#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/rational.h"
+#include "libavutil/time.h"
#include "libavutil/time_internal.h"
#include "avc.h"
#include "dash.h"
typedef enum {
- SEGMENT_TYPE_MP4 = 0,
+ SEGMENT_TYPE_AUTO = 0,
+ SEGMENT_TYPE_MP4,
SEGMENT_TYPE_WEBM,
SEGMENT_TYPE_NB
} SegmentType;
int64_t start_pos;
int range_length, index_length;
int64_t time;
- int duration;
+ double prog_date_time;
+ int64_t duration;
int n;
} Segment;
int64_t first_pts, start_pts, max_pts;
int64_t last_dts, last_pts;
int bit_rate;
+ SegmentType segment_type; /* segment type selected for this particular stream */
+ const char *format_name;
+ const char *single_file_name; /* file names selected for this particular stream */
+ const char *init_seg_name;
+ const char *media_seg_name;
char codec_str[100];
int written_len;
int64_t last_duration;
int64_t total_duration;
char availability_start_time[100];
+ time_t start_time_s;
char dirname[1024];
- const char *single_file_name;
+ const char *single_file_name; /* file names as specified in options */
const char *init_seg_name;
const char *media_seg_name;
const char *utc_timing_url;
int64_t timeout;
int index_correction;
char *format_options_str;
- SegmentType segment_type;
- const char *format_name;
+ SegmentType segment_type_option; /* segment type as specified in options */
+ int ignore_io_errors;
+ int lhls;
+ int master_publish_rate;
} DASHContext;
static struct codec_string {
{ AV_CODEC_ID_VP9, "vp9" },
{ AV_CODEC_ID_VORBIS, "vorbis" },
{ AV_CODEC_ID_OPUS, "opus" },
+ { AV_CODEC_ID_FLAC, "flac" },
{ 0, NULL }
};
SegmentType segment_type;
const char *str;
} formats[] = {
+ { SEGMENT_TYPE_AUTO, "auto" },
{ SEGMENT_TYPE_MP4, "mp4" },
{ SEGMENT_TYPE_WEBM, "webm" },
{ 0, NULL }
URLContext *http_url_context = ffio_geturlcontext(*pb);
av_assert0(http_url_context);
err = ff_http_do_new_request(http_url_context, filename);
+ if (err < 0)
+ ff_format_io_close(s, pb);
#endif
}
return err;
DASHContext *c = s->priv_data;
int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
+ if (!*pb)
+ return;
+
if (!http_base_proto || !c->http_persistent) {
ff_format_io_close(s, pb);
#if CONFIG_HTTP_PROTOCOL
return NULL;
}
+static int handle_io_open_error(AVFormatContext *s, int err, char *url) {
+ DASHContext *c = s->priv_data;
+ char errbuf[AV_ERROR_MAX_STRING_SIZE];
+ av_strerror(err, errbuf, sizeof(errbuf));
+ av_log(s, c->ignore_io_errors ? AV_LOG_WARNING : AV_LOG_ERROR,
+ "Unable to open %s for writing: %s\n", url, errbuf);
+ return c->ignore_io_errors ? 0 : err;
+}
+
+static inline SegmentType select_segment_type(SegmentType segment_type, enum AVCodecID codec_id)
+{
+ if (segment_type == SEGMENT_TYPE_AUTO) {
+ if (codec_id == AV_CODEC_ID_OPUS || codec_id == AV_CODEC_ID_VORBIS ||
+ codec_id == AV_CODEC_ID_VP8 || codec_id == AV_CODEC_ID_VP9) {
+ segment_type = SEGMENT_TYPE_WEBM;
+ } else {
+ segment_type = SEGMENT_TYPE_MP4;
+ }
+ }
+
+ return segment_type;
+}
+
+static int init_segment_types(AVFormatContext *s)
+{
+ DASHContext *c = s->priv_data;
+ int has_mp4_streams = 0;
+ for (int i = 0; i < s->nb_streams; ++i) {
+ OutputStream *os = &c->streams[i];
+ SegmentType segment_type = select_segment_type(
+ c->segment_type_option, s->streams[i]->codecpar->codec_id);
+ os->segment_type = segment_type;
+ os->format_name = get_format_str(segment_type);
+ if (!os->format_name) {
+ av_log(s, AV_LOG_ERROR, "Could not select DASH segment type for stream %d\n", i);
+ return AVERROR_MUXER_NOT_FOUND;
+ }
+ has_mp4_streams |= segment_type == SEGMENT_TYPE_MP4;
+ }
+
+ if (c->hls_playlist && !has_mp4_streams) {
+ av_log(s, AV_LOG_WARNING, "No mp4 streams, disabling HLS manifest generation\n");
+ c->hls_playlist = 0;
+ }
+
+ return 0;
+}
+
static int check_file_extension(const char *filename, const char *extension) {
char *dot;
if (!filename || !extension)
VPCC vpcc;
int ret = ff_isom_get_vpcc_features(s, par, frame_rate, &vpcc);
if (ret == 0) {
- av_strlcatf(str, size, "vp09.%02x.%02x.%02x",
+ av_strlcatf(str, size, "vp09.%02d.%02d.%02d",
vpcc.profile, vpcc.level, vpcc.bitdepth);
} else {
// Default to just vp9 in case of error while finding out profile or level
else
return;
- tag = av_codec_get_tag(tags, par->codec_id);
+ tag = par->codec_tag;
+ if (!tag)
+ tag = av_codec_get_tag(tags, par->codec_id);
if (!tag)
return;
if (size < 5)
// write out to file
*range_length = avio_close_dyn_buf(os->ctx->pb, &buffer);
os->ctx->pb = NULL;
- avio_write(os->out, buffer + os->written_len, *range_length - os->written_len);
+ if (os->out)
+ avio_write(os->out, buffer + os->written_len, *range_length - os->written_len);
os->written_len = 0;
av_free(buffer);
snprintf(playlist_name, string_size, "media_%d.m3u8", id);
}
+static void get_start_index_number(OutputStream *os, DASHContext *c,
+ int *start_index, int *start_number) {
+ *start_index = 0;
+ *start_number = 1;
+ if (c->window_size) {
+ *start_index = FFMAX(os->nb_segments - c->window_size, 0);
+ *start_number = FFMAX(os->segment_index - c->window_size, 1);
+ }
+}
+
+static void write_hls_media_playlist(OutputStream *os, AVFormatContext *s,
+ int representation_id, int final,
+ char *prefetch_url) {
+ DASHContext *c = s->priv_data;
+ int timescale = os->ctx->streams[0]->time_base.den;
+ char temp_filename_hls[1024];
+ char filename_hls[1024];
+ AVDictionary *http_opts = NULL;
+ int target_duration = 0;
+ int ret = 0;
+ const char *proto = avio_find_protocol_name(c->dirname);
+ int use_rename = proto && !strcmp(proto, "file");
+ int i, start_index, start_number;
+ double prog_date_time = 0;
+
+ get_start_index_number(os, c, &start_index, &start_number);
+
+ if (!c->hls_playlist || start_index >= os->nb_segments ||
+ os->segment_type != SEGMENT_TYPE_MP4)
+ return;
+
+ get_hls_playlist_name(filename_hls, sizeof(filename_hls),
+ c->dirname, representation_id);
+
+ snprintf(temp_filename_hls, sizeof(temp_filename_hls), use_rename ? "%s.tmp" : "%s", filename_hls);
+
+ set_http_options(&http_opts, c);
+ ret = dashenc_io_open(s, &c->m3u8_out, temp_filename_hls, &http_opts);
+ av_dict_free(&http_opts);
+ if (ret < 0) {
+ handle_io_open_error(s, ret, temp_filename_hls);
+ return;
+ }
+ for (i = start_index; i < os->nb_segments; i++) {
+ Segment *seg = os->segments[i];
+ double duration = (double) seg->duration / timescale;
+ if (target_duration <= duration)
+ target_duration = lrint(duration);
+ }
+
+ ff_hls_write_playlist_header(c->m3u8_out, 6, -1, target_duration,
+ start_number, PLAYLIST_TYPE_NONE);
+
+ ff_hls_write_init_file(c->m3u8_out, os->initfile, c->single_file,
+ os->init_range_length, os->init_start_pos);
+
+ for (i = start_index; i < os->nb_segments; i++) {
+ Segment *seg = os->segments[i];
+
+ if (prog_date_time == 0) {
+ if (os->nb_segments == 1)
+ prog_date_time = c->start_time_s;
+ else
+ prog_date_time = seg->prog_date_time;
+ }
+ seg->prog_date_time = prog_date_time;
+
+ ret = ff_hls_write_file_entry(c->m3u8_out, 0, c->single_file,
+ (double) seg->duration / timescale, 0,
+ seg->range_length, seg->start_pos, NULL,
+ c->single_file ? os->initfile : seg->file,
+ &prog_date_time);
+ if (ret < 0) {
+ av_log(os->ctx, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
+ }
+ }
+
+ if (prefetch_url)
+ avio_printf(c->m3u8_out, "#EXT-X-PREFETCH:%s\n", prefetch_url);
+
+ if (final)
+ ff_hls_write_end_list(c->m3u8_out);
+
+ dashenc_io_close(s, &c->m3u8_out, temp_filename_hls);
+
+ if (use_rename)
+ if (avpriv_io_move(temp_filename_hls, filename_hls) < 0) {
+ av_log(os->ctx, AV_LOG_WARNING, "renaming file %s to %s failed\n\n", temp_filename_hls, filename_hls);
+ }
+}
+
static int flush_init_segment(AVFormatContext *s, OutputStream *os)
{
DASHContext *c = s->priv_data;
return ret;
os->pos = os->init_range_length = range_length;
- if (!c->single_file)
- ff_format_io_close(s, &os->out);
+ if (!c->single_file) {
+ char filename[1024];
+ snprintf(filename, sizeof(filename), "%s%s", c->dirname, os->initfile);
+ dashenc_io_close(s, &os->out, filename);
+ }
return 0;
}
return;
for (i = 0; i < s->nb_streams; i++) {
OutputStream *os = &c->streams[i];
- if (os->ctx && os->ctx_inited)
- av_write_trailer(os->ctx);
if (os->ctx && os->ctx->pb)
ffio_free_dyn_buf(&os->ctx->pb);
ff_format_io_close(s, &os->out);
for (j = 0; j < os->nb_segments; j++)
av_free(os->segments[j]);
av_free(os->segments);
+ av_freep(&os->single_file_name);
+ av_freep(&os->init_seg_name);
+ av_freep(&os->media_seg_name);
}
av_freep(&c->streams);
int representation_id, int final)
{
DASHContext *c = s->priv_data;
- int i, start_index = 0, start_number = 1;
- if (c->window_size) {
- start_index = FFMAX(os->nb_segments - c->window_size, 0);
- start_number = FFMAX(os->segment_index - c->window_size, 1);
- }
+ int i, start_index, start_number;
+ get_start_index_number(os, c, &start_index, &start_number);
if (c->use_template) {
int timescale = c->use_timeline ? os->ctx->streams[0]->time_base.den : AV_TIME_BASE;
avio_printf(out, "availabilityTimeOffset=\"%.3f\" ",
os->availability_time_offset);
}
- avio_printf(out, "initialization=\"%s\" media=\"%s\" startNumber=\"%d\">\n", c->init_seg_name, c->media_seg_name, c->use_timeline ? start_number : 1);
+ avio_printf(out, "initialization=\"%s\" media=\"%s\" startNumber=\"%d\">\n", os->init_seg_name, os->media_seg_name, c->use_timeline ? start_number : 1);
if (c->use_timeline) {
int64_t cur_time = 0;
avio_printf(out, "\t\t\t\t\t<SegmentTimeline>\n");
cur_time = seg->time;
avio_printf(out, "t=\"%"PRId64"\" ", seg->time);
}
- avio_printf(out, "d=\"%d\" ", seg->duration);
+ avio_printf(out, "d=\"%"PRId64"\" ", seg->duration);
while (i + repeat + 1 < os->nb_segments &&
os->segments[i + repeat + 1]->duration == seg->duration &&
os->segments[i + repeat + 1]->time == os->segments[i + repeat]->time + os->segments[i + repeat]->duration)
}
avio_printf(out, "\t\t\t\t</SegmentList>\n");
}
- if (c->hls_playlist && start_index < os->nb_segments)
- {
- int timescale = os->ctx->streams[0]->time_base.den;
- char temp_filename_hls[1024];
- char filename_hls[1024];
- AVDictionary *http_opts = NULL;
- int target_duration = 0;
- int ret = 0;
- const char *proto = avio_find_protocol_name(c->dirname);
- int use_rename = proto && !strcmp(proto, "file");
-
- get_hls_playlist_name(filename_hls, sizeof(filename_hls),
- c->dirname, representation_id);
-
- snprintf(temp_filename_hls, sizeof(temp_filename_hls), use_rename ? "%s.tmp" : "%s", filename_hls);
-
- set_http_options(&http_opts, c);
- dashenc_io_open(s, &c->m3u8_out, temp_filename_hls, &http_opts);
- av_dict_free(&http_opts);
- for (i = start_index; i < os->nb_segments; i++) {
- Segment *seg = os->segments[i];
- double duration = (double) seg->duration / timescale;
- if (target_duration <= duration)
- target_duration = lrint(duration);
- }
-
- ff_hls_write_playlist_header(c->m3u8_out, 6, -1, target_duration,
- start_number, PLAYLIST_TYPE_NONE);
-
- ff_hls_write_init_file(c->m3u8_out, os->initfile, c->single_file,
- os->init_range_length, os->init_start_pos);
-
- for (i = start_index; i < os->nb_segments; i++) {
- Segment *seg = os->segments[i];
- ret = ff_hls_write_file_entry(c->m3u8_out, 0, c->single_file,
- (double) seg->duration / timescale, 0,
- seg->range_length, seg->start_pos, NULL,
- c->single_file ? os->initfile : seg->file,
- NULL);
- if (ret < 0) {
- av_log(os->ctx, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
- }
- }
-
- if (final)
- ff_hls_write_end_list(c->m3u8_out);
-
- dashenc_io_close(s, &c->m3u8_out, temp_filename_hls);
-
- if (use_rename)
- if (avpriv_io_move(temp_filename_hls, filename_hls) < 0) {
- av_log(os->ctx, AV_LOG_WARNING, "renaming file %s to %s failed\n\n", temp_filename_hls, filename_hls);
- }
+ if (!c->lhls || final) {
+ write_hls_media_playlist(os, s, representation_id, final, NULL);
}
}
static void format_date_now(char *buf, int size)
{
- time_t t = time(NULL);
struct tm *ptm, tmbuf;
- ptm = gmtime_r(&t, &tmbuf);
+ int64_t time_us = av_gettime();
+ int64_t time_ms = time_us / 1000;
+ const time_t time_s = time_ms / 1000;
+ int millisec = time_ms - (time_s * 1000);
+ ptm = gmtime_r(&time_s, &tmbuf);
if (ptm) {
- if (!strftime(buf, size, "%Y-%m-%dT%H:%M:%SZ", ptm))
+ int len;
+ if (!strftime(buf, size, "%Y-%m-%dT%H:%M:%S", ptm)) {
buf[0] = '\0';
+ return;
+ }
+ len = strlen(buf);
+ snprintf(buf + len, size - len, ".%03dZ", millisec);
}
}
if (as->media_type == AVMEDIA_TYPE_VIDEO) {
AVStream *st = s->streams[i];
avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"video/%s\" codecs=\"%s\"%s width=\"%d\" height=\"%d\"",
- i, c->format_name, os->codec_str, bandwidth_str, s->streams[i]->codecpar->width, s->streams[i]->codecpar->height);
+ i, os->format_name, os->codec_str, bandwidth_str, s->streams[i]->codecpar->width, s->streams[i]->codecpar->height);
if (st->avg_frame_rate.num)
avio_printf(out, " frameRate=\"%d/%d\"", st->avg_frame_rate.num, st->avg_frame_rate.den);
avio_printf(out, ">\n");
} else {
avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"audio/%s\" codecs=\"%s\"%s audioSamplingRate=\"%d\">\n",
- i, c->format_name, os->codec_str, bandwidth_str, s->streams[i]->codecpar->sample_rate);
+ i, os->format_name, os->codec_str, bandwidth_str, s->streams[i]->codecpar->sample_rate);
avio_printf(out, "\t\t\t\t<AudioChannelConfiguration schemeIdUri=\"urn:mpeg:dash:23003:3:audio_channel_configuration:2011\" value=\"%d\" />\n",
s->streams[i]->codecpar->channels);
}
snprintf(temp_filename, sizeof(temp_filename), use_rename ? "%s.tmp" : "%s", s->url);
set_http_options(&opts, c);
ret = dashenc_io_open(s, &c->mpd_out, temp_filename, &opts);
+ av_dict_free(&opts);
if (ret < 0) {
- av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", temp_filename);
- return ret;
+ return handle_io_open_error(s, ret, temp_filename);
}
out = c->mpd_out;
- av_dict_free(&opts);
avio_printf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
avio_printf(out, "<MPD xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
"\txmlns=\"urn:mpeg:dash:schema:mpd:2011\"\n"
return ret;
}
- if (c->hls_playlist && !c->master_playlist_created) {
+ if (c->hls_playlist) {
char filename_hls[1024];
const char *audio_group = "A1";
char audio_codec_str[128] = "\0";
int is_default = 1;
int max_audio_bitrate = 0;
+ // Publish master playlist only the configured rate
+ if (c->master_playlist_created && (!c->master_publish_rate ||
+ c->streams[0].segment_index % c->master_publish_rate))
+ return 0;
+
if (*c->dirname)
snprintf(filename_hls, sizeof(filename_hls), "%smaster.m3u8", c->dirname);
else
snprintf(temp_filename, sizeof(temp_filename), use_rename ? "%s.tmp" : "%s", filename_hls);
set_http_options(&opts, c);
- ret = avio_open2(&out, temp_filename, AVIO_FLAG_WRITE, NULL, &opts);
+ ret = dashenc_io_open(s, &c->m3u8_out, temp_filename, &opts);
+ av_dict_free(&opts);
if (ret < 0) {
- av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", temp_filename);
- return ret;
+ return handle_io_open_error(s, ret, temp_filename);
}
- av_dict_free(&opts);
- ff_hls_write_playlist_version(out, 7);
+ ff_hls_write_playlist_version(c->m3u8_out, 7);
for (i = 0; i < s->nb_streams; i++) {
char playlist_file[64];
OutputStream *os = &c->streams[i];
if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO)
continue;
+ if (os->segment_type != SEGMENT_TYPE_MP4)
+ continue;
get_hls_playlist_name(playlist_file, sizeof(playlist_file), NULL, i);
- ff_hls_write_audio_rendition(out, (char *)audio_group,
- playlist_file, i, is_default);
+ ff_hls_write_audio_rendition(c->m3u8_out, (char *)audio_group,
+ playlist_file, NULL, i, is_default);
max_audio_bitrate = FFMAX(st->codecpar->bit_rate +
os->muxer_overhead, max_audio_bitrate);
if (!av_strnstr(audio_codec_str, os->codec_str, sizeof(audio_codec_str))) {
AVStream *st = s->streams[i];
OutputStream *os = &c->streams[i];
char *agroup = NULL;
+ char *codec_str_ptr = NULL;
int stream_bitrate = st->codecpar->bit_rate + os->muxer_overhead;
+ if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
+ continue;
+ if (os->segment_type != SEGMENT_TYPE_MP4)
+ continue;
av_strlcpy(codec_str, os->codec_str, sizeof(codec_str));
- if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && max_audio_bitrate) {
+ if (max_audio_bitrate) {
agroup = (char *)audio_group;
stream_bitrate += max_audio_bitrate;
av_strlcat(codec_str, ",", sizeof(codec_str));
av_strlcat(codec_str, audio_codec_str, sizeof(codec_str));
}
+ if (st->codecpar->codec_id != AV_CODEC_ID_HEVC) {
+ codec_str_ptr = codec_str;
+ }
get_hls_playlist_name(playlist_file, sizeof(playlist_file), NULL, i);
- ff_hls_write_stream_info(st, out, stream_bitrate, playlist_file, agroup,
- codec_str, NULL);
+ ff_hls_write_stream_info(st, c->m3u8_out, stream_bitrate,
+ playlist_file, agroup,
+ codec_str_ptr, NULL);
}
- avio_close(out);
+ dashenc_io_close(s, &c->m3u8_out, temp_filename);
if (use_rename)
if ((ret = avpriv_io_move(temp_filename, filename_hls)) < 0)
return ret;
c->seg_duration = c->min_seg_duration;
}
#endif
+ if (c->lhls && s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
+ av_log(s, AV_LOG_ERROR,
+ "LHLS is experimental, Please set -strict experimental in order to enable it.\n");
+ return AVERROR_EXPERIMENTAL;
+ }
+
+ if (c->lhls && !c->streaming) {
+ av_log(s, AV_LOG_WARNING, "LHLS option will be ignored as streaming is not enabled\n");
+ c->lhls = 0;
+ }
+
+ if (c->lhls && !c->hls_playlist) {
+ av_log(s, AV_LOG_WARNING, "LHLS option will be ignored as hls_playlist is not enabled\n");
+ c->lhls = 0;
+ }
av_strlcpy(c->dirname, s->url, sizeof(c->dirname));
ptr = strrchr(c->dirname, '/');
if ((ret = parse_adaptation_sets(s)) < 0)
return ret;
+ if ((ret = init_segment_types(s)) < 0)
+ return ret;
+
for (i = 0; i < s->nb_streams; i++) {
OutputStream *os = &c->streams[i];
AdaptationSet *as = &c->as[os->as_idx - 1];
if (!ctx)
return AVERROR(ENOMEM);
- c->format_name = get_format_str(c->segment_type);
- if (!c->format_name)
- return AVERROR_MUXER_NOT_FOUND;
- if (c->segment_type == SEGMENT_TYPE_WEBM) {
- if ((!c->single_file && check_file_extension(c->init_seg_name, c->format_name) != 0) ||
- (!c->single_file && check_file_extension(c->media_seg_name, c->format_name) != 0) ||
- (c->single_file && check_file_extension(c->single_file_name, c->format_name) != 0)) {
+ if (c->init_seg_name) {
+ os->init_seg_name = av_strireplace(c->init_seg_name, "$ext$", os->format_name);
+ if (!os->init_seg_name)
+ return AVERROR(ENOMEM);
+ }
+ if (c->media_seg_name) {
+ os->media_seg_name = av_strireplace(c->media_seg_name, "$ext$", os->format_name);
+ if (!os->media_seg_name)
+ return AVERROR(ENOMEM);
+ }
+ if (c->single_file_name) {
+ os->single_file_name = av_strireplace(c->single_file_name, "$ext$", os->format_name);
+ if (!os->single_file_name)
+ return AVERROR(ENOMEM);
+ }
+
+ if (os->segment_type == SEGMENT_TYPE_WEBM) {
+ if ((!c->single_file && check_file_extension(os->init_seg_name, os->format_name) != 0) ||
+ (!c->single_file && check_file_extension(os->media_seg_name, os->format_name) != 0) ||
+ (c->single_file && check_file_extension(os->single_file_name, os->format_name) != 0)) {
av_log(s, AV_LOG_WARNING,
"One or many segment file names doesn't end with .webm. "
"Override -init_seg_name and/or -media_seg_name and/or "
}
}
- ctx->oformat = av_guess_format(c->format_name, NULL, NULL);
+ ctx->oformat = av_guess_format(os->format_name, NULL, NULL);
if (!ctx->oformat)
return AVERROR_MUXER_NOT_FOUND;
os->ctx = ctx;
return ret;
if (c->single_file) {
- if (c->single_file_name)
- ff_dash_fill_tmpl_params(os->initfile, sizeof(os->initfile), c->single_file_name, i, 0, os->bit_rate, 0);
+ if (os->single_file_name)
+ ff_dash_fill_tmpl_params(os->initfile, sizeof(os->initfile), os->single_file_name, i, 0, os->bit_rate, 0);
else
- snprintf(os->initfile, sizeof(os->initfile), "%s-stream%d.m4s", basename, i);
+ snprintf(os->initfile, sizeof(os->initfile), "%s-stream%d.%s", basename, i, os->format_name);
} else {
- ff_dash_fill_tmpl_params(os->initfile, sizeof(os->initfile), c->init_seg_name, i, 0, os->bit_rate, 0);
+ ff_dash_fill_tmpl_params(os->initfile, sizeof(os->initfile), os->init_seg_name, i, 0, os->bit_rate, 0);
}
snprintf(filename, sizeof(filename), "%s%s", c->dirname, os->initfile);
set_http_options(&opts, c);
ret = s->io_open(s, &os->out, filename, AVIO_FLAG_WRITE, &opts);
+ av_dict_free(&opts);
if (ret < 0)
return ret;
- av_dict_free(&opts);
os->init_start_pos = 0;
if (c->format_options_str) {
return ret;
}
- if (c->segment_type == SEGMENT_TYPE_MP4) {
+ if (os->segment_type == SEGMENT_TYPE_MP4) {
if (c->streaming)
- av_dict_set(&opts, "movflags", "frag_every_frame+dash+delay_moov", 0);
+ // frag_every_frame : Allows lower latency streaming
+ // skip_sidx : Reduce bitrate overhead
+ // skip_trailer : Avoids growing memory usage with time
+ av_dict_set(&opts, "movflags", "frag_every_frame+dash+delay_moov+skip_sidx+skip_trailer", 0);
else
av_dict_set(&opts, "movflags", "frag_custom+dash+delay_moov", 0);
} else {
av_dict_set_int(&opts, "dash_track_number", i + 1, 0);
av_dict_set_int(&opts, "live", 1, 0);
}
- if ((ret = avformat_init_output(ctx, &opts)) < 0)
+ ret = avformat_init_output(ctx, &opts);
+ av_dict_free(&opts);
+ if (ret < 0)
return ret;
os->ctx_inited = 1;
avio_flush(ctx->pb);
- av_dict_free(&opts);
av_log(s, AV_LOG_VERBOSE, "Representation %d init segment will be written to: %s\n", i, filename);
// Flush init segment
// Only for WebM segment, since for mp4 delay_moov is set and
// the init segment is thus flushed after the first packets.
- if (c->segment_type == SEGMENT_TYPE_WEBM &&
+ if (os->segment_type == SEGMENT_TYPE_WEBM &&
(ret = flush_init_segment(s, os)) < 0)
return ret;
}
}
static int add_segment(OutputStream *os, const char *file,
- int64_t time, int duration,
+ int64_t time, int64_t duration,
int64_t start_pos, int64_t range_length,
int64_t index_length, int next_exp_index)
{
}
av_dict_free(&http_opts);
- dashenc_io_close(s, &out, filename);
- } else if (unlink(filename) < 0) {
- av_log(s, AV_LOG_ERROR, "failed to delete %s: %s\n", filename, strerror(errno));
+ ff_format_io_close(s, &out);
+ } else {
+ int res = avpriv_io_delete(filename);
+ if (res < 0) {
+ char errbuf[AV_ERROR_MAX_STRING_SIZE];
+ av_strerror(res, errbuf, sizeof(errbuf));
+ av_log(s, (res == AVERROR(ENOENT) ? AV_LOG_WARNING : AV_LOG_ERROR), "failed to delete %s: %s\n", filename, errbuf);
+ }
+ }
+}
+
+static int dashenc_delete_segment_file(AVFormatContext *s, const char* file)
+{
+ DASHContext *c = s->priv_data;
+ size_t dirname_len, file_len;
+ char filename[1024];
+
+ dirname_len = strlen(c->dirname);
+ if (dirname_len >= sizeof(filename)) {
+ av_log(s, AV_LOG_WARNING, "Cannot delete segments as the directory path is too long: %"PRIu64" characters: %s\n",
+ (uint64_t)dirname_len, c->dirname);
+ return AVERROR(ENAMETOOLONG);
+ }
+
+ memcpy(filename, c->dirname, dirname_len);
+
+ file_len = strlen(file);
+ if ((dirname_len + file_len) >= sizeof(filename)) {
+ av_log(s, AV_LOG_WARNING, "Cannot delete segments as the path is too long: %"PRIu64" characters: %s%s\n",
+ (uint64_t)(dirname_len + file_len), c->dirname, file);
+ return AVERROR(ENAMETOOLONG);
+ }
+
+ memcpy(filename + dirname_len, file, file_len + 1); // include the terminating zero
+ dashenc_delete_file(s, filename);
+
+ return 0;
+}
+
+static inline void dashenc_delete_media_segments(AVFormatContext *s, OutputStream *os, int remove_count)
+{
+ for (int i = 0; i < remove_count; ++i) {
+ dashenc_delete_segment_file(s, os->segments[i]->file);
+
+ // Delete the segment regardless of whether the file was successfully deleted
+ av_free(os->segments[i]);
}
+
+ os->nb_segments -= remove_count;
+ memmove(os->segments, os->segments + remove_count, os->nb_segments * sizeof(*os->segments));
}
static int dash_flush(AVFormatContext *s, int final, int stream)
}
if (!c->single_file) {
- if (c->segment_type == SEGMENT_TYPE_MP4 && !os->written_len)
+ if (os->segment_type == SEGMENT_TYPE_MP4 && !os->written_len)
write_styp(os->ctx->pb);
} else {
snprintf(os->full_path, sizeof(os->full_path), "%s%s", c->dirname, os->initfile);
os->pos += range_length;
}
- if (c->window_size || (final && c->remove_at_exit)) {
+ if (c->window_size) {
for (i = 0; i < s->nb_streams; i++) {
OutputStream *os = &c->streams[i];
- int j;
- int remove = os->nb_segments - c->window_size - c->extra_window_size;
- if (final && c->remove_at_exit)
- remove = os->nb_segments;
- if (remove > 0) {
- for (j = 0; j < remove; j++) {
- char filename[1024];
- snprintf(filename, sizeof(filename), "%s%s", c->dirname, os->segments[j]->file);
- dashenc_delete_file(s, filename);
- av_free(os->segments[j]);
- }
- os->nb_segments -= remove;
- memmove(os->segments, os->segments + remove, os->nb_segments * sizeof(*os->segments));
- }
+ int remove_count = os->nb_segments - c->window_size - c->extra_window_size;
+ if (remove_count > 0)
+ dashenc_delete_media_segments(s, os, remove_count);
}
}
os->first_pts = pkt->pts;
os->last_pts = pkt->pts;
- if (!c->availability_start_time[0])
+ if (!c->availability_start_time[0]) {
+ int64_t start_time_us = av_gettime();
+ c->start_time_s = start_time_us / 1000000;
format_date_now(c->availability_start_time,
sizeof(c->availability_start_time));
+ }
if (!os->availability_time_offset && pkt->duration) {
int64_t frame_duration = av_rescale_q(pkt->duration, st->time_base,
int use_rename = proto && !strcmp(proto, "file");
os->filename[0] = os->full_path[0] = os->temp_path[0] = '\0';
ff_dash_fill_tmpl_params(os->filename, sizeof(os->filename),
- c->media_seg_name, pkt->stream_index,
+ os->media_seg_name, pkt->stream_index,
os->segment_index, os->bit_rate, os->start_pts);
snprintf(os->full_path, sizeof(os->full_path), "%s%s", c->dirname,
os->filename);
use_rename ? "%s.tmp" : "%s", os->full_path);
set_http_options(&opts, c);
ret = dashenc_io_open(s, &os->out, os->temp_path, &opts);
- if (ret < 0)
- return ret;
av_dict_free(&opts);
+ if (ret < 0) {
+ return handle_io_open_error(s, ret, os->temp_path);
+ }
+ if (c->lhls) {
+ char *prefetch_url = use_rename ? NULL : os->filename;
+ write_hls_media_playlist(os, s, pkt->stream_index, 0, prefetch_url);
+ }
}
//write out the data immediately in streaming mode
- if (c->streaming && c->segment_type == SEGMENT_TYPE_MP4) {
+ if (c->streaming && os->segment_type == SEGMENT_TYPE_MP4) {
int len = 0;
uint8_t *buf = NULL;
if (!os->written_len)
write_styp(os->ctx->pb);
avio_flush(os->ctx->pb);
len = avio_get_dyn_buf (os->ctx->pb, &buf);
- avio_write(os->out, buf + os->written_len, len - os->written_len);
+ if (os->out) {
+ avio_write(os->out, buf + os->written_len, len - os->written_len);
+ avio_flush(os->out);
+ }
os->written_len = len;
- avio_flush(os->out);
}
return ret;
static int dash_write_trailer(AVFormatContext *s)
{
DASHContext *c = s->priv_data;
+ int i;
if (s->nb_streams > 0) {
OutputStream *os = &c->streams[0];
}
dash_flush(s, 1, -1);
+ for (i = 0; i < s->nb_streams; ++i) {
+ OutputStream *os = &c->streams[i];
+ if (os->ctx && os->ctx_inited) {
+ av_write_trailer(os->ctx);
+ }
+
+ if (c->remove_at_exit) {
+ dashenc_delete_media_segments(s, os, os->nb_segments);
+ dashenc_delete_segment_file(s, os->initfile);
+ }
+ }
+
if (c->remove_at_exit) {
- char filename[1024];
- int i;
- for (i = 0; i < s->nb_streams; i++) {
- OutputStream *os = &c->streams[i];
- snprintf(filename, sizeof(filename), "%s%s", c->dirname, os->initfile);
+ dashenc_delete_file(s, s->url);
+
+ if (c->hls_playlist && c->master_playlist_created) {
+ char filename[1024];
+ for (i = 0; i < s->nb_streams; ++i) {
+ OutputStream *os = &c->streams[i];
+ if (os->segment_type == SEGMENT_TYPE_MP4) {
+ get_hls_playlist_name(filename, sizeof(filename), c->dirname, i);
+ dashenc_delete_file(s, filename);
+ }
+ }
+ snprintf(filename, sizeof(filename), "%smaster.m3u8", c->dirname);
dashenc_delete_file(s, filename);
}
- dashenc_delete_file(s, s->url);
}
return 0;
{ "use_timeline", "Use SegmentTimeline in SegmentTemplate", OFFSET(use_timeline), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, E },
{ "single_file", "Store all segments in one file, accessed using byte ranges", OFFSET(single_file), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
{ "single_file_name", "DASH-templated name to be used for baseURL. Implies storing all segments in one file, accessed using byte ranges", OFFSET(single_file_name), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
- { "init_seg_name", "DASH-templated name to used for the initialization segment", OFFSET(init_seg_name), AV_OPT_TYPE_STRING, {.str = "init-stream$RepresentationID$.m4s"}, 0, 0, E },
- { "media_seg_name", "DASH-templated name to used for the media segments", OFFSET(media_seg_name), AV_OPT_TYPE_STRING, {.str = "chunk-stream$RepresentationID$-$Number%05d$.m4s"}, 0, 0, E },
+ { "init_seg_name", "DASH-templated name to used for the initialization segment", OFFSET(init_seg_name), AV_OPT_TYPE_STRING, {.str = "init-stream$RepresentationID$.$ext$"}, 0, 0, E },
+ { "media_seg_name", "DASH-templated name to used for the media segments", OFFSET(media_seg_name), AV_OPT_TYPE_STRING, {.str = "chunk-stream$RepresentationID$-$Number%05d$.$ext$"}, 0, 0, E },
{ "utc_timing_url", "URL of the page that will return the UTC timestamp in ISO format", OFFSET(utc_timing_url), AV_OPT_TYPE_STRING, { 0 }, 0, 0, E },
{ "method", "set the HTTP method", OFFSET(method), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E },
{ "http_user_agent", "override User-Agent field in HTTP header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
{ "timeout", "set timeout for socket I/O operations", OFFSET(timeout), AV_OPT_TYPE_DURATION, { .i64 = -1 }, -1, INT_MAX, .flags = E },
{ "index_correction", "Enable/Disable segment index correction logic", OFFSET(index_correction), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
{ "format_options","set list of options for the container format (mp4/webm) used for dash", OFFSET(format_options_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, E},
- { "dash_segment_type", "set dash segment files type", OFFSET(segment_type), AV_OPT_TYPE_INT, {.i64 = SEGMENT_TYPE_MP4 }, 0, SEGMENT_TYPE_NB - 1, E, "segment_type"},
+ { "dash_segment_type", "set dash segment files type", OFFSET(segment_type_option), AV_OPT_TYPE_INT, {.i64 = SEGMENT_TYPE_AUTO }, 0, SEGMENT_TYPE_NB - 1, E, "segment_type"},
+ { "auto", "select segment file format based on codec", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_AUTO }, 0, UINT_MAX, E, "segment_type"},
{ "mp4", "make segment file in ISOBMFF format", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_MP4 }, 0, UINT_MAX, E, "segment_type"},
{ "webm", "make segment file in WebM format", 0, AV_OPT_TYPE_CONST, {.i64 = SEGMENT_TYPE_WEBM }, 0, UINT_MAX, E, "segment_type"},
+ { "ignore_io_errors", "Ignore IO errors during open and write. Useful for long-duration runs with network output", OFFSET(ignore_io_errors), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
+ { "lhls", "Enable Low-latency HLS(Experimental). Adds #EXT-X-PREFETCH tag with current segment's URI", OFFSET(lhls), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
+ { "master_m3u8_publish_rate", "Publish master playlist every after this many segment intervals", OFFSET(master_publish_rate), AV_OPT_TYPE_INT, {.i64 = 0}, 0, UINT_MAX, E},
{ NULL },
};
projects / ffmpeg / blobdiff