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use nihav_core::muxers::*;
struct EAMuxer<'a> {
bw: &'a mut ByteWriter<'a>,
has_alpha: bool,
nframes: u32,
max_size: [u32; 2],
}
impl<'a> EAMuxer<'a> {
fn new(bw: &'a mut ByteWriter<'a>) -> Self {
Self {
bw,
has_alpha: false,
nframes: 0,
max_size: [0; 2],
}
}
}
impl<'a> MuxCore<'a> for EAMuxer<'a> {
#[allow(clippy::unreadable_literal)]
#[allow(clippy::cast_lossless)]
fn create(&mut self, strmgr: &StreamManager) -> MuxerResult<()> {
if strmgr.get_num_streams() == 0 {
return Err(MuxerError::InvalidArgument);
}
let mut nvideo = 0;
for stream in strmgr.iter() {
if stream.get_media_type() == StreamType::Video {
if stream.get_info().get_name() != "vp6" {
return Err(MuxerError::UnsupportedFormat);
}
nvideo += 1;
} else {
return Err(MuxerError::UnsupportedFormat);
}
}
if nvideo == 0 || nvideo > 2 {
return Err(MuxerError::UnsupportedFormat);
}
self.has_alpha = nvideo == 2;
if self.has_alpha {
self.bw.write_buf(b"AVP6\x08\x00\x00\x00")?;
}
for (str_no, stream) in strmgr.iter().enumerate() {
if let NACodecTypeInfo::Video(ref vinfo) = stream.get_info().get_properties() {
let tag = if str_no == 0 { b"MVhd" } else { b"AVhd" };
self.bw.write_buf(tag)?;
self.bw.write_u32le(0x20)?;
self.bw.write_buf(b"vp60")?;
self.bw.write_u16le(vinfo.width as u16)?;
self.bw.write_u16le(vinfo.height as u16)?;
self.bw.write_u32le(0)?;
self.bw.write_u32le(0)?;
self.bw.write_u32le(stream.tb_den)?;
self.bw.write_u32le(stream.tb_num)?;
} else {
unimplemented!();
}
}
Ok(())
}
#[allow(clippy::collapsible_else_if)]
fn mux_frame(&mut self, _strmgr: &StreamManager, pkt: NAPacket) -> MuxerResult<()> {
let stream = pkt.get_stream();
let str_num = stream.get_num();
if str_num > 2 {
return Err(MuxerError::UnsupportedFormat);
}
let chunk_len = pkt.get_buffer().len() as u32;
let tag = if pkt.is_keyframe() {
if str_num == 0 { b"MV0K" } else { b"AV0K" }
} else {
if str_num == 0 { b"MV0F" } else { b"AV0F" }
};
self.max_size[str_num] = self.max_size[str_num].max(pkt.get_buffer().len() as u32);
self.bw.write_buf(tag)?;
self.bw.write_u32le(chunk_len + 8)?;
self.bw.write_buf(&pkt.get_buffer())?;
if str_num == 0 {
self.nframes += 1;
}
Ok(())
}
fn flush(&mut self) -> MuxerResult<()> {
Ok(())
}
fn end(&mut self) -> MuxerResult<()> {
if !self.has_alpha {
self.bw.seek(SeekFrom::Start(0x10))?;
self.bw.write_u32le(self.nframes)?;
self.bw.write_u32le(self.max_size[0])?;
} else {
self.bw.seek(SeekFrom::Start(0x18))?;
self.bw.write_u32le(self.nframes)?;
self.bw.write_u32le(self.max_size[0])?;
self.bw.seek(SeekFrom::Start(0x38))?;
self.bw.write_u32le(self.nframes)?;
self.bw.write_u32le(self.max_size[1])?;
}
Ok(())
}
}
impl<'a> NAOptionHandler for EAMuxer<'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 EAMuxerCreator {}
impl MuxerCreator for EAMuxerCreator {
fn new_muxer<'a>(&self, bw: &'a mut ByteWriter<'a>) -> Box<dyn MuxCore<'a> + 'a> {
Box::new(EAMuxer::new(bw))
}
fn get_name(&self) -> &'static str { "ea" }
fn get_capabilities(&self) -> MuxerCapabilities { MuxerCapabilities::OnlyVideo }
}
#[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_ea_muxer() {
let mut dmx_reg = RegisteredDemuxers::new();
nihav_commonfmt::generic_register_all_demuxers(&mut dmx_reg);
let dec_config = DecoderTestParams {
demuxer: "avi",
in_name: "assets/Duck/vp6_crash.avi",
limit: None,
stream_type: StreamType::None,
dmx_reg, dec_reg: RegisteredDecoders::new(),
};
let mut mux_reg = RegisteredMuxers::new();
game_register_all_muxers(&mut mux_reg);
/*let enc_config = EncoderTestParams {
muxer: "ea",
enc_name: "",
out_name: "muxed.ea",
mux_reg, enc_reg: RegisteredEncoders::new(),
};
test_remuxing(&dec_config, &enc_config);*/
test_remuxing_md5(&dec_config, "ea", &mux_reg,
[0xc8c6484d, 0x863de1ae, 0x97a38a31, 0x59e2a7ef]);
}
}
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