From a51efcfd72c37096fb58b5fd8fe9083e477f361b Mon Sep 17 00:00:00 2001 From: Kostya Shishkov Date: Tue, 23 Apr 2024 18:51:46 +0200 Subject: [PATCH] codec_support/test: add test_decoding_raw() This function will be used to test decoders with payload from raw streams (i.e. it requries raw stream demuxers and packetisation steps). --- nihav-codec-support/src/test/dec_video.rs | 117 ++++++++++++++++++++++ 1 file changed, 117 insertions(+) diff --git a/nihav-codec-support/src/test/dec_video.rs b/nihav-codec-support/src/test/dec_video.rs index 8915a73..9833f23 100644 --- a/nihav-codec-support/src/test/dec_video.rs +++ b/nihav-codec-support/src/test/dec_video.rs @@ -349,6 +349,123 @@ println!("full hash {}", md5); } } +/// Tests decoder for requested codec in provided file with raw streams. +/// +/// This functions tries to decode a stream corresponding to `dec_name` codec in input file and validate the results against expected ones. +/// +/// Since the function is intended for tests, it will panic instead of returning an error. +/// +/// # Examples +/// +/// Test FLAC decoder in test stream: +/// ```no_run +/// use nihav_codec_support::test::ExpectedTestResult; +/// use nihav_codec_support::test::dec_video::test_decoding_raw; +/// use nihav_core::codecs::RegisteredDecoders; +/// use nihav_core::demuxers::RegisteredDemuxers; +/// +/// let mut dmx_reg = RegisteredRawDemuxers::new(); +/// let mut pkt_reg = RegisteredPacketisers::new(); +/// let mut dec_reg = RegisteredDecoders::new(); +/// // ... register FLAC demuxer, packetiser and decoders ... +/// test_decoding_raw("flac", "flac", "assets/test_file.flac", None, &dmx_reg, &pkt_reg, &dec_reg, ExpectedTestResult::MD5([0x00010203, 0x04050607, 0x08090a0b, 0x0c0d0e0f])); +/// ``` +pub fn test_decoding_raw(demuxer: &str, dec_name: &str, filename: &str, limit: Option, + dmx_reg: &RegisteredRawDemuxers, pkt_reg: &RegisteredPacketisers, + dec_reg: &RegisteredDecoders, test: ExpectedTestResult) { + let dmx_f = dmx_reg.find_demuxer(demuxer).unwrap(); + let mut file = File::open(filename).unwrap(); + let mut fr = FileReader::new_read(&mut file); + let mut br = ByteReader::new(&mut fr); + let mut dmx = create_raw_demuxer(dmx_f, &mut br).unwrap(); + + let mut decs: Vec, Box, Box)>> = Vec::new(); + let mut found = false; + for i in 0..dmx.get_num_streams() { + let s = dmx.get_stream(i).unwrap(); + let info = s.get_info(); +println!("stream {} codec {} / {}", i, info.get_name(), dec_name); + if !found && (info.get_name() == dec_name) { + let decfunc = dec_reg.find_decoder(info.get_name()); + let pktfunc = pkt_reg.find_packetiser(info.get_name()); + if let (Some(df), Some(pf)) = (decfunc, pktfunc) { + let mut pkt = (pf)(); + pkt.attach_stream(s); + let mut dec = (df)(); + let mut dsupp = Box::new(NADecoderSupport::new()); + dec.init(&mut dsupp, info).unwrap(); + decs.push(Some((pkt, dsupp, dec))); + found = true; + } else { + decs.push(None); + } + } else { + decs.push(None); + } + } + + let mut md5 = MD5::new(); + let mut frameiter = if let ExpectedTestResult::MD5Frames(ref vec) = test { + Some(vec.iter()) + } else { + None + }; + loop { + let datares = dmx.get_data(); + if let Err(e) = datares { + if e == DemuxerError::EOF { break; } + panic!("error"); + } + let data = datares.unwrap(); + let streamno = data.get_stream().get_id() as usize; + if let Some((ref mut pktr, ref mut dsupp, ref mut dec)) = decs[streamno] { + pktr.add_data(&data.get_buffer()); + while let Ok(Some(pkt)) = pktr.get_packet(data.get_stream()) { + if limit.is_some() && pkt.get_pts().is_some() && pkt.get_pts().unwrap() > limit.unwrap() { + break; + } + let frm = dec.decode(dsupp, &pkt).unwrap(); + match &test { + ExpectedTestResult::Decodes => {}, + ExpectedTestResult::MD5(_) => { frame_checksum(&mut md5, frm); }, + ExpectedTestResult::MD5Frames(_) => { + md5 = MD5::new(); + frame_checksum(&mut md5, frm); + md5.finish(); + if let Some(ref mut iter) = frameiter { + let ret = iter.next(); + if ret.is_none() { break; } + let ref_hash = ret.unwrap(); + let mut hash = [0u32; 4]; + md5.get_hash(&mut hash); +println!("frame pts {:?} hash {}", pkt.get_pts(), md5); + assert_eq!(&hash, ref_hash); + } + }, + ExpectedTestResult::GenerateMD5Frames => { + md5 = MD5::new(); + frame_checksum(&mut md5, frm); + md5.finish(); + let mut hash = [0u32; 4]; + md5.get_hash(&mut hash); +println!("frame pts {:?} hash [0x{:08x}, 0x{:08x}, 0x{:08x}, 0x{:08x}],", pkt.get_pts(), hash[0], hash[1], hash[2], hash[3]); + }, + }; + } + } + } + if let ExpectedTestResult::MD5(ref ref_hash) = test { + md5.finish(); + let mut hash = [0u32; 4]; + md5.get_hash(&mut hash); +println!("full hash {}", md5); + assert_eq!(&hash, ref_hash); + } + if let ExpectedTestResult::GenerateMD5Frames = test { + panic!("generated hashes"); + } +} + const THREADS: usize = 3; fn check_frame(frm: NAFrameRef, test: &ExpectedTestResult, glbl_md5: &mut MD5, frameiter: &mut Option>, last_ts: &mut Option) -> bool { -- 2.30.2