vod_status_t
edash_packager_build_init_mp4(
request_context_t* request_context,
media_set_t* media_set,
bool_t has_clear_lead,
bool_t size_only,
vod_str_t* result)
{
media_track_t* first_track = media_set->sequences[0].filtered_clips[0].first_track;
mp4_encrypt_info_t* drm_info = (mp4_encrypt_info_t*)media_set->sequences[0].drm_info;
stsd_writer_context_t stsd_writer_context;
atom_writer_t pssh_atom_writer;
atom_writer_t stsd_atom_writer;
mp4_encrypt_system_info_t* cur_info;
vod_status_t rc;
rc = edash_packager_init_stsd_writer_context(
request_context,
first_track->media_info.media_type,
&first_track->raw_atoms[RTA_STSD],
has_clear_lead,
drm_info->key_id,
&stsd_writer_context);
if (rc != VOD_OK)
{
vod_log_debug1(VOD_LOG_DEBUG_LEVEL, request_context->log, 0,
"edash_packager_build_init_mp4: edash_packager_init_stsd_writer_context failed %i", rc);
return rc;
}
// build the pssh writer
pssh_atom_writer.atom_size = 0;
for (cur_info = drm_info->pssh_array.first; cur_info < drm_info->pssh_array.last; cur_info++)
{
pssh_atom_writer.atom_size += ATOM_HEADER_SIZE + sizeof(pssh_atom_t) + cur_info->data.len;
}
pssh_atom_writer.write = edash_packager_write_pssh;
pssh_atom_writer.context = &drm_info->pssh_array;
// build the stsd writer
stsd_atom_writer.atom_size = stsd_writer_context.stsd_atom_size;
stsd_atom_writer.write = edash_packager_write_stsd;
stsd_atom_writer.context = &stsd_writer_context;
rc = dash_packager_build_init_mp4(
request_context,
media_set,
size_only,
&pssh_atom_writer,
&stsd_atom_writer,
result);
if (rc != VOD_OK)
{
vod_log_debug1(VOD_LOG_DEBUG_LEVEL, request_context->log, 0,
"edash_packager_build_init_mp4: dash_packager_build_init_mp4 failed %i", rc);
return rc;
}
return VOD_OK;
}
static ngx_int_t
ngx_http_vod_dash_handle_init_segment(
ngx_http_vod_submodule_context_t* submodule_context,
ngx_str_t* response,
ngx_str_t* content_type)
{
vod_status_t rc;
if (submodule_context->conf->drm_enabled)
{
rc = edash_packager_build_init_mp4(
&submodule_context->request_context,
&submodule_context->media_set,
submodule_context->conf->drm_clear_lead_segment_count > 0,
ngx_http_vod_submodule_size_only(submodule_context),
response);
}
else
{
rc = dash_packager_build_init_mp4(
&submodule_context->request_context,
&submodule_context->media_set,
ngx_http_vod_submodule_size_only(submodule_context),
NULL,
NULL,
response);
}
if (rc != VOD_OK)
{
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, submodule_context->request_context.log, 0,
"ngx_http_vod_dash_handle_init_segment: (e)dash_packager_build_init_mp4 failed %i", rc);
return ngx_http_vod_status_to_ngx_error(rc);
}
if (submodule_context->media_set.track_count[MEDIA_TYPE_VIDEO] != 0)
{
content_type->data = mp4_video_content_type;
content_type->len = sizeof(mp4_video_content_type) - 1;
}
else
{
content_type->data = mp4_audio_content_type;
content_type->len = sizeof(mp4_audio_content_type) - 1;
}
return NGX_OK;
}