- for (int i = 0; i < name_index; ++i) {
- size_t const s = t.find (' ');
- if (s != string::npos) {
- t = t.substr (s + 1);
+ if (accurate) {
+ while (1) {
+ int r = av_read_frame (_format_context, &_packet);
+ if (r < 0) {
+ return true;
+ }
+
+ avcodec_get_frame_defaults (_frame);
+
+ if (_packet.stream_index == _video_stream) {
+ int finished = 0;
+ int const r = avcodec_decode_video2 (_video_codec_context, _frame, &finished, &_packet);
+ if (r >= 0 && finished) {
+ int64_t const bet = av_frame_get_best_effort_timestamp (_frame);
+ if (bet > vt) {
+ break;
+ }
+ }
+ }
+
+ av_free_packet (&_packet);