Add FirstPTS/LastPTS/LastEndPTS to FFMS_VideoProperties

Author: moi15moi

doc/ffms2-api.md

@@ -1052,6 +1052,9 @@ typedef struct {
   unsigned int ContentLightLevelMax;
   unsigned int ContentLightLevelAverage;
   int Flip;
+  int64_t FirstPTS;
+  int64_t LastPTS;
+  int64_t LastEndPTS;
 } FFMS_VideoProperties;
 ```
 A struct containing metadata about a video track.
@@ -1094,6 +1097,8 @@ The fields are:
  - `unsigned int ContentLightLevelMax;` - Maximum content luminance (cd/m^2).
  - `unsigned int ContentLightLevelAverage;` - Average content luminance (cd/m^2).
  - `int Flip;` - Flip direction to be applied *before* rotation: 0 for no operation, >0 for horizontal flip, <0 for vertical flip.
+ - `int64_t FirstPTS; int64_t LastPTS;` - The first and last PTS of the stream respectively.
+ - `int64_t LastEndPTS;` - The end PTS of the last packet of the stream.
 
 ### FFMS_AudioProperties
 

doc/ffms2-changelog.md

@@ -2,6 +2,7 @@
 - 5.1
   - FFmpeg 7.1 is now the minimum requirement.
   - Added layered decoding support, for e.g. spatial MV-HEVC.
+  - Added FirstPTS, LastPTS and LastEndPTS to FFMS_VideoProperties. Those fields are the equivalent of FirstTime, LastTime and LastEndTime, but they are expressed in the video timebase.
 
 - 5.0
   - Fixed all issues with FFmpeg 6.1 which is now the minimum requirement

include/ffms.h

@@ -406,6 +406,10 @@ typedef struct FFMS_VideoProperties {
     unsigned int ContentLightLevelAverage;
     /* Introduced in FFMS_VERSION ((2 << 24) | (31 << 16) | (0 << 8) | 0) */
     int Flip; /* -1 = Vertical flip, 1 = Horizontal flip */
+    /* Introduced in FFMS_VERSION ((5 << 24) | (1 << 16) | (0 << 8) | 0) */
+    int64_t FirstPTS;
+    int64_t LastPTS;
+    int64_t LastEndPTS;
 } FFMS_VideoProperties;
 
 typedef struct FFMS_AudioProperties {

src/core/videosource.cpp

@@ -685,9 +685,12 @@ void FFMS_VideoSource::SetVideoProperties() {
         VP.ColorRange = AVCOL_RANGE_JPEG;
 
 
-    VP.FirstTime = ((Frames[Frames.RealFrameNumber(0)].PTS * Frames.TB.Num) / (double)Frames.TB.Den) / 1000;
-    VP.LastTime = ((Frames[Frames.RealFrameNumber(Frames.VisibleFrameCount()-1)].PTS * Frames.TB.Num) / (double)Frames.TB.Den) / 1000;
-    VP.LastEndTime = (((Frames[Frames.RealFrameNumber(Frames.VisibleFrameCount()-1)].PTS + Frames.LastDuration) * Frames.TB.Num) / (double)Frames.TB.Den) / 1000;
+    VP.FirstPTS = Frames[Frames.RealFrameNumber(0)].PTS;
+    VP.LastPTS = Frames[Frames.RealFrameNumber(Frames.VisibleFrameCount()-1)].PTS;
+    VP.LastEndPTS = VP.LastPTS + Frames.LastDuration;
+    VP.FirstTime = ((VP.FirstPTS * Frames.TB.Num) / (double)Frames.TB.Den) / 1000;
+    VP.LastTime = ((VP.LastPTS * Frames.TB.Num) / (double)Frames.TB.Den) / 1000;
+    VP.LastEndTime = ((VP.LastEndPTS * Frames.TB.Num) / (double)Frames.TB.Den) / 1000;
 
     if (CodecContext->width <= 0 || CodecContext->height <= 0)
         throw FFMS_Exception(FFMS_ERROR_DECODING, FFMS_ERROR_CODEC,