fegger
71218b1b1f
Add FFmpeg-based encoder/decoder with SPS/PPS extradata, Annex-B output normalization, low-latency libx264 settings, and a round-trip unit test. Includes review hardening: cached SwsContext, bitrate-only rate control, std::byte/uin8_t cast helpers, and richer test assertions.
41 lines
851 B
C++
41 lines
851 B
C++
#pragma once
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#include "screencast/codec/encoder.h"
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#include "screencast/codec/error.h"
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#include <cstdint>
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#include <memory>
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#include <string>
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#include <vector>
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namespace sc {
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struct DecodedFrame {
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int width = 0;
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int height = 0;
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uint64_t capture_timestamp_ns = 0;
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std::vector<std::byte> rgba_pixels;
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};
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struct DecoderConfig {
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std::string codec_name = "h264";
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int width = 0;
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int height = 0;
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std::vector<std::byte> extradata; // SPS/PPS for H.264
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};
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class Decoder {
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public:
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virtual ~Decoder() = default;
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// Feed one encoded frame. Returns decoded frames when available.
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virtual CodecResult<std::vector<DecodedFrame>> decode(const EncodedFrame& frame) = 0;
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};
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class DecoderFactory {
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public:
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static CodecResult<std::unique_ptr<Decoder>> create(const DecoderConfig& config);
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};
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} // namespace sc
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