void payload_string(PAYLOAD entry, const char *str)
{
if (str == NULL) {
payload_data(entry, 0, NULL);
}
else {
payload_data(entry, strlen(str), (void*)str);
}
}
/*----------------------------------------------------------------------
| AP4_AvccAtom::Create
+---------------------------------------------------------------------*/
AP4_AvccAtom*
AP4_AvccAtom::Create(AP4_Size size, AP4_ByteStream& stream)
{
// read the raw bytes in a buffer
unsigned int payload_size = size-AP4_ATOM_HEADER_SIZE;
AP4_DataBuffer payload_data(payload_size);
AP4_Result result = stream.Read(payload_data.UseData(), payload_size);
if (AP4_FAILED(result)) return NULL;
// check the version
const AP4_UI08* payload = payload_data.GetData();
if (payload[0] != 1) {
return NULL;
}
// check the size
if (payload_size < 6) return NULL;
unsigned int num_seq_params = payload[5]&31;
unsigned int cursor = 6;
for (unsigned int i=0; i<num_seq_params; i++) {
if (cursor+2 > payload_size) return NULL;
cursor += 2+AP4_BytesToInt16BE(&payload[cursor]);
if (cursor > payload_size) return NULL;
}
unsigned int num_pic_params = payload[cursor++];
if (cursor > payload_size) return NULL;
for (unsigned int i=0; i<num_pic_params; i++) {
if (cursor+2 > payload_size) return NULL;
cursor += 2+AP4_BytesToInt16BE(&payload[cursor]);
if (cursor > payload_size) return NULL;
}
return new AP4_AvccAtom(size, payload);
}
// ---------------------------------------------------------------------------
// ---------------------------------------------------------------------------
//
core_frame_dot11_ie_c* core_frame_dot11_c::first_ie()
{
u16_t offset = first_ie_offset();
if( !offset )
{
DEBUG( "core_frame_dot11_c::instance() - the frame has no IEs" );
return NULL;
}
current_ie_m = payload_data() + offset;
current_ie_max_length_m = payload_data_length() - offset;
return next_ie();
}
