static gboolean
prepare_src_pad (MpegTSBase * base, MpegTSParse2 * parse)
{
GstEvent *event;
gchar *stream_id;
GstCaps *caps;
if (!parse->first)
return TRUE;
/* If there's no packet_size yet, we can't set caps yet */
if (G_UNLIKELY (base->packetizer->packet_size == 0))
return FALSE;
stream_id =
gst_pad_create_stream_id (parse->srcpad, GST_ELEMENT_CAST (base),
"multi-program");
event =
gst_pad_get_sticky_event (parse->parent.sinkpad, GST_EVENT_STREAM_START,
0);
if (event) {
if (gst_event_parse_group_id (event, &parse->group_id))
parse->have_group_id = TRUE;
else
parse->have_group_id = FALSE;
gst_event_unref (event);
} else if (!parse->have_group_id) {
parse->have_group_id = TRUE;
parse->group_id = gst_util_group_id_next ();
}
event = gst_event_new_stream_start (stream_id);
if (parse->have_group_id)
gst_event_set_group_id (event, parse->group_id);
gst_pad_push_event (parse->srcpad, event);
g_free (stream_id);
caps = gst_caps_new_simple ("video/mpegts",
"systemstream", G_TYPE_BOOLEAN, TRUE,
"packetsize", G_TYPE_INT, base->packetizer->packet_size, NULL);
gst_pad_set_caps (parse->srcpad, caps);
gst_caps_unref (caps);
/* If setting output timestamps, ensure that the output segment is TIME */
if (parse->set_timestamps == FALSE || base->segment.format == GST_FORMAT_TIME)
gst_pad_push_event (parse->srcpad, gst_event_new_segment (&base->segment));
else {
GstSegment seg;
gst_segment_init (&seg, GST_FORMAT_TIME);
GST_DEBUG_OBJECT (parse,
"Generating time output segment %" GST_SEGMENT_FORMAT, &seg);
gst_pad_push_event (parse->srcpad, gst_event_new_segment (&seg));
}
parse->first = FALSE;
return TRUE;
}
static GstFlowReturn
gst_dtls_enc_push (GstDtlsEnc * self, GstBuffer * buffer)
{
GstDtlsBase *base = GST_DTLS_BASE (self);
GstEvent *segment_event, *caps_event;
gchar *stream_id;
stream_id = gst_pad_get_stream_id (base->srcpad);
if (stream_id == NULL) {
stream_id = gst_pad_get_stream_id (base->sinkpad);
if (stream_id == NULL) {
stream_id = gst_pad_create_stream_id (base->srcpad,
GST_ELEMENT (base), NULL);
}
gst_pad_push_event (base->srcpad, gst_event_new_stream_start (stream_id));
}
g_free (stream_id);
caps_event = gst_pad_get_sticky_event (base->srcpad, GST_EVENT_CAPS, 0);
if (caps_event == NULL) {
GstCaps *caps = gst_caps_from_string ("application/x-dtls");
caps_event = gst_event_new_caps (caps);
gst_caps_unref (caps);
gst_pad_push_event (base->srcpad, caps_event);
} else {
gst_event_unref (caps_event);
}
segment_event = gst_pad_get_sticky_event (base->srcpad, GST_EVENT_SEGMENT, 0);
if (segment_event == NULL) {
GstSegment *segment = gst_segment_new ();
gst_segment_init (segment, GST_FORMAT_BYTES);
segment_event = gst_event_new_segment (segment);
gst_segment_free (segment);
gst_pad_push_event (base->srcpad, segment_event);
} else {
gst_event_unref (segment_event);
}
GST_OBJECT_LOCK (self);
if (self->src_buffer && self->running_thread == g_thread_self ()) {
g_assert (gst_buffer_get_size (buffer) != 181);
gst_buffer_copy_into (buffer, self->src_buffer, GST_BUFFER_COPY_METADATA, 0,
-1);
}
GST_OBJECT_UNLOCK (self);
return gst_pad_push (base->srcpad, buffer);
}
static gboolean
gst_droidcamsrc_mode_negotiate_pad (GstDroidCamSrcMode * mode, GstPad * pad,
gboolean force)
{
GstDroidCamSrcPad *data = gst_pad_get_element_private (pad);
/* take pad lock */
g_mutex_lock (&data->lock);
if (!force) {
if (!gst_pad_check_reconfigure (data->pad)) {
g_mutex_unlock (&data->lock);
return TRUE;
}
}
/*
* stream start
* we must send it before we send our CAPS event
*/
if (G_UNLIKELY (data->open_stream)) {
gchar *stream_id;
GstEvent *event;
stream_id =
gst_pad_create_stream_id (data->pad, GST_ELEMENT_CAST (mode->src),
GST_PAD_NAME (data->pad));
GST_DEBUG_OBJECT (pad, "Pushing STREAM_START for pad");
event = gst_event_new_stream_start (stream_id);
gst_event_set_group_id (event, gst_util_group_id_next ());
if (!gst_pad_push_event (data->pad, event)) {
GST_ERROR_OBJECT (mode->src,
"failed to push STREAM_START event for pad %s",
GST_PAD_NAME (data->pad));
}
g_free (stream_id);
data->open_stream = FALSE;
}
/* negotiate */
if (!data->negotiate (data)) {
GST_ELEMENT_ERROR (mode->src, STREAM, FORMAT, (NULL),
("failed to negotiate %s.", GST_PAD_NAME (data->pad)));
g_mutex_unlock (&data->lock);
return FALSE;
}
/* toss pad queue */
g_queue_foreach (data->queue, (GFunc) gst_buffer_unref, NULL);
g_queue_clear (data->queue);
/* unlock */
g_mutex_unlock (&data->lock);
return TRUE;
}
static gboolean
gst_musepack_stream_init (GstMusepackDec * musepackdec)
{
mpc_streaminfo i;
GstTagList *tags;
GstCaps *caps;
gchar *stream_id;
/* set up reading */
gst_musepack_init_reader (musepackdec->r, musepackdec);
musepackdec->d = mpc_demux_init (musepackdec->r);
if (!musepackdec->d) {
GST_ELEMENT_ERROR (musepackdec, STREAM, WRONG_TYPE, (NULL), (NULL));
return FALSE;
}
mpc_demux_get_info (musepackdec->d, &i);
stream_id = gst_pad_create_stream_id (musepackdec->srcpad,
GST_ELEMENT_CAST (musepackdec), NULL);
gst_pad_push_event (musepackdec->srcpad,
gst_event_new_stream_start (stream_id));
g_free (stream_id);
/* capsnego */
caps = gst_caps_new_simple ("audio/x-raw",
"format", G_TYPE_STRING, GST_MPC_FORMAT,
"layout", G_TYPE_STRING, "interleaved",
"channels", G_TYPE_INT, i.channels,
"rate", G_TYPE_INT, i.sample_freq, NULL);
gst_pad_use_fixed_caps (musepackdec->srcpad);
if (!gst_pad_set_caps (musepackdec->srcpad, caps)) {
GST_ELEMENT_ERROR (musepackdec, CORE, NEGOTIATION, (NULL), (NULL));
return FALSE;
}
g_atomic_int_set (&musepackdec->bps, 4 * i.channels);
g_atomic_int_set (&musepackdec->rate, i.sample_freq);
musepackdec->segment.position = 0;
musepackdec->segment.duration = mpc_streaminfo_get_length_samples (&i);
/* send basic tags */
tags = gst_tag_list_new_empty ();
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_AUDIO_CODEC, "Musepack", NULL);
if (i.encoder[0] != '\0' && i.encoder_version > 0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_ENCODER, i.encoder,
GST_TAG_ENCODER_VERSION, i.encoder_version, NULL);
}
if (i.bitrate > 0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_BITRATE, i.bitrate, NULL);
} else if (i.average_bitrate > 0.0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_BITRATE, (guint) i.average_bitrate, NULL);
}
if (i.gain_title != 0 || i.gain_album != 0) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_TRACK_GAIN, (gdouble) i.gain_title / 100.0,
GST_TAG_ALBUM_GAIN, (gdouble) i.gain_album / 100.0, NULL);
}
if (i.peak_title != 0 && i.peak_title != 32767 &&
i.peak_album != 0 && i.peak_album != 32767) {
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE,
GST_TAG_TRACK_PEAK, (gdouble) i.peak_title / 32767.0,
GST_TAG_ALBUM_PEAK, (gdouble) i.peak_album / 32767.0, NULL);
}
GST_LOG_OBJECT (musepackdec, "Posting tags: %" GST_PTR_FORMAT, tags);
gst_pad_push_event (musepackdec->srcpad, gst_event_new_tag (tags));
return TRUE;
}
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_srtp_dec_push_early_events (GstSrtpDec * filter, GstPad * pad,
GstPad * otherpad, gboolean is_rtcp)
{
GstEvent *otherev, *ev;
ev = gst_pad_get_sticky_event (pad, GST_EVENT_STREAM_START, 0);
if (ev) {
gst_event_unref (ev);
} else {
gchar *new_stream_id;
otherev = gst_pad_get_sticky_event (otherpad, GST_EVENT_STREAM_START, 0);
if (otherev) {
const gchar *other_stream_id;
gst_event_parse_stream_start (otherev, &other_stream_id);
new_stream_id = g_strdup_printf ("%s/%s", other_stream_id,
is_rtcp ? "rtcp" : "rtp");
gst_event_unref (otherev);
} else {
new_stream_id = gst_pad_create_stream_id (pad, GST_ELEMENT (filter),
is_rtcp ? "rtcp" : "rtp");
}
ev = gst_event_new_stream_start (new_stream_id);
g_free (new_stream_id);
gst_pad_push_event (pad, ev);
}
ev = gst_pad_get_sticky_event (pad, GST_EVENT_CAPS, 0);
if (ev) {
gst_event_unref (ev);
} else {
GstCaps *caps;
if (is_rtcp)
caps = gst_caps_new_empty_simple ("application/x-rtcp");
else
caps = gst_caps_new_empty_simple ("application/x-rtp");
gst_pad_set_caps (pad, caps);
gst_caps_unref (caps);
}
ev = gst_pad_get_sticky_event (pad, GST_EVENT_SEGMENT, 0);
if (ev) {
gst_event_unref (ev);
} else {
ev = gst_pad_get_sticky_event (otherpad, GST_EVENT_SEGMENT, 0);
if (ev)
gst_pad_push_event (pad, ev);
}
if (is_rtcp)
filter->rtcp_has_segment = TRUE;
else
filter->rtp_has_segment = TRUE;
}
static GstMultipartPad *
gst_multipart_find_pad_by_mime (GstMultipartDemux * demux, gchar * mime,
gboolean * created)
{
GSList *walk;
walk = demux->srcpads;
while (walk) {
GstMultipartPad *pad = (GstMultipartPad *) walk->data;
if (!strcmp (pad->mime, mime)) {
if (created) {
*created = FALSE;
}
return pad;
}
walk = walk->next;
}
/* pad not found, create it */
{
GstPad *pad;
GstMultipartPad *mppad;
gchar *name;
const gchar *capsname;
GstCaps *caps;
gchar *stream_id;
GstEvent *event;
mppad = g_new0 (GstMultipartPad, 1);
GST_DEBUG_OBJECT (demux, "creating pad with mime: %s", mime);
name = g_strdup_printf ("src_%u", demux->numpads);
pad =
gst_pad_new_from_static_template (&multipart_demux_src_template_factory,
name);
g_free (name);
mppad->pad = pad;
mppad->mime = g_strdup (mime);
mppad->last_ret = GST_FLOW_OK;
mppad->last_ts = GST_CLOCK_TIME_NONE;
mppad->discont = TRUE;
demux->srcpads = g_slist_prepend (demux->srcpads, mppad);
demux->numpads++;
gst_pad_use_fixed_caps (pad);
gst_pad_set_active (pad, TRUE);
/* prepare and send stream-start */
if (!demux->have_group_id) {
event = gst_pad_get_sticky_event (demux->sinkpad,
GST_EVENT_STREAM_START, 0);
if (event) {
demux->have_group_id =
gst_event_parse_group_id (event, &demux->group_id);
gst_event_unref (event);
} else if (!demux->have_group_id) {
demux->have_group_id = TRUE;
demux->group_id = gst_util_group_id_next ();
}
}
stream_id = gst_pad_create_stream_id (pad,
GST_ELEMENT_CAST (demux), demux->mime_type);
event = gst_event_new_stream_start (stream_id);
if (demux->have_group_id)
gst_event_set_group_id (event, demux->group_id);
gst_pad_store_sticky_event (pad, event);
g_free (stream_id);
gst_event_unref (event);
/* take the mime type, convert it to the caps name */
capsname = gst_multipart_demux_get_gstname (demux, mime);
caps = gst_caps_from_string (capsname);
GST_DEBUG_OBJECT (demux, "caps for pad: %s", capsname);
gst_pad_set_caps (pad, caps);
gst_element_add_pad (GST_ELEMENT_CAST (demux), pad);
gst_caps_unref (caps);
if (created) {
*created = TRUE;
}
if (demux->singleStream) {
gst_element_no_more_pads (GST_ELEMENT_CAST (demux));
}
return mppad;
}
}
static GstFlowReturn
gst_real_audio_demux_parse_header (GstRealAudioDemux * demux)
{
const guint8 *data;
gchar *codec_name = NULL;
GstCaps *caps = NULL;
GstEvent *event;
gchar *stream_id;
guint avail;
g_assert (demux->ra_version == 4 || demux->ra_version == 3);
avail = gst_adapter_available (demux->adapter);
if (avail < 16)
return GST_FLOW_OK;
if (!gst_real_audio_demux_get_data_offset_from_header (demux))
return GST_FLOW_ERROR; /* shouldn't happen */
GST_DEBUG_OBJECT (demux, "data_offset = %u", demux->data_offset);
if (avail + 6 < demux->data_offset) {
GST_DEBUG_OBJECT (demux, "Need %u bytes, but only %u available now",
demux->data_offset - 6, avail);
return GST_FLOW_OK;
}
data = gst_adapter_map (demux->adapter, demux->data_offset - 6);
g_assert (data);
switch (demux->ra_version) {
case 3:
demux->fourcc = GST_RM_AUD_14_4;
demux->packet_size = 20;
demux->sample_rate = 8000;
demux->channels = 1;
demux->sample_width = 16;
demux->flavour = 1;
demux->leaf_size = 0;
demux->height = 0;
break;
case 4:
demux->flavour = GST_READ_UINT16_BE (data + 16);
/* demux->frame_size = GST_READ_UINT32_BE (data + 36); */
demux->leaf_size = GST_READ_UINT16_BE (data + 38);
demux->height = GST_READ_UINT16_BE (data + 34);
demux->packet_size = GST_READ_UINT32_BE (data + 18);
demux->sample_rate = GST_READ_UINT16_BE (data + 42);
demux->sample_width = GST_READ_UINT16_BE (data + 46);
demux->channels = GST_READ_UINT16_BE (data + 48);
demux->fourcc = GST_READ_UINT32_LE (data + 56);
demux->pending_tags = gst_rm_utils_read_tags (data + 63,
demux->data_offset - 63, gst_rm_utils_read_string8);
if (demux->pending_tags)
gst_tag_list_set_scope (demux->pending_tags, GST_TAG_SCOPE_GLOBAL);
break;
default:
g_assert_not_reached ();
#if 0
case 5:
demux->flavour = GST_READ_UINT16_BE (data + 16);
/* demux->frame_size = GST_READ_UINT32_BE (data + 36); */
demux->leaf_size = GST_READ_UINT16_BE (data + 38);
demux->height = GST_READ_UINT16_BE (data + 34);
demux->sample_rate = GST_READ_UINT16_BE (data + 48);
demux->sample_width = GST_READ_UINT16_BE (data + 52);
demux->n_channels = GST_READ_UINT16_BE (data + 54);
demux->fourcc = RMDEMUX_FOURCC_GET (data + 60);
break;
#endif
}
GST_INFO_OBJECT (demux, "packet_size = %u", demux->packet_size);
GST_INFO_OBJECT (demux, "sample_rate = %u", demux->sample_rate);
GST_INFO_OBJECT (demux, "sample_width = %u", demux->sample_width);
GST_INFO_OBJECT (demux, "channels = %u", demux->channels);
GST_INFO_OBJECT (demux, "fourcc = '%" GST_FOURCC_FORMAT "' (%08X)",
GST_FOURCC_ARGS (demux->fourcc), demux->fourcc);
switch (demux->fourcc) {
case GST_RM_AUD_14_4:
caps = gst_caps_new_simple ("audio/x-pn-realaudio", "raversion",
G_TYPE_INT, 1, NULL);
demux->byterate_num = 1000;
demux->byterate_denom = 1;
break;
case GST_RM_AUD_28_8:
/* FIXME: needs descrambling */
caps = gst_caps_new_simple ("audio/x-pn-realaudio", "raversion",
G_TYPE_INT, 2, NULL);
break;
case GST_RM_AUD_DNET:
caps = gst_caps_new_simple ("audio/x-ac3", "rate", G_TYPE_INT,
demux->sample_rate, NULL);
if (demux->packet_size == 0 || demux->sample_rate == 0)
goto broken_file;
demux->byterate_num = demux->packet_size * demux->sample_rate;
demux->byterate_denom = 1536;
break;
/* Sipro/ACELP.NET Voice Codec (MIME unknown) */
case GST_RM_AUD_SIPR:
caps = gst_caps_new_empty_simple ("audio/x-sipro");
break;
default:
GST_WARNING_OBJECT (demux, "unknown fourcc %08X", demux->fourcc);
break;
}
if (caps == NULL)
goto unknown_fourcc;
gst_caps_set_simple (caps,
"flavor", G_TYPE_INT, demux->flavour,
"rate", G_TYPE_INT, demux->sample_rate,
"channels", G_TYPE_INT, demux->channels,
"width", G_TYPE_INT, demux->sample_width,
"leaf_size", G_TYPE_INT, demux->leaf_size,
"packet_size", G_TYPE_INT, demux->packet_size,
"height", G_TYPE_INT, demux->height, NULL);
GST_INFO_OBJECT (demux, "Adding source pad, caps %" GST_PTR_FORMAT, caps);
demux->srcpad = gst_pad_new_from_static_template (&src_template, "src");
gst_pad_set_event_function (demux->srcpad,
GST_DEBUG_FUNCPTR (gst_real_audio_demux_src_event));
gst_pad_set_query_function (demux->srcpad,
GST_DEBUG_FUNCPTR (gst_real_audio_demux_src_query));
gst_pad_set_active (demux->srcpad, TRUE);
gst_pad_use_fixed_caps (demux->srcpad);
stream_id =
gst_pad_create_stream_id (demux->srcpad, GST_ELEMENT_CAST (demux), NULL);
event = gst_pad_get_sticky_event (demux->sinkpad, GST_EVENT_STREAM_START, 0);
if (event) {
if (gst_event_parse_group_id (event, &demux->group_id))
demux->have_group_id = TRUE;
else
demux->have_group_id = FALSE;
gst_event_unref (event);
} else if (!demux->have_group_id) {
demux->have_group_id = TRUE;
demux->group_id = gst_util_group_id_next ();
}
event = gst_event_new_stream_start (stream_id);
if (demux->have_group_id)
gst_event_set_group_id (event, demux->group_id);
gst_pad_push_event (demux->srcpad, event);
g_free (stream_id);
gst_pad_set_caps (demux->srcpad, caps);
codec_name = gst_pb_utils_get_codec_description (caps);
gst_caps_unref (caps);
gst_element_add_pad (GST_ELEMENT (demux), demux->srcpad);
if (demux->byterate_num > 0 && demux->byterate_denom > 0) {
GstFormat bformat = GST_FORMAT_BYTES;
gint64 size_bytes = 0;
GST_INFO_OBJECT (demux, "byte rate = %u/%u = %u bytes/sec",
demux->byterate_num, demux->byterate_denom,
demux->byterate_num / demux->byterate_denom);
if (gst_pad_peer_query_duration (demux->sinkpad, bformat, &size_bytes)) {
demux->duration =
gst_real_demux_get_timestamp_from_offset (demux, size_bytes);
demux->upstream_size = size_bytes;
GST_INFO_OBJECT (demux, "upstream_size = %" G_GUINT64_FORMAT,
demux->upstream_size);
GST_INFO_OBJECT (demux, "duration = %" GST_TIME_FORMAT,
GST_TIME_ARGS (demux->duration));
}
}
demux->need_newsegment = TRUE;
if (codec_name) {
if (demux->pending_tags == NULL) {
demux->pending_tags = gst_tag_list_new_empty ();
gst_tag_list_set_scope (demux->pending_tags, GST_TAG_SCOPE_GLOBAL);
}
gst_tag_list_add (demux->pending_tags, GST_TAG_MERGE_REPLACE,
GST_TAG_AUDIO_CODEC, codec_name, NULL);
g_free (codec_name);
}
gst_adapter_unmap (demux->adapter);
gst_adapter_flush (demux->adapter, demux->data_offset - 6);
demux->state = REAL_AUDIO_DEMUX_STATE_DATA;
demux->need_newsegment = TRUE;
return GST_FLOW_OK;
/* ERRORS */
unknown_fourcc:
{
GST_ELEMENT_ERROR (GST_ELEMENT (demux), STREAM, DECODE, (NULL),
("Unknown fourcc '%" GST_FOURCC_FORMAT "'",
GST_FOURCC_ARGS (demux->fourcc)));
return GST_FLOW_ERROR;
}
broken_file:
{
GST_ELEMENT_ERROR (GST_ELEMENT (demux), STREAM, DECODE, (NULL),
("Broken file - invalid sample_rate or other header value"));
return GST_FLOW_ERROR;
}
}
static GstFlowReturn
gst_midi_parse_parse_song (GstMidiParse * midiparse)
{
GstCaps *outcaps;
guint8 *data;
guint size, offset, length;
gchar *stream_id;
GST_DEBUG_OBJECT (midiparse, "Parsing song");
gst_segment_init (&midiparse->segment, GST_FORMAT_TIME);
midiparse->segment.duration = 0;
midiparse->pulse = 0;
size = gst_adapter_available (midiparse->adapter);
data = gst_adapter_take (midiparse->adapter, size);
midiparse->data = data;
midiparse->tempo = DEFAULT_TEMPO;
if (!find_midi_chunk (midiparse, data, size, &offset, &length))
goto invalid_format;
while (length) {
guint consumed;
consumed = gst_midi_parse_chunk (midiparse, &data[offset], length);
if (consumed == 0)
goto short_file;
offset += consumed;
length -= consumed;
}
GST_DEBUG_OBJECT (midiparse, "song duration %" GST_TIME_FORMAT,
GST_TIME_ARGS (midiparse->segment.duration));
stream_id = gst_pad_create_stream_id (midiparse->srcpad, GST_ELEMENT_CAST (midiparse), NULL);
gst_pad_push_event (midiparse->srcpad, gst_event_new_stream_start (stream_id));
g_free (stream_id);
outcaps = gst_pad_get_pad_template_caps (midiparse->srcpad);
gst_pad_set_caps (midiparse->srcpad, outcaps);
gst_caps_unref (outcaps);
midiparse->segment_pending = TRUE;
midiparse->discont = TRUE;
GST_DEBUG_OBJECT (midiparse, "Parsing song done");
return GST_FLOW_OK;
/* ERRORS */
short_file:
{
GST_ERROR_OBJECT (midiparse, "not enough data");
return GST_FLOW_ERROR;
}
invalid_format:
{
GST_ERROR_OBJECT (midiparse, "invalid format");
return GST_FLOW_ERROR;
}
}
static GstFlowReturn
gst_cc_extractor_handle_meta (GstCCExtractor * filter, GstBuffer * buf,
GstVideoCaptionMeta * meta)
{
GstBuffer *outbuf = NULL;
GstEvent *event;
gchar *captionid;
GstFlowReturn flow;
GST_DEBUG_OBJECT (filter, "Handling meta");
/* Check if the meta type matches the configured one */
if (filter->captionpad != NULL && meta->caption_type != filter->caption_type) {
GST_ERROR_OBJECT (filter,
"GstVideoCaptionMeta type changed, Not handled currently");
flow = GST_FLOW_NOT_NEGOTIATED;
goto out;
}
if (filter->captionpad == NULL) {
GstCaps *caption_caps = NULL;
GstEvent *stream_event;
GST_DEBUG_OBJECT (filter, "Creating new caption pad");
switch (meta->caption_type) {
case GST_VIDEO_CAPTION_TYPE_CEA608_RAW:
caption_caps =
gst_caps_from_string ("closedcaption/x-cea-608,format=(string)raw");
break;
case GST_VIDEO_CAPTION_TYPE_CEA608_IN_CEA708_RAW:
caption_caps =
gst_caps_from_string
("closedcaption/x-cea-608,format=(string)cc_data");
break;
case GST_VIDEO_CAPTION_TYPE_CEA708_RAW:
caption_caps =
gst_caps_from_string
("closedcaption/x-cea-708,format=(string)cc_data");
break;
case GST_VIDEO_CAPTION_TYPE_CEA708_CDP:
caption_caps =
gst_caps_from_string ("closedcaption/x-cea-708,format=(string)cdp");
break;
default:
break;
}
if (caption_caps == NULL) {
GST_ERROR_OBJECT (filter, "Unknown/invalid caption type");
return GST_FLOW_NOT_NEGOTIATED;
}
/* Create the caption pad and set the caps */
filter->captionpad =
gst_pad_new_from_static_template (&captiontemplate, "caption");
gst_pad_set_iterate_internal_links_function (filter->sinkpad,
GST_DEBUG_FUNCPTR (gst_cc_extractor_iterate_internal_links));
gst_pad_set_active (filter->captionpad, TRUE);
gst_element_add_pad (GST_ELEMENT (filter), filter->captionpad);
gst_flow_combiner_add_pad (filter->combiner, filter->captionpad);
captionid =
gst_pad_create_stream_id (filter->captionpad, (GstElement *) filter,
"caption");
stream_event = gst_event_new_stream_start (captionid);
g_free (captionid);
/* FIXME : Create a proper stream-id */
if ((event =
gst_pad_get_sticky_event (filter->srcpad, GST_EVENT_STREAM_START,
0))) {
guint group_id;
if (gst_event_parse_group_id (event, &group_id))
gst_event_set_group_id (stream_event, group_id);
gst_event_unref (event);
}
gst_pad_push_event (filter->captionpad, stream_event);
gst_pad_set_caps (filter->captionpad, caption_caps);
gst_caps_unref (caption_caps);
/* Carry over sticky events */
if ((event =
gst_pad_get_sticky_event (filter->srcpad, GST_EVENT_SEGMENT, 0)))
gst_pad_push_event (filter->captionpad, event);
if ((event = gst_pad_get_sticky_event (filter->srcpad, GST_EVENT_TAG, 0)))
gst_pad_push_event (filter->captionpad, event);
filter->caption_type = meta->caption_type;
}
GST_DEBUG_OBJECT (filter,
"Creating new buffer of size %" G_GSIZE_FORMAT " bytes", meta->size);
/* Extract caption data into new buffer with identical buffer timestamps */
outbuf = gst_buffer_new_allocate (NULL, meta->size, NULL);
gst_buffer_fill (outbuf, 0, meta->data, meta->size);
GST_BUFFER_PTS (outbuf) = GST_BUFFER_PTS (buf);
GST_BUFFER_DTS (outbuf) = GST_BUFFER_DTS (buf);
GST_BUFFER_DURATION (outbuf) = GST_BUFFER_DURATION (buf);
/* We don't really care about the flow return */
flow = gst_pad_push (filter->captionpad, outbuf);
out:
/* Set flow return on pad and return combined value */
return gst_flow_combiner_update_pad_flow (filter->combiner,
filter->captionpad, flow);
}
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 (G_UNLIKELY (rp->push_stream_start)) {
gchar *stream_id;
GstEvent *event;
stream_id =
gst_pad_create_stream_id (rp->srcpad, GST_ELEMENT_CAST (rp), NULL);
event = gst_event_new_stream_start (stream_id);
gst_event_set_group_id (event, gst_util_group_id_next ());
GST_DEBUG_OBJECT (rp, "Pushing STREAM_START");
gst_pad_push_event (rp->srcpad, event);
rp->push_stream_start = FALSE;
g_free (stream_id);
}
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;
}
}