typedef struct {
const AVClass *class; /**< Class for private options. */
int number;
+ AVOutputFormat *oformat;
AVFormatContext *avf;
char *format; /**< Set by a private option. */
char *list; /**< Set by a private option. */
+ char *entry_prefix; /**< 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. */
+ 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;
} SegmentContext;
-static int segment_start(AVFormatContext *s)
+enum {
+ LIST_FLAT,
+ LIST_HLS
+};
+
+static int segment_mux_init(AVFormatContext *s)
+{
+ SegmentContext *seg = s->priv_data;
+ AVFormatContext *oc;
+ int i;
+
+ seg->avf = oc = avformat_alloc_context();
+ if (!oc)
+ return AVERROR(ENOMEM);
+
+ oc->oformat = seg->oformat;
+ oc->interrupt_callback = s->interrupt_callback;
+
+ for (i = 0; i < s->nb_streams; i++) {
+ AVStream *st;
+ if (!(st = avformat_new_stream(oc, NULL)))
+ return AVERROR(ENOMEM);
+ avcodec_copy_context(st->codec, s->streams[i]->codec);
+ st->sample_aspect_ratio = s->streams[i]->sample_aspect_ratio;
+ }
+
+ 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));
+
+ av_log(s, AV_LOG_VERBOSE, "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);
+ if (seg->entry_prefix) {
+ avio_printf(seg->pb, "%s", seg->entry_prefix);
+ }
+ 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;
AVFormatContext *oc = c->avf;
int err = 0;
+ if (write_header) {
+ avformat_free_context(oc);
+ c->avf = NULL;
+ if ((err = segment_mux_init(s)) < 0)
+ return err;
+ oc = c->avf;
+ }
+
if (c->wrap)
c->number %= c->wrap;
&s->interrupt_callback, NULL)) < 0)
return err;
- if (!oc->priv_data && oc->oformat->priv_data_size > 0) {
- oc->priv_data = av_mallocz(oc->oformat->priv_data_size);
- if (!oc->priv_data) {
- avio_close(oc->pb);
- return AVERROR(ENOMEM);
- }
- if (oc->oformat->priv_class) {
- *(const AVClass**)oc->priv_data = oc->oformat->priv_class;
- av_opt_set_defaults(oc->priv_data);
- }
- }
+ if (oc->oformat->priv_class && oc->priv_data)
+ av_opt_set(oc->priv_data, "resend_headers", "1", 0); /* mpegts specific */
- if ((err = oc->oformat->write_header(oc)) < 0) {
- goto fail;
+ if (write_header) {
+ if ((err = avformat_write_header(oc, NULL)) < 0)
+ return err;
}
return 0;
-
-fail:
- avio_close(oc->pb);
- av_freep(&oc->priv_data);
-
- return err;
}
-static int segment_end(AVFormatContext *oc)
+static int segment_end(AVFormatContext *oc, int write_trailer)
{
int ret = 0;
- if (oc->oformat->write_trailer)
- ret = oc->oformat->write_trailer(oc);
-
+ av_write_frame(oc, NULL); /* Flush any buffered data (fragmented mp4) */
+ if (write_trailer)
+ av_write_trailer(oc);
avio_close(oc->pb);
- if (oc->oformat->priv_class)
- av_opt_free(oc->priv_data);
- av_freep(&oc->priv_data);
return ret;
}
+static int open_null_ctx(AVIOContext **ctx)
+{
+ int buf_size = 32768;
+ uint8_t *buf = av_malloc(buf_size);
+ if (!buf)
+ return AVERROR(ENOMEM);
+ *ctx = avio_alloc_context(buf, buf_size, AVIO_FLAG_WRITE, NULL, NULL, NULL, NULL);
+ if (!*ctx) {
+ av_free(buf);
+ return AVERROR(ENOMEM);
+ }
+ return 0;
+}
+
+static void close_null_ctx(AVIOContext *pb)
+{
+ av_free(pb->buffer);
+ av_free(pb);
+}
+
static int seg_write_header(AVFormatContext *s)
{
SegmentContext *seg = s->priv_data;
- AVFormatContext *oc;
+ AVFormatContext *oc = NULL;
int ret, i;
seg->number = 0;
seg->offset_time = 0;
seg->recording_time = seg->time * 1000000;
+ if (!seg->write_header_trailer)
+ seg->individual_header_trailer = 0;
- oc = avformat_alloc_context();
-
- if (!oc)
- return AVERROR(ENOMEM);
-
- if (seg->list)
+ if (seg->list && seg->list_type != LIST_HLS)
if ((ret = avio_open2(&seg->pb, seg->list, AVIO_FLAG_WRITE,
&s->interrupt_callback, NULL)) < 0)
goto fail;
"More than a single video stream present, "
"expect issues decoding it.\n");
- oc->oformat = av_guess_format(seg->format, s->filename, NULL);
+ seg->oformat = av_guess_format(seg->format, s->filename, NULL);
- if (!oc->oformat) {
+ if (!seg->oformat) {
ret = AVERROR_MUXER_NOT_FOUND;
goto fail;
}
- if (oc->oformat->flags & AVFMT_NOFILE) {
+ if (seg->oformat->flags & AVFMT_NOFILE) {
av_log(s, AV_LOG_ERROR, "format %s not supported.\n",
- oc->oformat->name);
+ seg->oformat->name);
ret = AVERROR(EINVAL);
goto fail;
}
- oc->interrupt_callback = s->interrupt_callback;
- seg->avf = oc;
-
- for (i = 0; i < s->nb_streams; i++) {
- AVStream *st;
- if (!(st = avformat_new_stream(oc, NULL))) {
- ret = AVERROR(ENOMEM);
- goto fail;
- }
- avcodec_copy_context(st->codec, s->streams[i]->codec);
- st->sample_aspect_ratio = s->streams[i]->sample_aspect_ratio;
- }
+ if ((ret = segment_mux_init(s)) < 0)
+ goto fail;
+ oc = seg->avf;
if (av_get_frame_filename(oc->filename, sizeof(oc->filename),
s->filename, seg->number++) < 0) {
goto fail;
}
- if ((ret = avio_open2(&oc->pb, oc->filename, AVIO_FLAG_WRITE,
- &s->interrupt_callback, NULL)) < 0)
- goto fail;
+ if (seg->write_header_trailer) {
+ if ((ret = avio_open2(&oc->pb, oc->filename, AVIO_FLAG_WRITE,
+ &s->interrupt_callback, NULL)) < 0)
+ goto fail;
+ } else {
+ if ((ret = open_null_ctx(&oc->pb)) < 0)
+ goto fail;
+ }
if ((ret = avformat_write_header(oc, NULL)) < 0) {
avio_close(oc->pb);
goto fail;
}
+ if (!seg->write_header_trailer) {
+ close_null_ctx(oc->pb);
+ if ((ret = avio_open2(&oc->pb, oc->filename, AVIO_FLAG_WRITE,
+ &s->interrupt_callback, NULL)) < 0)
+ goto fail;
+ }
+
if (seg->list) {
- avio_printf(seg->pb, "%s\n", oc->filename);
- avio_flush(seg->pb);
+ 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);
- avformat_free_context(oc);
+ if (seg->avf)
+ avformat_free_context(seg->avf);
}
return ret;
}
AVFormatContext *oc = seg->avf;
AVStream *st = s->streams[pkt->stream_index];
int64_t end_pts = seg->recording_time * seg->number;
- int ret;
+ int ret, can_split = 1;
- if ((seg->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 (seg->has_video) {
+ can_split = st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
+ pkt->flags & AV_PKT_FLAG_KEY;
+ }
+ if (can_split && av_compare_ts(pkt->pts, st->time_base, end_pts,
+ AV_TIME_BASE_Q) >= 0) {
av_log(s, AV_LOG_DEBUG, "Next segment starts at %d %"PRId64"\n",
pkt->stream_index, pkt->pts);
- ret = segment_end(oc);
+ ret = segment_end(oc, seg->individual_header_trailer);
if (!ret)
- ret = segment_start(s);
+ ret = segment_start(s, seg->individual_header_trailer);
if (ret)
goto fail;
+ oc = seg->avf;
+
if (seg->list) {
- avio_printf(seg->pb, "%s\n", oc->filename);
- avio_flush(seg->pb);
- if (seg->size && !(seg->number % seg->size)) {
- avio_close(seg->pb);
- if ((ret = avio_open2(&seg->pb, seg->list, AVIO_FLAG_WRITE,
- &s->interrupt_callback, NULL)) < 0)
+ 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;
+ }
}
}
}
{
SegmentContext *seg = s->priv_data;
AVFormatContext *oc = seg->avf;
- int ret = segment_end(oc);
- if (seg->list)
- avio_close(seg->pb);
+ int ret;
+ if (!seg->write_header_trailer) {
+ if ((ret = segment_end(oc, 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);
+ }
+
+ if (ret < 0)
+ goto fail;
+
+ if (seg->list && seg->list_type == LIST_HLS) {
+ if ((ret = segment_hls_window(s, 1) < 0))
+ goto fail;
+ }
+
+fail:
+ avio_close(seg->pb);
avformat_free_context(oc);
return ret;
}
{ "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_list_entry_prefix", "base url prefix for segments", OFFSET(entry_prefix), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, 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 },
};
.name = "segment",
.long_name = NULL_IF_CONFIG_SMALL("segment"),
.priv_data_size = sizeof(SegmentContext),
- .flags = AVFMT_GLOBALHEADER | AVFMT_NOFILE,
+ .flags = AVFMT_NOFILE,
.write_header = seg_write_header,
.write_packet = seg_write_packet,
.write_trailer = seg_write_trailer,
projects / ffmpeg / blobdiff