Ejemplos de CVImageBufferGetDisplaySize en C++ (Cpp)

Ejemplo n.º 1

Archivo: vda.c Proyecto: Bibamaru/showtime

static void
emit_frame(vda_decoder_t *vdad, vda_frame_t *vf, media_queue_t *mq)
{
  int i;
  CGSize siz;

  frame_info_t fi;
  memset(&fi, 0, sizeof(fi));

  CVPixelBufferLockBaseAddress(vf->vf_buf, 0);

  for(i = 0; i < 3; i++ ) {
    fi.fi_data[i] = CVPixelBufferGetBaseAddressOfPlane(vf->vf_buf, i);
    fi.fi_pitch[i] = CVPixelBufferGetBytesPerRowOfPlane(vf->vf_buf, i);
  }
  
  if(vdad->vdad_last_pts != PTS_UNSET && vf->vf_pts != PTS_UNSET) {
    int64_t d = vf->vf_pts - vdad->vdad_last_pts;

    if(d > 1000 && d < 1000000)
      vdad->vdad_estimated_duration = d;
  }


  siz = CVImageBufferGetEncodedSize(vf->vf_buf);
  fi.fi_type = 'YUVP';
  fi.fi_width = siz.width;
  fi.fi_height = siz.height;

  fi.fi_duration = vf->vf_duration > 10000 ? vf->vf_duration : vdad->vdad_estimated_duration;

  siz = CVImageBufferGetDisplaySize(vf->vf_buf);
  fi.fi_dar_num = siz.width;
  fi.fi_dar_den = siz.height;

  fi.fi_pts = vf->vf_pts;
  fi.fi_color_space = -1;
  fi.fi_epoch = vf->vf_epoch;
  fi.fi_drive_clock = 1;
  fi.fi_vshift = 1;
  fi.fi_hshift = 1;

  video_decoder_t *vd = vdad->vdad_vd;

  vd->vd_estimated_duration = fi.fi_duration; // For bitrate calculations

  if(fi.fi_duration > 0)
    video_deliver_frame(vd, &fi);

  CVPixelBufferUnlockBaseAddress(vf->vf_buf, 0);
  vdad->vdad_last_pts = vf->vf_pts;

  char fmt[64];
  snprintf(fmt, sizeof(fmt), "h264 (VDA) %d x %d", fi.fi_width, fi.fi_height);
  prop_set_string(mq->mq_prop_codec, fmt);

}

Ejemplo n.º 2

Archivo: vtb.c Proyecto: Ezio-PS/movian

static void
emit_frame(vtb_decoder_t *vtbd, vtb_frame_t *vf, media_queue_t *mq)
{
  CGSize siz;

  frame_info_t fi;
  memset(&fi, 0, sizeof(fi));

  if(vtbd->vtbd_last_pts != PTS_UNSET && vf->vf_mbm.mbm_pts != PTS_UNSET) {
    int64_t d = vf->vf_mbm.mbm_pts - vtbd->vtbd_last_pts;

    if(d > 1000 && d < 1000000)
      vtbd->vtbd_estimated_duration = d;
  }

  siz = CVImageBufferGetDisplaySize(vf->vf_buf);
  fi.fi_dar_num = siz.width;
  fi.fi_dar_den = siz.height;

  fi.fi_pts = vf->vf_mbm.mbm_pts;
  fi.fi_color_space = -1;
  fi.fi_epoch = vf->vf_mbm.mbm_epoch;
  fi.fi_drive_clock = vf->vf_mbm.mbm_drive_clock;
  fi.fi_user_time = vf->vf_mbm.mbm_user_time;
  fi.fi_vshift = 1;
  fi.fi_hshift = 1;
  fi.fi_duration = vf->vf_mbm.mbm_duration > 10000 ? vf->vf_mbm.mbm_duration : vtbd->vtbd_estimated_duration;

  siz = CVImageBufferGetEncodedSize(vf->vf_buf);
  fi.fi_width = siz.width;
  fi.fi_height = siz.height;


  video_decoder_t *vd = vtbd->vtbd_vd;
  vd->vd_estimated_duration = fi.fi_duration; // For bitrate calculations

  switch(vtbd->vtbd_pixel_format) {
    case kCVPixelFormatType_420YpCbCr8Planar:
      fi.fi_type = 'YUVP';

      CVPixelBufferLockBaseAddress(vf->vf_buf, 0);

      for(int i = 0; i < 3; i++ ) {
        fi.fi_data[i]  = CVPixelBufferGetBaseAddressOfPlane(vf->vf_buf, i);
        fi.fi_pitch[i] = CVPixelBufferGetBytesPerRowOfPlane(vf->vf_buf, i);
      }

      if(fi.fi_duration > 0)
        video_deliver_frame(vd, &fi);

      CVPixelBufferUnlockBaseAddress(vf->vf_buf, 0);
      break;

    case kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange:
    case kCVPixelFormatType_420YpCbCr8BiPlanarFullRange:
      fi.fi_type = 'CVPB';
      fi.fi_data[0] = (void *)vf->vf_buf;
      if(fi.fi_duration > 0)
        video_deliver_frame(vd, &fi);
      break;
  }



  vtbd->vtbd_last_pts = vf->vf_mbm.mbm_pts;

  char fmt[64];
  snprintf(fmt, sizeof(fmt), "h264 (VTB) %d x %d", fi.fi_width, fi.fi_height);
  prop_set_string(mq->mq_prop_codec, fmt);
}