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/*
* Copyright (c) 2013 - Andre Roth <neolynx@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation version 2.1 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
*/
#include <libdvbv5/mpeg_pes.h>
#include <libdvbv5/descriptors.h>
#include <libdvbv5/dvb-fe.h>
#include <inttypes.h>
#if __GNUC__ >= 9
#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
#endif
ssize_t dvb_mpeg_pes_init(struct dvb_v5_fe_parms *parms, const uint8_t *buf, ssize_t buflen, uint8_t *table)
{
struct dvb_mpeg_pes *pes = (struct dvb_mpeg_pes *) table;
const uint8_t *p = buf;
ssize_t bytes_read = 0;
memcpy(table, p, sizeof(struct dvb_mpeg_pes));
p += sizeof(struct dvb_mpeg_pes);
bytes_read += sizeof(struct dvb_mpeg_pes);
bswap32(pes->bitfield);
bswap16(pes->length);
if (pes->sync != 0x000001) {
dvb_logerr("mpeg pes invalid, sync 0x%06x should be 0x000001", pes->sync);
return -1;
}
if (pes->stream_id == DVB_MPEG_STREAM_PADDING) {
dvb_logwarn("mpeg pes padding stream ignored");
} else if (pes->stream_id == DVB_MPEG_STREAM_MAP ||
pes->stream_id == DVB_MPEG_STREAM_PRIVATE_2 ||
pes->stream_id == DVB_MPEG_STREAM_ECM ||
pes->stream_id == DVB_MPEG_STREAM_EMM ||
pes->stream_id == DVB_MPEG_STREAM_DIRECTORY ||
pes->stream_id == DVB_MPEG_STREAM_DSMCC ||
pes->stream_id == DVB_MPEG_STREAM_H222E ) {
dvb_logerr("mpeg pes: unsupported stream type 0x%04x", pes->stream_id);
return -2;
} else {
memcpy(pes->optional, p, sizeof(struct dvb_mpeg_pes_optional) -
sizeof(pes->optional->pts) -
sizeof(pes->optional->dts));
p += sizeof(struct dvb_mpeg_pes_optional) -
sizeof(pes->optional->pts) -
sizeof(pes->optional->dts);
bswap16(pes->optional->bitfield);
pes->optional->pts = 0;
pes->optional->dts = 0;
if (pes->optional->PTS_DTS & 2) {
struct ts_t pts;
memcpy(&pts, p, sizeof(pts));
p += sizeof(pts);
bswap16(pts.bitfield);
bswap16(pts.bitfield2);
if (pts.one != 1 || pts.one1 != 1 || pts.one2 != 1)
dvb_logwarn("mpeg pes: invalid pts");
else {
pes->optional->pts |= (uint64_t) pts.bits00;
pes->optional->pts |= (uint64_t) pts.bits15 << 15;
pes->optional->pts |= (uint64_t) pts.bits30 << 30;
}
}
if (pes->optional->PTS_DTS & 1) {
struct ts_t dts;
memcpy(&dts, p, sizeof(dts));
p += sizeof(dts);
bswap16(dts.bitfield);
bswap16(dts.bitfield2);
pes->optional->dts |= (uint64_t) dts.bits00;
pes->optional->dts |= (uint64_t) dts.bits15 << 15;
pes->optional->dts |= (uint64_t) dts.bits30 << 30;
}
bytes_read += sizeof(struct dvb_mpeg_pes_optional);
}
return bytes_read;
}
void dvb_mpeg_pes_free(struct dvb_mpeg_pes *ts)
{
free(ts);
}
void dvb_mpeg_pes_print(struct dvb_v5_fe_parms *parms, struct dvb_mpeg_pes *pes)
{
dvb_loginfo("MPEG PES");
dvb_loginfo(" - sync 0x%06x", pes->sync);
dvb_loginfo(" - stream_id 0x%04x", pes->stream_id);
dvb_loginfo(" - length %d", pes->length);
if (pes->stream_id == DVB_MPEG_STREAM_PADDING) {
} else if (pes->stream_id == DVB_MPEG_STREAM_MAP ||
pes->stream_id == DVB_MPEG_STREAM_PRIVATE_2 ||
pes->stream_id == DVB_MPEG_STREAM_ECM ||
pes->stream_id == DVB_MPEG_STREAM_EMM ||
pes->stream_id == DVB_MPEG_STREAM_DIRECTORY ||
pes->stream_id == DVB_MPEG_STREAM_DSMCC ||
pes->stream_id == DVB_MPEG_STREAM_H222E ) {
dvb_logwarn(" mpeg pes unsupported stream type 0x%04x", pes->stream_id);
} else {
dvb_loginfo(" mpeg pes optional");
dvb_loginfo(" - two %d", pes->optional->two);
dvb_loginfo(" - PES_scrambling_control %d", pes->optional->PES_scrambling_control);
dvb_loginfo(" - PES_priority %d", pes->optional->PES_priority);
dvb_loginfo(" - data_alignment_indicator %d", pes->optional->data_alignment_indicator);
dvb_loginfo(" - copyright %d", pes->optional->copyright);
dvb_loginfo(" - original_or_copy %d", pes->optional->original_or_copy);
dvb_loginfo(" - PTS_DTS %d", pes->optional->PTS_DTS);
dvb_loginfo(" - ESCR %d", pes->optional->ESCR);
dvb_loginfo(" - ES_rate %d", pes->optional->ES_rate);
dvb_loginfo(" - DSM_trick_mode %d", pes->optional->DSM_trick_mode);
dvb_loginfo(" - additional_copy_info %d", pes->optional->additional_copy_info);
dvb_loginfo(" - PES_CRC %d", pes->optional->PES_CRC);
dvb_loginfo(" - PES_extension %d", pes->optional->PES_extension);
dvb_loginfo(" - length %d", pes->optional->length);
if (pes->optional->PTS_DTS & 2)
dvb_loginfo(" - pts %" PRIu64 " (%fs)",
pes->optional->pts, (float) pes->optional->pts / 90000.0);
if (pes->optional->PTS_DTS & 1)
dvb_loginfo(" - dts %" PRIu64 " (%fs)",
pes->optional->dts, (float) pes->optional->dts/ 90000.0);
}
}
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