nihav_commonfmt = { path = "../nihav-commonfmt", default-features=false, features = ["all_demuxers", "all_muxers"] }
[features]
-default = ["all_decoders", "all_encoders"]
+default = ["all_decoders", "all_encoders", "all_demuxers"]
all_decoders = ["all_video_decoders", "all_audio_decoders"]
all_video_decoders = ["decoder_truemotion1", "decoder_truemotionrt", "decoder_truemotion2", "decoder_truemotion2x", "decoder_vp3", "decoder_vp4", "decoder_vp5", "decoder_vp6", "decoder_vp7"]
all_video_encoders = ["encoder_vp6"]
encoders = []
-encoder_vp6 = ["encoders"]
\ No newline at end of file
+encoder_vp6 = ["encoders"]
+
+all_demuxers = ["demuxer_ivf"]
+demuxers = []
+
+demuxer_ivf = ["demuxers"]
\ No newline at end of file
--- /dev/null
+use nihav_core::demuxers::*;
+
+struct IVFDemuxer<'a> {
+ src: &'a mut ByteReader<'a>,
+ nframes: u32,
+ frameno: u32,
+}
+
+impl<'a> IVFDemuxer<'a> {
+ fn new(src: &'a mut ByteReader<'a>) -> Self {
+ IVFDemuxer {
+ src,
+ nframes: 0,
+ frameno: 0,
+ }
+ }
+}
+
+impl<'a> DemuxCore<'a> for IVFDemuxer<'a> {
+ fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> {
+ let tag = self.src.read_tag()?;
+ validate!(&tag == b"DKIF");
+ let ver = self.src.read_u16le()?;
+ validate!(ver == 0);
+ let hdr_len = self.src.read_u16le()? as usize;
+ validate!(hdr_len >= 32);
+ let fcc = self.src.read_tag()?;
+ let codec_name = match &fcc {
+ b"VP80" => "vp8",
+ _ => "unknown",
+ };
+ let width = self.src.read_u16le()? as usize;
+ let height = self.src.read_u16le()? as usize;
+ validate!(width > 0 && height > 0);
+ let tb_den = self.src.read_u32le()?;
+ let tb_num = self.src.read_u32le()?;
+ self.nframes = self.src.read_u32le()?;
+ self.frameno = 0;
+
+ self.src.seek(SeekFrom::Start(hdr_len as u64))?;
+
+ let vci = NACodecTypeInfo::Video(NAVideoInfo::new(width, height, false, YUV420_FORMAT));
+ let vinfo = NACodecInfo::new(codec_name, vci, None);
+ if strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, tb_num, tb_den, u64::from(self.nframes))).is_none() {
+ return Err(DemuxerError::MemoryError);
+ }
+
+ Ok(())
+ }
+
+ fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
+ while self.frameno < self.nframes {
+ let fsize = self.src.read_u32le()? as usize;
+ let tstamp = self.src.read_u64le()?;
+ self.frameno += 1;
+
+ if fsize == 0 {
+ continue;
+ }
+
+ if let Some(stream) = strmgr.get_stream(0) {
+ let (tb_num, tb_den) = stream.get_timebase();
+ let ts = NATimeInfo::new(Some(tstamp), None, None, tb_num, tb_den);
+ return self.src.read_packet(stream, ts, false, fsize);
+ } else {
+ return Err(DemuxerError::InvalidData);
+ }
+ }
+ Err(DemuxerError::EOF)
+ }
+
+ fn seek(&mut self, _time: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> {
+ Err(DemuxerError::NotPossible)
+ }
+ fn get_duration(&self) -> u64 { 0 }
+}
+
+impl<'a> NAOptionHandler for IVFDemuxer<'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 IVFDemuxerCreator { }
+
+impl DemuxerCreator for IVFDemuxerCreator {
+ fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
+ Box::new(IVFDemuxer::new(br))
+ }
+ fn get_name(&self) -> &'static str { "ivf" }
+}
+
+#[cfg(test)]
+mod test {
+ use super::*;
+ use std::fs::File;
+
+ #[test]
+ fn test_ivf_demux() {
+ let mut file = File::open("assets/Duck/VP8/vp80-00-comprehensive-001.ivf").unwrap();
+ let mut fr = FileReader::new_read(&mut file);
+ let mut br = ByteReader::new(&mut fr);
+ let mut dmx = IVFDemuxer::new(&mut br);
+ let mut sm = StreamManager::new();
+ let mut si = SeekIndex::new();
+ dmx.open(&mut sm, &mut si).unwrap();
+
+ loop {
+ let pktres = dmx.get_frame(&mut sm);
+ if let Err(e) = pktres {
+ if e == DemuxerError::EOF { break; }
+ panic!("error");
+ }
+ let pkt = pktres.unwrap();
+ println!("Got {}", pkt);
+ }
+ }
+}
projects / nihav.git / commitdiff