Originally committed as revision 134 to svn://svn.ffmpeg.org/ffmpeg/trunk
use_video = file_format->video_codec != CODEC_ID_NONE;
use_audio = file_format->audio_codec != CODEC_ID_NONE;
- /* disable if no corresponding type found */
- check_audio_video_inputs(&input_has_video, &input_has_audio);
- if (!input_has_video)
- use_video = 0;
- if (!input_has_audio)
- use_audio = 0;
+ /* disable if no corresponding type found and at least one
+ input file */
+ if (nb_input_files > 0) {
+ check_audio_video_inputs(&input_has_video, &input_has_audio);
+ if (!input_has_video)
+ use_video = 0;
+ if (!input_has_audio)
+ use_audio = 0;
+ }
/* manual disable */
if (audio_disable) {