1 extern crate nihav_core;
2 extern crate nihav_codec_support;
3 extern crate nihav_registry;
4 extern crate nihav_allstuff;
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::*;
23 fn print_options(name: &str, options: &[NAOptionDefinition]) {
24 if options.is_empty() {
25 println!("No custom options.");
27 println!("Options for '{}'", name);
28 for opt in options.iter() {
36 value: Option<String>,
39 struct InputStreamOptions {
42 dec_opts: Vec<OptionArgs>,
45 struct OutputStreamOptions {
47 enc_params: EncodeParameters,
49 enc_opts: Vec<OptionArgs>,
53 Video(NAScale, NABufferType),
54 Audio(NAAudioInfo, NAChannelMap),
61 Encode(u32, Box<dyn NAEncoder>, OutputConvert),
67 input_fmt: Option<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>,
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);
93 println!("invalid option {} for {}", opt.name, $name);
95 let (val, _) = ret.unwrap();
102 println!(" ignoring option '{}' for {}", opt.name, $name);
105 $obj.set_options(opts.as_slice());
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();
117 let sidx = if let Some(idx) = self.istr_opts.iter().position(|str| str.id == streamno) {
120 self.istr_opts.push(InputStreamOptions {id: streamno, drop: false, dec_opts: Vec::new() });
121 self.istr_opts.len() - 1
123 let istr = &mut self.istr_opts[sidx];
125 for opt in opt1.split(',') {
126 let oval: Vec<_> = opt.split('=').collect();
129 "drop" => { istr.drop = true; },
131 istr.dec_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
134 } else if oval.len() == 2 {
135 istr.dec_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
137 println!("unrecognized option '{}'", opt);
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();
148 let sidx = if let Some(idx) = self.ostr_opts.iter().position(|str| str.id == streamno) {
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
154 let ostr = &mut self.ostr_opts[sidx];
156 for opt in opt1.split(',') {
157 let oval: Vec<_> = opt.split('=').collect();
161 if ostr.enc_params.format == NACodecTypeInfo::None {
162 ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
164 if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
165 vinfo.flipped = true;
167 println!("video option for audio stream");
171 if ostr.enc_params.format == NACodecTypeInfo::None {
172 ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
174 if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
175 vinfo.flipped = false;
177 println!("video option for audio stream");
181 ostr.enc_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
184 } else if oval.len() == 2 {
185 //todo parse encoder options, store, init later
188 if enc_reg.find_encoder(oval[1]).is_some() {
189 ostr.enc_name = oval[1].to_string();
191 println!("unknown encoder '{}'", oval[1]);
192 ostr.enc_name = oval[1].to_string();
196 if ostr.enc_params.format == NACodecTypeInfo::None {
197 ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
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 {
204 println!("invalid width");
207 println!("video option for audio stream");
211 if ostr.enc_params.format == NACodecTypeInfo::None {
212 ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
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 {
219 println!("invalid height");
222 println!("video option for audio stream");
227 if ostr.enc_params.format == NACodecTypeInfo::None {
228 ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
230 if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
231 let ret = oval[1].parse::<u32>();
232 if let Ok(val) = ret {
233 ainfo.sample_rate = val;
235 println!("invalid sampling rate");
238 println!("audio option for video stream");
242 if ostr.enc_params.format == NACodecTypeInfo::None {
243 ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
245 if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
246 let ret = oval[1].parse::<u8>();
247 if let Ok(val) = ret {
248 ainfo.channels = val;
250 println!("invalid number of channels");
253 println!("audio option for video stream");
257 if ostr.enc_params.format == NACodecTypeInfo::None {
258 ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
260 if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
261 let ret = oval[1].parse::<usize>();
262 if let Ok(val) = ret {
263 ainfo.block_len = val;
265 println!("invalid block_length");
268 println!("audio option for video stream");
271 //todo soniton, channel map
273 let ret = oval[1].parse::<u32>();
274 if let Ok(val) = ret {
275 ostr.enc_params.bitrate = val;
277 println!("invalid bitrate value");
281 let ret = oval[1].parse::<u8>();
282 if let Ok(val) = ret {
283 ostr.enc_params.quality = val;
285 println!("invalid quality value");
289 ostr.enc_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
293 println!("unrecognized option '{}'", opt);
298 fn parse_demuxer_options(&mut self, opts: &str, dmx_reg: &RegisteredDemuxers) -> bool {
299 for opt in opts.split(',') {
300 let oval: Vec<_> = opt.split('=').collect();
302 self.demux_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
303 } else if oval.len() == 2 {
304 if oval[0] == "format" {
305 if dmx_reg.find_demuxer(oval[1]).is_some() {
306 self.input_fmt = Some(oval[1].to_string());
308 println!("unknown demuxer format '{}'", oval[1]);
311 self.demux_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
314 println!("unrecognized option '{}'", opt);
319 fn parse_muxer_options(&mut self, opts: &str, mux_reg: &RegisteredMuxers) -> bool {
320 for opt in opts.split(',') {
321 let oval: Vec<_> = opt.split('=').collect();
323 self.mux_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
324 } else if oval.len() == 2 {
325 if oval[0] == "format" {
326 if mux_reg.find_muxer(oval[1]).is_some() {
327 self.output_fmt = Some(oval[1].to_string());
329 println!("unknown muxer format '{}'", oval[1]);
332 self.mux_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
335 println!("unrecognized option '{}'", opt);
340 fn apply_decoder_options(&self, dec: &mut NADecoder, str_id: u32) {
341 if let Some(str_idx) = self.istr_opts.iter().position(|str| str.id == str_id) {
342 let dec_opts = dec.get_supported_options();
343 if dec_opts.is_empty() { return; }
344 let name = format!("input stream {}", str_id);
345 parse_and_apply_options!(dec, &self.istr_opts[str_idx].dec_opts, name);
348 fn register_output_stream(&mut self, cname: &str, istr: NAStreamRef, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
349 let out_id = out_sm.get_num_streams() as u32;
350 if let Some(str_idx) = self.istr_opts.iter().position(|str| str.id == (istr.get_num() as u32)) {
351 if self.istr_opts[str_idx].drop {
352 self.encoders.push(OutputMode::Drop);
357 if let Some(str_idx) = self.ostr_opts.iter().position(|str| str.id == out_id) {
358 let oopts = &mut self.ostr_opts[str_idx];
359 if oopts.enc_name.as_str() == "copy" && (cname == "any" || istr.get_info().get_name() == cname) {
360 out_sm.add_stream_ref(istr.clone());
361 self.encoders.push(OutputMode::Copy(out_id));
362 } else if cname == "any" || oopts.enc_name.as_str() == cname {
363 let enc_create = enc_reg.find_encoder(oopts.enc_name.as_str());
364 if enc_create.is_none() {
365 println!("encoder '{}' not found", oopts.enc_name.as_str());
368 let mut encoder = (enc_create.unwrap())();
369 if oopts.enc_params.format == NACodecTypeInfo::None {
370 oopts.enc_params.format = istr.get_info().get_properties();
372 if oopts.enc_params.tb_num == 0 {
373 oopts.enc_params.tb_num = istr.tb_num;
374 oopts.enc_params.tb_den = istr.tb_den;
376 let ret_eparams = encoder.negotiate_format(&oopts.enc_params);
377 if ret_eparams.is_err() {
378 println!("cannot negotiate encoding parameters");
381 let ret_eparams = ret_eparams.unwrap();
383 //todo check for params mismatch
384 let cvt = match (&oopts.enc_params.format, &ret_eparams.format) {
385 (NACodecTypeInfo::Video(svinfo), NACodecTypeInfo::Video(dvinfo)) => {
386 if svinfo == dvinfo {
389 let ofmt = ScaleInfo { fmt: dvinfo.format, width: dvinfo.width, height: dvinfo.height };
390 let ret = NAScale::new(ofmt, ofmt);
392 println!("cannot create scaler");
395 let scaler = ret.unwrap();
396 let ret = alloc_video_buffer(*dvinfo, 4);
398 println!("cannot create scaler buffer");
401 let cvt_buf = ret.unwrap();
402 OutputConvert::Video(scaler, cvt_buf)
405 (NACodecTypeInfo::Audio(sainfo), NACodecTypeInfo::Audio(dainfo)) => {
406 if sainfo == dainfo {
409 let dchmap = match dainfo.channels {
410 1 => NAChannelMap::from_ms_mapping(0x4),
411 2 => NAChannelMap::from_ms_mapping(0x3),
413 println!("can't generate default channel map for {} channels", dainfo.channels);
418 OutputConvert::Audio(*dainfo, dchmap)
421 _ => OutputConvert::None,
423 let ret = encoder.init(out_id, ret_eparams);
425 println!("error initialising encoder");
428 out_sm.add_stream_ref(ret.unwrap());
430 let name = format!("output stream {}", out_id);
431 parse_and_apply_options!(encoder, &oopts.enc_opts, name);
433 self.encoders.push(OutputMode::Encode(out_id, encoder, cvt));
435 println!("encoder {} is not supported by output (expected {})", istr.id, istr.get_info().get_name());
439 if cname == "any" || istr.get_info().get_name() == cname {
440 out_sm.add_stream_ref(istr.clone());
441 self.encoders.push(OutputMode::Copy(out_id));
443 println!("stream {} ({}) can't be handled", istr.id, istr.get_info().get_name());
444 // todo autoselect encoder?
450 fn map_single(&mut self, cname: &str, ctype: StreamType, src_sm: &StreamManager, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
451 let mut found_stream = false;
452 for istr in src_sm.iter() {
453 if istr.get_media_type() != ctype || found_stream {
454 self.encoders.push(OutputMode::Drop);
456 if !self.register_output_stream(cname, istr, out_sm, enc_reg) {
464 fn negotiate_stream_map(&mut self, src_sm: &StreamManager, mux_caps: MuxerCapabilities, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
466 MuxerCapabilities::SingleVideo(cname) => {
467 if self.no_video { return false; }
468 self.map_single(cname, StreamType::Video, src_sm, out_sm, enc_reg)
470 MuxerCapabilities::SingleAudio(cname) => {
471 if self.no_audio { return false; }
472 self.map_single(cname, StreamType::Audio, src_sm, out_sm, enc_reg)
474 MuxerCapabilities::SingleVideoAndAudio(vname, aname) => {
475 let mut found_vid = false;
476 let mut found_aud = false;
477 for istr in src_sm.iter() {
478 if istr.get_media_type() == StreamType::Video && !found_vid && !self.no_video {
479 if !self.register_output_stream(vname, istr, out_sm, enc_reg) {
483 } else if istr.get_media_type() == StreamType::Audio && !found_aud && !self.no_audio {
484 if !self.register_output_stream(aname, istr, out_sm, enc_reg) {
489 self.encoders.push(OutputMode::Drop);
492 found_vid | found_aud
494 MuxerCapabilities::OnlyVideo => {
495 if self.no_video { return false; }
497 let mut found_vid = false;
498 for istr in src_sm.iter() {
499 if istr.get_media_type() == StreamType::Video && !found_vid {
500 if !self.register_output_stream("any", istr, out_sm, enc_reg) {
505 self.encoders.push(OutputMode::Drop);
510 MuxerCapabilities::OnlyAudio => {
511 if self.no_audio { return false; }
513 let mut found_aud = false;
514 for istr in src_sm.iter() {
515 if istr.get_media_type() == StreamType::Audio && !found_aud {
516 if !self.register_output_stream("any", istr, out_sm, enc_reg) {
521 self.encoders.push(OutputMode::Drop);
526 MuxerCapabilities::Universal => {
527 for istr in src_sm.iter() {
528 if (istr.get_media_type() == StreamType::Video && self.no_video) ||
529 (istr.get_media_type() == StreamType::Audio && self.no_audio) {
530 self.encoders.push(OutputMode::Drop);
533 if !self.register_output_stream("any", istr, out_sm, enc_reg) {
543 macro_rules! next_arg {
544 ($args: expr, $arg_idx: expr) => {
545 if $arg_idx + 1 >= $args.len() {
546 println!("codec name is required");
553 let args: Vec<_> = env::args().collect();
556 println!("usage: nihav-encoder [-noout] [-vn] [-an] input [lastpts]");
560 let mut dmx_reg = RegisteredDemuxers::new();
561 nihav_register_all_demuxers(&mut dmx_reg);
562 let mut dec_reg = RegisteredDecoders::new();
563 nihav_register_all_decoders(&mut dec_reg);
565 let mut mux_reg = RegisteredMuxers::new();
566 nihav_register_all_muxers(&mut mux_reg);
567 mux_reg.add_muxer(NULL_MUXER);
568 let mut enc_reg = RegisteredEncoders::new();
569 nihav_register_all_encoders(&mut enc_reg);
570 enc_reg.add_encoder(NULL_ENCODER);
572 let mut transcoder = Transcoder::new();
575 let mut printed_info = false;
576 while arg_idx < args.len() {
577 match args[arg_idx].as_str() {
578 "--list-decoders" => {
579 if dec_reg.iter().len() > 0 {
580 println!("Registered decoders:");
581 for dec in dec_reg.iter() {
582 let cdesc = register::get_codec_description(dec.name);
583 let full_name = if let Some(cd) = cdesc { cd.get_full_name() } else { "???" };
584 println!(" {} ({})", dec.name, full_name);
587 println!("No registered decoders.");
591 "--list-encoders" => {
592 if enc_reg.iter().len() > 0 {
593 println!("Registered encoders:");
594 for enc in enc_reg.iter() {
595 let cdesc = register::get_codec_description(enc.name);
596 let full_name = if let Some(cd) = cdesc { cd.get_full_name() } else { "???" };
597 println!(" {} ({})", enc.name, full_name);
600 println!("No registered encoders.");
604 "--list-demuxers" => {
605 print!("Registered demuxers:");
606 for dmx in dmx_reg.iter() {
607 print!(" {}", dmx.get_name());
613 print!("Registered muxers:");
614 for mux in mux_reg.iter() {
615 print!(" {}", mux.get_name());
620 "--query-decoder-options" => {
621 next_arg!(args, arg_idx);
622 let cname = args[arg_idx].as_str();
623 if let Some(decfunc) = dec_reg.find_decoder(cname) {
624 let dec = (decfunc)();
625 let opts = dec.get_supported_options();
626 print_options(cname, opts);
628 println!("codec {} is not found", cname);
632 "--query-demuxer-options" => {
633 next_arg!(args, arg_idx);
634 let dname = args[arg_idx].as_str();
635 let mut mr = MemoryReader::new_read(&[]);
636 let mut br = ByteReader::new(&mut mr);
637 if let Some(dmx_creator) = dmx_reg.find_demuxer(dname) {
638 let dmx = dmx_creator.new_demuxer(&mut br);
639 let opts = dmx.get_supported_options();
640 print_options(dname, opts);
642 println!("demuxer {} is not found", dname);
646 "--query-encoder-options" => {
647 next_arg!(args, arg_idx);
648 let cname = args[arg_idx].as_str();
649 if let Some(encfunc) = enc_reg.find_encoder(cname) {
650 let enc = (encfunc)();
651 let opts = enc.get_supported_options();
652 print_options(cname, opts);
654 println!("codec {} is not found", cname);
658 "--query-muxer-options" => {
659 next_arg!(args, arg_idx);
660 let name = args[arg_idx].as_str();
662 let mut mw = MemoryWriter::new_write(&mut data);
663 let mut bw = ByteWriter::new(&mut mw);
664 if let Some(mux_creator) = mux_reg.find_muxer(name) {
665 let mux = mux_creator.new_muxer(&mut bw);
666 let opts = mux.get_supported_options();
667 print_options(name, opts);
669 println!("muxer {} is not found", name);
674 next_arg!(args, arg_idx);
675 transcoder.input_name = args[arg_idx].clone();
677 "--input-format" => {
678 next_arg!(args, arg_idx);
679 transcoder.input_fmt = Some(args[arg_idx].clone());
682 next_arg!(args, arg_idx);
683 transcoder.output_name = args[arg_idx].clone();
685 "--output-format" => {
686 next_arg!(args, arg_idx);
687 transcoder.output_fmt = Some(args[arg_idx].clone());
689 "--demuxer-options" => {
690 next_arg!(args, arg_idx);
691 if !transcoder.parse_demuxer_options(&args[arg_idx], &dmx_reg) {
692 println!("invalid demuxer option syntax");
697 transcoder.no_video = true;
700 transcoder.no_audio = true;
703 next_arg!(args, arg_idx);
704 let ret = args[arg_idx].parse::<NATimePoint>();
705 if let Ok(val) = ret {
706 transcoder.start = val;
708 println!("invalid start time");
713 next_arg!(args, arg_idx);
714 let ret = args[arg_idx].parse::<NATimePoint>();
715 if let Ok(val) = ret {
716 transcoder.end = val;
718 println!("invalid start time");
722 "--muxer-options" => {
723 next_arg!(args, arg_idx);
724 if !transcoder.parse_muxer_options(&args[arg_idx], &mux_reg) {
725 println!("invalid muxer option syntax");
730 if args[arg_idx].starts_with("--istream") {
731 let opt0 = &args[arg_idx];
732 next_arg!(args, arg_idx);
733 if !transcoder.parse_istream_options(opt0, &args[arg_idx]) {
734 println!("invalid input stream option syntax");
737 } else if args[arg_idx].starts_with("--ostream") {
738 let opt0 = &args[arg_idx];
739 next_arg!(args, arg_idx);
740 if !transcoder.parse_ostream_options(opt0, &args[arg_idx], &enc_reg) {
741 println!("invalid output stream option syntax");
744 } else if args[arg_idx].starts_with("--") {
745 println!("unknown option");
747 println!("unrecognized argument");
758 if transcoder.input_name.len() == 0 {
759 println!("no input name provided");
762 if transcoder.output_name.len() == 0 {
763 println!("no output name provided");
767 let res = File::open(transcoder.input_name.as_str());
769 println!("error opening input");
772 let mut file = res.unwrap();
773 let mut fr = FileReader::new_read(&mut file);
774 let mut br = ByteReader::new(&mut fr);
776 let dmx_name = if let Some(ref str) = transcoder.input_fmt {
779 if let Some((dmx_name, score)) = detect::detect_format(transcoder.input_name.as_str(), &mut br) {
780 println!("detected {} with score {:?}", dmx_name, score);
783 println!("cannot detect input format");
787 let ret = dmx_reg.find_demuxer(dmx_name);
789 println!("cannot find demuxer for '{}'", dmx_name);
792 let dmx_fact = ret.unwrap();
793 br.seek(SeekFrom::Start(0)).unwrap();
794 let mut dmx = create_demuxer(dmx_fact, &mut br).unwrap();
795 parse_and_apply_options!(dmx, &transcoder.demux_opts, "input");
796 for i in 0..dmx.get_num_streams() {
797 let s = dmx.get_stream(i).unwrap();
798 let info = s.get_info();
799 let decfunc = dec_reg.find_decoder(info.get_name());
800 println!("stream {} - {} {}", i, s, info.get_name());
801 let str_id = s.get_num() as u32;
802 if let Some(create_dec) = decfunc {
803 let mut dec = (create_dec)();
804 let mut dsupp = Box::new(NADecoderSupport::new());
805 let ret = dec.init(&mut dsupp, info.clone());
807 println!("Error initialising decoder '{}' for stream {}", info.get_name(), str_id);
810 transcoder.apply_decoder_options(dec.as_mut(), str_id);
811 transcoder.decoders.push(Some((dsupp, dec)));
813 println!("No decoder for stream {} ({}) is found", str_id, info.get_name());
814 transcoder.decoders.push(None);
817 if transcoder.start != NATimePoint::None {
818 let ret = dmx.seek(transcoder.start);
820 println!(" failed to seek to {} error {:?}", transcoder.start, ret.err().unwrap());
824 let output_fmt = if let Some(ref str) = transcoder.output_fmt {
827 if let Some(str) = detect::detect_format_by_name(transcoder.output_name.as_str()) {
830 println!("Cannot guess muxer for output");
834 let ret = mux_reg.find_muxer(output_fmt);
835 let ofmt = output_fmt.to_string();
838 println!("cannot find muxer '{}'", output_fmt);
840 let mux_creator = ret.unwrap();
842 let mux_caps = mux_creator.get_capabilities();
843 let mut out_sm = StreamManager::new();
844 if !transcoder.negotiate_stream_map(dmx.get_stream_manager(), mux_caps, &mut out_sm, &enc_reg) {
845 println!("cannot determine stream map");
849 let ret = File::create(transcoder.output_name.as_str());
851 println!("cannot open output file");
854 let mut fw = FileWriter::new_write(ret.unwrap());
855 let mut bw = ByteWriter::new(&mut fw);
856 let ret = create_muxer(mux_creator, out_sm, &mut bw);
857 if let Err(err) = ret {
858 println!("cannot create muxer instance {:?}", err);
861 let mut mux = ret.unwrap();
862 parse_and_apply_options!(mux, &transcoder.mux_opts, "output");
864 println!("Output {} muxer {}", transcoder.output_name, ofmt);
865 for ostr in mux.get_streams() {
866 println!(" #{}: {} {}", ostr.get_num(), ostr, ostr.get_info().get_name());
870 let pktres = dmx.get_frame();
871 if let Err(DemuxerError::EOF) = pktres { break; }
873 println!("demuxing error");
876 let mut pkt = pktres.unwrap();
877 let src_id = pkt.get_stream().get_num();
878 match transcoder.encoders[src_id] {
879 OutputMode::Drop => {},
880 OutputMode::Copy(dst_id) => {
881 let dstr = mux.get_stream(dst_id as usize).unwrap();
882 pkt.reassign(dstr, pkt.get_time_information());
883 if transcoder.end != NATimePoint::None && !pkt.ts.less_than(transcoder.end) { break 'main_loop; }
884 if mux.mux_frame(pkt).is_err() {
885 println!("error muxing packet");
889 OutputMode::Encode(dst_id, ref mut encoder, ref mut cvt) => {
890 if let Some((ref mut dsupp, ref mut decoder)) = transcoder.decoders[src_id] {
891 let ret = decoder.decode(dsupp, &pkt);
893 println!("error decoding stream {}", src_id);
896 let frm = ret.unwrap();
897 let buf = frm.get_buffer();
898 let cbuf = match cvt {
899 OutputConvert::None => buf,
900 OutputConvert::Video(ref mut scaler, ref mut dbuf) => {
901 let cur_ifmt = get_scale_fmt_from_pic(&buf);
902 let last_ifmt = scaler.get_in_fmt();
903 if cur_ifmt != last_ifmt {
904 let ofmt = scaler.get_out_fmt();
905 let ret = NAScale::new(cur_ifmt, ofmt);
907 println!("error re-initialising scaler for {} -> {}", cur_ifmt, ofmt);
910 *scaler = ret.unwrap();
912 let ret = scaler.convert(&buf, dbuf);
914 println!("error converting frame for encoding");
919 OutputConvert::Audio(ref dinfo, ref dchmap) => {
920 let ret = convert_audio_frame(&buf, dinfo, dchmap);
922 println!("error converting audio for stream {}", dst_id);
928 let cfrm = NAFrame::new(frm.get_time_information(), frm.frame_type, frm.key, frm.get_info(), cbuf);
929 encoder.encode(&cfrm).unwrap();
930 while let Ok(Some(pkt)) = encoder.get_packet() {
931 if transcoder.end != NATimePoint::None && !pkt.ts.less_than(transcoder.end) { break 'main_loop; }
932 mux.mux_frame(pkt).unwrap();
935 println!("no decoder for stream {}", src_id);
941 'flush_loop: for enc in transcoder.encoders.iter_mut() {
943 OutputMode::Encode(str_id, ref mut encoder, _) => {
944 let ret = encoder.flush();
946 println!("error flushing encoder for stream {}", str_id);
949 while let Ok(Some(pkt)) = encoder.get_packet() {
950 if mux.mux_frame(pkt).is_err() {
951 println!("error muxing packet");
963 println!("error at finalising muxing");