summaryrefslogtreecommitdiff
path: root/libavformat/segment.c
diff options
context:
space:
mode:
Diffstat (limited to 'libavformat/segment.c')
-rw-r--r--libavformat/segment.c410
1 files changed, 300 insertions, 110 deletions
diff --git a/libavformat/segment.c b/libavformat/segment.c
index fd5283560e..b6697e0940 100644
--- a/libavformat/segment.c
+++ b/libavformat/segment.c
@@ -1,5 +1,4 @@
/*
- * Generic segmenter
* Copyright (c) 2011, Luca Barbato
*
* This file is part of Libav.
@@ -19,40 +18,80 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+/**
+ * @file generic segmenter
+ * M3U8 specification can be find here:
+ * @url{http://tools.ietf.org/id/draft-pantos-http-live-streaming-08.txt}
+ */
+
#include <float.h>
#include "avformat.h"
#include "internal.h"
+#include "libavutil/avassert.h"
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/avstring.h"
#include "libavutil/parseutils.h"
#include "libavutil/mathematics.h"
+typedef enum {
+ LIST_TYPE_UNDEFINED = -1,
+ LIST_TYPE_FLAT = 0,
+ LIST_TYPE_CSV,
+ LIST_TYPE_M3U8,
+ LIST_TYPE_EXT, ///< deprecated
+ LIST_TYPE_NB,
+} ListType;
+
+
+#define SEGMENT_LIST_FLAG_CACHE 1
+#define SEGMENT_LIST_FLAG_LIVE 2
+
typedef struct {
const AVClass *class; /**< Class for private options. */
- int number;
+ int segment_idx; ///< index of the segment file to write, starting from 0
+ int segment_idx_wrap; ///< number after which the index wraps
+ int segment_count; ///< number of segment files already written
AVOutputFormat *oformat;
AVFormatContext *avf;
- char *format; /**< Set by a private option. */
- char *list; /**< 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. */
- int wrap; /**< Set by a private option. */
+ char *format; ///< format to use for output segment files
+ char *list; ///< filename for the segment list file
+ int list_count; ///< list counter
+ int list_flags; ///< flags affecting list generation
+ int list_size; ///< number of entries for the segment list file
+ double list_max_segment_time; ///< max segment time in the current list
+ ListType list_type; ///< set the list type
+ AVIOContext *list_pb; ///< list file put-byte context
+ char *time_str; ///< segment duration specification string
+ int64_t time; ///< segment duration
+ char *times_str; ///< segment times specification string
+ int64_t *times; ///< list of segment interval specification
+ int nb_times; ///< number of elments in the times array
+ char *time_delta_str; ///< approximation value duration used for the segment times
+ int64_t time_delta;
int individual_header_trailer; /**< Set by a private option. */
int write_header_trailer; /**< Set by a private option. */
- int64_t offset_time;
- int64_t recording_time;
int has_video;
- AVIOContext *pb;
+ double start_time, end_time;
} SegmentContext;
-enum {
- LIST_FLAT,
- LIST_HLS
-};
+static void print_csv_escaped_str(AVIOContext *ctx, const char *str)
+{
+ int needs_quoting = !!str[strcspn(str, "\",\n\r")];
+
+ if (needs_quoting)
+ avio_w8(ctx, '"');
+
+ for (; *str; str++) {
+ if (*str == '"')
+ avio_w8(ctx, '"');
+ avio_w8(ctx, *str);
+ }
+ if (needs_quoting)
+ avio_w8(ctx, '"');
+}
static int segment_mux_init(AVFormatContext *s)
{
@@ -78,36 +117,6 @@ static int segment_mux_init(AVFormatContext *s)
return 0;
}
-static int segment_hls_window(AVFormatContext *s, int last)
-{
- SegmentContext *seg = s->priv_data;
- int i, ret = 0;
- char buf[1024];
-
- if ((ret = avio_open2(&seg->pb, seg->list, AVIO_FLAG_WRITE,
- &s->interrupt_callback, NULL)) < 0)
- goto fail;
-
- avio_printf(seg->pb, "#EXTM3U\n");
- avio_printf(seg->pb, "#EXT-X-VERSION:3\n");
- avio_printf(seg->pb, "#EXT-X-TARGETDURATION:%d\n", (int)seg->time);
- avio_printf(seg->pb, "#EXT-X-MEDIA-SEQUENCE:%d\n",
- FFMAX(0, seg->number - seg->size));
-
- for (i = FFMAX(0, seg->number - seg->size);
- i < seg->number; i++) {
- avio_printf(seg->pb, "#EXTINF:%d,\n", (int)seg->time);
- av_get_frame_filename(buf, sizeof(buf), s->filename, i);
- avio_printf(seg->pb, "%s\n", buf);
- }
-
- if (last)
- avio_printf(seg->pb, "#EXT-X-ENDLIST\n");
-fail:
- avio_closep(&seg->pb);
- return ret;
-}
-
static int segment_start(AVFormatContext *s, int write_header)
{
SegmentContext *c = s->priv_data;
@@ -122,12 +131,15 @@ static int segment_start(AVFormatContext *s, int write_header)
oc = c->avf;
}
- if (c->wrap)
- c->number %= c->wrap;
+ if (c->segment_idx_wrap)
+ c->segment_idx %= c->segment_idx_wrap;
if (av_get_frame_filename(oc->filename, sizeof(oc->filename),
- s->filename, c->number++) < 0)
+ s->filename, c->segment_idx++) < 0) {
+ av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", s->filename);
return AVERROR(EINVAL);
+ }
+ c->segment_count++;
if ((err = avio_open2(&oc->pb, oc->filename, AVIO_FLAG_WRITE,
&s->interrupt_callback, NULL)) < 0)
@@ -144,18 +156,139 @@ static int segment_start(AVFormatContext *s, int write_header)
return 0;
}
-static int segment_end(AVFormatContext *oc, int write_trailer)
+static int segment_list_open(AVFormatContext *s)
+{
+ SegmentContext *seg = s->priv_data;
+ int ret;
+
+ ret = avio_open2(&seg->list_pb, seg->list, AVIO_FLAG_WRITE,
+ &s->interrupt_callback, NULL);
+ if (ret < 0)
+ return ret;
+ seg->list_max_segment_time = 0;
+
+ if (seg->list_type == LIST_TYPE_M3U8) {
+ avio_printf(seg->list_pb, "#EXTM3U\n");
+ avio_printf(seg->list_pb, "#EXT-X-VERSION:3\n");
+ avio_printf(seg->list_pb, "#EXT-X-MEDIA-SEQUENCE:%d\n", seg->list_count);
+ avio_printf(seg->list_pb, "#EXT-X-ALLOWCACHE:%d\n",
+ !!(seg->list_flags & SEGMENT_LIST_FLAG_CACHE));
+ if (seg->list_flags & SEGMENT_LIST_FLAG_LIVE)
+ avio_printf(seg->list_pb,
+ "#EXT-X-TARGETDURATION:%"PRId64"\n", seg->time / 1000000);
+ }
+
+ return ret;
+}
+
+static void segment_list_close(AVFormatContext *s)
{
+ SegmentContext *seg = s->priv_data;
+
+ if (seg->list_type == LIST_TYPE_M3U8) {
+ if (!(seg->list_flags & SEGMENT_LIST_FLAG_LIVE))
+ avio_printf(seg->list_pb, "#EXT-X-TARGETDURATION:%d\n",
+ (int)ceil(seg->list_max_segment_time));
+ avio_printf(seg->list_pb, "#EXT-X-ENDLIST\n");
+ }
+ seg->list_count++;
+
+ avio_close(seg->list_pb);
+}
+
+static int segment_end(AVFormatContext *s, int write_trailer)
+{
+ SegmentContext *seg = s->priv_data;
+ AVFormatContext *oc = seg->avf;
int ret = 0;
av_write_frame(oc, NULL); /* Flush any buffered data (fragmented mp4) */
if (write_trailer)
- av_write_trailer(oc);
+ ret = av_write_trailer(oc);
+
+ if (ret < 0)
+ av_log(s, AV_LOG_ERROR, "Failure occurred when ending segment '%s'\n",
+ oc->filename);
+
+ if (seg->list) {
+ if (seg->list_size && !(seg->segment_count % seg->list_size)) {
+ segment_list_close(s);
+ if ((ret = segment_list_open(s)) < 0)
+ goto end;
+ }
+
+ if (seg->list_type == LIST_TYPE_FLAT) {
+ avio_printf(seg->list_pb, "%s\n", oc->filename);
+ } else if (seg->list_type == LIST_TYPE_CSV || seg->list_type == LIST_TYPE_EXT) {
+ print_csv_escaped_str(seg->list_pb, oc->filename);
+ avio_printf(seg->list_pb, ",%f,%f\n", seg->start_time, seg->end_time);
+ } else if (seg->list_type == LIST_TYPE_M3U8) {
+ avio_printf(seg->list_pb, "#EXTINF:%f,\n%s\n",
+ seg->end_time - seg->start_time, oc->filename);
+ }
+ seg->list_max_segment_time = FFMAX(seg->end_time - seg->start_time, seg->list_max_segment_time);
+ avio_flush(seg->list_pb);
+ }
+
+end:
avio_close(oc->pb);
return ret;
}
+static int parse_times(void *log_ctx, int64_t **times, int *nb_times,
+ const char *times_str)
+{
+ char *p;
+ int i, ret = 0;
+ char *times_str1 = av_strdup(times_str);
+ char *saveptr = NULL;
+
+ if (!times_str1)
+ return AVERROR(ENOMEM);
+
+#define FAIL(err) ret = err; goto end
+
+ *nb_times = 1;
+ for (p = times_str1; *p; p++)
+ if (*p == ',')
+ (*nb_times)++;
+
+ *times = av_malloc(sizeof(**times) * *nb_times);
+ if (!*times) {
+ av_log(log_ctx, AV_LOG_ERROR, "Could not allocate forced times array\n");
+ FAIL(AVERROR(ENOMEM));
+ }
+
+ p = times_str1;
+ for (i = 0; i < *nb_times; i++) {
+ int64_t t;
+ char *tstr = av_strtok(p, ",", &saveptr);
+ av_assert0(tstr);
+ p = NULL;
+
+ ret = av_parse_time(&t, tstr, 1);
+ if (ret < 0) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "Invalid time duration specification in %s\n", p);
+ FAIL(AVERROR(EINVAL));
+ }
+ (*times)[i] = t;
+
+ /* check on monotonicity */
+ if (i && (*times)[i-1] > (*times)[i]) {
+ av_log(log_ctx, AV_LOG_ERROR,
+ "Specified time %f is greater than the following time %f\n",
+ (float)((*times)[i])/1000000, (float)((*times)[i-1])/1000000);
+ FAIL(AVERROR(EINVAL));
+ }
+ }
+
+end:
+ av_free(times_str1);
+ return ret;
+}
+
static int open_null_ctx(AVIOContext **ctx)
{
int buf_size = 32768;
@@ -182,16 +315,59 @@ static int seg_write_header(AVFormatContext *s)
AVFormatContext *oc = NULL;
int ret, i;
- seg->number = 0;
- seg->offset_time = 0;
- seg->recording_time = seg->time * 1000000;
+ seg->segment_count = 0;
if (!seg->write_header_trailer)
seg->individual_header_trailer = 0;
- if (seg->list && seg->list_type != LIST_HLS)
- if ((ret = avio_open2(&seg->pb, seg->list, AVIO_FLAG_WRITE,
- &s->interrupt_callback, NULL)) < 0)
+ if (seg->time_str && seg->times_str) {
+ av_log(s, AV_LOG_ERROR,
+ "segment_time and segment_times options are mutually exclusive, select just one of them\n");
+ return AVERROR(EINVAL);
+ }
+
+ if ((seg->list_flags & SEGMENT_LIST_FLAG_LIVE) && seg->times_str) {
+ av_log(s, AV_LOG_ERROR,
+ "segment_flags +live and segment_times options are mutually exclusive:"
+ "specify -segment_time if you want a live-friendly list\n");
+ return AVERROR(EINVAL);
+ }
+
+ if (seg->times_str) {
+ if ((ret = parse_times(s, &seg->times, &seg->nb_times, seg->times_str)) < 0)
+ return ret;
+ } else {
+ /* set default value if not specified */
+ if (!seg->time_str)
+ seg->time_str = av_strdup("2");
+ if ((ret = av_parse_time(&seg->time, seg->time_str, 1)) < 0) {
+ av_log(s, AV_LOG_ERROR,
+ "Invalid time duration specification '%s' for segment_time option\n",
+ seg->time_str);
+ return ret;
+ }
+ }
+
+ if (seg->time_delta_str) {
+ if ((ret = av_parse_time(&seg->time_delta, seg->time_delta_str, 1)) < 0) {
+ av_log(s, AV_LOG_ERROR,
+ "Invalid time duration specification '%s' for delta option\n",
+ seg->time_delta_str);
+ return ret;
+ }
+ }
+
+ if (seg->list) {
+ if (seg->list_type == LIST_TYPE_UNDEFINED) {
+ if (av_match_ext(seg->list, "csv" )) seg->list_type = LIST_TYPE_CSV;
+ else if (av_match_ext(seg->list, "ext" )) seg->list_type = LIST_TYPE_EXT;
+ else if (av_match_ext(seg->list, "m3u8")) seg->list_type = LIST_TYPE_M3U8;
+ else seg->list_type = LIST_TYPE_FLAT;
+ }
+ if ((ret = segment_list_open(s)) < 0)
goto fail;
+ }
+ if (seg->list_type == LIST_TYPE_EXT)
+ av_log(s, AV_LOG_WARNING, "'ext' list type option is deprecated in favor of 'csv'\n");
for (i = 0; i < s->nb_streams; i++)
seg->has_video +=
@@ -220,10 +396,11 @@ static int seg_write_header(AVFormatContext *s)
oc = seg->avf;
if (av_get_frame_filename(oc->filename, sizeof(oc->filename),
- s->filename, seg->number++) < 0) {
+ s->filename, seg->segment_idx++) < 0) {
ret = AVERROR(EINVAL);
goto fail;
}
+ seg->segment_count++;
if (seg->write_header_trailer) {
if ((ret = avio_open2(&oc->pb, oc->filename, AVIO_FLAG_WRITE,
@@ -239,6 +416,9 @@ static int seg_write_header(AVFormatContext *s)
goto fail;
}
+ if (oc->avoid_negative_ts > 0 && s->avoid_negative_ts < 0)
+ s->avoid_negative_ts = 1;
+
if (!seg->write_header_trailer) {
close_null_ctx(oc->pb);
if ((ret = avio_open2(&oc->pb, oc->filename, AVIO_FLAG_WRITE,
@@ -246,20 +426,10 @@ static int seg_write_header(AVFormatContext *s)
goto fail;
}
- if (seg->list) {
- if (seg->list_type == LIST_HLS) {
- if ((ret = segment_hls_window(s, 0)) < 0)
- goto fail;
- } else {
- avio_printf(seg->pb, "%s\n", oc->filename);
- avio_flush(seg->pb);
- }
- }
-
fail:
if (ret) {
if (seg->list)
- avio_close(seg->pb);
+ segment_list_close(s);
if (seg->avf)
avformat_free_context(seg->avf);
}
@@ -271,18 +441,26 @@ static int seg_write_packet(AVFormatContext *s, AVPacket *pkt)
SegmentContext *seg = s->priv_data;
AVFormatContext *oc = seg->avf;
AVStream *st = s->streams[pkt->stream_index];
- int64_t end_pts = seg->recording_time * seg->number;
+ int64_t end_pts;
int ret;
- if ((seg->has_video && st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
+ if (seg->times) {
+ end_pts = seg->segment_count <= seg->nb_times ?
+ seg->times[seg->segment_count-1] : INT64_MAX;
+ } else {
+ end_pts = seg->time * seg->segment_count;
+ }
+
+ /* if the segment has video, start a new segment *only* with a key video frame */
+ if ((st->codec->codec_type == AVMEDIA_TYPE_VIDEO || !seg->has_video) &&
av_compare_ts(pkt->pts, st->time_base,
- end_pts, AV_TIME_BASE_Q) >= 0 &&
+ end_pts-seg->time_delta, AV_TIME_BASE_Q) >= 0 &&
pkt->flags & AV_PKT_FLAG_KEY) {
- av_log(s, AV_LOG_DEBUG, "Next segment starts at %d %"PRId64"\n",
- pkt->stream_index, pkt->pts);
+ av_log(s, AV_LOG_DEBUG, "Next segment starts with packet stream:%d pts:%"PRId64" pts_time:%f\n",
+ pkt->stream_index, pkt->pts, pkt->pts * av_q2d(st->time_base));
- ret = segment_end(oc, seg->individual_header_trailer);
+ ret = segment_end(s, seg->individual_header_trailer);
if (!ret)
ret = segment_start(s, seg->individual_header_trailer);
@@ -292,21 +470,10 @@ static int seg_write_packet(AVFormatContext *s, AVPacket *pkt)
oc = seg->avf;
- if (seg->list) {
- if (seg->list_type == LIST_HLS) {
- if ((ret = segment_hls_window(s, 0)) < 0)
- goto fail;
- } else {
- avio_printf(seg->pb, "%s\n", oc->filename);
- avio_flush(seg->pb);
- if (seg->size && !(seg->number % seg->size)) {
- avio_closep(&seg->pb);
- if ((ret = avio_open2(&seg->pb, seg->list, AVIO_FLAG_WRITE,
- &s->interrupt_callback, NULL)) < 0)
- goto fail;
- }
- }
- }
+ seg->start_time = (double)pkt->pts * av_q2d(st->time_base);
+ } else if (pkt->pts != AV_NOPTS_VALUE) {
+ seg->end_time = FFMAX(seg->end_time,
+ (double)(pkt->pts + pkt->duration) * av_q2d(st->time_base));
}
ret = ff_write_chained(oc, pkt->stream_index, pkt, s);
@@ -314,7 +481,7 @@ static int seg_write_packet(AVFormatContext *s, AVPacket *pkt)
fail:
if (ret < 0) {
if (seg->list)
- avio_close(seg->pb);
+ avio_close(seg->list_pb);
avformat_free_context(oc);
}
@@ -327,25 +494,21 @@ static int seg_write_trailer(struct AVFormatContext *s)
AVFormatContext *oc = seg->avf;
int ret;
if (!seg->write_header_trailer) {
- if ((ret = segment_end(oc, 0)) < 0)
+ if ((ret = segment_end(s, 0)) < 0)
goto fail;
open_null_ctx(&oc->pb);
ret = av_write_trailer(oc);
close_null_ctx(oc->pb);
} else {
- ret = segment_end(oc, 1);
+ ret = segment_end(s, 1);
}
+fail:
+ if (seg->list)
+ segment_list_close(s);
- if (ret < 0)
- goto fail;
-
- if (seg->list && seg->list_type == LIST_HLS) {
- if ((ret = segment_hls_window(s, 1) < 0))
- goto fail;
- }
+ av_opt_free(seg);
+ av_freep(&seg->times);
-fail:
- avio_close(seg->pb);
avformat_free_context(oc);
return ret;
}
@@ -353,14 +516,24 @@ fail:
#define OFFSET(x) offsetof(SegmentContext, x)
#define E AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
- { "segment_format", "container format used for the segments", OFFSET(format), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
- { "segment_time", "segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E },
- { "segment_list", "output the segment list", OFFSET(list), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
- { "segment_list_size", "maximum number of playlist entries", OFFSET(size), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E },
- { "segment_list_type", "segment list format", OFFSET(list_type), AV_OPT_TYPE_INT, {.i64 = LIST_FLAT}, 0, 2, E, "list_type" },
- { "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_format", "set container format used for the segments", OFFSET(format), 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"},
+ { "cache", "allow list caching", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_LIST_FLAG_CACHE }, INT_MIN, INT_MAX, E, "list_flags"},
+ { "live", "enable live-friendly list generation (useful for HLS)", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_LIST_FLAG_LIVE }, INT_MIN, INT_MAX, E, "list_flags"},
+
+ { "segment_list_size", "set the maximum number of playlist entries", OFFSET(list_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E },
+ { "segment_list_type", "set the segment list type", OFFSET(list_type), AV_OPT_TYPE_INT, {.i64 = LIST_TYPE_UNDEFINED}, -1, LIST_TYPE_NB-1, E, "list_type" },
+ { "flat", "flat format", 0, AV_OPT_TYPE_CONST, {.i64=LIST_TYPE_FLAT }, INT_MIN, INT_MAX, 0, "list_type" },
+ { "csv", "csv format", 0, AV_OPT_TYPE_CONST, {.i64=LIST_TYPE_CSV }, INT_MIN, INT_MAX, 0, "list_type" },
+ { "ext", "extended format", 0, AV_OPT_TYPE_CONST, {.i64=LIST_TYPE_EXT }, INT_MIN, INT_MAX, 0, "list_type" },
+ { "m3u8", "M3U8 format", 0, AV_OPT_TYPE_CONST, {.i64=LIST_TYPE_M3U8 }, INT_MIN, INT_MAX, 0, "list_type" },
+ { "hls", "Apple HTTP Live Streaming compatible", 0, AV_OPT_TYPE_CONST, {.i64=LIST_TYPE_M3U8 }, INT_MIN, INT_MAX, 0, "list_type" },
+ { "segment_time", "set segment duration", OFFSET(time_str),AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
+ { "segment_time_delta","set approximation value used for the segment times", OFFSET(time_delta_str), AV_OPT_TYPE_STRING, {.str = "0"}, 0, 0, E },
+ { "segment_times", "set segment split time points", OFFSET(times_str),AV_OPT_TYPE_STRING,{.str = NULL}, 0, 0, E },
+ { "segment_wrap", "set number after which the index wraps", OFFSET(segment_idx_wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, 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 },
@@ -373,7 +546,6 @@ static const AVClass seg_class = {
.version = LIBAVUTIL_VERSION_INT,
};
-
AVOutputFormat ff_segment_muxer = {
.name = "segment",
.long_name = NULL_IF_CONFIG_SMALL("segment"),
@@ -384,3 +556,21 @@ AVOutputFormat ff_segment_muxer = {
.write_trailer = seg_write_trailer,
.priv_class = &seg_class,
};
+
+static const AVClass sseg_class = {
+ .class_name = "stream_segment muxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVOutputFormat ff_stream_segment_muxer = {
+ .name = "stream_segment,ssegment",
+ .long_name = NULL_IF_CONFIG_SMALL("streaming segment muxer"),
+ .priv_data_size = sizeof(SegmentContext),
+ .flags = AVFMT_NOFILE,
+ .write_header = seg_write_header,
+ .write_packet = seg_write_packet,
+ .write_trailer = seg_write_trailer,
+ .priv_class = &sseg_class,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-10 02:12:19 +0000