factor out decoder test

[nihav.git] / src / test / dec_video.rs

use std::fs::File;
use std::io::prelude::*;
use frame::*;
use codecs::*;
use demuxers::*;
use io::byteio::*;
use super::wavwriter::WavWriter;

fn write_pgmyuv(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) {
    let frm = frmref.borrow();
    if let NABufferType::None = frm.get_buffer() { return; }
    let name = format!("assets/{}out{:02}_{:04}.pgm", pfx, strno, num);
    let mut ofile = File::create(name).unwrap();
    let buf = frm.get_buffer().get_vbuf().unwrap();
    let (w, h) = buf.get_dimensions(0);
    let (w2, h2) = buf.get_dimensions(1);
    let tot_h = h + h2;
    let hdr = format!("P5\n{} {}\n255\n", w, tot_h);
    ofile.write_all(hdr.as_bytes()).unwrap();
    let dta = buf.get_data();
    let ls = buf.get_stride(0);
    let mut idx = 0;
    let mut idx2 = w;
    let mut pad: Vec<u8> = Vec::with_capacity((w - w2 * 2) / 2);
    pad.resize((w - w2 * 2) / 2, 0xFF);
    for _ in 0..h {
        let line = &dta[idx..idx2];
        ofile.write_all(line).unwrap();
        idx  += ls;
        idx2 += ls;
    }
    let mut base1 = buf.get_offset(1);
    let stride1 = buf.get_stride(1);
    let mut base2 = buf.get_offset(2);
    let stride2 = buf.get_stride(2);
    for _ in 0..h2 {
        let bend1 = base1 + w2;
        let line = &dta[base1..bend1];
        ofile.write_all(line).unwrap();
        ofile.write_all(pad.as_slice()).unwrap();

        let bend2 = base2 + w2;
        let line = &dta[base2..bend2];
        ofile.write_all(line).unwrap();
        ofile.write_all(pad.as_slice()).unwrap();

        base1 += stride1;
        base2 += stride2;
    }
}

fn write_palppm(pfx: &str, strno: usize, num: u64, frmref: NAFrameRef) {
    let frm = frmref.borrow();
    let name = format!("assets/{}out{:02}_{:04}.ppm", pfx, strno, num);
    let mut ofile = File::create(name).unwrap();
    let buf = frm.get_buffer().get_vbuf().unwrap();
    let (w, h) = buf.get_dimensions(0);
    let paloff = buf.get_offset(1);
    let hdr = format!("P6\n{} {}\n255\n", w, h);
    ofile.write_all(hdr.as_bytes()).unwrap();
    let dta = buf.get_data();
    let ls = buf.get_stride(0);
    let mut idx  = 0;
    let mut line: Vec<u8> = Vec::with_capacity(w * 3);
    line.resize(w * 3, 0);
    for _ in 0..h {
        let src = &dta[idx..(idx+w)];
        for x in 0..w {
            let pix = src[x] as usize;
            line[x * 3 + 0] = dta[paloff + pix * 3 + 2];
            line[x * 3 + 1] = dta[paloff + pix * 3 + 1];
            line[x * 3 + 2] = dta[paloff + pix * 3 + 0];
        }
        ofile.write_all(line.as_slice()).unwrap();
        idx  += ls;
    }
}

/*fn open_wav_out(pfx: &str, strno: usize) -> WavWriter {
    let name = format!("assets/{}out{:02}.wav", pfx, strno);
    let mut file = File::create(name).unwrap();
    let mut fw = FileWriter::new_write(&mut file);
    let mut wr = ByteWriter::new(&mut fw);
    WavWriter::new(&mut wr)
}*/

pub fn test_file_decoding(demuxer: &str, name: &str, limit: Option<u64>,
                          decode_video: bool, decode_audio: bool,
                          video_pfx: Option<&str>) {
    let dmx_f = find_demuxer(demuxer).unwrap();
    let mut file = File::open(name).unwrap();
    let mut fr = FileReader::new_read(&mut file);
    let mut br = ByteReader::new(&mut fr);
    let mut dmx = dmx_f.new_demuxer(&mut br);
    dmx.open().unwrap();

    let mut decs: Vec<Option<Box<NADecoder>>> = Vec::new();
    for i in 0..dmx.get_num_streams() {
        let s = dmx.get_stream(i).unwrap();
        let info = s.get_info();
        let decfunc = find_decoder(info.get_name());
        if let Some(df) = decfunc {
            if (decode_video && info.is_video()) || (decode_audio && info.is_audio()) {
                let mut dec = (df)();
                dec.init(info).unwrap();
                decs.push(Some(dec));
            } else {
                decs.push(None);
            }
        } else {
            decs.push(None);
        }
    }

    loop {
        let pktres = dmx.get_frame();
        if let Err(e) = pktres {
            if e == DemuxerError::EOF { break; }
            panic!("error");
        }
        let pkt = pktres.unwrap();
        if limit.is_some() && pkt.get_pts().is_some() {
            if pkt.get_pts().unwrap() > limit.unwrap() { break; }
        }
        let streamno = pkt.get_stream().get_id() as usize;
        if let Some(ref mut dec) = decs[streamno] {
            let frm = dec.decode(&pkt).unwrap();
            if pkt.get_stream().get_info().is_video() && video_pfx.is_some() && frm.borrow().get_frame_type() != FrameType::Skip {
                let pfx = video_pfx.unwrap();
                if frm.borrow().get_buffer().get_vbuf().unwrap().get_info().get_format().is_paletted() {
                    write_palppm(pfx, streamno, pkt.get_pts().unwrap(), frm);
                } else {
                    write_pgmyuv(pfx, streamno, pkt.get_pts().unwrap(), frm);
                }
            }
        }
    }
}

pub fn test_decode_audio(demuxer: &str, name: &str, limit: Option<u64>, audio_pfx: &str) {
    let dmx_f = find_demuxer(demuxer).unwrap();
    let mut file = File::open(name).unwrap();
    let mut fr = FileReader::new_read(&mut file);
    let mut br = ByteReader::new(&mut fr);
    let mut dmx = dmx_f.new_demuxer(&mut br);
    dmx.open().unwrap();

    let mut decs: Vec<Option<Box<NADecoder>>> = Vec::new();
    for i in 0..dmx.get_num_streams() {
        let s = dmx.get_stream(i).unwrap();
        let info = s.get_info();
        let decfunc = find_decoder(info.get_name());
        if let Some(df) = decfunc {
            if info.is_audio() {
                let mut dec = (df)();
                dec.init(info).unwrap();
                decs.push(Some(dec));
            } else {
                decs.push(None);
            }
        } else {
            decs.push(None);
        }
    }

    let name = format!("assets/{}out.wav", audio_pfx);
    let mut file = File::create(name).unwrap();
    let mut fw = FileWriter::new_write(&mut file);
    let mut wr = ByteWriter::new(&mut fw);
    let mut wwr = WavWriter::new(&mut wr);
    let mut wrote_header = false;

    loop {
        let pktres = dmx.get_frame();
        if let Err(e) = pktres {
            if e == DemuxerError::EOF { break; }
            panic!("error");
        }
        let pkt = pktres.unwrap();
        if limit.is_some() && pkt.get_pts().is_some() {
            if pkt.get_pts().unwrap() > limit.unwrap() { break; }
        }
        let streamno = pkt.get_stream().get_id() as usize;
        if let Some(ref mut dec) = decs[streamno] {
            let frm_ = dec.decode(&pkt).unwrap();
            let frm = frm_.borrow();
            if frm.get_info().is_audio() {
                if !wrote_header {
                    wwr.write_header(frm.get_info().as_ref().get_properties().get_audio_info().unwrap()).unwrap();
                    wrote_header = true;
                }
                wwr.write_frame(frm.get_buffer()).unwrap();
            }
        }
    }
}