static void
dump_pmt (GstMpegtsSection * section, ATS_METADATA* data)
{
const GstMpegtsPMT *pmt = gst_mpegts_section_get_pmt (section);
guint i, len;
ATS_CH_DATA* channel;
channel = ats_metadata_find_channel(data, pmt->program_number);
if (!channel) return;
len = pmt->streams->len;
channel->pids_num = 0;
for (i = 0; i < len; i++) {
const gchar* type;
GstMpegtsPMTStream *stream = g_ptr_array_index (pmt->streams, i);
if (stream->stream_type == 0x86) continue; /* Unknown type */
/* Getting pid's codec type */
type = enum_name (GST_TYPE_MPEGTS_STREAM_TYPE, stream->stream_type);
if (type[0] != 'a' && type[0] != 'v') continue;
channel->pids[channel->pids_num].to_be_analyzed = FALSE;
channel->pids[channel->pids_num].pid = stream->pid;
channel->pids[channel->pids_num].type = stream->stream_type;
channel->pids[channel->pids_num].codec = g_strdup(type);
channel->pids_num++;
}
}
static void
dump_pmt (GstMpegTsSection * section)
{
const GstMpegTsPMT *pmt = gst_mpegts_section_get_pmt (section);
guint i, len;
g_printf (" program_number : 0x%04x\n", section->subtable_extension);
g_printf (" pcr_pid : 0x%04x\n", pmt->pcr_pid);
dump_descriptors (pmt->descriptors, 7);
len = pmt->streams->len;
g_printf (" %d Streams:\n", len);
for (i = 0; i < len; i++) {
GstMpegTsPMTStream *stream = g_ptr_array_index (pmt->streams, i);
g_printf (" pid:0x%04x , stream_type:0x%02x (%s)\n", stream->pid,
stream->stream_type,
enum_name (GST_TYPE_MPEG_TS_STREAM_TYPE, stream->stream_type));
dump_descriptors (stream->descriptors, 9);
}
}
static void
dvb_base_bin_pmt_info_cb (DvbBaseBin * dvbbasebin, GstMpegtsSection * section)
{
const GstMpegtsPMT *pmt;
DvbBaseBinProgram *program;
guint program_number;
pmt = gst_mpegts_section_get_pmt (section);
if (G_UNLIKELY (pmt == NULL)) {
GST_WARNING_OBJECT (dvbbasebin, "Received invalid PMT");
return;
}
program_number = section->subtable_extension;
program = dvb_base_bin_get_program (dvbbasebin, program_number);
if (program == NULL) {
GST_WARNING ("got PMT for program %d but program not in PAT",
program_number);
program = dvb_base_bin_add_program (dvbbasebin, program_number);
}
program->old_pmt = program->pmt;
program->old_section = program->section;
program->pmt = pmt;
program->section = gst_mpegts_section_ref (section);
/* activate the program if it's selected and either it's not active or its pmt
* changed */
if (program->selected && (!program->active || program->old_pmt != NULL))
dvb_base_bin_activate_program (dvbbasebin, program);
if (program->old_pmt) {
gst_mpegts_section_unref (program->old_section);
program->old_pmt = NULL;
}
}
static gboolean
mpegts_base_apply_pmt (MpegTSBase * base, GstMpegtsSection * section)
{
const GstMpegtsPMT *pmt;
MpegTSBaseProgram *program, *old_program;
guint program_number;
gboolean initial_program = TRUE;
pmt = gst_mpegts_section_get_pmt (section);
if (G_UNLIKELY (pmt == NULL)) {
GST_ERROR ("Could not get PMT (corrupted ?)");
return FALSE;
}
/* FIXME : not so sure this is valid anymore */
if (G_UNLIKELY (base->seen_pat == FALSE)) {
GST_WARNING ("Got pmt without pat first. Returning");
/* remove the stream since we won't get another PMT otherwise */
mpegts_packetizer_remove_stream (base->packetizer, section->pid);
return TRUE;
}
program_number = section->subtable_extension;
GST_DEBUG ("Applying PMT (program_number:%d, pid:0x%04x)",
program_number, section->pid);
/* In order for stream switching to happen properly in decodebin(2),
* we need to first add the new pads (i.e. activate the new program)
* before removing the old ones (i.e. deactivating the old program)
*/
old_program = mpegts_base_get_program (base, program_number);
if (G_UNLIKELY (old_program == NULL))
goto no_program;
if (G_UNLIKELY (mpegts_base_is_same_program (base, old_program, section->pid,
pmt)))
goto same_program;
/* If the current program is active, this means we have a new program */
if (old_program->active) {
MpegTSBaseClass *klass = GST_MPEGTS_BASE_GET_CLASS (base);
old_program = mpegts_base_steal_program (base, program_number);
program = mpegts_base_new_program (base, program_number, section->pid);
program->patcount = old_program->patcount;
g_hash_table_insert (base->programs,
GINT_TO_POINTER (program_number), program);
/* Desactivate the old program */
/* FIXME : THIS IS BREAKING THE STREAM SWITCHING LOGIC !
* */
if (klass->can_remove_program (base, old_program)) {
mpegts_base_deactivate_program (base, old_program);
mpegts_base_free_program (old_program);
}
initial_program = FALSE;
} else
program = old_program;
/* activate program */
/* Ownership of pmt_info is given to the program */
mpegts_base_activate_program (base, program, section->pid, section, pmt,
initial_program);
return TRUE;
no_program:
{
GST_ERROR ("Attempted to apply a PMT on a program that wasn't created");
return TRUE;
}
same_program:
{
GST_DEBUG ("Not applying identical program");
return TRUE;
}
}
