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Revert s/frame/sample/ for LTC frame

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This commit is contained in:
Robin Gareus 2023-12-02 22:45:33 +01:00
parent 8576db5642
commit 1386b3b73f
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 24 additions and 24 deletions
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48
libs/ardour/ltc_slave.cc
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@ -384,22 +384,22 @@ LTC_TransportMaster::detect_ltc_fps(int frameno, bool df)
void void
LTC_TransportMaster::process_ltc(samplepos_t const now) LTC_TransportMaster::process_ltc(samplepos_t const now)
{ {
LTCFrameExt sample; LTCFrameExt ltc_frame;
LTC_TV_STANDARD tv_standard = LTC_TV_625_50; LTC_TV_STANDARD tv_standard = LTC_TV_625_50;
while (ltc_decoder_read (decoder, &sample)) { while (ltc_decoder_read (decoder, &ltc_frame)) {
SMPTETimecode stime; SMPTETimecode stime;
ltc_frame_to_time (&stime, &sample.ltc, 0); ltc_frame_to_time (&stime, &ltc_frame.ltc, 0);
timecode.negative = false; timecode.negative = false;
timecode.subframes = 0; timecode.subframes = 0;
/* set timecode.rate and timecode.drop: */ /* set timecode.rate and timecode.drop: */
const bool ltc_is_stationary = equal_ltc_sample_time (&prev_frame.ltc, &sample.ltc); const bool ltc_is_stationary = equal_ltc_sample_time (&prev_frame.ltc, &ltc_frame.ltc);
if (detect_discontinuity (&sample, ceil(timecode.rate), !fps_detected)) { if (detect_discontinuity (&ltc_frame, ceil(timecode.rate), !fps_detected)) {
if (frames_since_reset > 1) { if (frames_since_reset > 1) {
reset (false); reset (false);
} }
@ -410,7 +410,7 @@ LTC_TransportMaster::process_ltc(samplepos_t const now)
} }
} }
if (!ltc_is_stationary && detect_ltc_fps (stime.frame, (sample.ltc.dfbit) ? true : false)) { if (!ltc_is_stationary && detect_ltc_fps (stime.frame, (ltc_frame.ltc.dfbit) ? true : false)) {
reset (true); reset (true);
fps_detected = true; fps_detected = true;
} }
@ -428,20 +428,20 @@ LTC_TransportMaster::process_ltc(samplepos_t const now)
stime.hours, stime.hours,
stime.mins, stime.mins,
stime.secs, stime.secs,
(sample.ltc.dfbit) ? '.' : ':', (ltc_frame.ltc.dfbit) ? '.' : ':',
stime.frame, stime.frame,
sample.off_start, ltc_frame.off_start,
sample.off_end, ltc_frame.off_end,
sample.reverse ? " R" : " " ltc_frame.reverse ? " R" : " "
); );
DEBUG_TRACE (DEBUG::LTC, buf); DEBUG_TRACE (DEBUG::LTC, buf);
} }
#endif #endif
/* when a full LTC sample is decoded, the timecode the LTC sample /* when a full LTC frame is decoded, the timecode the LTC frame
* is referring has just passed. * is referring has just passed.
* So we send the _next_ timecode which * So we send the _next_ timecode which
* is expected to start at the end of the current sample * is expected to start at the end of the current LTC frame
*/ */
int fps_i = ceil(timecode.rate); int fps_i = ceil(timecode.rate);
@ -461,17 +461,17 @@ LTC_TransportMaster::process_ltc(samplepos_t const now)
break; break;
} }
if (!sample.reverse) { if (!ltc_frame.reverse) {
ltc_frame_increment(&sample.ltc, fps_i, tv_standard, 0); ltc_frame_increment(&ltc_frame.ltc, fps_i, tv_standard, 0);
ltc_frame_to_time(&stime, &sample.ltc, 0); ltc_frame_to_time(&stime, &ltc_frame.ltc, 0);
transport_direction = 1; transport_direction = 1;
sample.off_start -= ltc_frame_alignment(samples_per_timecode_frame, tv_standard); ltc_frame.off_start -= ltc_frame_alignment(samples_per_timecode_frame, tv_standard);
sample.off_end -= ltc_frame_alignment(samples_per_timecode_frame, tv_standard); ltc_frame.off_end -= ltc_frame_alignment(samples_per_timecode_frame, tv_standard);
} else { } else {
ltc_frame_decrement(&sample.ltc, fps_i, tv_standard, 0); ltc_frame_decrement(&ltc_frame.ltc, fps_i, tv_standard, 0);
int off = sample.off_end - sample.off_start; int off = ltc_frame.off_end - ltc_frame.off_start;
sample.off_start += off - ltc_frame_alignment(samples_per_timecode_frame, tv_standard); ltc_frame.off_start += off - ltc_frame_alignment(samples_per_timecode_frame, tv_standard);
sample.off_end += off - ltc_frame_alignment(samples_per_timecode_frame, tv_standard); ltc_frame.off_end += off - ltc_frame_alignment(samples_per_timecode_frame, tv_standard);
transport_direction = -1; transport_direction = -1;
} }
@ -501,10 +501,10 @@ LTC_TransportMaster::process_ltc(samplepos_t const now)
* *
*/ */
samplepos_t cur_timestamp = sample.off_end + 1; samplepos_t cur_timestamp = ltc_frame.off_end + 1;
double ltc_speed = current.speed; double ltc_speed = current.speed;
DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC ltc-sample: %1 prev-ltc-sample %2 cur-timestamp: %3 last-timestamp: %4 frame-spans %5..%6\n", ltc_sample, current.position, cur_timestamp, current.timestamp, sample.off_start, sample.off_end)); DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC ltc-sample: %1 prev-ltc-sample %2 cur-timestamp: %3 last-timestamp: %4 frame-spans %5..%6\n", ltc_sample, current.position, cur_timestamp, current.timestamp, ltc_frame.off_start, ltc_frame.off_end));
if (cur_timestamp <= current.timestamp || current.timestamp == 0) { if (cur_timestamp <= current.timestamp || current.timestamp == 0) {
DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC speed: UNCHANGED: %1\n", current.speed)); DEBUG_TRACE (DEBUG::LTC, string_compose ("LTC speed: UNCHANGED: %1\n", current.speed));
@ -525,7 +525,7 @@ LTC_TransportMaster::process_ltc(samplepos_t const now)
DEBUG_TRACE (DEBUG::LTC, string_compose ("update current to %1 %2 %3\n", ltc_sample, cur_timestamp, ltc_speed)); DEBUG_TRACE (DEBUG::LTC, string_compose ("update current to %1 %2 %3\n", ltc_sample, cur_timestamp, ltc_speed));
current.update (ltc_sample, cur_timestamp, ltc_speed); current.update (ltc_sample, cur_timestamp, ltc_speed);
} /* end foreach decoded LTC sample */ } /* end foreach decoded LTC frame */
} }
void void