static void
dash_packager_get_track_spec(
vod_str_t* result,
media_set_t* media_set,
uint32_t sequence_index,
uint32_t track_index,
uint32_t media_type)
{
u_char* p = result->data;
if (media_set->has_multi_sequences && sequence_index != INVALID_SEQUENCE_INDEX)
{
p = vod_sprintf(p, "f%uD-", sequence_index + 1);
}
switch (media_type)
{
case MEDIA_TYPE_VIDEO:
p = vod_sprintf(p, "v%uD", track_index + 1);
p = vod_copy(p, "-x3", sizeof("-x3") - 1); // TODO: remove this after deployment
break;
case MEDIA_TYPE_AUDIO:
p = vod_sprintf(p, "a%uD", track_index + 1);
p = vod_copy(p, "-x3", sizeof("-x3") - 1); // TODO: remove this after deployment
break;
}
result->len = p - result->data;
}
static u_char*
mss_write_manifest_chunks_live(u_char* p, segment_durations_t* segment_durations)
{
segment_duration_item_t* cur_item;
segment_duration_item_t* last_item = segment_durations->items + segment_durations->item_count;
uint32_t repeat_count;
bool_t first_time = TRUE;
for (cur_item = segment_durations->items; cur_item < last_item; cur_item++)
{
repeat_count = cur_item->repeat_count;
// output the timestamp in the first chunk
if (first_time)
{
p = vod_sprintf(p, MSS_CHUNK_TAG_LIVE_FIRST,
mss_rescale_millis(segment_durations->start_time),
rescale_time(cur_item->duration, segment_durations->timescale, MSS_TIMESCALE));
repeat_count--;
first_time = FALSE;
}
// output only the duration in subsequent chunks
for (; repeat_count > 0; repeat_count--)
{
p = vod_sprintf(p, MSS_CHUNK_TAG_LIVE, rescale_time(cur_item->duration, segment_durations->timescale, MSS_TIMESCALE));
}
}
return p;
}
static void
dash_packager_get_track_spec(
vod_str_t* result,
media_set_t* media_set,
uint32_t clip_index,
uint32_t sequence_index,
uint32_t track_index,
int media_type_char)
{
u_char* p = result->data;
if (media_set->use_discontinuity)
{
p = vod_sprintf(p, "c%uD-", clip_index + 1);
}
if (media_set->has_multi_sequences && sequence_index != INVALID_SEQUENCE_INDEX)
{
p = vod_sprintf(p, "f%uD-", sequence_index + 1);
}
p = vod_sprintf(p, "%c%uD", media_type_char, track_index + 1);
result->len = p - result->data;
}
static u_char*
dash_packager_write_segment_list(
u_char* p,
write_period_context_t* context,
uint32_t start_number,
u_char* clip_spec,
media_sequence_t* cur_sequence,
media_track_t* cur_track,
uint32_t segment_count)
{
dash_manifest_config_t* conf = context->conf;
media_set_t* media_set = context->media_set;
vod_str_t track_spec;
vod_str_t cur_base_url;
u_char track_spec_buffer[MAX_TRACK_SPEC_LENGTH];
uint32_t sequence_index = cur_sequence->index;
uint32_t i;
track_spec.data = track_spec_buffer;
// build the base url
dash_packager_get_segment_list_base_url(context, cur_track, &cur_base_url, &sequence_index);
// get the track specification
dash_packager_get_track_spec(
&track_spec,
media_set,
sequence_index,
cur_track->index,
cur_track->media_info.media_type);
// write the header
p = vod_sprintf(p,
VOD_DASH_MANIFEST_SEGMENT_LIST_HEADER,
media_set->segmenter_conf->segment_duration,
context->clip_index == 0 ? media_set->initial_segment_clip_relative_index + 1 : 1,
&cur_base_url,
&conf->init_file_name_prefix,
clip_spec,
&track_spec,
&dash_codecs[cur_track->media_info.codec_id].init_file_ext);
// write the urls
for (i = 0; i < segment_count; i++)
{
p = vod_sprintf(p,
VOD_DASH_MANIFEST_SEGMENT_URL,
&cur_base_url,
&conf->fragment_file_name_prefix,
start_number + i + 1,
&track_spec,
&dash_codecs[cur_track->media_info.codec_id].frag_file_ext);
}
p = vod_copy(p, VOD_DASH_MANIFEST_SEGMENT_LIST_FOOTER, sizeof(VOD_DASH_MANIFEST_SEGMENT_LIST_FOOTER) - 1);
return p;
}
u_char*
manifest_utils_append_tracks_spec(
u_char* p,
media_track_t** tracks,
uint32_t track_count,
bool_t write_sequence_index)
{
media_sequence_t* cur_sequence;
media_track_t** last_track_ptr = tracks + track_count;
media_track_t** cur_track_ptr;
media_track_t* cur_track;
uint32_t last_sequence_index;
u_char media_type_letter[] = { 'v', 'a' }; // must match MEDIA_TYPE_xxx in order
last_sequence_index = INVALID_SEQUENCE_INDEX;
for (cur_track_ptr = tracks; cur_track_ptr < last_track_ptr; cur_track_ptr++)
{
cur_track = *cur_track_ptr;
if (cur_track == NULL)
{
continue;
}
if (write_sequence_index)
{
cur_sequence = cur_track->file_info.source->sequence;
if (cur_sequence->index != last_sequence_index)
{
last_sequence_index = cur_sequence->index;
if (cur_sequence->id.len != 0 && cur_sequence->id.len < VOD_INT32_LEN)
{
p = vod_sprintf(p, "-s%V", &cur_sequence->id);
}
else
{
p = vod_sprintf(p, "-f%uD", last_sequence_index + 1);
}
}
}
if (cur_track->media_info.media_type <= MEDIA_TYPE_AUDIO)
{
*p++ = '-';
*p++ = media_type_letter[cur_track->media_info.media_type];
p = vod_sprintf(p, "%uD", cur_track->index + 1);
}
}
return p;
}
static u_char*
dash_packager_write_segment_template(
u_char* p,
dash_manifest_config_t* conf,
segmenter_conf_t* segmenter_conf,
vod_str_t* base_url,
segment_durations_t* segment_durations)
{
segment_duration_item_t* cur_item;
segment_duration_item_t* last_item = segment_durations->items + segment_durations->item_count;
uint32_t duration;
if (!conf->segment_timeline)
{
return vod_sprintf(p,
VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_FIXED,
base_url,
&conf->fragment_file_name_prefix,
base_url,
&conf->init_file_name_prefix,
segmenter_conf->segment_duration);
}
p = vod_sprintf(p,
VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_HEADER,
base_url,
&conf->fragment_file_name_prefix,
base_url,
&conf->init_file_name_prefix);
for (cur_item = segment_durations->items; cur_item < last_item; cur_item++)
{
duration = (uint32_t)rescale_time(cur_item->duration, segment_durations->timescale, 1000);
if (cur_item->repeat_count == 1)
{
p = vod_sprintf(p, VOD_DASH_MANIFEST_SEGMENT, duration);
}
else if (cur_item->repeat_count > 1)
{
p = vod_sprintf(p, VOD_DASH_MANIFEST_SEGMENT_REPEAT, duration, cur_item->repeat_count - 1);
}
}
p = vod_copy(p, VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_FOOTER, sizeof(VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_FOOTER) - 1);
return p;
}
static u_char*
dash_packager_write_segment_timeline(
u_char* p,
dash_manifest_config_t* conf,
segment_durations_t* segment_durations,
segment_duration_item_t** cur_item_ptr,
vod_str_t* base_url)
{
segment_duration_item_t* cur_item;
segment_duration_item_t* last_item = segment_durations->items + segment_durations->item_count;
uint32_t duration;
bool_t first_time = TRUE;
p = vod_sprintf(p,
VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_HEADER,
base_url,
&conf->fragment_file_name_prefix,
base_url,
&conf->init_file_name_prefix);
for (cur_item = *cur_item_ptr; cur_item < last_item; cur_item++)
{
// stop on discontinuity, will get called again for the next period
if (cur_item->discontinuity && !first_time)
{
break;
}
first_time = FALSE;
duration = (uint32_t)rescale_time(cur_item->duration, segment_durations->timescale, 1000);
if (cur_item->repeat_count == 1)
{
p = vod_sprintf(p, VOD_DASH_MANIFEST_SEGMENT, duration);
}
else if (cur_item->repeat_count > 1)
{
p = vod_sprintf(p, VOD_DASH_MANIFEST_SEGMENT_REPEAT, duration, cur_item->repeat_count - 1);
}
}
*cur_item_ptr = cur_item;
p = vod_copy(p, VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_FOOTER, sizeof(VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_FOOTER) - 1);
return p;
}
static u_char*
m3u8_builder_format_double(u_char* p, uint32_t n, uint32_t scale)
{
int cur_digit;
int int_n = n / scale;
int fraction = n % scale;
p = vod_sprintf(p, "%d", int_n);
if (scale == 1)
{
return p;
}
*p++ = '.';
for (;;)
{
scale /= 10;
if (scale == 0)
{
break;
}
cur_digit = fraction / scale;
*p++ = cur_digit + '0';
fraction -= cur_digit * scale;
}
return p;
}
static vod_status_t
codec_config_get_avc_codec_name(request_context_t* request_context, media_info_t* media_info)
{
avcc_config_t* config;
u_char* p;
if (media_info->extra_data_size < sizeof(avcc_config_t))
{
vod_log_error(VOD_LOG_ERR, request_context->log, 0,
"codec_config_get_avc_codec_name: extra data too small");
return VOD_BAD_DATA;
}
config = (avcc_config_t*)media_info->extra_data;
p = vod_sprintf(media_info->codec_name.data, "%*s.%02uxD%02uxD%02uxD",
(size_t)sizeof(uint32_t),
&media_info->format,
(uint32_t)config->profile,
(uint32_t)config->compatibility,
(uint32_t)config->level);
media_info->codec_name.len = p - media_info->codec_name.data;
return VOD_OK;
}
static u_char*
dash_packager_write_segment_template(
u_char* p,
dash_manifest_config_t* conf,
uint32_t start_number,
uint32_t clip_relative_index,
u_char* clip_spec,
media_set_t* media_set,
media_track_t* reference_track,
vod_str_t* base_url)
{
u_char index_shift_str[MAX_INDEX_SHIFT_LENGTH];
index_shift_str[0] = '\0';
if (media_set->use_discontinuity)
{
if (start_number > clip_relative_index)
{
vod_sprintf(index_shift_str, "i%uD-%Z", start_number - clip_relative_index);
start_number = clip_relative_index;
}
}
else
{
start_number = 0;
}
// Note: SegmentTemplate is currently printed in the adaptation set level, so it is not possible
// to mix mp4 and webm representations for the same media type
p = vod_sprintf(p,
VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_FIXED,
base_url,
&conf->fragment_file_name_prefix,
index_shift_str,
&dash_codecs[reference_track->media_info.codec_id].frag_file_ext,
base_url,
&conf->init_file_name_prefix,
clip_spec,
&dash_codecs[reference_track->media_info.codec_id].init_file_ext,
media_set->segmenter_conf->segment_duration,
start_number + 1);
return p;
}
u_char*
mp4_encrypt_write_guid(u_char* p, u_char* guid)
{
p = vod_sprintf(p, "%02xd%02xd%02xd%02xd-%02xd%02xd-%02xd%02xd-%02xd%02xd-%02xd%02xd%02xd%02xd%02xd%02xd",
guid[0], guid[1], guid[2], guid[3],
guid[4], guid[5],
guid[6], guid[7],
guid[8], guid[9], guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
return p;
}
static void
dash_packager_write_frame_rate(
uint32_t duration,
uint32_t timescale,
vod_str_t* result)
{
uint32_t gcd = dash_packager_find_gcd(duration, timescale);
u_char* p = result->data;
duration /= gcd;
timescale /= gcd;
if (duration == 1)
{
result->len = vod_sprintf(p, "%uD", timescale) - p;
}
else
{
result->len = vod_sprintf(p, "%uD/%uD", timescale, duration) - p;
}
}
static void
m3u8_builder_append_iframe_string(void* context, uint32_t segment_index, uint32_t frame_duration, uint32_t frame_start, uint32_t frame_size)
{
write_segment_context_t* ctx = (write_segment_context_t*)context;
ctx->p = m3u8_builder_append_extinf_tag(ctx->p, frame_duration, 1000);
ctx->p = vod_sprintf(ctx->p, byte_range_tag_format, frame_size, frame_start);
ctx->p = m3u8_builder_append_segment_name(
ctx->p,
ctx->base_url,
ctx->segment_file_name_prefix,
segment_index,
&ctx->tracks_spec);
}
static vod_status_t
codec_config_get_hevc_codec_name(request_context_t* request_context, media_info_t* media_info)
{
vod_status_t rc;
hevc_config_t cfg;
u_char* p;
uint8_t c;
char profile_space[2] = { 0, 0 };
int shift;
rc = codec_config_hevc_config_parse(request_context, media_info->extra_data, media_info->extra_data_size, &cfg, NULL);
if (rc != VOD_OK)
{
return rc;
}
if (cfg.profile_space > 0)
{
profile_space[0] = 'A' + (cfg.profile_space - 1);
}
c = cfg.progressive_source_flag << 7;
c |= cfg.interlaced_source_flag << 6;
c |= cfg.non_packed_constraint_flag << 5;
c |= cfg.frame_only_constraint_flag << 4;
c |= (cfg.constraint_indicator_flags >> 40);
p = vod_sprintf(media_info->codec_name.data, "%*s.%s%D.%xD.%c%D.%02xD",
(size_t)sizeof(uint32_t),
&media_info->format,
profile_space,
(uint32_t)cfg.profile_idc,
codec_config_flip_bits_32(cfg.general_profile_compatibility_flags),
(int)(cfg.tier_flag ? 'H' : 'L'),
(uint32_t)cfg.level_idc,
(uint32_t)c);
for (shift = 32; shift >= 0; shift -= 8)
{
if ((cfg.constraint_indicator_flags & (((uint64_t)1 << (shift + 8)) - 1)) == 0)
{
break;
}
p = vod_sprintf(p, ".%02xD", (uint32_t)((cfg.constraint_indicator_flags >> shift) & 0xFF));
}
*p = '\0';
media_info->codec_name.len = p - media_info->codec_name.data;
return VOD_OK;
}
u_char*
manifest_utils_append_tracks_spec(u_char* p, media_track_t** tracks, bool_t write_sequence_index)
{
media_sequence_t* video_sequence = NULL;
media_sequence_t* cur_sequence;
if (tracks[MEDIA_TYPE_VIDEO] != NULL)
{
if (write_sequence_index)
{
video_sequence = tracks[MEDIA_TYPE_VIDEO]->file_info.source->sequence;
p = vod_sprintf(p, "-f%uD", video_sequence->index + 1);
}
p = vod_sprintf(p, "-v%uD", tracks[MEDIA_TYPE_VIDEO]->index + 1);
}
if (tracks[MEDIA_TYPE_AUDIO] != NULL)
{
if (write_sequence_index)
{
cur_sequence = tracks[MEDIA_TYPE_AUDIO]->file_info.source->sequence;
if (video_sequence == NULL || cur_sequence->index != video_sequence->index)
{
p = vod_sprintf(p, "-f%uD", cur_sequence->index + 1);
}
}
p = vod_sprintf(p, "-a%uD", tracks[MEDIA_TYPE_AUDIO]->index + 1);
}
if (tracks[MEDIA_TYPE_SUBTITLE] != NULL && write_sequence_index)
{
cur_sequence = tracks[MEDIA_TYPE_SUBTITLE]->file_info.source->sequence;
p = vod_sprintf(p, "-f%uD", cur_sequence->index + 1);
}
return p;
}
static u_char*
m3u8_builder_append_segment_name(
u_char* p,
vod_str_t* base_url,
vod_str_t* segment_file_name_prefix,
uint32_t segment_index,
vod_str_t* tracks_spec)
{
p = vod_copy(p, base_url->data, base_url->len);
p = vod_copy(p, segment_file_name_prefix->data, segment_file_name_prefix->len);
*p++ = '-';
p = vod_sprintf(p, "%uD", segment_index + 1);
p = vod_copy(p, tracks_spec->data, tracks_spec->len);
p = vod_copy(p, ".ts\n", sizeof(".ts\n") - 1);
return p;
}
static void
dash_packager_get_clip_spec(
u_char* result,
media_set_t* media_set,
uint32_t clip_index)
{
if (media_set->use_discontinuity &&
media_set->initial_clip_index != INVALID_CLIP_INDEX)
{
vod_sprintf(result, "c%uD-%Z", media_set->initial_clip_index + clip_index + 1);
}
else
{
result[0] = '\0';
}
}
static u_char*
dash_packager_write_segment_template(
u_char* p,
dash_manifest_config_t* conf,
segmenter_conf_t* segmenter_conf,
vod_str_t* base_url)
{
p = vod_sprintf(p,
VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_FIXED,
base_url,
&conf->fragment_file_name_prefix,
base_url,
&conf->init_file_name_prefix,
segmenter_conf->segment_duration);
return p;
}
static u_char*
manifest_utils_write_bitmask(u_char* p, uint32_t bitmask, u_char letter)
{
uint32_t i;
for (i = 0; i < 32; i++)
{
if ((bitmask & (1 << i)) == 0)
{
continue;
}
*p++ = '-';
*p++ = letter;
p = vod_sprintf(p, "%uD", i + 1);
}
return p;
}
static u_char*
mss_write_manifest_chunks(u_char* p, segment_durations_t* segment_durations)
{
segment_duration_item_t* cur_item;
segment_duration_item_t* last_item = segment_durations->items + segment_durations->item_count;
uint32_t last_segment_index;
uint32_t segment_index;
for (cur_item = segment_durations->items; cur_item < last_item; cur_item++)
{
segment_index = cur_item->segment_index;
last_segment_index = segment_index + cur_item->repeat_count;
for (; segment_index < last_segment_index; segment_index++)
{
p = vod_sprintf(p, MSS_CHUNK_TAG, segment_index, rescale_time(cur_item->duration, segment_durations->timescale, MSS_TIMESCALE));
}
}
return p;
}
static u_char*
rate_filter_append_desc(u_char* p, media_clip_t* clip)
{
media_clip_rate_filter_t* filter = vod_container_of(clip, media_clip_rate_filter_t, base);
uint32_t denom;
uint32_t nom;
// normalize the fraction to 100 denom
nom = filter->rate.nom;
denom = filter->rate.denom;
while (denom < 100)
{
nom *= 10;
denom *= 10;
}
return vod_sprintf(
p,
RATE_FILTER_DESC_PATTERN,
clip->sources[0]->id,
nom / 100,
nom % 100,
clip->id);
}
static vod_status_t
hls_muxer_init_id3_stream(
hls_muxer_state_t* state,
hls_muxer_conf_t* conf,
mpegts_encoder_init_streams_state_t* init_streams_state)
{
hls_muxer_stream_state_t* cur_stream;
hls_muxer_stream_state_t* reference_stream;
id3_context_t* context;
vod_status_t rc;
cur_stream = state->last_stream;
// init the mpeg ts encoder
rc = mpegts_encoder_init(
&cur_stream->mpegts_encoder_state,
init_streams_state,
NULL,
&state->queue,
conf->interleave_frames,
conf->align_frames);
if (rc != VOD_OK)
{
return rc;
}
if (!conf->output_id3_timestamps)
{
return VOD_OK;
}
// get the stream that has the first frame
rc = hls_muxer_choose_stream(state, &reference_stream);
if (rc != VOD_OK)
{
if (rc == VOD_NOT_FOUND)
{
return VOD_OK;
}
return rc;
}
// allocate the context
context = vod_alloc(state->request_context->pool, sizeof(*context));
if (context == NULL)
{
vod_log_debug0(VOD_LOG_DEBUG_LEVEL, state->request_context->log, 0,
"hls_muxer_init_id3_stream: vod_alloc failed");
return VOD_ALLOC_FAILED;
}
// init the memory frames source
rc = frames_source_memory_init(state->request_context, &cur_stream->cur_frame_part.frames_source_context);
if (rc != VOD_OK)
{
return rc;
}
cur_stream->cur_frame_part.frames_source = &frames_source_memory;
// base initialization
cur_stream->media_type = MEDIA_TYPE_NONE;
cur_stream->segment_limit = ULLONG_MAX;
cur_stream->buffer_state = NULL;
// init the id3 encoder
id3_encoder_init(&context->encoder, &mpegts_encoder, &cur_stream->mpegts_encoder_state);
cur_stream->top_filter = &id3_encoder;
cur_stream->top_filter_context = &context->encoder;
// copy the time stamps
cur_stream->first_frame_time_offset = reference_stream->first_frame_time_offset;
cur_stream->next_frame_time_offset = reference_stream->next_frame_time_offset;
cur_stream->clip_from_frame_offset = reference_stream->clip_from_frame_offset;
// init the frame part
cur_stream->cur_frame = &context->frame;
cur_stream->first_frame_part = &cur_stream->cur_frame_part;
cur_stream->cur_frame_part.next = NULL;
cur_stream->cur_frame_part.first_frame = &context->frame;
cur_stream->cur_frame_part.last_frame = &context->frame + 1;
cur_stream->source = NULL;
// init the frame
context->frame.size = vod_sprintf(context->data, ID3_TEXT_JSON_FORMAT,
hls_rescale_to_millis(cur_stream->first_frame_time_offset)) - context->data;
context->frame.duration = 0;
context->frame.key_frame = 1;
context->frame.pts_delay = 0;
context->frame.offset = (uintptr_t)&context->data;
state->last_stream++;
return VOD_OK;
}
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
hds_packager_build_manifest(
request_context_t* request_context,
hds_manifest_config_t* conf,
vod_str_t* manifest_id,
segmenter_conf_t* segmenter_conf,
media_set_t* media_set,
vod_str_t* result)
{
media_track_t** cur_sequence_tracks;
media_sequence_t* cur_sequence;
media_track_t* track;
segment_durations_t* segment_durations;
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;
segment_durations = vod_alloc(
request_context->pool,
media_set->sequence_count * sizeof(*segment_durations));
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 + 2 * VOD_INT32_LEN + manifest_id->len +
sizeof(HDS_MANIFEST_FOOTER);
index = 0;
for (cur_sequence = media_set->sequences; cur_sequence < media_set->sequences_end; cur_sequence++)
{
cur_sequence_tracks = cur_sequence->filtered_clips[0].longest_track;
rc = segmenter_conf->get_segment_durations(
request_context,
segmenter_conf,
media_set,
cur_sequence,
MEDIA_TYPE_NONE,
&segment_durations[index]);
if (rc != VOD_OK)
{
return rc;
}
abst_atom_size = ABST_BASE_ATOM_SIZE + (segment_durations[index].item_count + 1) * sizeof(afrt_entry_t);
if (abst_atom_size > max_abst_atom_size)
{
max_abst_atom_size = abst_atom_size;
}
result_size +=
sizeof(HDS_BOOTSTRAP_HEADER) - 1 + VOD_INT32_LEN +
vod_base64_encoded_length(abst_atom_size) +
sizeof(HDS_BOOTSTRAP_FOOTER) - 1;
result_size +=
sizeof(HDS_MEDIA_HEADER_PREFIX_VIDEO) - 1 + 3 * VOD_INT32_LEN +
conf->fragment_file_name_prefix.len + sizeof("-f-v-a-") - 1 + 3 * VOD_INT32_LEN +
sizeof(HDS_MEDIA_HEADER_SUFFIX) - 1 + VOD_INT32_LEN +
vod_base64_encoded_length(amf0_max_total_size) +
sizeof(HDS_MEDIA_FOOTER) - 1;
index++;
}
// 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 (1)");
return VOD_ALLOC_FAILED;
}
// print the manifest header
p = vod_sprintf(result->data, HDS_MANIFEST_HEADER,
manifest_id,
(uint32_t)(media_set->total_duration / 1000),
(uint32_t)(media_set->total_duration % 1000));
// bootstrap tags
index = 0;
for (cur_sequence = media_set->sequences; cur_sequence < media_set->sequences_end; cur_sequence++)
{
cur_sequence_tracks = cur_sequence->filtered_clips[0].longest_track;
p = vod_sprintf(p, HDS_BOOTSTRAP_HEADER, index);
p = hds_write_base64_abst_atom(p, temp_buffer, &segment_durations[index]);
p = vod_copy(p, HDS_BOOTSTRAP_FOOTER, sizeof(HDS_BOOTSTRAP_FOOTER) - 1);
index++;
}
// media tags
index = 0;
for (cur_sequence = media_set->sequences; cur_sequence < media_set->sequences_end; cur_sequence++)
{
cur_sequence_tracks = cur_sequence->filtered_clips[0].longest_track;
if (cur_sequence_tracks[MEDIA_TYPE_VIDEO] != NULL)
{
track = cur_sequence_tracks[MEDIA_TYPE_VIDEO];
bitrate = track->media_info.bitrate;
if (cur_sequence_tracks[MEDIA_TYPE_AUDIO] != NULL)
{
bitrate += cur_sequence_tracks[MEDIA_TYPE_AUDIO]->media_info.bitrate;
}
p = vod_sprintf(p, HDS_MEDIA_HEADER_PREFIX_VIDEO,
bitrate / 1000,
(uint32_t)track->media_info.u.video.width,
(uint32_t)track->media_info.u.video.height);
}
else
{
track = cur_sequence_tracks[MEDIA_TYPE_AUDIO];
p = vod_sprintf(p, HDS_MEDIA_HEADER_PREFIX_AUDIO,
track->media_info.bitrate / 1000);
}
// url
p = vod_copy(p, conf->fragment_file_name_prefix.data, conf->fragment_file_name_prefix.len);
if (media_set->has_multi_sequences)
{
p = vod_sprintf(p, "-f%uD", cur_sequence->index + 1);
}
if (cur_sequence_tracks[MEDIA_TYPE_VIDEO] != NULL)
{
p = vod_sprintf(p, "-v%uD", cur_sequence_tracks[MEDIA_TYPE_VIDEO]->index + 1);
}
if (cur_sequence_tracks[MEDIA_TYPE_AUDIO] != NULL)
{
p = vod_sprintf(p, "-a%uD", cur_sequence_tracks[MEDIA_TYPE_AUDIO]->index + 1);
}
*p++ = '-';
p = vod_sprintf(p, HDS_MEDIA_HEADER_SUFFIX, index++);
p = hds_amf0_write_base64_metadata(p, temp_buffer, cur_sequence_tracks);
p = vod_copy(p, HDS_MEDIA_FOOTER, sizeof(HDS_MEDIA_FOOTER) - 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
mss_packager_build_manifest(
request_context_t* request_context,
segmenter_conf_t* segmenter_conf,
mpeg_metadata_t* mpeg_metadata,
size_t extra_tags_size,
mss_write_tags_callback_t write_extra_tags,
void* extra_tags_writer_context,
vod_str_t* result)
{
mpeg_stream_metadata_t* cur_stream;
segment_durations_t segment_durations[MEDIA_TYPE_COUNT];
uint64_t duration_100ns;
uint32_t media_type;
uint32_t stream_index;
uint32_t bitrate;
vod_status_t rc;
size_t result_size;
u_char* p;
// calculate the result size
result_size =
sizeof(MSS_MANIFEST_HEADER) - 1 + VOD_INT64_LEN +
extra_tags_size +
sizeof(MSS_MANIFEST_FOOTER);
for (media_type = 0; media_type < MEDIA_TYPE_COUNT; media_type++)
{
if (mpeg_metadata->longest_stream[media_type] == NULL)
{
continue;
}
rc = segmenter_conf->get_segment_durations(
request_context,
segmenter_conf,
&mpeg_metadata->longest_stream[media_type],
1,
&segment_durations[media_type]);
if (rc != VOD_OK)
{
return rc;
}
result_size +=
sizeof(MSS_STREAM_INDEX_HEADER) - 1 + 2 * sizeof(MSS_STREAM_TYPE_VIDEO) + 2 * VOD_INT32_LEN +
sizeof(MSS_STREAM_INDEX_FOOTER);
result_size += segment_durations[media_type].segment_count * (sizeof(MSS_CHUNK_TAG) + VOD_INT32_LEN + VOD_INT64_LEN);
}
for (cur_stream = mpeg_metadata->first_stream; cur_stream < mpeg_metadata->last_stream; cur_stream++)
{
switch (cur_stream->media_info.media_type)
{
case MEDIA_TYPE_VIDEO:
result_size +=
sizeof(MSS_VIDEO_QUALITY_LEVEL_HEADER) - 1 + 4 * VOD_INT32_LEN + cur_stream->media_info.extra_data_size * 2 +
sizeof(MSS_QUALITY_LEVEL_FOOTER) - 1;
break;
case MEDIA_TYPE_AUDIO:
result_size +=
sizeof(MSS_AUDIO_QUALITY_LEVEL_HEADER) - 1 + 6 * VOD_INT32_LEN + cur_stream->media_info.extra_data_size * 2 +
sizeof(MSS_QUALITY_LEVEL_FOOTER) - 1;
break;
}
}
// allocate the result
result->data = vod_alloc(request_context->pool, result_size);
if (result->data == NULL)
{
vod_log_debug0(VOD_LOG_DEBUG_LEVEL, request_context->log, 0,
"mss_packager_build_manifest: vod_alloc failed");
return VOD_ALLOC_FAILED;
}
duration_100ns = rescale_time(mpeg_metadata->duration, mpeg_metadata->timescale, MSS_TIMESCALE);
p = vod_sprintf(result->data, MSS_MANIFEST_HEADER, duration_100ns);
if (mpeg_metadata->longest_stream[MEDIA_TYPE_VIDEO] != NULL)
{
p = vod_sprintf(p,
MSS_STREAM_INDEX_HEADER,
MSS_STREAM_TYPE_VIDEO,
mpeg_metadata->stream_count[MEDIA_TYPE_VIDEO],
segment_durations[MEDIA_TYPE_VIDEO].segment_count,
MSS_STREAM_TYPE_VIDEO);
stream_index = 0;
for (cur_stream = mpeg_metadata->first_stream; cur_stream < mpeg_metadata->last_stream; cur_stream++)
{
if (cur_stream->media_info.media_type != MEDIA_TYPE_VIDEO)
{
continue;
}
bitrate = cur_stream->media_info.bitrate;
bitrate = mss_encode_indexes(bitrate, cur_stream->file_info.file_index, cur_stream->track_index);
p = vod_sprintf(p, MSS_VIDEO_QUALITY_LEVEL_HEADER,
stream_index++,
bitrate,
(uint32_t)cur_stream->media_info.u.video.width,
(uint32_t)cur_stream->media_info.u.video.height);
p = mss_append_hex_string(p, cur_stream->media_info.extra_data, cur_stream->media_info.extra_data_size);
p = vod_copy(p, MSS_QUALITY_LEVEL_FOOTER, sizeof(MSS_QUALITY_LEVEL_FOOTER) - 1);
}
p = mss_write_manifest_chunks(p, &segment_durations[MEDIA_TYPE_VIDEO]);
p = vod_copy(p, MSS_STREAM_INDEX_FOOTER, sizeof(MSS_STREAM_INDEX_FOOTER) - 1);
}
if (mpeg_metadata->longest_stream[MEDIA_TYPE_AUDIO] != NULL)
{
p = vod_sprintf(p, MSS_STREAM_INDEX_HEADER,
MSS_STREAM_TYPE_AUDIO,
mpeg_metadata->stream_count[MEDIA_TYPE_AUDIO],
segment_durations[MEDIA_TYPE_AUDIO].segment_count,
MSS_STREAM_TYPE_AUDIO);
stream_index = 0;
for (cur_stream = mpeg_metadata->first_stream; cur_stream < mpeg_metadata->last_stream; cur_stream++)
{
if (cur_stream->media_info.media_type != MEDIA_TYPE_AUDIO)
{
continue;
}
bitrate = cur_stream->media_info.bitrate;
bitrate = mss_encode_indexes(bitrate, cur_stream->file_info.file_index, cur_stream->track_index);
p = vod_sprintf(p, MSS_AUDIO_QUALITY_LEVEL_HEADER,
stream_index++,
bitrate,
cur_stream->media_info.u.audio.sample_rate,
(uint32_t)cur_stream->media_info.u.audio.channels,
(uint32_t)cur_stream->media_info.u.audio.bits_per_sample,
(uint32_t)cur_stream->media_info.u.audio.packet_size);
p = mss_append_hex_string(p, cur_stream->media_info.extra_data, cur_stream->media_info.extra_data_size);
p = vod_copy(p, MSS_QUALITY_LEVEL_FOOTER, sizeof(MSS_QUALITY_LEVEL_FOOTER) - 1);
}
p = mss_write_manifest_chunks(p, &segment_durations[MEDIA_TYPE_AUDIO]);
p = vod_copy(p, MSS_STREAM_INDEX_FOOTER, sizeof(MSS_STREAM_INDEX_FOOTER) - 1);
}
if (write_extra_tags != NULL)
{
p = write_extra_tags(extra_tags_writer_context, p, mpeg_metadata);
}
p = vod_copy(p, MSS_MANIFEST_FOOTER, sizeof(MSS_MANIFEST_FOOTER) - 1);
result->len = p - result->data;
if (result->len > result_size)
{
vod_log_error(VOD_LOG_ERR, request_context->log, 0,
"mss_packager_build_manifest: result length %uz exceeded allocated length %uz",
result->len, result_size);
return VOD_UNEXPECTED;
}
return VOD_OK;
}
static u_char*
dash_packager_write_segment_list(
u_char* p,
dash_manifest_config_t* conf,
media_set_t* media_set,
segmenter_conf_t* segmenter_conf,
vod_str_t* base_url,
u_char* base_url_temp_buffer,
uint32_t clip_index,
media_sequence_t* cur_sequence,
media_track_t* cur_track,
uint32_t segment_count)
{
int media_type_char = cur_track->media_info.media_type == MEDIA_TYPE_VIDEO ? 'v' : 'a';
vod_str_t track_spec;
vod_str_t cur_base_url;
u_char track_spec_buffer[MAX_TRACK_SPEC_LENGTH];
uint32_t sequence_index = cur_sequence->index;
uint32_t i;
track_spec.data = track_spec_buffer;
// build the base url
if (base_url->len != 0)
{
cur_base_url.data = base_url_temp_buffer;
base_url_temp_buffer = vod_copy(base_url_temp_buffer, base_url->data, base_url->len);
if (cur_track->file_info.uri.len != 0)
{
base_url_temp_buffer = vod_copy(base_url_temp_buffer, cur_track->file_info.uri.data, cur_track->file_info.uri.len);
sequence_index = INVALID_SEQUENCE_INDEX; // no need to pass the sequence index since we have a direct uri
}
else
{
base_url_temp_buffer = vod_copy(base_url_temp_buffer, media_set->uri.data, media_set->uri.len);
}
*base_url_temp_buffer++ = '/';
cur_base_url.len = base_url_temp_buffer - cur_base_url.data;
}
else
{
cur_base_url.data = NULL;
cur_base_url.len = 0;
}
// get the track specification
dash_packager_get_track_spec(
&track_spec,
media_set,
clip_index,
sequence_index,
cur_track->index,
media_type_char);
// write the header
p = vod_sprintf(p,
VOD_DASH_MANIFEST_SEGMENT_LIST_HEADER,
segmenter_conf->segment_duration,
&cur_base_url,
&conf->init_file_name_prefix,
&track_spec);
// write the urls
for (i = 0; i < segment_count; i++)
{
p = vod_sprintf(p,
VOD_DASH_MANIFEST_SEGMENT_URL,
&cur_base_url,
&conf->fragment_file_name_prefix,
i + 1,
&track_spec);
}
p = vod_copy(p, VOD_DASH_MANIFEST_SEGMENT_LIST_FOOTER, sizeof(VOD_DASH_MANIFEST_SEGMENT_LIST_FOOTER) - 1);
return p;
}
vod_status_t
manifest_utils_build_request_params_string(
request_context_t* request_context,
uint32_t* has_tracks,
uint32_t segment_index,
uint32_t sequences_mask,
uint32_t* sequence_tracks_mask,
uint32_t* tracks_mask,
vod_str_t* suffix,
vod_str_t* args_str,
vod_str_t* result)
{
u_char* p;
size_t result_size;
bool_t newline_shift = FALSE;
if (sequence_tracks_mask != NULL)
{
return manifest_utils_build_request_params_string_per_sequence_tracks(
request_context,
segment_index,
sequences_mask,
sequence_tracks_mask,
result);
}
result_size = suffix->len + args_str->len;
if (suffix->data[suffix->len - 1] == '\n')
{
newline_shift = TRUE;
}
// segment index
if (segment_index != INVALID_SEGMENT_INDEX)
{
result_size += 1 + vod_get_int_print_len(segment_index + 1);
}
// sequence mask
if (sequences_mask != 0xffffffff)
{
result_size += vod_get_number_of_set_bits(sequences_mask) * (sizeof("-f32") - 1);
}
// video tracks
if (tracks_mask[MEDIA_TYPE_VIDEO] == 0xffffffff)
{
result_size += sizeof("-v0") - 1;
}
else
{
result_size += vod_get_number_of_set_bits(tracks_mask[MEDIA_TYPE_VIDEO]) * (sizeof("-v32") - 1);
}
// audio tracks
if (tracks_mask[MEDIA_TYPE_AUDIO] == 0xffffffff)
{
result_size += sizeof("-a0") - 1;
}
else
{
result_size += vod_get_number_of_set_bits(tracks_mask[MEDIA_TYPE_AUDIO]) * (sizeof("-a32") - 1);
}
p = vod_alloc(request_context->pool, result_size + 1);
if (p == NULL)
{
vod_log_debug0(VOD_LOG_DEBUG_LEVEL, request_context->log, 0,
"manifest_utils_build_request_params_string: vod_alloc failed");
return VOD_ALLOC_FAILED;
}
result->data = p;
// segment index
if (segment_index != INVALID_SEGMENT_INDEX)
{
p = vod_sprintf(p, "-%uD", segment_index + 1);
}
// sequence mask
if (sequences_mask != 0xffffffff)
{
p = manifest_utils_write_bitmask(p, sequences_mask, 'f');
}
// video tracks
if (has_tracks[MEDIA_TYPE_VIDEO])
{
if (tracks_mask[MEDIA_TYPE_VIDEO] == 0xffffffff)
{
p = vod_copy(p, "-v0", sizeof("-v0") - 1);
}
else
{
p = manifest_utils_write_bitmask(p, tracks_mask[MEDIA_TYPE_VIDEO], 'v');
}
}
// audio tracks
if (has_tracks[MEDIA_TYPE_AUDIO])
{
if (tracks_mask[MEDIA_TYPE_AUDIO] == 0xffffffff)
{
p = vod_copy(p, "-a0", sizeof("-a0") - 1);
}
else
{
p = manifest_utils_write_bitmask(p, tracks_mask[MEDIA_TYPE_AUDIO], 'a');
}
}
p = vod_copy(p, suffix->data, newline_shift ? suffix->len - 1 : suffix->len);
p = vod_copy(p, args_str->data, args_str->len);
if (newline_shift)
{
*p++ = '\n';
}
result->len = p - result->data;
if (result->len > result_size)
{
vod_log_error(VOD_LOG_ERR, request_context->log, 0,
"manifest_utils_build_request_params_string: result length %uz exceeded allocated length %uz",
result->len, result_size);
return VOD_UNEXPECTED;
}
return VOD_OK;
}
static u_char*
dash_packager_write_mpd_period(
u_char* p,
u_char* base_url_temp_buffer,
segment_durations_t* segment_durations,
segment_duration_item_t** cur_duration_items,
uint32_t clip_index,
dash_manifest_config_t* conf,
vod_str_t* base_url,
segmenter_conf_t* segmenter_conf,
media_set_t* media_set,
write_tags_callback_t write_representation_tags,
void* representation_tags_writer_context)
{
media_clip_filtered_t* cur_clip;
media_sequence_t* cur_sequence;
media_track_t* last_track;
media_track_t* cur_track;
vod_str_t representation_id;
u_char representation_id_buffer[MAX_TRACK_SPEC_LENGTH];
uint32_t filtered_clip_index;
uint32_t max_width = 0;
uint32_t max_height = 0;
uint32_t max_framerate_duration = 0;
uint32_t max_framerate_timescale = 0;
uint32_t segment_count = 0;
representation_id.data = representation_id_buffer;
if (media_set->use_discontinuity)
{
p = vod_sprintf(p,
VOD_DASH_MANIFEST_PERIOD_DURATION_HEADER,
clip_index,
media_set->durations[clip_index] / 1000,
media_set->durations[clip_index] % 1000);
}
else
{
p = vod_copy(p, VOD_DASH_MANIFEST_PERIOD_HEADER, sizeof(VOD_DASH_MANIFEST_PERIOD_HEADER) - 1);
}
// Note: clip_index can be greater than clip count when consistentSequenceMediaInfo is true
filtered_clip_index = clip_index < media_set->clip_count ? clip_index : 0;
// video adaptation set
if (media_set->track_count[MEDIA_TYPE_VIDEO] != 0)
{
// get the max width, height and frame rate
cur_track = media_set->filtered_tracks + filtered_clip_index * media_set->total_track_count;
last_track = cur_track + media_set->total_track_count;
for (; cur_track < last_track; cur_track++)
{
if (cur_track->media_info.media_type != MEDIA_TYPE_VIDEO)
{
continue;
}
if (cur_track->media_info.u.video.width > max_width)
{
max_width = cur_track->media_info.u.video.width;
}
if (cur_track->media_info.u.video.height > max_height)
{
max_height = cur_track->media_info.u.video.height;
}
if (max_framerate_duration == 0 ||
cur_track->media_info.timescale * max_framerate_duration >
max_framerate_timescale * cur_track->media_info.min_frame_duration)
{
max_framerate_duration = cur_track->media_info.min_frame_duration;
max_framerate_timescale = cur_track->media_info.timescale;
}
}
// print the header
p = vod_sprintf(p,
VOD_DASH_MANIFEST_VIDEO_HEADER,
max_width,
max_height,
(uint32_t)max_framerate_timescale / max_framerate_duration,
(uint32_t)(((uint64_t)max_framerate_timescale * 1000) / max_framerate_duration % 1000));
// print the segment template
switch (conf->manifest_format)
{
case FORMAT_SEGMENT_TEMPLATE:
p = dash_packager_write_segment_template(
p,
conf,
segmenter_conf,
base_url);
break;
case FORMAT_SEGMENT_TIMELINE:
p = dash_packager_write_segment_timeline(
p,
conf,
&segment_durations[MEDIA_TYPE_VIDEO],
&cur_duration_items[MEDIA_TYPE_VIDEO],
base_url);
break;
case FORMAT_SEGMENT_LIST:
if (media_set->use_discontinuity)
{
segment_count = dash_packager_get_cur_clip_segment_count(
&segment_durations[MEDIA_TYPE_VIDEO],
&cur_duration_items[MEDIA_TYPE_VIDEO]);
}
else
{
segment_count = segment_durations[MEDIA_TYPE_VIDEO].segment_count;
}
break;
}
// print the representations
for (cur_sequence = media_set->sequences; cur_sequence < media_set->sequences_end; cur_sequence++)
{
cur_clip = &cur_sequence->filtered_clips[filtered_clip_index];
last_track = cur_clip->last_track;
for (cur_track = cur_clip->first_track; cur_track < last_track; cur_track++)
{
if (cur_track->media_info.media_type != MEDIA_TYPE_VIDEO)
{
continue;
}
dash_packager_get_track_spec(
&representation_id, media_set, clip_index, cur_sequence->index, cur_track->index, 'v');
p = vod_sprintf(p,
VOD_DASH_MANIFEST_VIDEO_PREFIX,
&representation_id,
&cur_track->media_info.codec_name,
(uint32_t)cur_track->media_info.u.video.width,
(uint32_t)cur_track->media_info.u.video.height,
(uint32_t)(cur_track->media_info.timescale / cur_track->media_info.min_frame_duration),
(uint32_t)(((uint64_t)cur_track->media_info.timescale * 1000) / cur_track->media_info.min_frame_duration % 1000),
cur_track->media_info.bitrate
);
if (conf->manifest_format == FORMAT_SEGMENT_LIST)
{
p = dash_packager_write_segment_list(
p,
conf,
media_set,
segmenter_conf,
base_url,
base_url_temp_buffer,
clip_index,
cur_sequence,
cur_track,
segment_count);
}
// write any additional tags
if (write_representation_tags != NULL)
{
p = write_representation_tags(representation_tags_writer_context, p, cur_track);
}
p = vod_copy(p, VOD_DASH_MANIFEST_VIDEO_SUFFIX, sizeof(VOD_DASH_MANIFEST_VIDEO_SUFFIX) - 1);
}
}
// print the footer
p = vod_copy(p, VOD_DASH_MANIFEST_VIDEO_FOOTER, sizeof(VOD_DASH_MANIFEST_VIDEO_FOOTER) - 1);
}
// audio adaptation set
if (media_set->track_count[MEDIA_TYPE_AUDIO] != 0)
{
// print the header
p = vod_copy(p, VOD_DASH_MANIFEST_AUDIO_HEADER, sizeof(VOD_DASH_MANIFEST_AUDIO_HEADER) - 1);
// print the segment template
switch (conf->manifest_format)
{
case FORMAT_SEGMENT_TEMPLATE:
p = dash_packager_write_segment_template(
p,
conf,
segmenter_conf,
base_url);
break;
case FORMAT_SEGMENT_TIMELINE:
p = dash_packager_write_segment_timeline(
p,
conf,
&segment_durations[MEDIA_TYPE_AUDIO],
&cur_duration_items[MEDIA_TYPE_AUDIO],
base_url);
break;
case FORMAT_SEGMENT_LIST:
if (media_set->use_discontinuity)
{
segment_count = dash_packager_get_cur_clip_segment_count(
&segment_durations[MEDIA_TYPE_AUDIO],
&cur_duration_items[MEDIA_TYPE_AUDIO]);
}
else
{
segment_count = segment_durations[MEDIA_TYPE_AUDIO].segment_count;
}
break;
}
// print the representations
for (cur_sequence = media_set->sequences; cur_sequence < media_set->sequences_end; cur_sequence++)
{
cur_clip = &cur_sequence->filtered_clips[filtered_clip_index];
last_track = cur_clip->last_track;
for (cur_track = cur_clip->first_track; cur_track < last_track; cur_track++)
{
if (cur_track->media_info.media_type != MEDIA_TYPE_AUDIO)
{
continue;
}
dash_packager_get_track_spec(
&representation_id, media_set, clip_index, cur_sequence->index, cur_track->index, 'a');
p = vod_sprintf(p,
VOD_DASH_MANIFEST_AUDIO_PREFIX,
&representation_id,
&cur_track->media_info.codec_name,
cur_track->media_info.u.audio.sample_rate,
cur_track->media_info.bitrate);
if (conf->manifest_format == FORMAT_SEGMENT_LIST)
{
p = dash_packager_write_segment_list(
p,
conf,
media_set,
segmenter_conf,
base_url,
base_url_temp_buffer,
clip_index,
cur_sequence,
cur_track,
segment_count);
}
// write any additional tags
if (write_representation_tags != NULL)
{
p = write_representation_tags(representation_tags_writer_context, p, cur_track);
}
p = vod_copy(p, VOD_DASH_MANIFEST_AUDIO_SUFFIX, sizeof(VOD_DASH_MANIFEST_AUDIO_SUFFIX) - 1);
}
}
// print the footer
p = vod_copy(p, VOD_DASH_MANIFEST_AUDIO_FOOTER, sizeof(VOD_DASH_MANIFEST_AUDIO_FOOTER) - 1);
}
p = vod_copy(p, VOD_DASH_MANIFEST_PERIOD_FOOTER, sizeof(VOD_DASH_MANIFEST_PERIOD_FOOTER) - 1);
return p;
}
static vod_status_t
manifest_utils_build_request_params_string_per_sequence_tracks(
request_context_t* request_context,
uint32_t segment_index,
uint32_t sequences_mask,
uint32_t* sequence_tracks_mask,
vod_str_t* result)
{
u_char* p;
size_t result_size;
uint32_t* tracks_mask;
uint32_t i;
result_size = 0;
// segment index
if (segment_index != INVALID_SEGMENT_INDEX)
{
result_size += 1 + vod_get_int_print_len(segment_index + 1);
}
for (i = 0, tracks_mask = sequence_tracks_mask;
i < MAX_SEQUENCES;
i++, tracks_mask += MEDIA_TYPE_COUNT)
{
if ((sequences_mask & (1 << i)) == 0)
{
continue;
}
// sequence
result_size += sizeof("-f32") - 1;
// video tracks
if (tracks_mask[MEDIA_TYPE_VIDEO] == 0xffffffff)
{
result_size += sizeof("-v0") - 1;
}
else
{
result_size += vod_get_number_of_set_bits(tracks_mask[MEDIA_TYPE_VIDEO]) * (sizeof("-v32") - 1);
}
// audio tracks
if (tracks_mask[MEDIA_TYPE_AUDIO] == 0xffffffff)
{
result_size += sizeof("-a0") - 1;
}
else
{
result_size += vod_get_number_of_set_bits(tracks_mask[MEDIA_TYPE_AUDIO]) * (sizeof("-a32") - 1);
}
}
p = vod_alloc(request_context->pool, result_size + 1);
if (p == NULL)
{
vod_log_debug0(VOD_LOG_DEBUG_LEVEL, request_context->log, 0,
"manifest_utils_build_request_params_string_per_sequence_tracks: vod_alloc failed");
return VOD_ALLOC_FAILED;
}
result->data = p;
// segment index
if (segment_index != INVALID_SEGMENT_INDEX)
{
p = vod_sprintf(p, "-%uD", segment_index + 1);
}
for (i = 0, tracks_mask = sequence_tracks_mask;
i < MAX_SEQUENCES;
i++, tracks_mask += MEDIA_TYPE_COUNT)
{
if ((sequences_mask & (1 << i)) == 0)
{
continue;
}
// sequence
p = vod_sprintf(p, "-f%uD", i + 1);
// video tracks
switch (tracks_mask[MEDIA_TYPE_VIDEO])
{
case 0xffffffff:
p = vod_copy(p, "-v0", sizeof("-v0") - 1);
break;
case 0:
break;
default:
p = manifest_utils_write_bitmask(p, tracks_mask[MEDIA_TYPE_VIDEO], 'v');
break;
}
// audio tracks
switch (tracks_mask[MEDIA_TYPE_AUDIO])
{
case 0xffffffff:
p = vod_copy(p, "-a0", sizeof("-a0") - 1);
break;
case 0:
break;
default:
p = manifest_utils_write_bitmask(p, tracks_mask[MEDIA_TYPE_AUDIO], 'a');
break;
}
}
result->len = p - result->data;
if (result->len > result_size)
{
vod_log_error(VOD_LOG_ERR, request_context->log, 0,
"manifest_utils_build_request_params_string_per_sequence_tracks: result length %uz exceeded allocated length %uz",
result->len, result_size);
return VOD_UNEXPECTED;
}
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,
segmenter_conf_t* segmenter_conf,
media_set_t* media_set,
size_t representation_tags_size,
write_tags_callback_t write_representation_tags,
void* representation_tags_writer_context,
vod_str_t* result)
{
segment_durations_t segment_durations[MEDIA_TYPE_COUNT];
segment_duration_item_t* cur_duration_items[MEDIA_TYPE_COUNT];
size_t base_url_temp_buffer_size = 0;
size_t base_period_size;
size_t result_size;
size_t urls_length;
uint32_t period_count = media_set->use_discontinuity ? media_set->total_clip_count : 1;
uint32_t clip_index;
uint32_t media_type;
vod_status_t rc;
u_char* base_url_temp_buffer = NULL;
u_char* p;
// 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,
&segment_durations[media_type]);
if (rc != VOD_OK)
{
return rc;
}
}
// remove redundant tracks
dash_packager_remove_redundant_tracks(
conf->duplicate_bitrate_threshold,
media_set);
// calculate the total size
urls_length = 2 * base_url->len + conf->init_file_name_prefix.len + conf->fragment_file_name_prefix.len;
base_period_size =
sizeof(VOD_DASH_MANIFEST_PERIOD_DURATION_HEADER) - 1 + 3 * VOD_INT32_LEN +
sizeof(VOD_DASH_MANIFEST_VIDEO_HEADER) - 1 + 4 * VOD_INT32_LEN +
media_set->track_count[MEDIA_TYPE_VIDEO] * (
sizeof(VOD_DASH_MANIFEST_VIDEO_PREFIX) - 1 + MAX_TRACK_SPEC_LENGTH + MAX_CODEC_NAME_SIZE + 5 * VOD_INT32_LEN +
sizeof(VOD_DASH_MANIFEST_VIDEO_SUFFIX) - 1) +
sizeof(VOD_DASH_MANIFEST_VIDEO_FOOTER) - 1 +
sizeof(VOD_DASH_MANIFEST_AUDIO_HEADER) - 1 +
media_set->track_count[MEDIA_TYPE_AUDIO] * (
sizeof(VOD_DASH_MANIFEST_AUDIO_PREFIX) - 1 + MAX_TRACK_SPEC_LENGTH + MAX_CODEC_NAME_SIZE + 2 * VOD_INT32_LEN +
sizeof(VOD_DASH_MANIFEST_AUDIO_SUFFIX) - 1) +
sizeof(VOD_DASH_MANIFEST_AUDIO_FOOTER) - 1 +
sizeof(VOD_DASH_MANIFEST_PERIOD_FOOTER) - 1 +
representation_tags_size;
result_size =
sizeof(VOD_DASH_MANIFEST_HEADER) - 1 + 3 * VOD_INT32_LEN +
base_period_size * period_count +
sizeof(VOD_DASH_MANIFEST_FOOTER);
switch (conf->manifest_format)
{
case FORMAT_SEGMENT_TEMPLATE:
result_size +=
(sizeof(VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_FIXED) - 1 + urls_length + VOD_INT64_LEN) * MEDIA_TYPE_COUNT * period_count;
break;
case FORMAT_SEGMENT_TIMELINE:
for (media_type = 0; media_type < MEDIA_TYPE_COUNT; media_type++)
{
if (media_set->track_count[media_type] == 0)
{
continue;
}
result_size +=
(sizeof(VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_HEADER) - 1 + urls_length +
sizeof(VOD_DASH_MANIFEST_SEGMENT_TEMPLATE_FOOTER) - 1) * period_count +
(sizeof(VOD_DASH_MANIFEST_SEGMENT_REPEAT) - 1 + 2 * VOD_INT32_LEN) * segment_durations[media_type].item_count;
}
break;
case FORMAT_SEGMENT_LIST:
result_size += dash_packager_get_segment_list_total_size(
conf,
media_set,
segment_durations,
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;
}
if (base_url_temp_buffer_size != 0)
{
base_url_temp_buffer = vod_alloc(request_context->pool, base_url_temp_buffer_size);
if (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;
}
}
// print the manifest header
p = vod_sprintf(result->data,
VOD_DASH_MANIFEST_HEADER,
(uint32_t)(media_set->total_duration / 1000),
(uint32_t)(media_set->total_duration % 1000),
(uint32_t)(segmenter_conf->max_segment_duration / 1000));
cur_duration_items[MEDIA_TYPE_VIDEO] = segment_durations[MEDIA_TYPE_VIDEO].items;
cur_duration_items[MEDIA_TYPE_AUDIO] = segment_durations[MEDIA_TYPE_AUDIO].items;
for (clip_index = 0; clip_index < period_count; clip_index++)
{
p = dash_packager_write_mpd_period(
p,
base_url_temp_buffer,
segment_durations,
cur_duration_items,
clip_index,
conf,
base_url,
segmenter_conf,
media_set,
write_representation_tags,
representation_tags_writer_context);
}
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;
}
