- img_convert_ctx = sws_getContext(is->video_st->codec->width,
- is->video_st->codec->height, is->video_st->codec->pix_fmt,
- is->video_st->codec->width, is->video_st->codec->height,
- dst_pix_fmt, sws_flags, NULL, NULL, NULL);
- if (img_convert_ctx == NULL) {
- fprintf(stderr, "Cannot initialize the conversion context\n");
- exit(1);
- }