Required for future metadata format.
Originally committed as revision 26100 to svn://svn.ffmpeg.org/ffmpeg/trunk
nb_ostreams = 0;
for(i=0;i<nb_output_files;i++) {
os = output_files[i];
- if (!os->nb_streams) {
+ if (!os->nb_streams && !(os->oformat->flags & AVFMT_NOSTREAMS)) {
dump_format(output_files[i], i, output_files[i]->filename, 1);
fprintf(stderr, "Output file #%d does not contain any stream\n", i);
ret = AVERROR(EINVAL);
#define AVFMT_TS_DISCONT 0x0200 /**< Format allows timestamp discontinuities. Note, muxers always require valid (monotone) timestamps */
#define AVFMT_VARIABLE_FPS 0x0400 /**< Format allows variable fps. */
#define AVFMT_NODIMENSIONS 0x0800 /**< Format does not need width/height */
+#define AVFMT_NOSTREAMS 0x1000 /**< Format does not require any streams */
typedef struct AVOutputFormat {
const char *name;
AVStream *st;
// some sanity checks
- if (s->nb_streams == 0) {
+ if (s->nb_streams == 0 && !(s->oformat->flags & AVFMT_NOSTREAMS)) {
av_log(s, AV_LOG_ERROR, "no streams\n");
return AVERROR(EINVAL);
}
#endif
/* set muxer identification string */
- if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) {
+ if (s->nb_streams && !(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) {
av_metadata_set2(&s->metadata, "encoder", LIBAVFORMAT_IDENT, 0);
}