static GstFlowReturn
gst_base_video_encoder_chain (GstPad * pad, GstBuffer * buf)
{
GstBaseVideoEncoder *base_video_encoder;
GstBaseVideoEncoderClass *klass;
GstVideoFrame *frame;
if (!gst_pad_is_negotiated (pad)) {
return GST_FLOW_NOT_NEGOTIATED;
}
base_video_encoder = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
klass = GST_BASE_VIDEO_ENCODER_GET_CLASS (base_video_encoder);
if (base_video_encoder->a.at_eos) {
return GST_FLOW_UNEXPECTED;
}
if (base_video_encoder->sink_clipping) {
gint64 start = GST_BUFFER_TIMESTAMP (buf);
gint64 stop = start + GST_BUFFER_DURATION (buf);
gint64 clip_start;
gint64 clip_stop;
if (!gst_segment_clip (&GST_BASE_VIDEO_CODEC (base_video_encoder)->segment,
GST_FORMAT_TIME, start, stop, &clip_start, &clip_stop)) {
GST_DEBUG ("clipping to segment dropped frame");
goto done;
}
}
frame =
gst_base_video_codec_new_frame (GST_BASE_VIDEO_CODEC
(base_video_encoder));
frame->sink_buffer = buf;
frame->presentation_timestamp = GST_BUFFER_TIMESTAMP (buf);
frame->presentation_duration = GST_BUFFER_DURATION (buf);
frame->presentation_frame_number =
base_video_encoder->presentation_frame_number;
base_video_encoder->presentation_frame_number++;
GST_BASE_VIDEO_CODEC (base_video_encoder)->frames =
g_list_append (GST_BASE_VIDEO_CODEC (base_video_encoder)->frames, frame);
klass->handle_frame (base_video_encoder, frame);
done:
g_object_unref (base_video_encoder);
return GST_FLOW_OK;
}
static gboolean
gst_base_video_encoder_sink_event (GstPad * pad, GstEvent * event)
{
GstBaseVideoEncoder *enc;
GstBaseVideoEncoderClass *klass;
gboolean handled = FALSE;
gboolean ret = TRUE;
enc = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
klass = GST_BASE_VIDEO_ENCODER_GET_CLASS (enc);
GST_DEBUG_OBJECT (enc, "received event %d, %s", GST_EVENT_TYPE (event),
GST_EVENT_TYPE_NAME (event));
if (klass->event)
handled = klass->event (enc, event);
if (!handled)
handled = gst_base_video_encoder_sink_eventfunc (enc, event);
if (!handled) {
/* Forward non-serialized events and EOS/FLUSH_STOP immediately.
* For EOS this is required because no buffer or serialized event
* will come after EOS and nothing could trigger another
* _finish_frame() call. *
* If the subclass handles sending of EOS manually it can return
* _DROPPED from ::finish() and all other subclasses should have
* decoded/flushed all remaining data before this
*
* For FLUSH_STOP this is required because it is expected
* to be forwarded immediately and no buffers are queued anyway.
*/
if (!GST_EVENT_IS_SERIALIZED (event)
|| GST_EVENT_TYPE (event) == GST_EVENT_EOS
|| GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP) {
ret = gst_pad_push_event (enc->base_video_codec.srcpad, event);
} else {
GST_BASE_VIDEO_CODEC_STREAM_LOCK (enc);
enc->current_frame_events =
g_list_prepend (enc->current_frame_events, event);
GST_BASE_VIDEO_CODEC_STREAM_UNLOCK (enc);
}
}
GST_DEBUG_OBJECT (enc, "event handled");
gst_object_unref (enc);
return ret;
}
static GstFlowReturn
gst_base_video_encoder_chain (GstPad * pad, GstBuffer * buf)
{
GstBaseVideoEncoder *base_video_encoder;
GstBaseVideoEncoderClass *klass;
GstVideoFrame *frame;
GstFlowReturn ret = GST_FLOW_OK;
base_video_encoder = GST_BASE_VIDEO_ENCODER (gst_pad_get_parent (pad));
klass = GST_BASE_VIDEO_ENCODER_GET_CLASS (base_video_encoder);
g_return_val_if_fail (klass->handle_frame != NULL, GST_FLOW_ERROR);
GST_BASE_VIDEO_CODEC_STREAM_LOCK (base_video_encoder);
if (!GST_PAD_CAPS (pad)) {
ret = GST_FLOW_NOT_NEGOTIATED;
goto done;
}
GST_LOG_OBJECT (base_video_encoder,
"received buffer of size %d with ts %" GST_TIME_FORMAT
", duration %" GST_TIME_FORMAT, GST_BUFFER_SIZE (buf),
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)));
if (base_video_encoder->a.at_eos) {
ret = GST_FLOW_UNEXPECTED;
goto done;
}
if (base_video_encoder->sink_clipping) {
gint64 start = GST_BUFFER_TIMESTAMP (buf);
gint64 stop = start + GST_BUFFER_DURATION (buf);
gint64 clip_start;
gint64 clip_stop;
if (!gst_segment_clip (&GST_BASE_VIDEO_CODEC (base_video_encoder)->segment,
GST_FORMAT_TIME, start, stop, &clip_start, &clip_stop)) {
GST_DEBUG_OBJECT (base_video_encoder,
"clipping to segment dropped frame");
goto done;
}
}
if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT))) {
GST_LOG_OBJECT (base_video_encoder, "marked discont");
GST_BASE_VIDEO_CODEC (base_video_encoder)->discont = TRUE;
}
frame =
gst_base_video_codec_new_frame (GST_BASE_VIDEO_CODEC
(base_video_encoder));
frame->events = base_video_encoder->current_frame_events;
base_video_encoder->current_frame_events = NULL;
frame->sink_buffer = buf;
frame->presentation_timestamp = GST_BUFFER_TIMESTAMP (buf);
frame->presentation_duration = GST_BUFFER_DURATION (buf);
frame->presentation_frame_number =
base_video_encoder->presentation_frame_number;
base_video_encoder->presentation_frame_number++;
frame->force_keyframe = base_video_encoder->force_keyframe;
base_video_encoder->force_keyframe = FALSE;
GST_BASE_VIDEO_CODEC (base_video_encoder)->frames =
g_list_append (GST_BASE_VIDEO_CODEC (base_video_encoder)->frames, frame);
/* new data, more finish needed */
base_video_encoder->drained = FALSE;
GST_LOG_OBJECT (base_video_encoder, "passing frame pfn %d to subclass",
frame->presentation_frame_number);
ret = klass->handle_frame (base_video_encoder, frame);
done:
GST_BASE_VIDEO_CODEC_STREAM_UNLOCK (base_video_encoder);
g_object_unref (base_video_encoder);
return ret;
}
