static GstFlowReturn
gst_y4m_encode_handle_frame (GstVideoEncoder * encoder,
GstVideoCodecFrame * frame)
{
GstY4mEncode *filter = GST_Y4M_ENCODE (encoder);
GstClockTime timestamp;
/* check we got some decent info from caps */
if (GST_VIDEO_INFO_FORMAT (&filter->info) == GST_VIDEO_FORMAT_UNKNOWN)
goto not_negotiated;
timestamp = GST_BUFFER_TIMESTAMP (frame->input_buffer);
if (G_UNLIKELY (!filter->header)) {
gboolean tff = FALSE;
if (GST_VIDEO_INFO_IS_INTERLACED (&filter->info)) {
tff =
GST_BUFFER_FLAG_IS_SET (frame->input_buffer,
GST_VIDEO_BUFFER_FLAG_TFF);
}
frame->output_buffer = gst_y4m_encode_get_stream_header (filter, tff);
filter->header = TRUE;
frame->output_buffer =
gst_buffer_append (frame->output_buffer,
gst_y4m_encode_get_frame_header (filter));
} else {
frame->output_buffer = gst_y4m_encode_get_frame_header (filter);
}
frame->output_buffer =
gst_buffer_append (frame->output_buffer,
gst_buffer_copy (frame->input_buffer));
/* decorate */
frame->output_buffer = gst_buffer_make_writable (frame->output_buffer);
GST_BUFFER_TIMESTAMP (frame->output_buffer) = timestamp;
return gst_video_encoder_finish_frame (encoder, frame);
not_negotiated:
{
GST_ELEMENT_ERROR (filter, CORE, NEGOTIATION, (NULL),
("format wasn't negotiated"));
return GST_FLOW_NOT_NEGOTIATED;
}
}
static GstFlowReturn
gst_y4m_encode_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
GstY4mEncode *filter = GST_Y4M_ENCODE (parent);
GstBuffer *outbuf;
GstClockTime timestamp;
/* check we got some decent info from caps */
if (GST_VIDEO_INFO_FORMAT (&filter->info) == GST_VIDEO_FORMAT_UNKNOWN)
goto not_negotiated;
timestamp = GST_BUFFER_TIMESTAMP (buf);
if (G_UNLIKELY (!filter->header)) {
gboolean tff;
if (GST_VIDEO_INFO_IS_INTERLACED (&filter->info)) {
tff = GST_BUFFER_FLAG_IS_SET (buf, GST_VIDEO_BUFFER_FLAG_TFF);
}
outbuf = gst_y4m_encode_get_stream_header (filter, tff);
filter->header = TRUE;
outbuf =
gst_buffer_append (outbuf, gst_y4m_encode_get_frame_header (filter));
} else {
outbuf = gst_y4m_encode_get_frame_header (filter);
}
/* join with data, FIXME, strides are all wrong etc */
outbuf = gst_buffer_append (outbuf, buf);
/* decorate */
outbuf = gst_buffer_make_writable (outbuf);
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
return gst_pad_push (filter->srcpad, outbuf);
/* ERRORS */
not_negotiated:
{
GST_ELEMENT_ERROR (filter, CORE, NEGOTIATION, (NULL),
("format wasn't negotiated before chain function"));
gst_buffer_unref (buf);
return GST_FLOW_NOT_NEGOTIATED;
}
}
static GstFlowReturn
gst_y4m_encode_chain (GstPad * pad, GstBuffer * buf)
{
GstY4mEncode *filter = GST_Y4M_ENCODE (GST_PAD_PARENT (pad));
GstBuffer *outbuf;
GstClockTime timestamp;
/* check we got some decent info from caps */
if (filter->width < 0) {
GST_ELEMENT_ERROR ("filter", CORE, NEGOTIATION, (NULL),
("format wasn't negotiated before chain function"));
gst_buffer_unref (buf);
return GST_FLOW_NOT_NEGOTIATED;
}
timestamp = GST_BUFFER_TIMESTAMP (buf);
if (G_UNLIKELY (!filter->header)) {
if (filter->interlaced == TRUE) {
if (GST_BUFFER_FLAG_IS_SET (buf, GST_VIDEO_BUFFER_TFF)) {
filter->top_field_first = TRUE;
} else {
filter->top_field_first = FALSE;
}
}
outbuf = gst_y4m_encode_get_stream_header (filter);
filter->header = TRUE;
outbuf = gst_buffer_join (outbuf, gst_y4m_encode_get_frame_header (filter));
} else {
outbuf = gst_y4m_encode_get_frame_header (filter);
}
/* join with data */
outbuf = gst_buffer_join (outbuf, buf);
/* decorate */
gst_buffer_make_metadata_writable (outbuf);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (filter->srcpad));
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
return gst_pad_push (filter->srcpad, outbuf);
}
