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_allstuff::*;
19 fn print_options(name: &str, options: &[NAOptionDefinition]) {
20 if options.is_empty() {
21 println!("No custom options.");
23 println!("Options for '{}'", name);
24 for opt in options.iter() {
32 value: Option<String>,
35 struct InputStreamOptions {
38 dec_opts: Vec<OptionArgs>,
41 struct OutputStreamOptions {
43 enc_params: EncodeParameters,
45 enc_opts: Vec<OptionArgs>,
49 Video(NAScale, NABufferType),
50 Audio(NAAudioInfo, NAChannelMap),
57 Encode(u32, Box<dyn NAEncoder>, OutputConvert),
63 input_fmt: Option<String>,
65 output_fmt: Option<String>,
66 demux_opts: Vec<OptionArgs>,
67 mux_opts: Vec<OptionArgs>,
68 istr_opts: Vec<InputStreamOptions>,
69 ostr_opts: Vec<OutputStreamOptions>,
70 decoders: Vec<Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)>>,
71 encoders: Vec<OutputMode>,
76 macro_rules! parse_and_apply_options {
77 ($obj: expr, $in_opts: expr, $name: expr) => {
78 let mut opts = Vec::with_capacity($in_opts.len());
79 let opt_def = $obj.get_supported_options();
80 for opt in $in_opts.iter() {
81 let mut found = false;
82 for opt_def in opt_def.iter() {
83 if opt.name == opt_def.name {
84 let arg = if let Some(ref str) = opt.value { Some(str) } else { None };
85 let ret = opt_def.parse(&opt.name, arg);
87 println!("invalid option {} for {}", opt.name, $name);
89 let (val, _) = ret.unwrap();
96 println!(" ignoring option '{}' for {}", opt.name, $name);
99 $obj.set_options(opts.as_slice());
104 fn new() -> Self { Self::default() }
105 fn parse_istream_options(&mut self, opt0: &str, opt1: &str) -> bool {
106 let (_, strno) = opt0.split_at(9);
107 let ret = strno.parse::<u32>();
108 if ret.is_err() { return false; }
109 let streamno = ret.unwrap();
111 let sidx = if let Some(idx) = self.istr_opts.iter().position(|str| str.id == streamno) {
114 self.istr_opts.push(InputStreamOptions {id: streamno, drop: false, dec_opts: Vec::new() });
115 self.istr_opts.len() - 1
117 let istr = &mut self.istr_opts[sidx];
119 for opt in opt1.split(',') {
120 let oval: Vec<_> = opt.split('=').collect();
123 "drop" => { istr.drop = true; },
125 istr.dec_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
128 } else if oval.len() == 2 {
129 istr.dec_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
131 println!("unrecognized option '{}'", opt);
136 fn parse_ostream_options(&mut self, opt0: &str, opt1: &str, enc_reg: &RegisteredEncoders) -> bool {
137 let (_, strno) = opt0.split_at(9);
138 let ret = strno.parse::<u32>();
139 if ret.is_err() { return false; }
140 let streamno = ret.unwrap();
142 let sidx = if let Some(idx) = self.ostr_opts.iter().position(|str| str.id == streamno) {
145 self.ostr_opts.push(OutputStreamOptions {id: streamno, enc_name: String::new(), enc_params: EncodeParameters::default(), enc_opts: Vec::new() });
146 self.ostr_opts.len() - 1
148 let ostr = &mut self.ostr_opts[sidx];
150 for opt in opt1.split(',') {
151 let oval: Vec<_> = opt.split('=').collect();
155 if ostr.enc_params.format == NACodecTypeInfo::None {
156 ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
158 if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
159 vinfo.flipped = true;
161 println!("video option for audio stream");
165 if ostr.enc_params.format == NACodecTypeInfo::None {
166 ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
168 if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
169 vinfo.flipped = false;
171 println!("video option for audio stream");
175 ostr.enc_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
178 } else if oval.len() == 2 {
179 //todo parse encoder options, store, init later
182 if enc_reg.find_encoder(oval[1]).is_some() {
183 ostr.enc_name = oval[1].to_string();
185 println!("unknown encoder '{}'", oval[1]);
186 ostr.enc_name = oval[1].to_string();
190 if ostr.enc_params.format == NACodecTypeInfo::None {
191 ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
193 if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
194 let ret = oval[1].parse::<usize>();
195 if let Ok(val) = ret {
198 println!("invalid width");
201 println!("video option for audio stream");
205 if ostr.enc_params.format == NACodecTypeInfo::None {
206 ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
208 if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
209 let ret = oval[1].parse::<usize>();
210 if let Ok(val) = ret {
213 println!("invalid height");
216 println!("video option for audio stream");
221 if ostr.enc_params.format == NACodecTypeInfo::None {
222 ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
224 if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
225 let ret = oval[1].parse::<u32>();
226 if let Ok(val) = ret {
227 ainfo.sample_rate = val;
229 println!("invalid sampling rate");
232 println!("audio option for video stream");
236 if ostr.enc_params.format == NACodecTypeInfo::None {
237 ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
239 if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
240 let ret = oval[1].parse::<u8>();
241 if let Ok(val) = ret {
242 ainfo.channels = val;
244 println!("invalid number of channels");
247 println!("audio option for video stream");
251 if ostr.enc_params.format == NACodecTypeInfo::None {
252 ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
254 if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
255 let ret = oval[1].parse::<usize>();
256 if let Ok(val) = ret {
257 ainfo.block_len = val;
259 println!("invalid block_length");
262 println!("audio option for video stream");
265 //todo soniton, channel map
267 let ret = oval[1].parse::<u32>();
268 if let Ok(val) = ret {
269 ostr.enc_params.bitrate = val;
271 println!("invalid bitrate value");
275 let ret = oval[1].parse::<u8>();
276 if let Ok(val) = ret {
277 ostr.enc_params.quality = val;
279 println!("invalid quality value");
283 ostr.enc_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
287 println!("unrecognized option '{}'", opt);
292 fn parse_demuxer_options(&mut self, opts: &str, dmx_reg: &RegisteredDemuxers) -> bool {
293 for opt in opts.split(',') {
294 let oval: Vec<_> = opt.split('=').collect();
296 self.demux_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
297 } else if oval.len() == 2 {
298 if oval[0] == "format" {
299 if dmx_reg.find_demuxer(oval[1]).is_some() {
300 self.input_fmt = Some(oval[1].to_string());
302 println!("unknown demuxer format '{}'", oval[1]);
305 self.demux_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
308 println!("unrecognized option '{}'", opt);
313 fn parse_muxer_options(&mut self, opts: &str, mux_reg: &RegisteredMuxers) -> bool {
314 for opt in opts.split(',') {
315 let oval: Vec<_> = opt.split('=').collect();
317 self.mux_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
318 } else if oval.len() == 2 {
319 if oval[0] == "format" {
320 if mux_reg.find_muxer(oval[1]).is_some() {
321 self.output_fmt = Some(oval[1].to_string());
323 println!("unknown muxer format '{}'", oval[1]);
326 self.mux_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
329 println!("unrecognized option '{}'", opt);
334 fn apply_decoder_options(&self, dec: &mut NADecoder, str_id: u32) {
335 if let Some(str_idx) = self.istr_opts.iter().position(|str| str.id == str_id) {
336 let dec_opts = dec.get_supported_options();
337 if dec_opts.is_empty() { return; }
338 let name = format!("input stream {}", str_id);
339 parse_and_apply_options!(dec, &self.istr_opts[str_idx].dec_opts, name);
342 fn register_output_stream(&mut self, cname: &str, istr: NAStreamRef, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
343 let out_id = out_sm.get_num_streams() as u32;
344 if let Some(str_idx) = self.istr_opts.iter().position(|str| str.id == (istr.get_num() as u32)) {
345 if self.istr_opts[str_idx].drop {
346 self.encoders.push(OutputMode::Drop);
351 if let Some(str_idx) = self.ostr_opts.iter().position(|str| str.id == out_id) {
352 let oopts = &mut self.ostr_opts[str_idx];
353 if cname == "copy" && istr.get_info().get_name() == cname {
354 self.encoders.push(OutputMode::Copy(out_id));
355 } else if cname == "any" || oopts.enc_name.as_str() == cname {
356 let enc_create = enc_reg.find_encoder(oopts.enc_name.as_str());
357 if enc_create.is_none() {
358 println!("encoder '{}' not found", oopts.enc_name.as_str());
361 let mut encoder = (enc_create.unwrap())();
362 if oopts.enc_params.format == NACodecTypeInfo::None {
363 oopts.enc_params.format = istr.get_info().get_properties();
365 if oopts.enc_params.tb_num == 0 {
366 oopts.enc_params.tb_num = istr.tb_num;
367 oopts.enc_params.tb_den = istr.tb_den;
369 let ret_eparams = encoder.negotiate_format(&oopts.enc_params);
370 if ret_eparams.is_err() {
371 println!("cannot negotiate encoding parameters");
374 let ret_eparams = ret_eparams.unwrap();
376 //todo check for params mismatch
377 let cvt = match (&oopts.enc_params.format, &ret_eparams.format) {
378 (NACodecTypeInfo::Video(svinfo), NACodecTypeInfo::Video(dvinfo)) => {
379 if svinfo == dvinfo {
382 let ofmt = ScaleInfo { fmt: dvinfo.format, width: dvinfo.width, height: dvinfo.height };
383 let ret = NAScale::new(ofmt, ofmt);
385 println!("cannot create scaler");
388 let scaler = ret.unwrap();
389 let ret = alloc_video_buffer(*dvinfo, 4);
391 println!("cannot create scaler buffer");
394 let cvt_buf = ret.unwrap();
395 OutputConvert::Video(scaler, cvt_buf)
398 (NACodecTypeInfo::Audio(sainfo), NACodecTypeInfo::Audio(dainfo)) => {
399 if sainfo == dainfo {
402 let dchmap = match dainfo.channels {
403 1 => NAChannelMap::from_ms_mapping(0x4),
404 2 => NAChannelMap::from_ms_mapping(0x3),
406 println!("can't generate default channel map for {} channels", dainfo.channels);
411 OutputConvert::Audio(*dainfo, dchmap)
414 _ => OutputConvert::None,
416 let ret = encoder.init(out_id, ret_eparams);
418 println!("error initialising encoder");
421 out_sm.add_stream_ref(ret.unwrap());
423 let name = format!("output stream {}", out_id);
424 parse_and_apply_options!(encoder, &oopts.enc_opts, name);
426 self.encoders.push(OutputMode::Encode(out_id, encoder, cvt));
428 println!("encoder {} is not supported by output (expected {})", istr.id, istr.get_info().get_name());
432 if cname == "any" || istr.get_info().get_name() == cname {
433 self.encoders.push(OutputMode::Copy(out_id));
435 println!("stream {} ({}) can't be handled", istr.id, istr.get_info().get_name());
436 // todo autoselect encoder?
442 fn map_single(&mut self, cname: &str, ctype: StreamType, src_sm: &StreamManager, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
443 let mut found_stream = false;
444 for istr in src_sm.iter() {
445 if istr.get_media_type() != ctype || found_stream {
446 self.encoders.push(OutputMode::Drop);
448 if !self.register_output_stream(cname, istr, out_sm, enc_reg) {
456 fn negotiate_stream_map(&mut self, src_sm: &StreamManager, mux_caps: MuxerCapabilities, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
458 MuxerCapabilities::SingleVideo(cname) => {
459 if self.no_video { return false; }
460 self.map_single(cname, StreamType::Video, src_sm, out_sm, enc_reg)
462 MuxerCapabilities::SingleAudio(cname) => {
463 if self.no_audio { return false; }
464 self.map_single(cname, StreamType::Audio, src_sm, out_sm, enc_reg)
466 MuxerCapabilities::SingleVideoAndAudio(vname, aname) => {
467 let mut found_vid = false;
468 let mut found_aud = false;
469 for istr in src_sm.iter() {
470 if istr.get_media_type() == StreamType::Video && !found_vid && !self.no_video {
471 if !self.register_output_stream(vname, istr, out_sm, enc_reg) {
475 } else if istr.get_media_type() == StreamType::Audio && !found_aud && !self.no_audio {
476 if !self.register_output_stream(aname, istr, out_sm, enc_reg) {
481 self.encoders.push(OutputMode::Drop);
484 found_vid | found_aud
486 MuxerCapabilities::OnlyVideo => {
487 if self.no_video { return false; }
489 let mut found_vid = false;
490 for istr in src_sm.iter() {
491 if istr.get_media_type() == StreamType::Video && !found_vid {
492 if !self.register_output_stream("any", istr, out_sm, enc_reg) {
497 self.encoders.push(OutputMode::Drop);
502 MuxerCapabilities::OnlyAudio => {
503 if self.no_audio { return false; }
505 let mut found_aud = false;
506 for istr in src_sm.iter() {
507 if istr.get_media_type() == StreamType::Audio && !found_aud {
508 if !self.register_output_stream("any", istr, out_sm, enc_reg) {
513 self.encoders.push(OutputMode::Drop);
518 MuxerCapabilities::Universal => {
519 for istr in src_sm.iter() {
520 if (istr.get_media_type() == StreamType::Video && self.no_video) ||
521 (istr.get_media_type() == StreamType::Audio && self.no_audio) {
522 self.encoders.push(OutputMode::Drop);
525 if !self.register_output_stream("any", istr, out_sm, enc_reg) {
535 macro_rules! next_arg {
536 ($args: expr, $arg_idx: expr) => {
537 if $arg_idx + 1 >= $args.len() {
538 println!("codec name is required");
545 let args: Vec<_> = env::args().collect();
548 println!("usage: nihav-encoder [-noout] [-vn] [-an] input [lastpts]");
552 let mut dmx_reg = RegisteredDemuxers::new();
553 nihav_register_all_demuxers(&mut dmx_reg);
554 let mut dec_reg = RegisteredDecoders::new();
555 nihav_register_all_codecs(&mut dec_reg);
557 let mut mux_reg = RegisteredMuxers::new();
558 nihav_register_all_muxers(&mut mux_reg);
559 let mut enc_reg = RegisteredEncoders::new();
560 nihav_register_all_encoders(&mut enc_reg);
562 let mut transcoder = Transcoder::new();
565 while arg_idx < args.len() {
566 match args[arg_idx].as_str() {
567 "--query-decoder-options" => {
568 next_arg!(args, arg_idx);
569 let cname = args[arg_idx].as_str();
570 if let Some(decfunc) = dec_reg.find_decoder(cname) {
571 let dec = (decfunc)();
572 let opts = dec.get_supported_options();
573 print_options(cname, opts);
575 println!("codec {} is not found", cname);
578 "--query-demuxer-options" => {
579 next_arg!(args, arg_idx);
580 let dname = args[arg_idx].as_str();
581 let mut mr = MemoryReader::new_read(&[]);
582 let mut br = ByteReader::new(&mut mr);
583 if let Some(dmx_creator) = dmx_reg.find_demuxer(dname) {
584 let dmx = dmx_creator.new_demuxer(&mut br);
585 let opts = dmx.get_supported_options();
586 print_options(dname, opts);
588 println!("demuxer {} is not found", dname);
591 "--query-encoder-options" => {
592 next_arg!(args, arg_idx);
593 let cname = args[arg_idx].as_str();
594 if let Some(encfunc) = enc_reg.find_encoder(cname) {
595 let enc = (encfunc)();
596 let opts = enc.get_supported_options();
597 print_options(cname, opts);
599 println!("codec {} is not found", cname);
602 "--query-muxer-options" => {
603 next_arg!(args, arg_idx);
604 let name = args[arg_idx].as_str();
606 let mut mw = MemoryWriter::new_write(&mut data);
607 let mut bw = ByteWriter::new(&mut mw);
608 if let Some(mux_creator) = mux_reg.find_muxer(name) {
609 let mux = mux_creator.new_muxer(&mut bw);
610 let opts = mux.get_supported_options();
611 print_options(name, opts);
613 println!("muxer {} is not found", name);
617 next_arg!(args, arg_idx);
618 transcoder.input_name = args[arg_idx].clone();
620 "--input-format" => {
621 next_arg!(args, arg_idx);
622 transcoder.input_fmt = Some(args[arg_idx].clone());
625 next_arg!(args, arg_idx);
626 transcoder.output_name = args[arg_idx].clone();
628 "--output-format" => {
629 next_arg!(args, arg_idx);
630 transcoder.output_fmt = Some(args[arg_idx].clone());
632 "--demuxer-options" => {
633 next_arg!(args, arg_idx);
634 if !transcoder.parse_demuxer_options(&args[arg_idx], &dmx_reg) {
635 println!("invalid demuxer option syntax");
640 transcoder.no_video = true;
643 transcoder.no_audio = true;
645 "--muxer-options" => {
646 next_arg!(args, arg_idx);
647 if !transcoder.parse_muxer_options(&args[arg_idx], &mux_reg) {
648 println!("invalid muxer option syntax");
653 if args[arg_idx].starts_with("--istream") {
654 let opt0 = &args[arg_idx];
655 next_arg!(args, arg_idx);
656 if !transcoder.parse_istream_options(opt0, &args[arg_idx]) {
657 println!("invalid input stream option syntax");
660 } else if args[arg_idx].starts_with("--ostream") {
661 let opt0 = &args[arg_idx];
662 next_arg!(args, arg_idx);
663 if !transcoder.parse_ostream_options(opt0, &args[arg_idx], &enc_reg) {
664 println!("invalid output stream option syntax");
667 } else if args[arg_idx].starts_with("--") {
668 println!("unknown option");
670 println!("unrecognized argument");
677 if transcoder.input_name.len() == 0 {
678 println!("no input name provided");
681 if transcoder.output_name.len() == 0 {
682 println!("no output name provided");
686 let res = File::open(transcoder.input_name.as_str());
688 println!("error opening input");
691 let mut file = res.unwrap();
692 let mut fr = FileReader::new_read(&mut file);
693 let mut br = ByteReader::new(&mut fr);
695 let dmx_name = if let Some(ref str) = transcoder.input_fmt {
698 if let Some((dmx_name, score)) = detect::detect_format(transcoder.input_name.as_str(), &mut br) {
699 println!("detected {} with score {:?}", dmx_name, score);
702 println!("cannot detect input format");
706 let ret = dmx_reg.find_demuxer(dmx_name);
708 println!("cannot find demuxer for '{}'", dmx_name);
711 let dmx_fact = ret.unwrap();
712 br.seek(SeekFrom::Start(0)).unwrap();
713 let mut dmx = create_demuxer(dmx_fact, &mut br).unwrap();
714 parse_and_apply_options!(dmx, &transcoder.demux_opts, "input");
715 for i in 0..dmx.get_num_streams() {
716 let s = dmx.get_stream(i).unwrap();
717 let info = s.get_info();
718 let decfunc = dec_reg.find_decoder(info.get_name());
719 println!("stream {} - {} {}", i, s, info.get_name());
720 let str_id = s.get_num() as u32;
721 if let Some(create_dec) = decfunc {
722 let mut dec = (create_dec)();
723 let mut dsupp = Box::new(NADecoderSupport::new());
724 let ret = dec.init(&mut dsupp, info.clone());
726 println!("Error initialising decoder '{}' for stream {}", info.get_name(), str_id);
729 transcoder.apply_decoder_options(dec.as_mut(), str_id);
730 transcoder.decoders.push(Some((dsupp, dec)));
732 println!("No decoder for stream {} ({}) is found", str_id, info.get_name());
733 transcoder.decoders.push(None);
737 let output_fmt = if let Some(ref str) = transcoder.output_fmt {
740 if let Some(str) = detect::detect_format_by_name(transcoder.output_name.as_str()) {
743 println!("Cannot guess muxer for output");
747 let ret = mux_reg.find_muxer(output_fmt);
748 let ofmt = output_fmt.to_string();
751 println!("cannot find muxer '{}'", output_fmt);
753 let mux_creator = ret.unwrap();
755 let mux_caps = mux_creator.get_capabilities();
756 let mut out_sm = StreamManager::new();
757 if !transcoder.negotiate_stream_map(dmx.get_stream_manager(), mux_caps, &mut out_sm, &enc_reg) {
758 println!("cannot determine stream map");
762 let ret = File::create(transcoder.output_name.as_str());
764 println!("cannot open output file");
767 let mut fw = FileWriter::new_write(ret.unwrap());
768 let mut bw = ByteWriter::new(&mut fw);
769 let ret = create_muxer(mux_creator, out_sm, &mut bw);
770 if let Err(err) = ret {
771 println!("cannot create muxer instance {:?}", err);
774 let mut mux = ret.unwrap();
775 parse_and_apply_options!(mux, &transcoder.mux_opts, "output");
777 println!("Output {} muxer {}", transcoder.output_name, ofmt);
778 for ostr in mux.get_streams() {
779 println!(" #{}: {} {}", ostr.get_num(), ostr, ostr.get_info().get_name());
783 let pktres = dmx.get_frame();
784 if let Err(DemuxerError::EOF) = pktres { break; }
786 println!("demuxing error");
789 let mut pkt = pktres.unwrap();
790 let src_id = pkt.get_stream().get_num();
791 match transcoder.encoders[src_id] {
792 OutputMode::Drop => {},
793 OutputMode::Copy(dst_id) => {
794 let dstr = mux.get_stream(dst_id as usize).unwrap();
795 pkt.reassign(dstr, pkt.get_time_information());
796 if mux.mux_frame(pkt).is_err() {
797 println!("error muxing packet");
801 OutputMode::Encode(dst_id, ref mut encoder, ref mut cvt) => {
802 if let Some((ref mut dsupp, ref mut decoder)) = transcoder.decoders[src_id] {
803 let ret = decoder.decode(dsupp, &pkt);
805 println!("error decoding stream {}", src_id);
808 let frm = ret.unwrap();
809 let buf = frm.get_buffer();
810 let cbuf = match cvt {
811 OutputConvert::None => buf,
812 OutputConvert::Video(ref mut scaler, ref mut dbuf) => {
813 let cur_ifmt = get_scale_fmt_from_pic(&buf);
814 let last_ifmt = scaler.get_in_fmt();
815 if cur_ifmt != last_ifmt {
816 let ofmt = scaler.get_out_fmt();
817 let ret = NAScale::new(cur_ifmt, ofmt);
819 println!("error re-initialising scaler for {} -> {}", cur_ifmt, ofmt);
822 *scaler = ret.unwrap();
824 let ret = scaler.convert(&buf, dbuf);
826 println!("error converting frame for encoding");
831 OutputConvert::Audio(ref dinfo, ref dchmap) => {
832 let ret = convert_audio_frame(&buf, dinfo, dchmap);
834 println!("error converting audio for stream {}", dst_id);
840 let cfrm = NAFrame::new(frm.get_time_information(), frm.frame_type, frm.key, frm.get_info(), cbuf);
841 encoder.encode(&cfrm).unwrap();
842 while let Ok(Some(pkt)) = encoder.get_packet() {
843 mux.mux_frame(pkt).unwrap();
846 println!("no decoder for stream {}", src_id);
852 'flush_loop: for enc in transcoder.encoders.iter_mut() {
854 OutputMode::Encode(str_id, ref mut encoder, _) => {
855 let ret = encoder.flush();
857 println!("error flushing encoder for stream {}", str_id);
860 while let Ok(Some(pkt)) = encoder.get_packet() {
861 if mux.mux_frame(pkt).is_err() {
862 println!("error muxing packet");
874 println!("error at finalising muxing");