*/
#include <float.h>
+#include <stdint.h>
#include "libavutil/mathematics.h"
#include "libavutil/parseutils.h"
typedef struct ListEntry {
char name[1024];
- int duration;
+ int64_t duration; // segment duration in AV_TIME_BASE units
struct ListEntry *next;
} ListEntry;
typedef struct HLSContext {
const AVClass *class; // Class for private options.
- int number;
+ unsigned number;
+ int64_t sequence;
+ int64_t start_sequence;
AVOutputFormat *oformat;
AVFormatContext *avf;
float time; // Set by a private option.
int size; // Set by a private option.
int wrap; // Set by a private option.
+ int version; // Set by a private option.
+ int allowcache;
int64_t recording_time;
int has_video;
+ // The following timestamps are in AV_TIME_BASE units.
int64_t start_pts;
int64_t end_pts;
+ int64_t duration; // last segment duration computed so far.
+ int nb_entries;
ListEntry *list;
ListEntry *end_list;
char *basename;
- AVIOContext *pb;
+ char *baseurl;
} HLSContext;
static int hls_mux_init(AVFormatContext *s)
return AVERROR(ENOMEM);
avcodec_copy_context(st->codec, s->streams[i]->codec);
st->sample_aspect_ratio = s->streams[i]->sample_aspect_ratio;
+ st->time_base = s->streams[i]->time_base;
}
return 0;
}
-static int append_entry(HLSContext *hls, uint64_t duration)
+static int append_entry(HLSContext *hls, int64_t duration)
{
ListEntry *en = av_malloc(sizeof(*en));
if (!en)
return AVERROR(ENOMEM);
- av_get_frame_filename(en->name, sizeof(en->name), hls->basename,
- hls->number -1);
+ av_strlcpy(en->name, av_basename(hls->avf->filename), sizeof(en->name));
en->duration = duration;
en->next = NULL;
hls->end_list = en;
- if (hls->number >= hls->size) {
+ if (hls->nb_entries >= hls->size) {
en = hls->list;
hls->list = en->next;
av_free(en);
- }
+ } else
+ hls->nb_entries++;
+
+ hls->sequence++;
return 0;
}
{
HLSContext *hls = s->priv_data;
ListEntry *en;
- int target_duration = 0;
+ int64_t target_duration = 0;
int ret = 0;
+ AVIOContext *out = NULL;
+ char temp_filename[1024];
+ int64_t sequence = FFMAX(hls->start_sequence, hls->sequence - hls->size);
- if ((ret = avio_open2(&hls->pb, s->filename, AVIO_FLAG_WRITE,
+ snprintf(temp_filename, sizeof(temp_filename), "%s.tmp", s->filename);
+ if ((ret = avio_open2(&out, temp_filename, AVIO_FLAG_WRITE,
&s->interrupt_callback, NULL)) < 0)
goto fail;
target_duration = en->duration;
}
- avio_printf(hls->pb, "#EXTM3U\n");
- avio_printf(hls->pb, "#EXT-X-VERSION:3\n");
- avio_printf(hls->pb, "#EXT-X-TARGETDURATION:%d\n", target_duration);
- avio_printf(hls->pb, "#EXT-X-MEDIA-SEQUENCE:%d\n",
- FFMAX(0, hls->number - hls->size));
+ avio_printf(out, "#EXTM3U\n");
+ avio_printf(out, "#EXT-X-VERSION:%d\n", hls->version);
+ if (hls->allowcache == 0 || hls->allowcache == 1) {
+ avio_printf(out, "#EXT-X-ALLOW-CACHE:%s\n", hls->allowcache == 0 ? "NO" : "YES");
+ }
+ avio_printf(out, "#EXT-X-TARGETDURATION:%"PRId64"\n",
+ av_rescale_rnd(target_duration, 1, AV_TIME_BASE,
+ AV_ROUND_UP));
+ avio_printf(out, "#EXT-X-MEDIA-SEQUENCE:%"PRId64"\n", sequence);
+
+ av_log(s, AV_LOG_VERBOSE, "EXT-X-MEDIA-SEQUENCE:%"PRId64"\n",
+ sequence);
for (en = hls->list; en; en = en->next) {
- avio_printf(hls->pb, "#EXTINF:%d,\n", en->duration);
- avio_printf(hls->pb, "%s\n", en->name);
+ if (hls->version > 2)
+ avio_printf(out, "#EXTINF:%f\n",
+ (double)en->duration / AV_TIME_BASE);
+ else
+ avio_printf(out, "#EXTINF:%"PRId64",\n",
+ av_rescale(en->duration, 1, AV_TIME_BASE));
+ if (hls->baseurl)
+ avio_printf(out, "%s", hls->baseurl);
+ avio_printf(out, "%s\n", en->name);
}
if (last)
- avio_printf(hls->pb, "#EXT-X-ENDLIST\n");
+ avio_printf(out, "#EXT-X-ENDLIST\n");
fail:
- avio_closep(&hls->pb);
+ avio_closep(&out);
+ if (ret >= 0)
+ ff_rename(temp_filename, s->filename);
return ret;
}
AVFormatContext *oc = c->avf;
int err = 0;
- if (c->wrap)
- c->number %= c->wrap;
-
if (av_get_frame_filename(oc->filename, sizeof(oc->filename),
- c->basename, c->number++) < 0)
+ c->basename, c->wrap ? c->sequence % c->wrap : c->sequence) < 0)
return AVERROR(EINVAL);
+ c->number++;
if ((err = avio_open2(&oc->pb, oc->filename, AVIO_FLAG_WRITE,
&s->interrupt_callback, NULL)) < 0)
int ret, i;
char *p;
const char *pattern = "%d.ts";
- int basename_size = strlen(s->filename) + strlen(pattern);
-
- hls->number = 0;
+ int basename_size = strlen(s->filename) + strlen(pattern) + 1;
- hls->recording_time = hls->time * 1000000;
+ hls->sequence = hls->start_sequence;
+ hls->recording_time = hls->time * AV_TIME_BASE;
hls->start_pts = AV_NOPTS_VALUE;
for (i = 0; i < s->nb_streams; i++)
if (p)
*p = '\0';
- av_strlcat(hls->basename, "%d.ts", basename_size);
+ av_strlcat(hls->basename, pattern, basename_size);
if ((ret = hls_mux_init(s)) < 0)
goto fail;
AVFormatContext *oc = hls->avf;
AVStream *st = s->streams[pkt->stream_index];
int64_t end_pts = hls->recording_time * hls->number;
- int ret;
+ int64_t pts = av_rescale_q(pkt->pts, st->time_base, AV_TIME_BASE_Q);
+ int ret, can_split = 1;
if (hls->start_pts == AV_NOPTS_VALUE) {
- hls->start_pts = pkt->pts;
- hls->end_pts = pkt->pts;
+ hls->start_pts = pts;
+ hls->end_pts = pts;
}
- end_pts += hls->start_pts;
- if ((hls->has_video && st->codec->codec_type == AVMEDIA_TYPE_VIDEO) &&
- av_compare_ts(pkt->pts, st->time_base, end_pts, AV_TIME_BASE_Q) >= 0 &&
- pkt->flags & AV_PKT_FLAG_KEY) {
+ if (hls->has_video) {
+ can_split = st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
+ pkt->flags & AV_PKT_FLAG_KEY;
+ }
+ if (pkt->pts == AV_NOPTS_VALUE)
+ can_split = 0;
+ else
+ hls->duration = pts - hls->end_pts;
+
+ if (can_split && pts - hls->start_pts >= end_pts) {
+ ret = append_entry(hls, hls->duration);
+ if (ret)
+ return ret;
- append_entry(hls, av_rescale(pkt->pts - hls->end_pts,
- st->time_base.num,
- st->time_base.den));
- hls->end_pts = pkt->pts;
+ hls->end_pts = pts;
+ hls->duration = 0;
av_write_frame(oc, NULL); /* Flush any buffered data */
avio_close(oc->pb);
avio_closep(&oc->pb);
avformat_free_context(oc);
av_free(hls->basename);
+ append_entry(hls, hls->duration);
hls_window(s, 1);
free_entries(hls);
- avio_close(hls->pb);
return 0;
}
#define OFFSET(x) offsetof(HLSContext, x)
#define E AV_OPT_FLAG_ENCODING_PARAM
static const AVOption options[] = {
- { "start_number", "first number in the sequence", OFFSET(number), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
+ {"start_number", "first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
{"hls_time", "segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
{"hls_list_size", "maximum number of playlist entries", OFFSET(size), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
{"hls_wrap", "number after which the index wraps", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
+ {"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},
+ {"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
+ {"hls_version", "protocol version", OFFSET(version), AV_OPT_TYPE_INT, {.i64 = 3}, 2, 3, E},
{ NULL },
};
.long_name = NULL_IF_CONFIG_SMALL("Apple HTTP Live Streaming"),
.extensions = "m3u8",
.priv_data_size = sizeof(HLSContext),
- .audio_codec = AV_CODEC_ID_MP2,
- .video_codec = AV_CODEC_ID_MPEG2VIDEO,
+ .audio_codec = AV_CODEC_ID_AAC,
+ .video_codec = AV_CODEC_ID_H264,
.flags = AVFMT_NOFILE | AVFMT_ALLOW_FLUSH,
.write_header = hls_write_header,
.write_packet = hls_write_packet,
projects / ffmpeg / blobdiff