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lavf/segment: add segment_format_options option

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This commit is contained in:
Stefano Sabatini 2014-09-06 15:43:11 +02:00
parent 2c5c37ade1
commit 4f5493fe23
3 changed files with 35 additions and 3 deletions
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11
doc/muxers.texi
View File

@ -804,6 +804,11 @@ reference stream. The default value is @code{auto}.
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.
@ -958,6 +963,12 @@ generated segments to @file{out.list}:
ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.list out%03d.nut
@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:

23
libavformat/segment.c
View File

@ -73,6 +73,8 @@ typedef struct {
AVOutputFormat *oformat;
AVFormatContext *avf;
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
@ -563,6 +565,7 @@ static int seg_write_header(AVFormatContext *s)
{
SegmentContext *seg = s->priv_data;
AVFormatContext *oc = NULL;
AVDictionary *options = NULL;
int ret;
seg->segment_count = 0;
@ -594,6 +597,15 @@ static int seg_write_header(AVFormatContext *s)
}
}
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;
@ -645,7 +657,14 @@ static int seg_write_header(AVFormatContext *s)
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;
}
@ -799,6 +818,7 @@ 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);
@ -820,6 +840,7 @@ fail:
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"},

2
libavformat/version.h
View File

@ -31,7 +31,7 @@
#define LIBAVFORMAT_VERSION_MAJOR 56
#define LIBAVFORMAT_VERSION_MINOR 4
#define LIBAVFORMAT_VERSION_MICRO 100
#define LIBAVFORMAT_VERSION_MICRO 101
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \