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use nihav_core::codecs::*;
struct RawDecoder {
info: NACodecInfoRef,
pal: [u8; 768],
}
impl RawDecoder {
fn new() -> Self {
Self {
info: NACodecInfo::new_dummy(),
pal: [0; 768],
}
}
}
impl NADecoder for RawDecoder {
fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> {
if let NACodecTypeInfo::Video(_vinfo) = info.get_properties() {
self.info = info.clone();
Ok(())
} else {
Err(DecoderError::InvalidData)
}
}
fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
if let NACodecTypeInfo::Video(ref vinfo) = self.info.get_properties() {
let src = pkt.get_buffer();
let width = vinfo.width;
let height = vinfo.height;
if !vinfo.format.model.is_rgb() {
return Err(DecoderError::InvalidData);
}
let depth = if vinfo.format.is_paletted() { 8 } else { vinfo.format.get_total_depth() } as usize;
let buf = match depth {
8 => {
for sd in pkt.side_data.iter() {
match *sd {
NASideData::Palette(_, ref pal) => {
for (dst, src) in self.pal.chunks_mut(3).zip(pal.chunks(4)) {
dst[0] = src[0];
dst[1] = src[1];
dst[2] = src[2];
}
break;
},
_ => {},
};
}
let sstride = (vinfo.width + 3) & !3;
let buf = alloc_video_buffer(*vinfo, 0)?;
let mut frm = buf.get_vbuf().unwrap();
let dstride = frm.get_stride(0);
let paloff = frm.get_offset(1);
let dst = frm.get_data_mut().unwrap();
for (drow, srow) in dst.chunks_mut(dstride).zip(src.chunks(sstride)).take(height) {
drow[..width].copy_from_slice(&srow[..width]);
}
dst[paloff..][..768].copy_from_slice(&self.pal);
buf
},
15 | 16 => {
let sstride = (vinfo.width * 2 + 3) & !3;
let buf = alloc_video_buffer(*vinfo, 0)?;
let mut frm = buf.get_vbuf16().unwrap();
let dstride = frm.get_stride(0);
let dst = frm.get_data_mut().unwrap();
for (drow, srow) in dst.chunks_mut(dstride).zip(src.chunks(sstride)).take(height) {
for (dp, sp) in drow.iter_mut().zip(srow.chunks_exact(2)).take(width) {
*dp = u16::from(sp[0]) | (u16::from(sp[1]) << 8);
}
}
buf
},
24 | 32 => {
let ncomp = vinfo.format.components as usize;
let sstride = (width * (depth / 8) + 3) & !3;
let offs = vec![0; ncomp];
let mut strides = vec![0; ncomp];
strides[0] = sstride;
NABufferType::VideoPacked(NAVideoBuffer::from_raw_parts(*vinfo, src, offs, strides).into_ref())
},
_ => return Err(DecoderError::NotImplemented),
};
let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), buf);
frm.set_keyframe(true);
frm.set_frame_type(FrameType::I);
Ok(frm.into_ref())
} else {
Err(DecoderError::Bug)
}
}
fn flush(&mut self) {}
}
impl NAOptionHandler for RawDecoder {
fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
fn set_options(&mut self, _options: &[NAOption]) { }
fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
}
pub fn get_decoder() -> Box<dyn NADecoder + Send> {
Box::new(RawDecoder::new())
}
#[cfg(test)]
mod test {
use nihav_core::codecs::RegisteredDecoders;
use nihav_core::demuxers::RegisteredDemuxers;
use nihav_codec_support::test::dec_video::*;
use crate::generic_register_all_decoders;
use crate::generic_register_all_demuxers;
#[test]
fn test_rawvideo_ms_8() {
let mut dmx_reg = RegisteredDemuxers::new();
generic_register_all_demuxers(&mut dmx_reg);
let mut dec_reg = RegisteredDecoders::new();
generic_register_all_decoders(&mut dec_reg);
// sample: https://samples.mplayerhq.hu/V-codecs/Uncompressed/8bpp.avi
test_decoding("avi", "rawvideo-ms", "assets/Misc/8bpp.avi", Some(0), &dmx_reg,
&dec_reg, ExpectedTestResult::MD5([0xb6629439, 0x6ea482e9, 0x42c84d7c, 0x46c94431]));
}
#[test]
fn test_rawvideo_ms_16() {
let mut dmx_reg = RegisteredDemuxers::new();
generic_register_all_demuxers(&mut dmx_reg);
let mut dec_reg = RegisteredDecoders::new();
generic_register_all_decoders(&mut dec_reg);
// sample: https://samples.mplayerhq.hu/V-codecs/Uncompressed/16bpp.avi
test_decoding("avi", "rawvideo-ms", "assets/Misc/16bpp.avi", Some(0), &dmx_reg,
&dec_reg, ExpectedTestResult::MD5([0xe80e16a1, 0x2d50659e, 0x413d24af, 0xea3bee05]));
}
#[test]
fn test_rawvideo_ms_24() {
let mut dmx_reg = RegisteredDemuxers::new();
generic_register_all_demuxers(&mut dmx_reg);
let mut dec_reg = RegisteredDecoders::new();
generic_register_all_decoders(&mut dec_reg);
// sample:https://samples.mplayerhq.hu/V-codecs/Uncompressed/keve.avi
test_decoding("avi", "rawvideo-ms", "assets/Misc/keve.avi", Some(0), &dmx_reg,
&dec_reg, ExpectedTestResult::MD5([0x9514ac1f, 0x4512cc62, 0x069485ba, 0x084a1e63]));
}
#[test]
fn test_rawvideo_ms_32() {
let mut dmx_reg = RegisteredDemuxers::new();
generic_register_all_demuxers(&mut dmx_reg);
let mut dec_reg = RegisteredDecoders::new();
generic_register_all_decoders(&mut dec_reg);
// sample: https://samples.mplayerhq.hu/V-codecs/Uncompressed/Logo-Uncompressed.zip
test_decoding("avi", "rawvideo-ms", "assets/Misc/VRMLuncompressed.avi", Some(0), &dmx_reg,
&dec_reg, ExpectedTestResult::MD5([0xf4c9d468, 0x8f42c576, 0xc8eb522a, 0x75f654b1]));
}
}
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