vod_status_t
hds_packager_build_manifest(
request_context_t* request_context,
hds_manifest_config_t* conf,
vod_str_t* base_url,
vod_str_t* manifest_id,
media_set_t* media_set,
bool_t drm_enabled,
vod_str_t* result)
{
hds_segment_durations_t* segment_durations;
adaptation_sets_t adaptation_sets;
adaptation_set_t* adaptation_set;
segmenter_conf_t* segmenter_conf = media_set->segmenter_conf;
media_sequence_t* cur_sequence;
media_track_t** tracks;
media_track_t** cur_track_ptr;
media_track_t* tracks_array[MEDIA_TYPE_COUNT];
media_track_t* track;
vod_str_t* drm_metadata;
uint32_t initial_muxed_tracks;
uint32_t muxed_tracks;
uint32_t media_count;
uint32_t bitrate;
uint32_t index;
uint32_t abst_atom_size;
uint32_t max_abst_atom_size = 0;
size_t result_size;
vod_status_t rc;
u_char* temp_buffer;
u_char* p;
// get the adaptations sets
rc = manifest_utils_get_adaptation_sets(
request_context,
media_set,
ADAPTATION_SETS_FLAG_FORCE_MUXED |
ADAPTATION_SETS_FLAG_SINGLE_LANG_TRACK |
ADAPTATION_SETS_FLAG_AVOID_AUDIO_ONLY,
&adaptation_sets);
if (rc != VOD_OK)
{
return rc;
}
// allocate the segment durations
media_count = adaptation_sets.first->count + adaptation_sets.total_count - 1;
segment_durations = vod_alloc(request_context->pool, sizeof(segment_durations[0]) * media_count);
if (segment_durations == NULL)
{
vod_log_debug0(VOD_LOG_DEBUG_LEVEL, request_context->log, 0,
"hds_packager_build_manifest: vod_alloc failed (1)");
return VOD_ALLOC_FAILED;
}
// calculate the result size
result_size =
sizeof(HDS_MANIFEST_HEADER) - 1 + manifest_id->len +
sizeof(HDS_MANIFEST_HEADER_BASE_URL) - 1 + base_url->len +
sizeof(HDS_MANIFEST_HEADER_LANG) - 1 + LANG_ISO639_2_LEN +
sizeof(HDS_MANIFEST_FOOTER);
switch (media_set->type)
{
case MEDIA_SET_VOD:
result_size +=
sizeof(HDS_MANIFEST_HEADER_VOD) - 1 + 2 * VOD_INT32_LEN +
(sizeof(HDS_BOOTSTRAP_VOD_HEADER) - 1 + VOD_INT32_LEN +
sizeof(HDS_BOOTSTRAP_VOD_FOOTER) - 1) * media_count;
break;
case MEDIA_SET_LIVE:
result_size +=
sizeof(HDS_MANIFEST_HEADER_LIVE) - 1 +
(sizeof(HDS_BOOTSTRAP_LIVE_PREFIX) - 1 + VOD_INT32_LEN +
conf->bootstrap_file_name_prefix.len +
MANIFEST_UTILS_TRACKS_SPEC_MAX_SIZE +
sizeof(HDS_BOOTSTRAP_LIVE_SUFFIX) - 1) * media_count;
break;
}
if (drm_enabled)
{
result_size +=
(sizeof(HDS_DRM_ADDITIONAL_HEADER_PREFIX) - 1 + VOD_INT32_LEN +
sizeof(HDS_DRM_ADDITIONAL_HEADER_SUFFIX) - 1) * media_count;
}
result_size +=
(vod_max(sizeof(HDS_MEDIA_HEADER_PREFIX_VIDEO) - 1 + 3 * VOD_INT32_LEN,
sizeof(HDS_MEDIA_HEADER_PREFIX_AUDIO_LANG) - 1 + VOD_INT32_LEN + LANG_ISO639_2_LEN) +
conf->fragment_file_name_prefix.len +
MANIFEST_UTILS_TRACKS_SPEC_MAX_SIZE + 1 + // 1 = -
sizeof(HDS_MEDIA_HEADER_SUFFIX_DRM) - 1 + 2 * VOD_INT32_LEN +
vod_base64_encoded_length(amf0_max_total_size) +
sizeof(HDS_MEDIA_FOOTER) - 1) * media_count;
initial_muxed_tracks = adaptation_sets.first->type == ADAPTATION_TYPE_MUXED ? MEDIA_TYPE_COUNT : 1;
muxed_tracks = initial_muxed_tracks;
index = 0;
for (adaptation_set = adaptation_sets.first; adaptation_set < adaptation_sets.last; adaptation_set++)
{
if (adaptation_set->type == ADAPTATION_TYPE_MUXED)
{
if (adaptation_set->first[MEDIA_TYPE_AUDIO] != NULL)
{
result_size += adaptation_set->first[MEDIA_TYPE_AUDIO]->media_info.label.len;
}
}
else
{
result_size += adaptation_set->first[0]->media_info.label.len;
}
for (cur_track_ptr = adaptation_set->first; cur_track_ptr < adaptation_set->last; cur_track_ptr += muxed_tracks)
{
if (cur_track_ptr[0] != NULL)
{
cur_sequence = cur_track_ptr[0]->file_info.source->sequence;
}
else
{
cur_sequence = cur_track_ptr[1]->file_info.source->sequence;
}
switch (media_set->type)
{
case MEDIA_SET_VOD:
rc = segmenter_conf->get_segment_durations(
request_context,
segmenter_conf,
media_set,
cur_sequence, // XXXXX change to work with tracks instead of sequence
MEDIA_TYPE_NONE,
&segment_durations[index].durations);
if (rc != VOD_OK)
{
return rc;
}
hds_scale_segment_durations(&segment_durations[index]);
abst_atom_size = hds_get_abst_atom_size(media_set, &segment_durations[index]);
if (abst_atom_size > max_abst_atom_size)
{
max_abst_atom_size = abst_atom_size;
}
result_size += vod_base64_encoded_length(abst_atom_size);
index++;
break;
}
if (drm_enabled)
{
drm_metadata = &((drm_info_t*)cur_sequence->drm_info)->pssh_array.first->data;
result_size += drm_metadata->len;
}
}
muxed_tracks = 1;
}
// allocate the buffers
result->data = vod_alloc(request_context->pool, result_size);
if (result->data == NULL)
{
vod_log_debug0(VOD_LOG_DEBUG_LEVEL, request_context->log, 0,
"hds_packager_build_manifest: vod_alloc failed (2)");
return VOD_ALLOC_FAILED;
}
temp_buffer = vod_alloc(request_context->pool, vod_max(amf0_max_total_size, max_abst_atom_size));
if (temp_buffer == NULL)
{
vod_log_debug0(VOD_LOG_DEBUG_LEVEL, request_context->log, 0,
"hds_packager_build_manifest: vod_alloc failed (3)");
return VOD_ALLOC_FAILED;
}
// print the manifest header
p = vod_sprintf(result->data, HDS_MANIFEST_HEADER, manifest_id);
if (base_url->len != 0)
{
p = vod_sprintf(p, HDS_MANIFEST_HEADER_BASE_URL, base_url);
}
switch (media_set->type)
{
case MEDIA_SET_VOD:
p = vod_sprintf(p, HDS_MANIFEST_HEADER_VOD,
(uint32_t)(media_set->timing.total_duration / 1000),
(uint32_t)(media_set->timing.total_duration % 1000));
break;
case MEDIA_SET_LIVE:
p = vod_copy(p, HDS_MANIFEST_HEADER_LIVE, sizeof(HDS_MANIFEST_HEADER_LIVE) - 1);
break;
}
if (adaptation_sets.total_count > 1)
{
if (adaptation_sets.first->type == ADAPTATION_TYPE_MUXED)
{
track = adaptation_sets.first->first[MEDIA_TYPE_AUDIO];
}
else
{
track = adaptation_sets.first->first[0];
}
p = vod_sprintf(p, HDS_MANIFEST_HEADER_LANG,
&track->media_info.label,
lang_get_iso639_2t_name(track->media_info.language));
}
// bootstrap tags
muxed_tracks = initial_muxed_tracks;
tracks_array[MEDIA_TYPE_SUBTITLE] = NULL;
index = 0;
for (adaptation_set = adaptation_sets.first; adaptation_set < adaptation_sets.last; adaptation_set++)
{
for (cur_track_ptr = adaptation_set->first; cur_track_ptr < adaptation_set->last; cur_track_ptr += muxed_tracks)
{
switch (media_set->type)
{
case MEDIA_SET_VOD:
p = vod_sprintf(p, HDS_BOOTSTRAP_VOD_HEADER, index);
p = hds_write_base64_abst_atom(p, temp_buffer, media_set, &segment_durations[index]);
p = vod_copy(p, HDS_BOOTSTRAP_VOD_FOOTER, sizeof(HDS_BOOTSTRAP_VOD_FOOTER) - 1);
break;
case MEDIA_SET_LIVE:
// get the tracks
if (muxed_tracks == 1)
{
if (cur_track_ptr[0]->media_info.media_type == MEDIA_TYPE_VIDEO)
{
tracks_array[MEDIA_TYPE_VIDEO] = cur_track_ptr[0];
tracks_array[MEDIA_TYPE_AUDIO] = NULL;
}
else
{
tracks_array[MEDIA_TYPE_VIDEO] = NULL;
tracks_array[MEDIA_TYPE_AUDIO] = cur_track_ptr[0];
}
tracks = tracks_array;
}
else
{
tracks = cur_track_ptr;
}
p = vod_sprintf(p, HDS_BOOTSTRAP_LIVE_PREFIX, index);
p = vod_copy(p, conf->bootstrap_file_name_prefix.data, conf->bootstrap_file_name_prefix.len);
p = manifest_utils_append_tracks_spec(p, tracks, MEDIA_TYPE_COUNT, media_set->has_multi_sequences);
p = vod_copy(p, HDS_BOOTSTRAP_LIVE_SUFFIX, sizeof(HDS_BOOTSTRAP_LIVE_SUFFIX) - 1);
break;
}
index++;
}
muxed_tracks = 1;
}
if (drm_enabled)
{
muxed_tracks = initial_muxed_tracks;
index = 0;
for (adaptation_set = adaptation_sets.first; adaptation_set < adaptation_sets.last; adaptation_set++)
{
for (cur_track_ptr = adaptation_set->first; cur_track_ptr < adaptation_set->last; cur_track_ptr += muxed_tracks)
{
if (cur_track_ptr[0] != NULL)
{
cur_sequence = cur_track_ptr[0]->file_info.source->sequence;
}
else
{
cur_sequence = cur_track_ptr[1]->file_info.source->sequence;
}
drm_metadata = &((drm_info_t*)cur_sequence->drm_info)->pssh_array.first->data;
p = vod_sprintf(p, HDS_DRM_ADDITIONAL_HEADER_PREFIX, index);
p = vod_copy(p, drm_metadata->data, drm_metadata->len);
p = vod_copy(p, HDS_DRM_ADDITIONAL_HEADER_SUFFIX, sizeof(HDS_DRM_ADDITIONAL_HEADER_SUFFIX) - 1);
index++;
}
muxed_tracks = 1;
}
}
// media tags
muxed_tracks = initial_muxed_tracks;
index = 0;
for (adaptation_set = adaptation_sets.first; adaptation_set < adaptation_sets.last; adaptation_set++)
{
for (cur_track_ptr = adaptation_set->first; cur_track_ptr < adaptation_set->last; cur_track_ptr += muxed_tracks)
{
// get the tracks
if (muxed_tracks == 1)
{
if (cur_track_ptr[0]->media_info.media_type == MEDIA_TYPE_VIDEO)
{
tracks_array[MEDIA_TYPE_VIDEO] = cur_track_ptr[0];
tracks_array[MEDIA_TYPE_AUDIO] = NULL;
}
else
{
tracks_array[MEDIA_TYPE_VIDEO] = NULL;
tracks_array[MEDIA_TYPE_AUDIO] = cur_track_ptr[0];
}
tracks = tracks_array;
}
else
{
tracks = cur_track_ptr;
}
if (tracks[MEDIA_TYPE_VIDEO] != NULL)
{
bitrate = tracks[MEDIA_TYPE_VIDEO]->media_info.bitrate;
if (tracks[MEDIA_TYPE_AUDIO] != NULL)
{
bitrate += tracks[MEDIA_TYPE_AUDIO]->media_info.bitrate;
}
p = vod_sprintf(p, HDS_MEDIA_HEADER_PREFIX_VIDEO,
bitrate / 1000,
(uint32_t)tracks[MEDIA_TYPE_VIDEO]->media_info.u.video.width,
(uint32_t)tracks[MEDIA_TYPE_VIDEO]->media_info.u.video.height);
}
else
{
bitrate = tracks[MEDIA_TYPE_AUDIO]->media_info.bitrate;
if (adaptation_sets.total_count > 1 && adaptation_set > adaptation_sets.first)
{
p = vod_sprintf(p, HDS_MEDIA_HEADER_PREFIX_AUDIO_LANG,
bitrate / 1000,
&tracks[MEDIA_TYPE_AUDIO]->media_info.label,
lang_get_iso639_2t_name(tracks[MEDIA_TYPE_AUDIO]->media_info.language));
}
else
{
p = vod_sprintf(p, HDS_MEDIA_HEADER_PREFIX_AUDIO,
bitrate / 1000);
}
}
// url
p = vod_copy(p, conf->fragment_file_name_prefix.data, conf->fragment_file_name_prefix.len);
p = manifest_utils_append_tracks_spec(p, tracks, MEDIA_TYPE_COUNT, media_set->has_multi_sequences);
*p++ = '-';
if (drm_enabled)
{
p = vod_sprintf(p, HDS_MEDIA_HEADER_SUFFIX_DRM, index, index);
}
else
{
p = vod_sprintf(p, HDS_MEDIA_HEADER_SUFFIX, index);
}
p = hds_amf0_write_base64_metadata(p, temp_buffer, media_set, tracks);
p = vod_copy(p, HDS_MEDIA_FOOTER, sizeof(HDS_MEDIA_FOOTER) - 1);
index++;
}
muxed_tracks = 1;
}
// manifest footer
p = vod_copy(p, HDS_MANIFEST_FOOTER, sizeof(HDS_MANIFEST_FOOTER) - 1);
result->len = p - result->data;
if (result->len > result_size)
{
vod_log_error(VOD_LOG_ERR, request_context->log, 0,
"hds_packager_build_manifest: result length %uz exceeded allocated length %uz",
result->len, result_size);
return VOD_UNEXPECTED;
}
vod_free(request_context->pool, temp_buffer);
return VOD_OK;
}
vod_status_t
dash_packager_build_mpd(
request_context_t* request_context,
dash_manifest_config_t* conf,
vod_str_t* base_url,
media_set_t* media_set,
dash_manifest_extensions_t* extensions,
vod_str_t* result)
{
segment_duration_item_t** cur_duration_items;
write_period_context_t context;
adaptation_set_t* adaptation_set;
segmenter_conf_t* segmenter_conf = media_set->segmenter_conf;
media_track_t* cur_track;
vod_tm_t publish_time_gmt;
vod_tm_t avail_time_gmt;
vod_tm_t cur_time_gmt;
time_t current_time;
size_t base_url_temp_buffer_size = 0;
size_t base_period_size;
size_t result_size = 0;
size_t urls_length;
uint32_t filtered_clip_offset;
uint32_t presentation_delay;
uint32_t min_update_period;
uint32_t window_size;
uint32_t period_count = media_set->use_discontinuity ? media_set->timing.total_count : 1;
uint32_t media_type;
uint32_t clip_index;
vod_status_t rc;
u_char* p = NULL;
// remove redundant tracks
dash_packager_remove_redundant_tracks(
conf->duplicate_bitrate_threshold,
media_set);
// get the adaptation sets
rc = manifest_utils_get_adaptation_sets(
request_context,
media_set,
ADAPTATION_SETS_FLAG_MULTI_CODEC,
&context.adaptation_sets);
if (rc != VOD_OK)
{
return rc;
}
// get segment durations and count for each media type
for (media_type = 0; media_type < MEDIA_TYPE_COUNT; media_type++)
{
if (media_set->track_count[media_type] == 0)
{
continue;
}
rc = segmenter_conf->get_segment_durations(
request_context,
segmenter_conf,
media_set,
NULL,
media_type,
&context.segment_durations[media_type]);
if (rc != VOD_OK)
{
return rc;
}
}
// get the base url
if (base_url->len != 0)
{
if (conf->use_base_url_tag)
{
result_size += sizeof(VOD_DASH_MANIFEST_BASEURL) - 1 + base_url->len;
context.base_url.data = NULL;
context.base_url.len = 0;
}
else
{
context.base_url = *base_url;
}
}
else
{
context.base_url.data = NULL;
context.base_url.len = 0;
}
// calculate the total size
urls_length = 2 * context.base_url.len + 2 * MAX_FILE_EXT_SIZE +
conf->init_file_name_prefix.len + MAX_CLIP_SPEC_LENGTH +
conf->fragment_file_name_prefix.len;
base_period_size =
sizeof(VOD_DASH_MANIFEST_PERIOD_HEADER_START_DURATION) - 1 + 5 * VOD_INT32_LEN +
// video adaptations
(sizeof(VOD_DASH_MANIFEST_ADAPTATION_HEADER_VIDEO) - 1 + 3 * VOD_INT32_LEN + VOD_DASH_MAX_FRAME_RATE_LEN +
sizeof(VOD_DASH_MANIFEST_ADAPTATION_FOOTER) - 1) * context.adaptation_sets.count[ADAPTATION_TYPE_VIDEO] +
// video representations
(sizeof(VOD_DASH_MANIFEST_REPRESENTATION_HEADER_VIDEO) - 1 + MAX_TRACK_SPEC_LENGTH + MAX_MIME_TYPE_SIZE + MAX_CODEC_NAME_SIZE + 3 * VOD_INT32_LEN + VOD_DASH_MAX_FRAME_RATE_LEN +
sizeof(VOD_DASH_MANIFEST_REPRESENTATION_FOOTER) - 1) * media_set->track_count[MEDIA_TYPE_VIDEO] +
// audio adaptations
(sizeof(VOD_DASH_MANIFEST_ADAPTATION_HEADER_AUDIO_LANG) - 1 + VOD_INT32_LEN + LANG_ISO639_3_LEN +
sizeof(VOD_DASH_MANIFEST_ADAPTATION_FOOTER) - 1) * context.adaptation_sets.count[ADAPTATION_TYPE_AUDIO] +
// audio representations
(sizeof(VOD_DASH_MANIFEST_REPRESENTATION_HEADER_AUDIO) - 1 + MAX_TRACK_SPEC_LENGTH + MAX_MIME_TYPE_SIZE + MAX_CODEC_NAME_SIZE + 2 * VOD_INT32_LEN +
sizeof(VOD_DASH_MANIFEST_REPRESENTATION_FOOTER) - 1) * media_set->track_count[MEDIA_TYPE_AUDIO] +
// subtitle adaptations
(sizeof(VOD_DASH_MANIFEST_ADAPTATION_SUBTITLE) - 1 + 2 * LANG_ISO639_3_LEN + VOD_INT32_LEN +
context.base_url.len + conf->subtitle_file_name_prefix.len + MAX_CLIP_SPEC_LENGTH + MAX_TRACK_SPEC_LENGTH) *
context.adaptation_sets.count[ADAPTATION_TYPE_SUBTITLE] +
sizeof(VOD_DASH_MANIFEST_PERIOD_FOOTER) - 1 +
extensions->representation.size +
extensions->adaptation_set.size;
switch (media_set->type)
{
case MEDIA_SET_VOD:
result_size += sizeof(VOD_DASH_MANIFEST_HEADER_VOD) - 1 + 3 * VOD_INT32_LEN + conf->profiles.len;
break;
case MEDIA_SET_LIVE:
result_size += sizeof(VOD_DASH_MANIFEST_HEADER_LIVE) - 1 + 8 * VOD_INT32_LEN + 18 * VOD_INT64_LEN + conf->profiles.len;
break;
}
result_size += base_period_size * period_count + sizeof(VOD_DASH_MANIFEST_FOOTER);
for (clip_index = 0; clip_index < period_count; clip_index++)
{
filtered_clip_offset = clip_index < media_set->clip_count ?
clip_index * media_set->total_track_count : 0;
for (adaptation_set = context.adaptation_sets.first;
adaptation_set < context.adaptation_sets.last;
adaptation_set++)
{
switch (adaptation_set->type)
{
case MEDIA_TYPE_AUDIO:
case MEDIA_TYPE_SUBTITLE:
cur_track = (*adaptation_set->first) + filtered_clip_offset;
result_size += cur_track->media_info.label.len;
break;
}
}
}
switch (conf->manifest_format)
{
case FORMAT_SEGMENT_TEMPLATE:
result_size +=
(sizeof(VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_FIXED) - 1 + VOD_INT32_LEN + VOD_INT64_LEN +
MAX_INDEX_SHIFT_LENGTH + urls_length) *
(context.adaptation_sets.count[MEDIA_TYPE_VIDEO] + context.adaptation_sets.count[MEDIA_TYPE_AUDIO]) *
period_count;
break;
case FORMAT_SEGMENT_TIMELINE:
for (media_type = 0; media_type < MEDIA_TYPE_SUBTITLE; media_type++)
{
if (context.adaptation_sets.count[media_type] == 0)
{
continue;
}
result_size +=
((sizeof(VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_HEADER) - 1 + VOD_INT32_LEN + urls_length +
sizeof(VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_FOOTER) - 1 +
sizeof(VOD_DASH_MANIFEST_SEGMENT_REPEAT_TIME) - 1 + VOD_INT64_LEN) * period_count +
(sizeof(VOD_DASH_MANIFEST_SEGMENT_REPEAT) - 1 + 2 * VOD_INT32_LEN) * context.segment_durations[media_type].item_count) *
context.adaptation_sets.count[media_type];
}
break;
case FORMAT_SEGMENT_LIST:
result_size += dash_packager_get_segment_list_total_size(
conf,
media_set,
context.segment_durations,
&context.base_url,
&base_url_temp_buffer_size);
break;
}
// allocate the buffer
result->data = vod_alloc(request_context->pool, result_size);
if (result->data == NULL)
{
vod_log_debug0(VOD_LOG_DEBUG_LEVEL, request_context->log, 0,
"dash_packager_build_mpd: vod_alloc failed (1)");
return VOD_ALLOC_FAILED;
}
context.base_url_temp_buffer = vod_alloc(request_context->pool, base_url_temp_buffer_size +
sizeof(context.cur_duration_items[0]) * context.adaptation_sets.total_count);
if (context.base_url_temp_buffer == NULL)
{
vod_log_debug0(VOD_LOG_DEBUG_LEVEL, request_context->log, 0,
"dash_packager_build_mpd: vod_alloc failed (2)");
return VOD_ALLOC_FAILED;
}
// initialize the duration items pointers to the beginning (according to the media type)
context.cur_duration_items = (void*)(context.base_url_temp_buffer + base_url_temp_buffer_size);
for (adaptation_set = context.adaptation_sets.first, cur_duration_items = context.cur_duration_items;
adaptation_set < context.adaptation_sets.last;
adaptation_set++, cur_duration_items++)
{
*cur_duration_items = context.segment_durations[adaptation_set->type].items;
}
// initialize the context
if (media_set->timing.segment_base_time != SEGMENT_BASE_TIME_RELATIVE)
{
context.segment_base_time = media_set->timing.segment_base_time;
}
else
{
context.segment_base_time = 0;
}
if (media_set->use_discontinuity)
{
context.clip_start_time = media_set->timing.original_first_time;
}
else
{
context.clip_start_time = context.segment_base_time;
}
context.clip_index = 0;
context.conf = conf;
context.media_set = media_set;
context.extensions = *extensions;
// print the manifest header
switch (media_set->type)
{
case MEDIA_SET_VOD:
p = vod_sprintf(result->data,
VOD_DASH_MANIFEST_HEADER_VOD,
(uint32_t)(media_set->timing.total_duration / 1000),
(uint32_t)(media_set->timing.total_duration % 1000),
(uint32_t)(segmenter_conf->max_segment_duration / 1000),
&conf->profiles);
break;
case MEDIA_SET_LIVE:
media_type = media_set->track_count[MEDIA_TYPE_VIDEO] != 0 ? MEDIA_TYPE_VIDEO : MEDIA_TYPE_AUDIO;
window_size = context.segment_durations[media_type].duration;
min_update_period = segmenter_conf->segment_duration / 2;
vod_gmtime(context.segment_base_time / 1000, &avail_time_gmt);
vod_gmtime(context.segment_durations[media_type].end_time / 1000, &publish_time_gmt);
current_time = vod_time(request_context);
vod_gmtime(current_time, &cur_time_gmt);
presentation_delay = dash_packager_get_presentation_delay(
(uint64_t)current_time * 1000,
&context.segment_durations[media_type]);
p = vod_sprintf(result->data,
VOD_DASH_MANIFEST_HEADER_LIVE,
(uint32_t)(min_update_period / 1000),
(uint32_t)(min_update_period % 1000),
avail_time_gmt.vod_tm_year, avail_time_gmt.vod_tm_mon, avail_time_gmt.vod_tm_mday,
avail_time_gmt.vod_tm_hour, avail_time_gmt.vod_tm_min, avail_time_gmt.vod_tm_sec,
publish_time_gmt.vod_tm_year, publish_time_gmt.vod_tm_mon, publish_time_gmt.vod_tm_mday,
publish_time_gmt.vod_tm_hour, publish_time_gmt.vod_tm_min, publish_time_gmt.vod_tm_sec,
(uint32_t)(window_size / 1000),
(uint32_t)(window_size % 1000),
(uint32_t)(segmenter_conf->max_segment_duration / 1000),
(uint32_t)(segmenter_conf->max_segment_duration % 1000),
(uint32_t)(presentation_delay / 1000),
(uint32_t)(presentation_delay % 1000),
&conf->profiles,
cur_time_gmt.vod_tm_year, cur_time_gmt.vod_tm_mon, cur_time_gmt.vod_tm_mday,
cur_time_gmt.vod_tm_hour, cur_time_gmt.vod_tm_min, cur_time_gmt.vod_tm_sec);
break;
}
if (conf->use_base_url_tag && base_url->len != 0)
{
p = vod_sprintf(p, VOD_DASH_MANIFEST_BASEURL, base_url);
}
for (;;)
{
p = dash_packager_write_mpd_period(
p,
&context);
context.clip_index++;
if (context.clip_index >= period_count)
{
break;
}
context.clip_start_time = media_set->timing.times[context.clip_index];
}
p = vod_copy(p, VOD_DASH_MANIFEST_FOOTER, sizeof(VOD_DASH_MANIFEST_FOOTER) - 1);
result->len = p - result->data;
if (result->len > result_size)
{
vod_log_error(VOD_LOG_ERR, request_context->log, 0,
"dash_packager_build_mpd: result length %uz exceeded allocated length %uz",
result->len, result_size);
return VOD_UNEXPECTED;
}
return VOD_OK;
}
