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, str) in strmgr.iter().enumerate() {
  76             if str.get_media_type() == StreamType::Video {
  77                 self.video_str = Some(str_no);
  78                 self.video_id  = str.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, str) 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 str.get_media_type() {
 120                 StreamType::Video => {
 121                     self.bw.write_buf(b"vids")?;
 122                     let fcc = find_avi_fourcc(str.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 = str.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:   str.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(str.tb_num)?;
 154             self.bw.write_u32le(str.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 str.get_media_type() {
 169                 StreamType::Video => {
 170                     let vinfo = str.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                     self.bw.write_u16le(vinfo.format.components as u16)?;
 176                     self.bw.write_u16le(vinfo.format.get_total_depth() as u16)?;
 177                     let fcc = find_avi_fourcc(str.get_info().get_name());
 178                     if fcc.is_none() {
 179                         return Err(MuxerError::UnsupportedFormat);
 180                     }
 181                     self.bw.write_buf(&fcc.unwrap_or([0; 4]))?;
 182                     self.bw.write_u32le(0)?; // image size
 183                     self.bw.write_u32le(0)?; // x dpi
 184                     self.bw.write_u32le(0)?; // y dpi
 185                     if vinfo.format.palette {
 186                         self.bw.write_u32le(256)?; // total colors
 187                         self.bw.write_u32le(0)?; // important colors
 188                         self.pal_pos[strno] = self.bw.tell() as u32;
 189                         for _ in 0..256 {
 190                             self.bw.write_u32le(0)?;
 191                         }
 192                     } else {
 193                         self.bw.write_u32le(0)?; // total colors
 194                         self.bw.write_u32le(0)?; // important colors
 195                     }
 196                     if let Some(ref edata) = str.get_info().get_extradata() {
 197                         self.bw.write_buf(edata.as_slice())?;
 198                     }
 199                     let bisize = self.bw.tell() - hdr_pos;
 200                     self.bw.seek(SeekFrom::Current(-(bisize as i64)))?;
 201                     self.bw.write_u32le(bisize as u32)?;
 202                     self.bw.seek(SeekFrom::End(0))?;
 203                 },
 204                 StreamType::Audio => {
 205                     let ainfo = str.get_info().get_properties().get_audio_info().unwrap();
 206                     let twocc = find_wav_twocc(str.get_info().get_name());
 207                     if twocc.is_none() {
 208                         return Err(MuxerError::UnsupportedFormat);
 209                     }
 210                     self.bw.write_u16le(twocc.unwrap_or(0))?;
 211                     self.bw.write_u16le(ainfo.channels as u16)?;
 212                     self.bw.write_u32le(ainfo.sample_rate)?;
 213                     self.bw.write_u32le(0)?; // avg bytes per second
 214                     self.bw.write_u16le(ainfo.block_len as u16)?;
 215                     self.bw.write_u16le(ainfo.format.bits as u16)?;
 216                     if let Some(ref edata) = str.get_info().get_extradata() {
 217                         self.bw.write_buf(edata.as_slice())?;
 218                     }
 219                 },
 220                 StreamType::Subtitles => {
 221                     if let Some(ref edata) = str.get_info().get_extradata() {
 222                         self.bw.write_buf(edata.as_slice())?;
 223                     }
 224                 },
 225                 _ => unreachable!(),
 226             };
 227             patch_size(&mut self.bw, strf_pos)?;
 228             patch_size(&mut self.bw, strl_pos)?;
 229         }
 230         patch_size(&mut self.bw, hdrl_pos)?;
 231
 232         self.data_pos = self.bw.tell() + 8;
 233         self.bw.write_buf(b"LIST\0\0\0\0movi")?;
 234
 235         Ok(())
 236     }
 237     fn mux_frame(&mut self, _strmgr: &StreamManager, pkt: NAPacket) -> MuxerResult<()> {
 238         if self.data_pos == 0 {
 239             return Err(MuxerError::NotCreated);
 240         }
 241         let str = pkt.get_stream();
 242         let str_num = str.get_num();
 243         if str_num > 99 || str_num >= self.stream_info.len() {
 244             return Err(MuxerError::UnsupportedFormat);
 245         }
 246
 247         let chunk_len = pkt.get_buffer().len() as u32;
 248
 249         if self.pal_pos[str_num] != 0 {
 250             for sdata in pkt.side_data.iter() {
 251                 if let NASideData::Palette(_, ref pal) = sdata {
 252                     let cur_pos = self.bw.tell();
 253                     self.bw.seek(SeekFrom::Start(u64::from(self.pal_pos[str_num])))?;
 254                     self.bw.write_buf(pal.as_ref())?;
 255                     self.bw.seek(SeekFrom::Start(cur_pos))?;
 256                     self.pal_pos[str_num] = 0;
 257                     break;
 258                 }
 259             }
 260         } else {
 261             for sdata in pkt.side_data.iter() {
 262                 if let NASideData::Palette(true, ref pal) = sdata {
 263                     //todo search for changed region
 264                     let start_clr = 0usize;
 265                     let end_clr = 256usize;
 266                     if start_clr < end_clr {
 267                         let chunk_len = ((end_clr - start_clr) as u32) * 4 + 4;
 268                         self.bw.write_byte(b'0' + ((str_num / 10) as u8))?;
 269                         self.bw.write_byte(b'0' + ((str_num % 10) as u8))?;
 270                         self.bw.write_buf(b"pc")?;
 271                         self.bw.write_u32le(chunk_len)?;
 272                         self.bw.write_byte(start_clr as u8)?;
 273                         self.bw.write_byte((end_clr - start_clr) as u8)?;
 274                         self.bw.write_u16le(0)?; //flags
 275                         self.bw.write_buf(&pal[start_clr * 4..end_clr * 4])?;
 276                     }
 277                 }
 278             }
 279         }
 280
 281         self.stream_info[str_num].nframes += 1;
 282         self.stream_info[str_num].max_size = self.stream_info[str_num].max_size.max(chunk_len);
 283         self.index.push(IdxEntry {
 284                 stream: str_num as u32,
 285                 stype:  str.get_media_type(),
 286                 key:    pkt.keyframe,
 287                 pos:    self.bw.tell() as u32,
 288                 len:    chunk_len });
 289         write_chunk_hdr(&mut self.bw, str.get_media_type(), str_num as u32)?;
 290         self.bw.write_u32le(chunk_len)?;
 291         self.bw.write_buf(pkt.get_buffer().as_slice())?;
 292         if (self.bw.tell() & 1) != 0 {
 293             self.bw.write_byte(0)?;
 294         }
 295         Ok(())
 296     }
 297     fn flush(&mut self) -> MuxerResult<()> {
 298         Ok(())
 299     }
 300     fn end(&mut self) -> MuxerResult<()> {
 301         patch_size(&mut self.bw, self.data_pos)?;
 302         if !self.index.is_empty() {
 303             self.bw.write_buf(b"idx1")?;
 304             self.bw.write_u32le((self.index.len() * 16) as u32)?;
 305             for item in self.index.iter() {
 306                 write_chunk_hdr(&mut self.bw, item.stype, item.stream)?;
 307                 self.bw.write_u32le(if item.key { 0x10 } else { 0 })?;
 308                 self.bw.write_u32le(item.pos)?;
 309                 self.bw.write_u32le(item.len)?;
 310             }
 311         }
 312         patch_size(&mut self.bw, 8)?;
 313         let mut max_frames = 0;
 314         let mut max_size = 0;
 315         for stri in self.stream_info.iter() {
 316             max_frames = max_frames.max(stri.nframes);
 317             max_size = max_size.max(stri.max_size);
 318             self.bw.seek(SeekFrom::Start(stri.strh_pos + 0x18))?;
 319             self.bw.write_u32le(if stri.is_video { stri.nframes } else { 0 })?;
 320             self.bw.write_u32le(stri.max_size)?;
 321         }
 322         self.bw.seek(SeekFrom::Start(0x30))?;
 323         self.bw.write_u32le(max_frames)?;
 324         self.bw.seek(SeekFrom::Current(8))?;
 325         self.bw.write_u32le(max_size)?;
 326         Ok(())
 327     }
 328 }
 329
 330 impl<'a> NAOptionHandler for AVIMuxer<'a> {
 331     fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
 332     fn set_options(&mut self, _options: &[NAOption]) { }
 333     fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
 334 }
 335
 336 pub struct AVIMuxerCreator {}
 337
 338 impl MuxerCreator for AVIMuxerCreator {
 339     fn new_muxer<'a>(&self, bw: &'a mut ByteWriter<'a>) -> Box<dyn MuxCore<'a> + 'a> {
 340         Box::new(AVIMuxer::new(bw))
 341     }
 342     fn get_name(&self) -> &'static str { "avi" }
 343     fn get_capabilities(&self) -> MuxerCapabilities { MuxerCapabilities::Universal }
 344 }
 345
 346 #[cfg(test)]
 347 mod test {
 348     use nihav_core::codecs::*;
 349     use nihav_core::demuxers::*;
 350     use nihav_core::muxers::*;
 351     use nihav_codec_support::test::enc_video::*;
 352     use crate::*;
 353
 354     #[test]
 355     fn test_avi_muxer() {
 356         let mut dmx_reg = RegisteredDemuxers::new();
 357         generic_register_all_demuxers(&mut dmx_reg);
 358         let dec_config = DecoderTestParams {
 359                 demuxer:        "avi",
 360                 in_name:        "assets/Indeo/laser05.avi",
 361                 limit:          None,
 362                 stream_type:    StreamType::None,
 363                 dmx_reg, dec_reg: RegisteredDecoders::new(),
 364             };
 365         let mut mux_reg = RegisteredMuxers::new();
 366         generic_register_all_muxers(&mut mux_reg);
 367         /*let enc_config = EncoderTestParams {
 368                 muxer:      "avi",
 369                 enc_name:   "",
 370                 out_name:   "muxed.avi",
 371                 mux_reg, enc_reg: RegisteredEncoders::new(),
 372             };
 373         test_remuxing(&dec_config, &enc_config);*/
 374         test_remuxing_md5(&dec_config, "avi", &mux_reg,
 375                           [0xa0fb0e47, 0x412e24dd, 0x6b89711c, 0x276fb799]);
 376     }
 377 }