200     AVRational base = fFormatCtx->streams[fStreamIndex]->time_base;  in computeTimeStamp()
263     if (fFormatCtx == nullptr) {  in nextImage()
271         while (!av_read_frame(fFormatCtx, &fPacket)) {  in nextImage()
326     if (fFormatCtx) {  in reset()
327         avformat_close_input(&fFormatCtx);  in reset()
328         fFormatCtx = nullptr;  in reset()
362     fFormatCtx = avformat_alloc_context();  in loadStream()
363     if (!fFormatCtx) {  in loadStream()
367     fFormatCtx->pb = fStreamCtx;  in loadStream()
369     int err = avformat_open_input(&fFormatCtx, nullptr, nullptr, nullptr);  in loadStream()
376     fStreamIndex = av_find_best_stream(fFormatCtx, AVMEDIA_TYPE_VIDEO, -1, -1, &codec, 0);  in loadStream()
386     AVStream* strm = fFormatCtx->streams[fStreamIndex];  in loadStream()
410     if (!fFormatCtx) {  in dimensions()
414     AVStream* strm = fFormatCtx->streams[fStreamIndex];  in dimensions()
419     if (!fFormatCtx) {  in duration()
423     AVStream* strm = fFormatCtx->streams[fStreamIndex];  in duration()