65   fprintf(stderr, "%p %s ", (void *) ctx, sev);  in log_callback()
68   vfprintf(stderr, fmt, ap);  in log_callback()
71   fprintf(stderr, "\n");  in log_callback()
112   fprintf(stderr, "media has %u tracks and duration %fs\n", tracks, duration / 1e9);  in main()
118     fprintf(stderr, "track %u: type: %d codec: %d", i,  in main()
125       fprintf(stderr, " (%p, %u)", codec_data, (unsigned int) length);  in main()
131       fprintf(stderr, " video: %ux%u (d: %ux%u %ux%ux%ux%u)",  in main()
139       fprintf(stderr, " audio: %.2fhz %u bit %u channels",  in main()
144     fprintf(stderr, "\n");  in main()
150   fprintf(stderr, "seek to middle\n");  in main()
155     fprintf(stderr, "middle ");  in main()
163       fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);  in main()
168       fprintf(stderr, "middle seek failed\n");  in main()
174   fprintf(stderr, "seek to ~end\n");  in main()
179     fprintf(stderr, "end ");  in main()
187       fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);  in main()
192       fprintf(stderr, "end seek failed\n");  in main()
198   fprintf(stderr, "seek to ~start\n");  in main()
203     fprintf(stderr, "start ");  in main()
211       fprintf(stderr, "* t %u pts %f frames %u\n", track, tstamp / 1e9, cnt);  in main()
216       fprintf(stderr, "start seek failed\n");  in main()
228     fprintf(stderr, "t %u pts %f frames %u: ", pkt_track, pkt_tstamp / 1e9, pkt_cnt);  in main()
234       fprintf(stderr, "%u ", (unsigned int) size);  in main()
238     fprintf(stderr, "\n");  in main()