static GstFlowReturn
theora_dec_decode_buffer (GstTheoraDec * dec, GstBuffer * buf)
{
ogg_packet packet;
GstFlowReturn result = GST_FLOW_OK;
/* make ogg_packet out of the buffer */
packet.packet = GST_BUFFER_DATA (buf);
packet.bytes = GST_BUFFER_SIZE (buf);
packet.granulepos = GST_BUFFER_OFFSET_END (buf);
packet.packetno = 0; /* we don't really care */
packet.b_o_s = dec->have_header ? 0 : 1;
/* EOS does not matter for the decoder */
packet.e_o_s = 0;
if (dec->have_header) {
if (packet.granulepos != -1) {
dec->granulepos = packet.granulepos;
dec->last_timestamp = _theora_granule_start_time (dec, packet.granulepos);
} else if (dec->last_timestamp != -1) {
dec->last_timestamp = _theora_granule_start_time (dec, dec->granulepos);
}
if (dec->last_timestamp == -1 && GST_BUFFER_TIMESTAMP_IS_VALID (buf))
dec->last_timestamp = GST_BUFFER_TIMESTAMP (buf);
} else {
dec->last_timestamp = -1;
}
GST_DEBUG_OBJECT (dec, "header=%02x packetno=%lld, granule pos=%"
G_GINT64_FORMAT ", outtime=%" GST_TIME_FORMAT,
packet.bytes ? packet.packet[0] : -1, packet.packetno, packet.granulepos,
GST_TIME_ARGS (dec->last_timestamp));
/* switch depending on packet type. A zero byte packet is always a data
* packet; we don't dereference it in that case. */
if (packet.bytes && packet.packet[0] & 0x80) {
if (dec->have_header) {
GST_WARNING_OBJECT (GST_OBJECT (dec), "Ignoring header");
goto done;
}
result = theora_handle_header_packet (dec, &packet);
} else {
result = theora_handle_data_packet (dec, &packet, dec->last_timestamp);
}
done:
/* interpolate granule pos */
dec->granulepos = _inc_granulepos (dec, dec->granulepos);
return result;
}
static GstFlowReturn
theora_dec_decode_buffer (GstTheoraDec * dec, GstBuffer * buf,
GstVideoCodecFrame * frame)
{
ogg_packet packet;
GstFlowReturn result = GST_FLOW_OK;
GstMapInfo minfo;
/* make ogg_packet out of the buffer */
gst_buffer_map (buf, &minfo, GST_MAP_READ);
packet.packet = minfo.data;
packet.bytes = minfo.size;
packet.granulepos = -1;
packet.packetno = 0; /* we don't really care */
packet.b_o_s = dec->have_header ? 0 : 1;
/* EOS does not matter for the decoder */
packet.e_o_s = 0;
GST_LOG_OBJECT (dec, "decode buffer of size %ld", packet.bytes);
GST_DEBUG_OBJECT (dec, "header=%02x", packet.bytes ? packet.packet[0] : -1);
/* switch depending on packet type. A zero byte packet is always a data
* packet; we don't dereference it in that case. */
if (packet.bytes && packet.packet[0] & 0x80) {
if (dec->have_header) {
GST_WARNING_OBJECT (GST_OBJECT (dec), "Ignoring header");
GST_VIDEO_CODEC_FRAME_FLAG_SET (frame,
GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
result = GST_CUSTOM_FLOW_DROP;
goto done;
}
result = theora_handle_header_packet (dec, &packet);
/* header packets are not meant to be displayed */
/* FIXME : This is a temporary hack. The proper fix would be to
* not call _finish_frame() for these types of packets */
GST_VIDEO_CODEC_FRAME_FLAG_SET (frame,
GST_VIDEO_CODEC_FRAME_FLAG_DECODE_ONLY);
} else {
result = theora_handle_data_packet (dec, &packet, frame);
}
done:
gst_buffer_unmap (buf, &minfo);
return result;
}
static GstFlowReturn
theora_dec_decode_buffer (GstTheoraDec * dec, GstBuffer * buf)
{
ogg_packet packet;
GstFlowReturn result = GST_FLOW_OK;
GstClockTime timestamp, duration;
/* make ogg_packet out of the buffer */
packet.packet = GST_BUFFER_DATA (buf);
packet.bytes = GST_BUFFER_SIZE (buf);
packet.granulepos = -1;
packet.packetno = 0; /* we don't really care */
packet.b_o_s = dec->have_header ? 0 : 1;
/* EOS does not matter for the decoder */
packet.e_o_s = 0;
GST_LOG_OBJECT (dec, "decode buffer of size %ld", packet.bytes);
/* save last seem timestamp for interpolating the next timestamps using the
* framerate when we need to */
timestamp = GST_BUFFER_TIMESTAMP (buf);
duration = GST_BUFFER_DURATION (buf);
GST_DEBUG_OBJECT (dec, "header=%02x, outtime=%" GST_TIME_FORMAT,
packet.bytes ? packet.packet[0] : -1, GST_TIME_ARGS (timestamp));
/* switch depending on packet type. A zero byte packet is always a data
* packet; we don't dereference it in that case. */
if (packet.bytes && packet.packet[0] & 0x80) {
if (dec->have_header) {
GST_WARNING_OBJECT (GST_OBJECT (dec), "Ignoring header");
goto done;
}
result = theora_handle_header_packet (dec, &packet);
} else {
result = theora_handle_data_packet (dec, &packet, timestamp, duration);
}
done:
return result;
}
