static void upipe_rtp_opus_input(struct upipe *upipe, struct uref *uref,
struct upump **upump_p)
{
struct upipe_rtp_opus *upipe_rtp_opus = upipe_rtp_opus_from_upipe(upipe);
uint64_t timestamp = 0;
size_t block_size = 0;
if (!ubase_check(uref_block_size(uref, &block_size))) {
upipe_warn(upipe, "fail to get uref block size");
return;
}
uref_rtp_get_timestamp(uref, ×tamp);
uref_clock_set_pts_orig(uref, timestamp * TS_MULTIPLIER);
uint64_t delta =
(UINT_MAX + timestamp -
(upipe_rtp_opus->last_rtp_timestamp % UINT_MAX)) % UINT_MAX;
upipe_rtp_opus->last_rtp_timestamp += delta;
uref_clock_set_pts_prog(uref, upipe_rtp_opus->last_rtp_timestamp * TS_MULTIPLIER);
upipe_throw_clock_ref(upipe, uref, upipe_rtp_opus->last_rtp_timestamp * TS_MULTIPLIER, 0);
upipe_throw_clock_ts(upipe, uref);
upipe_rtp_opus_output(upipe, uref, upump_p);
}
/** @internal @This receives data.
*
* @param upipe description structure of the pipe
* @param uref uref structure
* @param upump_p reference to pump that generated the buffer
*/
static void upipe_dejitter_sub_input(struct upipe *upipe, struct uref *uref,
struct upump **upump_p)
{
uint64_t date;
if (ubase_check(uref_clock_get_dts_prog(uref, &date)))
upipe_throw_clock_ts(upipe, uref);
upipe_dejitter_output(upipe, uref, upump_p);
}
/** @internal @This interpolates the PCRs for packets without a PCR.
*
* @param upipe description structure of the pipe
* @param uref uref structure
* @param upump_p reference to pump that generated the buffer
*/
static void upipe_ts_pcr_interpolator_input(struct upipe *upipe, struct uref *uref,
struct upump **upump_p)
{
struct upipe_ts_pcr_interpolator *upipe_ts_pcr_interpolator = upipe_ts_pcr_interpolator_from_upipe(upipe);
bool discontinuity = ubase_check(uref_flow_get_discontinuity(uref));
if (discontinuity) {
upipe_ts_pcr_interpolator->last_pcr = 0;
upipe_ts_pcr_interpolator->packets = 0;
upipe_ts_pcr_interpolator->pcr_packets = 0;
upipe_ts_pcr_interpolator->pcr_delta = 0;
upipe_ts_pcr_interpolator->discontinuity = true;
upipe_notice_va(upipe, "Clearing state");
}
upipe_ts_pcr_interpolator->packets++;
uint64_t pcr_prog = 0;
uref_clock_get_cr_prog(uref, &pcr_prog);
if (pcr_prog) {
uint64_t delta = pcr_prog - upipe_ts_pcr_interpolator->last_pcr;
upipe_ts_pcr_interpolator->last_pcr = pcr_prog;
upipe_verbose_va(upipe,
"pcr_prog %"PRId64" offset %"PRId64" stored offset %"PRIu64" bitrate %"PRId64" bps",
pcr_prog, delta,
upipe_ts_pcr_interpolator->pcr_delta,
INT64_C(27000000) * upipe_ts_pcr_interpolator->packets * 188 * 8 / delta);
if (upipe_ts_pcr_interpolator->pcr_delta)
upipe_ts_pcr_interpolator->pcr_packets = upipe_ts_pcr_interpolator->packets;
upipe_ts_pcr_interpolator->pcr_delta = delta;
upipe_ts_pcr_interpolator->packets = 0;
} else if (upipe_ts_pcr_interpolator->pcr_packets) {
uint64_t offset = upipe_ts_pcr_interpolator->pcr_delta *
upipe_ts_pcr_interpolator->packets / upipe_ts_pcr_interpolator->pcr_packets;
uint64_t prog = upipe_ts_pcr_interpolator->last_pcr + offset;
uref_clock_set_date_prog(uref, prog, UREF_DATE_CR);
upipe_throw_clock_ts(upipe, uref);
}
if (!upipe_ts_pcr_interpolator->pcr_packets) {
uref_free(uref);
return;
}
if (upipe_ts_pcr_interpolator->discontinuity) {
uref_flow_set_discontinuity(uref);
upipe_ts_pcr_interpolator->discontinuity = false;
}
upipe_ts_pcr_interpolator_output(upipe, uref, upump_p);
}
/** @internal @This receives data.
*
* @param upipe description structure of the pipe
* @param uref uref structure
* @param upump_p reference to pump that generated the buffer
*/
static void upipe_dejitter_input(struct upipe *upipe, struct uref *uref,
struct upump **upump_p)
{
uint64_t date;
if (ubase_check(uref_clock_get_dts_prog(uref, &date))) {
struct upipe_dejitter *upipe_dejitter =
upipe_dejitter_from_upipe(upipe);
upipe_throw_clock_ref(upipe, uref, date, !upipe_dejitter->inited);
upipe_throw_clock_ts(upipe, uref);
upipe_dejitter->inited = true;
}
upipe_dejitter_output(upipe, uref, upump_p);
}
/** @internal @This parses and removes the PES header of a packet.
*
* @param upipe description structure of the pipe
* @param upump_p reference to pump that generated the buffer
*/
static void upipe_ts_pesd_decaps(struct upipe *upipe, struct upump **upump_p)
{
struct upipe_ts_pesd *upipe_ts_pesd = upipe_ts_pesd_from_upipe(upipe);
uint8_t buffer[PES_HEADER_SIZE];
const uint8_t *pes_header = uref_block_peek(upipe_ts_pesd->next_uref,
0, PES_HEADER_SIZE, buffer);
if (unlikely(pes_header == NULL))
return;
bool validate = pes_validate(pes_header);
uint8_t streamid = pes_get_streamid(pes_header);
uint16_t length = pes_get_length(pes_header);
UBASE_FATAL(upipe, uref_block_peek_unmap(upipe_ts_pesd->next_uref, 0,
buffer, pes_header))
if (unlikely(!validate)) {
upipe_warn(upipe, "wrong PES header");
upipe_ts_pesd_flush(upipe);
return;
}
if (unlikely(streamid == PES_STREAM_ID_PADDING)) {
upipe_ts_pesd_flush(upipe);
return;
}
if (length)
upipe_ts_pesd->next_pes_size = length + PES_HEADER_SIZE;
else
upipe_ts_pesd->next_pes_size = 0;
if (streamid == PES_STREAM_ID_PSM ||
streamid == PES_STREAM_ID_PRIVATE_2 ||
streamid == PES_STREAM_ID_ECM ||
streamid == PES_STREAM_ID_EMM ||
streamid == PES_STREAM_ID_PSD ||
streamid == PES_STREAM_ID_DSMCC ||
streamid == PES_STREAM_ID_H222_1_E) {
UBASE_FATAL(upipe, uref_block_resize(upipe_ts_pesd->next_uref,
PES_HEADER_SIZE, -1))
upipe_ts_pesd_check_output(upipe, upump_p);
return;
}
if (unlikely(length != 0 && length < PES_HEADER_OPTIONAL_SIZE)) {
upipe_warn(upipe, "wrong PES length");
upipe_ts_pesd_flush(upipe);
return;
}
uint8_t buffer2[PES_HEADER_SIZE_NOPTS - PES_HEADER_SIZE];
pes_header = uref_block_peek(upipe_ts_pesd->next_uref, PES_HEADER_SIZE,
PES_HEADER_OPTIONAL_SIZE, buffer2);
if (unlikely(pes_header == NULL))
return;
validate = pes_validate_header(pes_header - PES_HEADER_SIZE);
bool alignment = pes_get_dataalignment(pes_header - PES_HEADER_SIZE);
bool has_pts = pes_has_pts(pes_header - PES_HEADER_SIZE);
bool has_dts = pes_has_dts(pes_header - PES_HEADER_SIZE);
uint8_t headerlength = pes_get_headerlength(pes_header - PES_HEADER_SIZE);
UBASE_FATAL(upipe, uref_block_peek_unmap(upipe_ts_pesd->next_uref,
PES_HEADER_SIZE, buffer2, pes_header))
if (unlikely(!validate)) {
upipe_warn(upipe, "wrong PES optional header");
upipe_ts_pesd_flush(upipe);
return;
}
if (unlikely((length != 0 &&
headerlength + PES_HEADER_OPTIONAL_SIZE > length) ||
(has_pts && headerlength < PES_HEADER_SIZE_PTS -
PES_HEADER_SIZE_NOPTS) ||
(has_dts && headerlength < PES_HEADER_SIZE_PTSDTS -
PES_HEADER_SIZE_NOPTS))) {
upipe_warn(upipe, "wrong PES header length");
upipe_ts_pesd_flush(upipe);
return;
}
if (upipe_ts_pesd->next_uref_size < PES_HEADER_SIZE_NOPTS + headerlength)
return;
if (has_pts) {
uint8_t buffer3[PES_HEADER_TS_SIZE * 2];
uint64_t pts, dts;
const uint8_t *ts_fields = uref_block_peek(upipe_ts_pesd->next_uref,
PES_HEADER_SIZE_NOPTS, PES_HEADER_TS_SIZE * (has_dts ? 2 : 1),
buffer3);
if (unlikely(ts_fields == NULL)) {
upipe_ts_pesd_flush(upipe);
upipe_throw_fatal(upipe, UBASE_ERR_ALLOC);
return;
}
validate = pes_validate_pts(ts_fields - PES_HEADER_SIZE_NOPTS);
pts = pes_get_pts(ts_fields - PES_HEADER_SIZE_NOPTS);
if (has_dts) {
validate = validate &&
pes_validate_dts(ts_fields - PES_HEADER_SIZE_NOPTS);
dts = pes_get_dts(ts_fields - PES_HEADER_SIZE_NOPTS);
} else
dts = pts;
UBASE_FATAL(upipe, uref_block_peek_unmap(upipe_ts_pesd->next_uref,
PES_HEADER_SIZE_NOPTS, buffer3, ts_fields))
if (unlikely(!validate)) {
upipe_warn(upipe, "wrong PES timestamp syntax");
#if 0
/* disable this because it is a common syntax error */
upipe_ts_pesd_flush(upipe);
return;
#endif
}
uint64_t dts_pts_delay = (POW2_33 + pts - dts) % POW2_33;
if (dts_pts_delay > POW2_33 / 2) {
upipe_warn_va(upipe, "invalid PTS field (%"PRIu64" < %"PRIu64")",
pts, dts);
dts_pts_delay = 0;
}
dts_pts_delay *= UCLOCK_FREQ / 90000;
dts *= UCLOCK_FREQ / 90000;
uref_clock_set_dts_orig(upipe_ts_pesd->next_uref, dts);
uref_clock_set_dts_pts_delay(upipe_ts_pesd->next_uref, dts_pts_delay);
upipe_throw_clock_ts(upipe, upipe_ts_pesd->next_uref);
}
if (alignment)
uref_flow_set_random(upipe_ts_pesd->next_uref);
UBASE_FATAL(upipe, uref_block_resize(upipe_ts_pesd->next_uref,
PES_HEADER_SIZE_NOPTS + headerlength, -1))
upipe_ts_pesd_check_output(upipe, upump_p);
}
