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avformat/dashenc: configuring container format options

This commit is contained in:
Vishwanath Dixit 2018-05-07 15:28:02 +05:30 committed by Karthick Jeyapal
parent 9a09f4c54a
commit e3518821c9
2 changed files with 11 additions and 0 deletions
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4
doc/muxers.texi
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@ -284,6 +284,10 @@ corrects that index value.
Typically this logic is needed in live streaming use cases. The network bandwidth
fluctuations are common during long run streaming. Each fluctuation can cause
the segment indexes fall behind the expected real time position.
@item -format_options @var{options_list}
Set container format (mp4/webm) options using a @code{:} separated list of
key=value parameters. Values containing @code{:} special characters must be
escaped.
@end table
@anchor{framecrc}

7
libavformat/dashenc.c
View File

@ -125,6 +125,7 @@ typedef struct DASHContext {
int streaming;
int64_t timeout;
int index_correction;
char *format_options_str;
} DASHContext;
static struct codec_string {
@ -1017,6 +1018,11 @@ static int dash_init(AVFormatContext *s)
av_dict_free(&opts);
os->init_start_pos = 0;
if (c->format_options_str) {
ret = av_dict_parse_string(&opts, c->format_options_str, "=", ":", 0);
if (ret < 0)
return ret;
}
if (!strcmp(os->format_name, "mp4")) {
if (c->streaming)
av_dict_set(&opts, "movflags", "frag_every_frame+dash+delay_moov", 0);
@ -1538,6 +1544,7 @@ static const AVOption options[] = {
{ "streaming", "Enable/Disable streaming mode of output. Each frame will be moof fragment", OFFSET(streaming), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
{ "timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E },
{ "index_correction", "Enable/Disable segment index correction logic", OFFSET(index_correction), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
{ "format_options","set list of options for the container format (mp4/webm) used for dash", OFFSET(format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
{ NULL },
};