43     MviDemuxContext *mvi = s->priv_data;  in read_header()  local
97 …mvi->get_int = (vst->codecpar->width * (int64_t)vst->codecpar->height < (1 << 16)) ? avio_rl16 : a…  in read_header()
99     mvi->audio_frame_size   = ((uint64_t)audio_data_size << MVI_FRAC_BITS) / frames_count;  in read_header()
100     if (mvi->audio_frame_size <= 1 << MVI_FRAC_BITS - 1) {  in read_header()
107 …mvi->audio_size_counter = (ast->codecpar->sample_rate * 830 / mvi->audio_frame_size - 1) * mvi->au…  in read_header()
108     mvi->audio_size_left    = audio_data_size;  in read_header()
116     MviDemuxContext *mvi = s->priv_data;  in read_packet()  local
119     if (mvi->video_frame_size == 0) {  in read_packet()
120         mvi->video_frame_size = (mvi->get_int)(pb);  in read_packet()
121         if (mvi->audio_size_left == 0)  in read_packet()
123         if (mvi->audio_size_counter + 512 > UINT64_MAX - mvi->audio_frame_size ||  in read_packet()
124 …   mvi->audio_size_counter + 512 + mvi->audio_frame_size >= ((uint64_t)INT32_MAX) << MVI_FRAC_BITS)  in read_packet()
127         count = (mvi->audio_size_counter + mvi->audio_frame_size + 512) >> MVI_FRAC_BITS;  in read_packet()
128         if (count > mvi->audio_size_left)  in read_packet()
129             count = mvi->audio_size_left;  in read_packet()
135         mvi->audio_size_left -= count;  in read_packet()
136         mvi->audio_size_counter += mvi->audio_frame_size - (count << MVI_FRAC_BITS);  in read_packet()
138         if ((ret = av_get_packet(pb, pkt, mvi->video_frame_size)) < 0)  in read_packet()
141         mvi->video_frame_size = 0;  in read_packet()