]>
Commit | Line | Data |
---|---|---|
1 | use nihav_core::codecs::*; | |
2 | use nihav_core::muxers::*; | |
3 | use std::marker::PhantomData; | |
4 | ||
5 | #[derive(Default)] | |
6 | struct NullEncoder { | |
7 | stream: Option<NAStreamRef>, | |
8 | pkt: Option<NAPacket>, | |
9 | } | |
10 | ||
11 | impl NullEncoder { | |
12 | fn new() -> Self { Self::default() } | |
13 | } | |
14 | ||
15 | impl NAEncoder for NullEncoder { | |
16 | fn negotiate_format(&self, encinfo: &EncodeParameters) -> EncoderResult<EncodeParameters> { | |
17 | Ok(*encinfo) | |
18 | } | |
19 | fn get_capabilities(&self) -> u64 { 0 } | |
20 | fn init(&mut self, stream_id: u32, encinfo: EncodeParameters) -> EncoderResult<NAStreamRef> { | |
21 | let stype = match encinfo.format { | |
22 | NACodecTypeInfo::Audio(_) => StreamType::Audio, | |
23 | NACodecTypeInfo::Video(_) => StreamType::Video, | |
24 | NACodecTypeInfo::None => StreamType::Data, | |
25 | }; | |
26 | let info = NACodecInfo::new("null", encinfo.format, None); | |
27 | let mut stream = NAStream::new(stype, stream_id, info, encinfo.tb_num, encinfo.tb_den, 0); | |
28 | stream.set_num(stream_id as usize); | |
29 | let stream = stream.into_ref(); | |
30 | self.stream = Some(stream.clone()); | |
31 | ||
32 | Ok(stream) | |
33 | } | |
34 | fn encode(&mut self, frm: &NAFrame) -> EncoderResult<()> { | |
35 | self.pkt = Some(NAPacket::new(self.stream.clone().unwrap(), frm.ts, true, Vec::new())); | |
36 | Ok(()) | |
37 | } | |
38 | fn get_packet(&mut self) -> EncoderResult<Option<NAPacket>> { | |
39 | let mut npkt = None; | |
40 | std::mem::swap(&mut self.pkt, &mut npkt); | |
41 | Ok(npkt) | |
42 | } | |
43 | fn flush(&mut self) -> EncoderResult<()> { | |
44 | Ok(()) | |
45 | } | |
46 | } | |
47 | ||
48 | impl NAOptionHandler for NullEncoder { | |
49 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } | |
50 | fn set_options(&mut self, _options: &[NAOption]) { } | |
51 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } | |
52 | } | |
53 | ||
54 | fn get_encoder() -> Box<dyn NAEncoder + Send> { | |
55 | Box::new(NullEncoder::new()) | |
56 | } | |
57 | ||
58 | pub const NULL_ENCODER: EncoderInfo = EncoderInfo { name: "null", get_encoder }; | |
59 | ||
60 | struct NullMuxer<'a> { | |
61 | bw: PhantomData<&'a mut ByteWriter<'a>>, | |
62 | } | |
63 | ||
64 | impl<'a> NullMuxer<'a> { | |
65 | fn new(_bw: &'a mut ByteWriter<'a>) -> Self { | |
66 | Self { | |
67 | bw: PhantomData::default(), | |
68 | } | |
69 | } | |
70 | } | |
71 | ||
72 | impl<'a> MuxCore<'a> for NullMuxer<'a> { | |
73 | fn create(&mut self, _strmgr: &StreamManager) -> MuxerResult<()> { | |
74 | Ok(()) | |
75 | } | |
76 | fn mux_frame(&mut self, _strmgr: &StreamManager, _pkt: NAPacket) -> MuxerResult<()> { | |
77 | Ok(()) | |
78 | } | |
79 | fn flush(&mut self) -> MuxerResult<()> { | |
80 | Ok(()) | |
81 | } | |
82 | fn end(&mut self) -> MuxerResult<()> { | |
83 | Ok(()) | |
84 | } | |
85 | } | |
86 | ||
87 | impl<'a> NAOptionHandler for NullMuxer<'a> { | |
88 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } | |
89 | fn set_options(&mut self, _options: &[NAOption]) { } | |
90 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } | |
91 | } | |
92 | ||
93 | pub struct NullMuxerCreator {} | |
94 | ||
95 | impl MuxerCreator for NullMuxerCreator { | |
96 | fn new_muxer<'a>(&self, bw: &'a mut ByteWriter<'a>) -> Box<dyn MuxCore<'a> + 'a> { | |
97 | Box::new(NullMuxer::new(bw)) | |
98 | } | |
99 | fn get_name(&self) -> &'static str { "null" } | |
100 | fn get_capabilities(&self) -> MuxerCapabilities { MuxerCapabilities::Universal } | |
101 | } | |
102 | ||
103 | pub const NULL_MUXER: &dyn MuxerCreator = &NullMuxerCreator{}; |