nihav-codec-support/src/test/dec_video.rs

   1 //! Routines for testing decoders.
   2 use std::fs::File;
   3 use nihav_core::frame::*;
   4 use nihav_core::codecs::*;
   5 use nihav_core::demuxers::*;
   6 //use nihav_core::io::byteio::*;
   7 //use nihav_core::scale::*;
   8 use super::wavwriter::WavWriter;
   9 use super::md5::MD5;
  10 use crate::imgwrite::write_pnm;
  11 pub use super::ExpectedTestResult;
  12
  13 const OUTPUT_PREFIX: &str = "assets/test_out/";
  14
  15 /*fn open_wav_out(pfx: &str, strno: usize) -> WavWriter {
  16     let name = format!("assets/{}out{:02}.wav", pfx, strno);
  17     let mut file = File::create(name).unwrap();
  18     let mut fw = FileWriter::new_write(&mut file);
  19     let mut wr = ByteWriter::new(&mut fw);
  20     WavWriter::new(&mut wr)
  21 }*/
  22
  23 /// Tests decoding of provided file and optionally outputs video frames as PNM (PPM for RGB video, PGM for YUV).
  24 ///
  25 /// This function expects the following arguments:
  26 /// * `demuxer` - container format name (used to find proper demuxer for it)
  27 /// * `name` - input file name
  28 /// * `limit` - optional PTS value after which decoding is stopped
  29 /// * `decode_video`/`decode_audio` - flags for enabling video/audio decoding
  30 /// * `video_pfx` - prefix for video frames written as pictures (if enabled then output picture names should look like `<crate_name>/assets/test_out/PFXout00_000000.ppm`
  31 /// * `dmx_reg` and `dec_reg` - registered demuxers and decoders that should contain demuxer and decoder(s) needed to decode the provided file.
  32 ///
  33 /// Since the function is intended for tests, it will panic instead of returning an error.
  34 pub fn test_file_decoding(demuxer: &str, name: &str, limit: Option<u64>,
  35                           decode_video: bool, decode_audio: bool,
  36                           video_pfx: Option<&str>,
  37                           dmx_reg: &RegisteredDemuxers, dec_reg: &RegisteredDecoders) {
  38     let dmx_f = dmx_reg.find_demuxer(demuxer).unwrap();
  39     let mut file = File::open(name).unwrap();
  40     let mut fr = FileReader::new_read(&mut file);
  41     let mut br = ByteReader::new(&mut fr);
  42     let mut dmx = create_demuxer(dmx_f, &mut br).unwrap();
  43
  44     let mut decs: Vec<Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)>> = Vec::new();
  45     for i in 0..dmx.get_num_streams() {
  46         let s = dmx.get_stream(i).unwrap();
  47         let info = s.get_info();
  48         let decfunc = dec_reg.find_decoder(info.get_name());
  49         if let Some(df) = decfunc {
  50             if (decode_video && info.is_video()) || (decode_audio && info.is_audio()) {
  51                 let mut dec = (df)();
  52                 let mut dsupp = Box::new(NADecoderSupport::new());
  53                 dec.init(&mut dsupp, info).unwrap();
  54                 decs.push(Some((dsupp, dec)));
  55             } else {
  56                 decs.push(None);
  57             }
  58         } else {
  59             decs.push(None);
  60         }
  61     }
  62
  63     loop {
  64         let pktres = dmx.get_frame();
  65         if let Err(e) = pktres {
  66             if e == DemuxerError::EOF { break; }
  67             panic!("error");
  68         }
  69         let pkt = pktres.unwrap();
  70         let streamno = pkt.get_stream().get_id() as usize;
  71         if let Some((ref mut dsupp, ref mut dec)) = decs[streamno] {
  72             if let (Some(lim), Some(ppts)) = (limit, pkt.get_pts()) {
  73                 if ppts > lim { break; }
  74             }
  75             let frm = dec.decode(dsupp, &pkt).unwrap();
  76             if pkt.get_stream().get_info().is_video() && video_pfx.is_some() && frm.get_frame_type() != FrameType::Skip {
  77                 let pts = if let Some(fpts) = frm.get_pts() { fpts } else { pkt.get_pts().unwrap() };
  78                 let pfx = OUTPUT_PREFIX.to_owned() + video_pfx.unwrap_or("") + "out";
  79                 write_pnm(pfx.as_str(), streamno, pts, frm).unwrap();
  80             }
  81         }
  82     }
  83 }
  84
  85 /// Tests audio decoder with the content in the provided file and optionally outputs decoded audio.
  86 ///
  87 /// The syntax is very similar to [`test_file_decoding`] except that it is intended for testing audio codecs.
  88 ///
  89 /// Since the function is intended for tests, it will panic instead of returning an error.
  90 ///
  91 /// [`test_file_decoding`]: ./fn.test_file_decoding.html
  92 pub fn test_decode_audio(demuxer: &str, name: &str, limit: Option<u64>, audio_pfx: Option<&str>,
  93                          dmx_reg: &RegisteredDemuxers, dec_reg: &RegisteredDecoders) {
  94     let dmx_f = dmx_reg.find_demuxer(demuxer).unwrap();
  95     let mut file = File::open(name).unwrap();
  96     let mut fr = FileReader::new_read(&mut file);
  97     let mut br = ByteReader::new(&mut fr);
  98     let mut dmx = create_demuxer(dmx_f, &mut br).unwrap();
  99
 100     let mut decs: Vec<Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)>> = Vec::new();
 101     for i in 0..dmx.get_num_streams() {
 102         let s = dmx.get_stream(i).unwrap();
 103         let info = s.get_info();
 104         let decfunc = dec_reg.find_decoder(info.get_name());
 105         if let Some(df) = decfunc {
 106             if info.is_audio() {
 107                 let mut dec = (df)();
 108                 let mut dsupp = Box::new(NADecoderSupport::new());
 109                 dec.init(&mut dsupp, info).unwrap();
 110                 decs.push(Some((dsupp, dec)));
 111             } else {
 112                 decs.push(None);
 113             }
 114         } else {
 115             decs.push(None);
 116         }
 117     }
 118
 119     if let Some(audio_pfx) = audio_pfx {
 120         let name = format!("{}/{}out.wav", OUTPUT_PREFIX, audio_pfx);
 121         let file = File::create(name).unwrap();
 122         let mut fw = FileWriter::new_write(file);
 123         let mut wr = ByteWriter::new(&mut fw);
 124         let mut wwr = WavWriter::new(&mut wr);
 125         let mut wrote_header = false;
 126
 127         loop {
 128             let pktres = dmx.get_frame();
 129             if let Err(e) = pktres {
 130                 if e == DemuxerError::EOF { break; }
 131                 panic!("error");
 132             }
 133             let pkt = pktres.unwrap();
 134             if limit.is_some() && pkt.get_pts().is_some() && pkt.get_pts().unwrap() > limit.unwrap() {
 135                 break;
 136             }
 137             let streamno = pkt.get_stream().get_id() as usize;
 138             if let Some((ref mut dsupp, ref mut dec)) = decs[streamno] {
 139                 let frm = dec.decode(dsupp, &pkt).unwrap();
 140                 if frm.get_info().is_audio() {
 141                     if !wrote_header {
 142                         wwr.write_header(frm.get_info().as_ref().get_properties().get_audio_info().unwrap()).unwrap();
 143                         wrote_header = true;
 144                     }
 145                     wwr.write_frame(frm.get_buffer()).unwrap();
 146                 }
 147             }
 148         }
 149     } else {
 150         loop {
 151             let pktres = dmx.get_frame();
 152             if let Err(e) = pktres {
 153                 if e == DemuxerError::EOF { break; }
 154                 panic!("error");
 155             }
 156             let pkt = pktres.unwrap();
 157             if limit.is_some() && pkt.get_pts().is_some() && pkt.get_pts().unwrap() > limit.unwrap() {
 158                 break;
 159             }
 160             let streamno = pkt.get_stream().get_id() as usize;
 161             if let Some((ref mut dsupp, ref mut dec)) = decs[streamno] {
 162                 let _ = dec.decode(dsupp, &pkt).unwrap();
 163             }
 164         }
 165     }
 166 }
 167
 168 fn frame_checksum(md5: &mut MD5, frm: NAFrameRef) {
 169     match frm.get_buffer() {
 170         NABufferType::Video(ref vb) => {
 171             md5.update_hash(vb.get_data());
 172         },
 173         NABufferType::Video16(ref vb) => {
 174             let mut samp = [0u8; 2];
 175             let data = vb.get_data();
 176             for el in data.iter() {
 177                 samp[0] = (*el >> 8) as u8;
 178                 samp[1] = (*el >> 0) as u8;
 179                 md5.update_hash(&samp);
 180             }
 181         },
 182         NABufferType::Video32(ref vb) => {
 183             let mut samp = [0u8; 4];
 184             let data = vb.get_data();
 185             for el in data.iter() {
 186                 samp[0] = (*el >> 24) as u8;
 187                 samp[1] = (*el >> 16) as u8;
 188                 samp[2] = (*el >>  8) as u8;
 189                 samp[3] = (*el >>  0) as u8;
 190                 md5.update_hash(&samp);
 191             }
 192         },
 193         NABufferType::VideoPacked(ref vb) => {
 194             md5.update_hash(vb.get_data());
 195         },
 196         NABufferType::AudioU8(ref ab) => {
 197             md5.update_hash(ab.get_data());
 198         },
 199         NABufferType::AudioI16(ref ab) => {
 200             let mut samp = [0u8; 2];
 201             let data = ab.get_data();
 202             for el in data.iter() {
 203                 samp[0] = (*el >> 8) as u8;
 204                 samp[1] = (*el >> 0) as u8;
 205                 md5.update_hash(&samp);
 206             }
 207         },
 208         NABufferType::AudioI32(ref ab) => {
 209             let mut samp = [0u8; 4];
 210             let data = ab.get_data();
 211             for el in data.iter() {
 212                 samp[0] = (*el >> 24) as u8;
 213                 samp[1] = (*el >> 16) as u8;
 214                 samp[2] = (*el >>  8) as u8;
 215                 samp[3] = (*el >>  0) as u8;
 216                 md5.update_hash(&samp);
 217             }
 218         },
 219         NABufferType::AudioF32(ref ab) => {
 220             let mut samp = [0u8; 4];
 221             let data = ab.get_data();
 222             for el in data.iter() {
 223                 let bits = el.to_bits();
 224                 samp[0] = (bits >> 24) as u8;
 225                 samp[1] = (bits >> 16) as u8;
 226                 samp[2] = (bits >>  8) as u8;
 227                 samp[3] = (bits >>  0) as u8;
 228                 md5.update_hash(&samp);
 229             }
 230         },
 231         NABufferType::AudioPacked(ref ab) => {
 232             md5.update_hash(ab.get_data());
 233         },
 234         NABufferType::Data(ref db) => {
 235             md5.update_hash(db.as_ref());
 236         },
 237         NABufferType::None => {},
 238     };
 239 }
 240
 241 /// Tests decoder for requested codec in provided file.
 242 ///
 243 /// This functions tries to decode a stream corresponding to `dec_name` codec in input file and validate the results against expected ones.
 244 ///
 245 /// Since the function is intended for tests, it will panic instead of returning an error.
 246 ///
 247 /// # Examples
 248 ///
 249 /// Test RealVideo 4 decoder in test stream:
 250 /// ```no_run
 251 /// use nihav_codec_support::test::ExpectedTestResult;
 252 /// use nihav_codec_support::test::dec_video::test_decoding;
 253 /// use nihav_core::codecs::RegisteredDecoders;
 254 /// use nihav_core::demuxers::RegisteredDemuxers;
 255 ///
 256 /// let mut dmx_reg = RegisteredDemuxers::new();
 257 /// let mut dec_reg = RegisteredDecoders::new();
 258 /// // ... register RealMedia demuxers and RealVideo decoders ...
 259 /// test_decoding("realmedia", "rv40", "assets/test_file.rmvb", None, &dmx_reg, &dec_reg, ExpectedTestResult::MD5([0x00010203, 0x04050607, 0x08090a0b, 0x0c0d0e0f]));
 260 /// ```
 261 pub fn test_decoding(demuxer: &str, dec_name: &str, filename: &str, limit: Option<u64>,
 262                      dmx_reg: &RegisteredDemuxers, dec_reg: &RegisteredDecoders,
 263                      test: ExpectedTestResult) {
 264     let dmx_f = dmx_reg.find_demuxer(demuxer).unwrap();
 265     let mut file = File::open(filename).unwrap();
 266     let mut fr = FileReader::new_read(&mut file);
 267     let mut br = ByteReader::new(&mut fr);
 268     let mut dmx = create_demuxer(dmx_f, &mut br).unwrap();
 269
 270     let mut decs: Vec<Option<(Box<NADecoderSupport>, Box<dyn NADecoder>)>> = Vec::new();
 271     let mut found = false;
 272     for i in 0..dmx.get_num_streams() {
 273         let s = dmx.get_stream(i).unwrap();
 274         let info = s.get_info();
 275 println!("stream {} codec {} / {}", i, info.get_name(), dec_name);
 276         if !found && (info.get_name() == dec_name) {
 277             let decfunc = dec_reg.find_decoder(info.get_name());
 278             if let Some(df) = decfunc {
 279                 let mut dec = (df)();
 280                 let mut dsupp = Box::new(NADecoderSupport::new());
 281                 dec.init(&mut dsupp, info).unwrap();
 282                 decs.push(Some((dsupp, dec)));
 283                 found = true;
 284             } else {
 285                 decs.push(None);
 286             }
 287         } else {
 288             decs.push(None);
 289         }
 290     }
 291
 292     let mut md5 = MD5::new();
 293     let mut frameiter = if let ExpectedTestResult::MD5Frames(ref vec) = test {
 294             Some(vec.iter())
 295         } else {
 296             None
 297         };
 298     loop {
 299         let pktres = dmx.get_frame();
 300         if let Err(e) = pktres {
 301             if e == DemuxerError::EOF { break; }
 302             panic!("error");
 303         }
 304         let pkt = pktres.unwrap();
 305         let streamno = pkt.get_stream().get_id() as usize;
 306         if let Some((ref mut dsupp, ref mut dec)) = decs[streamno] {
 307             if limit.is_some() && pkt.get_pts().is_some() && pkt.get_pts().unwrap() > limit.unwrap() {
 308                 break;
 309             }
 310             let frm = dec.decode(dsupp, &pkt).unwrap();
 311             match &test {
 312                 ExpectedTestResult::Decodes => {},
 313                 ExpectedTestResult::MD5(_) => { frame_checksum(&mut md5, frm); },
 314                 ExpectedTestResult::MD5Frames(_) => {
 315                     md5 = MD5::new();
 316                     frame_checksum(&mut md5, frm);
 317                     md5.finish();
 318                     if let Some(ref mut iter) = frameiter {
 319                         let ret = iter.next();
 320                         if ret.is_none() { break; }
 321                         let ref_hash = ret.unwrap();
 322                         let mut hash = [0u32; 4];
 323                         md5.get_hash(&mut hash);
 324 println!("frame pts {:?} hash {}", pkt.get_pts(), md5);
 325                         assert_eq!(&hash, ref_hash);
 326                     }
 327                 },
 328                 ExpectedTestResult::GenerateMD5Frames => {
 329                     md5 = MD5::new();
 330                     frame_checksum(&mut md5, frm);
 331                     md5.finish();
 332                     let mut hash = [0u32; 4];
 333                     md5.get_hash(&mut hash);
 334 println!("frame pts {:?} hash [0x{:08x}, 0x{:08x}, 0x{:08x}, 0x{:08x}],", pkt.get_pts(), hash[0], hash[1], hash[2], hash[3]);
 335                 },
 336             };
 337         }
 338     }
 339     if let ExpectedTestResult::MD5(ref ref_hash) = test {
 340         md5.finish();
 341         let mut hash = [0u32; 4];
 342         md5.get_hash(&mut hash);
 343 println!("full hash {}", md5);
 344         assert_eq!(&hash, ref_hash);
 345     }
 346     if let ExpectedTestResult::GenerateMD5Frames = test {
 347         panic!("generated hashes");
 348     }
 349 }