock alloc] initWithCondition:NO_FRAMES];
- queue = [[NSMutableArray alloc] initWithCapacity:FRAME_QUEUE_SIZE];
- stopRequest = NO;
-
- offset = 0;
- width = height = 0;
- fps_n = 0;
- fps_d = 1;
- duration = GST_CLOCK_TIME_NONE;
- ctxh = gst_gl_context_helper_new (element);
-
- /* this will trigger negotiation and open the device in setCaps */
- gst_base_src_start_complete (baseSrc, GST_FLOW_OK);
-
- mainRunLoop = [NSRunLoop mainRunLoop];
- if ([mainRunLoop currentMode] == nil) {
- /* QTCaptureSession::addInput and QTCaptureSession::addOutput, called from
- * setCaps, call NSObject::performSelectorOnMainThread internally. If the
- * mainRunLoop is not running we need to run it for a while for those
- * methods to complete.
- */
- GST_INFO ("mainRunLoop not running");
- [[NSRunLoop mainRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:1]];
- }
-
- return YES;
-}
-
-- (BOOL)stop
-{
- [session stopRunning];
- [output setDelegate:nil];
-
- [queueLock release];
- queueLock = nil;
- [queue release];
- queue = nil;
-
- gst_gl_context_helper_free (ctxh);
- ctxh = NULL;
- if (textureCache)
- gst_video_texture_cache_free (textureCache);
- textureCache = NULL;
-
- return YES;
-}
-
-- (BOOL)query:(GstQuery *)query
-{
- BOOL result = NO;
-
- if (GST_QUERY_TYPE (query) == GST_QUERY_LATENCY) {
- if (device != nil) {
- GstClockTime min_latency, max_latency;
-
- min_latency = max_latency = duration; /* for now */
- result = YES;
-
- GST_DEBUG_OBJECT (element, "reporting latency of min %" GST_TIME_FORMAT
- " max %" GST_TIME_FORMAT,
- GST_TIME_ARGS (min_latency), GST_TIME_ARGS (max_latency));
- gst_query_set_latency (query, TRUE, min_latency, max_latency);
- }
- } else {
- result = GST_BASE_SRC_CLASS (gst_qtkit_video_src_parent_class)->query (baseSrc, query);
- }
-
- return result;
-}
-
-- (BOOL)unlock
-{
- [queueLock lock];
- stopRequest = YES;
- [queueLock unlockWithCondition:HAS_FRAME_OR_STOP_REQUEST];
-
- return YES;
-}
-
-- (BOOL)unlockStop
-{
- [queueLock lock];
- stopRequest = NO;
- [queueLock unlockWithCondition:NO_FRAMES];
-
- return YES;
-}
-
-- (GstCaps *)fixate:(GstCaps *)caps
-{
- GstStructure *structure;
-
- caps = gst_caps_truncate (caps);
- structure = gst_caps_get_structure (caps, 0);
- if (gst_structure_has_field (structure, "framerate")) {
- gst_structure_fixate_field_nearest_fraction (structure, "framerate",
- DEVICE_FPS_N, DEVICE_FPS_D);
- }
-
- return caps;
-}
-
-- (GstStateChangeReturn)changeState:(GstStateChange)transition
-{
- GstStateChangeReturn ret;
-
- if (transition == GST_STATE_CHANGE_NULL_TO_READY) {
- if (![self openDevice])
- return GST_STATE_CHANGE_FAILURE;
- }
-
- ret = GST_ELEMENT_CLASS (gst_qtkit_video_src_parent_class)->change_state (element, transition);
-
- if (transition == GST_STATE_CHANGE_READY_TO_NULL)
- [self closeDevice];
-
- return ret;
-}
-
-- (void)captureOutput:(QTCaptureOutput *)captureOutput
- didOutputVideoFrame:(CVImageBufferRef)videoFrame
- withSampleBuffer:(QTSampleBuffer *)sampleBuffer
- fromConnection:(QTCaptureConnection *)connection
-{
- [queueLock lock];
-
- if (stopRequest) {
- [queueLock unlock];
- return;
- }
-
- GST_INFO ("got new frame");
-
- if ([queue count] == FRAME_QUEUE_SIZE)
- [queue removeLastObject];
-
- [queue insertObject:(id)videoFrame
- atIndex:0];
-
- [queueLock unlockWithCondition:HAS_FRAME_OR_STOP_REQUEST];
-}
-
-- (GstFlowReturn)create:(GstBuffer **)buf
-{
- CVPixelBufferRef frame;
-
- [queueLock lockWhenCondition:HAS_FRAME_OR_STOP_REQUEST];
- if (stopRequest) {
- [queueLock unlock];
- return GST_FLOW_FLUSHING;
- }
-
- frame = (CVPixelBufferRef) [queue lastObject];
- CVBufferRetain (frame);
- [queue removeLastObject];
- [queueLock unlockWithCondition:
- ([queue count] == 0) ? NO_FRAMES : HAS_FRAME_OR_STOP_REQUEST];
-
- *buf = gst_core_video_buffer_new ((CVBufferRef)frame, &outputInfo, textureCache);
- CVBufferRelease (frame);
-
- [self timestampBuffer:*buf];
-
- return GST_FLOW_OK;
-}
-
-- (void)timestampBuffer:(GstBuffer *)buf
-{
- GstClock *clock;
- GstClockTime timestamp;
-
- GST_OBJECT_LOCK (element);
- clock = GST_ELEMENT_CLOCK (element);
- if (clock != NULL) {
- gst_object_ref (clock);
- timestamp = element->base_time;
- } else {
- timestamp = GST_CLOCK_TIME_NONE;
- }
- GST_OBJECT_UNLOCK (element);
-
- if (clock != NULL) {
- timestamp = gst_clock_get_time (clock) - timestamp;
- if (timestamp > duration)
- timestamp -= duration;
- else
- timestamp = 0;
-
- gst_object_unref (clock);
- clock = NULL;
- }
-
- GST_BUFFER_OFFSET (buf) = offset++;
- GST_BUFFER_OFFSET_END (buf) = GST_BUFFER_OFFSET (buf) + 1;
- GST_BUFFER_TIMESTAMP (buf) = timestamp;
- GST_BUFFER_DURATION (buf) = duration;
-}
-
-@end
-
-/*
- * Glue code
- */
-
-enum
-{
- PROP_0,
- PROP_DEVICE_INDEX
-};
-
-static void gst_qtkit_video_src_finalize (GObject * obj);
-static void gst_qtkit_video_src_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
-static void gst_qtkit_video_src_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
-static GstStateChangeReturn gst_qtkit_video_src_change_state (
- GstElement * element, GstStateChange transition);
-static gboolean gst_qtkit_video_src_set_caps (GstBaseSrc * basesrc,
- GstCaps * caps);
-static gboolean gst_qtkit_video_src_start (GstBaseSrc * basesrc);
-static gboolean gst_qtkit_video_src_stop (GstBaseSrc * basesrc);
-static gboolean gst_qtkit_video_src_query (GstBaseSrc * basesrc,
- GstQuery * query);
-static gboolean gst_qtkit_video_src_unlock (GstBaseSrc * basesrc);
-static gboolean gst_qtkit_video_src_unlock_stop (GstBaseSrc * basesrc);
-static GstFlowReturn gst_qtkit_video_src_create (GstPushSrc * pushsrc,
- GstBuffer ** buf);
-static GstCaps * gst_qtkit_video_src_fixate (GstBaseSrc * basesrc, GstCaps * caps);
-
-static void
-gst_qtkit_video_src_class_init (GstQTKitVideoSrcClass * klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
- GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
- GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
-
- gst_element_class_set_metadata (gstelement_class,
- "Video Source (QTKit)", "Source/Video",
- "Reads frames from a Mac OS X QTKit device",
- "Ole André Vadla Ravnås <oleavr@soundrop.com>");
-
- gst_element_class_add_static_pad_template (gstelement_class, &src_template);
-
- gobject_class->finalize = gst_qtkit_video_src_finalize;
- gobject_class->get_property = gst_qtkit_video_src_get_property;
- gobject_class->set_property = gst_qtkit_video_src_set_property;
-
- gstelement_class->change_state = gst_qtkit_video_src_change_state;
-
- gstbasesrc_class->set_caps = gst_qtkit_video_src_set_caps;
- gstbasesrc_class->start = gst_qtkit_video_src_start;
- gstbasesrc_class->stop = gst_qtkit_video_src_stop;
- gstbasesrc_class->query = gst_qtkit_video_src_query;
- gstbasesrc_class->unlock = gst_qtkit_video_src_unlock;
- gstbasesrc_class->unlock_stop = gst_qtkit_video_src_unlock_stop;
- gstbasesrc_class->fixate = gst_qtkit_video_src_fixate;
-
- gstpushsrc_class->create = gst_qtkit_video_src_create;
-
- g_object_class_install_property (gobject_class, PROP_DEVICE_INDEX,
- g_param_spec_int ("device-index", "Device Index",
- "The zero-based device index",
- -1, G_MAXINT, DEFAULT_DEVICE_INDEX,
- G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
- GST_DEBUG_CATEGORY_INIT (gst_qtkit_video_src_debug, "qtkitvideosrc",
- 0, "Mac OS X QTKit video source");
-}
-
-#define OBJC_CALLOUT_BEGIN() \
- NSAutoreleasePool *pool; \
- \
- pool = [[NSAutoreleasePool alloc] init]
-#define OBJC_CALLOUT_END() \
- [pool release]
-
-static void
-gst_qtkit_video_src_init (GstQTKitVideoSrc * src)
-{
- OBJC_CALLOUT_BEGIN ();
- src->impl = [[GstQTKitVideoSrcImpl alloc] initWithSrc:GST_PUSH_SRC (src)];
- OBJC_CALLOUT_END ();
-
- /* pretend to be async so we can spin the mainRunLoop from the main thread if
- * needed (see ::start) */
- gst_base_src_set_async (GST_BASE_SRC (src), TRUE);
-}
-
-static void
-gst_qtkit_video_src_finalize (GObject * obj)
-{
- OBJC_CALLOUT_BEGIN ();
- [GST_QTKIT_VIDEO_SRC_IMPL (obj) release];
- OBJC_CALLOUT_END ();
-
- G_OBJECT_CLASS (gst_qtkit_video_src_parent_class)->finalize (obj);
-}
-
-static void
-gst_qtkit_video_src_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
-{
- GstQTKitVideoSrcImpl *impl = GST_QTKIT_VIDEO_SRC_IMPL (object);
-
- switch (prop_id) {
- case PROP_DEVICE_INDEX:
- g_value_set_int (value, impl.deviceIndex);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gst_qtkit_video_src_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
-{
- GstQTKitVideoSrcImpl *impl = GST_QTKIT_VIDEO_SRC_IMPL (object);
-
- switch (prop_id) {
- case PROP_DEVICE_INDEX:
- impl.deviceIndex = g_value_get_int (value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static GstStateChangeReturn
-gst_qtkit_video_src_change_state (GstElement * element, GstStateChange transition)
-{
- GstStateChangeReturn ret;
-
- OBJC_CALLOUT_BEGIN ();
- ret = [GST_QTKIT_VIDEO_SRC_IMPL (element) changeState: transition];
- OBJC_CALLOUT_END ();
-
- return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_set_caps (GstBaseSrc * basesrc, GstCaps * caps)
-{
- gboolean ret;
-
- OBJC_CALLOUT_BEGIN ();
- ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) setCaps:caps];
- OBJC_CALLOUT_END ();
-
- return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_start (GstBaseSrc * basesrc)
-{
- gboolean ret;
-
- OBJC_CALLOUT_BEGIN ();
- ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) start];
- OBJC_CALLOUT_END ();
-
- return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_stop (GstBaseSrc * basesrc)
-{
- gboolean ret;
-
- OBJC_CALLOUT_BEGIN ();
- ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) stop];
- OBJC_CALLOUT_END ();
-
- return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_query (GstBaseSrc * basesrc, GstQuery * query)
-{
- gboolean ret;
-
- OBJC_CALLOUT_BEGIN ();
- ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) query:query];
- OBJC_CALLOUT_END ();
-
- return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_unlock (GstBaseSrc * basesrc)
-{
- gboolean ret;
-
- OBJC_CALLOUT_BEGIN ();
- ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) unlock];
- OBJC_CALLOUT_END ();
-
- return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_unlock_stop (GstBaseSrc * basesrc)
-{
- gboolean ret;
-
- OBJC_CALLOUT_BEGIN ();
- ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) unlockStop];
- OBJC_CALLOUT_END ();
-
- return ret;
-}
-
-static GstFlowReturn
-gst_qtkit_video_src_create (GstPushSrc * pushsrc, GstBuffer ** buf)
-{
- GstFlowReturn ret;
-
- OBJC_CALLOUT_BEGIN ();
- ret = [GST_QTKIT_VIDEO_SRC_IMPL (pushsrc) create: buf];
- OBJC_CALLOUT_END ();
-
- return ret;
-}
-
-static GstCaps *
-gst_qtkit_video_src_fixate (GstBaseSrc * basesrc, GstCaps * caps)
-{
- GstCaps *ret;
-
- OBJC_CALLOUT_BEGIN ();
- ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) fixate: caps];
- OBJC_CALLOUT_END ();
-
- return ret;
-}
projects / platform / upstream / gst-plugins-bad.git / commitdiff