static int write_manifest(AVFormatContext *s, int final) { DASHContext *c = s->priv_data; AVIOContext *out; char temp_filename[1024]; int ret, i; AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0); snprintf(temp_filename, sizeof(temp_filename), "%s.tmp", s->filename); ret = avio_open2(&out, temp_filename, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL); if (ret < 0) { av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", temp_filename); return ret; } 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" "\txmlns:xlink=\"http://www.w3.org/1999/xlink\"\n" "\txsi:schemaLocation=\"urn:mpeg:DASH:schema:MPD:2011 http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-DASH_schema_files/DASH-MPD.xsd\"\n" "\tprofiles=\"urn:mpeg:dash:profile:isoff-live:2011\"\n" "\ttype=\"%s\"\n", final ? "static" : "dynamic"); if (final) { avio_printf(out, "\tmediaPresentationDuration=\""); write_time(out, c->total_duration); avio_printf(out, "\"\n"); } else { int update_period = c->last_duration / AV_TIME_BASE; if (c->use_template && !c->use_timeline) update_period = 500; avio_printf(out, "\tminimumUpdatePeriod=\"PT%dS\"\n", update_period); avio_printf(out, "\tsuggestedPresentationDelay=\"PT%dS\"\n", c->last_duration / AV_TIME_BASE); if (!c->availability_start_time[0] && s->nb_streams > 0 && c->streams[0].nb_segments > 0) { time_t t = time(NULL); struct tm *ptm, tmbuf; ptm = gmtime_r(&t, &tmbuf); if (ptm) { if (!strftime(c->availability_start_time, sizeof(c->availability_start_time), "%Y-%m-%dT%H:%M:%S", ptm)) c->availability_start_time[0] = '\0'; } } if (c->availability_start_time[0]) avio_printf(out, "\tavailabilityStartTime=\"%s\"\n", c->availability_start_time); if (c->window_size && c->use_template) { avio_printf(out, "\ttimeShiftBufferDepth=\""); write_time(out, c->last_duration * c->window_size); avio_printf(out, "\"\n"); } } avio_printf(out, "\tminBufferTime=\""); write_time(out, c->last_duration); avio_printf(out, "\">\n"); avio_printf(out, "\t<ProgramInformation>\n"); if (title) { char *escaped = xmlescape(title->value); avio_printf(out, "\t\t<Title>%s</Title>\n", escaped); av_free(escaped); } avio_printf(out, "\t</ProgramInformation>\n"); if (c->window_size && s->nb_streams > 0 && c->streams[0].nb_segments > 0 && !c->use_template) { OutputStream *os = &c->streams[0]; int start_index = FFMAX(os->nb_segments - c->window_size, 0); int64_t start_time = av_rescale_q(os->segments[start_index]->time, s->streams[0]->time_base, AV_TIME_BASE_Q); avio_printf(out, "\t<Period start=\""); write_time(out, start_time); avio_printf(out, "\">\n"); } else { avio_printf(out, "\t<Period start=\"PT0.0S\">\n"); } if (c->has_video) { avio_printf(out, "\t\t<AdaptationSet id=\"video\" segmentAlignment=\"true\" bitstreamSwitching=\"true\">\n"); for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; OutputStream *os = &c->streams[i]; if (s->streams[i]->codec->codec_type != AVMEDIA_TYPE_VIDEO) continue; avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"video/mp4\" codecs=\"%s\"%s width=\"%d\" height=\"%d\">\n", i, os->codec_str, os->bandwidth_str, st->codec->width, st->codec->height); output_segment_list(&c->streams[i], out, c); avio_printf(out, "\t\t\t</Representation>\n"); } avio_printf(out, "\t\t</AdaptationSet>\n"); } if (c->has_audio) { avio_printf(out, "\t\t<AdaptationSet id=\"audio\" segmentAlignment=\"true\" bitstreamSwitching=\"true\">\n"); for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; OutputStream *os = &c->streams[i]; if (s->streams[i]->codec->codec_type != AVMEDIA_TYPE_AUDIO) continue; avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"audio/mp4\" codecs=\"%s\"%s audioSamplingRate=\"%d\">\n", i, os->codec_str, os->bandwidth_str, st->codec->sample_rate); avio_printf(out, "\t\t\t\t<AudioChannelConfiguration schemeIdUri=\"urn:mpeg:dash:23003:3:audio_channel_configuration:2011\" value=\"%d\" />\n", st->codec->channels); output_segment_list(&c->streams[i], out, c); avio_printf(out, "\t\t\t</Representation>\n"); } avio_printf(out, "\t\t</AdaptationSet>\n"); } avio_printf(out, "\t</Period>\n"); avio_printf(out, "</MPD>\n"); avio_flush(out); avio_close(out); return ff_rename(temp_filename, s->filename, s); }
static int write_manifest(AVFormatContext *s, int final) { DASHContext *c = s->priv_data; AVIOContext *out; char temp_filename[1024]; int ret, i; AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0); snprintf(temp_filename, sizeof(temp_filename), "%s.tmp", s->filename); ret = avio_open2(&out, temp_filename, AVIO_FLAG_WRITE, &s->interrupt_callback, NULL); if (ret < 0) { av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", temp_filename); return ret; } 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" "\txmlns:xlink=\"http://www.w3.org/1999/xlink\"\n" "\txsi:schemaLocation=\"urn:mpeg:DASH:schema:MPD:2011 http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-DASH_schema_files/DASH-MPD.xsd\"\n" "\tprofiles=\"urn:mpeg:dash:profile:isoff-live:2011\"\n" "\ttype=\"%s\"\n", final ? "static" : "dynamic"); if (final) { avio_printf(out, "\tmediaPresentationDuration=\""); write_time(out, c->total_duration); avio_printf(out, "\"\n"); } else { int update_period = c->last_duration / AV_TIME_BASE; if (c->use_template && !c->use_timeline) update_period = 500; avio_printf(out, "\tminimumUpdatePeriod=\"PT%dS\"\n", update_period); avio_printf(out, "\tsuggestedPresentationDelay=\"PT%dS\"\n", c->last_duration / AV_TIME_BASE); if (!c->availability_start_time[0] && s->nb_streams > 0 && c->streams[0].nb_segments > 0) { time_t t = time(NULL); struct tm *ptm, tmbuf; ptm = gmtime_r(&t, &tmbuf); if (ptm) { if (!strftime(c->availability_start_time, sizeof(c->availability_start_time), "%Y-%m-%dT%H:%M:%S", ptm)) c->availability_start_time[0] = '\0'; } } if (c->availability_start_time[0]) avio_printf(out, "\tavailabilityStartTime=\"%s\"\n", c->availability_start_time); if (c->window_size && c->use_template) { avio_printf(out, "\ttimeShiftBufferDepth=\""); write_time(out, c->last_duration * c->window_size); avio_printf(out, "\"\n"); } } avio_printf(out, "\tminBufferTime=\""); write_time(out, c->last_duration); avio_printf(out, "\">\n"); avio_printf(out, "\t<ProgramInformation>\n"); if (title) { char *escaped = xmlescape(title->value); avio_printf(out, "\t\t<Title>%s</Title>\n", escaped); av_free(escaped); } avio_printf(out, "\t</ProgramInformation>\n"); if (c->window_size && s->nb_streams > 0 && c->streams[0].nb_segments > 0 && !c->use_template) { OutputStream *os = &c->streams[0]; int start_index = FFMAX(os->nb_segments - c->window_size, 0); int64_t start_time = av_rescale_q(os->segments[start_index]->time, s->streams[0]->time_base, AV_TIME_BASE_Q); avio_printf(out, "\t<Period start=\""); write_time(out, start_time); avio_printf(out, "\">\n"); } else { avio_printf(out, "\t<Period start=\"PT0.0S\">\n"); } if (c->has_video) { avio_printf(out, "\t\t<AdaptationSet id=\"video\" segmentAlignment=\"true\" bitstreamSwitching=\"true\">\n"); for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; OutputStream *os = &c->streams[i]; if (s->streams[i]->codec->codec_type != AVMEDIA_TYPE_VIDEO) continue; avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"video/mp4\" codecs=\"%s\"%s width=\"%d\" height=\"%d\">\n", i, os->codec_str, os->bandwidth_str, st->codec->width, st->codec->height); output_segment_list(&c->streams[i], out, c); avio_printf(out, "\t\t\t</Representation>\n"); } avio_printf(out, "\t\t</AdaptationSet>\n"); } if (c->has_audio) { avio_printf(out, "\t\t<AdaptationSet id=\"audio\" segmentAlignment=\"true\" bitstreamSwitching=\"true\">\n"); for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; OutputStream *os = &c->streams[i]; if (s->streams[i]->codec->codec_type != AVMEDIA_TYPE_AUDIO) continue; avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"audio/mp4\" codecs=\"%s\"%s audioSamplingRate=\"%d\">\n", i, os->codec_str, os->bandwidth_str, st->codec->sample_rate); avio_printf(out, "\t\t\t\t<AudioChannelConfiguration schemeIdUri=\"urn:mpeg:dash:23003:3:audio_channel_configuration:2011\" value=\"%d\" />\n", st->codec->channels); output_segment_list(&c->streams[i], out, c); avio_printf(out, "\t\t\t</Representation>\n"); } avio_printf(out, "\t\t</AdaptationSet>\n"); } avio_printf(out, "\t</Period>\n"); avio_printf(out, "</MPD>\n"); avio_flush(out); avio_close(out); return ff_rename(temp_filename, s->filename, s); }