static VALUE
segment_done_initialize(VALUE self, VALUE src, VALUE format, VALUE position)
{
G_INITIALIZE(self, gst_message_new_segment_done(RVAL2GST_OBJ(src),
RVAL2GST_FORMAT(format),
NUM2LL(position)));
return Qnil;
}
static void
gst_nuv_demux_send_eos (GstNuvDemux * nuv)
{
gst_element_post_message (GST_ELEMENT (nuv),
gst_message_new_segment_done (GST_OBJECT (nuv), GST_FORMAT_TIME, -1));
if (nuv->src_video_pad)
gst_pad_push_event (nuv->src_video_pad, gst_event_new_eos ());
if (nuv->src_audio_pad)
gst_pad_push_event (nuv->src_audio_pad, gst_event_new_eos ());
}
static void
gst_aiff_parse_loop (GstPad * pad)
{
GstFlowReturn ret;
GstAiffParse *aiff = GST_AIFF_PARSE (GST_PAD_PARENT (pad));
GST_LOG_OBJECT (aiff, "process data");
switch (aiff->state) {
case AIFF_PARSE_START:
GST_INFO_OBJECT (aiff, "AIFF_PARSE_START");
if ((ret = gst_aiff_parse_stream_init (aiff)) != GST_FLOW_OK)
goto pause;
aiff->state = AIFF_PARSE_HEADER;
/* fall-through */
case AIFF_PARSE_HEADER:
GST_INFO_OBJECT (aiff, "AIFF_PARSE_HEADER");
if ((ret = gst_aiff_parse_stream_headers (aiff)) != GST_FLOW_OK)
goto pause;
aiff->state = AIFF_PARSE_DATA;
GST_INFO_OBJECT (aiff, "AIFF_PARSE_DATA");
/* fall-through */
case AIFF_PARSE_DATA:
if ((ret = gst_aiff_parse_stream_data (aiff)) != GST_FLOW_OK)
goto pause;
break;
default:
g_assert_not_reached ();
}
return;
/* ERRORS */
pause:
{
const gchar *reason = gst_flow_get_name (ret);
GST_DEBUG_OBJECT (aiff, "pausing task, reason %s", reason);
aiff->segment_running = FALSE;
gst_pad_pause_task (pad);
if (ret == GST_FLOW_UNEXPECTED) {
/* perform EOS logic */
if (aiff->segment.flags & GST_SEEK_FLAG_SEGMENT) {
GstClockTime stop;
if ((stop = aiff->segment.stop) == -1)
stop = aiff->segment.duration;
gst_element_post_message (GST_ELEMENT_CAST (aiff),
gst_message_new_segment_done (GST_OBJECT_CAST (aiff),
aiff->segment.format, stop));
} else {
gst_pad_push_event (aiff->srcpad, gst_event_new_eos ());
}
} else if (ret < GST_FLOW_UNEXPECTED || ret == GST_FLOW_NOT_LINKED) {
/* for fatal errors we post an error message, post the error
* first so the app knows about the error first. */
GST_ELEMENT_ERROR (aiff, STREAM, FAILED,
(_("Internal data flow error.")),
("streaming task paused, reason %s (%d)", reason, ret));
gst_pad_push_event (aiff->srcpad, gst_event_new_eos ());
}
return;
}
}
static void
gst_musepackdec_loop (GstPad * sinkpad)
{
GstMusepackDec *musepackdec;
GstFlowReturn flow;
GstBuffer *out;
GstMapInfo info;
mpc_frame_info frame;
mpc_status err;
gint num_samples, samplerate, bitspersample;
musepackdec = GST_MUSEPACK_DEC (GST_PAD_PARENT (sinkpad));
samplerate = g_atomic_int_get (&musepackdec->rate);
if (samplerate == 0) {
if (!gst_musepack_stream_init (musepackdec))
goto pause_task;
gst_musepackdec_send_newsegment (musepackdec);
samplerate = g_atomic_int_get (&musepackdec->rate);
}
bitspersample = g_atomic_int_get (&musepackdec->bps);
out = gst_buffer_new_allocate (NULL, MPC_DECODER_BUFFER_LENGTH * 4, NULL);
gst_buffer_map (out, &info, GST_MAP_READWRITE);
frame.buffer = (MPC_SAMPLE_FORMAT *) info.data;
err = mpc_demux_decode (musepackdec->d, &frame);
gst_buffer_unmap (out, &info);
if (err != MPC_STATUS_OK) {
GST_ERROR_OBJECT (musepackdec, "Failed to decode sample");
GST_ELEMENT_ERROR (musepackdec, STREAM, DECODE, (NULL), (NULL));
goto pause_task;
} else if (frame.bits == -1) {
goto eos_and_pause;
}
num_samples = frame.samples;
gst_buffer_set_size (out, num_samples * bitspersample);
GST_BUFFER_OFFSET (out) = musepackdec->segment.position;
GST_BUFFER_PTS (out) =
gst_util_uint64_scale_int (musepackdec->segment.position,
GST_SECOND, samplerate);
GST_BUFFER_DURATION (out) =
gst_util_uint64_scale_int (num_samples, GST_SECOND, samplerate);
musepackdec->segment.position += num_samples;
GST_LOG_OBJECT (musepackdec, "Pushing buffer, timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (out)));
flow = gst_pad_push (musepackdec->srcpad, out);
if (flow != GST_FLOW_OK) {
GST_DEBUG_OBJECT (musepackdec, "Flow: %s", gst_flow_get_name (flow));
goto pause_task;
}
/* check if we're at the end of a configured segment */
if (musepackdec->segment.stop != -1 &&
musepackdec->segment.position >= musepackdec->segment.stop) {
gint64 stop_time;
GST_DEBUG_OBJECT (musepackdec, "Reached end of configured segment");
if ((musepackdec->segment.flags & GST_SEEK_FLAG_SEGMENT) == 0)
goto eos_and_pause;
GST_DEBUG_OBJECT (musepackdec, "Posting SEGMENT_DONE message");
stop_time = gst_util_uint64_scale_int (musepackdec->segment.stop,
GST_SECOND, samplerate);
gst_element_post_message (GST_ELEMENT (musepackdec),
gst_message_new_segment_done (GST_OBJECT (musepackdec),
GST_FORMAT_TIME, stop_time));
gst_pad_push_event (musepackdec->srcpad,
gst_event_new_segment_done (GST_FORMAT_TIME, stop_time));
goto pause_task;
}
return;
eos_and_pause:
{
GST_DEBUG_OBJECT (musepackdec, "sending EOS event");
gst_pad_push_event (musepackdec->srcpad, gst_event_new_eos ());
/* fall through to pause */
}
pause_task:
{
GST_DEBUG_OBJECT (musepackdec, "Pausing task");
gst_pad_pause_task (sinkpad);
return;
}
}
static void
gst_type_find_element_loop (GstPad * pad)
{
GstTypeFindElement *typefind;
GstFlowReturn ret = GST_FLOW_OK;
typefind = GST_TYPE_FIND_ELEMENT (GST_PAD_PARENT (pad));
if (typefind->need_stream_start) {
gchar *stream_id;
GstEvent *event;
stream_id = gst_pad_create_stream_id (typefind->src,
GST_ELEMENT_CAST (typefind), NULL);
GST_DEBUG_OBJECT (typefind, "Pushing STREAM_START");
event = gst_event_new_stream_start (stream_id);
gst_event_set_group_id (event, gst_util_group_id_next ());
gst_pad_push_event (typefind->src, event);
typefind->need_stream_start = FALSE;
g_free (stream_id);
}
if (typefind->mode == MODE_TYPEFIND) {
GstPad *peer = NULL;
GstCaps *found_caps = NULL;
GstTypeFindProbability probability = GST_TYPE_FIND_NONE;
GST_DEBUG_OBJECT (typefind, "find type in pull mode");
GST_OBJECT_LOCK (typefind);
if (typefind->force_caps) {
found_caps = gst_caps_ref (typefind->force_caps);
probability = GST_TYPE_FIND_MAXIMUM;
}
GST_OBJECT_UNLOCK (typefind);
if (!found_caps) {
peer = gst_pad_get_peer (pad);
if (peer) {
gint64 size;
gchar *ext;
if (!gst_pad_query_duration (peer, GST_FORMAT_BYTES, &size)) {
GST_WARNING_OBJECT (typefind, "Could not query upstream length!");
gst_object_unref (peer);
ret = GST_FLOW_ERROR;
goto pause;
}
/* the size if 0, we cannot continue */
if (size == 0) {
/* keep message in sync with message in sink event handler */
GST_ELEMENT_ERROR (typefind, STREAM, TYPE_NOT_FOUND,
(_("Stream contains no data.")), ("Can't typefind empty stream"));
gst_object_unref (peer);
ret = GST_FLOW_ERROR;
goto pause;
}
ext = gst_type_find_get_extension (typefind, pad);
found_caps =
gst_type_find_helper_get_range (GST_OBJECT_CAST (peer),
GST_OBJECT_PARENT (peer),
(GstTypeFindHelperGetRangeFunction) (GST_PAD_GETRANGEFUNC (peer)),
(guint64) size, ext, &probability);
g_free (ext);
GST_DEBUG ("Found caps %" GST_PTR_FORMAT, found_caps);
gst_object_unref (peer);
}
}
if (!found_caps || probability < typefind->min_probability) {
GST_DEBUG ("Trying to guess using extension");
gst_caps_replace (&found_caps, NULL);
found_caps =
gst_type_find_guess_by_extension (typefind, pad, &probability);
}
if (!found_caps || probability < typefind->min_probability) {
GST_ELEMENT_ERROR (typefind, STREAM, TYPE_NOT_FOUND, (NULL), (NULL));
gst_caps_replace (&found_caps, NULL);
ret = GST_FLOW_ERROR;
goto pause;
}
GST_DEBUG ("Emiting found caps %" GST_PTR_FORMAT, found_caps);
gst_type_find_element_emit_have_type (typefind, probability, found_caps);
typefind->mode = MODE_NORMAL;
gst_caps_unref (found_caps);
} else if (typefind->mode == MODE_NORMAL) {
GstBuffer *outbuf = NULL;
if (typefind->need_segment) {
typefind->need_segment = FALSE;
gst_pad_push_event (typefind->src,
gst_event_new_segment (&typefind->segment));
}
/* Pull 4k blocks and send downstream */
ret = gst_pad_pull_range (typefind->sink, typefind->offset, 4096, &outbuf);
if (ret != GST_FLOW_OK)
goto pause;
typefind->offset += gst_buffer_get_size (outbuf);
ret = gst_pad_push (typefind->src, outbuf);
if (ret != GST_FLOW_OK)
goto pause;
} else {
/* Error out */
ret = GST_FLOW_ERROR;
goto pause;
}
return;
pause:
{
const gchar *reason = gst_flow_get_name (ret);
gboolean push_eos = FALSE;
GST_LOG_OBJECT (typefind, "pausing task, reason %s", reason);
gst_pad_pause_task (typefind->sink);
if (ret == GST_FLOW_EOS) {
/* perform EOS logic */
if (typefind->segment.flags & GST_SEGMENT_FLAG_SEGMENT) {
gint64 stop;
/* for segment playback we need to post when (in stream time)
* we stopped, this is either stop (when set) or the duration. */
if ((stop = typefind->segment.stop) == -1)
stop = typefind->offset;
GST_LOG_OBJECT (typefind, "Sending segment done, at end of segment");
gst_element_post_message (GST_ELEMENT (typefind),
gst_message_new_segment_done (GST_OBJECT (typefind),
GST_FORMAT_BYTES, stop));
gst_pad_push_event (typefind->src,
gst_event_new_segment_done (GST_FORMAT_BYTES, stop));
} else {
push_eos = TRUE;
}
} else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_EOS) {
/* for fatal errors we post an error message */
GST_ELEMENT_ERROR (typefind, STREAM, FAILED, (NULL),
("stream stopped, reason %s", reason));
push_eos = TRUE;
}
if (push_eos) {
/* send EOS, and prevent hanging if no streams yet */
GST_LOG_OBJECT (typefind, "Sending EOS, at end of stream");
gst_pad_push_event (typefind->src, gst_event_new_eos ());
}
return;
}
}
static void
gst_raw_parse_loop (GstElement * element)
{
GstRawParse *rp = GST_RAW_PARSE (element);
GstRawParseClass *rp_class = GST_RAW_PARSE_GET_CLASS (rp);
GstFlowReturn ret;
GstBuffer *buffer;
gint size;
if (!gst_raw_parse_set_src_caps (rp))
goto no_caps;
if (rp->start_segment) {
GST_DEBUG_OBJECT (rp, "sending start segment");
gst_pad_push_event (rp->srcpad, rp->start_segment);
rp->start_segment = NULL;
}
if (rp_class->multiple_frames_per_buffer && rp->framesize < 4096)
size = 4096 - (4096 % rp->framesize);
else
size = rp->framesize;
if (rp->segment.rate >= 0) {
if (rp->offset + size > rp->upstream_length) {
GstFormat fmt = GST_FORMAT_BYTES;
if (!gst_pad_peer_query_duration (rp->sinkpad, fmt, &rp->upstream_length)) {
GST_WARNING_OBJECT (rp,
"Could not get upstream duration, trying to pull frame by frame");
size = rp->framesize;
} else if (rp->upstream_length < rp->offset + rp->framesize) {
ret = GST_FLOW_EOS;
goto pause;
} else if (rp->offset + size > rp->upstream_length) {
size = rp->upstream_length - rp->offset;
size -= size % rp->framesize;
}
}
} else {
if (rp->offset == 0) {
ret = GST_FLOW_EOS;
goto pause;
} else if (rp->offset < size) {
size -= rp->offset;
}
rp->offset -= size;
}
buffer = NULL;
ret = gst_pad_pull_range (rp->sinkpad, rp->offset, size, &buffer);
if (ret != GST_FLOW_OK) {
GST_DEBUG_OBJECT (rp, "pull_range (%" G_GINT64_FORMAT ", %u) "
"failed, flow: %s", rp->offset, size, gst_flow_get_name (ret));
buffer = NULL;
goto pause;
}
if (gst_buffer_get_size (buffer) < size) {
GST_DEBUG_OBJECT (rp, "Short read at offset %" G_GINT64_FORMAT
", got only %" G_GSIZE_FORMAT " of %u bytes", rp->offset,
gst_buffer_get_size (buffer), size);
if (size > rp->framesize) {
gst_buffer_set_size (buffer, gst_buffer_get_size (buffer) -
gst_buffer_get_size (buffer) % rp->framesize);
} else {
gst_buffer_unref (buffer);
buffer = NULL;
ret = GST_FLOW_EOS;
goto pause;
}
}
ret = gst_raw_parse_push_buffer (rp, buffer);
if (ret != GST_FLOW_OK)
goto pause;
return;
/* ERRORS */
no_caps:
{
GST_ERROR_OBJECT (rp, "could not negotiate caps");
ret = GST_FLOW_NOT_NEGOTIATED;
goto pause;
}
pause:
{
const gchar *reason = gst_flow_get_name (ret);
GST_LOG_OBJECT (rp, "pausing task, reason %s", reason);
gst_pad_pause_task (rp->sinkpad);
if (ret == GST_FLOW_EOS) {
if (rp->segment.flags & GST_SEEK_FLAG_SEGMENT) {
GstClockTime stop;
GST_LOG_OBJECT (rp, "Sending segment done");
if ((stop = rp->segment.stop) == -1)
stop = rp->segment.duration;
gst_element_post_message (GST_ELEMENT_CAST (rp),
gst_message_new_segment_done (GST_OBJECT_CAST (rp),
rp->segment.format, stop));
gst_pad_push_event (rp->srcpad,
gst_event_new_segment_done (rp->segment.format, stop));
} else {
GST_LOG_OBJECT (rp, "Sending EOS, at end of stream");
gst_pad_push_event (rp->srcpad, gst_event_new_eos ());
}
} else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_EOS) {
GST_ELEMENT_ERROR (rp, STREAM, FAILED,
("Internal data stream error."),
("stream stopped, reason %s", reason));
gst_pad_push_event (rp->srcpad, gst_event_new_eos ());
}
return;
}
}
static void
gst_musepackdec_loop (GstPad * sinkpad)
{
GstMusepackDec *musepackdec;
GstFlowReturn flow;
GstBuffer *out;
#ifdef MPC_IS_OLD_API
guint32 update_acc, update_bits;
#else
mpc_frame_info frame;
mpc_status err;
#endif
gint num_samples, samplerate, bitspersample;
musepackdec = GST_MUSEPACK_DEC (GST_PAD_PARENT (sinkpad));
samplerate = g_atomic_int_get (&musepackdec->rate);
if (samplerate == 0) {
if (!gst_musepack_stream_init (musepackdec))
goto pause_task;
gst_musepackdec_send_newsegment (musepackdec);
samplerate = g_atomic_int_get (&musepackdec->rate);
}
bitspersample = g_atomic_int_get (&musepackdec->bps);
flow = gst_pad_alloc_buffer_and_set_caps (musepackdec->srcpad, -1,
MPC_DECODER_BUFFER_LENGTH * 4, GST_PAD_CAPS (musepackdec->srcpad), &out);
if (flow != GST_FLOW_OK) {
GST_DEBUG_OBJECT (musepackdec, "Flow: %s", gst_flow_get_name (flow));
goto pause_task;
}
#ifdef MPC_IS_OLD_API
num_samples = mpc_decoder_decode (musepackdec->d,
(MPC_SAMPLE_FORMAT *) GST_BUFFER_DATA (out), &update_acc, &update_bits);
if (num_samples < 0) {
GST_ERROR_OBJECT (musepackdec, "Failed to decode sample");
GST_ELEMENT_ERROR (musepackdec, STREAM, DECODE, (NULL), (NULL));
goto pause_task;
} else if (num_samples == 0) {
goto eos_and_pause;
}
#else
frame.buffer = (MPC_SAMPLE_FORMAT *) GST_BUFFER_DATA (out);
err = mpc_demux_decode (musepackdec->d, &frame);
if (err != MPC_STATUS_OK) {
GST_ERROR_OBJECT (musepackdec, "Failed to decode sample");
GST_ELEMENT_ERROR (musepackdec, STREAM, DECODE, (NULL), (NULL));
goto pause_task;
} else if (frame.bits == -1) {
goto eos_and_pause;
}
num_samples = frame.samples;
#endif
GST_BUFFER_SIZE (out) = num_samples * bitspersample;
GST_BUFFER_OFFSET (out) = musepackdec->segment.last_stop;
GST_BUFFER_TIMESTAMP (out) =
gst_util_uint64_scale_int (musepackdec->segment.last_stop,
GST_SECOND, samplerate);
GST_BUFFER_DURATION (out) =
gst_util_uint64_scale_int (num_samples, GST_SECOND, samplerate);
musepackdec->segment.last_stop += num_samples;
GST_LOG_OBJECT (musepackdec, "Pushing buffer, timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (out)));
flow = gst_pad_push (musepackdec->srcpad, out);
if (flow != GST_FLOW_OK) {
GST_DEBUG_OBJECT (musepackdec, "Flow: %s", gst_flow_get_name (flow));
goto pause_task;
}
/* check if we're at the end of a configured segment */
if (musepackdec->segment.stop != -1 &&
musepackdec->segment.last_stop >= musepackdec->segment.stop) {
gint64 stop_time;
GST_DEBUG_OBJECT (musepackdec, "Reached end of configured segment");
if ((musepackdec->segment.flags & GST_SEEK_FLAG_SEGMENT) == 0)
goto eos_and_pause;
GST_DEBUG_OBJECT (musepackdec, "Posting SEGMENT_DONE message");
stop_time = gst_util_uint64_scale_int (musepackdec->segment.stop,
GST_SECOND, samplerate);
gst_element_post_message (GST_ELEMENT (musepackdec),
gst_message_new_segment_done (GST_OBJECT (musepackdec),
GST_FORMAT_TIME, stop_time));
goto pause_task;
}
return;
eos_and_pause:
{
GST_DEBUG_OBJECT (musepackdec, "sending EOS event");
gst_pad_push_event (musepackdec->srcpad, gst_event_new_eos ());
/* fall through to pause */
}
pause_task:
{
GST_DEBUG_OBJECT (musepackdec, "Pausing task");
gst_pad_pause_task (sinkpad);
return;
}
}
SegmentDoneMessagePtr SegmentDoneMessage::create(const ObjectPtr & source, Format format, qint64 position)
{
GstMessage *m = gst_message_new_segment_done(source, static_cast<GstFormat>(format), position);
return SegmentDoneMessagePtr::wrap(m, false);
}
static void
gst_real_audio_demux_loop (GstRealAudioDemux * demux)
{
GstFlowReturn ret;
GstBuffer *buf;
guint bytes_needed;
/* check how much data we need */
switch (demux->state) {
case REAL_AUDIO_DEMUX_STATE_MARKER:
bytes_needed = 6 + 16; /* 16 are beginning of header */
break;
case REAL_AUDIO_DEMUX_STATE_HEADER:
if (!gst_real_audio_demux_get_data_offset_from_header (demux))
goto parse_header_error;
bytes_needed = demux->data_offset - (6 + 16);
break;
case REAL_AUDIO_DEMUX_STATE_DATA:
if (demux->packet_size > 0) {
/* TODO: should probably take into account width/height as well? */
bytes_needed = demux->packet_size;
} else {
bytes_needed = 1024;
}
break;
default:
g_return_if_reached ();
}
/* now get the data */
GST_LOG_OBJECT (demux, "getting data: %5u bytes @ %8" G_GINT64_MODIFIER "u",
bytes_needed, demux->offset);
if (demux->upstream_size > 0 && demux->offset >= demux->upstream_size)
goto eos;
ret = gst_pad_pull_range (demux->sinkpad, demux->offset, bytes_needed, &buf);
if (ret != GST_FLOW_OK)
goto pull_range_error;
if (GST_BUFFER_SIZE (buf) != bytes_needed)
goto pull_range_short_read;
ret = gst_real_audio_demux_handle_buffer (demux, buf);
if (ret != GST_FLOW_OK)
goto handle_flow_error;
/* TODO: increase this in chain function too (for timestamps)? */
demux->offset += bytes_needed;
/* check for the end of the segment */
if (demux->segment.stop != -1 && demux->segment.last_stop != -1 &&
demux->segment.last_stop > demux->segment.stop) {
GST_DEBUG_OBJECT (demux, "reached end of segment");
goto eos;
}
return;
/* ERRORS */
parse_header_error:
{
GST_ELEMENT_ERROR (demux, STREAM, DECODE, (NULL), (NULL));
goto pause_task;
}
handle_flow_error:
{
GST_WARNING_OBJECT (demux, "handle_buf flow: %s", gst_flow_get_name (ret));
goto pause_task;
}
pull_range_error:
{
GST_WARNING_OBJECT (demux, "pull range flow: %s", gst_flow_get_name (ret));
goto pause_task;
}
pull_range_short_read:
{
GST_WARNING_OBJECT (demux, "pull range short read: wanted %u bytes, but "
"got only %u bytes", bytes_needed, GST_BUFFER_SIZE (buf));
gst_buffer_unref (buf);
goto eos;
}
eos:
{
if (demux->state != REAL_AUDIO_DEMUX_STATE_DATA) {
GST_WARNING_OBJECT (demux, "reached EOS before finished parsing header");
goto parse_header_error;
}
GST_INFO_OBJECT (demux, "EOS");
if ((demux->segment.flags & GST_SEEK_FLAG_SEGMENT) != 0) {
gint64 stop;
/* for segment playback we need to post when (in stream time)
* we stopped, this is either stop (when set) or the duration. */
if ((stop = demux->segment.stop) == -1)
stop = demux->segment.duration;
GST_DEBUG_OBJECT (demux, "sending segment done, at end of segment");
gst_element_post_message (GST_ELEMENT (demux),
gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME,
stop));
} else {
/* normal playback, send EOS event downstream */
GST_DEBUG_OBJECT (demux, "sending EOS event, at end of stream");
gst_pad_push_event (demux->srcpad, gst_event_new_eos ());
}
goto pause_task;
}
pause_task:
{
demux->segment_running = FALSE;
gst_pad_pause_task (demux->sinkpad);
GST_DEBUG_OBJECT (demux, "pausing task");
return;
}
}
static void
gst_wavpack_parse_loop (GstElement * element)
{
GstWavpackParse *parse = GST_WAVPACK_PARSE (element);
GstFlowReturn flow_ret;
WavpackHeader header = { {0,}, 0, };
GstBuffer *buf = NULL;
flow_ret = gst_wavpack_parse_resync_loop (parse, &header);
if (flow_ret != GST_FLOW_OK)
goto pause;
GST_LOG_OBJECT (parse, "Read header at offset %" G_GINT64_FORMAT
": chunk size = %u+8", parse->current_offset, header.ckSize);
buf = gst_wavpack_parse_pull_buffer (parse, parse->current_offset,
header.ckSize + 8, &flow_ret);
if (flow_ret != GST_FLOW_OK)
goto pause;
if (parse->srcpad == NULL) {
if (!gst_wavpack_parse_create_src_pad (parse, buf, &header)) {
GST_ERROR_OBJECT (parse, "Failed to create src pad");
flow_ret = GST_FLOW_ERROR;
goto pause;
}
}
if (header.flags & INITIAL_BLOCK)
gst_wavpack_parse_index_append_entry (parse, parse->current_offset,
header.block_index, header.block_samples);
flow_ret = gst_wavpack_parse_push_buffer (parse, buf, &header);
if (flow_ret != GST_FLOW_OK)
goto pause;
return;
pause:
{
const gchar *reason = gst_flow_get_name (flow_ret);
GST_LOG_OBJECT (parse, "pausing task, reason %s", reason);
gst_pad_pause_task (parse->sinkpad);
if (GST_FLOW_IS_FATAL (flow_ret) || flow_ret == GST_FLOW_NOT_LINKED) {
if (flow_ret == GST_FLOW_UNEXPECTED && parse->srcpad) {
if (parse->segment.flags & GST_SEEK_FLAG_SEGMENT) {
GstClockTime stop;
GST_LOG_OBJECT (parse, "Sending segment done");
if ((stop = parse->segment.stop) == -1)
stop = parse->segment.duration;
gst_element_post_message (GST_ELEMENT_CAST (parse),
gst_message_new_segment_done (GST_OBJECT_CAST (parse),
parse->segment.format, stop));
} else {
GST_LOG_OBJECT (parse, "Sending EOS, at end of stream");
gst_pad_push_event (parse->srcpad, gst_event_new_eos ());
}
} else {
GST_ELEMENT_ERROR (parse, STREAM, FAILED,
(_("Internal data stream error.")),
("stream stopped, reason %s", reason));
if (parse->srcpad)
gst_pad_push_event (parse->srcpad, gst_event_new_eos ());
}
}
return;
}
}
static void
gst_image_freeze_src_loop (GstPad * pad)
{
GstImageFreeze *self = GST_IMAGE_FREEZE (GST_PAD_PARENT (pad));
GstBuffer *buffer;
guint64 offset;
GstClockTime timestamp, timestamp_end;
guint64 cstart, cstop;
gboolean in_seg, eos;
GstFlowReturn flow_ret = GST_FLOW_OK;
g_mutex_lock (&self->lock);
if (!gst_pad_has_current_caps (self->srcpad)) {
GST_ERROR_OBJECT (pad, "Not negotiated yet");
flow_ret = GST_FLOW_NOT_NEGOTIATED;
g_mutex_unlock (&self->lock);
goto pause_task;
}
if (!self->buffer) {
GST_ERROR_OBJECT (pad, "Have no buffer yet");
flow_ret = GST_FLOW_ERROR;
g_mutex_unlock (&self->lock);
goto pause_task;
}
buffer = gst_buffer_ref (self->buffer);
buffer = gst_buffer_make_writable (buffer);
g_mutex_unlock (&self->lock);
if (self->need_segment) {
GstEvent *e;
GST_DEBUG_OBJECT (pad, "Pushing SEGMENT event: %" GST_SEGMENT_FORMAT,
&self->segment);
e = gst_event_new_segment (&self->segment);
g_mutex_lock (&self->lock);
if (self->segment.rate >= 0) {
self->offset =
gst_util_uint64_scale (self->segment.start, self->fps_n,
self->fps_d * GST_SECOND);
} else {
self->offset =
gst_util_uint64_scale (self->segment.stop, self->fps_n,
self->fps_d * GST_SECOND);
}
g_mutex_unlock (&self->lock);
self->need_segment = FALSE;
gst_pad_push_event (self->srcpad, e);
}
g_mutex_lock (&self->lock);
offset = self->offset;
if (self->fps_n != 0) {
timestamp =
gst_util_uint64_scale (offset, self->fps_d * GST_SECOND, self->fps_n);
timestamp_end =
gst_util_uint64_scale (offset + 1, self->fps_d * GST_SECOND,
self->fps_n);
} else {
timestamp = self->segment.start;
timestamp_end = GST_CLOCK_TIME_NONE;
}
eos = (self->fps_n == 0 && offset > 0) ||
(self->segment.rate >= 0 && self->segment.stop != -1
&& timestamp > self->segment.stop) || (self->segment.rate < 0
&& offset == 0) || (self->segment.rate < 0
&& self->segment.start != -1 && timestamp_end < self->segment.start);
if (self->fps_n == 0 && offset > 0)
in_seg = FALSE;
else
in_seg =
gst_segment_clip (&self->segment, GST_FORMAT_TIME, timestamp,
timestamp_end, &cstart, &cstop);
if (in_seg) {
self->segment.position = cstart;
if (self->segment.rate >= 0)
self->segment.position = cstop;
}
if (self->segment.rate >= 0)
self->offset++;
else
self->offset--;
g_mutex_unlock (&self->lock);
GST_DEBUG_OBJECT (pad, "Handling buffer with timestamp %" GST_TIME_FORMAT,
GST_TIME_ARGS (timestamp));
if (in_seg) {
GST_BUFFER_DTS (buffer) = GST_CLOCK_TIME_NONE;
GST_BUFFER_PTS (buffer) = cstart;
GST_BUFFER_DURATION (buffer) = cstop - cstart;
GST_BUFFER_OFFSET (buffer) = offset;
GST_BUFFER_OFFSET_END (buffer) = offset + 1;
flow_ret = gst_pad_push (self->srcpad, buffer);
GST_DEBUG_OBJECT (pad, "Pushing buffer resulted in %s",
gst_flow_get_name (flow_ret));
if (flow_ret != GST_FLOW_OK)
goto pause_task;
} else {
gst_buffer_unref (buffer);
}
if (eos) {
flow_ret = GST_FLOW_EOS;
goto pause_task;
}
return;
pause_task:
{
const gchar *reason = gst_flow_get_name (flow_ret);
GST_LOG_OBJECT (self, "pausing task, reason %s", reason);
gst_pad_pause_task (pad);
if (flow_ret == GST_FLOW_EOS) {
if ((self->segment.flags & GST_SEEK_FLAG_SEGMENT)) {
GstMessage *m;
GstEvent *e;
GST_DEBUG_OBJECT (pad, "Sending segment done at end of segment");
if (self->segment.rate >= 0) {
m = gst_message_new_segment_done (GST_OBJECT_CAST (self),
GST_FORMAT_TIME, self->segment.stop);
e = gst_event_new_segment_done (GST_FORMAT_TIME, self->segment.stop);
} else {
m = gst_message_new_segment_done (GST_OBJECT_CAST (self),
GST_FORMAT_TIME, self->segment.start);
e = gst_event_new_segment_done (GST_FORMAT_TIME, self->segment.start);
}
gst_element_post_message (GST_ELEMENT_CAST (self), m);
gst_pad_push_event (self->srcpad, e);
} else {
GST_DEBUG_OBJECT (pad, "Sending EOS at end of segment");
gst_pad_push_event (self->srcpad, gst_event_new_eos ());
}
} else if (flow_ret == GST_FLOW_NOT_LINKED || flow_ret < GST_FLOW_EOS) {
GST_ELEMENT_ERROR (self, STREAM, FAILED,
("Internal data stream error."),
("stream stopped, reason %s", reason));
gst_pad_push_event (self->srcpad, gst_event_new_eos ());
}
return;
}
}
