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segment: Add an option to prepend a string to the list entries 

Useful to generate lists with absolute urls.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Enrique Arizón Benito 2014-03-18 21:18:59 +01:00 committed by Luca Barbato
parent a61c2115fb
commit 5c08ae4f37
2 changed files with 7 additions and 0 deletions
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2
doc/muxers.texi
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@ -480,6 +480,8 @@ Set segment duration to @var{t} seconds.
Generate also a listfile named @var{name}.
@item segment_list_size @var{size}
Overwrite the listfile once it reaches @var{size} entries.
@item segment_list_entry_prefix @var{prefix}
Prepend @var{prefix} to each entry. Useful to generate absolute paths.
@item segment_wrap @var{limit}
Wrap around segment index once it reaches @var{limit}.
@end table

5
libavformat/segment.c
View File

@ -37,6 +37,7 @@ typedef struct {
AVFormatContext *avf;
char *format; /**< Set by a private option. */
char *list; /**< Set by a private option. */
char *entry_prefix; /**< Set by a private option. */
int list_type; /**< Set by a private option. */
float time; /**< Set by a private option. */
int size; /**< Set by a private option. */
@ -97,6 +98,9 @@ static int segment_hls_window(AVFormatContext *s, int last)
for (i = FFMAX(0, seg->number - seg->size);
i < seg->number; i++) {
avio_printf(seg->pb, "#EXTINF:%d,\n", (int)seg->time);
if (seg->entry_prefix != NULL) {
avio_printf(seg->pb, "%s", seg->entry_prefix);
}
av_get_frame_filename(buf, sizeof(buf), s->filename, i);
avio_printf(seg->pb, "%s\n", buf);
}
@ -363,6 +367,7 @@ static const AVOption options[] = {
{ "flat", "plain list (default)", 0, AV_OPT_TYPE_CONST, {.i64 = LIST_FLAT}, 0, 0, E, "list_type" },
{ "hls", "Apple HTTP Live Streaming compatible", 0, AV_OPT_TYPE_CONST, {.i64 = LIST_HLS}, 0, 0, E, "list_type" },
{ "segment_wrap", "number after which the index wraps", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E },
{ "segment_list_entry_prefix", "base url prefix for segments", OFFSET(entry_prefix), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
{ "individual_header_trailer", "write header/trailer to each segment", OFFSET(individual_header_trailer), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, E },
{ "write_header_trailer", "write a header to the first segment and a trailer to the last one", OFFSET(write_header_trailer), AV_OPT_TYPE_INT, {.i64 = 1}, 0, 1, E },
{ NULL },