nihav-commonfmt/src/muxers/avi.rs

   1 use nihav_core::muxers::*;
   2 use nihav_registry::register::*;
   3
   4 #[derive(Clone,Copy)]
   5 struct IdxEntry {
   6     stream:     u32,
   7     stype:      StreamType,
   8     key:        bool,
   9     pos:        u32,
  10     len:        u32,
  11 }
  12
  13 #[derive(Clone,Copy)]
  14 struct AVIStream {
  15     strh_pos:   u64,
  16     nframes:    u32,
  17     is_video:   bool,
  18     max_size:   u32,
  19 }
  20
  21 struct AVIMuxer<'a> {
  22     bw:             &'a mut ByteWriter<'a>,
  23     index:          Vec<IdxEntry>,
  24     video_str:      Option<usize>,
  25     video_id:       u32,
  26     data_pos:       u64,
  27     stream_info:    Vec<AVIStream>,
  28     pal_pos:        Vec<u32>,
  29 }
  30
  31 impl<'a> AVIMuxer<'a> {
  32     fn new(bw: &'a mut ByteWriter<'a>) -> Self {
  33         Self {
  34             bw,
  35             index:          Vec::new(),
  36             video_str:      None,
  37             video_id:       0,
  38             data_pos:       0,
  39             stream_info:    Vec::with_capacity(2),
  40             pal_pos:        Vec::with_capacity(2),
  41         }
  42     }
  43 }
  44
  45 fn patch_size(bw: &mut ByteWriter, pos: u64) -> MuxerResult<()> {
  46     let size = bw.tell() - pos;
  47     bw.seek(SeekFrom::Current(-((size + 4) as i64)))?;
  48     bw.write_u32le(size as u32)?;
  49     bw.seek(SeekFrom::End(0))?;
  50     Ok(())
  51 }
  52
  53 fn write_chunk_hdr(bw: &mut ByteWriter, stype: StreamType, str_no: u32) -> MuxerResult<()> {
  54     bw.write_byte(b'0' + ((str_no / 10) as u8))?;
  55     bw.write_byte(b'0' + ((str_no % 10) as u8))?;
  56     match stype {
  57         StreamType::Video => { bw.write_buf(b"dc")?; },
  58         StreamType::Audio => { bw.write_buf(b"wb")?; },
  59         StreamType::Subtitles => { bw.write_buf(b"tx")?; },
  60         _ => return Err(MuxerError::UnsupportedFormat),
  61     };
  62     Ok(())
  63 }
  64
  65 impl<'a> MuxCore<'a> for AVIMuxer<'a> {
  66     #[allow(clippy::unreadable_literal)]
  67     #[allow(clippy::cast_lossless)]
  68     fn create(&mut self, strmgr: &StreamManager) -> MuxerResult<()> {
  69         if strmgr.get_num_streams() == 0 {
  70             return Err(MuxerError::InvalidArgument);
  71         }
  72         if strmgr.get_num_streams() > 99 {
  73             return Err(MuxerError::UnsupportedFormat);
  74         }
  75         for (str_no, strm) in strmgr.iter().enumerate() {
  76             if strm.get_media_type() == StreamType::Video {
  77                 self.video_str = Some(str_no);
  78                 self.video_id  = strm.id;
  79                 break;
  80             }
  81         }
  82         let (vinfo, tb_num, tb_den) = if let Some(str_id) = self.video_str {
  83                 let vstr = strmgr.get_stream(str_id).unwrap();
  84                 (vstr.get_info(), vstr.tb_num, vstr.tb_den)
  85             } else {
  86                 (NACodecInfo::new_dummy(), 0, 1)
  87             };
  88         let hdrl_pos = self.bw.tell() + 20;
  89         self.bw.write_buf(b"RIFF\0\0\0\0AVI LIST\0\0\0\0hdrlavih")?;
  90         self.bw.write_u32le(56)?; // avih size
  91         let ms_per_frame = NATimeInfo::ts_to_time(1, 1000000, tb_num, tb_den);
  92         self.bw.write_u32le(ms_per_frame as u32)?;
  93         self.bw.write_u32le(0)?; // max transfer rate
  94         self.bw.write_u32le(0)?; // padding granularity
  95         self.bw.write_u32le(0)?; // flags
  96         self.bw.write_u32le(0)?; // total frames
  97         self.bw.write_u32le(0)?; // initial frames
  98         self.bw.write_u32le(strmgr.get_num_streams() as u32)?;
  99         self.bw.write_u32le(0)?; // suggested buffer size
 100         if let NACodecTypeInfo::Video(ref vinfo) = vinfo.get_properties() {
 101             self.bw.write_u32le(vinfo.width as u32)?;
 102             self.bw.write_u32le(vinfo.height as u32)?;
 103         } else {
 104             self.bw.write_u32le(0)?;
 105             self.bw.write_u32le(0)?;
 106         }
 107         self.bw.write_u32le(0)?; // reserved
 108         self.bw.write_u32le(0)?; // reserved
 109         self.bw.write_u32le(0)?; // reserved
 110         self.bw.write_u32le(0)?; // reserved
 111
 112         self.pal_pos.clear();
 113         self.pal_pos.resize(strmgr.get_num_streams(), 0);
 114         for (strno, strm) in strmgr.iter().enumerate() {
 115             let strl_pos = self.bw.tell() + 8;
 116             self.bw.write_buf(b"LIST\0\0\0\0strlstrh")?;
 117             self.bw.write_u32le(56)?; // strh size
 118
 119             match strm.get_media_type() {
 120                 StreamType::Video => {
 121                     self.bw.write_buf(b"vids")?;
 122                     let fcc = find_avi_fourcc(strm.get_info().get_name());
 123                     if fcc.is_none() {
 124                         return Err(MuxerError::UnsupportedFormat);
 125                     }
 126                     self.bw.write_buf(&fcc.unwrap_or([0; 4]))?;
 127                     let vinfo = strm.get_info().get_properties().get_video_info().unwrap();
 128                     if vinfo.width >= (1 << 16) || vinfo.height >= (1 << 16) {
 129                         return Err(MuxerError::UnsupportedFormat);
 130                     }
 131                 },
 132                 StreamType::Audio => {
 133                     self.bw.write_buf(b"auds")?;
 134                     self.bw.write_u32le(0)?;
 135                 },
 136                 StreamType::Subtitles => {
 137                     self.bw.write_buf(b"txts")?;
 138                     self.bw.write_u32le(0)?;
 139                 },
 140                 _ => return Err(MuxerError::UnsupportedFormat),
 141             };
 142             self.stream_info.push(AVIStream {
 143                     strh_pos:   self.bw.tell(),
 144                     is_video:   strm.get_media_type() == StreamType::Video,
 145                     nframes:    0,
 146                     max_size:   0,
 147                 });
 148
 149             self.bw.write_u32le(0)?; // flags
 150             self.bw.write_u16le(0)?; // priority
 151             self.bw.write_u16le(0)?; // language
 152             self.bw.write_u32le(0)?; // initial frames
 153             self.bw.write_u32le(strm.tb_num)?;
 154             self.bw.write_u32le(strm.tb_den)?;
 155             self.bw.write_u32le(0)?; // start
 156             self.bw.write_u32le(0)?; // length
 157             self.bw.write_u32le(0)?; // suggested buffer size
 158             self.bw.write_u32le(0)?; // quality
 159             self.bw.write_u32le(0)?; // sample_size
 160             self.bw.write_u16le(0)?; // x
 161             self.bw.write_u16le(0)?; // y
 162             self.bw.write_u16le(0)?; // w
 163             self.bw.write_u16le(0)?; // h
 164
 165             self.bw.write_buf(b"strf")?;
 166             self.bw.write_u32le(0)?;
 167             let strf_pos = self.bw.tell();
 168             match strm.get_media_type() {
 169                 StreamType::Video => {
 170                     let vinfo = strm.get_info().get_properties().get_video_info().unwrap();
 171                     let hdr_pos = self.bw.tell();
 172                     self.bw.write_u32le(0)?;
 173                     self.bw.write_u32le(vinfo.width as u32)?;
 174                     self.bw.write_u32le(vinfo.height as u32)?;
 175                     if !vinfo.format.palette {
 176                         self.bw.write_u16le(vinfo.format.components as u16)?;
 177                         self.bw.write_u16le(vinfo.format.get_total_depth() as u16)?;
 178                     } else {
 179                         self.bw.write_u16le(1)?;
 180                         self.bw.write_u16le(8)?;
 181                     }
 182                     let fcc = find_avi_fourcc(strm.get_info().get_name());
 183                     if fcc.is_none() {
 184                         return Err(MuxerError::UnsupportedFormat);
 185                     }
 186                     self.bw.write_buf(&fcc.unwrap_or([0; 4]))?;
 187                     self.bw.write_u32le(0)?; // image size
 188                     self.bw.write_u32le(0)?; // x dpi
 189                     self.bw.write_u32le(0)?; // y dpi
 190                     if vinfo.format.palette {
 191                         self.bw.write_u32le(256)?; // total colors
 192                         self.bw.write_u32le(0)?; // important colors
 193                         self.pal_pos[strno] = self.bw.tell() as u32;
 194                         for _ in 0..256 {
 195                             self.bw.write_u32le(0)?;
 196                         }
 197                     } else {
 198                         self.bw.write_u32le(0)?; // total colors
 199                         self.bw.write_u32le(0)?; // important colors
 200                     }
 201                     if let Some(ref edata) = strm.get_info().get_extradata() {
 202                         self.bw.write_buf(edata.as_slice())?;
 203                     }
 204                     let bisize = self.bw.tell() - hdr_pos;
 205                     self.bw.seek(SeekFrom::Current(-(bisize as i64)))?;
 206                     self.bw.write_u32le(bisize as u32)?;
 207                     self.bw.seek(SeekFrom::End(0))?;
 208                 },
 209                 StreamType::Audio => {
 210                     let ainfo = strm.get_info().get_properties().get_audio_info().unwrap();
 211                     let twocc = find_wav_twocc(strm.get_info().get_name());
 212                     if twocc.is_none() {
 213                         return Err(MuxerError::UnsupportedFormat);
 214                     }
 215                     self.bw.write_u16le(twocc.unwrap_or(0))?;
 216                     self.bw.write_u16le(ainfo.channels as u16)?;
 217                     self.bw.write_u32le(ainfo.sample_rate)?;
 218                     self.bw.write_u32le(0)?; // avg bytes per second
 219                     self.bw.write_u16le(ainfo.block_len as u16)?;
 220                     self.bw.write_u16le(ainfo.format.bits as u16)?;
 221                     if let Some(ref edata) = strm.get_info().get_extradata() {
 222                         self.bw.write_buf(edata.as_slice())?;
 223                     }
 224                 },
 225                 StreamType::Subtitles => {
 226                     if let Some(ref edata) = strm.get_info().get_extradata() {
 227                         self.bw.write_buf(edata.as_slice())?;
 228                     }
 229                 },
 230                 _ => unreachable!(),
 231             };
 232             patch_size(self.bw, strf_pos)?;
 233             patch_size(self.bw, strl_pos)?;
 234         }
 235         patch_size(self.bw, hdrl_pos)?;
 236
 237         self.data_pos = self.bw.tell() + 8;
 238         self.bw.write_buf(b"LIST\0\0\0\0movi")?;
 239
 240         Ok(())
 241     }
 242     fn mux_frame(&mut self, _strmgr: &StreamManager, pkt: NAPacket) -> MuxerResult<()> {
 243         if self.data_pos == 0 {
 244             return Err(MuxerError::NotCreated);
 245         }
 246         let stream = pkt.get_stream();
 247         let str_num = stream.get_num();
 248         if str_num > 99 || str_num >= self.stream_info.len() {
 249             return Err(MuxerError::UnsupportedFormat);
 250         }
 251
 252         let chunk_len = pkt.get_buffer().len() as u32;
 253
 254         if self.pal_pos[str_num] != 0 {
 255             for sdata in pkt.side_data.iter() {
 256                 if let NASideData::Palette(_, ref pal) = sdata {
 257                     let cur_pos = self.bw.tell();
 258                     self.bw.seek(SeekFrom::Start(u64::from(self.pal_pos[str_num])))?;
 259                     self.bw.write_buf(pal.as_ref())?;
 260                     self.bw.seek(SeekFrom::Start(cur_pos))?;
 261                     self.pal_pos[str_num] = 0;
 262                     break;
 263                 }
 264             }
 265         } else {
 266             for sdata in pkt.side_data.iter() {
 267                 if let NASideData::Palette(true, ref pal) = sdata {
 268                     //todo search for changed region
 269                     let start_clr = 0usize;
 270                     let end_clr = 256usize;
 271                     if start_clr < end_clr {
 272                         let chunk_len = ((end_clr - start_clr) as u32) * 4 + 4;
 273                         self.bw.write_byte(b'0' + ((str_num / 10) as u8))?;
 274                         self.bw.write_byte(b'0' + ((str_num % 10) as u8))?;
 275                         self.bw.write_buf(b"pc")?;
 276                         self.bw.write_u32le(chunk_len)?;
 277                         self.bw.write_byte(start_clr as u8)?;
 278                         self.bw.write_byte((end_clr - start_clr) as u8)?;
 279                         self.bw.write_u16le(0)?; //flags
 280                         self.bw.write_buf(&pal[start_clr * 4..end_clr * 4])?;
 281                     }
 282                 }
 283             }
 284         }
 285
 286         self.stream_info[str_num].nframes += 1;
 287         self.stream_info[str_num].max_size = self.stream_info[str_num].max_size.max(chunk_len);
 288         self.index.push(IdxEntry {
 289                 stream: str_num as u32,
 290                 stype:  stream.get_media_type(),
 291                 key:    pkt.keyframe,
 292                 pos:    self.bw.tell() as u32,
 293                 len:    chunk_len });
 294         write_chunk_hdr(self.bw, stream.get_media_type(), str_num as u32)?;
 295         self.bw.write_u32le(chunk_len)?;
 296         self.bw.write_buf(pkt.get_buffer().as_slice())?;
 297         if (self.bw.tell() & 1) != 0 {
 298             self.bw.write_byte(0)?;
 299         }
 300         Ok(())
 301     }
 302     fn flush(&mut self) -> MuxerResult<()> {
 303         Ok(())
 304     }
 305     fn end(&mut self) -> MuxerResult<()> {
 306         patch_size(self.bw, self.data_pos)?;
 307         if !self.index.is_empty() {
 308             self.bw.write_buf(b"idx1")?;
 309             self.bw.write_u32le((self.index.len() * 16) as u32)?;
 310             for item in self.index.iter() {
 311                 write_chunk_hdr(self.bw, item.stype, item.stream)?;
 312                 self.bw.write_u32le(if item.key { 0x10 } else { 0 })?;
 313                 self.bw.write_u32le(item.pos)?;
 314                 self.bw.write_u32le(item.len)?;
 315             }
 316         }
 317         patch_size(self.bw, 8)?;
 318         let mut max_frames = 0;
 319         let mut max_size = 0;
 320         for stri in self.stream_info.iter() {
 321             max_frames = max_frames.max(stri.nframes);
 322             max_size = max_size.max(stri.max_size);
 323             self.bw.seek(SeekFrom::Start(stri.strh_pos + 0x18))?;
 324             self.bw.write_u32le(if stri.is_video { stri.nframes } else { 0 })?;
 325             self.bw.write_u32le(stri.max_size)?;
 326         }
 327         self.bw.seek(SeekFrom::Start(0x30))?;
 328         self.bw.write_u32le(max_frames)?;
 329         self.bw.seek(SeekFrom::Current(8))?;
 330         self.bw.write_u32le(max_size)?;
 331         Ok(())
 332     }
 333 }
 334
 335 impl<'a> NAOptionHandler for AVIMuxer<'a> {
 336     fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
 337     fn set_options(&mut self, _options: &[NAOption]) { }
 338     fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
 339 }
 340
 341 pub struct AVIMuxerCreator {}
 342
 343 impl MuxerCreator for AVIMuxerCreator {
 344     fn new_muxer<'a>(&self, bw: &'a mut ByteWriter<'a>) -> Box<dyn MuxCore<'a> + 'a> {
 345         Box::new(AVIMuxer::new(bw))
 346     }
 347     fn get_name(&self) -> &'static str { "avi" }
 348     fn get_capabilities(&self) -> MuxerCapabilities { MuxerCapabilities::Universal }
 349 }
 350
 351 #[cfg(test)]
 352 mod test {
 353     use nihav_core::codecs::*;
 354     use nihav_core::demuxers::*;
 355     use nihav_core::muxers::*;
 356     use nihav_codec_support::test::enc_video::*;
 357     use crate::*;
 358
 359     #[test]
 360     fn test_avi_muxer() {
 361         let mut dmx_reg = RegisteredDemuxers::new();
 362         generic_register_all_demuxers(&mut dmx_reg);
 363         //test sample: https://samples.mplayerhq.hu/V-codecs/RT21/320x240/laser05.avi
 364         let dec_config = DecoderTestParams {
 365                 demuxer:        "avi",
 366                 in_name:        "assets/Indeo/laser05.avi",
 367                 limit:          None,
 368                 stream_type:    StreamType::None,
 369                 dmx_reg, dec_reg: RegisteredDecoders::new(),
 370             };
 371         let mut mux_reg = RegisteredMuxers::new();
 372         generic_register_all_muxers(&mut mux_reg);
 373         /*let enc_config = EncoderTestParams {
 374                 muxer:      "avi",
 375                 enc_name:   "",
 376                 out_name:   "muxed.avi",
 377                 mux_reg, enc_reg: RegisteredEncoders::new(),
 378             };
 379         test_remuxing(&dec_config, &enc_config);*/
 380         test_remuxing_md5(&dec_config, "avi", &mux_reg,
 381                           [0xa0fb0e47, 0x412e24dd, 0x6b89711c, 0x276fb799]);
 382     }
 383 }