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