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Diffstat (limited to 'libs/surfaces/control_protocol/smpte.cc')
-rw-r--r--libs/surfaces/control_protocol/smpte.cc302
1 files changed, 151 insertions, 151 deletions
diff --git a/libs/surfaces/control_protocol/smpte.cc b/libs/surfaces/control_protocol/smpte.cc
index 969c3385bc..555dc86d38 100644
--- a/libs/surfaces/control_protocol/smpte.cc
+++ b/libs/surfaces/control_protocol/smpte.cc
@@ -16,186 +16,186 @@
675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#define SMPTE_IS_AROUND_ZERO( sm ) (!(sm).frames && !(sm).seconds && !(sm).minutes && !(sm).hours)
-#define SMPTE_IS_ZERO( sm ) (!(sm).frames && !(sm).seconds && !(sm).minutes && !(sm).hours && !(sm.subframes))
+#define Timecode_IS_AROUND_ZERO( sm ) (!(sm).frames && !(sm).seconds && !(sm).minutes && !(sm).hours)
+#define Timecode_IS_ZERO( sm ) (!(sm).frames && !(sm).seconds && !(sm).minutes && !(sm).hours && !(sm.subframes))
-#include "control_protocol/smpte.h"
+#include "control_protocol/timecode.h"
#include "ardour/rc_configuration.h"
-namespace SMPTE {
+namespace Timecode {
float Time::default_rate = 30.0;
-/** Increment @a smpte by exactly one frame (keep subframes value).
+/** Increment @a timecode by exactly one frame (keep subframes value).
* Realtime safe.
* @return true if seconds wrap.
*/
Wrap
-increment( Time& smpte, uint32_t subframes_per_frame )
+increment( Time& timecode, uint32_t subframes_per_frame )
{
Wrap wrap = NONE;
- if (smpte.negative) {
- if (SMPTE_IS_AROUND_ZERO(smpte) && smpte.subframes) {
+ if (timecode.negative) {
+ if (Timecode_IS_AROUND_ZERO(timecode) && timecode.subframes) {
// We have a zero transition involving only subframes
- smpte.subframes = subframes_per_frame - smpte.subframes;
- smpte.negative = false;
+ timecode.subframes = subframes_per_frame - timecode.subframes;
+ timecode.negative = false;
return SECONDS;
}
- smpte.negative = false;
- wrap = decrement( smpte, subframes_per_frame );
- if (!SMPTE_IS_ZERO( smpte )) {
- smpte.negative = true;
+ timecode.negative = false;
+ wrap = decrement( timecode, subframes_per_frame );
+ if (!Timecode_IS_ZERO( timecode )) {
+ timecode.negative = true;
}
return wrap;
}
- switch ((int)ceil(smpte.rate)) {
+ switch ((int)ceil(timecode.rate)) {
case 24:
- if (smpte.frames == 23) {
- smpte.frames = 0;
+ if (timecode.frames == 23) {
+ timecode.frames = 0;
wrap = SECONDS;
}
break;
case 25:
- if (smpte.frames == 24) {
- smpte.frames = 0;
+ if (timecode.frames == 24) {
+ timecode.frames = 0;
wrap = SECONDS;
}
break;
case 30:
- if (smpte.drop) {
- if (smpte.frames == 29) {
- if ( ((smpte.minutes + 1) % 10) && (smpte.seconds == 59) ) {
- smpte.frames = 2;
+ if (timecode.drop) {
+ if (timecode.frames == 29) {
+ if ( ((timecode.minutes + 1) % 10) && (timecode.seconds == 59) ) {
+ timecode.frames = 2;
}
else {
- smpte.frames = 0;
+ timecode.frames = 0;
}
wrap = SECONDS;
}
} else {
- if (smpte.frames == 29) {
- smpte.frames = 0;
+ if (timecode.frames == 29) {
+ timecode.frames = 0;
wrap = SECONDS;
}
}
break;
case 60:
- if (smpte.frames == 59) {
- smpte.frames = 0;
+ if (timecode.frames == 59) {
+ timecode.frames = 0;
wrap = SECONDS;
}
break;
}
if (wrap == SECONDS) {
- if (smpte.seconds == 59) {
- smpte.seconds = 0;
+ if (timecode.seconds == 59) {
+ timecode.seconds = 0;
wrap = MINUTES;
- if (smpte.minutes == 59) {
- smpte.minutes = 0;
+ if (timecode.minutes == 59) {
+ timecode.minutes = 0;
wrap = HOURS;
- smpte.hours++;
+ timecode.hours++;
} else {
- smpte.minutes++;
+ timecode.minutes++;
}
} else {
- smpte.seconds++;
+ timecode.seconds++;
}
} else {
- smpte.frames++;
+ timecode.frames++;
}
return wrap;
}
-/** Decrement @a smpte by exactly one frame (keep subframes value)
+/** Decrement @a timecode by exactly one frame (keep subframes value)
* Realtime safe.
* @return true if seconds wrap. */
Wrap
-decrement( Time& smpte, uint32_t subframes_per_frame )
+decrement( Time& timecode, uint32_t subframes_per_frame )
{
Wrap wrap = NONE;
- if (smpte.negative || SMPTE_IS_ZERO(smpte)) {
- smpte.negative = false;
- wrap = increment( smpte, subframes_per_frame );
- smpte.negative = true;
+ if (timecode.negative || Timecode_IS_ZERO(timecode)) {
+ timecode.negative = false;
+ wrap = increment( timecode, subframes_per_frame );
+ timecode.negative = true;
return wrap;
- } else if (SMPTE_IS_AROUND_ZERO(smpte) && smpte.subframes) {
+ } else if (Timecode_IS_AROUND_ZERO(timecode) && timecode.subframes) {
// We have a zero transition involving only subframes
- smpte.subframes = subframes_per_frame - smpte.subframes;
- smpte.negative = true;
+ timecode.subframes = subframes_per_frame - timecode.subframes;
+ timecode.negative = true;
return SECONDS;
}
- switch ((int)ceil(smpte.rate)) {
+ switch ((int)ceil(timecode.rate)) {
case 24:
- if (smpte.frames == 0) {
- smpte.frames = 23;
+ if (timecode.frames == 0) {
+ timecode.frames = 23;
wrap = SECONDS;
}
break;
case 25:
- if (smpte.frames == 0) {
- smpte.frames = 24;
+ if (timecode.frames == 0) {
+ timecode.frames = 24;
wrap = SECONDS;
}
break;
case 30:
- if (smpte.drop) {
- if ((smpte.minutes % 10) && (smpte.seconds == 0)) {
- if (smpte.frames <= 2) {
- smpte.frames = 29;
+ if (timecode.drop) {
+ if ((timecode.minutes % 10) && (timecode.seconds == 0)) {
+ if (timecode.frames <= 2) {
+ timecode.frames = 29;
wrap = SECONDS;
}
- } else if (smpte.frames == 0) {
- smpte.frames = 29;
+ } else if (timecode.frames == 0) {
+ timecode.frames = 29;
wrap = SECONDS;
}
} else {
- if (smpte.frames == 0) {
- smpte.frames = 29;
+ if (timecode.frames == 0) {
+ timecode.frames = 29;
wrap = SECONDS;
}
}
break;
case 60:
- if (smpte.frames == 0) {
- smpte.frames = 59;
+ if (timecode.frames == 0) {
+ timecode.frames = 59;
wrap = SECONDS;
}
break;
}
if (wrap == SECONDS) {
- if (smpte.seconds == 0) {
- smpte.seconds = 59;
+ if (timecode.seconds == 0) {
+ timecode.seconds = 59;
wrap = MINUTES;
- if (smpte.minutes == 0) {
- smpte.minutes = 59;
+ if (timecode.minutes == 0) {
+ timecode.minutes = 59;
wrap = HOURS;
- smpte.hours--;
+ timecode.hours--;
}
else {
- smpte.minutes--;
+ timecode.minutes--;
}
} else {
- smpte.seconds--;
+ timecode.seconds--;
}
} else {
- smpte.frames--;
+ timecode.frames--;
}
- if (SMPTE_IS_ZERO( smpte )) {
- smpte.negative = false;
+ if (Timecode_IS_ZERO( timecode )) {
+ timecode.negative = false;
}
return wrap;
@@ -204,68 +204,68 @@ decrement( Time& smpte, uint32_t subframes_per_frame )
/** Go to lowest absolute subframe value in this frame (set to 0 :-) ) */
void
-frames_floor( Time& smpte )
+frames_floor( Time& timecode )
{
- smpte.subframes = 0;
- if (SMPTE_IS_ZERO(smpte)) {
- smpte.negative = false;
+ timecode.subframes = 0;
+ if (Timecode_IS_ZERO(timecode)) {
+ timecode.negative = false;
}
}
-/** Increment @a smpte by one subframe */
+/** Increment @a timecode by one subframe */
Wrap
-increment_subframes( Time& smpte, uint32_t subframes_per_frame )
+increment_subframes( Time& timecode, uint32_t subframes_per_frame )
{
Wrap wrap = NONE;
- if (smpte.negative) {
- smpte.negative = false;
- wrap = decrement_subframes( smpte, subframes_per_frame );
- if (!SMPTE_IS_ZERO(smpte)) {
- smpte.negative = true;
+ if (timecode.negative) {
+ timecode.negative = false;
+ wrap = decrement_subframes( timecode, subframes_per_frame );
+ if (!Timecode_IS_ZERO(timecode)) {
+ timecode.negative = true;
}
return wrap;
}
- smpte.subframes++;
- if (smpte.subframes >= subframes_per_frame) {
- smpte.subframes = 0;
- increment( smpte, subframes_per_frame );
+ timecode.subframes++;
+ if (timecode.subframes >= subframes_per_frame) {
+ timecode.subframes = 0;
+ increment( timecode, subframes_per_frame );
return FRAMES;
}
return NONE;
}
-/** Decrement @a smpte by one subframe */
+/** Decrement @a timecode by one subframe */
Wrap
-decrement_subframes( Time& smpte, uint32_t subframes_per_frame )
+decrement_subframes( Time& timecode, uint32_t subframes_per_frame )
{
Wrap wrap = NONE;
- if (smpte.negative) {
- smpte.negative = false;
- wrap = increment_subframes( smpte, subframes_per_frame );
- smpte.negative = true;
+ if (timecode.negative) {
+ timecode.negative = false;
+ wrap = increment_subframes( timecode, subframes_per_frame );
+ timecode.negative = true;
return wrap;
}
- if (smpte.subframes <= 0) {
- smpte.subframes = 0;
- if (SMPTE_IS_ZERO(smpte)) {
- smpte.negative = true;
- smpte.subframes = 1;
+ if (timecode.subframes <= 0) {
+ timecode.subframes = 0;
+ if (Timecode_IS_ZERO(timecode)) {
+ timecode.negative = true;
+ timecode.subframes = 1;
return FRAMES;
} else {
- decrement( smpte, subframes_per_frame );
- smpte.subframes = 79;
+ decrement( timecode, subframes_per_frame );
+ timecode.subframes = 79;
return FRAMES;
}
} else {
- smpte.subframes--;
- if (SMPTE_IS_ZERO(smpte)) {
- smpte.negative = false;
+ timecode.subframes--;
+ if (Timecode_IS_ZERO(timecode)) {
+ timecode.negative = false;
}
return NONE;
}
@@ -274,40 +274,40 @@ decrement_subframes( Time& smpte, uint32_t subframes_per_frame )
/** Go to next whole second (frames == 0 or frames == 2) */
Wrap
-increment_seconds( Time& smpte, uint32_t subframes_per_frame )
+increment_seconds( Time& timecode, uint32_t subframes_per_frame )
{
Wrap wrap = NONE;
// Clear subframes
- frames_floor( smpte );
+ frames_floor( timecode );
- if (smpte.negative) {
+ if (timecode.negative) {
// Wrap second if on second boundary
- wrap = increment(smpte, subframes_per_frame);
+ wrap = increment(timecode, subframes_per_frame);
// Go to lowest absolute frame value
- seconds_floor( smpte );
- if (SMPTE_IS_ZERO(smpte)) {
- smpte.negative = false;
+ seconds_floor( timecode );
+ if (Timecode_IS_ZERO(timecode)) {
+ timecode.negative = false;
}
} else {
// Go to highest possible frame in this second
- switch ((int)ceil(smpte.rate)) {
+ switch ((int)ceil(timecode.rate)) {
case 24:
- smpte.frames = 23;
+ timecode.frames = 23;
break;
case 25:
- smpte.frames = 24;
+ timecode.frames = 24;
break;
case 30:
- smpte.frames = 29;
+ timecode.frames = 29;
break;
case 60:
- smpte.frames = 59;
+ timecode.frames = 59;
break;
}
// Increment by one frame
- wrap = increment( smpte, subframes_per_frame );
+ wrap = increment( timecode, subframes_per_frame );
}
return wrap;
@@ -317,55 +317,55 @@ increment_seconds( Time& smpte, uint32_t subframes_per_frame )
/** Go to lowest (absolute) frame value in this second
* Doesn't care about positive/negative */
void
-seconds_floor( Time& smpte )
+seconds_floor( Time& timecode )
{
// Clear subframes
- frames_floor( smpte );
+ frames_floor( timecode );
// Go to lowest possible frame in this second
- switch ((int)ceil(smpte.rate)) {
+ switch ((int)ceil(timecode.rate)) {
case 24:
case 25:
case 30:
case 60:
- if (!(smpte.drop)) {
- smpte.frames = 0;
+ if (!(timecode.drop)) {
+ timecode.frames = 0;
} else {
- if ((smpte.minutes % 10) && (smpte.seconds == 0)) {
- smpte.frames = 2;
+ if ((timecode.minutes % 10) && (timecode.seconds == 0)) {
+ timecode.frames = 2;
} else {
- smpte.frames = 0;
+ timecode.frames = 0;
}
}
break;
}
- if (SMPTE_IS_ZERO(smpte)) {
- smpte.negative = false;
+ if (Timecode_IS_ZERO(timecode)) {
+ timecode.negative = false;
}
}
/** Go to next whole minute (seconds == 0, frames == 0 or frames == 2) */
Wrap
-increment_minutes( Time& smpte, uint32_t subframes_per_frame )
+increment_minutes( Time& timecode, uint32_t subframes_per_frame )
{
Wrap wrap = NONE;
// Clear subframes
- frames_floor( smpte );
+ frames_floor( timecode );
- if (smpte.negative) {
+ if (timecode.negative) {
// Wrap if on minute boundary
- wrap = increment_seconds( smpte, subframes_per_frame );
+ wrap = increment_seconds( timecode, subframes_per_frame );
// Go to lowest possible value in this minute
- minutes_floor( smpte );
+ minutes_floor( timecode );
} else {
// Go to highest possible second
- smpte.seconds = 59;
+ timecode.seconds = 59;
// Wrap minute by incrementing second
- wrap = increment_seconds( smpte, subframes_per_frame );
+ wrap = increment_seconds( timecode, subframes_per_frame );
}
return wrap;
@@ -374,36 +374,36 @@ increment_minutes( Time& smpte, uint32_t subframes_per_frame )
/** Go to lowest absolute value in this minute */
void
-minutes_floor( Time& smpte )
+minutes_floor( Time& timecode )
{
// Go to lowest possible second
- smpte.seconds = 0;
+ timecode.seconds = 0;
// Go to lowest possible frame
- seconds_floor( smpte );
+ seconds_floor( timecode );
- if (SMPTE_IS_ZERO(smpte)) {
- smpte.negative = false;
+ if (Timecode_IS_ZERO(timecode)) {
+ timecode.negative = false;
}
}
/** Go to next whole hour (minute = 0, second = 0, frame = 0) */
Wrap
-increment_hours( Time& smpte, uint32_t subframes_per_frame )
+increment_hours( Time& timecode, uint32_t subframes_per_frame )
{
Wrap wrap = NONE;
// Clear subframes
- frames_floor(smpte);
+ frames_floor(timecode);
- if (smpte.negative) {
+ if (timecode.negative) {
// Wrap if on hour boundary
- wrap = increment_minutes( smpte, subframes_per_frame );
+ wrap = increment_minutes( timecode, subframes_per_frame );
// Go to lowest possible value in this hour
- hours_floor( smpte );
+ hours_floor( timecode );
} else {
- smpte.minutes = 59;
- wrap = increment_minutes( smpte, subframes_per_frame );
+ timecode.minutes = 59;
+ wrap = increment_minutes( timecode, subframes_per_frame );
}
return wrap;
@@ -412,17 +412,17 @@ increment_hours( Time& smpte, uint32_t subframes_per_frame )
/** Go to lowest absolute value in this hour */
void
-hours_floor( Time& smpte )
+hours_floor( Time& timecode )
{
- smpte.minutes = 0;
- smpte.seconds = 0;
- smpte.frames = 0;
- smpte.subframes = 0;
+ timecode.minutes = 0;
+ timecode.seconds = 0;
+ timecode.frames = 0;
+ timecode.subframes = 0;
- if (SMPTE_IS_ZERO(smpte)) {
- smpte.negative = false;
+ if (Timecode_IS_ZERO(timecode)) {
+ timecode.negative = false;
}
}
-} // namespace SMPTE
+} // namespace Timecode
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-16 18:25:37 +0000