bool
wav_ac3wav_demuxer_c::probe(mm_io_cptr &io) {
io->save_pos();
int len = io->read(m_buf[m_cur_buf]->get_buffer(), AC3WAV_BLOCK_SIZE);
io->restore_pos();
if (decode_buffer(len) > 0)
return true;
m_swap_bytes = true;
return decode_buffer(len) > 0;
}
bool
wav_dts_demuxer_c::probe(mm_io_cptr &io) {
io->save_pos();
auto read_buf = memory_c::alloc(DTS_READ_SIZE);
read_buf->set_size(io->read(read_buf->get_buffer(), DTS_READ_SIZE));
io->restore_pos();
if (!m_parser.detect(*read_buf, 5))
return false;
m_codec.set_specialization(m_parser.get_first_header().get_codec_specialization());
return true;
}
generic_reader_c::generic_reader_c(const track_info_c &ti,
const mm_io_cptr &in)
: m_ti{ti}
, m_in{in}
, m_size{static_cast<uint64_t>(in->get_size())}
, m_ptzr_first_packet{}
, m_max_timecode_seen{}
, m_appending{}
, m_num_video_tracks{}
, m_num_audio_tracks{}
, m_num_subtitle_tracks{}
, m_reference_timecode_tolerance{}
{
add_all_requested_track_ids(*this, m_ti.m_atracks.m_items);
add_all_requested_track_ids(*this, m_ti.m_vtracks.m_items);
add_all_requested_track_ids(*this, m_ti.m_stracks.m_items);
add_all_requested_track_ids(*this, m_ti.m_btracks.m_items);
add_all_requested_track_ids(*this, m_ti.m_track_tags.m_items);
add_all_requested_track_ids(*this, m_ti.m_all_fourccs);
add_all_requested_track_ids(*this, m_ti.m_display_properties);
add_all_requested_track_ids(*this, m_ti.m_timecode_syncs);
add_all_requested_track_ids(*this, m_ti.m_cue_creations);
add_all_requested_track_ids(*this, m_ti.m_default_track_flags);
add_all_requested_track_ids(*this, m_ti.m_fix_bitstream_frame_rate_flags);
add_all_requested_track_ids(*this, m_ti.m_languages);
add_all_requested_track_ids(*this, m_ti.m_sub_charsets);
add_all_requested_track_ids(*this, m_ti.m_all_tags);
add_all_requested_track_ids(*this, m_ti.m_all_aac_is_sbr);
add_all_requested_track_ids(*this, m_ti.m_compression_list);
add_all_requested_track_ids(*this, m_ti.m_track_names);
add_all_requested_track_ids(*this, m_ti.m_all_ext_timecodes);
add_all_requested_track_ids(*this, m_ti.m_pixel_crop_list);
add_all_requested_track_ids(*this, m_ti.m_reduce_to_core);
}
bool
wav_dts_demuxer_c::probe(mm_io_cptr &io) {
io->save_pos();
int len = io->read(m_buf[m_cur_buf]->get_buffer(), DTS_READ_SIZE);
io->restore_pos();
if (detect_dts(m_buf[m_cur_buf]->get_buffer(), len, m_pack_14_16, m_swap_bytes)) {
len = decode_buffer(len);
int pos = find_consecutive_dts_headers(m_buf[m_cur_buf]->get_buffer(), len, 5);
if (0 <= pos) {
if (0 > find_dts_header(m_buf[m_cur_buf]->get_buffer() + pos, len - pos, &m_dtsheader))
return false;
mxverb(3, boost::format("DTSinWAV: 14->16 %1% swap %2%\n") % m_pack_14_16 % m_swap_bytes);
return true;
}
}
return false;
}
bool
wav_ac3acm_demuxer_c::probe(mm_io_cptr &io) {
io->save_pos();
int len = io->read(m_buf[m_cur_buf]->get_buffer(), AC3ACM_READ_SIZE);
io->restore_pos();
ac3::parser_c parser;
int pos = parser.find_consecutive_frames(m_buf[m_cur_buf]->get_buffer(), len, 4);
if (-1 == pos) {
m_swap_bytes = true;
decode_buffer(len);
pos = parser.find_consecutive_frames(m_buf[m_cur_buf]->get_buffer(), len, 4);
}
if (-1 == pos)
return false;
return m_ac3header.decode_header(m_buf[m_cur_buf]->get_buffer() + pos, len - pos);
}
size_t
fourcc_c::write(mm_io_cptr const &io,
fourcc_c::byte_order_t byte_order) {
return write(io.get(), byte_order);
}
