AVFormatParameters params, *ap = ¶ms;
int eof=0;
+ ic = avformat_alloc_context();
+
video_index = -1;
audio_index = -1;
subtitle_index = -1;
memset(ap, 0, sizeof(*ap));
+ ap->prealloced_context = 1;
ap->width = frame_width;
ap->height= frame_height;
ap->time_base= (AVRational){1, 25};
ap->pix_fmt = frame_pix_fmt;
+ set_context_opts(ic, avformat_opts, AV_OPT_FLAG_DECODING_PARAM);
+
err = av_open_input_file(&ic, is->filename, is->iformat, 0, ap);
if (err < 0) {
print_error(is->filename, err);