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 void
dxr3videosink_chain (GstPad * pad, GstData * _data)
{
GstBuffer *buf = GST_BUFFER (_data);
Dxr3VideoSink *sink;
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (buf != NULL);
sink = DXR3VIDEOSINK (gst_pad_get_parent (pad));
if (GST_IS_EVENT (buf)) {
dxr3videosink_handle_event (pad, GST_EVENT (buf));
return;
}
/* fprintf (stderr, "^^^^^^ Video block\n"); */
if (sink->cur_buf == NULL) {
sink->cur_buf = buf;
} else {
sink->cur_buf = gst_buffer_append (sink->cur_buf, buf);
}
sink->last_ts = GST_BUFFER_TIMESTAMP (buf);
dxr3videosink_parse_data (sink);
}
static gint
gst_ffmpegauddec_frame (GstFFMpegAudDec * ffmpegdec,
guint8 * data, guint size, gint * got_data, GstFlowReturn * ret)
{
GstFFMpegAudDecClass *oclass;
GstBuffer *outbuf = NULL;
gint have_data = 0, len = 0;
if (G_UNLIKELY (ffmpegdec->context->codec == NULL))
goto no_codec;
GST_LOG_OBJECT (ffmpegdec, "data:%p, size:%d", data, size);
*ret = GST_FLOW_OK;
ffmpegdec->context->frame_number++;
oclass = (GstFFMpegAudDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
len =
gst_ffmpegauddec_audio_frame (ffmpegdec, oclass->in_plugin, data, size,
&outbuf, ret);
if (outbuf)
have_data = 1;
if (len < 0 || have_data < 0) {
GST_WARNING_OBJECT (ffmpegdec,
"avdec_%s: decoding error (len: %d, have_data: %d)",
oclass->in_plugin->name, len, have_data);
*got_data = 0;
goto beach;
} else if (len == 0 && have_data == 0) {
*got_data = 0;
goto beach;
} else {
/* this is where I lost my last clue on ffmpeg... */
*got_data = 1;
}
if (outbuf) {
GST_LOG_OBJECT (ffmpegdec, "Decoded data, now storing buffer %p", outbuf);
if (ffmpegdec->outbuf)
ffmpegdec->outbuf = gst_buffer_append (ffmpegdec->outbuf, outbuf);
else
ffmpegdec->outbuf = outbuf;
} else {
GST_DEBUG_OBJECT (ffmpegdec, "We didn't get a decoded buffer");
}
beach:
return len;
/* ERRORS */
no_codec:
{
GST_ERROR_OBJECT (ffmpegdec, "no codec context");
return -1;
}
}
static GstFlowReturn
gst_rtp_opus_pay_handle_buffer (GstRTPBasePayload * basepayload,
GstBuffer * buffer)
{
GstBuffer *outbuf;
GstClockTime pts, dts, duration;
CopyMetaData data;
pts = GST_BUFFER_PTS (buffer);
dts = GST_BUFFER_DTS (buffer);
duration = GST_BUFFER_DURATION (buffer);
outbuf = gst_rtp_buffer_new_allocate (0, 0, 0);
data.pay = GST_RTP_OPUS_PAY (basepayload);
data.outbuf = outbuf;
gst_buffer_foreach_meta (buffer, foreach_metadata, &data);
outbuf = gst_buffer_append (outbuf, buffer);
GST_BUFFER_PTS (outbuf) = pts;
GST_BUFFER_DTS (outbuf) = dts;
GST_BUFFER_DURATION (outbuf) = duration;
/* Push out */
return gst_rtp_base_payload_push (basepayload, outbuf);
}
/* Handles decrypted buffers only */
static GstFlowReturn
gst_hls_demux_handle_buffer (GstAdaptiveDemux * demux,
GstAdaptiveDemuxStream * stream, GstBuffer * buffer, gboolean force)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
if (G_UNLIKELY (hlsdemux->do_typefind && buffer != NULL)) {
GstCaps *caps = NULL;
GstMapInfo info;
guint buffer_size;
GstTypeFindProbability prob = GST_TYPE_FIND_NONE;
if (hlsdemux->pending_typefind_buffer)
buffer = gst_buffer_append (hlsdemux->pending_typefind_buffer, buffer);
hlsdemux->pending_typefind_buffer = NULL;
gst_buffer_map (buffer, &info, GST_MAP_READ);
buffer_size = info.size;
/* Typefind could miss if buffer is too small. In this case we
* will retry later */
if (buffer_size >= (2 * 1024)) {
caps =
gst_type_find_helper_for_data (GST_OBJECT_CAST (hlsdemux), info.data,
info.size, &prob);
}
gst_buffer_unmap (buffer, &info);
if (G_UNLIKELY (!caps)) {
/* Only fail typefinding if we already a good amount of data
* and we still don't know the type */
if (buffer_size > (2 * 1024 * 1024) || force) {
GST_ELEMENT_ERROR (hlsdemux, STREAM, TYPE_NOT_FOUND,
("Could not determine type of stream"), (NULL));
gst_buffer_unref (buffer);
return GST_FLOW_NOT_NEGOTIATED;
} else {
hlsdemux->pending_typefind_buffer = buffer;
return GST_FLOW_OK;
}
}
GST_DEBUG_OBJECT (hlsdemux, "Typefind result: %" GST_PTR_FORMAT " prob:%d",
caps, prob);
gst_adaptive_demux_stream_set_caps (stream, caps);
hlsdemux->do_typefind = FALSE;
}
g_assert (hlsdemux->pending_typefind_buffer == NULL);
if (buffer) {
buffer = gst_buffer_make_writable (buffer);
GST_BUFFER_OFFSET (buffer) = hlsdemux->current_offset;
hlsdemux->current_offset += gst_buffer_get_size (buffer);
GST_BUFFER_OFFSET_END (buffer) = hlsdemux->current_offset;
return gst_adaptive_demux_stream_push_buffer (stream, buffer);
}
return GST_FLOW_OK;
}
static void
gst_mikmod_loop (GstElement * element)
{
GstMikMod *mikmod;
GstBuffer *buffer_in;
g_return_if_fail (element != NULL);
g_return_if_fail (GST_IS_MIKMOD (element));
mikmod = GST_MIKMOD (element);
srcpad = mikmod->srcpad;
mikmod->Buffer = NULL;
if (!mikmod->initialized) {
while ((buffer_in = GST_BUFFER (gst_pad_pull (mikmod->sinkpad)))) {
if (GST_IS_EVENT (buffer_in)) {
GstEvent *event = GST_EVENT (buffer_in);
if (GST_EVENT_TYPE (event) == GST_EVENT_EOS)
break;
} else {
if (mikmod->Buffer) {
mikmod->Buffer = gst_buffer_append (mikmod->Buffer, buffer_in);
} else {
mikmod->Buffer = buffer_in;
}
}
}
if (!GST_PAD_CAPS (mikmod->srcpad)) {
if (GST_PAD_LINK_SUCCESSFUL (gst_pad_renegotiate (mikmod->srcpad))) {
GST_ELEMENT_ERROR (mikmod, CORE, NEGOTIATION, (NULL), (NULL));
return;
}
}
MikMod_RegisterDriver (&drv_gst);
MikMod_RegisterAllLoaders ();
MikMod_Init ("");
reader = GST_READER_new (mikmod);
module = Player_LoadGeneric (reader, 64, 0);
gst_buffer_unref (mikmod->Buffer);
if (!Player_Active ())
Player_Start (module);
mikmod->initialized = TRUE;
}
if (Player_Active ()) {
timestamp = (module->sngtime / 1024.0) * GST_SECOND;
drv_gst.Update ();
} else {
gst_element_set_eos (GST_ELEMENT (mikmod));
gst_pad_push (mikmod->srcpad, GST_DATA (gst_event_new (GST_EVENT_EOS)));
}
}
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_rtp_base_audio_payload_push_buffer (GstRTPBaseAudioPayload *
baseaudiopayload, GstBuffer * buffer, GstClockTime timestamp)
{
GstRTPBasePayload *basepayload;
GstRTPBaseAudioPayloadPrivate *priv;
GstBuffer *outbuf;
guint payload_len;
GstFlowReturn ret;
priv = baseaudiopayload->priv;
basepayload = GST_RTP_BASE_PAYLOAD (baseaudiopayload);
payload_len = gst_buffer_get_size (buffer);
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing %d bytes ts %" GST_TIME_FORMAT,
payload_len, GST_TIME_ARGS (timestamp));
/* create just the RTP header buffer */
outbuf = gst_rtp_base_payload_allocate_output_buffer (basepayload, 0, 0, 0);
/* set metadata */
gst_rtp_base_audio_payload_set_meta (baseaudiopayload, outbuf, payload_len,
timestamp);
if (priv->buffer_list) {
GstBufferList *list;
guint i, len;
list = gst_buffer_list_new ();
len = gst_buffer_list_length (list);
for (i = 0; i < len; i++) {
/* FIXME */
g_warning ("bufferlist not implemented");
gst_buffer_list_add (list, outbuf);
gst_buffer_list_add (list, buffer);
}
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing list %p", list);
ret = gst_rtp_base_payload_push_list (basepayload, list);
} else {
CopyMetaData data;
/* copy payload */
data.pay = baseaudiopayload;
data.outbuf = outbuf;
gst_buffer_foreach_meta (buffer, foreach_metadata, &data);
outbuf = gst_buffer_append (outbuf, buffer);
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing buffer %p", outbuf);
ret = gst_rtp_base_payload_push (basepayload, outbuf);
}
return ret;
}
static GstFlowReturn
gst_rtp_sbc_pay_flush_buffers (GstRtpSBCPay * sbcpay)
{
GstRTPBuffer rtp = GST_RTP_BUFFER_INIT;
guint available;
guint max_payload;
GstBuffer *outbuf, *paybuf;
guint8 *payload_data;
guint frame_count;
guint payload_length;
struct rtp_payload *payload;
if (sbcpay->frame_length == 0) {
GST_ERROR_OBJECT (sbcpay, "Frame length is 0");
return GST_FLOW_ERROR;
}
available = gst_adapter_available (sbcpay->adapter);
max_payload =
gst_rtp_buffer_calc_payload_len (GST_RTP_BASE_PAYLOAD_MTU (sbcpay) -
RTP_SBC_PAYLOAD_HEADER_SIZE, 0, 0);
max_payload = MIN (max_payload, available);
frame_count = max_payload / sbcpay->frame_length;
payload_length = frame_count * sbcpay->frame_length;
if (payload_length == 0) /* Nothing to send */
return GST_FLOW_OK;
outbuf = gst_rtp_buffer_new_allocate (RTP_SBC_PAYLOAD_HEADER_SIZE, 0, 0);
/* get payload */
gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
gst_rtp_buffer_set_payload_type (&rtp, GST_RTP_BASE_PAYLOAD_PT (sbcpay));
/* write header and copy data into payload */
payload_data = gst_rtp_buffer_get_payload (&rtp);
payload = (struct rtp_payload *) payload_data;
memset (payload, 0, sizeof (struct rtp_payload));
payload->frame_count = frame_count;
gst_rtp_buffer_unmap (&rtp);
paybuf = gst_adapter_take_buffer_fast (sbcpay->adapter, payload_length);
gst_rtp_copy_meta (GST_ELEMENT_CAST (sbcpay), outbuf, paybuf,
g_quark_from_static_string (GST_META_TAG_AUDIO_STR));
outbuf = gst_buffer_append (outbuf, paybuf);
/* FIXME: what about duration? */
GST_BUFFER_PTS (outbuf) = sbcpay->timestamp;
GST_DEBUG_OBJECT (sbcpay, "Pushing %d bytes", payload_length);
return gst_rtp_base_payload_push (GST_RTP_BASE_PAYLOAD (sbcpay), outbuf);
}
static GstFlowReturn
_download_chain (GstBuffer * buffer, gpointer user_data)
{
dl_context *ctx = user_data;
if (ctx->buffer)
gst_buffer_append (ctx->buffer, buffer);
else
ctx->buffer = buffer;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_rtp_opus_pay_handle_buffer (GstRTPBasePayload * basepayload,
GstBuffer * buffer)
{
GstBuffer *outbuf;
outbuf = gst_rtp_buffer_new_allocate (0, 0, 0);
outbuf = gst_buffer_append (outbuf, gst_buffer_ref (buffer));
/* Push out */
return gst_rtp_base_payload_push (basepayload, outbuf);
}
static GstFlowReturn
gst_hls_demux_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
GstHLSDemux *demux = GST_HLS_DEMUX (parent);
if (demux->playlist == NULL)
demux->playlist = buf;
else
demux->playlist = gst_buffer_append (demux->playlist, buf);
return GST_FLOW_OK;
}
static GstBufferList *
create_buffer_list (guint * data_size)
{
GstBufferList *list;
GstBuffer *rtp_buffer;
GstBuffer *data_buffer;
list = gst_buffer_list_new ();
/*** First group, i.e. first packet. **/
/* Create the RTP header buffer */
rtp_buffer = gst_buffer_new_allocate (NULL, RTP_HEADER_SIZE, NULL);
gst_buffer_memset (rtp_buffer, 0, 0, RTP_HEADER_SIZE);
/* Create the buffer that holds the payload */
data_buffer = gst_buffer_new_allocate (NULL, RTP_PAYLOAD_SIZE, NULL);
gst_buffer_memset (data_buffer, 0, 0, RTP_PAYLOAD_SIZE);
/* Create a new group to hold the rtp header and the payload */
gst_buffer_list_add (list, gst_buffer_append (rtp_buffer, data_buffer));
/*** Second group, i.e. second packet. ***/
/* Create the RTP header buffer */
rtp_buffer = gst_buffer_new_allocate (NULL, RTP_HEADER_SIZE, NULL);
gst_buffer_memset (rtp_buffer, 0, 0, RTP_HEADER_SIZE);
/* Create the buffer that holds the payload */
data_buffer = gst_buffer_new_allocate (NULL, RTP_PAYLOAD_SIZE, NULL);
gst_buffer_memset (data_buffer, 0, 0, RTP_PAYLOAD_SIZE);
/* Create a new group to hold the rtp header and the payload */
gst_buffer_list_add (list, gst_buffer_append (rtp_buffer, data_buffer));
/* Calculate the size of the data */
*data_size = 2 * RTP_HEADER_SIZE + 2 * RTP_PAYLOAD_SIZE;
return list;
}
static GstFlowReturn
gst_rtp_mp2t_pay_flush (GstRTPMP2TPay * rtpmp2tpay)
{
guint avail, mtu;
GstFlowReturn ret = GST_FLOW_OK;
GstBuffer *outbuf;
avail = gst_adapter_available (rtpmp2tpay->adapter);
mtu = GST_RTP_BASE_PAYLOAD_MTU (rtpmp2tpay);
while (avail > 0 && (ret == GST_FLOW_OK)) {
guint towrite;
guint payload_len;
guint packet_len;
GstBuffer *paybuf;
/* this will be the total length of the packet */
packet_len = gst_rtp_buffer_calc_packet_len (avail, 0, 0);
/* fill one MTU or all available bytes */
towrite = MIN (packet_len, mtu);
/* this is the payload length */
payload_len = gst_rtp_buffer_calc_payload_len (towrite, 0, 0);
payload_len -= payload_len % 188;
/* need whole packets */
if (!payload_len)
break;
/* create buffer to hold the payload */
outbuf = gst_rtp_buffer_new_allocate (0, 0, 0);
/* get payload */
paybuf = gst_adapter_take_buffer_fast (rtpmp2tpay->adapter, payload_len);
gst_rtp_copy_meta (GST_ELEMENT_CAST (rtpmp2tpay), outbuf, paybuf, 0);
outbuf = gst_buffer_append (outbuf, paybuf);
avail -= payload_len;
GST_BUFFER_PTS (outbuf) = rtpmp2tpay->first_ts;
GST_BUFFER_DURATION (outbuf) = rtpmp2tpay->duration;
GST_DEBUG_OBJECT (rtpmp2tpay, "pushing buffer of size %u",
(guint) gst_buffer_get_size (outbuf));
ret = gst_rtp_base_payload_push (GST_RTP_BASE_PAYLOAD (rtpmp2tpay), outbuf);
}
return ret;
}
static GstFlowReturn
gst_rtp_gsm_pay_handle_buffer (GstRTPBasePayload * basepayload,
GstBuffer * buffer)
{
GstRTPGSMPay *rtpgsmpay;
guint payload_len;
GstBuffer *outbuf;
GstClockTime timestamp, duration;
GstFlowReturn ret;
rtpgsmpay = GST_RTP_GSM_PAY (basepayload);
timestamp = GST_BUFFER_PTS (buffer);
duration = GST_BUFFER_DURATION (buffer);
/* FIXME, only one GSM frame per RTP packet for now */
payload_len = gst_buffer_get_size (buffer);
/* FIXME, just error out for now */
if (payload_len > GST_RTP_BASE_PAYLOAD_MTU (rtpgsmpay))
goto too_big;
outbuf = gst_rtp_buffer_new_allocate (payload_len, 0, 0);
/* copy timestamp and duration */
GST_BUFFER_PTS (outbuf) = timestamp;
GST_BUFFER_DURATION (outbuf) = duration;
gst_rtp_copy_meta (GST_ELEMENT_CAST (rtpgsmpay), outbuf, buffer,
g_quark_from_static_string (GST_META_TAG_AUDIO_STR));
/* append payload */
outbuf = gst_buffer_append (outbuf, buffer);
GST_DEBUG ("gst_rtp_gsm_pay_chain: pushing buffer of size %" G_GSIZE_FORMAT,
gst_buffer_get_size (outbuf));
ret = gst_rtp_base_payload_push (basepayload, outbuf);
return ret;
/* ERRORS */
too_big:
{
GST_ELEMENT_ERROR (rtpgsmpay, STREAM, ENCODE, (NULL),
("payload_len %u > mtu %u", payload_len,
GST_RTP_BASE_PAYLOAD_MTU (rtpgsmpay)));
return GST_FLOW_ERROR;
}
}
/* Internal method only. Tries to merge buffers at the head of the queue
* to form a single larger buffer of size 'size'.
*
* Returns TRUE if it managed to merge anything.
*/
static gboolean
gst_adapter_try_to_merge_up (GstAdapter * adapter, gsize size)
{
GstBuffer *cur, *head;
GSList *g;
gboolean ret = FALSE;
gsize hsize;
g = adapter->buflist;
if (g == NULL)
return FALSE;
head = g->data;
hsize = gst_buffer_get_size (head);
/* Remove skipped part from the buffer (otherwise the buffer might grow indefinitely) */
head = gst_buffer_make_writable (head);
gst_buffer_resize (head, adapter->skip, hsize - adapter->skip);
hsize -= adapter->skip;
adapter->skip = 0;
g->data = head;
g = g_slist_next (g);
while (g != NULL && hsize < size) {
cur = g->data;
/* Merge the head buffer and the next in line */
GST_LOG_OBJECT (adapter, "Merging buffers of size %" G_GSIZE_FORMAT " & %"
G_GSIZE_FORMAT " in search of target %" G_GSIZE_FORMAT,
hsize, gst_buffer_get_size (cur), size);
head = gst_buffer_append (head, cur);
hsize = gst_buffer_get_size (head);
ret = TRUE;
/* Delete the front list item, and store our new buffer in the 2nd list
* item */
adapter->buflist = g_slist_delete_link (adapter->buflist, adapter->buflist);
g->data = head;
/* invalidate scan position */
adapter->scan_offset = 0;
adapter->scan_entry = NULL;
g = g_slist_next (g);
}
return ret;
}
static GstFlowReturn gst_vqe_sdp_demux_sink_chain(
GstPad *pad, GstObject *parent, GstBuffer *buffer)
{
GstVQESDPDemux * demux = GST_VQE_SDP_DEMUX(parent);
if (!demux->sdpfile_complete) {
if (!demux->sdpfile)
demux->sdpfile = gst_buffer_new();
demux->sdpfile = gst_buffer_append(demux->sdpfile, buffer);
return GST_FLOW_OK;
}
else {
return GST_FLOW_EOS;
}
}
static GstFlowReturn
gst_asf_parse_pull_headers (GstAsfParse * asfparse)
{
GstBuffer *guid_and_size = NULL;
GstBuffer *headers = NULL;
guint64 size;
GstFlowReturn ret;
GstMapInfo map;
if ((ret = gst_pad_pull_range (asfparse->sinkpad, asfparse->offset,
ASF_GUID_OBJSIZE_SIZE, &guid_and_size)) != GST_FLOW_OK) {
GST_ERROR_OBJECT (asfparse, "Failed to pull data from headers");
goto leave;
}
asfparse->offset += ASF_GUID_OBJSIZE_SIZE;
gst_buffer_map (guid_and_size, &map, GST_MAP_READ);
size = gst_asf_match_and_peek_obj_size (map.data,
&(guids[ASF_HEADER_OBJECT_INDEX]));
gst_buffer_unmap (guid_and_size, &map);
if (size == 0) {
GST_ERROR_OBJECT (asfparse, "ASF starting identifier missing");
goto leave;
}
if ((ret = gst_pad_pull_range (asfparse->sinkpad, asfparse->offset,
size - ASF_GUID_OBJSIZE_SIZE, &headers)) != GST_FLOW_OK) {
GST_ERROR_OBJECT (asfparse, "Failed to pull data from headers");
goto leave;
}
headers = gst_buffer_append (guid_and_size, headers);
guid_and_size = NULL;
asfparse->offset += size - ASF_GUID_OBJSIZE_SIZE;
if (!gst_asf_parse_headers (headers, asfparse->asfinfo)) {
goto leave;
}
return gst_asf_parse_push (asfparse, headers);
leave:
if (headers)
gst_buffer_unref (headers);
if (guid_and_size)
gst_buffer_unref (guid_and_size);
return ret;
}
static GstFlowReturn
gst_hls_demux_data_received (GstAdaptiveDemux * demux,
GstAdaptiveDemuxStream * stream)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
gsize available;
GstBuffer *buffer = NULL;
available = gst_adapter_available (stream->adapter);
/* Is it encrypted? */
if (hlsdemux->current_key) {
GError *err = NULL;
GstBuffer *tmp_buffer;
/* must be a multiple of 16 */
available = available & (~0xF);
if (available == 0) {
return GST_FLOW_OK;
}
buffer = gst_adapter_take_buffer (stream->adapter, available);
buffer = gst_hls_demux_decrypt_fragment (hlsdemux, buffer, &err);
if (buffer == NULL) {
GST_ELEMENT_ERROR (demux, STREAM, DECODE, ("Failed to decrypt buffer"),
("decryption failed %s", err->message));
g_error_free (err);
return GST_FLOW_ERROR;
}
tmp_buffer = hlsdemux->pending_buffer;
hlsdemux->pending_buffer = buffer;
buffer = tmp_buffer;
} else {
buffer = gst_adapter_take_buffer (stream->adapter, available);
if (hlsdemux->pending_buffer) {
buffer = gst_buffer_append (hlsdemux->pending_buffer, buffer);
hlsdemux->pending_buffer = NULL;
}
}
return gst_hls_demux_handle_buffer (demux, stream, buffer, FALSE);
}
gboolean
gst_fragment_add_buffer (GstFragment * fragment, GstBuffer * buffer)
{
g_return_val_if_fail (fragment != NULL, FALSE);
g_return_val_if_fail (buffer != NULL, FALSE);
if (fragment->completed) {
GST_WARNING ("Fragment is completed, could not add more buffers");
return FALSE;
}
GST_DEBUG ("Adding new buffer to the fragment");
/* We steal the buffers you pass in */
if (fragment->priv->buffer == NULL)
fragment->priv->buffer = buffer;
else
fragment->priv->buffer = gst_buffer_append (fragment->priv->buffer, buffer);
return TRUE;
}
static GstFlowReturn
gst_nsfdec_chain (GstPad * pad, GstBuffer * buffer)
{
GstNsfDec *nsfdec;
nsfdec = GST_NSFDEC (gst_pad_get_parent (pad));
/* collect all data, we start doing something when we get an EOS
* event */
if (nsfdec->tune_buffer) {
nsfdec->tune_buffer = gst_buffer_append (nsfdec->tune_buffer, buffer);
} else {
nsfdec->tune_buffer = buffer;
}
gst_object_unref (nsfdec);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_asf_parse_pull_indexes (GstAsfParse * asfparse)
{
GstBuffer *guid_and_size;
GstBuffer *buf;
guint64 obj_size;
GstFlowReturn ret = GST_FLOW_OK;
while (1) {
guid_and_size = NULL;
ret = gst_pad_pull_range (asfparse->sinkpad, asfparse->offset,
ASF_GUID_OBJSIZE_SIZE, &guid_and_size);
if (ret != GST_FLOW_OK)
break;
/* we can peek at the object size */
obj_size = gst_asf_match_and_peek_obj_size_buf (guid_and_size, NULL);
if (obj_size == 0) {
GST_ERROR_OBJECT (asfparse, "Incomplete object found");
gst_buffer_unref (guid_and_size);
ret = GST_FLOW_ERROR;
break;
}
asfparse->offset += ASF_GUID_OBJSIZE_SIZE;
/* pull the rest of the object */
buf = NULL;
ret = gst_pad_pull_range (asfparse->sinkpad, asfparse->offset, obj_size,
&buf);
if (ret != GST_FLOW_OK) {
gst_buffer_unref (guid_and_size);
break;
}
asfparse->offset += obj_size - ASF_GUID_OBJSIZE_SIZE;
buf = gst_buffer_append (guid_and_size, buf);
ret = gst_asf_parse_push (asfparse, buf);
if (ret != GST_FLOW_OK)
break;
}
return ret;
}
static GstFlowReturn
gst_rtp_g723_pay_flush (GstRTPG723Pay * pay)
{
GstBuffer *outbuf, *payload_buf;
GstFlowReturn ret;
guint avail;
GstRTPBuffer rtp = { NULL };
avail = gst_adapter_available (pay->adapter);
outbuf = gst_rtp_buffer_new_allocate (0, 0, 0);
gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
GST_BUFFER_PTS (outbuf) = pay->timestamp;
GST_BUFFER_DURATION (outbuf) = pay->duration;
/* copy G723 data as payload */
payload_buf = gst_adapter_take_buffer_fast (pay->adapter, avail);
pay->timestamp = GST_CLOCK_TIME_NONE;
pay->duration = 0;
/* set discont and marker */
if (pay->discont) {
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
gst_rtp_buffer_set_marker (&rtp, TRUE);
pay->discont = FALSE;
}
gst_rtp_buffer_unmap (&rtp);
gst_rtp_copy_meta (GST_ELEMENT_CAST (pay), outbuf, payload_buf,
g_quark_from_static_string (GST_META_TAG_AUDIO_STR));
outbuf = gst_buffer_append (outbuf, payload_buf);
ret = gst_rtp_base_payload_push (GST_RTP_BASE_PAYLOAD (pay), outbuf);
return ret;
}
/**
* gst_rtp_base_audio_payload_flush:
* @baseaudiopayload: a #GstRTPBasePayload
* @payload_len: length of payload
* @timestamp: a #GstClockTime
*
* Create an RTP buffer and store @payload_len bytes of the adapter as the
* payload. Set the timestamp on the new buffer to @timestamp before pushing
* the buffer downstream.
*
* If @payload_len is -1, all pending bytes will be flushed. If @timestamp is
* -1, the timestamp will be calculated automatically.
*
* Returns: a #GstFlowReturn
*/
GstFlowReturn
gst_rtp_base_audio_payload_flush (GstRTPBaseAudioPayload * baseaudiopayload,
guint payload_len, GstClockTime timestamp)
{
GstRTPBasePayload *basepayload;
GstRTPBaseAudioPayloadPrivate *priv;
GstBuffer *outbuf;
GstFlowReturn ret;
GstAdapter *adapter;
guint64 distance;
priv = baseaudiopayload->priv;
adapter = priv->adapter;
basepayload = GST_RTP_BASE_PAYLOAD (baseaudiopayload);
if (payload_len == -1)
payload_len = gst_adapter_available (adapter);
/* nothing to do, just return */
if (payload_len == 0)
return GST_FLOW_OK;
if (timestamp == -1) {
/* calculate the timestamp */
timestamp = gst_adapter_prev_pts (adapter, &distance);
GST_LOG_OBJECT (baseaudiopayload,
"last timestamp %" GST_TIME_FORMAT ", distance %" G_GUINT64_FORMAT,
GST_TIME_ARGS (timestamp), distance);
if (GST_CLOCK_TIME_IS_VALID (timestamp) && distance > 0) {
/* convert the number of bytes since the last timestamp to time and add to
* the last seen timestamp */
timestamp += priv->bytes_to_time (baseaudiopayload, distance);
}
}
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing %d bytes ts %" GST_TIME_FORMAT,
payload_len, GST_TIME_ARGS (timestamp));
if (priv->buffer_list && gst_adapter_available_fast (adapter) >= payload_len) {
GstBuffer *buffer;
/* we can quickly take a buffer out of the adapter without having to copy
* anything. */
buffer = gst_adapter_take_buffer (adapter, payload_len);
ret =
gst_rtp_base_audio_payload_push_buffer (baseaudiopayload, buffer,
timestamp);
} else {
GstBuffer *paybuf;
CopyMetaData data;
/* create buffer to hold the payload */
outbuf = gst_rtp_base_payload_allocate_output_buffer (basepayload, 0, 0, 0);
paybuf = gst_adapter_take_buffer_fast (adapter, payload_len);
data.pay = baseaudiopayload;
data.outbuf = outbuf;
gst_buffer_foreach_meta (paybuf, foreach_metadata, &data);
outbuf = gst_buffer_append (outbuf, paybuf);
/* set metadata */
gst_rtp_base_audio_payload_set_meta (baseaudiopayload, outbuf, payload_len,
timestamp);
ret = gst_rtp_base_payload_push (basepayload, outbuf);
}
return ret;
}
static GstFlowReturn
gst_rtp_asf_pay_handle_buffer (GstRTPBasePayload * rtppay, GstBuffer * buffer)
{
GstRtpAsfPay *rtpasfpay = GST_RTP_ASF_PAY_CAST (rtppay);
if (G_UNLIKELY (rtpasfpay->state == ASF_END)) {
GST_LOG_OBJECT (rtpasfpay,
"Dropping buffer as we already pushed all packets");
gst_buffer_unref (buffer);
return GST_FLOW_EOS; /* we already finished our job */
}
/* receive headers
* we only accept if they are in a single buffer */
if (G_UNLIKELY (rtpasfpay->state == ASF_NOT_STARTED)) {
guint64 header_size;
if (gst_buffer_get_size (buffer) < 24) { /* guid+object size size */
GST_ERROR_OBJECT (rtpasfpay,
"Buffer too small, smaller than a Guid and object size");
gst_buffer_unref (buffer);
return GST_FLOW_ERROR;
}
header_size = gst_asf_match_and_peek_obj_size_buf (buffer,
&(guids[ASF_HEADER_OBJECT_INDEX]));
if (header_size > 0) {
GST_DEBUG_OBJECT (rtpasfpay, "ASF header guid received, size %"
G_GUINT64_FORMAT, header_size);
if (gst_buffer_get_size (buffer) < header_size) {
GST_ERROR_OBJECT (rtpasfpay, "Headers should be contained in a single"
" buffer");
gst_buffer_unref (buffer);
return GST_FLOW_ERROR;
} else {
rtpasfpay->state = ASF_DATA_OBJECT;
/* clear previous headers, if any */
if (rtpasfpay->headers) {
gst_buffer_unref (rtpasfpay->headers);
}
GST_DEBUG_OBJECT (rtpasfpay, "Storing headers");
if (gst_buffer_get_size (buffer) == header_size) {
rtpasfpay->headers = buffer;
return GST_FLOW_OK;
} else {
/* headers are a subbuffer of thie buffer */
GstBuffer *aux = gst_buffer_copy_region (buffer,
GST_BUFFER_COPY_ALL, header_size,
gst_buffer_get_size (buffer) - header_size);
rtpasfpay->headers = gst_buffer_copy_region (buffer,
GST_BUFFER_COPY_ALL, 0, header_size);
gst_buffer_replace (&buffer, aux);
}
}
} else {
GST_ERROR_OBJECT (rtpasfpay, "Missing ASF header start");
gst_buffer_unref (buffer);
return GST_FLOW_ERROR;
}
}
if (G_UNLIKELY (rtpasfpay->state == ASF_DATA_OBJECT)) {
GstMapInfo map;
if (gst_buffer_get_size (buffer) != ASF_DATA_OBJECT_SIZE) {
GST_ERROR_OBJECT (rtpasfpay, "Received buffer of different size of "
"the data object header");
gst_buffer_unref (buffer);
return GST_FLOW_ERROR;
}
gst_buffer_map (buffer, &map, GST_MAP_READ);
if (gst_asf_match_guid (map.data, &(guids[ASF_DATA_OBJECT_INDEX]))) {
gst_buffer_unmap (buffer, &map);
GST_DEBUG_OBJECT (rtpasfpay, "Received data object header");
rtpasfpay->headers = gst_buffer_append (rtpasfpay->headers, buffer);
rtpasfpay->state = ASF_PACKETS;
return gst_rtp_asf_pay_parse_headers (rtpasfpay);
} else {
gst_buffer_unmap (buffer, &map);
GST_ERROR_OBJECT (rtpasfpay, "Unexpected object received (was expecting "
"data object)");
gst_buffer_unref (buffer);
return GST_FLOW_ERROR;
}
}
if (G_LIKELY (rtpasfpay->state == ASF_PACKETS)) {
/* in broadcast mode we can't trust the packets count information
* from the headers
* We assume that if this is on broadcast mode it is a live stream
* and we are going to keep receiving packets indefinitely
*/
if (rtpasfpay->asfinfo.broadcast ||
rtpasfpay->packets_count < rtpasfpay->asfinfo.packets_count) {
GST_DEBUG_OBJECT (rtpasfpay, "Received packet %"
G_GUINT64_FORMAT "/%" G_GUINT64_FORMAT,
rtpasfpay->packets_count, rtpasfpay->asfinfo.packets_count);
rtpasfpay->packets_count++;
return gst_rtp_asf_pay_handle_packet (rtpasfpay, buffer);
} else {
GST_INFO_OBJECT (rtpasfpay, "Packets ended");
rtpasfpay->state = ASF_END;
gst_buffer_unref (buffer);
return GST_FLOW_EOS;
}
}
gst_buffer_unref (buffer);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_rtp_mpa_pay_flush (GstRtpMPAPay * rtpmpapay)
{
guint avail;
GstBuffer *outbuf;
GstFlowReturn ret;
guint16 frag_offset;
GstBufferList *list;
/* the data available in the adapter is either smaller
* than the MTU or bigger. In the case it is smaller, the complete
* adapter contents can be put in one packet. In the case the
* adapter has more than one MTU, we need to split the MPA data
* over multiple packets. The frag_offset in each packet header
* needs to be updated with the position in the MPA frame. */
avail = gst_adapter_available (rtpmpapay->adapter);
ret = GST_FLOW_OK;
list =
gst_buffer_list_new_sized (avail / (GST_RTP_BASE_PAYLOAD_MTU (rtpmpapay) -
RTP_HEADER_LEN) + 1);
frag_offset = 0;
while (avail > 0) {
guint towrite;
guint8 *payload;
guint payload_len;
guint packet_len;
GstRTPBuffer rtp = { NULL };
GstBuffer *paybuf;
/* this will be the total length of the packet */
packet_len = gst_rtp_buffer_calc_packet_len (4 + avail, 0, 0);
/* fill one MTU or all available bytes */
towrite = MIN (packet_len, GST_RTP_BASE_PAYLOAD_MTU (rtpmpapay));
/* this is the payload length */
payload_len = gst_rtp_buffer_calc_payload_len (towrite, 0, 0);
/* create buffer to hold the payload */
outbuf = gst_rtp_buffer_new_allocate (4, 0, 0);
gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
payload_len -= 4;
gst_rtp_buffer_set_payload_type (&rtp, GST_RTP_PAYLOAD_MPA);
/*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MBZ | Frag_offset |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
payload = gst_rtp_buffer_get_payload (&rtp);
payload[0] = 0;
payload[1] = 0;
payload[2] = frag_offset >> 8;
payload[3] = frag_offset & 0xff;
avail -= payload_len;
frag_offset += payload_len;
if (avail == 0)
gst_rtp_buffer_set_marker (&rtp, TRUE);
gst_rtp_buffer_unmap (&rtp);
paybuf = gst_adapter_take_buffer_fast (rtpmpapay->adapter, payload_len);
gst_rtp_copy_meta (GST_ELEMENT_CAST (rtpmpapay), outbuf, paybuf,
g_quark_from_static_string (GST_META_TAG_AUDIO_STR));
outbuf = gst_buffer_append (outbuf, paybuf);
GST_BUFFER_PTS (outbuf) = rtpmpapay->first_ts;
GST_BUFFER_DURATION (outbuf) = rtpmpapay->duration;
gst_buffer_list_add (list, outbuf);
}
ret = gst_rtp_base_payload_push_list (GST_RTP_BASE_PAYLOAD (rtpmpapay), list);
return ret;
}
/*
* Test if the parser pushes clean data properly.
*/
void
gst_parser_test_run (GstParserTest * test, GstCaps ** out_caps)
{
buffer_verify_data_s vdata = { 0, 0, 0, NULL, 0, NULL, FALSE };
GstElement *element;
GstBuffer *buffer = NULL;
GstCaps *src_caps;
guint i, j, k;
guint frames = 0, size = 0;
element = setup_element (test->factory, test->sink_template, NULL,
test->src_template, test->src_caps);
/* push some setup headers */
for (j = 0; j < G_N_ELEMENTS (test->headers) && test->headers[j].data; j++) {
buffer = buffer_new (test->headers[j].data, test->headers[j].size);
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
}
for (j = 0; j < 3; j++) {
for (i = 0; i < test->series[j].num; i++) {
/* sanity enforcing */
for (k = 0; k < MAX (1, test->series[j].fpb); k++) {
if (!k)
buffer = buffer_new (test->series[j].data, test->series[j].size);
else {
buffer = gst_buffer_append (buffer,
buffer_new (test->series[j].data, test->series[j].size));
}
}
fail_unless_equals_int (gst_pad_push (srcpad, buffer), GST_FLOW_OK);
if (j == 0)
vdata.buffers_before_offset_skip++;
else if (j == 1)
vdata.offset_skip_amount += test->series[j].size * test->series[j].fpb;
if (j != 1) {
frames += test->series[j].fpb;
size += test->series[j].size * test->series[j].fpb;
}
}
}
gst_pad_push_event (srcpad, gst_event_new_eos ());
if (G_LIKELY (test->framed))
fail_unless_equals_int (g_list_length (buffers) - test->discard, frames);
/* if all frames are identical, do extended test,
* otherwise only verify total data size */
if (test->series[0].data && (!test->series[2].size ||
(test->series[0].size == test->series[2].size && test->series[2].data
&& !memcmp (test->series[0].data, test->series[2].data,
test->series[0].size)))) {
vdata.data_to_verify = test->series[0].data;
vdata.data_to_verify_size = test->series[0].size;
vdata.caps = test->sink_caps;
vdata.discard = test->discard;
vdata.no_metadata = test->no_metadata;
g_list_foreach (buffers, buffer_verify_data, &vdata);
} else {
guint datasum = 0;
g_list_foreach (buffers, buffer_count_size, &datasum);
size -= test->dropped;
fail_unless_equals_int (datasum, size);
}
src_caps = gst_pad_get_current_caps (sinkpad);
GST_LOG ("output caps: %" GST_PTR_FORMAT, src_caps);
if (test->sink_caps) {
GST_LOG ("%" GST_PTR_FORMAT " = %" GST_PTR_FORMAT " ?", src_caps,
test->sink_caps);
fail_unless (gst_caps_is_equal (src_caps, test->sink_caps));
}
if (out_caps)
*out_caps = src_caps;
else
gst_caps_unref (src_caps);
cleanup_element (element);
}
static GstFlowReturn
gst_dvd_spu_subpic_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
GstDVDSpu *dvdspu = (GstDVDSpu *) parent;
GstFlowReturn ret = GST_FLOW_OK;
gsize size;
g_return_val_if_fail (dvdspu != NULL, GST_FLOW_ERROR);
GST_INFO_OBJECT (dvdspu, "Have subpicture buffer with timestamp %"
GST_TIME_FORMAT " and size %" G_GSIZE_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)), gst_buffer_get_size (buf));
DVD_SPU_LOCK (dvdspu);
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
dvdspu->subp_seg.position = GST_BUFFER_TIMESTAMP (buf);
}
if (GST_BUFFER_IS_DISCONT (buf) && dvdspu->partial_spu) {
gst_buffer_unref (dvdspu->partial_spu);
dvdspu->partial_spu = NULL;
}
if (dvdspu->partial_spu != NULL) {
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf))
GST_WARNING_OBJECT (dvdspu,
"Joining subpicture buffer with timestamp to previous");
dvdspu->partial_spu = gst_buffer_append (dvdspu->partial_spu, buf);
} else {
/* If we don't yet have a buffer, wait for one with a timestamp,
* since that will avoid collecting the 2nd half of a partial buf */
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf))
dvdspu->partial_spu = buf;
else
gst_buffer_unref (buf);
}
if (dvdspu->partial_spu == NULL)
goto done;
size = gst_buffer_get_size (dvdspu->partial_spu);
switch (dvdspu->spu_input_type) {
case SPU_INPUT_TYPE_VOBSUB:
if (size >= 2) {
guint8 header[2];
guint16 packet_size;
gst_buffer_extract (dvdspu->partial_spu, 0, header, 2);
packet_size = GST_READ_UINT16_BE (header);
if (packet_size == size) {
submit_new_spu_packet (dvdspu, dvdspu->partial_spu);
dvdspu->partial_spu = NULL;
} else if (packet_size == 0) {
GST_LOG_OBJECT (dvdspu, "Discarding empty SPU buffer");
gst_buffer_unref (dvdspu->partial_spu);
dvdspu->partial_spu = NULL;
} else if (packet_size < size) {
/* Somehow we collected too much - something is wrong. Drop the
* packet entirely and wait for a new one */
GST_DEBUG_OBJECT (dvdspu,
"Discarding invalid SPU buffer of size %" G_GSIZE_FORMAT, size);
gst_buffer_unref (dvdspu->partial_spu);
dvdspu->partial_spu = NULL;
} else {
GST_LOG_OBJECT (dvdspu,
"SPU buffer claims to be of size %u. Collected %" G_GSIZE_FORMAT
" so far.", packet_size, size);
}
}
break;
case SPU_INPUT_TYPE_PGS:{
/* Collect until we have a command buffer that ends exactly at the size
* we've collected */
guint8 packet_type;
guint16 packet_size;
GstMapInfo map;
guint8 *ptr, *end;
gboolean invalid = FALSE;
gst_buffer_map (dvdspu->partial_spu, &map, GST_MAP_READ);
ptr = map.data;
end = ptr + map.size;
/* FIXME: There's no need to walk the command set each time. We can set a
* marker and resume where we left off next time */
/* FIXME: Move the packet parsing and sanity checking into the format-specific modules */
while (ptr != end) {
if (ptr + 3 > end)
break;
packet_type = *ptr++;
packet_size = GST_READ_UINT16_BE (ptr);
ptr += 2;
if (ptr + packet_size > end)
break;
ptr += packet_size;
/* 0x80 is the END command for PGS packets */
if (packet_type == 0x80 && ptr != end) {
/* Extra cruft on the end of the packet -> assume invalid */
invalid = TRUE;
break;
}
}
gst_buffer_unmap (dvdspu->partial_spu, &map);
if (invalid) {
gst_buffer_unref (dvdspu->partial_spu);
dvdspu->partial_spu = NULL;
} else if (ptr == end) {
GST_DEBUG_OBJECT (dvdspu,
"Have complete PGS packet of size %" G_GSIZE_FORMAT ". Enqueueing.",
map.size);
submit_new_spu_packet (dvdspu, dvdspu->partial_spu);
dvdspu->partial_spu = NULL;
}
break;
}
default:
GST_ERROR_OBJECT (dvdspu, "Input type not configured before SPU passing");
goto caps_not_set;
}
done:
DVD_SPU_UNLOCK (dvdspu);
return ret;
/* ERRORS */
caps_not_set:
{
GST_ELEMENT_ERROR (dvdspu, RESOURCE, NO_SPACE_LEFT,
(_("Subpicture format was not configured before data flow")), (NULL));
ret = GST_FLOW_ERROR;
goto done;
}
}
static GstFlowReturn
gst_jasper_dec_chain (GstPad * pad, GstBuffer * buf)
{
GstJasperDec *dec;
GstFlowReturn ret = GST_FLOW_OK;
GstClockTime ts;
GstBuffer *outbuf = NULL;
guint8 *data;
guint size;
gboolean decode;
dec = GST_JASPER_DEC (GST_PAD_PARENT (pad));
if (dec->fmt < 0)
goto not_negotiated;
ts = GST_BUFFER_TIMESTAMP (buf);
GST_LOG_OBJECT (dec, "buffer with ts: %" GST_TIME_FORMAT, GST_TIME_ARGS (ts));
if (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT))
dec->discont = TRUE;
decode = gst_jasper_dec_do_qos (dec, ts);
/* FIXME: do clipping */
if (G_UNLIKELY (!decode)) {
dec->discont = TRUE;
goto done;
}
/* strip possible prefix */
if (dec->strip) {
GstBuffer *tmp;
tmp = gst_buffer_create_sub (buf, dec->strip,
GST_BUFFER_SIZE (buf) - dec->strip);
gst_buffer_copy_metadata (tmp, buf, GST_BUFFER_COPY_TIMESTAMPS);
gst_buffer_unref (buf);
buf = tmp;
}
/* preprend possible codec_data */
if (dec->codec_data) {
GstBuffer *tmp;
tmp =
gst_buffer_append (gst_buffer_ref (dec->codec_data),
gst_buffer_ref (buf));
gst_buffer_copy_metadata (tmp, buf, GST_BUFFER_COPY_TIMESTAMPS);
gst_buffer_unref (buf);
buf = tmp;
}
/* now really feed the data to decoder */
data = GST_BUFFER_DATA (buf);
size = GST_BUFFER_SIZE (buf);
ret = gst_jasper_dec_get_picture (dec, data, size, &outbuf);
if (outbuf) {
gst_buffer_copy_metadata (outbuf, buf, GST_BUFFER_COPY_TIMESTAMPS);
if (dec->discont) {
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
dec->discont = FALSE;
}
if (ret == GST_FLOW_OK)
ret = gst_pad_push (dec->srcpad, outbuf);
else
gst_buffer_unref (outbuf);
}
done:
gst_buffer_unref (buf);
return ret;
/* ERRORS */
not_negotiated:
{
GST_ELEMENT_ERROR (dec, CORE, NEGOTIATION, (NULL),
("format wasn't negotiated before chain function"));
ret = GST_FLOW_NOT_NEGOTIATED;
goto done;
}
}
static GstFlowReturn
gst_rtp_klv_pay_handle_buffer (GstRTPBasePayload * basepayload, GstBuffer * buf)
{
GstFlowReturn ret = GST_FLOW_OK;
GstBufferList *list = NULL;
GstRtpKlvPay *pay;
GstMapInfo map;
GstBuffer *outbuf = NULL;
gsize offset;
guint mtu, rtp_header_size, max_payload_size;
pay = GST_RTP_KLV_PAY (basepayload);
mtu = GST_RTP_BASE_PAYLOAD_MTU (basepayload);
rtp_header_size = gst_rtp_buffer_calc_header_len (0);
max_payload_size = mtu - rtp_header_size;
gst_buffer_map (buf, &map, GST_MAP_READ);
if (map.size == 0)
goto done;
/* KLV coding shall use and only use a fixed 16-byte SMPTE-administered
* Universal Label, according to SMPTE 298M as Key (Rec. ITU R-BT.1653-1) */
if (map.size < 16 || GST_READ_UINT32_BE (map.data) != 0x060E2B34)
goto bad_input;
if (map.size > max_payload_size)
list = gst_buffer_list_new ();
GST_LOG_OBJECT (pay, "%" G_GSIZE_FORMAT " bytes of data to payload",
map.size);
offset = 0;
while (offset < map.size) {
GstBuffer *payloadbuf;
GstRTPBuffer rtp = { NULL };
guint payload_size;
guint bytes_left;
bytes_left = map.size - offset;
payload_size = MIN (bytes_left, max_payload_size);
outbuf = gst_rtp_buffer_new_allocate (0, 0, 0);
if (payload_size == bytes_left) {
GST_LOG_OBJECT (pay, "last packet of KLV unit");
gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
gst_rtp_buffer_set_marker (&rtp, 1);
gst_rtp_buffer_unmap (&rtp);
}
GST_LOG_OBJECT (pay, "packet with payload size %u", payload_size);
gst_rtp_copy_meta (GST_ELEMENT_CAST (pay), outbuf, buf, 0);
payloadbuf = gst_buffer_copy_region (buf, GST_BUFFER_COPY_MEMORY,
offset, payload_size);
/* join rtp header + payload memory parts */
outbuf = gst_buffer_append (outbuf, payloadbuf);
GST_BUFFER_PTS (outbuf) = GST_BUFFER_PTS (buf);
GST_BUFFER_DTS (outbuf) = GST_BUFFER_DTS (buf);
/* and add to list */
if (list != NULL)
gst_buffer_list_insert (list, -1, outbuf);
offset += payload_size;
}
done:
gst_buffer_unmap (buf, &map);
gst_buffer_unref (buf);
if (list != NULL)
ret = gst_rtp_base_payload_push_list (basepayload, list);
else if (outbuf != NULL)
ret = gst_rtp_base_payload_push (basepayload, outbuf);
return ret;
/* ERRORS */
bad_input:
{
GST_ERROR_OBJECT (pay, "Input doesn't look like a KLV packet, ignoring");
goto done;
}
}
