#include "isom.h"
#include "os_support.h"
#include "url.h"
+#include "vpcc.h"
#include "dash.h"
+typedef enum {
+ SEGMENT_TYPE_AUTO = 0,
+ SEGMENT_TYPE_MP4,
+ SEGMENT_TYPE_WEBM,
+ SEGMENT_TYPE_NB
+} SegmentType;
+
typedef struct Segment {
char file[1024];
int64_t start_pos;
int range_length, index_length;
int64_t time;
- int duration;
+ int64_t duration;
int n;
} Segment;
AVFormatContext *ctx;
int ctx_inited, as_idx;
AVIOContext *out;
- char format_name[8];
int packets_written;
char initfile[1024];
int64_t init_start_pos, pos;
int nb_segments, segments_size, segment_index;
Segment **segments;
int64_t first_pts, start_pts, max_pts;
- int64_t last_dts;
+ int64_t last_dts, last_pts;
int bit_rate;
- char bandwidth_str[64];
+ 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;
char filename[1024];
char full_path[1024];
char temp_path[1024];
+ double availability_time_offset;
+ int total_pkt_size;
+ int muxer_overhead;
} OutputStream;
typedef struct DASHContext {
int nb_as;
int window_size;
int extra_window_size;
+#if FF_API_DASH_MIN_SEG_DURATION
int min_seg_duration;
+#endif
+ int64_t seg_duration;
int remove_at_exit;
int use_template;
int use_timeline;
int64_t total_duration;
char availability_start_time[100];
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;
AVIOContext *m3u8_out;
int streaming;
int64_t timeout;
+ int index_correction;
+ char *format_options_str;
+ SegmentType segment_type_option; /* segment type as specified in options */
+ int ignore_io_errors;
} 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 }
+};
+
+static struct format_string {
+ 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
}
}
+static const char *get_format_str(SegmentType segment_type) {
+ int i;
+ for (i = 0; i < SEGMENT_TYPE_NB; i++)
+ if (formats[i].segment_type == segment_type)
+ return formats[i].str;
+ 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)
+ return -1;
+ dot = strrchr(filename, '.');
+ if (dot && !strcmp(dot + 1, extension))
+ return 0;
+ return -1;
+}
+
+static void set_vp9_codec_str(AVFormatContext *s, AVCodecParameters *par,
+ AVRational *frame_rate, char *str, int size) {
+ VPCC vpcc;
+ int ret = ff_isom_get_vpcc_features(s, par, frame_rate, &vpcc);
+ if (ret == 0) {
+ 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
+ av_log(s, AV_LOG_WARNING, "Could not find VP9 profile and/or level\n");
+ av_strlcpy(str, "vp9", size);
+ }
+ return;
+}
+
static void set_codec_str(AVFormatContext *s, AVCodecParameters *par,
- char *str, int size)
+ AVRational *frame_rate, char *str, int size)
{
const AVCodecTag *tags[2] = { NULL, NULL };
uint32_t tag;
// common Webm codecs are not part of RFC 6381
for (i = 0; codecs[i].id; i++)
if (codecs[i].id == par->codec_id) {
- av_strlcpy(str, codecs[i].str, size);
+ if (codecs[i].id == AV_CODEC_ID_VP9) {
+ set_vp9_codec_str(s, par, frame_rate, str, size);
+ } else {
+ av_strlcpy(str, codecs[i].str, size);
+ }
return;
}
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);
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);
if (c->use_template) {
int timescale = c->use_timeline ? os->ctx->streams[0]->time_base.den : AV_TIME_BASE;
avio_printf(out, "\t\t\t\t<SegmentTemplate timescale=\"%d\" ", timescale);
- if (!c->use_timeline)
- avio_printf(out, "duration=\"%"PRId64"\" ", c->last_duration);
- avio_printf(out, "initialization=\"%s\" media=\"%s\" startNumber=\"%d\">\n", c->init_seg_name, c->media_seg_name, c->use_timeline ? start_number : 1);
+ if (!c->use_timeline) {
+ avio_printf(out, "duration=\"%"PRId64"\" ", c->seg_duration);
+ if (c->streaming && os->availability_time_offset)
+ avio_printf(out, "availabilityTimeOffset=\"%.3f\" ",
+ os->availability_time_offset);
+ }
+ 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)
+ if (c->hls_playlist && start_index < os->nb_segments && os->segment_type == SEGMENT_TYPE_MP4)
{
int timescale = os->ctx->streams[0]->time_base.den;
char temp_filename_hls[1024];
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);
+ 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;
for (i = 0; i < s->nb_streams; i++) {
OutputStream *os = &c->streams[i];
+ char bandwidth_str[64] = {'\0'};
if (os->as_idx - 1 != as_index)
continue;
+ if (os->bit_rate > 0)
+ snprintf(bandwidth_str, sizeof(bandwidth_str), " bandwidth=\"%d\"",
+ os->bit_rate);
+
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, os->format_name, os->codec_str, os->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, os->format_name, os->codec_str, os->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"
update_period = 500;
avio_printf(out, "\tminimumUpdatePeriod=\"PT%"PRId64"S\"\n", update_period);
avio_printf(out, "\tsuggestedPresentationDelay=\"PT%"PRId64"S\"\n", c->last_duration / AV_TIME_BASE);
- if (!c->availability_start_time[0] && s->nb_streams > 0 && c->streams[0].nb_segments > 0) {
- format_date_now(c->availability_start_time, sizeof(c->availability_start_time));
- }
if (c->availability_start_time[0])
avio_printf(out, "\tavailabilityStartTime=\"%s\"\n", c->availability_start_time);
format_date_now(now_str, sizeof(now_str));
if (c->hls_playlist && !c->master_playlist_created) {
char filename_hls[1024];
const char *audio_group = "A1";
+ char audio_codec_str[128] = "\0";
int is_default = 1;
int max_audio_bitrate = 0;
if (*c->dirname)
- snprintf(filename_hls, sizeof(filename_hls), "%s/master.m3u8", c->dirname);
+ snprintf(filename_hls, sizeof(filename_hls), "%smaster.m3u8", c->dirname);
else
snprintf(filename_hls, sizeof(filename_hls), "master.m3u8");
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, 6);
+ ff_hls_write_playlist_version(c->m3u8_out, 7);
for (i = 0; i < s->nb_streams; i++) {
char playlist_file[64];
AVStream *st = s->streams[i];
+ 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,
+ ff_hls_write_audio_rendition(c->m3u8_out, (char *)audio_group,
playlist_file, i, is_default);
- max_audio_bitrate = FFMAX(st->codecpar->bit_rate, max_audio_bitrate);
+ 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))) {
+ if (strlen(audio_codec_str))
+ av_strlcat(audio_codec_str, ",", sizeof(audio_codec_str));
+ av_strlcat(audio_codec_str, os->codec_str, sizeof(audio_codec_str));
+ }
is_default = 0;
}
for (i = 0; i < s->nb_streams; i++) {
char playlist_file[64];
+ char codec_str[128];
AVStream *st = s->streams[i];
+ OutputStream *os = &c->streams[i];
char *agroup = NULL;
- int stream_bitrate = st->codecpar->bit_rate;
- if ((st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) && max_audio_bitrate) {
+ 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 (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, NULL, 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;
if (c->single_file)
c->use_template = 0;
+#if FF_API_DASH_MIN_SEG_DURATION
+ if (c->min_seg_duration != 5000000) {
+ av_log(s, AV_LOG_WARNING, "The min_seg_duration option is deprecated and will be removed. Please use the -seg_duration\n");
+ c->seg_duration = c->min_seg_duration;
+ }
+#endif
+
av_strlcpy(c->dirname, s->url, sizeof(c->dirname));
ptr = strrchr(c->dirname, '/');
if (ptr) {
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];
char filename[1024];
os->bit_rate = s->streams[i]->codecpar->bit_rate;
- if (os->bit_rate) {
- snprintf(os->bandwidth_str, sizeof(os->bandwidth_str),
- " bandwidth=\"%d\"", os->bit_rate);
- } else {
+ if (!os->bit_rate) {
int level = s->strict_std_compliance >= FF_COMPLIANCE_STRICT ?
AV_LOG_ERROR : AV_LOG_WARNING;
av_log(s, level, "No bit rate set for stream %d\n", i);
if (!ctx)
return AVERROR(ENOMEM);
- // choose muxer based on codec: webm for VP8/9 and opus, mp4 otherwise
- // note: os->format_name is also used as part of the mimetype of the
- // representation, e.g. video/<format_name>
- if (s->streams[i]->codecpar->codec_id == AV_CODEC_ID_VP8 ||
- s->streams[i]->codecpar->codec_id == AV_CODEC_ID_VP9 ||
- s->streams[i]->codecpar->codec_id == AV_CODEC_ID_OPUS ||
- s->streams[i]->codecpar->codec_id == AV_CODEC_ID_VORBIS) {
- snprintf(os->format_name, sizeof(os->format_name), "webm");
- } else {
- snprintf(os->format_name, sizeof(os->format_name), "mp4");
+ 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 "
+ "-single_file_name to end with the extension .webm\n");
+ }
+ }
+
ctx->oformat = av_guess_format(os->format_name, NULL, NULL);
if (!ctx->oformat)
return AVERROR_MUXER_NOT_FOUND;
os->ctx = ctx;
- ctx->interrupt_callback = s->interrupt_callback;
- ctx->opaque = s->opaque;
- ctx->io_close = s->io_close;
- ctx->io_open = s->io_open;
+ ctx->interrupt_callback = s->interrupt_callback;
+ ctx->opaque = s->opaque;
+ ctx->io_close = s->io_close;
+ ctx->io_open = s->io_open;
+ ctx->strict_std_compliance = s->strict_std_compliance;
if (!(st = avformat_new_stream(ctx, NULL)))
return AVERROR(ENOMEM);
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 (!strcmp(os->format_name, "mp4")) {
+ if (c->format_options_str) {
+ ret = av_dict_parse_string(&opts, c->format_options_str, "=", ":", 0);
+ if (ret < 0)
+ return ret;
+ }
+
+ if (os->segment_type == SEGMENT_TYPE_MP4) {
if (c->streaming)
- av_dict_set(&opts, "movflags", "frag_every_frame+dash+delay_moov", 0);
+ av_dict_set(&opts, "movflags", "frag_every_frame+dash+delay_moov+skip_sidx", 0);
else
av_dict_set(&opts, "movflags", "frag_custom+dash+delay_moov", 0);
} else {
- av_dict_set_int(&opts, "cluster_time_limit", c->min_seg_duration / 1000, 0);
+ av_dict_set_int(&opts, "cluster_time_limit", c->seg_duration / 1000, 0);
av_dict_set_int(&opts, "cluster_size_limit", 5 * 1024 * 1024, 0); // set a large cluster size limit
av_dict_set_int(&opts, "dash", 1, 0);
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
- // except for mp4, since delay_moov is set and the init segment
- // is then flushed after the first packets
- if (strcmp(os->format_name, "mp4")) {
- flush_init_segment(s, os);
- }
-
s->streams[i]->time_base = st->time_base;
// If the muxer wants to shift timestamps, request to have them shifted
// already before being handed to this muxer, so we don't have mismatches
c->has_video = 1;
}
- set_codec_str(s, st->codecpar, os->codec_str, sizeof(os->codec_str));
+ set_codec_str(s, st->codecpar, &st->avg_frame_rate, os->codec_str,
+ sizeof(os->codec_str));
os->first_pts = AV_NOPTS_VALUE;
os->max_pts = AV_NOPTS_VALUE;
os->last_dts = AV_NOPTS_VALUE;
os->segment_index = 1;
}
- if (!c->has_video && c->min_seg_duration <= 0) {
- av_log(s, AV_LOG_WARNING, "no video stream and no min seg duration set\n");
+ if (!c->has_video && c->seg_duration <= 0) {
+ av_log(s, AV_LOG_WARNING, "no video stream and no seg duration set\n");
return AVERROR(EINVAL);
}
return 0;
OutputStream *os = &c->streams[i];
if ((ret = avformat_write_header(os->ctx, NULL)) < 0)
return ret;
+
+ // 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 (os->segment_type == SEGMENT_TYPE_WEBM &&
+ (ret = flush_init_segment(s, os)) < 0)
+ return ret;
}
- ret = write_manifest(s, 0);
- if (!ret)
- av_log(s, AV_LOG_VERBOSE, "Manifest written to: %s\n", s->url);
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)
+ int64_t index_length, int next_exp_index)
{
int err;
Segment *seg;
seg->index_length = index_length;
os->segments[os->nb_segments++] = seg;
os->segment_index++;
+ //correcting the segment index if it has fallen behind the expected value
+ if (os->segment_index < next_exp_index) {
+ av_log(NULL, AV_LOG_WARNING, "Correcting the segment index after file %s: current=%d corrected=%d\n",
+ file, os->segment_index, next_exp_index);
+ os->segment_index = next_exp_index;
+ }
return 0;
}
}
static int update_stream_extradata(AVFormatContext *s, OutputStream *os,
- AVCodecParameters *par)
+ AVCodecParameters *par,
+ AVRational *frame_rate)
{
uint8_t *extradata;
os->ctx->streams[0]->codecpar->extradata = extradata;
os->ctx->streams[0]->codecpar->extradata_size = par->extradata_size;
- set_codec_str(s, par, os->codec_str, sizeof(os->codec_str));
+ set_codec_str(s, par, frame_rate, os->codec_str, sizeof(os->codec_str));
return 0;
}
}
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)
const char *proto = avio_find_protocol_name(s->url);
int use_rename = proto && !strcmp(proto, "file");
- int cur_flush_segment_index = 0;
- if (stream >= 0)
+ int cur_flush_segment_index = 0, next_exp_index = -1;
+ if (stream >= 0) {
cur_flush_segment_index = c->streams[stream].segment_index;
+ //finding the next segment's expected index, based on the current pts value
+ if (c->use_template && !c->use_timeline && c->index_correction &&
+ c->streams[stream].last_pts != AV_NOPTS_VALUE &&
+ c->streams[stream].first_pts != AV_NOPTS_VALUE) {
+ int64_t pts_diff = av_rescale_q(c->streams[stream].last_pts -
+ c->streams[stream].first_pts,
+ s->streams[stream]->time_base,
+ AV_TIME_BASE_Q);
+ next_exp_index = (pts_diff / c->seg_duration) + 1;
+ }
+ }
+
for (i = 0; i < s->nb_streams; i++) {
OutputStream *os = &c->streams[i];
AVStream *st = s->streams[i];
}
if (!c->single_file) {
- if (!strcmp(os->format_name, "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);
}
}
+ if (!os->muxer_overhead)
+ os->muxer_overhead = ((int64_t) (range_length - os->total_pkt_size) *
+ 8 * AV_TIME_BASE) /
+ av_rescale_q(os->max_pts - os->start_pts,
+ st->time_base, AV_TIME_BASE_Q);
+ os->total_pkt_size = 0;
+
if (!os->bit_rate) {
// calculate average bitrate of first segment
int64_t bitrate = (int64_t) range_length * 8 * AV_TIME_BASE / av_rescale_q(os->max_pts - os->start_pts,
st->time_base,
AV_TIME_BASE_Q);
- if (bitrate >= 0) {
+ if (bitrate >= 0)
os->bit_rate = bitrate;
- snprintf(os->bandwidth_str, sizeof(os->bandwidth_str),
- " bandwidth=\"%d\"", os->bit_rate);
- }
}
- add_segment(os, os->filename, os->start_pts, os->max_pts - os->start_pts, os->pos, range_length, index_length);
+ add_segment(os, os->filename, os->start_pts, os->max_pts - os->start_pts, os->pos, range_length, index_length, next_exp_index);
av_log(s, AV_LOG_VERBOSE, "Representation %d media segment %d written to: %s\n", i, os->segment_index, os->full_path);
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);
}
}
DASHContext *c = s->priv_data;
AVStream *st = s->streams[pkt->stream_index];
OutputStream *os = &c->streams[pkt->stream_index];
+ int64_t seg_end_duration, elapsed_duration;
int ret;
- ret = update_stream_extradata(s, os, st->codecpar);
+ ret = update_stream_extradata(s, os, st->codecpar, &st->avg_frame_rate);
if (ret < 0)
return ret;
if (os->first_pts == AV_NOPTS_VALUE)
os->first_pts = pkt->pts;
+ os->last_pts = pkt->pts;
+
+ if (!c->availability_start_time[0])
+ 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,
+ AV_TIME_BASE_Q);
+ os->availability_time_offset = ((double) c->seg_duration -
+ frame_duration) / AV_TIME_BASE;
+ }
+
+ if (c->use_template && !c->use_timeline) {
+ elapsed_duration = pkt->pts - os->first_pts;
+ seg_end_duration = (int64_t) os->segment_index * c->seg_duration;
+ } else {
+ elapsed_duration = pkt->pts - os->start_pts;
+ seg_end_duration = c->seg_duration;
+ }
if ((!c->has_video || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
pkt->flags & AV_PKT_FLAG_KEY && os->packets_written &&
- av_compare_ts(pkt->pts - os->start_pts, st->time_base,
- c->min_seg_duration, AV_TIME_BASE_Q) >= 0) {
+ av_compare_ts(elapsed_duration, st->time_base,
+ seg_end_duration, AV_TIME_BASE_Q) >= 0) {
int64_t prev_duration = c->last_duration;
c->last_duration = av_rescale_q(pkt->pts - os->start_pts,
else
os->max_pts = FFMAX(os->max_pts, pkt->pts + pkt->duration);
os->packets_written++;
+ os->total_pkt_size += pkt->size;
if ((ret = ff_write_chained(os->ctx, 0, pkt, s, 0)) < 0)
return ret;
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);
+ }
}
//write out the data immediately in streaming mode
- if (c->streaming && !strcmp(os->format_name, "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;
{ "adaptation_sets", "Adaptation sets. Syntax: id=0,streams=0,1,2 id=1,streams=3,4 and so on", OFFSET(adaptation_sets), AV_OPT_TYPE_STRING, { 0 }, 0, 0, AV_OPT_FLAG_ENCODING_PARAM },
{ "window_size", "number of segments kept in the manifest", OFFSET(window_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, E },
{ "extra_window_size", "number of segments kept outside of the manifest before removing from disk", OFFSET(extra_window_size), AV_OPT_TYPE_INT, { .i64 = 5 }, 0, INT_MAX, E },
- { "min_seg_duration", "minimum segment duration (in microseconds)", OFFSET(min_seg_duration), AV_OPT_TYPE_INT, { .i64 = 5000000 }, 0, INT_MAX, E },
+#if FF_API_DASH_MIN_SEG_DURATION
+ { "min_seg_duration", "minimum segment duration (in microseconds) (will be deprecated)", OFFSET(min_seg_duration), AV_OPT_TYPE_INT, { .i64 = 5000000 }, 0, INT_MAX, E },
+#endif
+ { "seg_duration", "segment duration (in seconds, fractional value can be set)", OFFSET(seg_duration), AV_OPT_TYPE_DURATION, { .i64 = 5000000 }, 0, INT_MAX, E },
{ "remove_at_exit", "remove all segments when finished", OFFSET(remove_at_exit), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
{ "use_template", "Use SegmentTemplate instead of SegmentList", OFFSET(use_template), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, E },
{ "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},
{ "hls_playlist", "Generate HLS playlist files(master.m3u8, media_%d.m3u8)", OFFSET(hls_playlist), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
{ "streaming", "Enable/Disable streaming mode of output. Each frame will be moof fragment", OFFSET(streaming), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, 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_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 },
{ NULL },
};
projects / ffmpeg / blobdiff