[FFmpeg-devel] [PATCH] Add init_program_date_time so start time can be specified
Dave Johansen
davejohansen at gmail.com
Tue Oct 17 18:51:00 EEST 2023
---
doc/muxers.texi | 3 +++
libavformat/hlsenc.c | 7 ++++++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/doc/muxers.texi b/doc/muxers.texi
index f6071484ff..87c19a5cb9 100644
--- a/doc/muxers.texi
+++ b/doc/muxers.texi
@@ -1086,6 +1086,9 @@ seeking. This flag should be used with the @code{hls_time} option.
@item program_date_time
Generate @code{EXT-X-PROGRAM-DATE-TIME} tags.
+ at item init_program_date_time
+Time to start program date time at.
+
@item second_level_segment_index
Makes it possible to use segment indexes as %%d in hls_segment_filename expression
besides date/time values when strftime is on.
diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
index 4ef84c05c1..474322cc21 100644
--- a/libavformat/hlsenc.c
+++ b/libavformat/hlsenc.c
@@ -28,6 +28,8 @@
#include <unistd.h>
#endif
+#include "float.h"
+
#include "libavutil/avassert.h"
#include "libavutil/mathematics.h"
#include "libavutil/avstring.h"
@@ -212,6 +214,8 @@ typedef struct HLSContext {
int64_t recording_time;
int64_t max_seg_size; // every segment file max size
+ double init_program_date_time;
+
char *baseurl;
char *vtt_format_options_str;
char *subtitle_filename;
@@ -2867,7 +2871,7 @@ static int hls_init(AVFormatContext *s)
char *p = NULL;
int http_base_proto = ff_is_http_proto(s->url);
int fmp4_init_filename_len = strlen(hls->fmp4_init_filename) + 1;
- double initial_program_date_time = av_gettime() / 1000000.0;
+ double initial_program_date_time = hls->init_program_date_time ? hls->init_program_date_time : av_gettime() / 1000000.0;
if (hls->use_localtime) {
pattern = get_default_pattern_localtime_fmt(s);
@@ -3141,6 +3145,7 @@ static const AVOption options[] = {
{"split_by_time", "split the hls segment by time which user set by hls_time", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SPLIT_BY_TIME }, 0, UINT_MAX, E, "flags"},
{"append_list", "append the new segments into old hls segment list", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_APPEND_LIST }, 0, UINT_MAX, E, "flags"},
{"program_date_time", "add EXT-X-PROGRAM-DATE-TIME", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_PROGRAM_DATE_TIME }, 0, UINT_MAX, E, "flags"},
+ {"init_program_date_time", "Time to start program date time at", OFFSET(init_program_date_time), AV_OPT_TYPE_DOUBLE, {.dbl = 0 }, 0, DBL_MAX, E},
{"second_level_segment_index", "include segment index in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_INDEX }, 0, UINT_MAX, E, "flags"},
{"second_level_segment_duration", "include segment duration in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_DURATION }, 0, UINT_MAX, E, "flags"},
{"second_level_segment_size", "include segment size in segment filenames when use_localtime", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SECOND_LEVEL_SEGMENT_SIZE }, 0, UINT_MAX, E, "flags"},
--
2.39.2 (Apple Git-143)
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