From 366d60cc06e8deec212804065d80980f1b57b566 Mon Sep 17 00:00:00 2001 From: Kostya Shishkov Date: Sat, 10 Jun 2023 12:31:39 +0200 Subject: [PATCH] codec_support/test: add a function for testing multi-threaded decoders --- nihav-codec-support/src/test/dec_video.rs | 173 ++++++++++++++++++++++ 1 file changed, 173 insertions(+) diff --git a/nihav-codec-support/src/test/dec_video.rs b/nihav-codec-support/src/test/dec_video.rs index 91f5763..035e89d 100644 --- a/nihav-codec-support/src/test/dec_video.rs +++ b/nihav-codec-support/src/test/dec_video.rs @@ -5,6 +5,7 @@ use nihav_core::codecs::*; use nihav_core::demuxers::*; //use nihav_core::io::byteio::*; //use nihav_core::scale::*; +use nihav_core::reorder::MTFrameReorderer; use super::wavwriter::WavWriter; use super::md5::MD5; use crate::imgwrite::write_pnm; @@ -348,6 +349,178 @@ println!("full hash {}", md5); } } +const THREADS: usize = 3; + +fn check_frame(frm: NAFrameRef, test: &ExpectedTestResult, glbl_md5: &mut MD5, frameiter: &mut Option>, last_ts: &mut Option) -> bool { + let frm_pts = frm.get_pts(); + let frm_dts = frm.get_dts(); + if let (Some(lts), Some(cts)) = (*last_ts, frm_dts) { + assert!(lts < cts); + } + *last_ts = frm_dts; + match test { + ExpectedTestResult::Decodes => {}, + ExpectedTestResult::MD5(_) => { frame_checksum(glbl_md5, frm); }, + ExpectedTestResult::MD5Frames(_) => { + let mut loc_md5 = MD5::new(); + frame_checksum(&mut loc_md5, frm); + loc_md5.finish(); + if let Some(ref mut iter) = frameiter { + let ret = iter.next(); + if ret.is_none() { + return true; + } + let ref_hash = ret.unwrap(); + let mut hash = [0u32; 4]; + loc_md5.get_hash(&mut hash); +println!("frame pts {:?} dts {:?} hash {}", frm_pts, frm_dts, loc_md5); + assert_eq!(&hash, ref_hash); + } + }, + ExpectedTestResult::GenerateMD5Frames => { + let mut loc_md5 = MD5::new(); + frame_checksum(&mut loc_md5, frm); + loc_md5.finish(); + let mut hash = [0u32; 4]; + loc_md5.get_hash(&mut hash); +println!("frame pts {:?} dts {:?} hash [0x{:08x}, 0x{:08x}, 0x{:08x}, 0x{:08x}],", frm_pts, frm_dts, hash[0], hash[1], hash[2], hash[3]); + }, + }; + false +} + +/// Tests multi-threaded decoder for requested codec in provided file. +/// +/// The syntax is very similar to [`test_file_decoding`] except that it tests multi-threaded decoders instead. +/// +/// [`test_file_decoding`]: ./fn.test_file_decoding.html +pub fn test_mt_decoding(demuxer: &str, dec_name: &str, filename: &str, limit: Option, + dmx_reg: &RegisteredDemuxers, dec_reg: &RegisteredMTDecoders, + test: ExpectedTestResult) { + let mut dec_threads = THREADS; + for (key, value) in std::env::vars_os() { + if key == "MT_THREADS" { + if let Some(val) = value.to_str() { + dec_threads = val.parse::().unwrap_or(THREADS); + break; + } + } + } + + let dmx_f = dmx_reg.find_demuxer(demuxer).expect("demuxer is not found"); + let mut file = File::open(filename).expect("input file should be present"); + let mut fr = FileReader::new_read(&mut file); + let mut br = ByteReader::new(&mut fr); + let mut dmx = create_demuxer(dmx_f, &mut br).expect("demuxer can't be created"); + + let mut decs: Vec, 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()); + if let Some(df) = decfunc { + let mut dec = (df)(); + let mut dsupp = Box::new(NADecoderSupport::new()); + dec.init(&mut dsupp, info, dec_threads).unwrap(); + decs.push(Some((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 + }; + let mut reord = MTFrameReorderer::new(); + let mut last_ts = None; + 'dec_loop: loop { + let pktres = dmx.get_frame(); + if let Err(e) = pktres { + if e == DemuxerError::EOF { break; } + panic!("error"); + } + let pkt = pktres.expect("packet"); + let streamno = pkt.get_stream().get_id() as usize; + if let Some((ref mut dsupp, ref mut dec)) = decs[streamno] { + if limit.is_some() && pkt.get_pts().is_some() && pkt.get_pts().unwrap() > limit.unwrap() { + break; + } + let queue_id = reord.register_frame(); + match dec.queue_pkt(dsupp, &pkt, queue_id) { + Ok(true) => {}, + Ok(false) => { + while !dec.can_take_input() || dec.has_output() { + match dec.get_frame() { + (Ok(frm), id) => { + reord.add_frame(frm, id); + while let Some(nfrm) = reord.get_frame() { + if check_frame(nfrm, &test, &mut md5, &mut frameiter, &mut last_ts) { + break 'dec_loop; + } + } + }, + (Err(err), id) => { + reord.drop_frame(id); + panic!("frame {} decoding error {:?}", id, err); + }, + }; + } + match dec.queue_pkt(dsupp, &pkt, queue_id) { + Ok(true) => {}, + Ok(false) => panic!("still can't queue frame!"), + Err(err) => panic!("queueing error {:?}", err), + }; + }, + Err(err) => panic!("queueing error {:?}", err), + }; + + } + } + 'tail_loop: for dentry in decs.iter_mut() { + if let Some((_, ref mut dec)) = dentry { + loop { + match dec.get_frame() { + (Ok(frm), id) => { + reord.add_frame(frm, id); + while let Some(nfrm) = reord.get_frame() { + if check_frame(nfrm, &test, &mut md5, &mut frameiter, &mut last_ts) { + break 'tail_loop; + } + } + }, + (Err(DecoderError::NoFrame), _) => break, + (Err(err), id) => panic!("frame {} decoding error {:?}", id, err), + }; + } + while let Some(nfrm) = reord.get_last_frames() { + if check_frame(nfrm, &test, &mut md5, &mut frameiter, &mut last_ts) { + break; + } + } + } + } + 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"); + } +} + /// Tests decoding of provided file by outputting video frames as PNM (PPM for RGB video, PGM for YUV). /// /// This function expects the following arguments: -- 2.30.2