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vtenc: Properly handle keyframes

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Especially set the SYNC_POINT flag on keyframes.
This commit is contained in:
Sebastian Dröge 2014-09-18 13:11:05 +03:00
parent 44874d35b5
commit 61c40523df
2 changed files with 15 additions and 15 deletions
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29
sys/applemedia/vtenc.c
View file

@ -663,16 +663,18 @@ gst_vtenc_encode_frame (GstVTEnc * self, GstVideoCodecFrame * frame)
OSStatus vt_status;
GstFlowReturn ret = GST_FLOW_OK;
guint i;
gboolean forced_keyframe = FALSE;
if (GST_VIDEO_CODEC_FRAME_IS_FORCE_KEYFRAME (frame)) {
GST_OBJECT_LOCK (self);
if (self->options != NULL) {
GST_INFO_OBJECT (self, "received PLI, will force intra");
GST_INFO_OBJECT (self, "received force-keyframe-event, will force intra");
CFDictionaryAddValue (self->options,
kVTEncodeFrameOptionKey_ForceKeyFrame, kCFBooleanTrue);
forced_keyframe = TRUE;
} else {
GST_INFO_OBJECT (self,
"received PLI but encode not yet started, ignoring");
"received force-keyframe-event but encode not yet started, ignoring");
}
GST_OBJECT_UNLOCK (self);
}
@ -747,15 +749,16 @@ gst_vtenc_encode_frame (GstVTEnc * self, GstVideoCodecFrame * frame)
GST_OBJECT_LOCK (self);
self->expect_keyframe = CFDictionaryContainsKey (self->options,
kVTEncodeFrameOptionKey_ForceKeyFrame);
if (self->expect_keyframe)
gst_vtenc_clear_cached_caps_downstream (self);
vt_status = VTCompressionSessionEncodeFrame (self->session,
pbuf, ts, duration, self->options,
GINT_TO_POINTER (frame->system_frame_number), NULL);
/* Only force one keyframe */
if (forced_keyframe) {
CFDictionaryRemoveValue (self->options,
kVTEncodeFrameOptionKey_ForceKeyFrame);
}
if (vt_status != noErr) {
GST_WARNING_OBJECT (self, "VTCompressionSessionEncodeFrame returned %d",
(int) vt_status);
@ -816,18 +819,16 @@ gst_vtenc_enqueue_buffer (void *outputCallbackRefCon,
goto beach;
is_keyframe = gst_vtenc_buffer_is_keyframe (self, sampleBuffer);
if (self->expect_keyframe) {
if (!is_keyframe)
goto beach;
CFDictionaryRemoveValue (self->options,
kVTEncodeFrameOptionKey_ForceKeyFrame);
}
self->expect_keyframe = FALSE;
frame =
gst_video_encoder_get_frame (GST_VIDEO_ENCODER_CAST (self),
GPOINTER_TO_INT (sourceFrameRefCon));
if (is_keyframe) {
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
gst_vtenc_clear_cached_caps_downstream (self);
}
/* We are dealing with block buffers here, so we don't need
* to enable the use of the video meta API on the core media buffer */
frame->output_buffer = gst_core_media_buffer_new (sampleBuffer, FALSE);

1
sys/applemedia/vtenc.h
View file

@ -72,7 +72,6 @@ struct _GstVTEnc
CFMutableDictionaryRef options;
GAsyncQueue * cur_outframes;
gboolean expect_keyframe;
};
void gst_vtenc_register_elements (GstPlugin * plugin);