- of->ctx = oc;
- of->ost_index = nb_output_streams - oc->nb_streams;
- of->recording_time = o->recording_time;
- if (o->recording_time != INT64_MAX)
- oc->duration = o->recording_time;
- of->start_time = o->start_time;
- of->limit_filesize = o->limit_filesize;
- of->shortest = o->shortest;
- av_dict_copy(&of->opts, o->g->format_opts, 0);
+ /* check if all codec options have been used */
+ unused_opts = strip_specifiers(o->g->codec_opts);
+ for (i = of->ost_index; i < nb_output_streams; i++) {
+ e = NULL;
+ while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
+ AV_DICT_IGNORE_SUFFIX)))
+ av_dict_set(&unused_opts, e->key, NULL, 0);
+ }
+
+ e = NULL;
+ while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
+ const AVClass *class = avcodec_get_class();
+ const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
+ AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
+ if (!option)
+ continue;
+ if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
+ av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
+ "output file #%d (%s) is not an encoding option.\n", e->key,
+ option->help ? option->help : "", nb_output_files - 1,
+ filename);
+ exit_program(1);
+ }
+
+ av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
+ "output file #%d (%s) has not been used for any stream. The most "
+ "likely reason is either wrong type (e.g. a video option with "
+ "no video streams) or that it is a private option of some encoder "
+ "which was not actually used for any stream.\n", e->key,
+ option->help ? option->help : "", nb_output_files - 1, filename);
+ }
+ av_dict_free(&unused_opts);
+
+ /* set the encoding/decoding_needed flags */
+ for (i = of->ost_index; i < nb_output_streams; i++) {
+ OutputStream *ost = output_streams[i];
+
+ ost->encoding_needed = !ost->stream_copy;
+ if (ost->encoding_needed && ost->source_index >= 0) {
+ InputStream *ist = input_streams[ost->source_index];
+ ist->decoding_needed = 1;
+ }
+ }