--- /dev/null
+use nihav_core::formats;
+use nihav_core::codecs::*;
+use nihav_core::io::byteio::*;
+use std::str::FromStr;
+
+
+pub fn get_decoder_video() -> Box<NADecoder> {
+ unimplemented!();
+}
+
+struct BMV3AudioDecoder {
+ ainfo: NAAudioInfo,
+ chmap: NAChannelMap,
+ pred: [i16; 2],
+ nframes: usize,
+}
+
+impl BMV3AudioDecoder {
+ fn new() -> Self {
+ Self {
+ ainfo: NAAudioInfo::new(0, 1, formats::SND_S16P_FORMAT, 0),
+ chmap: NAChannelMap::new(),
+ pred: [0; 2],
+ nframes: 0,
+ }
+ }
+}
+
+fn decode_block(mode: u8, src: &[u8], dst: &mut [i16], mut pred: i16) -> i16 {
+ let steps = &BMV_AUDIO_STEPS[mode as usize];
+ let mut val2 = 0;
+ for i in 0..10 {
+ let val = (src[i * 2 + 0] as usize) + (src[i * 2 + 1] as usize) * 256;
+ pred = pred.wrapping_add(steps[(val >> 10) & 0x1F]);
+ dst[i * 3 + 0] = pred;
+ pred = pred.wrapping_add(steps[(val >> 5) & 0x1F]);
+ dst[i * 3 + 1] = pred;
+ pred = pred.wrapping_add(steps[(val >> 0) & 0x1F]);
+ dst[i * 3 + 2] = pred;
+ val2 = (val2 << 1) | (val >> 15);
+ }
+ pred = pred.wrapping_add(steps[(val2 >> 5) & 0x1F]);
+ dst[3 * 10 + 0] = pred;
+ pred = pred.wrapping_add(steps[(val2 >> 0) & 0x1F]);
+ dst[3 * 10 + 1] = pred;
+ pred
+}
+
+impl NADecoder for BMV3AudioDecoder {
+ fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()> {
+ if let NACodecTypeInfo::Audio(ainfo) = info.get_properties() {
+ self.ainfo = NAAudioInfo::new(ainfo.get_sample_rate(), ainfo.get_channels(), formats::SND_S16P_FORMAT, 32);
+ self.chmap = NAChannelMap::from_str("L,R").unwrap();
+ Ok(())
+ } else {
+ Err(DecoderError::InvalidData)
+ }
+ }
+ fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
+ let info = pkt.get_stream().get_info();
+ if let NACodecTypeInfo::Audio(_) = info.get_properties() {
+ let pktbuf = pkt.get_buffer();
+ validate!(pktbuf.len() > 1);
+ let samples = (pktbuf.len() / 41) * 32;
+ let abuf = alloc_audio_buffer(self.ainfo, samples, self.chmap.clone())?;
+ let mut adata = abuf.get_abuf_i16().unwrap();
+ let off1 = adata.get_offset(1);
+ let mut dst = adata.get_data_mut();
+ let mut first = pktbuf[0] == 0;
+ let psrc = &pktbuf[1..];
+ for (n, src) in psrc.chunks_exact(41).enumerate() {
+ let aoff0 = n * 32;
+ let aoff1 = aoff0 + off1;
+ if first {
+ let mode = src[40];
+ self.pred[0] = decode_block(mode >> 4, &src[0..], &mut dst[aoff0..], self.pred[0]);
+ self.pred[1] = decode_block(mode & 0xF, &src[20..], &mut dst[aoff1..], self.pred[1]);
+ } else {
+ let mode = src[0];
+ self.pred[0] = decode_block(mode >> 4, &src[1..], &mut dst[aoff0..], self.pred[0]);
+ self.pred[1] = decode_block(mode & 0xF, &src[21..], &mut dst[aoff1..], self.pred[1]);
+ }
+ first = !first;
+ }
+ self.nframes += 1;
+ let mut frm = NAFrame::new_from_pkt(pkt, info, abuf);
+ frm.set_duration(Some(samples as u64));
+ frm.set_keyframe(false);
+ Ok(Rc::new(RefCell::new(frm)))
+ } else {
+ Err(DecoderError::InvalidData)
+ }
+ }
+}
+
+pub fn get_decoder_audio() -> Box<NADecoder> {
+ Box::new(BMV3AudioDecoder::new())
+}
+
+#[cfg(test)]
+mod test {
+ use nihav_core::codecs::RegisteredDecoders;
+ use nihav_core::demuxers::RegisteredDemuxers;
+ use nihav_core::test::dec_video::*;
+ use crate::codecs::game_register_all_codecs;
+ use crate::demuxers::game_register_all_demuxers;
+ #[test]
+ fn test_bmv_video() {
+ let mut dmx_reg = RegisteredDemuxers::new();
+ game_register_all_demuxers(&mut dmx_reg);
+ let mut dec_reg = RegisteredDecoders::new();
+ game_register_all_codecs(&mut dec_reg);
+
+ let file = "assets/Game/DW3-Loffnote.bmv";
+ test_file_decoding("bmv3", file, Some(40), true, false, None, &dmx_reg, &dec_reg);
+ }
+ #[test]
+ fn test_bmv_audio() {
+ let mut dmx_reg = RegisteredDemuxers::new();
+ game_register_all_demuxers(&mut dmx_reg);
+ let mut dec_reg = RegisteredDecoders::new();
+ game_register_all_codecs(&mut dec_reg);
+
+ let file = "assets/Game/DW3-Loffnote.bmv";
+ test_decode_audio("bmv3", file, None, "bmv3", &dmx_reg, &dec_reg);
+ }
+}
+
+const BMV_AUDIO_STEPS: [[i16; 32]; 16] = [
+ [
+ 0x0000, 0x0400, 0x0800, 0x0C00, 0x1000, 0x1400, 0x1800, 0x1C00,
+ 0x2000, 0x2400, 0x2800, 0x2C00, 0x3000, 0x3400, 0x3800, 0x3C00,
+ -0x4000, -0x3C00, -0x3800, -0x3400, -0x3000, -0x2C00, -0x2800, -0x2400,
+ -0x2000, -0x1C00, -0x1800, -0x1400, -0x1000, -0x0C00, -0x0800, -0x0400
+ ], [
+ 0x0000, 0x0200, 0x0400, 0x0600, 0x0800, 0x0A00, 0x0C00, 0x0E00,
+ 0x1000, 0x1200, 0x1400, 0x1600, 0x1800, 0x1A00, 0x1C00, 0x1E00,
+ -0x2000, -0x1E00, -0x1C00, -0x1A00, -0x1800, -0x1600, -0x1400, -0x1200,
+ -0x1000, -0x0E00, -0x0C00, -0x0A00, -0x0800, -0x0600, -0x0400, -0x0200
+ ], [
+ 0x0000, 0x0100, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600, 0x0700,
+ 0x0800, 0x0900, 0x0A00, 0x0B00, 0x0C00, 0x0D00, 0x0E00, 0x0F00,
+ -0x1000, -0x0F00, -0x0E00, -0x0D00, -0x0C00, -0x0B00, -0x0A00, -0x0900,
+ -0x0800, -0x0700, -0x0600, -0x0500, -0x0400, -0x0300, -0x0200, -0x0100
+ ], [
+ 0x000, 0x080, 0x100, 0x180, 0x200, 0x280, 0x300, 0x380,
+ 0x400, 0x480, 0x500, 0x580, 0x600, 0x680, 0x700, 0x780,
+ -0x800, -0x780, -0x700, -0x680, -0x600, -0x580, -0x500, -0x480,
+ -0x400, -0x380, -0x300, -0x280, -0x200, -0x180, -0x100, -0x080
+ ], [
+ 0x000, 0x048, 0x090, 0x0D8, 0x120, 0x168, 0x1B0, 0x1F8,
+ 0x240, 0x288, 0x2D0, 0x318, 0x360, 0x3A8, 0x3F0, 0x438,
+ -0x480, -0x438, -0x3F0, -0x3A8, -0x360, -0x318, -0x2D0, -0x288,
+ -0x240, -0x1F8, -0x1B0, -0x168, -0x120, -0x0D8, -0x090, -0x048
+ ], [
+ 0x000, 0x030, 0x060, 0x090, 0x0C0, 0x0F0, 0x120, 0x150,
+ 0x180, 0x1B0, 0x1E0, 0x210, 0x240, 0x270, 0x2A0, 0x2D0,
+ -0x300, -0x2D0, -0x2A0, -0x270, -0x240, -0x210, -0x1E0, -0x1B0,
+ -0x180, -0x150, -0x120, -0x0F0, -0x0C0, -0x090, -0x060, -0x030
+ ], [
+ 0x000, 0x020, 0x040, 0x060, 0x080, 0x0A0, 0x0C0, 0x0E0,
+ 0x100, 0x120, 0x140, 0x160, 0x180, 0x1A0, 0x1C0, 0x1E0,
+ -0x200, -0x1E0, -0x1C0, -0x1A0, -0x180, -0x160, -0x140, -0x120,
+ -0x100, -0x0E0, -0x0C0, -0x0A0, -0x080, -0x060, -0x040, -0x020
+ ], [
+ 0x000, 0x016, 0x02C, 0x042, 0x058, 0x06E, 0x084, 0x09A,
+ 0x0B0, 0x0C6, 0x0DC, 0x0F2, 0x108, 0x11E, 0x134, 0x14A,
+ -0x160, -0x14A, -0x134, -0x11E, -0x108, -0x0F2, -0x0DC, -0x0C6,
+ -0x0B0, -0x09A, -0x084, -0x06E, -0x058, -0x042, -0x02C, -0x016
+ ], [
+ 0x000, 0x010, 0x020, 0x030, 0x040, 0x050, 0x060, 0x070,
+ 0x080, 0x090, 0x0A0, 0x0B0, 0x0C0, 0x0D0, 0x0E0, 0x0F0,
+ -0x100, -0x0F0, -0x0E0, -0x0D0, -0x0C0, -0x0B0, -0x0A0, -0x090,
+ -0x080, -0x070, -0x060, -0x050, -0x040, -0x030, -0x020, -0x010
+ ], [
+ 0x00, 0x0B, 0x16, 0x21, 0x2C, 0x37, 0x42, 0x4D,
+ 0x58, 0x63, 0x6E, 0x79, 0x84, 0x8F, 0x9A, 0xA5,
+ -0xB0, -0xA5, -0x9A, -0x8F, -0x84, -0x79, -0x6E, -0x63,
+ -0x58, -0x4D, -0x42, -0x37, -0x2C, -0x21, -0x16, -0x0B
+ ], [
+ 0x00, 0x08, 0x10, 0x18, 0x20, 0x28, 0x30, 0x38,
+ 0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78,
+ -0x80, -0x78, -0x70, -0x68, -0x60, -0x58, -0x50, -0x48,
+ -0x40, -0x38, -0x30, -0x28, -0x20, -0x18, -0x10, -0x08
+ ], [
+ 0x00, 0x06, 0x0C, 0x12, 0x18, 0x1E, 0x24, 0x2A,
+ 0x30, 0x36, 0x3C, 0x42, 0x48, 0x4E, 0x54, 0x5A,
+ -0x60, -0x5A, -0x54, -0x4E, -0x48, -0x42, -0x3C, -0x36,
+ -0x30, -0x2A, -0x24, -0x1E, -0x18, -0x12, -0x0C, -0x06
+ ], [
+ 0x00, 0x04, 0x08, 0x0C, 0x10, 0x14, 0x18, 0x1C,
+ 0x20, 0x24, 0x28, 0x2C, 0x30, 0x34, 0x38, 0x3C,
+ -0x40, -0x3C, -0x38, -0x34, -0x30, -0x2C, -0x28, -0x24,
+ -0x20, -0x1C, -0x18, -0x14, -0x10, -0x0C, -0x08, -0x04
+ ], [
+ 0x00, 0x02, 0x05, 0x08, 0x0B, 0x0D, 0x10, 0x13,
+ 0x16, 0x18, 0x1B, 0x1E, 0x21, 0x23, 0x26, 0x29,
+ -0x2C, -0x2A, -0x27, -0x24, -0x21, -0x1F, -0x1C, -0x19,
+ -0x16, -0x14, -0x11, -0x0E, -0x0B, -0x09, -0x06, -0x03
+ ], [
+ 0x00, 0x01, 0x03, 0x05, 0x07, 0x08, 0x0A, 0x0C,
+ 0x0E, 0x0F, 0x11, 0x13, 0x15, 0x16, 0x18, 0x1A,
+ -0x1C, -0x1B, -0x19, -0x17, -0x15, -0x14, -0x12, -0x10,
+ -0x0E, -0x0D, -0x0B, -0x09, -0x07, -0x06, -0x04, -0x02
+ ], [
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+ 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+ -0x10, -0x0F, -0x0E, -0x0D, -0x0C, -0x0B, -0x0A, -0x09,
+ -0x08, -0x07, -0x06, -0x05, -0x04, -0x03, -0x02, -0x01
+ ]
+];
projects / nihav.git / blobdiff