Override the inner container format, by default it is guessed by the filename
extension.
+@item segment_format_options @var{options_list}
+Set output format options using a :-separated list of key=value
+parameters. Values containing the @code{:} special character must be
+escaped.
+
@item segment_list @var{name}
Generate also a listfile named @var{name}. If not specified no
listfile is generated.
@end example
@item
+Segment input and set output format options for the output segments:
+@example
+ffmpeg -i in.mkv -f segment -segment_time 10 -segment_format_options movflags=+faststart out%03d.mp4
+@end example
+
+@item
As the example above, but segment the input file according to the split
points specified by the @var{segment_times} option:
@example
int segment_count; ///< number of segment files already written
AVOutputFormat *oformat;
AVFormatContext *avf;
- char *format; ///< format to use for output segment files
+ char *format; ///< format to use for output segment files
+ char *format_options_str; ///< format options to use for output segment files
+ AVDictionary *format_options;
char *list; ///< filename for the segment list file
int list_flags; ///< flags affecting list generation
int list_size; ///< number of entries for the segment list file
{
SegmentContext *seg = s->priv_data;
AVFormatContext *oc = NULL;
+ AVDictionary *options = NULL;
int ret;
seg->segment_count = 0;
}
}
+ if (seg->format_options_str) {
+ ret = av_dict_parse_string(&seg->format_options, seg->format_options_str, "=", ":", 0);
+ if (ret < 0) {
+ av_log(s, AV_LOG_ERROR, "Could not parse format options list '%s'\n",
+ seg->format_options_str);
+ goto fail;
+ }
+ }
+
if (seg->list) {
if (seg->list_type == LIST_TYPE_UNDEFINED) {
if (av_match_ext(seg->list, "csv" )) seg->list_type = LIST_TYPE_CSV;
goto fail;
}
- if ((ret = avformat_write_header(oc, NULL)) < 0) {
+ av_dict_copy(&options, seg->format_options, 0);
+ ret = avformat_write_header(oc, &options);
+ if (av_dict_count(options)) {
+ av_log(s, AV_LOG_ERROR,
+ "Some of the provided format options in '%s' are not recognized\n", seg->format_options_str);
+ }
+ av_dict_free(&options);
+ if (ret < 0) {
avio_close(oc->pb);
goto fail;
}
if (seg->list)
avio_close(seg->list_pb);
+ av_dict_free(&seg->format_options);
av_opt_free(seg);
av_freep(&seg->times);
av_freep(&seg->frames);
static const AVOption options[] = {
{ "reference_stream", "set reference stream", OFFSET(reference_stream_specifier), AV_OPT_TYPE_STRING, {.str = "auto"}, CHAR_MIN, CHAR_MAX, E },
{ "segment_format", "set container format used for the segments", OFFSET(format), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
+ { "segment_format_options", "set list of options for the container format used for the segments", OFFSET(format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
{ "segment_list", "set the segment list filename", OFFSET(list), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
{ "segment_list_flags","set flags affecting segment list generation", OFFSET(list_flags), AV_OPT_TYPE_FLAGS, {.i64 = SEGMENT_LIST_FLAG_CACHE }, 0, UINT_MAX, E, "list_flags"},