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c128a19903
Any data that sticks around in a decoder, especially frames that haven't been retrieved, may cause issues for playback. This is especially the case with H.264, since its arbitrary frame ordering to allow reference frames to precede B-frames causes it to hold onto frames, and causes the playback manager to get back a frame at a completely wrong timestamp after seeking.
36 lines
936 B
C++
36 lines
936 B
C++
/*
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* Copyright (c) 2024, Gregory Bertilson <zaggy1024@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibMedia/CodecID.h>
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#include <LibMedia/VideoDecoder.h>
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#include "FFmpegForward.h"
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namespace Media::FFmpeg {
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class FFmpegVideoDecoder final : public VideoDecoder {
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public:
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static DecoderErrorOr<NonnullOwnPtr<FFmpegVideoDecoder>> try_create(CodecID, ReadonlyBytes codec_initialization_data);
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FFmpegVideoDecoder(AVCodecContext* codec_context, AVPacket* packet, AVFrame* frame);
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~FFmpegVideoDecoder();
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DecoderErrorOr<void> receive_sample(Duration timestamp, ReadonlyBytes sample) override;
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DecoderErrorOr<NonnullOwnPtr<VideoFrame>> get_decoded_frame() override;
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void flush() override;
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private:
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DecoderErrorOr<void> decode_single_sample(Duration timestamp, u8* data, int size);
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AVCodecContext* m_codec_context;
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AVPacket* m_packet;
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AVFrame* m_frame;
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};
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}
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