static GstFlowReturn
gst_rsvg_dec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame)
{
GstRsvgDec *rsvg = GST_RSVG_DEC (decoder);
gboolean ret;
ret = gst_rsvg_decode_image (rsvg, frame->input_buffer, frame);
switch (ret) {
case GST_FLOW_OK:
ret = gst_video_decoder_finish_frame (decoder, frame);
break;
default:
gst_video_codec_frame_unref (frame);
break;
}
GST_LOG_OBJECT (rsvg, "Handle frame done");
return ret;
}
static GstFlowReturn
gst_rsvg_dec_chain (GstPad * pad, GstBuffer * buffer)
{
GstRsvgDec *rsvg = GST_RSVG_DEC (GST_PAD_PARENT (pad));
gboolean completed = FALSE;
const guint8 *data;
guint size;
gboolean ret = GST_FLOW_OK;
/* first_timestamp is used slightly differently where a framerate
is given or not.
If there is a frame rate, it will be used as a base.
If there is not, it will be used to keep track of the timestamp
of the first buffer, to be used as the timestamp of the output
buffer. When a buffer is output, first timestamp will resync to
the next buffer's timestamp. */
if (rsvg->first_timestamp == GST_CLOCK_TIME_NONE) {
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer))
rsvg->first_timestamp = GST_BUFFER_TIMESTAMP (buffer);
else if (rsvg->fps_n != 0)
rsvg->first_timestamp = 0;
}
gst_adapter_push (rsvg->adapter, buffer);
size = gst_adapter_available (rsvg->adapter);
/* "<svg></svg>" */
while (size >= 5 + 6 && ret == GST_FLOW_OK) {
guint i;
data = gst_adapter_peek (rsvg->adapter, size);
for (i = size - 6; i >= 5; i--) {
if (memcmp (data + i, "</svg>", 6) == 0) {
completed = TRUE;
size = i + 6;
break;
}
}
if (completed) {
GstBuffer *outbuf = NULL;
GST_LOG_OBJECT (rsvg, "have complete svg of %u bytes", size);
data = gst_adapter_peek (rsvg->adapter, size);
ret = gst_rsvg_decode_image (rsvg, data, size, &outbuf);
if (ret != GST_FLOW_OK)
break;
if (rsvg->first_timestamp != GST_CLOCK_TIME_NONE) {
GST_BUFFER_TIMESTAMP (outbuf) = rsvg->first_timestamp;
GST_BUFFER_DURATION (outbuf) = GST_CLOCK_TIME_NONE;
if (GST_BUFFER_DURATION_IS_VALID (buffer)) {
GstClockTime end =
GST_BUFFER_TIMESTAMP_IS_VALID (buffer) ?
GST_BUFFER_TIMESTAMP (buffer) : rsvg->first_timestamp;
end += GST_BUFFER_DURATION (buffer);
GST_BUFFER_DURATION (outbuf) = end - GST_BUFFER_TIMESTAMP (outbuf);
}
if (rsvg->fps_n == 0) {
rsvg->first_timestamp = GST_CLOCK_TIME_NONE;
} else {
GST_BUFFER_DURATION (outbuf) =
gst_util_uint64_scale (rsvg->frame_count, rsvg->fps_d,
rsvg->fps_n * GST_SECOND);
}
} else if (rsvg->fps_n != 0) {
GST_BUFFER_TIMESTAMP (outbuf) =
rsvg->first_timestamp + gst_util_uint64_scale (rsvg->frame_count,
rsvg->fps_d, rsvg->fps_n * GST_SECOND);
GST_BUFFER_DURATION (outbuf) =
gst_util_uint64_scale (rsvg->frame_count, rsvg->fps_d,
rsvg->fps_n * GST_SECOND);
} else {
GST_BUFFER_TIMESTAMP (outbuf) = rsvg->first_timestamp;
GST_BUFFER_DURATION (outbuf) = GST_CLOCK_TIME_NONE;
}
rsvg->frame_count++;
if (rsvg->need_newsegment) {
gst_pad_push_event (rsvg->srcpad,
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME, 0, -1, 0));
rsvg->need_newsegment = FALSE;
}
if (rsvg->pending_events) {
GList *l;
for (l = rsvg->pending_events; l; l = l->next)
gst_pad_push_event (rsvg->srcpad, l->data);
g_list_free (rsvg->pending_events);
rsvg->pending_events = NULL;
}
GST_LOG_OBJECT (rsvg, "image rendered okay");
ret = gst_pad_push (rsvg->srcpad, outbuf);
if (ret != GST_FLOW_OK)
break;
gst_adapter_flush (rsvg->adapter, size);
size = gst_adapter_available (rsvg->adapter);
continue;
} else {
break;
}
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_rsvg_dec_chain (GstPad * pad, GstBuffer * buffer)
{
GstRsvgDec *rsvg = GST_RSVG_DEC (gst_pad_get_parent (pad));
gboolean completed = FALSE;
const guint8 *data;
guint size;
gboolean ret = GST_FLOW_OK;
if (rsvg->timestamp_offset == GST_CLOCK_TIME_NONE) {
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer))
rsvg->timestamp_offset = GST_BUFFER_TIMESTAMP (buffer);
else
rsvg->timestamp_offset = 0;
}
gst_adapter_push (rsvg->adapter, buffer);
size = gst_adapter_available (rsvg->adapter);
/* "<svg></svg>" */
while (size >= 5 + 6 && ret == GST_FLOW_OK) {
guint i;
data = gst_adapter_peek (rsvg->adapter, size);
for (i = size - 6; i >= 5; i--) {
if (memcmp (data + i, "</svg>", 6) == 0) {
completed = TRUE;
size = i + 6;
break;
}
}
if (completed) {
GstBuffer *outbuf = NULL;
data = gst_adapter_peek (rsvg->adapter, size);
ret = gst_rsvg_decode_image (rsvg, data, size, &outbuf);
if (ret != GST_FLOW_OK)
break;
if (rsvg->fps_n != 0) {
GST_BUFFER_TIMESTAMP (outbuf) =
rsvg->timestamp_offset + gst_util_uint64_scale (rsvg->frame_count,
rsvg->fps_d, rsvg->fps_n * GST_SECOND);
GST_BUFFER_DURATION (outbuf) =
gst_util_uint64_scale (rsvg->frame_count, rsvg->fps_d,
rsvg->fps_n * GST_SECOND);
} else {
GST_BUFFER_TIMESTAMP (outbuf) = 0;
}
rsvg->frame_count++;
if (rsvg->need_newsegment) {
gst_pad_push_event (rsvg->srcpad,
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME, 0, -1, 0));
rsvg->need_newsegment = FALSE;
}
if (rsvg->pending_events) {
GList *l;
for (l = rsvg->pending_events; l; l = l->next)
gst_pad_push_event (rsvg->srcpad, l->data);
g_list_free (rsvg->pending_events);
rsvg->pending_events = NULL;
}
if (rsvg->pending_tags) {
gst_element_found_tags (GST_ELEMENT_CAST (rsvg), rsvg->pending_tags);
rsvg->pending_tags = NULL;
}
ret = gst_pad_push (rsvg->srcpad, outbuf);
if (ret != GST_FLOW_OK)
break;
gst_adapter_flush (rsvg->adapter, size);
size = gst_adapter_available (rsvg->adapter);
continue;
} else {
break;
}
}
gst_object_unref (rsvg);
return GST_FLOW_OK;
}
