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.
37 lines
942 B
C++
37 lines
942 B
C++
#pragma once
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#include <string>
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#include <variant>
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namespace sc {
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struct CodecError {
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std::string message;
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};
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// C++20 does not provide std::expected. Use a variant-based result type so
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// fallible codec operations do not rely on exceptions.
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template <typename T> using CodecResult = std::variant<T, CodecError>;
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template <typename T> constexpr bool is_codec_error(const CodecResult<T>& result) noexcept {
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return std::holds_alternative<CodecError>(result);
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}
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template <typename T> T& codec_value(CodecResult<T>& result) {
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return std::get<T>(result);
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}
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template <typename T> const T& codec_value(const CodecResult<T>& result) {
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return std::get<T>(result);
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}
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template <typename T> CodecError& codec_error(CodecResult<T>& result) {
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return std::get<CodecError>(result);
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}
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template <typename T> const CodecError& codec_error(const CodecResult<T>& result) {
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return std::get<CodecError>(result);
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}
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} // namespace sc
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