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Diffstat (limited to 'libavformat/hlsenc.c')
-rw-r--r--libavformat/hlsenc.c106
1 files changed, 60 insertions, 46 deletions
diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
index aa38d05462..11f1e5be42 100644
--- a/libavformat/hlsenc.c
+++ b/libavformat/hlsenc.c
@@ -2,20 +2,20 @@
* Apple HTTP Live Streaming segmenter
* Copyright (c) 2012, Luca Barbato
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -31,11 +31,12 @@
#include "avformat.h"
#include "internal.h"
-typedef struct ListEntry {
- char name[1024];
- int duration;
- struct ListEntry *next;
-} ListEntry;
+typedef struct HLSSegment {
+ char filename[1024];
+ double duration; /* in seconds */
+
+ struct HLSSegment *next;
+} HLSSegment;
typedef struct HLSContext {
const AVClass *class; // Class for private options.
@@ -43,20 +44,26 @@ typedef struct HLSContext {
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 max_nb_segments; // Set by a private option.
int wrap; // Set by a private option.
+
int64_t recording_time;
int has_video;
int64_t start_pts;
int64_t end_pts;
- int64_t duration; // last segment duration computed so far, in seconds
+ double duration; // last segment duration computed so far, in seconds
int nb_entries;
- ListEntry *list;
- ListEntry *end_list;
+
+ HLSSegment *segments;
+ HLSSegment *last_segment;
+
char *basename;
char *baseurl;
+
AVIOContext *pb;
} HLSContext;
@@ -72,6 +79,7 @@ static int hls_mux_init(AVFormatContext *s)
oc->oformat = hls->oformat;
oc->interrupt_callback = s->interrupt_callback;
+ av_dict_copy(&oc->metadata, s->metadata, 0);
for (i = 0; i < s->nb_streams; i++) {
AVStream *st;
@@ -84,28 +92,29 @@ static int hls_mux_init(AVFormatContext *s)
return 0;
}
-static int append_entry(HLSContext *hls, uint64_t duration)
+/* Create a new segment and append it to the segment list */
+static int hls_append_segment(HLSContext *hls, double duration)
{
- ListEntry *en = av_malloc(sizeof(*en));
+ HLSSegment *en = av_malloc(sizeof(*en));
if (!en)
return AVERROR(ENOMEM);
- av_strlcpy(en->name, av_basename(hls->avf->filename), sizeof(en->name));
+ av_strlcpy(en->filename, av_basename(hls->avf->filename), sizeof(en->filename));
en->duration = duration;
en->next = NULL;
- if (!hls->list)
- hls->list = en;
+ if (!hls->segments)
+ hls->segments = en;
else
- hls->end_list->next = en;
+ hls->last_segment->next = en;
- hls->end_list = en;
+ hls->last_segment = en;
- if (hls->nb_entries >= hls->size) {
- en = hls->list;
- hls->list = en->next;
+ if (hls->max_nb_segments && hls->nb_entries >= hls->max_nb_segments) {
+ en = hls->segments;
+ hls->segments = en->next;
av_free(en);
} else
hls->nb_entries++;
@@ -115,9 +124,9 @@ static int append_entry(HLSContext *hls, uint64_t duration)
return 0;
}
-static void free_entries(HLSContext *hls)
+static void hls_free_segments(HLSContext *hls)
{
- ListEntry *p = hls->list, *en;
+ HLSSegment *p = hls->segments, *en;
while(p) {
en = p;
@@ -129,18 +138,18 @@ static void free_entries(HLSContext *hls)
static int hls_window(AVFormatContext *s, int last)
{
HLSContext *hls = s->priv_data;
- ListEntry *en;
+ HLSSegment *en;
int target_duration = 0;
int ret = 0;
- int64_t sequence = FFMAX(hls->start_sequence, hls->sequence - hls->size);
+ int64_t sequence = FFMAX(hls->start_sequence, hls->sequence - hls->nb_entries);
if ((ret = avio_open2(&hls->pb, s->filename, AVIO_FLAG_WRITE,
&s->interrupt_callback, NULL)) < 0)
goto fail;
- for (en = hls->list; en; en = en->next) {
+ for (en = hls->segments; en; en = en->next) {
if (target_duration < en->duration)
- target_duration = en->duration;
+ target_duration = ceil(en->duration);
}
avio_printf(hls->pb, "#EXTM3U\n");
@@ -151,11 +160,11 @@ static int hls_window(AVFormatContext *s, int last)
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);
+ for (en = hls->segments; en; en = en->next) {
+ avio_printf(hls->pb, "#EXTINF:%f,\n", en->duration);
if (hls->baseurl)
avio_printf(hls->pb, "%s", hls->baseurl);
- avio_printf(hls->pb, "%s\n", en->name);
+ avio_printf(hls->pb, "%s\n", en->filename);
}
if (last)
@@ -173,8 +182,10 @@ static int hls_start(AVFormatContext *s)
int err = 0;
if (av_get_frame_filename(oc->filename, sizeof(oc->filename),
- c->basename, c->wrap ? c->sequence % c->wrap : c->sequence) < 0)
+ c->basename, c->wrap ? c->sequence % c->wrap : c->sequence) < 0) {
+ av_log(oc, AV_LOG_ERROR, "Invalid segment filename template '%s'\n", c->basename);
return AVERROR(EINVAL);
+ }
c->number++;
if ((err = avio_open2(&oc->pb, oc->filename, AVIO_FLAG_WRITE,
@@ -238,7 +249,7 @@ static int hls_write_header(AVFormatContext *s)
goto fail;
if ((ret = avformat_write_header(hls->avf, NULL)) < 0)
- return ret;
+ goto fail;
fail:
@@ -256,6 +267,7 @@ static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
AVFormatContext *oc = hls->avf;
AVStream *st = s->streams[pkt->stream_index];
int64_t end_pts = hls->recording_time * hls->number;
+ int is_ref_pkt = 1;
int ret, can_split = 1;
if (hls->start_pts == AV_NOPTS_VALUE) {
@@ -266,16 +278,18 @@ static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
if (hls->has_video) {
can_split = st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
pkt->flags & AV_PKT_FLAG_KEY;
+ is_ref_pkt = st->codec->codec_type == AVMEDIA_TYPE_VIDEO;
}
if (pkt->pts == AV_NOPTS_VALUE)
- can_split = 0;
- else
- hls->duration = av_rescale(pkt->pts - hls->end_pts,
- st->time_base.num, st->time_base.den);
+ is_ref_pkt = can_split = 0;
+
+ if (is_ref_pkt)
+ hls->duration = (double)(pkt->pts - hls->end_pts)
+ * st->time_base.num / st->time_base.den;
if (can_split && av_compare_ts(pkt->pts - hls->start_pts, st->time_base,
end_pts, AV_TIME_BASE_Q) >= 0) {
- ret = append_entry(hls, hls->duration);
+ ret = hls_append_segment(hls, hls->duration);
if (ret)
return ret;
@@ -296,7 +310,7 @@ static int hls_write_packet(AVFormatContext *s, AVPacket *pkt)
return ret;
}
- ret = ff_write_chained(oc, pkt->stream_index, pkt, s);
+ ret = ff_write_chained(oc, pkt->stream_index, pkt, s, 0);
return ret;
}
@@ -310,10 +324,10 @@ static int hls_write_trailer(struct AVFormatContext *s)
avio_closep(&oc->pb);
avformat_free_context(oc);
av_free(hls->basename);
- append_entry(hls, hls->duration);
+ hls_append_segment(hls, hls->duration);
hls_window(s, 1);
- free_entries(hls);
+ hls_free_segments(hls);
avio_close(hls->pb);
return 0;
}
@@ -321,10 +335,10 @@ static int hls_write_trailer(struct AVFormatContext *s)
#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(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},
+ {"start_number", "set first number in the sequence", OFFSET(start_sequence),AV_OPT_TYPE_INT64, {.i64 = 0}, 0, INT64_MAX, E},
+ {"hls_time", "set segment length in seconds", OFFSET(time), AV_OPT_TYPE_FLOAT, {.dbl = 2}, 0, FLT_MAX, E},
+ {"hls_list_size", "set maximum number of playlist entries", OFFSET(max_nb_segments), AV_OPT_TYPE_INT, {.i64 = 5}, 0, INT_MAX, E},
+ {"hls_wrap", "set number after which the index wraps", OFFSET(wrap), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, E},
{"hls_base_url", "url to prepend to each playlist entry", OFFSET(baseurl), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
{ NULL },
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-09 21:59:51 +0000