mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-01-23 23:58:17 +00:00
avfvideosrc: Negotiate format, also support more resolutions
This should enable supprt for old and new iPhones with the same code.
This commit is contained in:
Olivier Crête
parent
701fd9b336
commit
9a328a8f71
1 changed files with 101 additions and 18 deletions
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@ -27,8 +27,6 @@
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#define DEFAULT_DEVICE_INDEX -1
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#define DEFAULT_DO_STATS FALSE
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#define DEVICE_VIDEO_FORMAT GST_VIDEO_FORMAT_YUY2
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#define DEVICE_YUV_FOURCC "YUY2"
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#define DEVICE_FPS_N 25
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#define DEVICE_FPS_D 1
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@ -37,11 +35,36 @@
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GST_DEBUG_CATEGORY (gst_avf_video_src_debug);
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#define GST_CAT_DEFAULT gst_avf_video_src_debug
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#define VIDEO_CAPS_YUV(width, height) "video/x-raw-yuv, " \
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"format = (fourcc) { NV12, UYVY, YUY2 }, " \
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"framerate = " GST_VIDEO_FPS_RANGE ", " \
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"width = (int) " G_STRINGIFY (width) ", height = (int) " G_STRINGIFY (height)
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#define VIDEO_CAPS_BGRA(width, height) "video/x-raw-rgb, " \
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"bpp = (int) 32, " \
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"depth = (int) 32, " \
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"endianness = (int) BIG_ENDIAN, " \
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"red_mask = (int) " GST_VIDEO_BYTE3_MASK_32 ", " \
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"green_mask = (int) " GST_VIDEO_BYTE2_MASK_32 ", " \
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"blue_mask = (int) " GST_VIDEO_BYTE1_MASK_32 ", " \
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"alpha_mask = (int) " GST_VIDEO_BYTE4_MASK_32 ", " \
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"width = (int) " G_STRINGIFY (width) ", height = (int) " G_STRINGIFY (height)
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static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (
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GST_VIDEO_CAPS_YUV (DEVICE_YUV_FOURCC))
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GST_STATIC_CAPS (VIDEO_CAPS_YUV (192, 144) ";"
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VIDEO_CAPS_YUV (480, 360) ";"
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VIDEO_CAPS_YUV (352, 288) ";"
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VIDEO_CAPS_YUV (640, 480) ";"
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VIDEO_CAPS_YUV (1280, 720) ";"
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VIDEO_CAPS_YUV (1920, 1280) ";"
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VIDEO_CAPS_BGRA (192, 144) ";"
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VIDEO_CAPS_BGRA (480, 360) ";"
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VIDEO_CAPS_BGRA (352, 288) ";"
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VIDEO_CAPS_BGRA (640, 480) ";"
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VIDEO_CAPS_BGRA (1280, 720) ";"
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VIDEO_CAPS_BGRA (1920, 1280))
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);
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typedef enum _QueueState {
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@ -71,6 +94,7 @@ static GstPushSrcClass * parent_class;
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NSMutableArray *bufQueue;
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BOOL stopRequest;
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GstVideoFormat format;
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gint width, height;
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GstClockTime duration;
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guint64 offset;
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@ -249,43 +273,74 @@ didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
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bufferFactory = nil;
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}
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#define GST_AVF_CAPS_NEW(w, h) \
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(gst_video_format_new_caps (DEVICE_VIDEO_FORMAT, w, h, \
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#define GST_AVF_CAPS_NEW(format, w, h) \
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(gst_video_format_new_caps (format, w, h, \
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DEVICE_FPS_N, DEVICE_FPS_D, 1, 1))
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- (GstCaps *)getCaps
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{
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GstCaps *result;
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NSArray *formats;
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if (session == nil)
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return NULL; /* BaseSrc will return template caps */
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result = GST_AVF_CAPS_NEW (192, 144);
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result = gst_caps_new_empty ();
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formats = output.availableVideoCVPixelFormatTypes;
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for (id object in formats) {
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NSNumber *nsformat = object;
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GstVideoFormat gstformat = GST_VIDEO_FORMAT_UNKNOWN;
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switch ([nsformat integerValue]) {
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case kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange: /* 420v */
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gstformat = GST_VIDEO_FORMAT_NV12;
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break;
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case kCVPixelFormatType_422YpCbCr8: /* 2vuy */
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gstformat = GST_VIDEO_FORMAT_UYVY;
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break;
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case kCVPixelFormatType_32BGRA: /* BGRA */
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gstformat = GST_VIDEO_FORMAT_BGRA;
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break;
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case kCVPixelFormatType_422YpCbCr8_yuvs: /* yuvs */
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gstformat = GST_VIDEO_FORMAT_YUY2;
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break;
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default:
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continue;
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}
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gst_caps_append (result, GST_AVF_CAPS_NEW (gstformat, 192, 144));
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if ([session canSetSessionPreset:AVCaptureSessionPreset352x288])
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gst_caps_append (result, GST_AVF_CAPS_NEW (gstformat, 352, 288));
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if ([session canSetSessionPreset:AVCaptureSessionPresetMedium])
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gst_caps_merge (result, GST_AVF_CAPS_NEW (480, 360));
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gst_caps_append (result, GST_AVF_CAPS_NEW (gstformat, 480, 360));
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if ([session canSetSessionPreset:AVCaptureSessionPreset640x480])
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gst_caps_merge (result, GST_AVF_CAPS_NEW (640, 480));
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gst_caps_append (result, GST_AVF_CAPS_NEW (gstformat, 640, 480));
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if ([session canSetSessionPreset:AVCaptureSessionPreset1280x720])
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gst_caps_merge (result, GST_AVF_CAPS_NEW (1280, 720));
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gst_caps_append (result, GST_AVF_CAPS_NEW (gstformat, 1280, 720));
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if ([session canSetSessionPreset:AVCaptureSessionPreset1920x1080])
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gst_caps_append (result, GST_AVF_CAPS_NEW (gstformat, 1920, 1080));
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}
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return result;
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}
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- (BOOL)setCaps:(GstCaps *)caps
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{
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GstStructure *s;
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s = gst_caps_get_structure (caps, 0);
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gst_structure_get_int (s, "width", &width);
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gst_structure_get_int (s, "height", &height);
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gst_video_format_parse_caps (caps, &format, &width, &height);
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dispatch_async (mainQueue, ^{
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int newformat;
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g_assert (![session isRunning]);
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switch (width) {
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case 192:
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session.sessionPreset = AVCaptureSessionPresetLow;
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break;
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case 352:
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session.sessionPreset = AVCaptureSessionPreset352x288;
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break;
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case 480:
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session.sessionPreset = AVCaptureSessionPresetMedium;
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break;
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@ -295,10 +350,38 @@ didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
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case 1280:
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session.sessionPreset = AVCaptureSessionPreset1280x720;
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break;
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case 1920:
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session.sessionPreset = AVCaptureSessionPreset1920x1080;
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break;
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default:
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g_assert_not_reached ();
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}
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switch (format) {
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case GST_VIDEO_FORMAT_NV12:
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newformat = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
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break;
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case GST_VIDEO_FORMAT_UYVY:
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newformat = kCVPixelFormatType_422YpCbCr8;
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break;
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case GST_VIDEO_FORMAT_YUY2:
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newformat = kCVPixelFormatType_422YpCbCr8_yuvs;
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break;
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case GST_VIDEO_FORMAT_BGRA:
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newformat = kCVPixelFormatType_32BGRA;
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break;
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default:
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g_assert_not_reached ();
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}
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GST_DEBUG_OBJECT(element,
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"Width: %d Height: %d Format: %" GST_FOURCC_FORMAT,
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width, height,
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GST_FOURCC_ARGS (gst_video_format_to_fourc(format)));
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output.videoSettings = [NSDictionary dictionaryWithObject:[NSNumber numberWithInt:newformat] forKey:(NSString*)kCVPixelBu
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[session startRunning];
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});
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[self waitForMainQueueToDrain];
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