+pub struct RawStreamCtx<'a> {
+ stream: NAStreamRef,
+ pkt: Box<dyn NAPacketiser + Send>,
+ br: &'a mut ByteReader<'a>,
+ pts: u64,
+ seek: SeekIndex,
+}
+
+impl<'a> RawStreamCtx<'a> {
+ fn new(stream: NAStreamRef, packetiser: Box<dyn NAPacketiser + Send>, br: &'a mut ByteReader<'a>) -> Self {
+ let mut seek = SeekIndex::new();
+ seek.add_stream(0);
+ Self { stream, pkt: packetiser, br, pts: 0, seek }
+ }
+ fn account_for_packet(&mut self, packet: &mut NAPacket) {
+ let pos = self.br.tell() - (self.pkt.bytes_left() as u64);
+ if packet.get_pts().is_none() && packet.get_duration().is_some() {
+ packet.ts.pts = Some(self.pts);
+ }
+ if packet.is_keyframe() {
+ let pts = packet.get_pts().unwrap_or(self.pts);
+ let time = NATimeInfo::ts_to_time(pts, 1000, self.stream.tb_num, self.stream.tb_den);
+ let in_range = if let Some(last) = self.seek.seek_info[0].entries.last() {
+ last.pts >= pts
+ } else {
+ false
+ };
+ if !in_range {
+ self.seek.add_entry(0, SeekEntry { time, pts, pos });
+ }
+ }
+ self.pts += packet.get_duration().unwrap_or(0);
+ }
+ fn get_frame(&mut self) -> DemuxerResult<NAPacket> {
+ let mut buf = [0; 1048576];
+ loop {
+ match self.pkt.get_packet(self.stream.clone()) {
+ Ok(Some(mut packet)) => {
+ self.account_for_packet(&mut packet);
+ return Ok(packet);
+ },
+ Ok(None) => {},
+ Err(DecoderError::ShortData) => {},
+ _ => return Err(DemuxerError::InvalidData),
+ };
+ match self.br.read_buf_some(&mut buf) {
+ Ok(size) => {
+ self.pkt.add_data(&buf[..size]);
+ },
+ Err(_) => {
+ match self.pkt.get_packet(self.stream.clone()) {
+ Ok(Some(mut packet)) => {
+ self.account_for_packet(&mut packet);
+ return Ok(packet);
+ },
+ Ok(None) | Err(DecoderError::ShortData) => return Err(DemuxerError::EOF),
+ _ => return Err(DemuxerError::InvalidData),
+ };
+ },
+ };
+ }
+ }
+}
+