--- /dev/null
+extern crate nihav_core;
+extern crate nihav_codec_support;
+extern crate nihav_registry;
+extern crate nihav_allstuff;
+
+use std::fs::File;
+use nihav_core::io::byteio::{FileReader, ByteReader};
+use nihav_core::frame::*;
+use nihav_core::options::*;
+use nihav_core::codecs::*;
+use nihav_core::demuxers::*;
+use nihav_core::muxers::*;
+use nihav_core::scale::*;
+use nihav_core::soundcvt::*;
+use nihav_registry::detect;
+use nihav_allstuff::*;
+use std::env;
+
+fn print_options(name: &str, options: &[NAOptionDefinition]) {
+ if options.is_empty() {
+ println!("No custom options.");
+ } else {
+ println!("Options for '{}'", name);
+ for opt in options.iter() {
+ println!(" {}", opt);
+ }
+ }
+}
+
+struct OptionArgs {
+ name: String,
+ value: Option<String>,
+}
+
+struct InputStreamOptions {
+ id: u32,
+ drop: bool,
+ dec_opts: Vec<OptionArgs>,
+}
+
+struct OutputStreamOptions {
+ id: u32,
+ enc_params: EncodeParameters,
+ enc_name: String,
+ enc_opts: Vec<OptionArgs>,
+}
+
+enum OutputConvert {
+ Video(NAScale, NABufferType),
+ Audio(NAAudioInfo, NAChannelMap),
+ None,
+}
+
+enum OutputMode {
+ Drop,
+ Copy(u32),
+ Encode(u32, Box<dyn NAEncoder>, OutputConvert),
+}
+
+#[derive(Default)]
+struct Transcoder {
+ input_name: String,
+ input_fmt: Option<String>,
+ output_name: String,
+ output_fmt: Option<String>,
+ demux_opts: Vec<OptionArgs>,
+ mux_opts: Vec<OptionArgs>,
+ istr_opts: Vec<InputStreamOptions>,
+ ostr_opts: Vec<OutputStreamOptions>,
+ decoders: Vec<Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)>>,
+ encoders: Vec<OutputMode>,
+ no_video: bool,
+ no_audio: bool,
+}
+
+macro_rules! parse_and_apply_options {
+ ($obj: expr, $in_opts: expr, $name: expr) => {
+ let mut opts = Vec::with_capacity($in_opts.len());
+ let opt_def = $obj.get_supported_options();
+ for opt in $in_opts.iter() {
+ let mut found = false;
+ for opt_def in opt_def.iter() {
+ if opt.name == opt_def.name {
+ let arg = if let Some(ref str) = opt.value { Some(str) } else { None };
+ let ret = opt_def.parse(&opt.name, arg);
+ if ret.is_err() {
+ println!("invalid option {} for {}", opt.name, $name);
+ } else {
+ let (val, _) = ret.unwrap();
+ opts.push(val);
+ }
+ found = true;
+ }
+ }
+ if !found {
+ println!(" ignoring option '{}' for {}", opt.name, $name);
+ }
+ }
+ $obj.set_options(opts.as_slice());
+ }
+}
+
+impl Transcoder {
+ fn new() -> Self { Self::default() }
+ fn parse_istream_options(&mut self, opt0: &str, opt1: &str) -> bool {
+ let (_, strno) = opt0.split_at(9);
+ let ret = strno.parse::<u32>();
+ if ret.is_err() { return false; }
+ let streamno = ret.unwrap();
+
+ let sidx = if let Some(idx) = self.istr_opts.iter().position(|str| str.id == streamno) {
+ idx
+ } else {
+ self.istr_opts.push(InputStreamOptions {id: streamno, drop: false, dec_opts: Vec::new() });
+ self.istr_opts.len() - 1
+ };
+ let istr = &mut self.istr_opts[sidx];
+
+ for opt in opt1.split(',') {
+ let oval: Vec<_> = opt.split('=').collect();
+ if oval.len() == 1 {
+ match oval[0] {
+ "drop" => { istr.drop = true; },
+ _ => {
+ istr.dec_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
+ },
+ };
+ } else if oval.len() == 2 {
+ istr.dec_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
+ } else {
+ println!("unrecognized option '{}'", opt);
+ }
+ }
+ true
+ }
+ fn parse_ostream_options(&mut self, opt0: &str, opt1: &str, enc_reg: &RegisteredEncoders) -> bool {
+ let (_, strno) = opt0.split_at(9);
+ let ret = strno.parse::<u32>();
+ if ret.is_err() { return false; }
+ let streamno = ret.unwrap();
+
+ let sidx = if let Some(idx) = self.ostr_opts.iter().position(|str| str.id == streamno) {
+ idx
+ } else {
+ self.ostr_opts.push(OutputStreamOptions {id: streamno, enc_name: String::new(), enc_params: EncodeParameters::default(), enc_opts: Vec::new() });
+ self.ostr_opts.len() - 1
+ };
+ let ostr = &mut self.ostr_opts[sidx];
+
+ for opt in opt1.split(',') {
+ let oval: Vec<_> = opt.split('=').collect();
+ if oval.len() == 1 {
+ match oval[0] {
+ "flip" => {
+ if ostr.enc_params.format == NACodecTypeInfo::None {
+ ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
+ }
+ if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
+ vinfo.flipped = true;
+ } else {
+ println!("video option for audio stream");
+ }
+ },
+ "noflip" => {
+ if ostr.enc_params.format == NACodecTypeInfo::None {
+ ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
+ }
+ if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
+ vinfo.flipped = false;
+ } else {
+ println!("video option for audio stream");
+ }
+ },
+ _ => {
+ ostr.enc_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
+ },
+ };
+ } else if oval.len() == 2 {
+//todo parse encoder options, store, init later
+ match oval[0] {
+ "encoder" => {
+ if enc_reg.find_encoder(oval[1]).is_some() {
+ ostr.enc_name = oval[1].to_string();
+ } else {
+ println!("unknown encoder '{}'", oval[1]);
+ }
+ },
+ "width" => {
+ if ostr.enc_params.format == NACodecTypeInfo::None {
+ ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
+ }
+ if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
+ let ret = oval[1].parse::<usize>();
+ if let Ok(val) = ret {
+ vinfo.width = val;
+ } else {
+ println!("invalid width");
+ }
+ } else {
+ println!("video option for audio stream");
+ }
+ },
+ "height" => {
+ if ostr.enc_params.format == NACodecTypeInfo::None {
+ ostr.enc_params.format = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, YUV420_FORMAT));
+ }
+ if let NACodecTypeInfo::Video(ref mut vinfo) = ostr.enc_params.format {
+ let ret = oval[1].parse::<usize>();
+ if let Ok(val) = ret {
+ vinfo.height = val;
+ } else {
+ println!("invalid height");
+ }
+ } else {
+ println!("video option for audio stream");
+ }
+ },
+//todo formaton
+ "srate" => {
+ if ostr.enc_params.format == NACodecTypeInfo::None {
+ ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
+ }
+ if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
+ let ret = oval[1].parse::<u32>();
+ if let Ok(val) = ret {
+ ainfo.sample_rate = val;
+ } else {
+ println!("invalid sampling rate");
+ }
+ } else {
+ println!("audio option for video stream");
+ }
+ },
+ "channels" => {
+ if ostr.enc_params.format == NACodecTypeInfo::None {
+ ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
+ }
+ if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
+ let ret = oval[1].parse::<u8>();
+ if let Ok(val) = ret {
+ ainfo.channels = val;
+ } else {
+ println!("invalid number of channels");
+ }
+ } else {
+ println!("audio option for video stream");
+ }
+ },
+ "block_len" => {
+ if ostr.enc_params.format == NACodecTypeInfo::None {
+ ostr.enc_params.format = NACodecTypeInfo::Audio(NAAudioInfo::new(0, 0, SND_S16_FORMAT, 0));
+ }
+ if let NACodecTypeInfo::Audio(ref mut ainfo) = ostr.enc_params.format {
+ let ret = oval[1].parse::<usize>();
+ if let Ok(val) = ret {
+ ainfo.block_len = val;
+ } else {
+ println!("invalid block_length");
+ }
+ } else {
+ println!("audio option for video stream");
+ }
+ },
+//todo soniton, channel map
+ "bitrate" => {
+ let ret = oval[1].parse::<u32>();
+ if let Ok(val) = ret {
+ ostr.enc_params.bitrate = val;
+ } else {
+ println!("invalid bitrate value");
+ }
+ },
+ "quality" => {
+ let ret = oval[1].parse::<u8>();
+ if let Ok(val) = ret {
+ ostr.enc_params.quality = val;
+ } else {
+ println!("invalid quality value");
+ }
+ },
+ _ => {
+ ostr.enc_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
+ },
+ }
+ } else {
+ println!("unrecognized option '{}'", opt);
+ }
+ }
+ true
+ }
+ fn parse_demuxer_options(&mut self, opts: &str, dmx_reg: &RegisteredDemuxers) -> bool {
+ for opt in opts.split(',') {
+ let oval: Vec<_> = opt.split('=').collect();
+ if oval.len() == 1 {
+ self.demux_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
+ } else if oval.len() == 2 {
+ if oval[0] == "format" {
+ if dmx_reg.find_demuxer(oval[1]).is_some() {
+ self.input_fmt = Some(oval[1].to_string());
+ } else {
+ println!("unknown demuxer format '{}'", oval[1]);
+ }
+ } else {
+ self.demux_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
+ }
+ } else {
+ println!("unrecognized option '{}'", opt);
+ }
+ }
+ true
+ }
+ fn parse_muxer_options(&mut self, opts: &str, mux_reg: &RegisteredMuxers) -> bool {
+ for opt in opts.split(',') {
+ let oval: Vec<_> = opt.split('=').collect();
+ if oval.len() == 1 {
+ self.mux_opts.push(OptionArgs{ name: oval[0].to_string(), value: None });
+ } else if oval.len() == 2 {
+ if oval[0] == "format" {
+ if mux_reg.find_muxer(oval[1]).is_some() {
+ self.output_fmt = Some(oval[1].to_string());
+ } else {
+ println!("unknown muxer format '{}'", oval[1]);
+ }
+ } else {
+ self.mux_opts.push(OptionArgs{ name: oval[0].to_string(), value: Some(oval[1].to_string()) });
+ }
+ } else {
+ println!("unrecognized option '{}'", opt);
+ }
+ }
+ true
+ }
+ fn apply_decoder_options(&self, dec: &mut NADecoder, str_id: u32) {
+ if let Some(str_idx) = self.istr_opts.iter().position(|str| str.id == str_id) {
+ let dec_opts = dec.get_supported_options();
+ if dec_opts.is_empty() { return; }
+ let name = format!("input stream {}", str_id);
+ parse_and_apply_options!(dec, &self.istr_opts[str_idx].dec_opts, name);
+ }
+ }
+ fn register_output_stream(&mut self, cname: &str, istr: NAStreamRef, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
+ let out_id = out_sm.get_num_streams() as u32;
+ if let Some(str_idx) = self.istr_opts.iter().position(|str| str.id == (istr.get_num() as u32)) {
+ if self.istr_opts[str_idx].drop {
+ self.encoders.push(OutputMode::Drop);
+ return true;
+ }
+ }
+
+ if let Some(str_idx) = self.ostr_opts.iter().position(|str| str.id == out_id) {
+ let oopts = &mut self.ostr_opts[str_idx];
+ if cname == "copy" && istr.get_info().get_name() == cname {
+ self.encoders.push(OutputMode::Copy(out_id));
+ } else if cname == "any" || oopts.enc_name.as_str() == cname {
+ let enc_create = enc_reg.find_encoder(oopts.enc_name.as_str());
+ if enc_create.is_none() {
+ println!("encoder '{}' not found", oopts.enc_name.as_str());
+ return false;
+ }
+ let mut encoder = (enc_create.unwrap())();
+ if oopts.enc_params.format == NACodecTypeInfo::None {
+ oopts.enc_params.format = istr.get_info().get_properties();
+ }
+ if oopts.enc_params.tb_num == 0 {
+ oopts.enc_params.tb_num = istr.tb_num;
+ oopts.enc_params.tb_den = istr.tb_den;
+ }
+ let ret_eparams = encoder.negotiate_format(&oopts.enc_params);
+ if ret_eparams.is_err() {
+ println!("cannot negotiate encoding parameters");
+ return false;
+ }
+ let ret_eparams = ret_eparams.unwrap();
+
+//todo check for params mismatch
+ let cvt = match (&oopts.enc_params.format, &ret_eparams.format) {
+ (NACodecTypeInfo::Video(svinfo), NACodecTypeInfo::Video(dvinfo)) => {
+ if svinfo == dvinfo {
+ OutputConvert::None
+ } else {
+ let ofmt = ScaleInfo { fmt: dvinfo.format, width: dvinfo.width, height: dvinfo.height };
+ let ret = NAScale::new(ofmt, ofmt);
+ if ret.is_err() {
+ println!("cannot create scaler");
+ return false;
+ }
+ let scaler = ret.unwrap();
+ let ret = alloc_video_buffer(*dvinfo, 4);
+ if ret.is_err() {
+ println!("cannot create scaler buffer");
+ return false;
+ }
+ let cvt_buf = ret.unwrap();
+ OutputConvert::Video(scaler, cvt_buf)
+ }
+ },
+ (NACodecTypeInfo::Audio(sainfo), NACodecTypeInfo::Audio(dainfo)) => {
+ if sainfo == dainfo {
+ OutputConvert::None
+ } else {
+ let dchmap = match dainfo.channels {
+ 1 => NAChannelMap::from_ms_mapping(0x4),
+ 2 => NAChannelMap::from_ms_mapping(0x3),
+ _ => {
+println!("can't generate default channel map for {} channels", dainfo.channels);
+ return false;
+ },
+ };
+//todo channelmap
+ OutputConvert::Audio(*dainfo, dchmap)
+ }
+ },
+ _ => OutputConvert::None,
+ };
+ let ret = encoder.init(out_id, ret_eparams);
+ if ret.is_err() {
+ println!("error initialising encoder");
+ return false;
+ }
+ out_sm.add_stream_ref(ret.unwrap());
+
+ let name = format!("output stream {}", out_id);
+ parse_and_apply_options!(encoder, &oopts.enc_opts, name);
+
+ self.encoders.push(OutputMode::Encode(out_id, encoder, cvt));
+ } else {
+println!("encoder {} is not supported by output (expected {})", istr.id, istr.get_info().get_name());
+ return false;
+ }
+ } else {
+ if cname == "any" || istr.get_info().get_name() == cname {
+ self.encoders.push(OutputMode::Copy(out_id));
+ } else {
+println!("stream {} ({}) can't be handled", istr.id, istr.get_info().get_name());
+// todo autoselect encoder?
+ return false;
+ }
+ }
+ true
+ }
+ fn map_single(&mut self, cname: &str, ctype: StreamType, src_sm: &StreamManager, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
+ let mut found_stream = false;
+ for istr in src_sm.iter() {
+ if istr.get_media_type() != ctype || found_stream {
+ self.encoders.push(OutputMode::Drop);
+ } else {
+ if !self.register_output_stream(cname, istr, out_sm, enc_reg) {
+ return false;
+ }
+ found_stream = true;
+ }
+ }
+ found_stream
+ }
+ fn negotiate_stream_map(&mut self, src_sm: &StreamManager, mux_caps: MuxerCapabilities, out_sm: &mut StreamManager, enc_reg: &RegisteredEncoders) -> bool {
+ match mux_caps {
+ MuxerCapabilities::SingleVideo(cname) => {
+ if self.no_video { return false; }
+ self.map_single(cname, StreamType::Video, src_sm, out_sm, enc_reg)
+ },
+ MuxerCapabilities::SingleAudio(cname) => {
+ if self.no_audio { return false; }
+ self.map_single(cname, StreamType::Audio, src_sm, out_sm, enc_reg)
+ },
+ MuxerCapabilities::SingleVideoAndAudio(vname, aname) => {
+ let mut found_vid = false;
+ let mut found_aud = false;
+ for istr in src_sm.iter() {
+ if istr.get_media_type() == StreamType::Video && !found_vid && !self.no_video {
+ if !self.register_output_stream(vname, istr, out_sm, enc_reg) {
+ return false;
+ }
+ found_vid = true;
+ } else if istr.get_media_type() == StreamType::Audio && !found_aud && !self.no_audio {
+ if !self.register_output_stream(aname, istr, out_sm, enc_reg) {
+ return false;
+ }
+ found_aud = true;
+ } else {
+ self.encoders.push(OutputMode::Drop);
+ }
+ }
+ found_vid | found_aud
+ },
+ MuxerCapabilities::OnlyVideo => {
+ if self.no_video { return false; }
+
+ let mut found_vid = false;
+ for istr in src_sm.iter() {
+ if istr.get_media_type() == StreamType::Video && !found_vid {
+ if !self.register_output_stream("any", istr, out_sm, enc_reg) {
+ return false;
+ }
+ found_vid = true;
+ } else {
+ self.encoders.push(OutputMode::Drop);
+ }
+ }
+ found_vid
+ },
+ MuxerCapabilities::OnlyAudio => {
+ if self.no_audio { return false; }
+
+ let mut found_aud = false;
+ for istr in src_sm.iter() {
+ if istr.get_media_type() == StreamType::Audio && !found_aud {
+ if !self.register_output_stream("any", istr, out_sm, enc_reg) {
+ return false;
+ }
+ found_aud = true;
+ } else {
+ self.encoders.push(OutputMode::Drop);
+ }
+ }
+ found_aud
+ },
+ MuxerCapabilities::Universal => {
+ for istr in src_sm.iter() {
+ if (istr.get_media_type() == StreamType::Video && self.no_video) ||
+ (istr.get_media_type() == StreamType::Audio && self.no_audio) {
+ self.encoders.push(OutputMode::Drop);
+ continue;
+ }
+ if !self.register_output_stream("any", istr, out_sm, enc_reg) {
+ return false;
+ }
+ }
+ true
+ },
+ }
+ }
+}
+
+macro_rules! next_arg {
+ ($args: expr, $arg_idx: expr) => {
+ if $arg_idx + 1 >= $args.len() {
+ println!("codec name is required");
+ }
+ $arg_idx += 1;
+ }
+}
+
+fn main() {
+ let args: Vec<_> = env::args().collect();
+
+ if args.len() == 1 {
+ println!("usage: nihav-encoder [-noout] [-vn] [-an] input [lastpts]");
+ return;
+ }
+
+ let mut dmx_reg = RegisteredDemuxers::new();
+ nihav_register_all_demuxers(&mut dmx_reg);
+ let mut dec_reg = RegisteredDecoders::new();
+ nihav_register_all_codecs(&mut dec_reg);
+
+ let mut mux_reg = RegisteredMuxers::new();
+ nihav_register_all_muxers(&mut mux_reg);
+ let mut enc_reg = RegisteredEncoders::new();
+ nihav_register_all_encoders(&mut enc_reg);
+
+ let mut transcoder = Transcoder::new();
+
+ let mut arg_idx = 1;
+ while arg_idx < args.len() {
+ match args[arg_idx].as_str() {
+ "--query-decoder-options" => {
+ next_arg!(args, arg_idx);
+ let cname = args[arg_idx].as_str();
+ if let Some(decfunc) = dec_reg.find_decoder(cname) {
+ let dec = (decfunc)();
+ let opts = dec.get_supported_options();
+ print_options(cname, opts);
+ } else {
+ println!("codec {} is not found", cname);
+ }
+ },
+ "--query-demuxer-options" => {
+ next_arg!(args, arg_idx);
+ let dname = args[arg_idx].as_str();
+ let mut mr = MemoryReader::new_read(&[]);
+ let mut br = ByteReader::new(&mut mr);
+ if let Some(dmx_creator) = dmx_reg.find_demuxer(dname) {
+ let dmx = dmx_creator.new_demuxer(&mut br);
+ let opts = dmx.get_supported_options();
+ print_options(dname, opts);
+ } else {
+ println!("demuxer {} is not found", dname);
+ }
+ },
+ "--query-encoder-options" => {
+ next_arg!(args, arg_idx);
+ let cname = args[arg_idx].as_str();
+ if let Some(encfunc) = enc_reg.find_encoder(cname) {
+ let enc = (encfunc)();
+ let opts = enc.get_supported_options();
+ print_options(cname, opts);
+ } else {
+ println!("codec {} is not found", cname);
+ }
+ },
+ "--query-muxer-options" => {
+ next_arg!(args, arg_idx);
+ let name = args[arg_idx].as_str();
+ let mut data = [];
+ let mut mw = MemoryWriter::new_write(&mut data);
+ let mut bw = ByteWriter::new(&mut mw);
+ if let Some(mux_creator) = mux_reg.find_muxer(name) {
+ let mux = mux_creator.new_muxer(&mut bw);
+ let opts = mux.get_supported_options();
+ print_options(name, opts);
+ } else {
+ println!("muxer {} is not found", name);
+ }
+ },
+ "--input" => {
+ next_arg!(args, arg_idx);
+ transcoder.input_name = args[arg_idx].clone();
+ },
+ "--input-format" => {
+ next_arg!(args, arg_idx);
+ transcoder.input_fmt = Some(args[arg_idx].clone());
+ },
+ "--output" => {
+ next_arg!(args, arg_idx);
+ transcoder.output_name = args[arg_idx].clone();
+ },
+ "--output-format" => {
+ next_arg!(args, arg_idx);
+ transcoder.output_fmt = Some(args[arg_idx].clone());
+ },
+ "--demuxer-options" => {
+ next_arg!(args, arg_idx);
+ if !transcoder.parse_demuxer_options(&args[arg_idx], &dmx_reg) {
+ println!("invalid demuxer option syntax");
+ return;
+ }
+ },
+ "--no-video" => {
+ transcoder.no_video = true;
+ },
+ "--no-audio" => {
+ transcoder.no_audio = true;
+ },
+ "--muxer-options" => {
+ next_arg!(args, arg_idx);
+ if !transcoder.parse_muxer_options(&args[arg_idx], &mux_reg) {
+ println!("invalid muxer option syntax");
+ return;
+ }
+ },
+ _ => {
+ if args[arg_idx].starts_with("--istream") {
+ let opt0 = &args[arg_idx];
+ next_arg!(args, arg_idx);
+ if !transcoder.parse_istream_options(opt0, &args[arg_idx]) {
+ println!("invalid input stream option syntax");
+ return;
+ }
+ } else if args[arg_idx].starts_with("--ostream") {
+ let opt0 = &args[arg_idx];
+ next_arg!(args, arg_idx);
+ if !transcoder.parse_ostream_options(opt0, &args[arg_idx], &enc_reg) {
+ println!("invalid output stream option syntax");
+ return;
+ }
+ } else if args[arg_idx].starts_with("--") {
+ println!("unknown option");
+ } else {
+ println!("unrecognized argument");
+ }
+ },
+ };
+ arg_idx += 1;
+ }
+
+ if transcoder.input_name.len() == 0 {
+ println!("no input name provided");
+ return;
+ }
+ if transcoder.output_name.len() == 0 {
+ println!("no output name provided");
+ return;
+ }
+
+ let res = File::open(transcoder.input_name.as_str());
+ if res.is_err() {
+ println!("error opening input");
+ return;
+ }
+ let mut file = res.unwrap();
+ let mut fr = FileReader::new_read(&mut file);
+ let mut br = ByteReader::new(&mut fr);
+
+ let dmx_name = if let Some(ref str) = transcoder.input_fmt {
+ str.as_str()
+ } else {
+ if let Some((dmx_name, score)) = detect::detect_format(transcoder.input_name.as_str(), &mut br) {
+ println!("detected {} with score {:?}", dmx_name, score);
+ dmx_name
+ } else {
+ println!("cannot detect input format");
+ return;
+ }
+ };
+ let ret = dmx_reg.find_demuxer(dmx_name);
+ if ret.is_none() {
+ println!("cannot find demuxer for '{}'", dmx_name);
+ return;
+ }
+ let dmx_fact = ret.unwrap();
+ br.seek(SeekFrom::Start(0)).unwrap();
+ let mut dmx = create_demuxer(dmx_fact, &mut br).unwrap();
+ parse_and_apply_options!(dmx, &transcoder.demux_opts, "input");
+ for i in 0..dmx.get_num_streams() {
+ let s = dmx.get_stream(i).unwrap();
+ let info = s.get_info();
+ let decfunc = dec_reg.find_decoder(info.get_name());
+println!("stream {} - {} {}", i, s, info.get_name());
+ let str_id = s.get_num() as u32;
+ if let Some(create_dec) = decfunc {
+ let mut dec = (create_dec)();
+ let mut dsupp = Box::new(NADecoderSupport::new());
+ let ret = dec.init(&mut dsupp, info.clone());
+ if ret.is_err() {
+ println!("Error initialising decoder '{}' for stream {}", info.get_name(), str_id);
+ return;
+ }
+ transcoder.apply_decoder_options(dec.as_mut(), str_id);
+ transcoder.decoders.push(Some((dsupp, dec)));
+ } else {
+ println!("No decoder for stream {} ({}) is found", str_id, info.get_name());
+ transcoder.decoders.push(None);
+ }
+ }
+
+ let output_fmt = if let Some(ref str) = transcoder.output_fmt {
+ str
+ } else {
+ if let Some(str) = detect::detect_format_by_name(transcoder.output_name.as_str()) {
+ str
+ } else {
+ println!("Cannot guess muxer for output");
+ return;
+ }
+ };
+ let ret = mux_reg.find_muxer(output_fmt);
+ let ofmt = output_fmt.to_string();
+
+ if ret.is_none() {
+ println!("cannot find muxer '{}'", output_fmt);
+ }
+ let mux_creator = ret.unwrap();
+
+ let mux_caps = mux_creator.get_capabilities();
+ let mut out_sm = StreamManager::new();
+ if !transcoder.negotiate_stream_map(dmx.get_stream_manager(), mux_caps, &mut out_sm, &enc_reg) {
+ println!("cannot determine stream map");
+ return;
+ }
+
+ let ret = File::create(transcoder.output_name.as_str());
+ if ret.is_err() {
+ println!("cannot open output file");
+ return;
+ }
+ let mut fw = FileWriter::new_write(ret.unwrap());
+ let mut bw = ByteWriter::new(&mut fw);
+ let ret = create_muxer(mux_creator, out_sm, &mut bw);
+ if let Err(err) = ret {
+ println!("cannot create muxer instance {:?}", err);
+ return;
+ }
+ let mut mux = ret.unwrap();
+ parse_and_apply_options!(mux, &transcoder.mux_opts, "output");
+
+ println!("Output {} muxer {}", transcoder.output_name, ofmt);
+ for ostr in mux.get_streams() {
+ println!(" #{}: {} {}", ostr.get_num(), ostr, ostr.get_info().get_name());
+ }
+
+ loop {
+ let pktres = dmx.get_frame();
+ if let Err(DemuxerError::EOF) = pktres { break; }
+ if pktres.is_err() {
+ println!("demuxing error");
+ break;
+ }
+ let mut pkt = pktres.unwrap();
+ let src_id = pkt.get_stream().get_num();
+ match transcoder.encoders[src_id] {
+ OutputMode::Drop => {},
+ OutputMode::Copy(dst_id) => {
+ let dstr = mux.get_stream(dst_id as usize).unwrap();
+ pkt.reassign(dstr, pkt.get_time_information());
+ if mux.mux_frame(pkt).is_err() {
+ println!("error muxing packet");
+ break;
+ }
+ },
+ OutputMode::Encode(dst_id, ref mut encoder, ref mut cvt) => {
+ if let Some((ref mut dsupp, ref mut decoder)) = transcoder.decoders[src_id] {
+ let ret = decoder.decode(dsupp, &pkt);
+ if ret.is_err() {
+ println!("error decoding stream {}", src_id);
+ break;
+ }
+ let frm = ret.unwrap();
+ let buf = frm.get_buffer();
+ let cbuf = match cvt {
+ OutputConvert::None => buf,
+ OutputConvert::Video(ref mut scaler, ref mut dbuf) => {
+ let cur_ifmt = get_scale_fmt_from_pic(&buf);
+ let last_ifmt = scaler.get_in_fmt();
+ if cur_ifmt != last_ifmt {
+ let ofmt = scaler.get_out_fmt();
+ let ret = NAScale::new(cur_ifmt, ofmt);
+ if ret.is_err() {
+ println!("error re-initialising scaler for {} -> {}", cur_ifmt, ofmt);
+ break;
+ }
+ *scaler = ret.unwrap();
+ }
+ let ret = scaler.convert(&buf, dbuf);
+ if ret.is_err() {
+ println!("error converting frame for encoding");
+ break;
+ }
+ dbuf.clone()
+ },
+ OutputConvert::Audio(ref dinfo, ref dchmap) => {
+ let ret = convert_audio_frame(&buf, dinfo, dchmap);
+ if ret.is_err() {
+ println!("error converting audio for stream {}", dst_id);
+ break;
+ }
+ ret.unwrap()
+ },
+ };
+ let cfrm = NAFrame::new(frm.get_time_information(), frm.frame_type, frm.key, frm.get_info(), cbuf);
+ encoder.encode(&cfrm).unwrap();
+ while let Ok(Some(pkt)) = encoder.get_packet() {
+ mux.mux_frame(pkt).unwrap();
+ }
+ } else {
+ println!("no decoder for stream {}", src_id);
+ break;
+ }
+ },
+ };
+ }
+ 'flush_loop: for enc in transcoder.encoders.iter_mut() {
+ match enc {
+ OutputMode::Encode(str_id, ref mut encoder, _) => {
+ let ret = encoder.flush();
+ if ret.is_err() {
+ println!("error flushing encoder for stream {}", str_id);
+ break;
+ } else {
+ while let Ok(Some(pkt)) = encoder.get_packet() {
+ if mux.mux_frame(pkt).is_err() {
+ println!("error muxing packet");
+ break 'flush_loop;
+ }
+ }
+ }
+ },
+ _ => {},
+ };
+ }
+
+ let ret = mux.end();
+ if ret.is_err() {
+ println!("error at finalising muxing");
+ }
+}
projects / nihav-encoder.git / commitdiff