1 // Copyright 2015 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef MEDIA_FILTERS_FFMPEG_H265_TO_ANNEX_B_BITSTREAM_CONVERTER_H_
6 #define MEDIA_FILTERS_FFMPEG_H265_TO_ANNEX_B_BITSTREAM_CONVERTER_H_
10 #include "base/memory/raw_ptr.h"
11 #include "media/base/media_export.h"
12 #include "media/filters/ffmpeg_bitstream_converter.h"
13 #include "media/formats/mp4/hevc.h"
15 // Forward declarations for FFmpeg datatypes used.
16 struct AVCodecParameters;
21 // Bitstream converter that converts H.265 bitstream based FFmpeg packets into
22 // H.265 Annex B bytestream format.
23 class MEDIA_EXPORT FFmpegH265ToAnnexBBitstreamConverter
24 : public FFmpegBitstreamConverter {
26 // The |stream_codec_parameters| will be used during conversion and should be
27 // the AVCodecParameters for the stream sourcing these packets. A reference to
28 // |stream_codec_parameters| is retained, so it must outlive this class.
29 explicit FFmpegH265ToAnnexBBitstreamConverter(
30 AVCodecParameters* stream_codec_parameters);
32 FFmpegH265ToAnnexBBitstreamConverter(
33 const FFmpegH265ToAnnexBBitstreamConverter&) = delete;
34 FFmpegH265ToAnnexBBitstreamConverter& operator=(
35 const FFmpegH265ToAnnexBBitstreamConverter&) = delete;
37 ~FFmpegH265ToAnnexBBitstreamConverter() override;
39 // FFmpegBitstreamConverter implementation.
40 bool ConvertPacket(AVPacket* packet) override;
43 std::unique_ptr<mp4::HEVCDecoderConfigurationRecord> hevc_config_;
45 // Variable to hold a pointer to memory where we can access the global
46 // data from the FFmpeg file format's global headers.
47 raw_ptr<AVCodecParameters> stream_codec_parameters_;
52 #endif // MEDIA_FILTERS_FFMPEG_H265_TO_ANNEX_B_BITSTREAM_CONVERTER_H_