git.sesse.net Git - bmusb/blob - main.cpp

   1 #include <stdio.h>
   2 #include <unistd.h>
   3 #include "bmusb.h"
   4
   5 using namespace std;
   6
   7 void check_frame_stability(uint16_t timecode,
   8                            FrameAllocator::Frame video_frame, size_t video_offset, uint16_t video_format,
   9                            FrameAllocator::Frame audio_frame, size_t audio_offset, uint16_t audio_format)
  10 {
  11         //printf("0x%04x: %d video bytes (format 0x%04x), %d audio bytes (format 0x%04x)\n",
  12         //      timecode, video_end - video_start, video_format, audio_end - audio_start, audio_format);
  13
  14         static uint16_t last_timecode = 0;
  15         static size_t last_video_bytes = 0;
  16         static size_t last_audio_bytes = 0;
  17
  18         if (!(last_timecode == 0 && last_video_bytes == 0 && last_audio_bytes == 0)) {
  19                 if (timecode != (uint16_t)(last_timecode + 1)) {
  20                         printf("0x%04x: Dropped %d frames\n", timecode, timecode - last_timecode - 1);
  21                 } else if (last_video_bytes != video_frame.len - video_offset) {
  22                         printf("0x%04x: Video frame size changed (old=%d, cur=%d)\n", timecode,
  23                                 last_video_bytes, video_frame.len - video_offset);
  24                 } else if (last_audio_bytes != audio_frame.len - audio_offset) {
  25                         printf("0x%04x: Audio block size changed (old=%d, cur=%d)\n", timecode,
  26                                 last_audio_bytes, audio_frame.len - audio_offset);
  27                 }
  28         }
  29         last_timecode = timecode;
  30         last_video_bytes = video_frame.len - video_offset;
  31         last_audio_bytes = audio_frame.len - audio_offset;
  32
  33         get_video_frame_allocator()->release_frame(video_frame);
  34         get_audio_frame_allocator()->release_frame(audio_frame);
  35 }
  36
  37 int main(int argc, char **argv)
  38 {
  39         set_frame_callback(check_frame_stability);
  40         start_bm_capture();
  41         sleep(1000000);
  42 }
  43