+++ /dev/null
-use super::*;
-use super::DemuxerError::*;
-//use io::byteio::*;
-//use frame::*;
-use formats::*;
-use std::io::SeekFrom;
-use std::mem;
-
-macro_rules! mktag {
- ($a:expr, $b:expr, $c:expr, $d:expr) => ({
- (($a as u32) << 24) | (($b as u32) << 16) | (($c as u32) << 8) | ($d as u32)
- });
- ($arr:expr) => ({
- (($arr[0] as u32) << 24) | (($arr[1] as u32) << 16) | (($arr[2] as u32) << 8) | ($arr[3] as u32)
- });
-}
-
-const RM_SIPRO_BLOCK_SIZES: [usize; 4] = [ 29, 19, 37, 20 ];
-const RM_SIPRO_SWAPS: [[u8; 2]; 38] = [
- [ 0, 63 ], [ 1, 22 ], [ 2, 44 ], [ 3, 90 ],
- [ 5, 81 ], [ 7, 31 ], [ 8, 86 ], [ 9, 58 ],
- [ 10, 36 ], [ 12, 68 ], [ 13, 39 ], [ 14, 73 ],
- [ 15, 53 ], [ 16, 69 ], [ 17, 57 ], [ 19, 88 ],
- [ 20, 34 ], [ 21, 71 ], [ 24, 46 ], [ 25, 94 ],
- [ 26, 54 ], [ 28, 75 ], [ 29, 50 ], [ 32, 70 ],
- [ 33, 92 ], [ 35, 74 ], [ 38, 85 ], [ 40, 56 ],
- [ 42, 87 ], [ 43, 65 ], [ 45, 59 ], [ 48, 79 ],
- [ 49, 93 ], [ 51, 89 ], [ 55, 95 ], [ 61, 76 ],
- [ 67, 83 ], [ 77, 80 ]
-];
-
-struct RMVideoStream {
- frame: Vec<u8>,
- hdr_size: usize,
- frame_size: usize,
- frame_pos: usize,
-}
-
-impl RMVideoStream {
- fn new() -> Self {
- RMVideoStream {
- frame: Vec::new(),
- hdr_size: 0,
- frame_size: 0,
- frame_pos: 0,
- }
- }
- fn flush(&mut self) {
- self.frame.truncate(0);
- self.frame_size = 0;
- self.frame_pos = 0;
- }
- fn start_slice(&mut self, num_slices: usize, frame_size: usize, data: &[u8]) {
- self.hdr_size = num_slices * 8 + 1;
- self.frame.resize(frame_size + self.hdr_size, 0);
- self.frame[0] = (num_slices - 1) as u8;
- self.frame_pos = 0;
- self.add_slice(1, data);
- }
- fn add_slice(&mut self, slice_no: usize, data: &[u8]) {
- self.write_slice_info(slice_no);
- let dslice = &mut self.frame[self.hdr_size + self.frame_pos..][..data.len()];
- dslice.copy_from_slice(data);
- self.frame_pos += data.len();
- }
- fn write_slice_info(&mut self, slice_no: usize) {
- let off = 1 + (slice_no - 1) * 8;
- self.frame[off + 0] = 0;
- self.frame[off + 1] = 0;
- self.frame[off + 2] = 0;
- self.frame[off + 3] = 1;
- self.frame[off + 4] = (self.frame_pos >> 24) as u8;
- self.frame[off + 5] = (self.frame_pos >> 16) as u8;
- self.frame[off + 6] = (self.frame_pos >> 8) as u8;
- self.frame[off + 7] = (self.frame_pos >> 0) as u8;
- }
- fn get_frame_data(&mut self) -> Vec<u8> {
- let mut v: Vec<u8> = Vec::new();
- mem::swap(&mut v, &mut self.frame);
- self.flush();
- v
- }
-}
-
-#[allow(dead_code)]
-#[derive(Clone,Copy,PartialEq)]
-enum Deinterleaver {
- None,
- RA28_8,
- Generic,
- Sipro,
- VBR,
-}
-
-#[allow(dead_code)]
-struct RMAudioStream {
- deint: Deinterleaver,
- iinfo: Option<InterleaveInfo>,
- buf: Vec<u8>,
- sub_packet: usize,
-}
-
-const RM_ILEAVE_INT0: u32 = mktag!(b"Int0");
-const RM_ILEAVE_INT4: u32 = mktag!(b"Int4");
-const RM_ILEAVE_GENR: u32 = mktag!(b"genr");
-const RM_ILEAVE_SIPR: u32 = mktag!(b"sipr");
-const RM_ILEAVE_VBRF: u32 = mktag!(b"vbrf");
-const RM_ILEAVE_VBRS: u32 = mktag!(b"vbrs");
-
-impl RMAudioStream {
- fn new(iinfo: Option<InterleaveInfo>) -> Self {
- let deint;
- let mut buf: Vec<u8>;
- if let Some(info) = iinfo {
- deint = match info.id {
- RM_ILEAVE_INT0 => Deinterleaver::None,
- RM_ILEAVE_INT4 => Deinterleaver::RA28_8,
- RM_ILEAVE_GENR => Deinterleaver::Generic,
- RM_ILEAVE_SIPR => Deinterleaver::Sipro,
- RM_ILEAVE_VBRF => Deinterleaver::VBR,
- RM_ILEAVE_VBRS => Deinterleaver::VBR,
- _ => {println!("unknown deint {:X}", info.id); Deinterleaver::None },
- };
- match deint {
- Deinterleaver::None => { buf = Vec::new(); },
- Deinterleaver::RA28_8 |
- Deinterleaver::Generic |
- Deinterleaver::Sipro => {
- let bsize = (info.frame_size as usize) * (info.factor as usize);
- buf = Vec::with_capacity(bsize);
- buf.resize(bsize, 0u8);
- },
- Deinterleaver::VBR => { unimplemented!("deint"); },
- };
- } else {
- deint = Deinterleaver::None;
- buf = Vec::new();
- }
- RMAudioStream { deint: deint, iinfo: iinfo, buf: buf, sub_packet: 0 }
- }
- fn read_apackets(&mut self, queued_packets: &mut Vec<NAPacket>, src: &mut ByteReader, stream: Rc<NAStream>, ts: u32, keyframe: bool, payload_size: usize) -> DemuxerResult<NAPacket> {
- let (tb_num, tb_den) = stream.get_timebase();
- let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den);
-
- if keyframe {
- self.sub_packet = 0;
- }
- match self.deint {
- Deinterleaver::None => { return src.read_packet(stream, ts, keyframe, payload_size); },
- Deinterleaver::RA28_8 => {
- let iinfo = self.iinfo.unwrap();
- let factor = iinfo.factor as usize;
- let halffact = factor >> 1;
- let fsize = iinfo.frame_size as usize;
- let bsize = iinfo.block_size as usize;
- let ppos = self.sub_packet;
- for sb in 0..halffact {
- let mut dst = &mut self.buf[sb * 2 * fsize + ppos * bsize..][..bsize];
- src.read_buf(&mut dst)?;
- }
- self.sub_packet += 1;
- if self.sub_packet == factor {
- self.sub_packet = 0;
- return Ok(NAPacket::new(stream, ts, true, self.buf.clone()));
- } else {
- return Err(DemuxerError::TryAgain);
- }
- },
- Deinterleaver::Generic => {
- let iinfo = self.iinfo.unwrap();
- let factor = iinfo.factor as usize;
- let fsize = iinfo.frame_size as usize;
- let bsize = iinfo.block_size as usize;
- let factor2 = fsize / bsize;
- let ppos = self.sub_packet;
-
- for sb in 0..factor2 {
- let sb_pos = factor * sb + ((factor + 1) >> 1) * (ppos & 1) + (ppos >> 1);
- let mut dst = &mut self.buf[bsize * sb_pos..][..bsize];
- src.read_buf(&mut dst)?;
- }
- },
- Deinterleaver::Sipro => {
- let iinfo = self.iinfo.unwrap();
- let fsize = iinfo.frame_size as usize;
- let ppos = self.sub_packet;
-
- let mut dst = &mut self.buf[fsize * ppos..][..fsize];
- src.read_buf(&mut dst)?;
- },
- _ => { return src.read_packet(stream, ts, keyframe, payload_size); },
- };
-
- let iinfo = self.iinfo.unwrap();
- let factor = iinfo.factor as usize;
- let fsize = if iinfo.block_size != 0 { iinfo.block_size } else { iinfo.frame_size } as usize;
-
- self.sub_packet += 1;
- if self.sub_packet < factor {
- return Err(DemuxerError::TryAgain);
- }
-
- self.sub_packet = 0;
-
- if self.deint == Deinterleaver::Sipro {
- sipro_restore(&mut self.buf, factor, fsize);
- }
-
- let mut frames_iter = self.buf.chunks(fsize);
- let pkt0 = frames_iter.next().unwrap();
-
- let pkt_ts = NATimeInfo::new(None, None, None, tb_num, tb_den);
- for pkts in frames_iter {
- let pkt = NAPacket::new(stream.clone(), pkt_ts, true, pkts.to_vec());
- queued_packets.push(pkt);
- }
- queued_packets.reverse();
- Ok(NAPacket::new(stream, ts, true, pkt0.to_vec()))
- }
-}
-
-fn sipro_restore(buf: &mut [u8], factor: usize, fsize: usize) {
- let stride = factor * fsize * 2 / 96;
- for i in 0..38 {
- let mut sidx = (RM_SIPRO_SWAPS[i][0] as usize) * stride;
- let mut didx = (RM_SIPRO_SWAPS[i][1] as usize) * stride;
- for _ in 0..stride {
- let in0 = buf[sidx >> 1];
- let in1 = buf[didx >> 1];
- let nib0 = (in0 >> ((sidx & 1) * 4)) & 0xF;
- let nib1 = (in1 >> ((didx & 1) * 4)) & 0xF;
-
- buf[didx >> 1] = (nib0 << (4 * (didx & 1))) | (in1 & (0xF << (4 * (!didx & 1))));
- buf[sidx >> 1] = (nib1 << (4 * (sidx & 1))) | (in0 & (0xF << (4 * (!sidx & 1))));
-
- sidx += 1;
- didx += 1;
- }
- }
-}
-
-enum RMStreamType {
- Audio(RMAudioStream),
- Video(RMVideoStream),
- Logical,
- Unknown,
-}
-
-struct RealMediaDemuxer<'a> {
- src: &'a mut ByteReader<'a>,
- data_pos: u64,
- num_packets: u32,
- cur_packet: u32,
-
- streams: Vec<RMStreamType>,
- str_ids: Vec<u16>,
-
- queued_pkts: Vec<NAPacket>,
- slice_buf: Vec<u8>,
-}
-
-fn find_codec_name(registry: &[(&[u8;4], &'static str)], fcc: u32) -> &'static str {
- for &(fourcc, name) in registry {
- if mktag!(fourcc) == fcc { return name; }
- }
- "unknown"
-}
-
-fn read_14or30(src: &mut ByteReader) -> DemuxerResult<(bool, u32)> {
- let tmp = src.read_u16be()?;
- let flag = (tmp & 0x8000) != 0;
- if (tmp & 0x4000) == 0x4000 {
- Ok((flag, ((tmp & 0x3FFF) as u32)))
- } else {
- let val = ((tmp as u32) << 16) | (src.read_u16be()? as u32);
- Ok((flag, val & 0x3FFFFFFF))
- }
-}
-
-fn read_video_buf(src: &mut ByteReader, stream: Rc<NAStream>, ts: u32, keyframe: bool, frame_size: usize) -> DemuxerResult<NAPacket> {
- let size = (frame_size as usize) + 9;
- let mut vec: Vec<u8> = Vec::with_capacity(size);
- vec.resize(size, 0);
- //v[0] = 0; // 1 slice
- vec[4] = 1;
- src.read_buf(&mut vec[9..])?;
-
- let (tb_num, tb_den) = stream.get_timebase();
- let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den);
- Ok(NAPacket::new(stream, ts, keyframe, vec))
-}
-
-fn read_multiple_frame(src: &mut ByteReader, stream: Rc<NAStream>, keyframe: bool, skip_mtype: bool) -> DemuxerResult<NAPacket> {
- if !skip_mtype {
- let mtype = src.read_byte()?;
- validate!(mtype == 0xC0);
- }
- let (_, frame_size) = read_14or30(src)?;
- let (_, timestamp) = read_14or30(src)?;
- let _seq_no = src.read_byte()?;
-//println!(" multiple frame size {} ts {} seq {}", frame_size, timestamp, seq_no);
-
- read_video_buf(src, stream, timestamp, keyframe, frame_size as usize)
-}
-
-impl<'a> DemuxCore<'a> for RealMediaDemuxer<'a> {
- #[allow(unused_variables)]
- fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> {
- self.read_header(strmgr)?;
- Ok(())
- }
-
-#[allow(unused_variables)]
- fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
- if !self.queued_pkts.is_empty() {
- let pkt = self.queued_pkts.pop().unwrap();
- return Ok(pkt);
- }
- loop {
- if self.cur_packet >= self.num_packets { return Err(DemuxerError::EOF); }
-
- let pkt_start = self.src.tell();
- let ver = self.src.read_u16le()?;
- validate!(ver <= 1);
- let len = self.src.read_u16be()? as usize;
- let str_no = self.src.read_u16be()?;
- let ts = self.src.read_u32be()?;
- let _pkt_grp;
- if ver == 0 {
- _pkt_grp = self.src.read_byte()?;
- } else {
- //asm_rule = self.src.read_u16le()?;
- self.src.read_skip(2)?;
- _pkt_grp = 0;
- }
- let flags = self.src.read_byte()?;
- let hdr_size = self.src.tell() - pkt_start;
-//println!("packet @{:X} size {} for {} ts {} grp {} flags {:X}", pkt_start, len, str_no, ts, _pkt_grp, flags);
- self.cur_packet += 1;
-
- let payload_size = len - (hdr_size as usize);
-
- let sr = self.str_ids.iter().position(|x| *x == str_no);
- if sr.is_none() {
-//println!("stream {} not found", str_no);
- self.src.read_skip(payload_size)?;
- return Err(DemuxerError::InvalidData);
- }
- let str_id = sr.unwrap();
- let streamres = strmgr.get_stream_by_id(str_no as u32);
- if streamres.is_none() {
- self.src.read_skip(payload_size)?;
- continue;
- }
- let stream = streamres.unwrap();
-//println!(" stream {}", str_id);
- if strmgr.is_ignored_id(str_no as u32) {
- self.src.read_skip(payload_size)?;
- continue;
- }
- //todo skip unwanted packet
- let keyframe = (flags & KEYFRAME_FLAG) != 0;
-
- let result = match self.streams[str_id] {
- RMStreamType::Video(ref mut vstr) => {
-
- let pos = self.src.tell();
- let b0 = self.src.read_byte()?;
- match b0 >> 6 {
- 0 => { // partial frame
- let b1 = self.src.read_byte()?;
- let hdr1 = ((b0 as u16) << 8) | (b1 as u16);
- let num_pkts = ((hdr1 >> 7) & 0x7F) as usize;
- let packet_num = hdr1 & 0x7F;
- let (_, frame_size) = read_14or30(self.src)?;
- let (_, off) = read_14or30(self.src)?;
- let seq_no = self.src.read_byte()?;
-//println!(" mode 0 pkt {}/{} off {}/{} seq {}", packet_num, num_pkts, off, frame_size, seq_no);
- let hdr_skip = (self.src.tell() - pos) as usize;
-
- let slice_size = (payload_size - hdr_skip) as usize;
- self.slice_buf.resize(slice_size, 0);
- self.src.read_buf(self.slice_buf.as_mut_slice())?;
- if packet_num == 1 {
- vstr.start_slice(num_pkts, frame_size as usize, self.slice_buf.as_slice());
- } else {
- vstr.add_slice(packet_num as usize, self.slice_buf.as_slice());
- }
- if (packet_num as usize) < num_pkts {
- continue;
- }
- //todo: check if full frame is received
- let (tb_num, tb_den) = stream.get_timebase();
- let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den);
- let pkt = NAPacket::new(stream, ts, keyframe, vstr.get_frame_data());
- Ok(pkt)
- },
- 1 => { // whole frame
- let seq_no = self.src.read_byte()?;
-//println!(" mode 1 seq {}", seq_no);
- read_video_buf(self.src, stream, ts, keyframe, payload_size - 2)
- },
- 2 => { // last partial frame
- let b1 = self.src.read_byte()?;
- let hdr1 = ((b0 as u16) << 8) | (b1 as u16);
- let num_pkts = ((hdr1 >> 7) & 0x7F) as usize;
- let packet_num = hdr1 & 0x7F;
- let (_, frame_size) = read_14or30(self.src)?;
- let (_, tail_size) = read_14or30(self.src)?;
- let seq_no = self.src.read_byte()?;
-//println!(" mode 2 pkt {}/{} tail {}/{} seq {}", packet_num, num_pkts, tail_size, frame_size, seq_no);
- self.slice_buf.resize(tail_size as usize, 0);
- self.src.read_buf(self.slice_buf.as_mut_slice())?;
- if packet_num == 1 && frame_size == tail_size {
- vstr.start_slice(num_pkts, frame_size as usize, self.slice_buf.as_slice());
- } else {
- vstr.add_slice(packet_num as usize, self.slice_buf.as_slice());
- }
-
- while self.src.tell() < pos + (payload_size as u64) {
- let res = read_multiple_frame(self.src, stream.clone(), false, false);
- if res.is_err() { break; }
- self.queued_pkts.push(res.unwrap());
- }
- self.queued_pkts.reverse();
- let (tb_num, tb_den) = stream.get_timebase();
- let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den);
- let pkt = NAPacket::new(stream, ts, keyframe, vstr.get_frame_data());
- Ok(pkt)
- },
- _ => { // multiple frames
-//println!(" mode 3");
- let res = read_multiple_frame(self.src, stream.clone(), keyframe, true);
- if res.is_err() { return res; }
- while self.src.tell() < pos + (payload_size as u64) {
- let res = read_multiple_frame(self.src, stream.clone(), false, false);
- if res.is_err() { break; }
- self.queued_pkts.push(res.unwrap());
- }
- self.queued_pkts.reverse();
- res
- },
- }
- },
- RMStreamType::Audio(ref mut astr) => {
- let ret = astr.read_apackets(&mut self.queued_pkts, &mut self.src, stream, ts, keyframe, payload_size);
- if let Err(DemuxerError::TryAgain) = ret {
- continue;
- }
- ret
- },
- _ => {
-// self.src.read_skip(payload_size)?;
- Err(DemuxerError::InvalidData)
- },
- };
- return result;
- }
- }
-
- #[allow(unused_variables)]
- fn seek(&mut self, time: u64) -> DemuxerResult<()> {
- Err(NotImplemented)
- }
-}
-
-fn read_chunk(src: &mut ByteReader) -> DemuxerResult<(u32, u32, u16)> {
- let id = src.read_u32be()?;
-if id == 0 { return Ok((0, 0, 0)); }
- let size = src.read_u32be()?;
-if size == 0 {
- let ver = src.read_u16be()?;
- validate!(ver <= 1);
- return Ok((id, 0x0FFFFFFF, ver));
-}
- validate!(size >= 10);
- let ver = src.read_u16be()?;
- validate!(ver <= 1);
- Ok((id, size, ver))
-}
-
-#[derive(Clone,Copy,Debug)]
-struct InterleaveInfo {
- id: u32,
- factor: u16,
- block_size: u16,
- frame_size: u16,
-}
-
-#[derive(Clone,Copy,Debug)]
-struct RealAudioInfo {
- fcc: u32,
- sample_rate: u32,
- sample_size: u16,
- flavor: u16,
- channels: u16,
- channel_mask: u32,
- granularity: u32,
- bytes_per_minute: u32,
- total_bytes: u32,
- edata_size: u32,
- ileave_info: Option<InterleaveInfo>
-}
-
-fn skip_ra_metadata(src: &mut ByteReader) -> DemuxerResult<()> {
- let title_len = src.read_byte()? as usize;
- src.read_skip(title_len)?;
- let author_len = src.read_byte()? as usize;
- src.read_skip(author_len)?;
- let copywrong_len = src.read_byte()? as usize;
- src.read_skip(copywrong_len)?;
- let comment_len = src.read_byte()? as usize;
- src.read_skip(comment_len)?;
- Ok(())
-}
-
-#[allow(unused_variables)]
-fn parse_aformat3(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> {
- let start = src.tell();
- let header_len = src.read_u16be()?;
- validate!(header_len >= 24);
- let flavor = src.read_u16be()?;
- let granularity = src.read_u32be()?;
- let bytes_per_minute = src.read_u32be()?;
- let total_bytes = src.read_u32be()?;
-
- skip_ra_metadata(src)?;
-
- let _can_copy = src.read_byte()?;
- let fcc_len = src.read_byte()?;
- validate!(fcc_len == 4);
- let fcc = src.read_u32be()?;
-
- let end = src.tell();
- validate!(end - start <= (header_len as u64) + 2);
-
- Ok(RealAudioInfo {
- fcc: fcc, flavor: flavor,
- sample_rate: 8000, sample_size: 16, channels: 1, channel_mask: 0,
- granularity: granularity, bytes_per_minute: bytes_per_minute,
- total_bytes: total_bytes, edata_size: 0,
- ileave_info: None,
- })
-}
-
-#[allow(unused_variables)]
-fn parse_aformat4(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> {
- let start = src.tell();
- src.read_skip(2)?; // zeroes
- let id = src.read_u32be()?;
- validate!(id == mktag!(b".ra4"));
- let data_size = src.read_u32be()?;
- let _ver4 = src.read_u16be()?; // should be 4
- let header_size = src.read_u32be()?;
- let flavor = src.read_u16be()?;
- let granularity = src.read_u32be()?;
- let total_bytes = src.read_u32be()?;
- let bytes_per_minute = src.read_u32be()?;
- let _bytes_per_minute2 = src.read_u32be()?;
- let ileave_factor = src.read_u16be()?;
- let ileave_block_size = src.read_u16be()?;
- let _user_data = src.read_u16be()?;
- let sample_rate = src.read_u32be()?;
- let sample_size = src.read_u32be()?;
- let channels = src.read_u16be()?;
- let interleaver_id_len = src.read_byte()?;
- validate!(interleaver_id_len == 4);
- let interleaver_id = src.read_u32be()?;
- let fcc_len = src.read_byte()?;
- validate!(fcc_len == 4);
- let fcc = src.read_u32be()?;
- let is_interleaved = src.read_byte()?;
- let _can_copy = src.read_byte()?;
- let _stream_type = src.read_byte()?;
-
- skip_ra_metadata(src)?;
-
- let end = src.tell();
- validate!(end - start <= (header_size as u64) + 10);
-
- let ileave_info = if is_interleaved != 0 {
- Some(InterleaveInfo {
- id: interleaver_id, factor: ileave_factor, block_size: granularity as u16,
- frame_size: ileave_block_size,
- })
- } else {
- None
- };
-
- Ok(RealAudioInfo {
- fcc: fcc, flavor: flavor,
- sample_rate: sample_rate, sample_size: sample_size as u16, channels: channels, channel_mask: 0,
- granularity: granularity, bytes_per_minute: bytes_per_minute,
- total_bytes: total_bytes & 0xFFFFFF, edata_size: 0,
- ileave_info: ileave_info,
- })
-}
-
-#[allow(unused_variables)]
-fn parse_aformat5(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> {
- let start = src.tell();
- src.read_skip(2)?; // zeroes
- let id = src.read_u32be()?;
- validate!(id == mktag!(b".ra5"));
- let data_size = src.read_u32be()?;
- let _ver5 = src.read_u16be()?; // should be 5
- let header_size = src.read_u32be()?;
- let flavor = src.read_u16be()?;
- let granularity = src.read_u32be()?;
- let total_bytes = src.read_u32be()?;
- let bytes_per_minute = src.read_u32be()?;
- let _bytes_per_minute2 = src.read_u32be()?;
- let ileave_factor = src.read_u16be()?;
- let frame_size = src.read_u16be()?;
- let ileave_block_size = src.read_u16be()?;
- let user_data = src.read_u32be()?;
- let _sample_rate1 = src.read_u16be()?;
- let sample_rate = src.read_u32be()?;
- let sample_size = src.read_u32be()?;
- let channels = src.read_u16be()?;
- let interleaver_id = src.read_u32be()?;
- let fcc = src.read_u32be()?;
- let is_interleaved = src.read_byte()?;
- let _can_copy = src.read_byte()?;
- let _stream_type = src.read_byte()?;
- let has_ileave_pattern = src.read_byte()?;
- if has_ileave_pattern != 0 {
-unimplemented!("ra5 interleave pattern");
- }
- let edata_size = src.read_u32be()?;
-
- let end = src.tell();
- validate!(end - start <= (header_size as u64) + 10);
-// src.read_skip(((end - start) as usize) - (header_size as usize) - 10)?;
-
- let ileave_info = if is_interleaved != 0 {
- Some(InterleaveInfo {
- id: interleaver_id, factor: ileave_factor, block_size: ileave_block_size, frame_size: frame_size,
- })
- } else {
- None
- };
-
- Ok(RealAudioInfo {
- fcc: fcc, flavor: flavor,
- sample_rate: sample_rate, sample_size: sample_size as u16, channels: channels, channel_mask: 0,
- granularity: granularity, bytes_per_minute: bytes_per_minute,
- total_bytes: total_bytes & 0xFFFFFF, edata_size: edata_size,
- ileave_info: ileave_info,
- })
-}
-
-const RMVB_HDR_SIZE: u32 = 18;
-const RMVB_PROP_SIZE: u32 = 50;
-const KEYFRAME_FLAG: u8 = 0x02;
-
-impl<'a> RealMediaDemuxer<'a> {
- fn new(io: &'a mut ByteReader<'a>) -> Self {
- RealMediaDemuxer {
- src: io,
- data_pos: 0,
- num_packets: 0,
- cur_packet: 0,
- streams: Vec::new(),
- str_ids: Vec::new(),
- queued_pkts: Vec::new(),
- slice_buf: Vec::new(),
- }
- }
-#[allow(unused_variables)]
- fn read_header(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> {
- let (id, size, ver) = read_chunk(self.src)?;
- validate!(id == mktag!(b".RMF"));
- validate!(size >= RMVB_HDR_SIZE);
- let fver = self.src.read_u32be()?;
- validate!(fver <= 1);
- let num_hdr = self.src.read_u32be()? as usize;
- validate!(num_hdr >= 1);
- if size > RMVB_HDR_SIZE {
- self.src.read_skip((size - RMVB_HDR_SIZE) as usize)?;
- }
-
- let (id, size, ver) = read_chunk(self.src)?;
- validate!(size >= RMVB_PROP_SIZE);
- validate!(ver == 0);
- let maxbr = self.src.read_u32be()?;
- let avgbr = self.src.read_u32be()?;
- let maxps = self.src.read_u32be()?;
- let avgps = self.src.read_u32be()?;
- let num_pkt = self.src.read_u32be()? as usize;
- let duration = self.src.read_u32be()?;
- let preroll = self.src.read_u32be()?;
- let idx_off = self.src.read_u32be()?;
- let data_off = self.src.read_u32be()?;
- let num_streams = self.src.read_u16be()? as usize;
- let flags = self.src.read_u16be()?;
- if size > RMVB_PROP_SIZE {
- self.src.read_skip((size - RMVB_PROP_SIZE) as usize)?;
- }
-
- for _ in 0..num_hdr {
- if self.src.is_eof() {
- //warn maybe?
- break;
- }
- let res = self.parse_chunk(strmgr);
- match res {
- Ok(last) => { if last { break; } },
- Err(DemuxerError::IOError) => { break; },
- Err(etype) => { return Err(etype); },
- };
- }
-//println!("now @ {:X} / {}", self.src.tell(), self.data_pos);
- validate!(self.data_pos > 0);
- self.src.seek(SeekFrom::Start(self.data_pos))?;
- let num_packets = self.src.read_u32be()?;
- let next_data_hdr = self.src.read_u32be()?;
- self.num_packets = if num_packets > 0 { num_packets } else { 0xFFFFFF };
- self.cur_packet = 0;
- Ok(())
- }
- fn parse_chunk(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<bool> {
- let (id, size, ver) = read_chunk(self.src)?;
- let end_pos = self.src.tell() - 10 + (size as u64);
-
- validate!(ver == 0);
- if id == mktag!(b"CONT") { self.parse_content_desc()?; }
- else if id == mktag!(b"MDPR") { self.parse_mdpr(strmgr)?; }
- else if id == mktag!(b"DATA") { if self.data_pos == 0 { self.data_pos = self.src.tell(); } }
- else if id == mktag!(b"INDX") { /* do nothing for now */ }
- else if id == 0 { return Ok(true); }
- else { println!("unknown chunk type {:08X}", id); }
-
- let cpos = self.src.tell();
- if cpos < end_pos {
- self.src.read_skip((end_pos - cpos) as usize)?;
- }
- Ok(false)
- }
-#[allow(unused_variables)]
- fn parse_content_desc(&mut self) -> DemuxerResult<()> {
- let title_len = self.src.read_u16be()? as usize;
- self.src.read_skip(title_len)?;
- let author_len = self.src.read_u16be()? as usize;
- self.src.read_skip(author_len)?;
- let copywrong_len = self.src.read_u16be()? as usize;
- self.src.read_skip(copywrong_len)?;
- let comment_len = self.src.read_u16be()? as usize;
- self.src.read_skip(comment_len)?;
- Ok(())
- }
-#[allow(unused_variables)]
- fn parse_mdpr(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> {
- let stream_no = self.src.read_u16be()?;
-//todo check stream_no for duplicates
- let maxbr = self.src.read_u32be()?;
- let avgbr = self.src.read_u32be()?;
- let maxps = self.src.read_u32be()?;
- let avgps = self.src.read_u32be()?;
- let start = self.src.read_u32be()?;
- let preroll = self.src.read_u32be()?;
- let duration = self.src.read_u32be()?;
- let sname_size = self.src.read_byte()? as usize;
- let sname = read_string_size(self.src, sname_size)?;
-//println!("str #{} sname = {} pkts {}/{} start {} preroll {}", stream_no, sname, maxps, avgps, start, preroll);
- let mime_size = self.src.read_byte()? as usize;
- let mime = read_string_size(self.src, mime_size)?;
-//println!("mime = {}", mime);
- let edata_size = self.src.read_u32be()? as usize;
- let edata: Option<Vec<u8>> = if edata_size == 0 { None } else {
- let mut edvec: Vec<u8> = Vec::with_capacity(edata_size);
- edvec.resize(edata_size, 0);
- self.src.read_buf(&mut edvec)?;
- Some(edvec)
- };
- self.str_ids.push(stream_no);
- if edata_size > 8 {
- if let Some(edata_) = edata {
- let mut mr = MemoryReader::new_read(edata_.as_slice());
- let mut src = ByteReader::new(&mut mr);
-
- let tag = src.read_u32be()?;
- let tag2 = src.peek_u32be()?;
-//println!("tag1 {:X} tag2 {:X}", tag, tag2);
- if tag == mktag!('.', 'r', 'a', 0xFD) {
- let ver = src.read_u16be()?;
- let ainfo = match ver {
- 3 => {
- parse_aformat3(&mut src)?
- },
- 4 => {
- parse_aformat4(&mut src)?
- },
- 5 => {
- parse_aformat5(&mut src)?
- },
- _ => {
- println!("unknown version {}", ver);
- return Err(DemuxerError::InvalidData);
- },
- };
-println!(" got ainfo {:?}", ainfo);
- let cname = find_codec_name(RM_AUDIO_CODEC_REGISTER, ainfo.fcc);
- let blk_size = if ainfo.fcc != mktag!(b"sipr") {
- ainfo.granularity as usize
- } else {
- validate!(ainfo.flavor <= 3);
- RM_SIPRO_BLOCK_SIZES[ainfo.flavor as usize]
- };
- let srate = ainfo.sample_rate;
- let soniton = NASoniton::new(ainfo.sample_size as u8, SONITON_FLAG_SIGNED);
- let ahdr = NAAudioInfo::new(srate, ainfo.channels as u8, soniton, blk_size);
- let extradata = if ainfo.edata_size == 0 {
- None
- } else {
- let eslice = &edata_[(src.tell() as usize)..];
- Some(eslice.to_vec())
- };
- let nainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), extradata);
- let res = strmgr.add_stream(NAStream::new(StreamType::Audio, stream_no as u32, nainfo, 1, srate));
- if res.is_none() { return Err(MemoryError); }
-
- let astr = RMAudioStream::new(ainfo.ileave_info);
- self.streams.push(RMStreamType::Audio(astr));
- } else if ((tag2 == mktag!('V', 'I', 'D', 'O')) || (tag2 == mktag!('I', 'M', 'A', 'G'))) && ((tag as usize) <= edata_size) {
- src.read_skip(4)?;
- let fcc = src.read_u32be()?;
- let width = src.read_u16be()? as usize;
- let height = src.read_u16be()? as usize;
- let bpp = src.read_u16be()?;
- let pad_w = src.read_u16be()?;
- let pad_h = src.read_u16be()?;
- let fps;
- if tag2 == mktag!('V', 'I', 'D', 'O') {
- fps = src.read_u32be()?;
- } else {
- fps = 0x10000;
- }
- let extradata: Option<Vec<u8>>;
- if src.left() > 0 {
- let eslice = &edata_[(src.tell() as usize)..];
- extradata = Some(eslice.to_vec());
- } else {
- extradata = None;
- }
- let cname = find_codec_name(RM_VIDEO_CODEC_REGISTER, fcc);
-
- let vhdr = NAVideoInfo::new(width, height, false, RGB24_FORMAT);
- let vinfo = NACodecInfo::new(cname, NACodecTypeInfo::Video(vhdr), extradata);
- let res = strmgr.add_stream(NAStream::new(StreamType::Video, stream_no as u32, vinfo, 0x10000, fps));
- if res.is_none() { return Err(DemuxerError::MemoryError); }
-
- let vstr = RMVideoStream::new();
- self.streams.push(RMStreamType::Video(vstr));
- } else if tag == mktag!(b"LSD:") {
- let extradata = Some(edata_.to_vec());
-
- src.read_skip(4)?; //version
- let channels = src.read_u16be()?;
- let samp_size = src.read_u16be()?;
- let sample_rate = src.read_u32be()?;
-
- println!("LSD sr {}, {} ch", sample_rate, channels);
- let soniton = NASoniton::new(samp_size as u8, SONITON_FLAG_SIGNED);
- let ahdr = NAAudioInfo::new(sample_rate, channels as u8, soniton, 1);
- let nainfo = NACodecInfo::new("ralf", NACodecTypeInfo::Audio(ahdr), extradata);
- let res = strmgr.add_stream(NAStream::new(StreamType::Audio, stream_no as u32, nainfo, 1, sample_rate));
- if res.is_none() { return Err(MemoryError); }
- let astr = RMAudioStream::new(None);
- self.streams.push(RMStreamType::Audio(astr));
- } else {
- self.streams.push(RMStreamType::Logical);
- }
- }
- } else {
- self.streams.push(RMStreamType::Unknown);
- }
-
- Ok(())
- }
-/*#[allow(unused_variables)]
- fn read_pkt_header(&mut self) -> DemuxerResult<()> {
- let ver = self.src.read_u16be()?;
- validate!(ver <= 1);
- let str_no = self.src.read_u16be()?;
- let timestamp = self.src.read_u32be()?;
- if ver == 0 {
- let pkt_group = self.src.read_byte()?;
- let pkt_flags = self.src.read_byte()?;
- } else {
- let asm_rule = self.src.read_u16be()?;
- let asm_flags = self.src.read_byte()?;
- }
- Ok(())
- }*/
-}
-
-fn read_string(src: &mut ByteReader) -> DemuxerResult<String> {
- let mut vec: Vec<u8> = Vec::new();
- loop {
- let c = src.read_byte()?;
- if c == 0 { break; }
- vec.push(c);
- }
- let str = String::from_utf8(vec);
- if str.is_ok() {
- Ok(str.unwrap())
- } else {
- Ok(String::new())
- }
-}
-
-fn read_string_size(src: &mut ByteReader, size: usize) -> DemuxerResult<String> {
- let mut vec: Vec<u8> = Vec::new();
- for _ in 0..size {
- let c = src.read_byte()?;
- vec.push(c);
- }
- let str = String::from_utf8(vec);
- if str.is_ok() {
- Ok(str.unwrap())
- } else {
- Ok(String::new())
- }
-}
-
-#[allow(dead_code)]
-#[allow(unused_variables)]
-fn parse_rm_stream(io: &mut ByteReader) -> DemuxerResult<NAStream> {
- let mimetype = read_string(io)?;
- let strname = read_string(io)?;
- let strnum = io.read_u32le()?;
- let maxbr = io.read_u32le()?;
- let avgbr = io.read_u32le()?;
- let maxsize = io.read_u32le()?;
- let avgsize = io.read_u32le()?;
- let duration = io.read_u32le()?;
- let preroll = io.read_u32le()?;
- let start = io.read_u32le()?;
- let edatalen = io.read_u32le()? as usize;
- let mut edata: Vec<u8> = Vec::with_capacity(edatalen);
- edata.resize(edatalen, 0);
- io.read_buf(&mut edata)?;
- let numprops = io.read_u32le()? as usize;
- //read properties
- unimplemented!();
-}
-
-#[allow(dead_code)]
-#[allow(unused_variables)]
-fn read_ra_vbr_stream(io: &mut ByteReader) -> DemuxerResult<NAPacket> {
- let hdrsizesize = io.read_u16le()?;
- let num_entries = (hdrsizesize / 16) as usize;
- let mut sizes: Vec<usize> = Vec::with_capacity(num_entries);
- for _ in 0..num_entries {
- let sz = io.read_u16le()? as usize;
- sizes.push(sz);
- }
- for i in 0..num_entries {
-//read packet of sizes[i]
- }
- unimplemented!();
-}
-
-//todo interleavers
-
-//todo opaque data
-
-
-static RM_VIDEO_CODEC_REGISTER: &'static [(&[u8;4], &str)] = &[
- (b"RV10", "realvideo1"),
- (b"RV20", "realvideo2"),
- (b"RVTR", "realvideo2"),
- (b"RV30", "realvideo3"),
- (b"RV40", "realvideo4"),
- (b"CLV1", "clearvideo_rm"),
-];
-
-#[allow(dead_code)]
-static RM_AUDIO_CODEC_REGISTER: &'static [(&[u8;4], &str)] = &[
- (b"lpcJ", "ra14.4"),
- (b"28_8", "ra28.8"),
- (b"cook", "cook"),
- (b"dnet", "ac3"),
- (b"sipr", "sipro"),
- (b"atrc", "atrac3"),
- (b"LSD:", "ralf"),
- (b"raac", "aac"),
- (b"racp", "aac"),
-];
-
-pub struct RealMediaDemuxerCreator { }
-
-impl DemuxerCreator for RealMediaDemuxerCreator {
- fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<DemuxCore<'a> + 'a> {
- Box::new(RealMediaDemuxer::new(br))
- }
- fn get_name(&self) -> &'static str { "realmedia" }
-}
-
-#[cfg(test)]
-mod test {
- use super::*;
- use std::fs::File;
-
- #[test]
- fn test_rm_demux() {
- let mut file =
- File::open("assets/RV/rv10_dnet_640x352_realvideo_encoder_4.0.rm").unwrap();
-// File::open("assets/RV/rv20_cook_640x352_realproducer_plus_8.51.rm").unwrap();
-// File::open("assets/RV/rv20_svt_atrc_640x352_realproducer_plus_8.51.rm").unwrap();
-// File::open("assets/RV/rv30_atrc_384x208_realproducer_plus_8.51.rm").unwrap();
-// File::open("assets/RV/rv30_chroma_drift.rm").unwrap();
-// File::open("assets/RV/rv30_weighted_mc.rm").unwrap();
-// File::open("assets/RV/rv40_weighted_mc.rmvb").unwrap();
-// File::open("assets/RV/rv40_weighted_mc_2.rmvb").unwrap();
-// File::open("assets/RV/clv1_sipr_384x208_realvideo_encoder_4.0.rm").unwrap();
-// File::open("assets/RV/luckynight.rmvb").unwrap();
-// File::open("assets/RV/rv40_ralf.rmvb").unwrap();
- let mut fr = FileReader::new_read(&mut file);
- let mut br = ByteReader::new(&mut fr);
- let mut dmx = RealMediaDemuxer::new(&mut br);
- let mut sm = StreamManager::new();
- dmx.open(&mut sm).unwrap();
-
- loop {
- let pktres = dmx.get_frame(&mut sm);
- if let Err(e) = pktres {
- if e == DemuxerError::EOF { break; }
- panic!("error");
- }
- let pkt = pktres.unwrap();
- println!("Got {}", pkt);
- }
-//panic!("the end");
- }
-}
projects / nihav.git / blobdiff