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.truncate(0);
 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                     if vinfo.flipped {
 175                         self.bw.write_u32le((-(vinfo.height as i32)) as u32)?;
 176                     } else {
 177                         self.bw.write_u32le(vinfo.height as u32)?;
 178                     }
 179                     self.bw.write_u16le(vinfo.format.components as u16)?;
 180                     self.bw.write_u16le(vinfo.format.get_total_depth() as u16)?;
 181                     let fcc = find_avi_fourcc(str.get_info().get_name());
 182                     if fcc.is_none() {
 183                         return Err(MuxerError::UnsupportedFormat);
 184                     }
 185                     self.bw.write_buf(&fcc.unwrap_or([0; 4]))?;
 186                     self.bw.write_u32le(0)?; // image size
 187                     self.bw.write_u32le(0)?; // x dpi
 188                     self.bw.write_u32le(0)?; // y dpi
 189                     if vinfo.format.palette {
 190                         self.bw.write_u32le(256)?; // total colors
 191                         self.bw.write_u32le(0)?; // important colors
 192                         self.pal_pos[strno] = self.bw.tell() as u32;
 193                         for _ in 0..256 {
 194                             self.bw.write_u32le(0)?;
 195                         }
 196                     } else {
 197                         self.bw.write_u32le(0)?; // total colors
 198                         self.bw.write_u32le(0)?; // important colors
 199                     }
 200                     if let Some(ref edata) = str.get_info().get_extradata() {
 201                         self.bw.write_buf(edata.as_slice())?;
 202                     }
 203                     let bisize = self.bw.tell() - hdr_pos;
 204                     self.bw.seek(SeekFrom::Current(-(bisize as i64)))?;
 205                     self.bw.write_u32le(bisize as u32)?;
 206                     self.bw.seek(SeekFrom::End(0))?;
 207                 },
 208                 StreamType::Audio => {
 209                     let ainfo = str.get_info().get_properties().get_audio_info().unwrap();
 210                     let twocc = find_wav_twocc(str.get_info().get_name());
 211                     if twocc.is_none() {
 212                         return Err(MuxerError::UnsupportedFormat);
 213                     }
 214                     self.bw.write_u16le(twocc.unwrap_or(0))?;
 215                     self.bw.write_u16le(ainfo.channels as u16)?;
 216                     self.bw.write_u32le(ainfo.sample_rate)?;
 217                     self.bw.write_u32le(0)?; // avg bytes per second
 218                     self.bw.write_u16le(ainfo.block_len as u16)?;
 219                     self.bw.write_u16le(ainfo.format.bits as u16)?;
 220                     if let Some(ref edata) = str.get_info().get_extradata() {
 221                         self.bw.write_buf(edata.as_slice())?;
 222                     }
 223                 },
 224                 StreamType::Subtitles => {
 225                     if let Some(ref edata) = str.get_info().get_extradata() {
 226                         self.bw.write_buf(edata.as_slice())?;
 227                     }
 228                 },
 229                 _ => unreachable!(),
 230             };
 231             patch_size(&mut self.bw, strf_pos)?;
 232             patch_size(&mut self.bw, strl_pos)?;
 233         }
 234         patch_size(&mut self.bw, hdrl_pos)?;
 235
 236         self.data_pos = self.bw.tell() + 8;
 237         self.bw.write_buf(b"LIST\0\0\0\0movi")?;
 238
 239         Ok(())
 240     }
 241     fn mux_frame(&mut self, _strmgr: &StreamManager, pkt: NAPacket) -> MuxerResult<()> {
 242         if self.data_pos == 0 {
 243             return Err(MuxerError::NotCreated);
 244         }
 245         let str = pkt.get_stream();
 246         let str_num = str.get_num();
 247         if str_num > 99 || str_num >= self.stream_info.len() {
 248             return Err(MuxerError::UnsupportedFormat);
 249         }
 250
 251         let chunk_len = pkt.get_buffer().len() as u32;
 252
 253         if self.pal_pos[str_num] != 0 {
 254             for sdata in pkt.side_data.iter() {
 255                 if let NASideData::Palette(_, ref pal) = sdata {
 256                     let cur_pos = self.bw.tell();
 257                     self.bw.seek(SeekFrom::Start(u64::from(self.pal_pos[str_num])))?;
 258                     self.bw.write_buf(pal.as_ref())?;
 259                     self.bw.seek(SeekFrom::Start(cur_pos))?;
 260                     self.pal_pos[str_num] = 0;
 261                     break;
 262                 }
 263             }
 264         } else {
 265             for sdata in pkt.side_data.iter() {
 266                 if let NASideData::Palette(true, ref pal) = sdata {
 267                     //todo search for changed region
 268                     let start_clr = 0usize;
 269                     let end_clr = 256usize;
 270                     if start_clr < end_clr {
 271                         let chunk_len = ((end_clr - start_clr) as u32) * 4 + 4;
 272                         self.bw.write_byte(b'0' + ((str_num / 10) as u8))?;
 273                         self.bw.write_byte(b'0' + ((str_num % 10) as u8))?;
 274                         self.bw.write_buf(b"pc")?;
 275                         self.bw.write_u32le(chunk_len)?;
 276                         self.bw.write_byte(start_clr as u8)?;
 277                         self.bw.write_byte((end_clr - start_clr) as u8)?;
 278                         self.bw.write_u16le(0)?; //flags
 279                         self.bw.write_buf(&pal[start_clr * 4..end_clr * 4])?;
 280                     }
 281                 }
 282             }
 283         }
 284
 285         self.stream_info[str_num].nframes += 1;
 286         self.stream_info[str_num].max_size = self.stream_info[str_num].max_size.max(chunk_len);
 287         self.index.push(IdxEntry {
 288                 stream: str_num as u32,
 289                 stype:  str.get_media_type(),
 290                 key:    pkt.keyframe,
 291                 pos:    self.bw.tell() as u32,
 292                 len:    chunk_len });
 293         write_chunk_hdr(&mut self.bw, str.get_media_type(), str_num as u32)?;
 294         self.bw.write_u32le(chunk_len)?;
 295         self.bw.write_buf(pkt.get_buffer().as_slice())?;
 296         if (self.bw.tell() & 1) != 0 {
 297             self.bw.write_byte(0)?;
 298         }
 299         Ok(())
 300     }
 301     fn flush(&mut self) -> MuxerResult<()> {
 302         Ok(())
 303     }
 304     fn end(&mut self) -> MuxerResult<()> {
 305         patch_size(&mut self.bw, self.data_pos)?;
 306         if !self.index.is_empty() {
 307             self.bw.write_buf(b"idx1")?;
 308             self.bw.write_u32le((self.index.len() * 16) as u32)?;
 309             for item in self.index.iter() {
 310                 write_chunk_hdr(&mut self.bw, item.stype, item.stream)?;
 311                 self.bw.write_u32le(if item.key { 0x10 } else { 0 })?;
 312                 self.bw.write_u32le(item.pos)?;
 313                 self.bw.write_u32le(item.len)?;
 314             }
 315         }
 316         patch_size(&mut self.bw, 8)?;
 317         let mut max_frames = 0;
 318         let mut max_size = 0;
 319         for stri in self.stream_info.iter() {
 320             max_frames = max_frames.max(stri.nframes);
 321             max_size = max_size.max(stri.max_size);
 322             self.bw.seek(SeekFrom::Start(stri.strh_pos + 0x18))?;
 323             self.bw.write_u32le(if stri.is_video { stri.nframes } else { 0 })?;
 324             self.bw.write_u32le(stri.max_size)?;
 325         }
 326         self.bw.seek(SeekFrom::Start(0x30))?;
 327         self.bw.write_u32le(max_frames)?;
 328         self.bw.seek(SeekFrom::Current(8))?;
 329         self.bw.write_u32le(max_size)?;
 330         Ok(())
 331     }
 332 }
 333
 334 impl<'a> NAOptionHandler for AVIMuxer<'a> {
 335     fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
 336     fn set_options(&mut self, _options: &[NAOption]) { }
 337     fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
 338 }
 339
 340 pub struct AVIMuxerCreator {}
 341
 342 impl MuxerCreator for AVIMuxerCreator {
 343     fn new_muxer<'a>(&self, bw: &'a mut ByteWriter<'a>) -> Box<dyn MuxCore<'a> + 'a> {
 344         Box::new(AVIMuxer::new(bw))
 345     }
 346     fn get_name(&self) -> &'static str { "avi" }
 347     fn get_capabilities(&self) -> MuxerCapabilities { MuxerCapabilities::Universal }
 348 }
 349
 350 #[cfg(test)]
 351 mod test {
 352     use nihav_core::codecs::*;
 353     use nihav_core::demuxers::*;
 354     use nihav_core::muxers::*;
 355     use nihav_codec_support::test::enc_video::*;
 356     use crate::*;
 357
 358     #[test]
 359     fn test_avi_muxer() {
 360         let mut dmx_reg = RegisteredDemuxers::new();
 361         generic_register_all_demuxers(&mut dmx_reg);
 362         let dec_config = DecoderTestParams {
 363                 demuxer:        "avi",
 364                 in_name:        "assets/Indeo/laser05.avi",
 365                 limit:          None,
 366                 stream_type:    StreamType::None,
 367                 dmx_reg, dec_reg: RegisteredDecoders::new(),
 368             };
 369         let mut mux_reg = RegisteredMuxers::new();
 370         generic_register_all_muxers(&mut mux_reg);
 371         /*let enc_config = EncoderTestParams {
 372                 muxer:      "avi",
 373                 enc_name:   "",
 374                 out_name:   "muxed.avi",
 375                 mux_reg, enc_reg: RegisteredEncoders::new(),
 376             };
 377         test_remuxing(&dec_config, &enc_config);*/
 378         test_remuxing_md5(&dec_config, "avi", &mux_reg,
 379                           [0xa0fb0e47, 0x412e24dd, 0x6b89711c, 0x276fb799]);
 380     }
 381 }