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::reorder::*;
  14 use nihav_core::scale::*;
  15 use nihav_core::soundcvt::*;
  16 use nihav_registry::detect;
  17 use nihav_registry::register;
  18 use nihav_allstuff::*;
  19 use std::env;
  20
  21 mod null;
  22 use crate::null::*;
  23
  24 fn print_options(name: &str, options: &[NAOptionDefinition]) {
  25     if options.is_empty() {
  26         println!("No custom options.");
  27     } else {
  28         println!("Options for '{}'", name);
  29         for opt in options.iter() {
  30             println!(" {}", opt);
  31         }
  32     }
  33 }
  34
  35 struct OptionArgs {
  36     name:   String,
  37     value:  Option<String>,
  38 }
  39
  40 struct InputStreamOptions {
  41     id:             u32,
  42     drop:           bool,
  43     dec_opts:       Vec<OptionArgs>,
  44 }
  45
  46 struct OutputStreamOptions {
  47     id:             u32,
  48     enc_params:     EncodeParameters,
  49     enc_name:       String,
  50     enc_opts:       Vec<OptionArgs>,
  51 }
  52
  53 enum OutputConvert {
  54     Video(NAScale, NABufferType),
  55     Audio(NAAudioInfo, NAChannelMap),
  56     None,
  57 }
  58
  59 #[allow(clippy::large_enum_variant)]
  60 enum OutputMode {
  61     Drop,
  62     Copy(u32),
  63     Encode(u32, Box<dyn NAEncoder>, OutputConvert),
  64 }
  65
  66 #[derive(Default)]
  67 #[allow(clippy::type_complexity)]
  68 struct Transcoder {
  69     input_name:     String,
  70     input_fmt:      Option<String>,
  71     output_name:    String,
  72     output_fmt:     Option<String>,
  73     demux_opts:     Vec<OptionArgs>,
  74     mux_opts:       Vec<OptionArgs>,
  75     istr_opts:      Vec<InputStreamOptions>,
  76     ostr_opts:      Vec<OutputStreamOptions>,
  77     decoders:       Vec<Option<(Box<NADecoderSupport>, Box<dyn NADecoder>, Box<dyn FrameReorderer>)>>,
  78     encoders:       Vec<OutputMode>,
  79     no_video:       bool,
  80     no_audio:       bool,
  81     start:          NATimePoint,
  82     end:            NATimePoint,
  83 }
  84
  85 macro_rules! parse_and_apply_options {
  86     ($obj: expr, $in_opts: expr, $name: expr) => {
  87         let mut opts = Vec::with_capacity($in_opts.len());
  88         let opt_def = $obj.get_supported_options();
  89         for opt in $in_opts.iter() {
  90             let mut found = false;
  91             for opt_def in opt_def.iter() {
  92                 let mut matches = opt.name == opt_def.name;
  93                 if !matches && opt.name.starts_with("no") {
  94                     let (_, name) = opt.name.split_at(2);
  95                     matches = name == opt_def.name;
  96                 }
  97                 if matches {
  98                     let arg = if let Some(ref str) = opt.value { Some(str) } else { None };
  99                     let ret = opt_def.parse(&opt.name, arg);
 100                     if let Ok((val, _)) = ret {
 101                         opts.push(val);
 102                     } else {
 103                         println!("invalid option {} for {}", opt.name, $name);
 104                     }
 105                     found = true;
 106                 }
 107             }
 108             if !found {
 109                 println!("  ignoring option '{}' for {}", opt.name, $name);
 110             }
 111         }
 112         $obj.set_options(opts.as_slice());
 113     }
 114 }
 115
 116 impl Transcoder {
 117     fn new() -> Self { Self::default() }
 118     fn parse_istream_options(&mut self, opt0: &str, opt1: &str) -> bool {
 119         let (_, strno) = opt0.split_at(9);
 120         let ret = strno.parse::<u32>();
 121         if ret.is_err() { return false; }
 122         let streamno = ret.unwrap();
 123
 124         let sidx = if let Some(idx) = self.istr_opts.iter().position(|str| str.id == streamno) {
 125                 idx
 126             } else {
 127                 self.istr_opts.push(InputStreamOptions {id: streamno, drop: false, dec_opts: Vec::new() });
 128                 self.istr_opts.len() - 1
 129             };
 130         let istr = &mut self.istr_opts[sidx];
 131
 132         for opt in opt1.split(',') {
 133             let oval: Vec<_> = opt.split('=').collect();
 134             if oval.len() == 1 {
 135                 match oval[0] {
 136                     "drop" => { istr.drop = true; },
 137                     _ => {
 138                         istr.dec_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
 139                     },
 140                 };
 141             } else if oval.len() == 2 {
 142                 istr.dec_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
 143             } else {
 144                 println!("unrecognized option '{}'", opt);
 145             }
 146         }
 147         true
 148     }
 149     fn parse_ostream_options(&mut self, opt0: &str, opt1: &str, enc_reg: &RegisteredEncoders) -> bool {
 150         let (_, strno) = opt0.split_at(9);
 151         let ret = strno.parse::<u32>();
 152         if ret.is_err() { return false; }
 153         let streamno = ret.unwrap();
 154
 155         let sidx = if let Some(idx) = self.ostr_opts.iter().position(|str| str.id == streamno) {
 156                 idx
 157             } else {
 158                 self.ostr_opts.push(OutputStreamOptions {id: streamno, enc_name: String::new(), enc_params: EncodeParameters::default(), enc_opts: Vec::new() });
 159                 self.ostr_opts.len() - 1
 160             };
 161         let ostr = &mut self.ostr_opts[sidx];
 162
 163         for opt in opt1.split(',') {
 164             let oval: Vec<_> = opt.split('=').collect();
 165             if oval.len() == 1 {
 166                 match oval[0] {
 167                     "flip" => {
 168                         if ostr.enc_params.format == NACodecTypeInfo::None {
 169                             ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
 170                         }
 171                         if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
 172                             vinfo.flipped = true;
 173                         } else {
 174                             println!("video option for audio stream");
 175                         }
 176                     },
 177                     "noflip" => {
 178                         if ostr.enc_params.format == NACodecTypeInfo::None {
 179                             ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
 180                         }
 181                         if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
 182                             vinfo.flipped = false;
 183                         } else {
 184                             println!("video option for audio stream");
 185                         }
 186                     },
 187                     _ => {
 188                         ostr.enc_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
 189                     },
 190                 };
 191             } else if oval.len() == 2 {
 192 //todo parse encoder options, store, init later
 193                 match oval[0] {
 194                     "timebase" => {
 195                         let mut parts = oval[1].split('/');
 196                         let num = parts.next().unwrap();
 197                         let den = parts.next();
 198                         if let Some(den) = den {
 199                             let rnum = num.parse::<u32>();
 200                             let rden = den.parse::<u32>();
 201                             if let (Ok(num), Ok(den)) = (rnum, rden) {
 202                                 ostr.enc_params.tb_num = num;
 203                                 ostr.enc_params.tb_den = den;
 204                             } else {
 205                                 println!("invalid timebase value");
 206                             }
 207                         } else {
 208                             println!("invalid timebase format (should be num/den)");
 209                         }
 210                     },
 211                     "encoder" => {
 212                         if enc_reg.find_encoder(oval[1]).is_some() {
 213                             ostr.enc_name = oval[1].to_string();
 214                         } else {
 215                             println!("unknown encoder '{}'", oval[1]);
 216                             ostr.enc_name = oval[1].to_string();
 217                         }
 218                     },
 219                     "width" => {
 220                         if ostr.enc_params.format == NACodecTypeInfo::None {
 221                             ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
 222                         }
 223                         if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
 224                             let ret = oval[1].parse::<usize>();
 225                             if let Ok(val) = ret {
 226                                 vinfo.width = val;
 227                             } else {
 228                                 println!("invalid width");
 229                             }
 230                         } else {
 231                             println!("video option for audio stream");
 232                         }
 233                     },
 234                     "height" => {
 235                         if ostr.enc_params.format == NACodecTypeInfo::None {
 236                             ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
 237                         }
 238                         if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
 239                             let ret = oval[1].parse::<usize>();
 240                             if let Ok(val) = ret {
 241                                 vinfo.height = val;
 242                             } else {
 243                                 println!("invalid height");
 244                             }
 245                         } else {
 246                             println!("video option for audio stream");
 247                         }
 248                     },
 249                     "pixfmt" => {
 250                         if ostr.enc_params.format == NACodecTypeInfo::None {
 251                             ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
 252                         }
 253                         if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
 254                             let ret = oval[1].parse::<NAPixelFormaton>();
 255                             if let Ok(val) = ret {
 256                                 vinfo.format = val;
 257                             } else {
 258                                 println!("invalid pixel format");
 259                             }
 260                         } else {
 261                             println!("video option for audio stream");
 262                         }
 263                     },
 264                     "srate" => {
 265                         if ostr.enc_params.format == NACodecTypeInfo::None {
 266                             ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
 267                         }
 268                         if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
 269                             let ret = oval[1].parse::<u32>();
 270                             if let Ok(val) = ret {
 271                                 ainfo.sample_rate = val;
 272                             } else {
 273                                 println!("invalid sampling rate");
 274                             }
 275                         } else {
 276                             println!("audio option for video stream");
 277                         }
 278                     },
 279                     "channels" => {
 280                         if ostr.enc_params.format == NACodecTypeInfo::None {
 281                             ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
 282                         }
 283                         if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
 284                             let ret = oval[1].parse::<u8>();
 285                             if let Ok(val) = ret {
 286                                 ainfo.channels = val;
 287                             } else {
 288                                 println!("invalid number of channels");
 289                             }
 290                         } else {
 291                             println!("audio option for video stream");
 292                         }
 293                     },
 294                     "block_len" => {
 295                         if ostr.enc_params.format == NACodecTypeInfo::None {
 296                             ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
 297                         }
 298                         if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
 299                             let ret = oval[1].parse::<usize>();
 300                             if let Ok(val) = ret {
 301                                 ainfo.block_len = val;
 302                             } else {
 303                                 println!("invalid block_length");
 304                             }
 305                         } else {
 306                             println!("audio option for video stream");
 307                         }
 308                     },
 309                     "sfmt" => {
 310                         if ostr.enc_params.format == NACodecTypeInfo::None {
 311                             ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
 312                         }
 313                         if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
 314                             let ret = oval[1].parse::<NASoniton>();
 315                             if let Ok(val) = ret {
 316                                 ainfo.format = val;
 317                             } else {
 318                                 println!("invalid audio format");
 319                             }
 320                         } else {
 321                             println!("audio option for video stream");
 322                         }
 323                     },
 324 // todo channel map negotiation
 325                     /*"chmap" => {
 326                         if ostr.enc_params.format == NACodecTypeInfo::None {
 327                             ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
 328                         }
 329                         if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
 330                             let ret = oval[1].parse::<NAChannelMap>();
 331                             if let Ok(val) = ret {
 332                                 ainfo.chmap = val;
 333                             } else {
 334                                 println!("invalid channel map");
 335                             }
 336                         } else {
 337                             println!("audio option for video stream");
 338                         }
 339                     },*/
 340                     "bitrate" => {
 341                         let ret = oval[1].parse::<u32>();
 342                         if let Ok(val) = ret {
 343                             ostr.enc_params.bitrate = val;
 344                         } else {
 345                             println!("invalid bitrate value");
 346                         }
 347                     },
 348                     "quality" => {
 349                         let ret = oval[1].parse::<u8>();
 350                         if let Ok(val) = ret {
 351                             ostr.enc_params.quality = val;
 352                         } else {
 353                             println!("invalid quality value");
 354                         }
 355                     },
 356                     _ => {
 357                         ostr.enc_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
 358                     },
 359                 }
 360             } else {
 361                 println!("unrecognized option '{}'", opt);
 362             }
 363         }
 364         true
 365     }
 366     fn parse_demuxer_options(&mut self, opts: &str, dmx_reg: &RegisteredDemuxers) -> bool {
 367         for opt in opts.split(',') {
 368             let oval: Vec<_> = opt.split('=').collect();
 369             if oval.len() == 1 {
 370                 self.demux_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
 371             } else if oval.len() == 2 {
 372                 if oval[0] == "format" {
 373                     if dmx_reg.find_demuxer(oval[1]).is_some() {
 374                         self.input_fmt = Some(oval[1].to_string());
 375                     } else {
 376                         println!("unknown demuxer format '{}'", oval[1]);
 377                     }
 378                 } else {
 379                     self.demux_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
 380                 }
 381             } else {
 382                 println!("unrecognized option '{}'", opt);
 383             }
 384         }
 385         true
 386     }
 387     fn parse_muxer_options(&mut self, opts: &str, mux_reg: &RegisteredMuxers) -> bool {
 388         for opt in opts.split(',') {
 389             let oval: Vec<_> = opt.split('=').collect();
 390             if oval.len() == 1 {
 391                 self.mux_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
 392             } else if oval.len() == 2 {
 393                 if oval[0] == "format" {
 394                     if mux_reg.find_muxer(oval[1]).is_some() {
 395                         self.output_fmt = Some(oval[1].to_string());
 396                     } else {
 397                         println!("unknown muxer format '{}'", oval[1]);
 398                     }
 399                 } else {
 400                     self.mux_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
 401                 }
 402             } else {
 403                 println!("unrecognized option '{}'", opt);
 404             }
 405         }
 406         true
 407     }
 408     fn apply_decoder_options(&self, dec: &mut dyn NADecoder, str_id: u32) {
 409         if let Some(str_idx) = self.istr_opts.iter().position(|str| str.id == str_id) {
 410             let dec_opts = dec.get_supported_options();
 411             if dec_opts.is_empty() { return; }
 412             let name = format!("input stream {}", str_id);
 413             parse_and_apply_options!(dec, &self.istr_opts[str_idx].dec_opts, name);
 414         }
 415     }
 416     fn register_output_stream(&mut self, cname: &str, istr: NAStreamRef, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
 417         let out_id = out_sm.get_num_streams() as u32;
 418         if let Some(str_idx) = self.istr_opts.iter().position(|str| str.id == (istr.get_num() as u32)) {
 419             if self.istr_opts[str_idx].drop {
 420                 self.encoders.push(OutputMode::Drop);
 421                 return true;
 422             }
 423         }
 424
 425         if let Some(str_idx) = self.ostr_opts.iter().position(|str| str.id == out_id) {
 426             let oopts = &mut self.ostr_opts[str_idx];
 427             if oopts.enc_name.as_str() == "copy" && (cname == "any" || istr.get_info().get_name() == cname) {
 428                 out_sm.add_stream_ref(istr);
 429                 self.encoders.push(OutputMode::Copy(out_id));
 430             } else if cname == "any" || oopts.enc_name.as_str() == cname {
 431                 let enc_create = enc_reg.find_encoder(oopts.enc_name.as_str());
 432                 if enc_create.is_none() {
 433                     println!("encoder '{}' not found", oopts.enc_name.as_str());
 434                     return false;
 435                 }
 436                 let mut encoder = (enc_create.unwrap())();
 437                 let forced_out = oopts.enc_params.format != NACodecTypeInfo::None;
 438                 if oopts.enc_params.format == NACodecTypeInfo::None {
 439                     oopts.enc_params.format = istr.get_info().get_properties();
 440                 }
 441                 if oopts.enc_params.tb_num == 0 {
 442                     oopts.enc_params.tb_num = istr.tb_num;
 443                     oopts.enc_params.tb_den = istr.tb_den;
 444                 }
 445                 let ret_eparams = encoder.negotiate_format(&oopts.enc_params);
 446                 if ret_eparams.is_err() {
 447                     println!("cannot negotiate encoding parameters");
 448                     return false;
 449                 }
 450                 let ret_eparams = ret_eparams.unwrap();
 451
 452 //todo check for params mismatch
 453                 let cvt = match (&oopts.enc_params.format, &ret_eparams.format) {
 454                         (NACodecTypeInfo::Video(svinfo), NACodecTypeInfo::Video(dvinfo)) => {
 455                             if svinfo == dvinfo && !forced_out {
 456                                 OutputConvert::None
 457                             } else {
 458                                 let ofmt = ScaleInfo { fmt: dvinfo.format, width: dvinfo.width, height: dvinfo.height };
 459                                 let ret = NAScale::new(ofmt, ofmt);
 460                                 if ret.is_err() {
 461                                     println!("cannot create scaler");
 462                                     return false;
 463                                 }
 464                                 let scaler = ret.unwrap();
 465                                 let ret = alloc_video_buffer(*dvinfo, 4);
 466                                 if ret.is_err() {
 467                                     println!("cannot create scaler buffer");
 468                                     return false;
 469                                 }
 470                                 let cvt_buf = ret.unwrap();
 471                                 OutputConvert::Video(scaler, cvt_buf)
 472                             }
 473                         },
 474                         (NACodecTypeInfo::Audio(sainfo), NACodecTypeInfo::Audio(dainfo)) => {
 475                             if sainfo == dainfo {
 476                                 OutputConvert::None
 477                             } else {
 478                                 let dchmap = match dainfo.channels {
 479                                         1 => NAChannelMap::from_ms_mapping(0x4),
 480                                         2 => NAChannelMap::from_ms_mapping(0x3),
 481                                         _ => {
 482 println!("can't generate default channel map for {} channels", dainfo.channels);
 483                                             return false;
 484                                         },
 485                                     };
 486 //todo channelmap
 487                                 OutputConvert::Audio(*dainfo, dchmap)
 488                             }
 489                         },
 490                         _ => OutputConvert::None,
 491                     };
 492                 let ret = encoder.init(out_id, ret_eparams);
 493                 if ret.is_err() {
 494                     println!("error initialising encoder");
 495                     return false;
 496                 }
 497                 out_sm.add_stream_ref(ret.unwrap());
 498
 499                 let name = format!("output stream {}", out_id);
 500                 parse_and_apply_options!(encoder, &oopts.enc_opts, name);
 501
 502                 self.encoders.push(OutputMode::Encode(out_id, encoder, cvt));
 503             } else {
 504 println!("encoder {} is not supported by output (expected {})", istr.id, istr.get_info().get_name());
 505                 return false;
 506             }
 507         } else if cname == "any" || istr.get_info().get_name() == cname {
 508             out_sm.add_stream_ref(istr);
 509             self.encoders.push(OutputMode::Copy(out_id));
 510         } else {
 511 println!("stream {} ({}) can't be handled", istr.id, istr.get_info().get_name());
 512 // todo autoselect encoder?
 513             return false;
 514         }
 515         true
 516     }
 517     fn map_single(&mut self, cname: &str, ctype: StreamType, src_sm: &StreamManager, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
 518         let mut found_stream = false;
 519         for istr in src_sm.iter() {
 520             if istr.get_media_type() != ctype || found_stream {
 521                 self.encoders.push(OutputMode::Drop);
 522             } else {
 523                 if !self.register_output_stream(cname, istr, out_sm, enc_reg) {
 524                     return false;
 525                 }
 526                 found_stream = true;
 527             }
 528         }
 529         found_stream
 530     }
 531     fn negotiate_stream_map(&mut self, src_sm: &StreamManager, mux_caps: MuxerCapabilities, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
 532         match mux_caps {
 533             MuxerCapabilities::SingleVideo(cname) => {
 534                 if self.no_video { return false; }
 535                 self.map_single(cname, StreamType::Video, src_sm, out_sm, enc_reg)
 536             },
 537             MuxerCapabilities::SingleAudio(cname) => {
 538                 if self.no_audio { return false; }
 539                 self.map_single(cname, StreamType::Audio, src_sm, out_sm, enc_reg)
 540             },
 541             MuxerCapabilities::SingleVideoAndAudio(vname, aname) => {
 542                 let mut found_vid = false;
 543                 let mut found_aud = false;
 544                 for istr in src_sm.iter() {
 545                     if istr.get_media_type() == StreamType::Video && !found_vid && !self.no_video {
 546                         if !self.register_output_stream(vname, istr, out_sm, enc_reg) {
 547                             return false;
 548                         }
 549                         found_vid = true;
 550                     } else if istr.get_media_type() == StreamType::Audio && !found_aud && !self.no_audio {
 551                         if !self.register_output_stream(aname, istr, out_sm, enc_reg) {
 552                             return false;
 553                         }
 554                         found_aud = true;
 555                     } else {
 556                         self.encoders.push(OutputMode::Drop);
 557                     }
 558                 }
 559                 found_vid | found_aud
 560             },
 561             MuxerCapabilities::OnlyVideo => {
 562                 if self.no_video { return false; }
 563
 564                 let mut found_vid = false;
 565                 for istr in src_sm.iter() {
 566                     if istr.get_media_type() == StreamType::Video && !found_vid {
 567                         if !self.register_output_stream("any", istr, out_sm, enc_reg) {
 568                             return false;
 569                         }
 570                         found_vid = true;
 571                     } else {
 572                         self.encoders.push(OutputMode::Drop);
 573                     }
 574                 }
 575                 found_vid
 576             },
 577             MuxerCapabilities::OnlyAudio => {
 578                 if self.no_audio { return false; }
 579
 580                 let mut found_aud = false;
 581                 for istr in src_sm.iter() {
 582                     if istr.get_media_type() == StreamType::Audio && !found_aud {
 583                         if !self.register_output_stream("any", istr, out_sm, enc_reg) {
 584                             return false;
 585                         }
 586                         found_aud = true;
 587                     } else {
 588                         self.encoders.push(OutputMode::Drop);
 589                     }
 590                 }
 591                 found_aud
 592             },
 593             MuxerCapabilities::Universal => {
 594                 for istr in src_sm.iter() {
 595                     if (istr.get_media_type() == StreamType::Video && self.no_video) ||
 596                         (istr.get_media_type() == StreamType::Audio && self.no_audio) {
 597                         self.encoders.push(OutputMode::Drop);
 598                         continue;
 599                     }
 600                     if !self.register_output_stream("any", istr, out_sm, enc_reg) {
 601                         return false;
 602                     }
 603                 }
 604                 true
 605             },
 606         }
 607     }
 608 }
 609
 610 fn encode_frame(dst_id: u32, encoder: &mut Box<dyn NAEncoder>, cvt: &mut OutputConvert, frm: NAFrameRef) -> bool {
 611     let buf = frm.get_buffer();
 612     let cbuf = match cvt {
 613             OutputConvert::None => buf,
 614             OutputConvert::Video(ref mut scaler, ref mut dbuf) => {
 615                 let cur_ifmt = get_scale_fmt_from_pic(&buf);
 616                 let last_ifmt = scaler.get_in_fmt();
 617                 if cur_ifmt != last_ifmt {
 618                     let ofmt = scaler.get_out_fmt();
 619                     let ret = NAScale::new(cur_ifmt, ofmt);
 620                     if ret.is_err() {
 621                         println!("error re-initialising scaler for {} -> {}", cur_ifmt, ofmt);
 622                         return false;
 623                     }
 624                     *scaler = ret.unwrap();
 625                 }
 626                 let ret = scaler.convert(&buf, dbuf);
 627                 if ret.is_err() {
 628                     println!("error converting frame for encoding");
 629                     return false;
 630                 }
 631                 dbuf.clone()
 632             },
 633             OutputConvert::Audio(ref dinfo, ref dchmap) => {
 634                 let ret = convert_audio_frame(&buf, dinfo, dchmap);
 635                 if ret.is_err() {
 636                     println!("error converting audio for stream {}", dst_id);
 637                     return false;
 638                 }
 639                 ret.unwrap()
 640             },
 641         };
 642     let cfrm = NAFrame::new(frm.get_time_information(), frm.frame_type, frm.key, frm.get_info(), cbuf);
 643     encoder.encode(&cfrm).unwrap();
 644     true
 645 }
 646
 647 macro_rules! next_arg {
 648     ($args: expr, $arg_idx: expr) => {
 649         if $arg_idx + 1 >= $args.len() {
 650             println!("codec name is required");
 651         }
 652         $arg_idx += 1;
 653     }
 654 }
 655
 656 #[allow(clippy::single_match)]
 657 fn main() {
 658     let args: Vec<_> = env::args().collect();
 659
 660     if args.len() == 1 {
 661         println!("usage: nihav-encoder [options] --input inputfile --output outputfile");
 662         println!(" use nihav-encoder --help to list all available options");
 663         return;
 664     }
 665     if args.len() == 2 && (args[1] == "--help" || args[1] == "-h") {
 666         println!("usage: nihav-encoder [options] --input inputfile --output outputfile");
 667         println!(" query options:");
 668         println!("  --list-{{decoders,encoders,demuxers,muxers}} - lists all available decoders/encoders/demuxers/muxers");
 669         println!("  --query-{{decoder,encoder,demuxer,muxer}}-options name - lists all options recognized by that decoder/encoder/demuxer/muxer");
 670         println!(" processing options:");
 671         println!("  --input inputfile           - set input file");
 672         println!("  --input-format fmt          - force input format");
 673         println!("  --demuxer-options options   - set input demuxer options");
 674         println!("  --output outputfile         - set output file");
 675         println!("  --output-format fmt         - force output format");
 676         println!("  --muxer-options options     - set output muxer options");
 677         println!("  --no-audio                  - do not decode audio streams");
 678         println!("  --no-video                  - do not decode video streams");
 679         println!("  --start starttime           - start decoding from given position");
 680         println!("  --end endtime               - end decoding at given position");
 681         println!("  --istreamX options          - set options for input stream X");
 682         println!("  --ostreamX options          - set options for output stream X");
 683         println!();
 684         println!(" (de)muxer and stream options are passed as comma-separated list e.g. --ostream0 width=320,height=240,flip");
 685         return;
 686     }
 687
 688     let mut dmx_reg = RegisteredDemuxers::new();
 689     nihav_register_all_demuxers(&mut dmx_reg);
 690     let mut dec_reg = RegisteredDecoders::new();
 691     nihav_register_all_decoders(&mut dec_reg);
 692
 693     let mut mux_reg = RegisteredMuxers::new();
 694     nihav_register_all_muxers(&mut mux_reg);
 695     mux_reg.add_muxer(NULL_MUXER);
 696     let mut enc_reg = RegisteredEncoders::new();
 697     nihav_register_all_encoders(&mut enc_reg);
 698     enc_reg.add_encoder(NULL_ENCODER);
 699
 700     let mut transcoder = Transcoder::new();
 701
 702     let mut arg_idx = 1;
 703     let mut printed_info = false;
 704     while arg_idx < args.len() {
 705         match args[arg_idx].as_str() {
 706             "--list-decoders" => {
 707                 if dec_reg.iter().len() > 0 {
 708                     println!("Registered decoders:");
 709                     for dec in dec_reg.iter() {
 710                         let cdesc = register::get_codec_description(dec.name);
 711                         let full_name = if let Some(cd) = cdesc { cd.get_full_name() } else { "???" };
 712                         println!(" {} ({})", dec.name, full_name);
 713                     }
 714                 } else {
 715                     println!("No registered decoders.");
 716                 }
 717                 printed_info = true;
 718             },
 719             "--list-encoders" => {
 720                 if enc_reg.iter().len() > 0 {
 721                     println!("Registered encoders:");
 722                     for enc in enc_reg.iter() {
 723                         let cdesc = register::get_codec_description(enc.name);
 724                         let full_name = if let Some(cd) = cdesc { cd.get_full_name() } else { "???" };
 725                         println!(" {} ({})", enc.name, full_name);
 726                     }
 727                 } else {
 728                     println!("No registered encoders.");
 729                 }
 730                 printed_info = true;
 731             },
 732             "--list-demuxers" => {
 733                 print!("Registered demuxers:");
 734                 for dmx in dmx_reg.iter() {
 735                     print!(" {}", dmx.get_name());
 736                 }
 737                 println!();
 738                 printed_info = true;
 739             },
 740             "--list-muxers" => {
 741                 print!("Registered muxers:");
 742                 for mux in mux_reg.iter() {
 743                     print!(" {}", mux.get_name());
 744                 }
 745                 println!();
 746                 printed_info = true;
 747             },
 748             "--query-decoder-options" => {
 749                 next_arg!(args, arg_idx);
 750                 let cname = args[arg_idx].as_str();
 751                 if let Some(decfunc) = dec_reg.find_decoder(cname) {
 752                     let dec = (decfunc)();
 753                     let opts = dec.get_supported_options();
 754                     print_options(cname, opts);
 755                 } else {
 756                     println!("codec {} is not found", cname);
 757                 }
 758                 printed_info = true;
 759             },
 760             "--query-demuxer-options" => {
 761                 next_arg!(args, arg_idx);
 762                 let dname = args[arg_idx].as_str();
 763                 let mut mr = MemoryReader::new_read(&[]);
 764                 let mut br = ByteReader::new(&mut mr);
 765                 if let Some(dmx_creator) = dmx_reg.find_demuxer(dname) {
 766                     let dmx = dmx_creator.new_demuxer(&mut br);
 767                     let opts = dmx.get_supported_options();
 768                     print_options(dname, opts);
 769                 } else {
 770                     println!("demuxer {} is not found", dname);
 771                 }
 772                 printed_info = true;
 773             },
 774             "--query-encoder-options" => {
 775                 next_arg!(args, arg_idx);
 776                 let cname = args[arg_idx].as_str();
 777                 if let Some(encfunc) = enc_reg.find_encoder(cname) {
 778                     let enc = (encfunc)();
 779                     let opts = enc.get_supported_options();
 780                     print_options(cname, opts);
 781                 } else {
 782                     println!("codec {} is not found", cname);
 783                 }
 784                 printed_info = true;
 785             },
 786             "--query-muxer-options" => {
 787                 next_arg!(args, arg_idx);
 788                 let name = args[arg_idx].as_str();
 789                 let mut data = [];
 790                 let mut mw = MemoryWriter::new_write(&mut data);
 791                 let mut bw = ByteWriter::new(&mut mw);
 792                 if let Some(mux_creator) = mux_reg.find_muxer(name) {
 793                     let mux = mux_creator.new_muxer(&mut bw);
 794                     let opts = mux.get_supported_options();
 795                     print_options(name, opts);
 796                 } else {
 797                     println!("muxer {} is not found", name);
 798                 }
 799                 printed_info = true;
 800             },
 801             "--input" | "-i" => {
 802                 next_arg!(args, arg_idx);
 803                 transcoder.input_name = args[arg_idx].clone();
 804             },
 805             "--input-format" => {
 806                 next_arg!(args, arg_idx);
 807                 transcoder.input_fmt = Some(args[arg_idx].clone());
 808             },
 809             "--output" | "-o" => {
 810                 next_arg!(args, arg_idx);
 811                 transcoder.output_name = args[arg_idx].clone();
 812             },
 813             "--output-format" => {
 814                 next_arg!(args, arg_idx);
 815                 transcoder.output_fmt = Some(args[arg_idx].clone());
 816             },
 817             "--demuxer-options" => {
 818                 next_arg!(args, arg_idx);
 819                 if !transcoder.parse_demuxer_options(&args[arg_idx], &dmx_reg) {
 820                     println!("invalid demuxer option syntax");
 821                     return;
 822                 }
 823             },
 824             "--no-video" | "-vn" => {
 825                 transcoder.no_video = true;
 826             },
 827             "--no-audio" | "-an" => {
 828                 transcoder.no_audio = true;
 829             },
 830             "--start" => {
 831                 next_arg!(args, arg_idx);
 832                 let ret = args[arg_idx].parse::<NATimePoint>();
 833                 if let Ok(val) = ret {
 834                     transcoder.start = val;
 835                 } else {
 836                     println!("invalid start time");
 837                     return;
 838                 }
 839             },
 840             "--end" => {
 841                 next_arg!(args, arg_idx);
 842                 let ret = args[arg_idx].parse::<NATimePoint>();
 843                 if let Ok(val) = ret {
 844                     transcoder.end = val;
 845                 } else {
 846                     println!("invalid end time");
 847                     return;
 848                 }
 849             },
 850             "--muxer-options" => {
 851                 next_arg!(args, arg_idx);
 852                 if !transcoder.parse_muxer_options(&args[arg_idx], &mux_reg) {
 853                     println!("invalid muxer option syntax");
 854                     return;
 855                 }
 856             },
 857             _ => {
 858                 if args[arg_idx].starts_with("--istream") {
 859                     let opt0 = &args[arg_idx];
 860                     next_arg!(args, arg_idx);
 861                     if !transcoder.parse_istream_options(opt0, &args[arg_idx]) {
 862                         println!("invalid input stream option syntax");
 863                         return;
 864                     }
 865                 } else if args[arg_idx].starts_with("--ostream") {
 866                     let opt0 = &args[arg_idx];
 867                     next_arg!(args, arg_idx);
 868                     if !transcoder.parse_ostream_options(opt0, &args[arg_idx], &enc_reg) {
 869                         println!("invalid output stream option syntax");
 870                         return;
 871                     }
 872                 } else if args[arg_idx].starts_with("--") {
 873                     println!("unknown option");
 874                 } else {
 875                     println!("unrecognized argument");
 876                 }
 877             },
 878         };
 879         arg_idx += 1;
 880     }
 881
 882     if printed_info {
 883         return;
 884     }
 885
 886     if transcoder.input_name.is_empty() {
 887         println!("no input name provided");
 888         return;
 889     }
 890     if transcoder.output_name.is_empty() {
 891         println!("no output name provided");
 892         return;
 893     }
 894
 895     let res = File::open(transcoder.input_name.as_str());
 896     if res.is_err() {
 897         println!("error opening input");
 898         return;
 899     }
 900     let mut file = res.unwrap();
 901     let mut fr = FileReader::new_read(&mut file);
 902     let mut br = ByteReader::new(&mut fr);
 903
 904     let dmx_name = if let Some(ref str) = transcoder.input_fmt {
 905             str.as_str()
 906         } else if let Some((dmx_name, score)) = detect::detect_format(transcoder.input_name.as_str(), &mut br) {
 907             println!("detected {} with score {:?}", dmx_name, score);
 908             dmx_name
 909         } else {
 910             println!("cannot detect input format");
 911             return;
 912         };
 913     let ret = dmx_reg.find_demuxer(dmx_name);
 914     if ret.is_none() {
 915         println!("cannot find demuxer for '{}'", dmx_name);
 916         return;
 917     }
 918     let dmx_fact = ret.unwrap();
 919     br.seek(SeekFrom::Start(0)).unwrap();
 920     let mut dmx = create_demuxer(dmx_fact, &mut br).unwrap();
 921     parse_and_apply_options!(dmx, &transcoder.demux_opts, "input");
 922     for i in 0..dmx.get_num_streams() {
 923         let s = dmx.get_stream(i).unwrap();
 924         let info = s.get_info();
 925         let decfunc = dec_reg.find_decoder(info.get_name());
 926 println!("stream {} - {} {}", i, s, info.get_name());
 927         let str_id = s.get_num() as u32;
 928         if let Some(create_dec) = decfunc {
 929             let mut dec = (create_dec)();
 930             let mut dsupp = Box::new(NADecoderSupport::new());
 931             let ret = dec.init(&mut dsupp, info.clone());
 932             if ret.is_err() {
 933                 println!("Error initialising decoder '{}' for stream {}", info.get_name(), str_id);
 934                 return;
 935             }
 936             transcoder.apply_decoder_options(dec.as_mut(), str_id);
 937             let desc = register::get_codec_description(info.get_name());
 938             let has_b = if let Some(desc) = desc {
 939                     desc.has_reorder()
 940                 } else {
 941                     println!("No codec description found, using B-frame reorderer.");
 942                     true
 943                 };
 944             let reord: Box<dyn FrameReorderer> = if has_b { Box::new(IPBReorderer::new()) } else { Box::new(NoReorderer::new()) };
 945             transcoder.decoders.push(Some((dsupp, dec, reord)));
 946         } else {
 947             println!("No decoder for stream {} ({}) is found", str_id, info.get_name());
 948             transcoder.decoders.push(None);
 949         }
 950     }
 951     if transcoder.start != NATimePoint::None {
 952         let ret = dmx.seek(transcoder.start);
 953         if ret.is_err() {
 954             println!(" failed to seek to {} error {:?}", transcoder.start, ret.err().unwrap());
 955         }
 956     }
 957
 958     let output_fmt = if let Some(ref str) = transcoder.output_fmt {
 959             str
 960         } else if let Some(str) = detect::detect_format_by_name(transcoder.output_name.as_str()) {
 961             str
 962         } else {
 963             println!("Cannot guess muxer for output");
 964             return;
 965         };
 966     let ret = mux_reg.find_muxer(output_fmt);
 967     let ofmt = output_fmt.to_string();
 968
 969     if ret.is_none() {
 970         println!("cannot find muxer '{}'", output_fmt);
 971     }
 972     let mux_creator = ret.unwrap();
 973
 974     let mux_caps = mux_creator.get_capabilities();
 975     let mut out_sm = StreamManager::new();
 976     if !transcoder.negotiate_stream_map(dmx.get_stream_manager(), mux_caps, &mut out_sm, &enc_reg) {
 977         println!("cannot determine stream map");
 978         return;
 979     }
 980
 981     let ret = File::create(transcoder.output_name.as_str());
 982     if ret.is_err() {
 983         println!("cannot open output file");
 984         return;
 985     }
 986     let mut fw = FileWriter::new_write(ret.unwrap());
 987     let mut bw = ByteWriter::new(&mut fw);
 988     let ret = create_muxer(mux_creator, out_sm, &mut bw);
 989     if let Err(err) = ret {
 990         println!("cannot create muxer instance {:?}", err);
 991         return;
 992     }
 993     let mut mux = ret.unwrap();
 994     parse_and_apply_options!(mux, &transcoder.mux_opts, "output");
 995
 996     println!("Output {} muxer {}", transcoder.output_name, ofmt);
 997     for ostr in mux.get_streams() {
 998         println!(" #{}: {} {}", ostr.get_num(), ostr, ostr.get_info().get_name());
 999     }
1000
1001     'main_loop: loop {
1002         let pktres = dmx.get_frame();
1003         if let Err(DemuxerError::EOF) = pktres { break; }
1004         if pktres.is_err() {
1005             println!("demuxing error");
1006             break;
1007         }
1008         let mut pkt = pktres.unwrap();
1009         if transcoder.start != NATimePoint::None && pkt.ts.less_than(transcoder.start) { continue; }
1010         let src_id = pkt.get_stream().get_num();
1011         match transcoder.encoders[src_id] {
1012             OutputMode::Drop => {},
1013             OutputMode::Copy(dst_id) => {
1014                 let dstr = mux.get_stream(dst_id as usize).unwrap();
1015                 pkt.reassign(dstr, pkt.get_time_information());
1016                 if transcoder.end != NATimePoint::None && !pkt.ts.less_than(transcoder.end) { break 'main_loop; }
1017                 if mux.mux_frame(pkt).is_err() {
1018                     println!("error muxing packet");
1019                     break;
1020                 }
1021             },
1022             OutputMode::Encode(dst_id, ref mut encoder, ref mut cvt) => {
1023                 if let Some((ref mut dsupp, ref mut decoder, ref mut reorderer)) = transcoder.decoders[src_id] {
1024                     let ret = decoder.decode(dsupp, &pkt);
1025                     if let (true, Err(DecoderError::MissingReference)) = (transcoder.start != NATimePoint::None, &ret) {
1026                         continue;
1027                     }
1028                     if ret.is_err() {
1029                         println!("error decoding stream {}", src_id);
1030                         break;
1031                     }
1032                     let frm = ret.unwrap();
1033                     reorderer.add_frame(frm);
1034                     while let Some(frm) = reorderer.get_frame() {
1035                         if !encode_frame(dst_id, encoder, cvt, frm) {
1036                             break;
1037                         }
1038                         while let Ok(Some(pkt)) = encoder.get_packet() {
1039                             if transcoder.end != NATimePoint::None && !pkt.ts.less_than(transcoder.end) { break 'main_loop; }
1040                             mux.mux_frame(pkt).unwrap();
1041                         }
1042                     }
1043                 } else {
1044                     println!("no decoder for stream {}", src_id);
1045                     break;
1046                 }
1047             },
1048         };
1049     }
1050     'reord_flush_loop: for str in dmx.get_streams() {
1051         let src_id = str.get_num();
1052         if let OutputMode::Encode(dst_id, ref mut encoder, ref mut cvt) = transcoder.encoders[src_id] {
1053             if let Some((_, _, ref mut reorderer)) = transcoder.decoders[src_id] {
1054                 while let Some(frm) = reorderer.get_last_frames() {
1055                     if !encode_frame(dst_id, encoder, cvt, frm) {
1056                         break;
1057                     }
1058                     while let Ok(Some(pkt)) = encoder.get_packet() {
1059                         if transcoder.end != NATimePoint::None && !pkt.ts.less_than(transcoder.end) { break 'reord_flush_loop; }
1060                         mux.mux_frame(pkt).unwrap();
1061                     }
1062                 }
1063             }
1064         }
1065     }
1066     'flush_loop: for enc in transcoder.encoders.iter_mut() {
1067         match enc {
1068             OutputMode::Encode(str_id, ref mut encoder, _) => {
1069                 let ret = encoder.flush();
1070                 if ret.is_err() {
1071                     println!("error flushing encoder for stream {}", str_id);
1072                     break;
1073                 } else {
1074                     while let Ok(Some(pkt)) = encoder.get_packet() {
1075                         if mux.mux_frame(pkt).is_err() {
1076                             println!("error muxing packet");
1077                             break 'flush_loop;
1078                         }
1079                     }
1080                 }
1081             },
1082             _ => {},
1083         };
1084     }
1085
1086     let ret = mux.end();
1087     if ret.is_err() {
1088         println!("error at finalising muxing");
1089     }
1090 }