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avformat/hlsenc: added segment filename option
This option allows segment filenames to be specified. Unless -hls_flags single_file is set the filename is used as a string format with the segment number. Example: ffmpeg -f lavfi -i testsrc -c:v h264 -map 0 -hls_segment_filename bar%03d.ts foo.m3u8 Signed-off-by: Christian Suloway <csuloway@globaleagleent.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -254,6 +254,15 @@ and it is not to be confused with the segment filename sequence number
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which can be cyclic, for example if the @option{wrap} option is
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specified.
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@item hls_segment_filename @var{filename}
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Set the segment filename. Unless hls_flags single_file is set @var{filename}
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is used as a string format with the segment number:
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@example
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ffmpeg in.nut -hls_segment_filename 'file%03d.ts' out.m3u8
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@end example
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This example will produce the playlist, @file{out.m3u8}, and segment files:
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@file{file000.ts}, @file{file001.ts}, @file{file002.ts}, etc.
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@item hls_flags single_file
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If this flag is set, the muxer will store all segments in a single MPEG-TS
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file, and will use byte ranges in the playlist. HLS playlists generated with
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@ -59,6 +59,7 @@ typedef struct HLSContext {
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int max_nb_segments; // Set by a private option.
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int wrap; // Set by a private option.
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uint32_t flags; // enum HLSFlags
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char *segment_filename;
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int allowcache;
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int64_t recording_time;
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@ -237,15 +238,12 @@ static int hls_write_header(AVFormatContext *s)
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char *p;
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const char *pattern = "%d.ts";
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AVDictionary *options = NULL;
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int basename_size = strlen(s->filename) + strlen(pattern) + 1;
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int basename_size;
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hls->sequence = hls->start_sequence;
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hls->recording_time = hls->time * AV_TIME_BASE;
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hls->start_pts = AV_NOPTS_VALUE;
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if (hls->flags & HLS_SINGLE_FILE)
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pattern = ".ts";
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if (hls->format_options_str) {
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ret = av_dict_parse_string(&hls->format_options, hls->format_options_str, "=", ":", 0);
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if (ret < 0) {
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@ -270,22 +268,31 @@ static int hls_write_header(AVFormatContext *s)
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goto fail;
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}
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hls->basename = av_malloc(basename_size);
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if (hls->segment_filename) {
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hls->basename = av_strdup(hls->segment_filename);
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if (!hls->basename) {
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ret = AVERROR(ENOMEM);
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goto fail;
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}
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} else {
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if (hls->flags & HLS_SINGLE_FILE)
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pattern = ".ts";
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if (!hls->basename) {
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ret = AVERROR(ENOMEM);
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goto fail;
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basename_size = strlen(s->filename) + strlen(pattern) + 1;
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hls->basename = av_malloc(basename_size);
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if (!hls->basename) {
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ret = AVERROR(ENOMEM);
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goto fail;
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}
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av_strlcpy(hls->basename, s->filename, basename_size);
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p = strrchr(hls->basename, '.');
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if (p)
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*p = '\0';
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av_strlcat(hls->basename, pattern, basename_size);
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}
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strcpy(hls->basename, s->filename);
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p = strrchr(hls->basename, '.');
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if (p)
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*p = '\0';
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av_strlcat(hls->basename, pattern, basename_size);
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if ((ret = hls_mux_init(s)) < 0)
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goto fail;
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@ -410,6 +417,7 @@ static const AVOption options[] = {
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{"hls_wrap", "set number after which the index wraps", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
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{"hls_allow_cache", "explicitly set whether the client MAY (1) or MUST NOT (0) cache media segments", OFFSET(allowcache), AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX, E},
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{"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
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{"hls_segment_filename", "filename template for segment files", OFFSET(segment_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
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{"hls_flags", "set flags affecting HLS playlist and media file generation", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64 = 0 }, 0, UINT_MAX, E, "flags"},
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{"single_file", "generate a single media file indexed with byte ranges", 0, AV_OPT_TYPE_CONST, {.i64 = HLS_SINGLE_FILE }, 0, UINT_MAX, E, "flags"},
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