From bcfeae48693ae98aa504b86e6ced38de0573e302 Mon Sep 17 00:00:00 2001 From: Kostya Shishkov Date: Sun, 13 Aug 2017 12:57:03 +0200 Subject: [PATCH] demuxer: use new interface --- src/demuxers/avi.rs | 67 +++++++++++---------- src/demuxers/gdv.rs | 34 +++++------ src/demuxers/mod.rs | 131 ++++++++++++++++++++++++++++++++++++++---- src/test/dec_video.rs | 6 +- 4 files changed, 168 insertions(+), 70 deletions(-) diff --git a/src/demuxers/avi.rs b/src/demuxers/avi.rs index 9eb9517..bde38da 100644 --- a/src/demuxers/avi.rs +++ b/src/demuxers/avi.rs @@ -43,7 +43,6 @@ struct AVIDemuxer<'a> { src: &'a mut ByteReader<'a>, cur_frame: Vec, num_streams: u8, - dmx: Demuxer, size: usize, movi_size: usize, sstate: StreamState, @@ -59,21 +58,18 @@ enum RIFFTag { struct RIFFParser { tag: RIFFTag, - parse: fn(&mut AVIDemuxer, size: usize) -> DemuxerResult, + parse: fn(&mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult, } -impl<'a> Demux<'a> for AVIDemuxer<'a> { +impl<'a> DemuxCore<'a> for AVIDemuxer<'a> { #[allow(unused_variables)] - fn open(&mut self) -> DemuxerResult<()> { - self.read_header()?; + fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { + self.read_header(strmgr)?; self.opened = true; Ok(()) } - fn get_num_streams(&self) -> usize { self.dmx.get_num_streams() } - fn get_stream(&self, idx: usize) -> Option> { self.dmx.get_stream(idx) } - - fn get_frame(&mut self) -> DemuxerResult { + fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult { if !self.opened { return Err(NoSuchInput); } if self.movi_size == 0 { return Err(EOF); } let mut tag: [u8; 4] = [0; 4]; @@ -101,7 +97,7 @@ impl<'a> Demux<'a> for AVIDemuxer<'a> { return Err(InvalidData); } let stream_no = (tag[0] - b'0') * 10 + (tag[1] - b'0'); - let str = self.dmx.get_stream(stream_no as usize); + let str = strmgr.get_stream(stream_no as usize); if let None = str { return Err(InvalidData); } let stream = str.unwrap(); if size == 0 { @@ -138,11 +134,10 @@ impl<'a> AVIDemuxer<'a> { sstate: StreamState::new(), tb_num: 0, tb_den: 0, - dmx: Demuxer::new() } } - fn parse_chunk(&mut self, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> { + fn parse_chunk(&mut self, strmgr: &mut StreamManager, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> { if csize < 8 { return Err(InvalidData); } if depth > 42 { return Err(InvalidData); } @@ -160,18 +155,18 @@ impl<'a> AVIDemuxer<'a> { for i in 0..CHUNKS.len() { if RIFFTag::Chunk(tag) == CHUNKS[i].tag { - let psize = (CHUNKS[i].parse)(self, size)?; + let psize = (CHUNKS[i].parse)(self, strmgr, size)?; if psize != size { return Err(InvalidData); } if (psize & 1) == 1 { self.src.read_skip(1)?; } return Ok((size + 8, false)); } if RIFFTag::List(tag, ltag) == CHUNKS[i].tag { let mut rest_size = size - 4; - let psize = (CHUNKS[i].parse)(self, rest_size)?; + let psize = (CHUNKS[i].parse)(self, strmgr, rest_size)?; if psize > rest_size { return Err(InvalidData); } rest_size -= psize; while rest_size > 0 { - let (psize, _) = self.parse_chunk(end_tag, rest_size, depth+1)?; + let (psize, _) = self.parse_chunk(strmgr, end_tag, rest_size, depth+1)?; if psize > rest_size { return Err(InvalidData); } rest_size -= psize; if (psize & 1) == 1 { @@ -194,7 +189,7 @@ impl<'a> AVIDemuxer<'a> { return Ok((size + 8, false)); } - fn read_header(&mut self) -> DemuxerResult<()> { + fn read_header(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { let riff_tag = self.src.read_u32be()?; let size = self.src.read_u32le()? as usize; let avi_tag = self.src.read_u32be()?; @@ -204,7 +199,7 @@ impl<'a> AVIDemuxer<'a> { self.size = size; let mut rest_size = size; loop { - let (csz, end) = self.parse_chunk(RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?; + let (csz, end) = self.parse_chunk(strmgr, RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?; if end { self.movi_size = csz - 4; break; } rest_size -= csz; } @@ -244,17 +239,17 @@ fn is_list_tag(tag: u32) -> bool { } #[allow(unused_variables)] -fn parse_hdrl(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { +fn parse_hdrl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult { Ok(0) } #[allow(unused_variables)] -fn parse_strl(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { +fn parse_strl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult { Ok(0) } #[allow(unused_variables)] -fn parse_strh(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { +fn parse_strh(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult { if size < 0x38 { return Err(InvalidData); } let tag = dmx.src.read_u32be()?; //stream type let fcc = dmx.src.read_u32be()?; //handler(fourcc) @@ -291,17 +286,17 @@ fn parse_strh(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { Ok(size) } -fn parse_strf(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { +fn parse_strf(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult { if let None = dmx.sstate.strm_type { return Err(InvalidData); } match dmx.sstate.strm_type.unwrap() { - StreamType::Video => parse_strf_vids(dmx, size), - StreamType::Audio => parse_strf_auds(dmx, size), - _ => parse_strf_xxxx(dmx, size), + StreamType::Video => parse_strf_vids(dmx, strmgr, size), + StreamType::Audio => parse_strf_auds(dmx, strmgr, size), + _ => parse_strf_xxxx(dmx, strmgr, size), } } #[allow(unused_variables)] -fn parse_strf_vids(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { +fn parse_strf_vids(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult { if size < 40 { return Err(InvalidData); } let bi_size = dmx.src.read_u32le()?; if (bi_size as usize) > size { return Err(InvalidData); } @@ -327,14 +322,14 @@ fn parse_strf_vids(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { Some(name) => name, }; let vinfo = NACodecInfo::new(cname, vci, edata); - let res = dmx.dmx.add_stream(NAStream::new(StreamType::Video, dmx.sstate.strm_no as u32, vinfo, dmx.tb_num, dmx.tb_den)); + let res = strmgr.add_stream(NAStream::new(StreamType::Video, dmx.sstate.strm_no as u32, vinfo, dmx.tb_num, dmx.tb_den)); if let None = res { return Err(MemoryError); } dmx.sstate.reset(); Ok(size) } #[allow(unused_variables)] -fn parse_strf_auds(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { +fn parse_strf_auds(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult { if size < 16 { return Err(InvalidData); } let w_format_tag = dmx.src.read_u16le()?; let channels = dmx.src.read_u16le()?; @@ -351,23 +346,23 @@ fn parse_strf_auds(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { Some(name) => name, }; let ainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata); - let res = dmx.dmx.add_stream(NAStream::new(StreamType::Audio, dmx.sstate.strm_no as u32, ainfo, dmx.tb_num, dmx.tb_den)); + let res = strmgr.add_stream(NAStream::new(StreamType::Audio, dmx.sstate.strm_no as u32, ainfo, dmx.tb_num, dmx.tb_den)); if let None = res { return Err(MemoryError); } dmx.sstate.reset(); Ok(size) } -fn parse_strf_xxxx(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { +fn parse_strf_xxxx(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult { let edata = dmx.read_extradata(size)?; let info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata); - let res = dmx.dmx.add_stream(NAStream::new(StreamType::Data, dmx.sstate.strm_no as u32, info, dmx.tb_num, dmx.tb_den)); + let res = strmgr.add_stream(NAStream::new(StreamType::Data, dmx.sstate.strm_no as u32, info, dmx.tb_num, dmx.tb_den)); if let None = res { return Err(MemoryError); } dmx.sstate.reset(); Ok(size) } #[allow(unused_variables)] -fn parse_avih(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { +fn parse_avih(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult { if size < 0x38 { return Err(InvalidData); } let timebase = dmx.src.read_u32le()?; //microsec per frame dmx.src.read_skip(4)?; //max frame size @@ -389,7 +384,8 @@ fn parse_avih(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { Ok(size) } -fn parse_junk(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { +#[allow(unused_variables)] +fn parse_junk(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult { dmx.src.read_skip(size)?; Ok(size) } @@ -397,7 +393,7 @@ fn parse_junk(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult { pub struct AVIDemuxerCreator { } impl DemuxerCreator for AVIDemuxerCreator { - fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box + 'a> { + fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box + 'a> { Box::new(AVIDemuxer::new(br)) } fn get_name(&self) -> &'static str { "avi" } @@ -414,10 +410,11 @@ mod test { let mut fr = FileReader::new_read(&mut file); let mut br = ByteReader::new(&mut fr); let mut dmx = AVIDemuxer::new(&mut br); - dmx.open().unwrap(); + let mut sm = StreamManager::new(); + dmx.open(&mut sm).unwrap(); loop { - let pktres = dmx.get_frame(); + let pktres = dmx.get_frame(&mut sm); if let Err(e) = pktres { if e == DemuxerError::EOF { break; } panic!("error"); diff --git a/src/demuxers/gdv.rs b/src/demuxers/gdv.rs index ed77194..60acda7 100644 --- a/src/demuxers/gdv.rs +++ b/src/demuxers/gdv.rs @@ -19,7 +19,6 @@ struct GremlinVideoDemuxer<'a> { apacked: bool, state: GDVState, pktdta: Vec, - dmx: Demuxer, a_id: Option, v_id: Option, } @@ -50,9 +49,9 @@ const GDV_SIZE_TABLE: &[GDVFixedSizes] = &[ GDVFixedSizes { id: 21, width: 320, height: 240 }, ]; -impl<'a> Demux<'a> for GremlinVideoDemuxer<'a> { +impl<'a> DemuxCore<'a> for GremlinVideoDemuxer<'a> { #[allow(unused_variables)] - fn open(&mut self) -> DemuxerResult<()> { + fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { let src = &mut self.src; let magic = src.read_u32le()?; if magic != 0x29111994 { return Err(DemuxerError::InvalidData); } @@ -85,7 +84,7 @@ impl<'a> Demux<'a> for GremlinVideoDemuxer<'a> { let vhdr = NAVideoInfo::new(width as usize, height as usize, false, PAL8_FORMAT); let vci = NACodecTypeInfo::Video(vhdr); let vinfo = NACodecInfo::new("gdv-video", vci, if edata.len() == 0 { None } else { Some(edata) }); - self.v_id = self.dmx.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 1, fps as u32)); + self.v_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 1, fps as u32)); } if (aflags & 1) != 0 { let channels = if (aflags & 2) != 0 { 2 } else { 1 }; @@ -95,7 +94,7 @@ impl<'a> Demux<'a> for GremlinVideoDemuxer<'a> { let ahdr = NAAudioInfo::new(rate as u32, channels as u8, if depth == 16 { SND_S16_FORMAT } else { SND_U8_FORMAT }, 2); let ainfo = NACodecInfo::new(if packed != 0 { "gdv-audio" } else { "pcm" }, NACodecTypeInfo::Audio(ahdr), None); - self.a_id = self.dmx.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, rate as u32)); + self.a_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, rate as u32)); self.asize = (((rate / fps) * channels * (depth / 8)) >> packed) as usize; self.apacked = (aflags & 8) != 0; @@ -107,18 +106,15 @@ impl<'a> Demux<'a> for GremlinVideoDemuxer<'a> { } #[allow(unused_variables)] - fn get_frame(&mut self) -> DemuxerResult { + fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult { if !self.opened { return Err(DemuxerError::NoSuchInput); } if self.cur_frame >= self.frames { return Err(DemuxerError::EOF); } match self.state { - GDVState::NewFrame if self.asize > 0 => { self.read_achunk() } - _ => { self.read_vchunk() } + GDVState::NewFrame if self.asize > 0 => { self.read_achunk(strmgr) } + _ => { self.read_vchunk(strmgr) } } } - fn get_num_streams(&self) -> usize { self.dmx.get_num_streams() } - fn get_stream(&self, idx: usize) -> Option> { self.dmx.get_stream(idx) } - #[allow(unused_variables)] fn seek(&mut self, time: u64) -> DemuxerResult<()> { if !self.opened { return Err(DemuxerError::NoSuchInput); } @@ -143,20 +139,19 @@ pktdta: Vec::new(), src: io, a_id: None, v_id: None, - dmx: Demuxer::new() } } - fn read_achunk(&mut self) -> DemuxerResult { + fn read_achunk(&mut self, strmgr: &mut StreamManager) -> DemuxerResult { self.state = GDVState::AudioRead; - let str = self.dmx.get_stream(self.a_id.unwrap()).unwrap(); + let str = strmgr.get_stream(self.a_id.unwrap()).unwrap(); let (tb_num, tb_den) = str.get_timebase(); let ts = NATimeInfo::new(Some(self.cur_frame as u64), None, None, tb_num, tb_den); self.src.read_packet(str, ts, true, self.asize) } - fn read_vchunk(&mut self) -> DemuxerResult { - let str = self.dmx.get_stream(self.v_id.unwrap()).unwrap(); + fn read_vchunk(&mut self, strmgr: &mut StreamManager) -> DemuxerResult { + let str = strmgr.get_stream(self.v_id.unwrap()).unwrap(); let mut src = &mut self.src; let magic = src.read_u16be()?; if magic != 0x0513 { return Err(DemuxerError::InvalidData); } @@ -174,7 +169,7 @@ pktdta: Vec::new(), pub struct GDVDemuxerCreator { } impl DemuxerCreator for GDVDemuxerCreator { - fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box + 'a> { + fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box + 'a> { Box::new(GremlinVideoDemuxer::new(br)) } fn get_name(&self) -> &'static str { "gdv" } @@ -191,9 +186,10 @@ mod test { let mut fr = FileReader::new_read(&mut file); let mut br = ByteReader::new(&mut fr); let mut dmx = GremlinVideoDemuxer::new(&mut br); - dmx.open().unwrap(); + let mut sm = StreamManager::new(); + dmx.open(&mut sm).unwrap(); loop { - let pktres = dmx.get_frame(); + let pktres = dmx.get_frame(&mut sm); if let Err(e) = pktres { if (e as i32) == (DemuxerError::EOF as i32) { break; } panic!("error"); diff --git a/src/demuxers/mod.rs b/src/demuxers/mod.rs index aaf92e4..eb75d57 100644 --- a/src/demuxers/mod.rs +++ b/src/demuxers/mod.rs @@ -1,7 +1,7 @@ #[cfg(feature="demuxer_gdv")] -pub mod gdv; +mod gdv; #[cfg(feature="demuxer_avi")] -pub mod avi; +mod avi; use std::rc::Rc; use frame::*; @@ -20,11 +20,9 @@ pub enum DemuxerError { type DemuxerResult = Result; -pub trait Demux<'a> { - fn open(&mut self) -> DemuxerResult<()>; - fn get_num_streams(&self) -> usize; - fn get_stream(&self, idx: usize) -> Option>; - fn get_frame(&mut self) -> DemuxerResult; +pub trait DemuxCore<'a> { + fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()>; + fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult; fn seek(&mut self, time: u64) -> DemuxerResult<()>; } @@ -52,17 +50,28 @@ impl<'a> NAPacketReader for ByteReader<'a> { } } -struct Demuxer { +pub struct StreamManager { streams: Vec>, + ignored: Vec, + no_ign: bool, } -impl Demuxer { - pub fn new() -> Self { Demuxer { streams: Vec::new() } } +impl StreamManager { + pub fn new() -> Self { + StreamManager { + streams: Vec::new(), + ignored: Vec::new(), + no_ign: true, + } + } + pub fn iter(&self) -> StreamIter { StreamIter::new(&self.streams) } + pub fn add_stream(&mut self, stream: NAStream) -> Option { let stream_num = self.streams.len(); let mut str = stream.clone(); str.set_num(stream_num); self.streams.push(Rc::new(str)); + self.ignored.push(false); Some(stream_num) } pub fn get_stream(&self, idx: usize) -> Option> { @@ -72,7 +81,6 @@ impl Demuxer { None } } - #[allow(dead_code)] pub fn get_stream_by_id(&self, id: u32) -> Option> { for i in 0..self.streams.len() { if self.streams[i].get_id() == id { @@ -82,6 +90,98 @@ impl Demuxer { None } pub fn get_num_streams(&self) -> usize { self.streams.len() } + pub fn is_ignored(&self, idx: usize) -> bool { + if self.no_ign { + true + } else if idx < self.ignored.len() { + self.ignored[idx] + } else { + false + } + } + pub fn set_ignored(&mut self, idx: usize) { + if idx < self.ignored.len() { + self.ignored[idx] = true; + self.no_ign = false; + } + } + pub fn set_unignored(&mut self, idx: usize) { + if idx < self.ignored.len() { + self.ignored[idx] = false; + } + } +} + +pub struct StreamIter<'a> { + streams: &'a Vec>, + pos: usize, +} + +impl<'a> StreamIter<'a> { + pub fn new(streams: &'a Vec>) -> Self { + StreamIter { streams: streams, pos: 0 } + } +} + +impl<'a> Iterator for StreamIter<'a> { + type Item = Rc; + + fn next(&mut self) -> Option { + if self.pos >= self.streams.len() { return None; } + let ret = self.streams[self.pos].clone(); + self.pos += 1; + Some(ret) + } +} + +pub struct Demuxer<'a> { + dmx: Box + 'a>, + streams: StreamManager, +} + +impl<'a> Demuxer<'a> { + fn new(dmx: Box + 'a>, str: StreamManager) -> Self { + Demuxer { + dmx: dmx, + streams: str, + } + } + pub fn get_stream(&self, idx: usize) -> Option> { + self.streams.get_stream(idx) + } + pub fn get_stream_by_id(&self, id: u32) -> Option> { + self.streams.get_stream_by_id(id) + } + pub fn get_num_streams(&self) -> usize { + self.streams.get_num_streams() + } + pub fn get_streams(&self) -> StreamIter { + self.streams.iter() + } + pub fn is_ignored_stream(&self, idx: usize) -> bool { + self.streams.is_ignored(idx) + } + pub fn set_ignored_stream(&mut self, idx: usize) { + self.streams.set_ignored(idx) + } + pub fn set_unignored_stream(&mut self, idx: usize) { + self.streams.set_unignored(idx) + } + + pub fn get_frame(&mut self) -> DemuxerResult { + loop { + let res = self.dmx.get_frame(&mut self.streams); + if self.streams.no_ign || res.is_err() { return res; } + let res = res.unwrap(); + let idx = res.get_stream().get_num(); + if !self.is_ignored_stream(idx) { + return Ok(res); + } + } + } + pub fn seek(&mut self, time: u64) -> DemuxerResult<()> { + self.dmx.seek(time) + } } impl From for DemuxerError { @@ -91,7 +191,7 @@ impl From for DemuxerError { ///The structure used to create demuxers. pub trait DemuxerCreator { /// Create new demuxer instance that will use `ByteReader` source as an input. - fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box + 'a>; + fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box + 'a>; /// Get the name of current demuxer creator. fn get_name(&self) -> &'static str; } @@ -111,3 +211,10 @@ pub fn find_demuxer(name: &str) -> Option<&DemuxerCreator> { } None } + +pub fn create_demuxer<'a>(dmxcr: &DemuxerCreator, br: &'a mut ByteReader<'a>) -> DemuxerResult> { + let mut dmx = dmxcr.new_demuxer(br); + let mut str = StreamManager::new(); + dmx.open(&mut str)?; + Ok(Demuxer::new(dmx, str)) +} diff --git a/src/test/dec_video.rs b/src/test/dec_video.rs index 8576b11..4094d3a 100644 --- a/src/test/dec_video.rs +++ b/src/test/dec_video.rs @@ -108,8 +108,7 @@ pub fn test_file_decoding(demuxer: &str, name: &str, limit: Option, let mut file = File::open(name).unwrap(); let mut fr = FileReader::new_read(&mut file); let mut br = ByteReader::new(&mut fr); - let mut dmx = dmx_f.new_demuxer(&mut br); - dmx.open().unwrap(); + let mut dmx = create_demuxer(dmx_f, &mut br).unwrap(); let mut decs: Vec>> = Vec::new(); for i in 0..dmx.get_num_streams() { @@ -159,8 +158,7 @@ pub fn test_decode_audio(demuxer: &str, name: &str, limit: Option, audio_pf let mut file = File::open(name).unwrap(); let mut fr = FileReader::new_read(&mut file); let mut br = ByteReader::new(&mut fr); - let mut dmx = dmx_f.new_demuxer(&mut br); - dmx.open().unwrap(); + let mut dmx = create_demuxer(dmx_f, &mut br).unwrap(); let mut decs: Vec>> = Vec::new(); for i in 0..dmx.get_num_streams() { -- 2.30.2