89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef DOM_MEDIA_PLATFORMS_FFMPEG_FFMPEGUTILS_H_
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#define DOM_MEDIA_PLATFORMS_FFMPEG_FFMPEGUTILS_H_
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#include <cstddef>
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#include "nsStringFwd.h"
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#include "FFmpegLibWrapper.h"
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// This must be the last header included
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#include "FFmpegLibs.h"
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namespace mozilla {
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#if LIBAVCODEC_VERSION_MAJOR >= 57
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using FFmpegBitRate = int64_t;
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constexpr size_t FFmpegErrorMaxStringSize = AV_ERROR_MAX_STRING_SIZE;
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#else
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using FFmpegBitRate = int;
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constexpr size_t FFmpegErrorMaxStringSize = 64;
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#endif
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nsCString MakeErrorString(const FFmpegLibWrapper* aLib, int aErrNum);
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template <typename T, typename F>
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void IterateZeroTerminated(const T& aList, F&& aLambda) {
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for (size_t i = 0; aList[i] != 0; i++) {
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aLambda(aList[i]);
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}
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}
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inline bool IsVideoCodec(AVCodecID aCodecID) {
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switch (aCodecID) {
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case AV_CODEC_ID_H264:
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#if LIBAVCODEC_VERSION_MAJOR >= 54
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case AV_CODEC_ID_VP8:
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#endif
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#if LIBAVCODEC_VERSION_MAJOR >= 55
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case AV_CODEC_ID_VP9:
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case AV_CODEC_ID_HEVC:
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#endif
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#if LIBAVCODEC_VERSION_MAJOR >= 59
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case AV_CODEC_ID_AV1:
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#endif
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return true;
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default:
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return false;
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}
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}
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// Access the correct location for the channel count, based on ffmpeg version.
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template <typename T>
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inline int& ChannelCount(T* aObject) {
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#if LIBAVCODEC_VERSION_MAJOR <= 59
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return aObject->channels;
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#else
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return aObject->ch_layout.nb_channels;
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#endif
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}
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// Access the correct location for the duration, based on ffmpeg version.
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template <typename T>
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inline int64_t& Duration(T* aObject) {
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#if LIBAVCODEC_VERSION_MAJOR < 61
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return aObject->pkt_duration;
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#else
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return aObject->duration;
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#endif
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}
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// Access the correct location for the duration, based on ffmpeg version.
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template <typename T>
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inline const int64_t& Duration(const T* aObject) {
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#if LIBAVCODEC_VERSION_MAJOR < 61
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return aObject->pkt_duration;
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#else
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return aObject->duration;
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#endif
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}
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const char* AVCodecToString(const AVCodecID& aCodec);
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} // namespace mozilla
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#endif // DOM_MEDIA_PLATFORMS_FFMPEG_FFMPEGUTILS_H_
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