static u_char*
edash_packager_write_content_protection(void* ctx, u_char* p, media_track_t* track)
{
write_content_protection_context_t* context = ctx;
drm_info_t* drm_info = (drm_info_t*)track->file_info.drm_info;
drm_system_info_t* cur_info;
vod_str_t base64;
vod_str_t pssh;
p = vod_copy(p, VOD_EDASH_MANIFEST_CONTENT_PROTECTION_CENC, sizeof(VOD_EDASH_MANIFEST_CONTENT_PROTECTION_CENC) - 1);
for (cur_info = drm_info->pssh_array.first; cur_info < drm_info->pssh_array.last; cur_info++)
{
if (vod_memcmp(cur_info->system_id, edash_playready_system_id, sizeof(edash_playready_system_id)) == 0)
{
if (context->write_playready_kid)
{
p = vod_copy(p, VOD_EDASH_MANIFEST_CONTENT_PROTECTION_PLAYREADY_V2_PART1, sizeof(VOD_EDASH_MANIFEST_CONTENT_PROTECTION_PLAYREADY_V2_PART1) - 1);
p = mp4_encrypt_write_guid(p, cur_info->system_id);
p = vod_copy(p, VOD_EDASH_MANIFEST_CONTENT_PROTECTION_PLAYREADY_V2_PART2, sizeof(VOD_EDASH_MANIFEST_CONTENT_PROTECTION_PLAYREADY_V2_PART2) - 1);
p = mp4_encrypt_write_guid(p, drm_info->key_id);
}
else
{
p = vod_copy(p, VOD_EDASH_MANIFEST_CONTENT_PROTECTION_PLAYREADY_PART1, sizeof(VOD_EDASH_MANIFEST_CONTENT_PROTECTION_PLAYREADY_PART1) - 1);
p = mp4_encrypt_write_guid(p, cur_info->system_id);
}
p = vod_copy(p, VOD_EDASH_MANIFEST_CONTENT_PROTECTION_PLAYREADY_PART3, sizeof(VOD_EDASH_MANIFEST_CONTENT_PROTECTION_PLAYREADY_PART3) - 1);
base64.data = p;
vod_encode_base64(&base64, &cur_info->data);
p += base64.len;
p = vod_copy(p, VOD_EDASH_MANIFEST_CONTENT_PROTECTION_PLAYREADY_PART4, sizeof(VOD_EDASH_MANIFEST_CONTENT_PROTECTION_PLAYREADY_PART4) - 1);
}
else
{
p = vod_copy(p, VOD_EDASH_MANIFEST_CONTENT_PROTECTION_CENC_PART1, sizeof(VOD_EDASH_MANIFEST_CONTENT_PROTECTION_CENC_PART1) - 1);
p = mp4_encrypt_write_guid(p, cur_info->system_id);
p = vod_copy(p, VOD_EDASH_MANIFEST_CONTENT_PROTECTION_CENC_PART2, sizeof(VOD_EDASH_MANIFEST_CONTENT_PROTECTION_CENC_PART2) - 1);
p = mp4_encrypt_write_guid(p, drm_info->key_id);
p = vod_copy(p, VOD_EDASH_MANIFEST_CONTENT_PROTECTION_CENC_PART3, sizeof(VOD_EDASH_MANIFEST_CONTENT_PROTECTION_CENC_PART3) - 1);
pssh.data = context->temp_buffer;
pssh.len = edash_packager_write_pssh(pssh.data, cur_info) - pssh.data;
base64.data = p;
vod_encode_base64(&base64, &pssh);
p += base64.len;
p = vod_copy(p, VOD_EDASH_MANIFEST_CONTENT_PROTECTION_CENC_PART4, sizeof(VOD_EDASH_MANIFEST_CONTENT_PROTECTION_CENC_PART4) - 1);
}
}
return p;
}
static u_char*
hds_write_base64_abst_atom(u_char* p, u_char* temp_buffer, media_set_t* media_set, hds_segment_durations_t* segment_durations)
{
vod_str_t binary;
vod_str_t base64;
binary.data = temp_buffer;
binary.len = hds_write_abst_atom(binary.data, media_set, segment_durations) - binary.data;
base64.data = p;
vod_encode_base64(&base64, &binary);
return p + base64.len;
}
static u_char*
mss_playready_write_protection_tag(void* context, u_char* p, media_set_t* media_set)
{
// Note: taking only the first sequence, in mss all renditions must have the same key
drm_info_t* drm_info = (drm_info_t*)media_set->sequences[0].drm_info;
drm_system_info_t* cur_info;
vod_str_t base64;
p = vod_copy(p, VOD_MSS_PLAYREADY_PROTECTION_PREFIX, sizeof(VOD_MSS_PLAYREADY_PROTECTION_PREFIX) - 1);
for (cur_info = drm_info->pssh_array.first; cur_info < drm_info->pssh_array.last; cur_info++)
{
p = vod_copy(p, VOD_MSS_PLAYREADY_PROTECTION_HEADER_PREFIX, sizeof(VOD_MSS_PLAYREADY_PROTECTION_HEADER_PREFIX) - 1);
p = mp4_encrypt_write_guid(p, cur_info->system_id);
p = vod_copy(p, VOD_MSS_PLAYREADY_PROTECTION_HEADER_DELIMITER, sizeof(VOD_MSS_PLAYREADY_PROTECTION_HEADER_DELIMITER) - 1);
base64.data = p;
vod_encode_base64(&base64, &cur_info->data);
p += base64.len;
p = vod_copy(p, VOD_MSS_PLAYREADY_PROTECTION_HEADER_SUFFIX, sizeof(VOD_MSS_PLAYREADY_PROTECTION_HEADER_SUFFIX) - 1);
}
p = vod_copy(p, VOD_MSS_PLAYREADY_PROTECTION_SUFFIX, sizeof(VOD_MSS_PLAYREADY_PROTECTION_SUFFIX) - 1);
return p;
}