src/main.rs

   1 extern crate nihav_core;
   2 extern crate nihav_codec_support;
   3 extern crate nihav_registry;
   4 extern crate nihav_allstuff;
   5
   6 use std::fs::File;
   7 use nihav_core::io::byteio::{FileReader, ByteReader};
   8 use nihav_core::frame::*;
   9 use nihav_core::options::*;
  10 use nihav_core::codecs::*;
  11 use nihav_core::demuxers::*;
  12 use nihav_core::muxers::*;
  13 use nihav_core::scale::*;
  14 use nihav_core::soundcvt::*;
  15 use nihav_registry::detect;
  16 use nihav_registry::register;
  17 use nihav_allstuff::*;
  18 use std::env;
  19
  20 mod null;
  21 use crate::null::*;
  22
  23 fn print_options(name: &str, options: &[NAOptionDefinition]) {
  24     if options.is_empty() {
  25         println!("No custom options.");
  26     } else {
  27         println!("Options for '{}'", name);
  28         for opt in options.iter() {
  29             println!(" {}", opt);
  30         }
  31     }
  32 }
  33
  34 struct OptionArgs {
  35     name:   String,
  36     value:  Option<String>,
  37 }
  38
  39 struct InputStreamOptions {
  40     id:             u32,
  41     drop:           bool,
  42     dec_opts:       Vec<OptionArgs>,
  43 }
  44
  45 struct OutputStreamOptions {
  46     id:             u32,
  47     enc_params:     EncodeParameters,
  48     enc_name:       String,
  49     enc_opts:       Vec<OptionArgs>,
  50 }
  51
  52 enum OutputConvert {
  53     Video(NAScale, NABufferType),
  54     Audio(NAAudioInfo, NAChannelMap),
  55     None,
  56 }
  57
  58 enum OutputMode {
  59     Drop,
  60     Copy(u32),
  61     Encode(u32, Box<dyn NAEncoder>, OutputConvert),
  62 }
  63
  64 #[derive(Default)]
  65 struct Transcoder {
  66     input_name:     String,
  67     input_fmt:      Option<String>,
  68     output_name:    String,
  69     output_fmt:     Option<String>,
  70     demux_opts:     Vec<OptionArgs>,
  71     mux_opts:       Vec<OptionArgs>,
  72     istr_opts:      Vec<InputStreamOptions>,
  73     ostr_opts:      Vec<OutputStreamOptions>,
  74     decoders:       Vec<Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)>>,
  75     encoders:       Vec<OutputMode>,
  76     no_video:       bool,
  77     no_audio:       bool,
  78     start:          NATimePoint,
  79     end:            NATimePoint,
  80 }
  81
  82 macro_rules! parse_and_apply_options {
  83     ($obj: expr, $in_opts: expr, $name: expr) => {
  84         let mut opts = Vec::with_capacity($in_opts.len());
  85         let opt_def = $obj.get_supported_options();
  86         for opt in $in_opts.iter() {
  87             let mut found = false;
  88             for opt_def in opt_def.iter() {
  89                 if opt.name == opt_def.name {
  90                     let arg = if let Some(ref str) = opt.value { Some(str) } else { None };
  91                     let ret = opt_def.parse(&opt.name, arg);
  92                     if ret.is_err() {
  93                         println!("invalid option {} for {}", opt.name, $name);
  94                     } else {
  95                         let (val, _) = ret.unwrap();
  96                         opts.push(val);
  97                     }
  98                     found = true;
  99                 }
 100             }
 101             if !found {
 102                 println!("  ignoring option '{}' for {}", opt.name, $name);
 103             }
 104         }
 105         $obj.set_options(opts.as_slice());
 106     }
 107 }
 108
 109 impl Transcoder {
 110     fn new() -> Self { Self::default() }
 111     fn parse_istream_options(&mut self, opt0: &str, opt1: &str) -> bool {
 112         let (_, strno) = opt0.split_at(9);
 113         let ret = strno.parse::<u32>();
 114         if ret.is_err() { return false; }
 115         let streamno = ret.unwrap();
 116
 117         let sidx = if let Some(idx) = self.istr_opts.iter().position(|str| str.id == streamno) {
 118                 idx
 119             } else {
 120                 self.istr_opts.push(InputStreamOptions {id: streamno, drop: false, dec_opts: Vec::new() });
 121                 self.istr_opts.len() - 1
 122             };
 123         let istr = &mut self.istr_opts[sidx];
 124
 125         for opt in opt1.split(',') {
 126             let oval: Vec<_> = opt.split('=').collect();
 127             if oval.len() == 1 {
 128                 match oval[0] {
 129                     "drop" => { istr.drop = true; },
 130                     _ => {
 131                         istr.dec_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
 132                     },
 133                 };
 134             } else if oval.len() == 2 {
 135                 istr.dec_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
 136             } else {
 137                 println!("unrecognized option '{}'", opt);
 138             }
 139         }
 140         true
 141     }
 142     fn parse_ostream_options(&mut self, opt0: &str, opt1: &str, enc_reg: &RegisteredEncoders) -> bool {
 143         let (_, strno) = opt0.split_at(9);
 144         let ret = strno.parse::<u32>();
 145         if ret.is_err() { return false; }
 146         let streamno = ret.unwrap();
 147
 148         let sidx = if let Some(idx) = self.ostr_opts.iter().position(|str| str.id == streamno) {
 149                 idx
 150             } else {
 151                 self.ostr_opts.push(OutputStreamOptions {id: streamno, enc_name: String::new(), enc_params: EncodeParameters::default(), enc_opts: Vec::new() });
 152                 self.ostr_opts.len() - 1
 153             };
 154         let ostr = &mut self.ostr_opts[sidx];
 155
 156         for opt in opt1.split(',') {
 157             let oval: Vec<_> = opt.split('=').collect();
 158             if oval.len() == 1 {
 159                 match oval[0] {
 160                     "flip" => {
 161                         if ostr.enc_params.format == NACodecTypeInfo::None {
 162                             ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
 163                         }
 164                         if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
 165                             vinfo.flipped = true;
 166                         } else {
 167                             println!("video option for audio stream");
 168                         }
 169                     },
 170                     "noflip" => {
 171                         if ostr.enc_params.format == NACodecTypeInfo::None {
 172                             ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
 173                         }
 174                         if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
 175                             vinfo.flipped = false;
 176                         } else {
 177                             println!("video option for audio stream");
 178                         }
 179                     },
 180                     _ => {
 181                         ostr.enc_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
 182                     },
 183                 };
 184             } else if oval.len() == 2 {
 185 //todo parse encoder options, store, init later
 186                 match oval[0] {
 187                     "encoder" => {
 188                         if enc_reg.find_encoder(oval[1]).is_some() {
 189                             ostr.enc_name = oval[1].to_string();
 190                         } else {
 191                             println!("unknown encoder '{}'", oval[1]);
 192                             ostr.enc_name = oval[1].to_string();
 193                         }
 194                     },
 195                     "width" => {
 196                         if ostr.enc_params.format == NACodecTypeInfo::None {
 197                             ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
 198                         }
 199                         if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
 200                             let ret = oval[1].parse::<usize>();
 201                             if let Ok(val) = ret {
 202                                 vinfo.width = val;
 203                             } else {
 204                                 println!("invalid width");
 205                             }
 206                         } else {
 207                             println!("video option for audio stream");
 208                         }
 209                     },
 210                     "height" => {
 211                         if ostr.enc_params.format == NACodecTypeInfo::None {
 212                             ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
 213                         }
 214                         if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
 215                             let ret = oval[1].parse::<usize>();
 216                             if let Ok(val) = ret {
 217                                 vinfo.height = val;
 218                             } else {
 219                                 println!("invalid height");
 220                             }
 221                         } else {
 222                             println!("video option for audio stream");
 223                         }
 224                     },
 225                     "pixfmt" => {
 226                         if ostr.enc_params.format == NACodecTypeInfo::None {
 227                             ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
 228                         }
 229                         if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
 230                             let ret = oval[1].parse::<NAPixelFormaton>();
 231                             if let Ok(val) = ret {
 232                                 vinfo.format = val;
 233                             } else {
 234                                 println!("invalid pixel format");
 235                             }
 236                         } else {
 237                             println!("video option for audio stream");
 238                         }
 239                     },
 240                     "srate" => {
 241                         if ostr.enc_params.format == NACodecTypeInfo::None {
 242                             ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
 243                         }
 244                         if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
 245                             let ret = oval[1].parse::<u32>();
 246                             if let Ok(val) = ret {
 247                                 ainfo.sample_rate = val;
 248                             } else {
 249                                 println!("invalid sampling rate");
 250                             }
 251                         } else {
 252                             println!("audio option for video stream");
 253                         }
 254                     },
 255                     "channels" => {
 256                         if ostr.enc_params.format == NACodecTypeInfo::None {
 257                             ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
 258                         }
 259                         if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
 260                             let ret = oval[1].parse::<u8>();
 261                             if let Ok(val) = ret {
 262                                 ainfo.channels = val;
 263                             } else {
 264                                 println!("invalid number of channels");
 265                             }
 266                         } else {
 267                             println!("audio option for video stream");
 268                         }
 269                     },
 270                     "block_len" => {
 271                         if ostr.enc_params.format == NACodecTypeInfo::None {
 272                             ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
 273                         }
 274                         if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
 275                             let ret = oval[1].parse::<usize>();
 276                             if let Ok(val) = ret {
 277                                 ainfo.block_len = val;
 278                             } else {
 279                                 println!("invalid block_length");
 280                             }
 281                         } else {
 282                             println!("audio option for video stream");
 283                         }
 284                     },
 285                     "sfmt" => {
 286                         if ostr.enc_params.format == NACodecTypeInfo::None {
 287                             ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
 288                         }
 289                         if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
 290                             let ret = oval[1].parse::<NASoniton>();
 291                             if let Ok(val) = ret {
 292                                 ainfo.format = val;
 293                             } else {
 294                                 println!("invalid audio format");
 295                             }
 296                         } else {
 297                             println!("audio option for video stream");
 298                         }
 299                     },
 300 // todo channel map negotiation
 301                     /*"chmap" => {
 302                         if ostr.enc_params.format == NACodecTypeInfo::None {
 303                             ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
 304                         }
 305                         if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
 306                             let ret = oval[1].parse::<NAChannelMap>();
 307                             if let Ok(val) = ret {
 308                                 ainfo.chmap = val;
 309                             } else {
 310                                 println!("invalid channel map");
 311                             }
 312                         } else {
 313                             println!("audio option for video stream");
 314                         }
 315                     },*/
 316                     "bitrate" => {
 317                         let ret = oval[1].parse::<u32>();
 318                         if let Ok(val) = ret {
 319                             ostr.enc_params.bitrate = val;
 320                         } else {
 321                             println!("invalid bitrate value");
 322                         }
 323                     },
 324                     "quality" => {
 325                         let ret = oval[1].parse::<u8>();
 326                         if let Ok(val) = ret {
 327                             ostr.enc_params.quality = val;
 328                         } else {
 329                             println!("invalid quality value");
 330                         }
 331                     },
 332                     _ => {
 333                         ostr.enc_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
 334                     },
 335                 }
 336             } else {
 337                 println!("unrecognized option '{}'", opt);
 338             }
 339         }
 340         true
 341     }
 342     fn parse_demuxer_options(&mut self, opts: &str, dmx_reg: &RegisteredDemuxers) -> bool {
 343         for opt in opts.split(',') {
 344             let oval: Vec<_> = opt.split('=').collect();
 345             if oval.len() == 1 {
 346                 self.demux_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
 347             } else if oval.len() == 2 {
 348                 if oval[0] == "format" {
 349                     if dmx_reg.find_demuxer(oval[1]).is_some() {
 350                         self.input_fmt = Some(oval[1].to_string());
 351                     } else {
 352                         println!("unknown demuxer format '{}'", oval[1]);
 353                     }
 354                 } else {
 355                     self.demux_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
 356                 }
 357             } else {
 358                 println!("unrecognized option '{}'", opt);
 359             }
 360         }
 361         true
 362     }
 363     fn parse_muxer_options(&mut self, opts: &str, mux_reg: &RegisteredMuxers) -> bool {
 364         for opt in opts.split(',') {
 365             let oval: Vec<_> = opt.split('=').collect();
 366             if oval.len() == 1 {
 367                 self.mux_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
 368             } else if oval.len() == 2 {
 369                 if oval[0] == "format" {
 370                     if mux_reg.find_muxer(oval[1]).is_some() {
 371                         self.output_fmt = Some(oval[1].to_string());
 372                     } else {
 373                         println!("unknown muxer format '{}'", oval[1]);
 374                     }
 375                 } else {
 376                     self.mux_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
 377                 }
 378             } else {
 379                 println!("unrecognized option '{}'", opt);
 380             }
 381         }
 382         true
 383     }
 384     fn apply_decoder_options(&self, dec: &mut NADecoder, str_id: u32) {
 385         if let Some(str_idx) = self.istr_opts.iter().position(|str| str.id == str_id) {
 386             let dec_opts = dec.get_supported_options();
 387             if dec_opts.is_empty() { return; }
 388             let name = format!("input stream {}", str_id);
 389             parse_and_apply_options!(dec, &self.istr_opts[str_idx].dec_opts, name);
 390         }
 391     }
 392     fn register_output_stream(&mut self, cname: &str, istr: NAStreamRef, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
 393         let out_id = out_sm.get_num_streams() as u32;
 394         if let Some(str_idx) = self.istr_opts.iter().position(|str| str.id == (istr.get_num() as u32)) {
 395             if self.istr_opts[str_idx].drop {
 396                 self.encoders.push(OutputMode::Drop);
 397                 return true;
 398             }
 399         }
 400
 401         if let Some(str_idx) = self.ostr_opts.iter().position(|str| str.id == out_id) {
 402             let oopts = &mut self.ostr_opts[str_idx];
 403             if oopts.enc_name.as_str() == "copy" && (cname == "any" || istr.get_info().get_name() == cname) {
 404                 out_sm.add_stream_ref(istr.clone());
 405                 self.encoders.push(OutputMode::Copy(out_id));
 406             } else if cname == "any" || oopts.enc_name.as_str() == cname {
 407                 let enc_create = enc_reg.find_encoder(oopts.enc_name.as_str());
 408                 if enc_create.is_none() {
 409                     println!("encoder '{}' not found", oopts.enc_name.as_str());
 410                     return false;
 411                 }
 412                 let mut encoder = (enc_create.unwrap())();
 413                 let forced_out = oopts.enc_params.format != NACodecTypeInfo::None;
 414                 if oopts.enc_params.format == NACodecTypeInfo::None {
 415                     oopts.enc_params.format = istr.get_info().get_properties();
 416                 }
 417                 if oopts.enc_params.tb_num == 0 {
 418                     oopts.enc_params.tb_num = istr.tb_num;
 419                     oopts.enc_params.tb_den = istr.tb_den;
 420                 }
 421                 let ret_eparams = encoder.negotiate_format(&oopts.enc_params);
 422                 if ret_eparams.is_err() {
 423                     println!("cannot negotiate encoding parameters");
 424                     return false;
 425                 }
 426                 let ret_eparams = ret_eparams.unwrap();
 427
 428 //todo check for params mismatch
 429                 let cvt = match (&oopts.enc_params.format, &ret_eparams.format) {
 430                         (NACodecTypeInfo::Video(svinfo), NACodecTypeInfo::Video(dvinfo)) => {
 431                             if svinfo == dvinfo && !forced_out {
 432                                 OutputConvert::None
 433                             } else {
 434                                 let ofmt = ScaleInfo { fmt: dvinfo.format, width: dvinfo.width, height: dvinfo.height };
 435                                 let ret = NAScale::new(ofmt, ofmt);
 436                                 if ret.is_err() {
 437                                     println!("cannot create scaler");
 438                                     return false;
 439                                 }
 440                                 let scaler = ret.unwrap();
 441                                 let ret = alloc_video_buffer(*dvinfo, 4);
 442                                 if ret.is_err() {
 443                                     println!("cannot create scaler buffer");
 444                                     return false;
 445                                 }
 446                                 let cvt_buf = ret.unwrap();
 447                                 OutputConvert::Video(scaler, cvt_buf)
 448                             }
 449                         },
 450                         (NACodecTypeInfo::Audio(sainfo), NACodecTypeInfo::Audio(dainfo)) => {
 451                             if sainfo == dainfo {
 452                                 OutputConvert::None
 453                             } else {
 454                                 let dchmap = match dainfo.channels {
 455                                         1 => NAChannelMap::from_ms_mapping(0x4),
 456                                         2 => NAChannelMap::from_ms_mapping(0x3),
 457                                         _ => {
 458 println!("can't generate default channel map for {} channels", dainfo.channels);
 459                                             return false;
 460                                         },
 461                                     };
 462 //todo channelmap
 463                                 OutputConvert::Audio(*dainfo, dchmap)
 464                             }
 465                         },
 466                         _ => OutputConvert::None,
 467                     };
 468                 let ret = encoder.init(out_id, ret_eparams);
 469                 if ret.is_err() {
 470                     println!("error initialising encoder");
 471                     return false;
 472                 }
 473                 out_sm.add_stream_ref(ret.unwrap());
 474
 475                 let name = format!("output stream {}", out_id);
 476                 parse_and_apply_options!(encoder, &oopts.enc_opts, name);
 477
 478                 self.encoders.push(OutputMode::Encode(out_id, encoder, cvt));
 479             } else {
 480 println!("encoder {} is not supported by output (expected {})", istr.id, istr.get_info().get_name());
 481                 return false;
 482             }
 483         } else {
 484             if cname == "any" || istr.get_info().get_name() == cname {
 485                 out_sm.add_stream_ref(istr.clone());
 486                 self.encoders.push(OutputMode::Copy(out_id));
 487             } else {
 488 println!("stream {} ({}) can't be handled", istr.id, istr.get_info().get_name());
 489 // todo autoselect encoder?
 490                 return false;
 491             }
 492         }
 493         true
 494     }
 495     fn map_single(&mut self, cname: &str, ctype: StreamType, src_sm: &StreamManager, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
 496         let mut found_stream = false;
 497         for istr in src_sm.iter() {
 498             if istr.get_media_type() != ctype || found_stream {
 499                 self.encoders.push(OutputMode::Drop);
 500             } else {
 501                 if !self.register_output_stream(cname, istr, out_sm, enc_reg) {
 502                     return false;
 503                 }
 504                 found_stream = true;
 505             }
 506         }
 507         found_stream
 508     }
 509     fn negotiate_stream_map(&mut self, src_sm: &StreamManager, mux_caps: MuxerCapabilities, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
 510         match mux_caps {
 511             MuxerCapabilities::SingleVideo(cname) => {
 512                 if self.no_video { return false; }
 513                 self.map_single(cname, StreamType::Video, src_sm, out_sm, enc_reg)
 514             },
 515             MuxerCapabilities::SingleAudio(cname) => {
 516                 if self.no_audio { return false; }
 517                 self.map_single(cname, StreamType::Audio, src_sm, out_sm, enc_reg)
 518             },
 519             MuxerCapabilities::SingleVideoAndAudio(vname, aname) => {
 520                 let mut found_vid = false;
 521                 let mut found_aud = false;
 522                 for istr in src_sm.iter() {
 523                     if istr.get_media_type() == StreamType::Video && !found_vid && !self.no_video {
 524                         if !self.register_output_stream(vname, istr, out_sm, enc_reg) {
 525                             return false;
 526                         }
 527                         found_vid = true;
 528                     } else if istr.get_media_type() == StreamType::Audio && !found_aud && !self.no_audio {
 529                         if !self.register_output_stream(aname, istr, out_sm, enc_reg) {
 530                             return false;
 531                         }
 532                         found_aud = true;
 533                     } else {
 534                         self.encoders.push(OutputMode::Drop);
 535                     }
 536                 }
 537                 found_vid | found_aud
 538             },
 539             MuxerCapabilities::OnlyVideo => {
 540                 if self.no_video { return false; }
 541
 542                 let mut found_vid = false;
 543                 for istr in src_sm.iter() {
 544                     if istr.get_media_type() == StreamType::Video && !found_vid {
 545                         if !self.register_output_stream("any", istr, out_sm, enc_reg) {
 546                             return false;
 547                         }
 548                         found_vid = true;
 549                     } else {
 550                         self.encoders.push(OutputMode::Drop);
 551                     }
 552                 }
 553                 found_vid
 554             },
 555             MuxerCapabilities::OnlyAudio => {
 556                 if self.no_audio { return false; }
 557
 558                 let mut found_aud = false;
 559                 for istr in src_sm.iter() {
 560                     if istr.get_media_type() == StreamType::Audio && !found_aud {
 561                         if !self.register_output_stream("any", istr, out_sm, enc_reg) {
 562                             return false;
 563                         }
 564                         found_aud = true;
 565                     } else {
 566                         self.encoders.push(OutputMode::Drop);
 567                     }
 568                 }
 569                 found_aud
 570             },
 571             MuxerCapabilities::Universal => {
 572                 for istr in src_sm.iter() {
 573                     if (istr.get_media_type() == StreamType::Video && self.no_video) ||
 574                         (istr.get_media_type() == StreamType::Audio && self.no_audio) {
 575                         self.encoders.push(OutputMode::Drop);
 576                         continue;
 577                     }
 578                     if !self.register_output_stream("any", istr, out_sm, enc_reg) {
 579                         return false;
 580                     }
 581                 }
 582                 true
 583             },
 584         }
 585     }
 586 }
 587
 588 macro_rules! next_arg {
 589     ($args: expr, $arg_idx: expr) => {
 590         if $arg_idx + 1 >= $args.len() {
 591             println!("codec name is required");
 592         }
 593         $arg_idx += 1;
 594     }
 595 }
 596
 597 fn main() {
 598     let args: Vec<_> = env::args().collect();
 599
 600     if args.len() == 1 {
 601         println!("usage: nihav-encoder [-noout] [-vn] [-an] input [lastpts]");
 602         return;
 603     }
 604
 605     let mut dmx_reg = RegisteredDemuxers::new();
 606     nihav_register_all_demuxers(&mut dmx_reg);
 607     let mut dec_reg = RegisteredDecoders::new();
 608     nihav_register_all_decoders(&mut dec_reg);
 609
 610     let mut mux_reg = RegisteredMuxers::new();
 611     nihav_register_all_muxers(&mut mux_reg);
 612     mux_reg.add_muxer(NULL_MUXER);
 613     let mut enc_reg = RegisteredEncoders::new();
 614     nihav_register_all_encoders(&mut enc_reg);
 615     enc_reg.add_encoder(NULL_ENCODER);
 616
 617     let mut transcoder = Transcoder::new();
 618
 619     let mut arg_idx = 1;
 620     let mut printed_info = false;
 621     while arg_idx < args.len() {
 622         match args[arg_idx].as_str() {
 623             "--list-decoders" => {
 624                 if dec_reg.iter().len() > 0 {
 625                     println!("Registered decoders:");
 626                     for dec in dec_reg.iter() {
 627                         let cdesc = register::get_codec_description(dec.name);
 628                         let full_name = if let Some(cd) = cdesc { cd.get_full_name() } else { "???" };
 629                         println!(" {} ({})", dec.name, full_name);
 630                     }
 631                 } else {
 632                     println!("No registered decoders.");
 633                 }
 634                 printed_info = true;
 635             },
 636             "--list-encoders" => {
 637                 if enc_reg.iter().len() > 0 {
 638                     println!("Registered encoders:");
 639                     for enc in enc_reg.iter() {
 640                         let cdesc = register::get_codec_description(enc.name);
 641                         let full_name = if let Some(cd) = cdesc { cd.get_full_name() } else { "???" };
 642                         println!(" {} ({})", enc.name, full_name);
 643                     }
 644                 } else {
 645                     println!("No registered encoders.");
 646                 }
 647                 printed_info = true;
 648             },
 649             "--list-demuxers" => {
 650                 print!("Registered demuxers:");
 651                 for dmx in dmx_reg.iter() {
 652                     print!(" {}", dmx.get_name());
 653                 }
 654                 println!();
 655                 printed_info = true;
 656             },
 657             "--list-muxers" => {
 658                 print!("Registered muxers:");
 659                 for mux in mux_reg.iter() {
 660                     print!(" {}", mux.get_name());
 661                 }
 662                 println!();
 663                 printed_info = true;
 664             },
 665             "--query-decoder-options" => {
 666                 next_arg!(args, arg_idx);
 667                 let cname = args[arg_idx].as_str();
 668                 if let Some(decfunc) = dec_reg.find_decoder(cname) {
 669                     let dec = (decfunc)();
 670                     let opts = dec.get_supported_options();
 671                     print_options(cname, opts);
 672                 } else {
 673                     println!("codec {} is not found", cname);
 674                 }
 675                 printed_info = true;
 676             },
 677             "--query-demuxer-options" => {
 678                 next_arg!(args, arg_idx);
 679                 let dname = args[arg_idx].as_str();
 680                 let mut mr = MemoryReader::new_read(&[]);
 681                 let mut br = ByteReader::new(&mut mr);
 682                 if let Some(dmx_creator) = dmx_reg.find_demuxer(dname) {
 683                     let dmx = dmx_creator.new_demuxer(&mut br);
 684                     let opts = dmx.get_supported_options();
 685                     print_options(dname, opts);
 686                 } else {
 687                     println!("demuxer {} is not found", dname);
 688                 }
 689                 printed_info = true;
 690             },
 691             "--query-encoder-options" => {
 692                 next_arg!(args, arg_idx);
 693                 let cname = args[arg_idx].as_str();
 694                 if let Some(encfunc) = enc_reg.find_encoder(cname) {
 695                     let enc = (encfunc)();
 696                     let opts = enc.get_supported_options();
 697                     print_options(cname, opts);
 698                 } else {
 699                     println!("codec {} is not found", cname);
 700                 }
 701                 printed_info = true;
 702             },
 703             "--query-muxer-options" => {
 704                 next_arg!(args, arg_idx);
 705                 let name = args[arg_idx].as_str();
 706                 let mut data = [];
 707                 let mut mw = MemoryWriter::new_write(&mut data);
 708                 let mut bw = ByteWriter::new(&mut mw);
 709                 if let Some(mux_creator) = mux_reg.find_muxer(name) {
 710                     let mux = mux_creator.new_muxer(&mut bw);
 711                     let opts = mux.get_supported_options();
 712                     print_options(name, opts);
 713                 } else {
 714                     println!("muxer {} is not found", name);
 715                 }
 716                 printed_info = true;
 717             },
 718             "--input" | "-i" => {
 719                 next_arg!(args, arg_idx);
 720                 transcoder.input_name = args[arg_idx].clone();
 721             },
 722             "--input-format" => {
 723                 next_arg!(args, arg_idx);
 724                 transcoder.input_fmt = Some(args[arg_idx].clone());
 725             },
 726             "--output" | "-o" => {
 727                 next_arg!(args, arg_idx);
 728                 transcoder.output_name = args[arg_idx].clone();
 729             },
 730             "--output-format" => {
 731                 next_arg!(args, arg_idx);
 732                 transcoder.output_fmt = Some(args[arg_idx].clone());
 733             },
 734             "--demuxer-options" => {
 735                 next_arg!(args, arg_idx);
 736                 if !transcoder.parse_demuxer_options(&args[arg_idx], &dmx_reg) {
 737                     println!("invalid demuxer option syntax");
 738                     return;
 739                 }
 740             },
 741             "--no-video" | "-vn" => {
 742                 transcoder.no_video = true;
 743             },
 744             "--no-audio" | "-an" => {
 745                 transcoder.no_audio = true;
 746             },
 747             "--start" => {
 748                 next_arg!(args, arg_idx);
 749                 let ret = args[arg_idx].parse::<NATimePoint>();
 750                 if let Ok(val) = ret {
 751                     transcoder.start = val;
 752                 } else {
 753                     println!("invalid start time");
 754                     return;
 755                 }
 756             },
 757             "--end" => {
 758                 next_arg!(args, arg_idx);
 759                 let ret = args[arg_idx].parse::<NATimePoint>();
 760                 if let Ok(val) = ret {
 761                     transcoder.end = val;
 762                 } else {
 763                     println!("invalid end time");
 764                     return;
 765                 }
 766             },
 767             "--muxer-options" => {
 768                 next_arg!(args, arg_idx);
 769                 if !transcoder.parse_muxer_options(&args[arg_idx], &mux_reg) {
 770                     println!("invalid muxer option syntax");
 771                     return;
 772                 }
 773             },
 774             _ => {
 775                 if args[arg_idx].starts_with("--istream") {
 776                     let opt0 = &args[arg_idx];
 777                     next_arg!(args, arg_idx);
 778                     if !transcoder.parse_istream_options(opt0, &args[arg_idx]) {
 779                         println!("invalid input stream option syntax");
 780                         return;
 781                     }
 782                 } else if args[arg_idx].starts_with("--ostream") {
 783                     let opt0 = &args[arg_idx];
 784                     next_arg!(args, arg_idx);
 785                     if !transcoder.parse_ostream_options(opt0, &args[arg_idx], &enc_reg) {
 786                         println!("invalid output stream option syntax");
 787                         return;
 788                     }
 789                 } else if args[arg_idx].starts_with("--") {
 790                     println!("unknown option");
 791                 } else {
 792                     println!("unrecognized argument");
 793                 }
 794             },
 795         };
 796         arg_idx += 1;
 797     }
 798
 799     if printed_info {
 800         return;
 801     }
 802
 803     if transcoder.input_name.len() == 0 {
 804         println!("no input name provided");
 805         return;
 806     }
 807     if transcoder.output_name.len() == 0 {
 808         println!("no output name provided");
 809         return;
 810     }
 811
 812     let res = File::open(transcoder.input_name.as_str());
 813     if res.is_err() {
 814         println!("error opening input");
 815         return;
 816     }
 817     let mut file = res.unwrap();
 818     let mut fr = FileReader::new_read(&mut file);
 819     let mut br = ByteReader::new(&mut fr);
 820
 821     let dmx_name = if let Some(ref str) = transcoder.input_fmt {
 822             str.as_str()
 823         } else {
 824             if let Some((dmx_name, score)) = detect::detect_format(transcoder.input_name.as_str(), &mut br) {
 825                 println!("detected {} with score {:?}", dmx_name, score);
 826                 dmx_name
 827             } else {
 828                 println!("cannot detect input format");
 829                 return;
 830             }
 831         };
 832     let ret = dmx_reg.find_demuxer(dmx_name);
 833     if ret.is_none() {
 834         println!("cannot find demuxer for '{}'", dmx_name);
 835         return;
 836     }
 837     let dmx_fact = ret.unwrap();
 838     br.seek(SeekFrom::Start(0)).unwrap();
 839     let mut dmx = create_demuxer(dmx_fact, &mut br).unwrap();
 840     parse_and_apply_options!(dmx, &transcoder.demux_opts, "input");
 841     for i in 0..dmx.get_num_streams() {
 842         let s = dmx.get_stream(i).unwrap();
 843         let info = s.get_info();
 844         let decfunc = dec_reg.find_decoder(info.get_name());
 845 println!("stream {} - {} {}", i, s, info.get_name());
 846         let str_id = s.get_num() as u32;
 847         if let Some(create_dec) = decfunc {
 848             let mut dec = (create_dec)();
 849             let mut dsupp = Box::new(NADecoderSupport::new());
 850             let ret = dec.init(&mut dsupp, info.clone());
 851             if ret.is_err() {
 852                 println!("Error initialising decoder '{}' for stream {}", info.get_name(), str_id);
 853                 return;
 854             }
 855             transcoder.apply_decoder_options(dec.as_mut(), str_id);
 856             transcoder.decoders.push(Some((dsupp, dec)));
 857         } else {
 858             println!("No decoder for stream {} ({}) is found", str_id, info.get_name());
 859             transcoder.decoders.push(None);
 860         }
 861     }
 862     if transcoder.start != NATimePoint::None {
 863         let ret = dmx.seek(transcoder.start);
 864         if ret.is_err() {
 865             println!(" failed to seek to {} error {:?}", transcoder.start, ret.err().unwrap());
 866         }
 867     }
 868
 869     let output_fmt = if let Some(ref str) = transcoder.output_fmt {
 870             str
 871         } else {
 872             if let Some(str) = detect::detect_format_by_name(transcoder.output_name.as_str()) {
 873                 str
 874             } else {
 875                 println!("Cannot guess muxer for output");
 876                 return;
 877             }
 878         };
 879     let ret = mux_reg.find_muxer(output_fmt);
 880     let ofmt = output_fmt.to_string();
 881
 882     if ret.is_none() {
 883         println!("cannot find muxer '{}'", output_fmt);
 884     }
 885     let mux_creator = ret.unwrap();
 886
 887     let mux_caps = mux_creator.get_capabilities();
 888     let mut out_sm = StreamManager::new();
 889     if !transcoder.negotiate_stream_map(dmx.get_stream_manager(), mux_caps, &mut out_sm, &enc_reg) {
 890         println!("cannot determine stream map");
 891         return;
 892     }
 893
 894     let ret = File::create(transcoder.output_name.as_str());
 895     if ret.is_err() {
 896         println!("cannot open output file");
 897         return;
 898     }
 899     let mut fw = FileWriter::new_write(ret.unwrap());
 900     let mut bw = ByteWriter::new(&mut fw);
 901     let ret = create_muxer(mux_creator, out_sm, &mut bw);
 902     if let Err(err) = ret {
 903         println!("cannot create muxer instance {:?}", err);
 904         return;
 905     }
 906     let mut mux = ret.unwrap();
 907     parse_and_apply_options!(mux, &transcoder.mux_opts, "output");
 908
 909     println!("Output {} muxer {}", transcoder.output_name, ofmt);
 910     for ostr in mux.get_streams() {
 911         println!(" #{}: {} {}", ostr.get_num(), ostr, ostr.get_info().get_name());
 912     }
 913
 914     'main_loop: loop {
 915         let pktres = dmx.get_frame();
 916         if let Err(DemuxerError::EOF) = pktres { break; }
 917         if pktres.is_err() {
 918             println!("demuxing error");
 919             break;
 920         }
 921         let mut pkt = pktres.unwrap();
 922         if transcoder.start != NATimePoint::None && pkt.ts.less_than(transcoder.start) { continue; }
 923         let src_id = pkt.get_stream().get_num();
 924         match transcoder.encoders[src_id] {
 925             OutputMode::Drop => {},
 926             OutputMode::Copy(dst_id) => {
 927                 let dstr = mux.get_stream(dst_id as usize).unwrap();
 928                 pkt.reassign(dstr, pkt.get_time_information());
 929                 if transcoder.end != NATimePoint::None && !pkt.ts.less_than(transcoder.end) { break 'main_loop; }
 930                 if mux.mux_frame(pkt).is_err() {
 931                     println!("error muxing packet");
 932                     break;
 933                 }
 934             },
 935             OutputMode::Encode(dst_id, ref mut encoder, ref mut cvt) => {
 936                 if let Some((ref mut dsupp, ref mut decoder)) = transcoder.decoders[src_id] {
 937                     let ret = decoder.decode(dsupp, &pkt);
 938                     if let (true, Err(DecoderError::MissingReference)) = (transcoder.start != NATimePoint::None, &ret) {
 939                         continue;
 940                     }
 941                     if ret.is_err() {
 942                         println!("error decoding stream {}", src_id);
 943                         break;
 944                     }
 945                     let frm = ret.unwrap();
 946                     let buf = frm.get_buffer();
 947                     let cbuf = match cvt {
 948                             OutputConvert::None => buf,
 949                             OutputConvert::Video(ref mut scaler, ref mut dbuf) => {
 950                                 let cur_ifmt = get_scale_fmt_from_pic(&buf);
 951                                 let last_ifmt = scaler.get_in_fmt();
 952                                 if cur_ifmt != last_ifmt {
 953                                     let ofmt = scaler.get_out_fmt();
 954                                     let ret = NAScale::new(cur_ifmt, ofmt);
 955                                     if ret.is_err() {
 956                                         println!("error re-initialising scaler for {} -> {}", cur_ifmt, ofmt);
 957                                         break;
 958                                     }
 959                                     *scaler = ret.unwrap();
 960                                 }
 961                                 let ret = scaler.convert(&buf, dbuf);
 962                                 if ret.is_err() {
 963                                     println!("error converting frame for encoding");
 964                                     break;
 965                                 }
 966                                 dbuf.clone()
 967                             },
 968                             OutputConvert::Audio(ref dinfo, ref dchmap) => {
 969                                 let ret = convert_audio_frame(&buf, dinfo, dchmap);
 970                                 if ret.is_err() {
 971                                     println!("error converting audio for stream {}", dst_id);
 972                                     break;
 973                                 }
 974                                 ret.unwrap()
 975                             },
 976                         };
 977                     let cfrm = NAFrame::new(frm.get_time_information(), frm.frame_type, frm.key, frm.get_info(), cbuf);
 978                     encoder.encode(&cfrm).unwrap();
 979                     while let Ok(Some(pkt)) = encoder.get_packet() {
 980                         if transcoder.end != NATimePoint::None && !pkt.ts.less_than(transcoder.end) { break 'main_loop; }
 981                         mux.mux_frame(pkt).unwrap();
 982                     }
 983                 } else {
 984                     println!("no decoder for stream {}", src_id);
 985                     break;
 986                 }
 987             },
 988         };
 989     }
 990     'flush_loop: for enc in transcoder.encoders.iter_mut() {
 991         match enc {
 992             OutputMode::Encode(str_id, ref mut encoder, _) => {
 993                 let ret = encoder.flush();
 994                 if ret.is_err() {
 995                     println!("error flushing encoder for stream {}", str_id);
 996                     break;
 997                 } else {
 998                     while let Ok(Some(pkt)) = encoder.get_packet() {
 999                         if mux.mux_frame(pkt).is_err() {
1000                             println!("error muxing packet");
1001                             break 'flush_loop;
1002                         }
1003                     }
1004                 }
1005             },
1006             _ => {},
1007         };
1008     }
1009
1010     let ret = mux.end();
1011     if ret.is_err() {
1012         println!("error at finalising muxing");
1013     }
1014 }