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use nihav_core::muxers::*;
use std::collections::VecDeque;
const ASSEMBLE_DEPTH: usize = 32;
struct BinkMuxer<'a> {
bw: &'a mut ByteWriter<'a>,
naudio: usize,
maxsize: u32,
nframes: usize,
index: Vec<u32>,
index_start: u64,
data_start: u64,
video_parts: VecDeque<(NABufferRef<Vec<u8>>, bool)>,
audio_parts: Vec<VecDeque<NABufferRef<Vec<u8>>>>,
alen: Vec<u32>,
}
impl<'a> BinkMuxer<'a> {
fn new(bw: &'a mut ByteWriter<'a>) -> Self {
Self {
bw,
naudio: 0,
maxsize: 0,
nframes: 0,
index: Vec::new(),
index_start: 0,
data_start: 0,
video_parts: VecDeque::with_capacity(ASSEMBLE_DEPTH),
audio_parts: Vec::new(),
alen: Vec::new(),
}
}
fn write_frame(&mut self, flush: bool) -> MuxerResult<bool> {
if self.video_parts.is_empty() {
return Ok(false);
}
let has_audio = flush || self.audio_parts.iter().fold(true, |acc, apart| acc & !apart.is_empty());
if !has_audio {
return Ok(false);
}
let (vbuf, kf) = self.video_parts.pop_front().unwrap();
let start = self.bw.tell();
for (apart, maxalen) in self.audio_parts.iter_mut().zip(self.alen.iter_mut()) {
if let Some(buf) = apart.pop_front() {
validate!(buf.len() > 4);
let alen = read_u32le(&buf)?;
*maxalen = (*maxalen).max(alen);
self.bw.write_u32le(buf.len() as u32)?;
self.bw.write_buf(&buf)?;
} else {
self.bw.write_u32le(0)?;
}
}
self.bw.write_buf(&vbuf)?;
if (self.bw.tell() & 1) != 0 {
self.bw.write_byte(0)?; // padding
}
let frame_size = (self.bw.tell() - start) as u32;
self.maxsize = self.maxsize.max(frame_size);
let mut ix = start as u32;
if kf {
ix |= 1;
}
self.index.push(ix);
Ok(true)
}
}
impl<'a> MuxCore<'a> for BinkMuxer<'a> {
fn create(&mut self, strmgr: &StreamManager) -> MuxerResult<()> {
if strmgr.get_num_streams() == 0 {
return Err(MuxerError::InvalidArgument);
}
if strmgr.get_num_streams() > 257 {
return Err(MuxerError::UnsupportedFormat);
}
let vstream = strmgr.get_stream(0).unwrap();
if vstream.get_media_type() != StreamType::Video {
println!("bink: first stream must be video");
return Err(MuxerError::UnsupportedFormat);
}
let info = vstream.get_info();
if !matches!(info.get_name(), "bink-video" | "bink2-video") {
return Err(MuxerError::UnsupportedFormat);
}
for strm in strmgr.iter().skip(1) {
if strm.get_media_type() == StreamType::Audio {
if !matches!(strm.get_info().get_name(), "bink-audio-dct" | "bink-audio-rdft") {
return Err(MuxerError::UnsupportedFormat);
}
self.naudio += 1;
} else {
return Err(MuxerError::UnsupportedFormat);
}
}
//todo determine nframes properly
self.nframes = vstream.get_duration() as usize;
if self.nframes == 0 {
println!("Cannot create Bink file with an undefined number of frames\n");
return Err(MuxerError::NotImplemented);
}
// video header
if let Some(edata) = info.get_extradata() {
let vinfo = info.get_properties().get_video_info().unwrap();
validate!(edata.len() >= 8);
self.bw.write_buf(&edata[..4])?;
self.bw.write_u32le(0)?; // file size
self.bw.write_u32le(0)?; // number of frames
self.bw.write_u32le(0)?; // largest frame size
self.bw.write_u32le(0)?; // number of frames again
self.bw.write_u32le(vinfo.width as u32)?;
self.bw.write_u32le(vinfo.height as u32)?;
self.bw.write_u32le(vstream.tb_den)?;
self.bw.write_u32le(vstream.tb_num)?;
self.bw.write_buf(&edata[4..8])?;
} else {
return Err(MuxerError::UnsupportedFormat);
}
// audio header
self.bw.write_u32le(self.naudio as u32)?;
//xxx: some KB2 field
for _ in 0..self.naudio {
self.bw.write_u32le(0)?; // max audio frame duration
}
for astrm in strmgr.iter().skip(1) {
let info = astrm.get_info();
let ainfo = info.get_properties().get_audio_info().unwrap();
self.bw.write_u24le(ainfo.sample_rate)?;
let mut flags = 0;
if info.get_name() == "bink-audio-dct" {
flags |= 0x10;
}
if ainfo.channels == 2 {
flags |= 0x20;
}
if flags == 0x30 { // seems to be common
flags = 0x70;
}
self.bw.write_byte(flags)?;
}
for i in 0..self.naudio {
self.bw.write_u32le(i as u32)?;
}
for _ in 0..self.naudio {
self.audio_parts.push(VecDeque::with_capacity(ASSEMBLE_DEPTH));
self.alen.push(0);
}
self.index_start = self.bw.tell();
for _ in 0..=self.nframes {
self.bw.write_u32le(0)?;
}
self.data_start = self.bw.tell();
Ok(())
}
fn mux_frame(&mut self, _strmgr: &StreamManager, pkt: NAPacket) -> MuxerResult<()> {
if self.data_start == 0 {
return Err(MuxerError::NotCreated);
}
let stream = pkt.get_stream();
let str_num = stream.get_num();
let src = pkt.get_buffer();
if str_num == 0 { // video
self.video_parts.push_back((src, pkt.is_keyframe()));
if self.video_parts.len() >= ASSEMBLE_DEPTH {
while self.write_frame(false)? {
}
}
if self.video_parts.len() >= ASSEMBLE_DEPTH {
self.write_frame(true)?;
}
} else {
self.audio_parts[str_num - 1].push_back(src);
}
Ok(())
}
fn flush(&mut self) -> MuxerResult<()> {
Ok(())
}
fn end(&mut self) -> MuxerResult<()> {
while self.write_frame(true)? {
}
let full_size = self.bw.tell();
//xxx: if index.len() <= nframes move data back and patch index and full_size
self.index.push(self.bw.tell() as u32);
self.bw.seek(SeekFrom::Start(4))?;
self.bw.write_u32le((full_size - 8) as u32)?;
self.bw.write_u32le(self.index.len() as u32 - 1)?;
self.bw.write_u32le(self.maxsize)?;
self.bw.write_u32le(self.index.len() as u32 - 1)?;
self.bw.seek(SeekFrom::Start(44))?; //xxx: or 48 for Bink2
for &alen in self.alen.iter() {
self.bw.write_u32le(alen)?;
}
self.bw.seek(SeekFrom::Start(self.index_start))?;
for &idx in self.index.iter() {
self.bw.write_u32le(idx)?;
}
Ok(())
}
}
impl<'a> NAOptionHandler for BinkMuxer<'a> {
fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
fn set_options(&mut self, _options: &[NAOption]) { }
fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
}
pub struct BinkMuxerCreator {}
impl MuxerCreator for BinkMuxerCreator {
fn new_muxer<'a>(&self, bw: &'a mut ByteWriter<'a>) -> Box<dyn MuxCore<'a> + 'a> {
Box::new(BinkMuxer::new(bw))
}
fn get_name(&self) -> &'static str { "bink" }
fn get_capabilities(&self) -> MuxerCapabilities { MuxerCapabilities::Universal }
}
#[cfg(test)]
mod test {
use nihav_core::codecs::*;
use nihav_core::demuxers::*;
use nihav_core::muxers::*;
use nihav_codec_support::test::enc_video::*;
use crate::*;
#[test]
fn test_bink_muxer() {
let mut dmx_reg = RegisteredDemuxers::new();
rad_register_all_demuxers(&mut dmx_reg);
//test sample: https://samples.mplayerhq.hu/game-formats/bink/ActivisionLogo
let dec_config = DecoderTestParams {
demuxer: "bink",
in_name: "assets/RAD/ActivisionLogo.bik",
limit: None,
stream_type: StreamType::None,
dmx_reg, dec_reg: RegisteredDecoders::new(),
};
let mut mux_reg = RegisteredMuxers::new();
rad_register_all_muxers(&mut mux_reg);
/*let enc_config = EncoderTestParams {
muxer: "bink",
enc_name: "",
out_name: "muxed.bink",
mux_reg, enc_reg: RegisteredEncoders::new(),
};
test_remuxing(&dec_config, &enc_config);*/
test_remuxing_md5(&dec_config, "bink", &mux_reg,
[0x98e1892c, 0xcac2f087, 0x7350256e, 0xc71c927a]);
}
}
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