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Bug 1240995: [ffmpeg] Refactor FFmpeg PDM. r=kentuckyfriedtakahe

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This greatly simplify how the external libavcodec and libavutil are linked.
This commit is contained in:
Jean-Yves Avenard 2016-01-20 20:22:43 +11:00
parent 5470d295d0
commit c5e7055a40
20 changed files with 350 additions and 385 deletions
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5
dom/media/platforms/PDMFactory.cpp
View File

@ -58,7 +58,6 @@ bool PDMFactory::sAndroidMCDecoderPreferred = false;
bool PDMFactory::sGMPDecoderEnabled = false;
#ifdef MOZ_FFVPX
bool PDMFactory::sFFVPXDecoderEnabled = false;
using namespace ffvpx;
#endif
#ifdef MOZ_FFMPEG
bool PDMFactory::sFFmpegDecoderEnabled = false;
@ -124,10 +123,10 @@ PDMFactory::Init()
AppleDecoderModule::Init();
#endif
#ifdef MOZ_FFVPX
FFVPXRuntimeLinker::Link();
FFVPXRuntimeLinker::Init();
#endif
#ifdef MOZ_FFMPEG
FFmpegRuntimeLinker::Link();
FFmpegRuntimeLinker::Init();
#endif
GMPDecoderModule::Init();
}

13
dom/media/platforms/ffmpeg/FFmpegAudioDecoder.cpp
View File

@ -6,7 +6,6 @@
#include "mozilla/TaskQueue.h"
#include "FFmpegRuntimeLinker.h"
#include "FFmpegAudioDecoder.h"
#include "TimeUnits.h"
@ -15,10 +14,10 @@
namespace mozilla
{
FFmpegAudioDecoder<LIBAV_VER>::FFmpegAudioDecoder(
FFmpegAudioDecoder<LIBAV_VER>::FFmpegAudioDecoder(FFmpegLibWrapper* aLib,
FlushableTaskQueue* aTaskQueue, MediaDataDecoderCallback* aCallback,
const AudioInfo& aConfig)
: FFmpegDataDecoder(aTaskQueue, aCallback, GetCodecId(aConfig.mMimeType))
: FFmpegDataDecoder(aLib, aTaskQueue, aCallback, GetCodecId(aConfig.mMimeType))
{
MOZ_COUNT_CTOR(FFmpegAudioDecoder);
// Use a new MediaByteBuffer as the object will be modified during initialization.
@ -44,11 +43,9 @@ FFmpegAudioDecoder<LIBAV_VER>::InitCodecContext()
// isn't implemented.
mCodecContext->thread_count = 1;
// FFmpeg takes this as a suggestion for what format to use for audio samples.
uint32_t major, minor, micro;
FFmpegRuntimeLinker::GetVersion(major, minor, micro);
// LibAV 0.8 produces rubbish float interleaved samples, request 16 bits audio.
mCodecContext->request_sample_fmt =
(major == 53) ? AV_SAMPLE_FMT_S16 : AV_SAMPLE_FMT_FLT;
(mLib->mVersion == 53) ? AV_SAMPLE_FMT_S16 : AV_SAMPLE_FMT_FLT;
}
static UniquePtr<AudioDataValue[]>
@ -101,7 +98,7 @@ FFmpegAudioDecoder<LIBAV_VER>::DecodePacket(MediaRawData* aSample)
{
MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
AVPacket packet;
AV_CALL(av_init_packet(&packet));
mLib->av_init_packet(&packet);
packet.data = const_cast<uint8_t*>(aSample->Data());
packet.size = aSample->Size();
@ -118,7 +115,7 @@ FFmpegAudioDecoder<LIBAV_VER>::DecodePacket(MediaRawData* aSample)
while (packet.size > 0) {
int decoded;
int bytesConsumed =
AV_CALL(avcodec_decode_audio4(mCodecContext, mFrame, &decoded, &packet));
mLib->avcodec_decode_audio4(mCodecContext, mFrame, &decoded, &packet);
if (bytesConsumed < 0) {
NS_WARNING("FFmpeg audio decoder error.");

3
dom/media/platforms/ffmpeg/FFmpegAudioDecoder.h
View File

@ -7,6 +7,7 @@
#ifndef __FFmpegAACDecoder_h__
#define __FFmpegAACDecoder_h__
#include "FFmpegLibWrapper.h"
#include "FFmpegDataDecoder.h"
namespace mozilla
@ -20,7 +21,7 @@ template <>
class FFmpegAudioDecoder<LIBAV_VER> : public FFmpegDataDecoder<LIBAV_VER>
{
public:
FFmpegAudioDecoder(FlushableTaskQueue* aTaskQueue,
FFmpegAudioDecoder(FFmpegLibWrapper* aLib, FlushableTaskQueue* aTaskQueue,
MediaDataDecoderCallback* aCallback,
const AudioInfo& aConfig);
virtual ~FFmpegAudioDecoder();

59
dom/media/platforms/ffmpeg/FFmpegDataDecoder.cpp
View File

@ -18,13 +18,14 @@
namespace mozilla
{
bool FFmpegDataDecoder<LIBAV_VER>::sFFmpegInitDone = false;
StaticMutex FFmpegDataDecoder<LIBAV_VER>::sMonitor;
FFmpegDataDecoder<LIBAV_VER>::FFmpegDataDecoder(FlushableTaskQueue* aTaskQueue,
MediaDataDecoderCallback* aCallback,
AVCodecID aCodecID)
: mTaskQueue(aTaskQueue)
FFmpegDataDecoder<LIBAV_VER>::FFmpegDataDecoder(FFmpegLibWrapper* aLib,
FlushableTaskQueue* aTaskQueue,
MediaDataDecoderCallback* aCallback,
AVCodecID aCodecID)
: mLib(aLib)
, mTaskQueue(aTaskQueue)
, mCallback(aCallback)
, mCodecContext(nullptr)
, mFrame(NULL)
@ -33,6 +34,7 @@ FFmpegDataDecoder<LIBAV_VER>::FFmpegDataDecoder(FlushableTaskQueue* aTaskQueue,
, mMonitor("FFMpegaDataDecoder")
, mIsFlushing(false)
{
MOZ_ASSERT(aLib);
MOZ_COUNT_CTOR(FFmpegDataDecoder);
}
@ -46,7 +48,7 @@ FFmpegDataDecoder<LIBAV_VER>::InitDecoder()
{
FFMPEG_LOG("Initialising FFmpeg decoder.");
AVCodec* codec = FindAVCodec(mCodecID);
AVCodec* codec = FindAVCodec(mLib, mCodecID);
if (!codec) {
NS_WARNING("Couldn't find ffmpeg decoder");
return NS_ERROR_FAILURE;
@ -54,7 +56,7 @@ FFmpegDataDecoder<LIBAV_VER>::InitDecoder()
StaticMutexAutoLock mon(sMonitor);
if (!(mCodecContext = AV_CALL(avcodec_alloc_context3(codec)))) {
if (!(mCodecContext = mLib->avcodec_alloc_context3(codec))) {
NS_WARNING("Couldn't init ffmpeg context");
return NS_ERROR_FAILURE;
}
@ -77,10 +79,10 @@ FFmpegDataDecoder<LIBAV_VER>::InitDecoder()
mCodecContext->flags |= CODEC_FLAG_EMU_EDGE;
}
if (AV_CALL(avcodec_open2(mCodecContext, codec, nullptr)) < 0) {
if (mLib->avcodec_open2(mCodecContext, codec, nullptr) < 0) {
NS_WARNING("Couldn't initialise ffmpeg decoder");
AV_CALL(avcodec_close(mCodecContext));
AV_CALL(av_freep(&mCodecContext));
mLib->avcodec_close(mCodecContext);
mLib->av_freep(&mCodecContext);
return NS_ERROR_FAILURE;
}
@ -141,7 +143,7 @@ FFmpegDataDecoder<LIBAV_VER>::ProcessFlush()
{
MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
if (mCodecContext) {
AV_CALL(avcodec_flush_buffers(mCodecContext));
mLib->avcodec_flush_buffers(mCodecContext);
}
MonitorAutoLock mon(mMonitor);
mIsFlushing = false;
@ -153,13 +155,13 @@ FFmpegDataDecoder<LIBAV_VER>::ProcessShutdown()
{
StaticMutexAutoLock mon(sMonitor);
if (sFFmpegInitDone && mCodecContext) {
AV_CALL(avcodec_close(mCodecContext));
AV_CALL(av_freep(&mCodecContext));
if (mCodecContext) {
mLib->avcodec_close(mCodecContext);
mLib->av_freep(&mCodecContext);
#if LIBAVCODEC_VERSION_MAJOR >= 55
AV_CALL(av_frame_free(&mFrame));
mLib->av_frame_free(&mFrame);
#elif LIBAVCODEC_VERSION_MAJOR == 54
AV_CALL(avcodec_free_frame(&mFrame));
mLib->avcodec_free_frame(&mFrame);
#else
delete mFrame;
mFrame = nullptr;
@ -173,36 +175,29 @@ FFmpegDataDecoder<LIBAV_VER>::PrepareFrame()
MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
#if LIBAVCODEC_VERSION_MAJOR >= 55
if (mFrame) {
AV_CALL(av_frame_unref(mFrame));
mLib->av_frame_unref(mFrame);
} else {
mFrame = AV_CALL(av_frame_alloc());
mFrame = mLib->av_frame_alloc();
}
#elif LIBAVCODEC_VERSION_MAJOR == 54
if (mFrame) {
AV_CALL(avcodec_get_frame_defaults(mFrame));
mLib->avcodec_get_frame_defaults(mFrame);
} else {
mFrame = AV_CALL(avcodec_alloc_frame());
mFrame = mLib->avcodec_alloc_frame();
}
#else
delete mFrame;
mFrame = new AVFrame;
AV_CALL(avcodec_get_frame_defaults(mFrame));
mLib->avcodec_get_frame_defaults(mFrame);
#endif
return mFrame;
}
/* static */ AVCodec*
FFmpegDataDecoder<LIBAV_VER>::FindAVCodec(AVCodecID aCodec)
FFmpegDataDecoder<LIBAV_VER>::FindAVCodec(FFmpegLibWrapper* aLib,
AVCodecID aCodec)
{
StaticMutexAutoLock mon(sMonitor);
if (!sFFmpegInitDone) {
AV_CALL(avcodec_register_all());
#ifdef DEBUG
AV_CALL(av_log_set_level(AV_LOG_DEBUG));
#endif
sFFmpegInitDone = true;
}
return AV_CALL(avcodec_find_decoder(aCodec));
return aLib->avcodec_find_decoder(aCodec);
}
} // namespace mozilla

10
dom/media/platforms/ffmpeg/FFmpegDataDecoder.h
View File

@ -8,9 +8,9 @@
#define __FFmpegDataDecoder_h__
#include "PlatformDecoderModule.h"
#include "FFmpegLibs.h"
#include "FFmpegRuntimeLinker.h"
#include "FFmpegLibWrapper.h"
#include "mozilla/StaticMutex.h"
#include "FFmpegLibs.h"
namespace mozilla
{
@ -24,7 +24,7 @@ template <>
class FFmpegDataDecoder<LIBAV_VER> : public MediaDataDecoder
{
public:
FFmpegDataDecoder(FlushableTaskQueue* aTaskQueue,
FFmpegDataDecoder(FFmpegLibWrapper* aLib, FlushableTaskQueue* aTaskQueue,
MediaDataDecoderCallback* aCallback,
AVCodecID aCodecID);
virtual ~FFmpegDataDecoder();
@ -37,7 +37,7 @@ public:
nsresult Drain() override;
nsresult Shutdown() override;
static AVCodec* FindAVCodec(AVCodecID aCodec);
static AVCodec* FindAVCodec(FFmpegLibWrapper* aLib, AVCodecID aCodec);
protected:
// Flush and Drain operation, always run
@ -48,6 +48,7 @@ protected:
AVFrame* PrepareFrame();
nsresult InitDecoder();
FFmpegLibWrapper* mLib;
RefPtr<FlushableTaskQueue> mTaskQueue;
MediaDataDecoderCallback* mCallback;
@ -65,7 +66,6 @@ protected:
Atomic<bool> mIsFlushing;
private:
static bool sFFmpegInitDone;
static StaticMutex sMonitor;
};

15
dom/media/platforms/ffmpeg/FFmpegDecoderModule.h
View File

@ -8,6 +8,7 @@
#define __FFmpegDecoderModule_h__
#include "PlatformDecoderModule.h"
#include "FFmpegLibWrapper.h"
#include "FFmpegAudioDecoder.h"
#include "FFmpegVideoDecoder.h"
@ -19,14 +20,14 @@ class FFmpegDecoderModule : public PlatformDecoderModule
{
public:
static already_AddRefed<PlatformDecoderModule>
Create()
Create(FFmpegLibWrapper* aLib)
{
RefPtr<PlatformDecoderModule> pdm = new FFmpegDecoderModule();
RefPtr<PlatformDecoderModule> pdm = new FFmpegDecoderModule(aLib);
return pdm.forget();
}
FFmpegDecoderModule() {}
explicit FFmpegDecoderModule(FFmpegLibWrapper* aLib) : mLib(aLib) {}
virtual ~FFmpegDecoderModule() {}
already_AddRefed<MediaDataDecoder>
@ -37,7 +38,7 @@ public:
MediaDataDecoderCallback* aCallback) override
{
RefPtr<MediaDataDecoder> decoder =
new FFmpegVideoDecoder<V>(aVideoTaskQueue, aCallback, aConfig,
new FFmpegVideoDecoder<V>(mLib, aVideoTaskQueue, aCallback, aConfig,
aImageContainer);
return decoder.forget();
}
@ -51,7 +52,7 @@ public:
return nullptr;
#else
RefPtr<MediaDataDecoder> decoder =
new FFmpegAudioDecoder<V>(aAudioTaskQueue, aCallback, aConfig);
new FFmpegAudioDecoder<V>(mLib, aAudioTaskQueue, aCallback, aConfig);
return decoder.forget();
#endif
}
@ -68,7 +69,7 @@ public:
return false;
}
AVCodecID codec = audioCodec != AV_CODEC_ID_NONE ? audioCodec : videoCodec;
return !!FFmpegDataDecoder<V>::FindAVCodec(codec);
return !!FFmpegDataDecoder<V>::FindAVCodec(mLib, codec);
}
ConversionRequired
@ -83,6 +84,8 @@ public:
}
}
private:
FFmpegLibWrapper* mLib;
};
} // namespace mozilla

39
dom/media/platforms/ffmpeg/FFmpegFunctionList.h
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@ -1,39 +0,0 @@
/* 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/. */
/* libavcodec */
AV_FUNC(avcodec_alloc_context3, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_close, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_decode_audio4, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_decode_video2, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_find_decoder, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_flush_buffers, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_open2, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_register_all, AV_FUNC_AVCODEC_ALL)
AV_FUNC(av_init_packet, AV_FUNC_AVCODEC_ALL)
AV_FUNC(av_parser_init, AV_FUNC_AVCODEC_ALL)
AV_FUNC(av_parser_close, AV_FUNC_AVCODEC_ALL)
AV_FUNC(av_parser_parse2, AV_FUNC_AVCODEC_ALL)
#if LIBAVCODEC_VERSION_MAJOR <= 54 || defined(LIBAVCODEC_ALLVERSION)
AV_FUNC(avcodec_get_frame_defaults, (AV_FUNC_53 | AV_FUNC_54))
#endif
/* libavutil */
AV_FUNC(av_log_set_level, AV_FUNC_AVUTIL_ALL)
AV_FUNC(av_malloc, AV_FUNC_AVUTIL_ALL)
AV_FUNC(av_freep, AV_FUNC_AVUTIL_ALL)
#if defined(LIBAVCODEC_VERSION_MAJOR) || defined(LIBAVCODEC_ALLVERSION)
#if LIBAVCODEC_VERSION_MAJOR == 54 || defined(LIBAVCODEC_ALLVERSION)
/* libavutil v54 only */
AV_FUNC(avcodec_alloc_frame, AV_FUNC_AVUTIL_54)
AV_FUNC(avcodec_free_frame, AV_FUNC_AVUTIL_54)
#endif
#if LIBAVCODEC_VERSION_MAJOR >= 55 || defined(LIBAVCODEC_ALLVERSION)
/* libavutil v55 and later only */
AV_FUNC(av_frame_alloc, (AV_FUNC_AVUTIL_55 | AV_FUNC_AVUTIL_56 | AV_FUNC_AVUTIL_57))
AV_FUNC(av_frame_free, (AV_FUNC_AVUTIL_55 | AV_FUNC_AVUTIL_56 | AV_FUNC_AVUTIL_57))
AV_FUNC(av_frame_unref, (AV_FUNC_AVUTIL_55 | AV_FUNC_AVUTIL_56 | AV_FUNC_AVUTIL_57))
#endif
#endif

142
dom/media/platforms/ffmpeg/FFmpegLibWrapper.cpp Normal file
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@ -0,0 +1,142 @@
/* 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/. */
#include "FFmpegLibWrapper.h"
#include "FFmpegLog.h"
#include "mozilla/PodOperations.h"
#include "mozilla/Types.h"
#include "prlink.h"
#define AV_LOG_DEBUG 48
namespace mozilla
{
FFmpegLibWrapper::FFmpegLibWrapper()
{
PodZero(this);
}
FFmpegLibWrapper::~FFmpegLibWrapper()
{
Unlink();
}
bool
FFmpegLibWrapper::Link()
{
if (!mAVCodecLib || !mAVUtilLib) {
Unlink();
return false;
}
avcodec_version =
(decltype(avcodec_version))PR_FindSymbol(mAVCodecLib, "avcodec_version");
if (!avcodec_version) {
Unlink();
return false;
}
uint32_t version = avcodec_version();
mVersion = (version >> 16) & 0xff;
uint32_t micro = version & 0xff;
if (mVersion == 57 && micro != 100) {
// a micro version of 100 indicates that it's FFmpeg (as opposed to LibAV).
// Due to current AVCodecContext binary incompatibility we can only
// support FFmpeg 57 at this stage.
Unlink();
return false;
}
enum {
AV_FUNC_AVUTIL_MASK = 1 << 8,
AV_FUNC_53 = 1 << 0,
AV_FUNC_54 = 1 << 1,
AV_FUNC_55 = 1 << 2,
AV_FUNC_56 = 1 << 3,
AV_FUNC_57 = 1 << 4,
AV_FUNC_AVUTIL_53 = AV_FUNC_53 | AV_FUNC_AVUTIL_MASK,
AV_FUNC_AVUTIL_54 = AV_FUNC_54 | AV_FUNC_AVUTIL_MASK,
AV_FUNC_AVUTIL_55 = AV_FUNC_55 | AV_FUNC_AVUTIL_MASK,
AV_FUNC_AVUTIL_56 = AV_FUNC_56 | AV_FUNC_AVUTIL_MASK,
AV_FUNC_AVUTIL_57 = AV_FUNC_57 | AV_FUNC_AVUTIL_MASK,
AV_FUNC_AVCODEC_ALL = AV_FUNC_53 | AV_FUNC_54 | AV_FUNC_55 | AV_FUNC_56 | AV_FUNC_57,
AV_FUNC_AVUTIL_ALL = AV_FUNC_AVCODEC_ALL | AV_FUNC_AVUTIL_MASK
};
switch (mVersion) {
case 53:
version = AV_FUNC_53;
break;
case 54:
version = AV_FUNC_54;
break;
case 55:
version = AV_FUNC_55;
break;
case 56:
version = AV_FUNC_56;
break;
case 57:
version = AV_FUNC_57;
break;
default:
FFMPEG_LOG("Unknown avcodec version");
Unlink();
return false;
}
#define AV_FUNC(func, ver) \
if ((ver) & version) { \
if (!(func = (decltype(func))PR_FindSymbol(((ver) & AV_FUNC_AVUTIL_MASK) ? mAVUtilLib : mAVCodecLib, #func))) { \
FFMPEG_LOG("Couldn't load function " # func); \
Unlink(); \
return false; \
} \
} else { \
func = (decltype(func))nullptr; \
}
AV_FUNC(avcodec_alloc_context3, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_close, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_decode_audio4, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_decode_video2, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_find_decoder, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_flush_buffers, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_open2, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_register_all, AV_FUNC_AVCODEC_ALL)
AV_FUNC(av_init_packet, AV_FUNC_AVCODEC_ALL)
AV_FUNC(av_parser_init, AV_FUNC_AVCODEC_ALL)
AV_FUNC(av_parser_close, AV_FUNC_AVCODEC_ALL)
AV_FUNC(av_parser_parse2, AV_FUNC_AVCODEC_ALL)
AV_FUNC(avcodec_get_frame_defaults, (AV_FUNC_53 | AV_FUNC_54))
AV_FUNC(av_log_set_level, AV_FUNC_AVUTIL_ALL)
AV_FUNC(av_malloc, AV_FUNC_AVUTIL_ALL)
AV_FUNC(av_freep, AV_FUNC_AVUTIL_ALL)
AV_FUNC(avcodec_alloc_frame, AV_FUNC_AVUTIL_54)
AV_FUNC(avcodec_free_frame, AV_FUNC_AVUTIL_54)
AV_FUNC(av_frame_alloc, (AV_FUNC_AVUTIL_55 | AV_FUNC_AVUTIL_56 | AV_FUNC_AVUTIL_57))
AV_FUNC(av_frame_free, (AV_FUNC_AVUTIL_55 | AV_FUNC_AVUTIL_56 | AV_FUNC_AVUTIL_57))
AV_FUNC(av_frame_unref, (AV_FUNC_AVUTIL_55 | AV_FUNC_AVUTIL_56 | AV_FUNC_AVUTIL_57))
#undef AV_FUNC
avcodec_register_all();
#ifdef DEBUG
av_log_set_level(AV_LOG_DEBUG);
#endif
return true;
}
void
FFmpegLibWrapper::Unlink()
{
if (mAVUtilLib && mAVUtilLib != mAVCodecLib) {
PR_UnloadLibrary(mAVUtilLib);
}
if (mAVCodecLib) {
PR_UnloadLibrary(mAVCodecLib);
}
PodZero(this);
}
} // namespace mozilla

78
dom/media/platforms/ffmpeg/FFmpegLibWrapper.h Normal file
View File

@ -0,0 +1,78 @@
/* 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 __FFmpegLibWrapper_h__
#define __FFmpegLibWrapper_h__
#include "mozilla/Types.h"
struct AVCodec;
struct AVCodecContext;
struct AVFrame;
struct AVPacket;
struct AVDictionary;
struct AVCodecParserContext;
struct PRLibrary;
namespace mozilla
{
struct FFmpegLibWrapper
{
FFmpegLibWrapper();
~FFmpegLibWrapper();
// Attempt to resolve all symbols. Return true of successful.
// Upon failure, the entire object will be reset and any attached libraries
// will be unlinked.
bool Link();
// Reset the wrapper and unlink all attached libraries.
void Unlink();
// indicate the version of libavcodec linked to.
// 0 indicates that the function wasn't initialized with Link().
int mVersion;
// libavcodec
unsigned (*avcodec_version)();
AVCodecContext* (*avcodec_alloc_context3)(const AVCodec* codec);
int (*avcodec_close)(AVCodecContext* avctx);
int (*avcodec_decode_audio4)(AVCodecContext* avctx, AVFrame* frame, int* got_frame_ptr, const AVPacket* avpkt);
int (*avcodec_decode_video2)(AVCodecContext* avctx, AVFrame* picture, int* got_picture_ptr, const AVPacket* avpkt);
AVCodec* (*avcodec_find_decoder)(int id);
void (*avcodec_flush_buffers)(AVCodecContext *avctx);
int (*avcodec_open2)(AVCodecContext *avctx, const AVCodec* codec, AVDictionary** options);
void (*avcodec_register_all)();
void (*av_init_packet)(AVPacket* pkt);
AVCodecParserContext* (*av_parser_init)(int codec_id);
void (*av_parser_close)(AVCodecParserContext* s);
int (*av_parser_parse2)(AVCodecParserContext* s, AVCodecContext* avctx, uint8_t** poutbuf, int* poutbuf_size, const uint8_t* buf, int buf_size, int64_t pts, int64_t dts, int64_t pos);
// only used in libavcodec <= 54
void (*avcodec_get_frame_defaults)(AVFrame* pic);
// libavutil
void (*av_log_set_level)(int level);
void* (*av_malloc)(size_t size);
void (*av_freep)(void *ptr);
// libavutil v54 only
AVFrame* (*avcodec_alloc_frame)();
void (*avcodec_free_frame)(AVFrame** frame);
// libavutil v55 and later only
AVFrame* (*av_frame_alloc)();
void (*av_frame_free)(AVFrame** frame);
void (*av_frame_unref)(AVFrame* frame);
PRLibrary* mAVCodecLib;
PRLibrary* mAVUtilLib;
private:
};
} // namespace mozilla
#endif // FFmpegLibWrapper

21
dom/media/platforms/ffmpeg/FFmpegLibs.h
View File

@ -7,8 +7,6 @@
#ifndef __FFmpegLibs_h__
#define __FFmpegLibs_h__
#include "mozilla/Types.h"
extern "C" {
#ifdef __GNUC__
#pragma GCC visibility push(default)
@ -37,23 +35,4 @@ enum { LIBAV_VER = FFVPX_VERSION };
enum { LIBAV_VER = LIBAVCODEC_VERSION_MAJOR };
#endif
namespace mozilla {
#ifdef USING_MOZFFVPX
namespace ffvpx {
#endif
#define AV_FUNC(func, ver) extern decltype(func)* func;
#include "FFmpegFunctionList.h"
#undef AV_FUNC
#ifdef USING_MOZFFVPX
} // namespace ffvpx
#define AV_CALL(func) mozilla::ffvpx::func
#else
#define AV_CALL(func) mozilla::func
#endif
}
#endif // __FFmpegLibs_h__

2
dom/media/platforms/ffmpeg/FFmpegLog.h
View File

@ -7,6 +7,8 @@
#ifndef __FFmpegLog_h__
#define __FFmpegLog_h__
#include "mozilla/Logging.h"
extern mozilla::LogModule* GetPDMLog();
#define FFMPEG_LOG(...) MOZ_LOG(GetPDMLog(), mozilla::LogLevel::Debug, (__VA_ARGS__))

142
dom/media/platforms/ffmpeg/FFmpegRuntimeLinker.cpp
View File

@ -5,9 +5,9 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "FFmpegRuntimeLinker.h"
#include "FFmpegLibWrapper.h"
#include "mozilla/ArrayUtils.h"
#include "FFmpegLog.h"
#include "mozilla/Types.h"
#include "prlink.h"
namespace mozilla
@ -19,9 +19,11 @@ FFmpegRuntimeLinker::LinkStatus FFmpegRuntimeLinker::sLinkStatus =
template <int V> class FFmpegDecoderModule
{
public:
static already_AddRefed<PlatformDecoderModule> Create();
static already_AddRefed<PlatformDecoderModule> Create(FFmpegLibWrapper*);
};
static FFmpegLibWrapper sLibAV;
static const char* sLibs[] = {
#if defined(XP_DARWIN)
"libavcodec.57.dylib",
@ -40,30 +42,8 @@ static const char* sLibs[] = {
#endif
};
PRLibrary* FFmpegRuntimeLinker::sLinkedLib = nullptr;
PRLibrary* FFmpegRuntimeLinker::sLinkedUtilLib = nullptr;
static unsigned (*avcodec_version)() = nullptr;
#ifdef __GNUC__
#define AV_FUNC(func, ver) void (*func)();
#define LIBAVCODEC_ALLVERSION
#else
#define AV_FUNC(func, ver) decltype(func)* func;
#endif
#include "FFmpegFunctionList.h"
#undef AV_FUNC
static PRLibrary*
MozAVLink(const char* aName)
{
PRLibSpec lspec;
lspec.type = PR_LibSpec_Pathname;
lspec.value.pathname = aName;
return PR_LoadLibraryWithFlags(lspec, PR_LD_NOW | PR_LD_LOCAL);
}
/* static */ bool
FFmpegRuntimeLinker::Link()
FFmpegRuntimeLinker::Init()
{
if (sLinkStatus) {
return sLinkStatus == LinkStatus_SUCCEEDED;
@ -72,15 +52,16 @@ FFmpegRuntimeLinker::Link()
for (size_t i = 0; i < ArrayLength(sLibs); i++) {
const char* lib = sLibs[i];
sLinkedLib = MozAVLink(lib);
if (sLinkedLib) {
sLinkedUtilLib = sLinkedLib;
if (Bind(lib)) {
PRLibSpec lspec;
lspec.type = PR_LibSpec_Pathname;
lspec.value.pathname = lib;
sLibAV.mAVCodecLib = PR_LoadLibraryWithFlags(lspec, PR_LD_NOW | PR_LD_LOCAL);
if (sLibAV.mAVCodecLib) {
sLibAV.mAVUtilLib = sLibAV.mAVCodecLib;
if (sLibAV.Link()) {
sLinkStatus = LinkStatus_SUCCEEDED;
return true;
}
// Shouldn't happen but if it does then we try the next lib..
Unlink();
}
}
@ -90,113 +71,26 @@ FFmpegRuntimeLinker::Link()
}
FFMPEG_LOG(" ]\n");
Unlink();
sLinkStatus = LinkStatus_FAILED;
return false;
}
/* static */ bool
FFmpegRuntimeLinker::Bind(const char* aLibName)
{
avcodec_version = (decltype(avcodec_version))PR_FindSymbol(sLinkedLib,
"avcodec_version");
uint32_t major, minor, micro;
if (!GetVersion(major, minor, micro)) {
return false;
}
int version;
switch (major) {
case 53:
version = AV_FUNC_53;
break;
case 54:
version = AV_FUNC_54;
break;
case 56:
// We use libavcodec 55 code instead. Fallback
case 55:
version = AV_FUNC_55;
break;
case 57:
if (micro != 100) {
// a micro version of 100 indicates that it's FFmpeg (as opposed to LibAV.
// Due to current AVCodecContext binary incompatibility we can only
// support FFmpeg at this stage.
return false;
}
version = AV_FUNC_57;
break;
default:
// Not supported at this stage.
return false;
}
#define AV_FUNC(func, ver) \
if ((ver) & version) { \
if (!(func = (decltype(func))PR_FindSymbol(((ver) & AV_FUNC_AVUTIL_MASK) ? sLinkedUtilLib : sLinkedLib, #func))) { \
FFMPEG_LOG("Couldn't load function " #func " from %s.", aLibName); \
return false; \
} \
} else { \
func = (decltype(func))nullptr; \
}
#include "FFmpegFunctionList.h"
#undef AV_FUNC
return true;
}
/* static */ already_AddRefed<PlatformDecoderModule>
FFmpegRuntimeLinker::CreateDecoderModule()
{
if (!Link()) {
if (!Init()) {
return nullptr;
}
uint32_t major, minor, micro;
if (!GetVersion(major, minor, micro)) {
return nullptr;
}
RefPtr<PlatformDecoderModule> module;
switch (major) {
case 53: module = FFmpegDecoderModule<53>::Create(); break;
case 54: module = FFmpegDecoderModule<54>::Create(); break;
switch (sLibAV.mVersion) {
case 53: module = FFmpegDecoderModule<53>::Create(&sLibAV); break;
case 54: module = FFmpegDecoderModule<54>::Create(&sLibAV); break;
case 55:
case 56: module = FFmpegDecoderModule<55>::Create(); break;
case 57: module = FFmpegDecoderModule<57>::Create(); break;
case 56: module = FFmpegDecoderModule<55>::Create(&sLibAV); break;
case 57: module = FFmpegDecoderModule<57>::Create(&sLibAV); break;
default: module = nullptr;
}
return module.forget();
}
/* static */ void
FFmpegRuntimeLinker::Unlink()
{
if (sLinkedUtilLib && sLinkedUtilLib != sLinkedLib) {
PR_UnloadLibrary(sLinkedUtilLib);
}
if (sLinkedLib) {
PR_UnloadLibrary(sLinkedLib);
sLinkedLib = nullptr;
sLinkStatus = LinkStatus_INIT;
avcodec_version = nullptr;
}
sLinkedUtilLib = nullptr;
}
/* static */ bool
FFmpegRuntimeLinker::GetVersion(uint32_t& aMajor, uint32_t& aMinor, uint32_t& aMicro)
{
if (!avcodec_version) {
return false;
}
uint32_t version = avcodec_version();
aMajor = (version >> 16) & 0xff;
aMinor = (version >> 8) & 0xff;
aMicro = version & 0xff;
return true;
}
#undef LIBAVCODEC_ALLVERSION
} // namespace mozilla

28
dom/media/platforms/ffmpeg/FFmpegRuntimeLinker.h
View File

@ -8,43 +8,17 @@
#define __FFmpegRuntimeLinker_h__
#include "PlatformDecoderModule.h"
#include <stdint.h>
struct PRLibrary;
namespace mozilla
{
enum {
AV_FUNC_AVUTIL_MASK = 1 << 8,
AV_FUNC_53 = 1 << 0,
AV_FUNC_54 = 1 << 1,
AV_FUNC_55 = 1 << 2,
AV_FUNC_56 = 1 << 3,
AV_FUNC_57 = 1 << 4,
AV_FUNC_AVUTIL_53 = AV_FUNC_53 | AV_FUNC_AVUTIL_MASK,
AV_FUNC_AVUTIL_54 = AV_FUNC_54 | AV_FUNC_AVUTIL_MASK,
AV_FUNC_AVUTIL_55 = AV_FUNC_55 | AV_FUNC_AVUTIL_MASK,
AV_FUNC_AVUTIL_56 = AV_FUNC_56 | AV_FUNC_AVUTIL_MASK,
AV_FUNC_AVUTIL_57 = AV_FUNC_57 | AV_FUNC_AVUTIL_MASK,
AV_FUNC_AVCODEC_ALL = AV_FUNC_53 | AV_FUNC_54 | AV_FUNC_55 | AV_FUNC_56 | AV_FUNC_57,
AV_FUNC_AVUTIL_ALL = AV_FUNC_AVCODEC_ALL | AV_FUNC_AVUTIL_MASK
};
class FFmpegRuntimeLinker
{
public:
static bool Link();
static void Unlink();
static bool Init();
static already_AddRefed<PlatformDecoderModule> CreateDecoderModule();
static bool GetVersion(uint32_t& aMajor, uint32_t& aMinor, uint32_t& aMicro);
private:
static PRLibrary* sLinkedLib;
static PRLibrary* sLinkedUtilLib;
static bool Bind(const char* aLibName);
static enum LinkStatus {
LinkStatus_INIT = 0,
LinkStatus_FAILED,

20
dom/media/platforms/ffmpeg/FFmpegVideoDecoder.cpp
View File

@ -98,11 +98,11 @@ FFmpegVideoDecoder<LIBAV_VER>::PtsCorrectionContext::Reset()
mLastDts = INT64_MIN;
}
FFmpegVideoDecoder<LIBAV_VER>::FFmpegVideoDecoder(
FFmpegVideoDecoder<LIBAV_VER>::FFmpegVideoDecoder(FFmpegLibWrapper* aLib,
FlushableTaskQueue* aTaskQueue, MediaDataDecoderCallback* aCallback,
const VideoInfo& aConfig,
ImageContainer* aImageContainer)
: FFmpegDataDecoder(aTaskQueue, aCallback, GetCodecId(aConfig.mMimeType))
: FFmpegDataDecoder(aLib, aTaskQueue, aCallback, GetCodecId(aConfig.mMimeType))
, mImageContainer(aImageContainer)
, mDisplay(aConfig.mDisplay)
, mImage(aConfig.mImage)
@ -151,7 +151,7 @@ FFmpegVideoDecoder<LIBAV_VER>::InitCodecContext()
// FFmpeg will call back to this to negotiate a video pixel format.
mCodecContext->get_format = ChoosePixelFormat;
mCodecParser = AV_CALL(av_parser_init(mCodecID));
mCodecParser = mLib->av_parser_init(mCodecID);
if (mCodecParser) {
mCodecParser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
}
@ -175,10 +175,10 @@ FFmpegVideoDecoder<LIBAV_VER>::DoDecodeFrame(MediaRawData* aSample)
while (inputSize) {
uint8_t* data;
int size;
int len = AV_CALL(av_parser_parse2(mCodecParser, mCodecContext, &data, &size,
inputData, inputSize,
aSample->mTime, aSample->mTimecode,
aSample->mOffset));
int len = mLib->av_parser_parse2(mCodecParser, mCodecContext, &data, &size,
inputData, inputSize,
aSample->mTime, aSample->mTimecode,
aSample->mOffset);
if (size_t(len) > inputSize) {
mCallback->Error();
return DecodeResult::DECODE_ERROR;
@ -210,7 +210,7 @@ FFmpegVideoDecoder<LIBAV_VER>::DoDecodeFrame(MediaRawData* aSample,
MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
AVPacket packet;
AV_CALL(av_init_packet(&packet));
mLib->av_init_packet(&packet);
packet.data = aData;
packet.size = aSize;
@ -237,7 +237,7 @@ FFmpegVideoDecoder<LIBAV_VER>::DoDecodeFrame(MediaRawData* aSample,
int decoded;
int bytesConsumed =
AV_CALL(avcodec_decode_video2(mCodecContext, mFrame, &decoded, &packet));
mLib->avcodec_decode_video2(mCodecContext, mFrame, &decoded, &packet);
FFMPEG_LOG("DoDecodeFrame:decode_video: rv=%d decoded=%d "
"(Input: pts(%lld) dts(%lld) Output: pts(%lld) "
@ -361,7 +361,7 @@ FFmpegVideoDecoder<LIBAV_VER>::~FFmpegVideoDecoder()
{
MOZ_COUNT_DTOR(FFmpegVideoDecoder);
if (mCodecParser) {
AV_CALL(av_parser_close(mCodecParser));
mLib->av_parser_close(mCodecParser);
mCodecParser = nullptr;
}
}

9
dom/media/platforms/ffmpeg/FFmpegVideoDecoder.h
View File

@ -7,6 +7,7 @@
#ifndef __FFmpegVideoDecoder_h__
#define __FFmpegVideoDecoder_h__
#include "FFmpegLibWrapper.h"
#include "FFmpegDataDecoder.h"
#include "mozilla/Pair.h"
#include "nsTArray.h"
@ -32,10 +33,10 @@ class FFmpegVideoDecoder<LIBAV_VER> : public FFmpegDataDecoder<LIBAV_VER>
};
public:
FFmpegVideoDecoder(FlushableTaskQueue* aTaskQueue,
MediaDataDecoderCallback* aCallback,
const VideoInfo& aConfig,
ImageContainer* aImageContainer);
FFmpegVideoDecoder(FFmpegLibWrapper* aLib, FlushableTaskQueue* aTaskQueue,
MediaDataDecoderCallback* aCallback,
const VideoInfo& aConfig,
ImageContainer* aImageContainer);
virtual ~FFmpegVideoDecoder();
RefPtr<InitPromise> Init() override;

88
dom/media/platforms/ffmpeg/ffvpx/FFVPXRuntimeLinker.cpp
View File

@ -5,47 +5,27 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "FFVPXRuntimeLinker.h"
#include "FFmpegRuntimeLinker.h"
#include "FFmpegLibWrapper.h"
#include "FFmpegLog.h"
#include "mozilla/Types.h"
#include "nsIFile.h"
#include "nsXPCOMPrivate.h" // for XUL_DLL
#include "prmem.h"
#include "prlink.h"
#if defined(XP_WIN)
#include "libavcodec/avcodec.h"
#include "libavutil/avutil.h"
#endif
namespace mozilla
{
template <int V> class FFmpegDecoderModule
{
public:
static already_AddRefed<PlatformDecoderModule> Create();
static already_AddRefed<PlatformDecoderModule> Create(FFmpegLibWrapper*);
};
namespace ffvpx
{
static FFmpegLibWrapper sFFVPXLib;
FFVPXRuntimeLinker::LinkStatus FFVPXRuntimeLinker::sLinkStatus =
LinkStatus_INIT;
PRLibrary* FFVPXRuntimeLinker::sLinkedLib = nullptr;
PRLibrary* FFVPXRuntimeLinker::sLinkedUtilLib = nullptr;
static unsigned (*avcodec_version)() = nullptr;
#ifdef __GNUC__
#define AV_FUNC(func, ver) void (*func)();
#define LIBAVCODEC_ALLVERSION
#else
#define AV_FUNC(func, ver) decltype(func)* func;
#endif
#include "FFmpegFunctionList.h"
#undef AV_FUNC
static PRLibrary*
MozAVLink(const char* aName)
{
@ -56,7 +36,7 @@ MozAVLink(const char* aName)
}
/* static */ bool
FFVPXRuntimeLinker::Link()
FFVPXRuntimeLinker::Init()
{
if (sLinkStatus) {
return sLinkStatus == LinkStatus_SUCCEEDED;
@ -67,7 +47,7 @@ FFVPXRuntimeLinker::Link()
// We retrieve the path of the XUL library as this is where mozavcodec and
// mozavutil libs are located.
char* path =
PR_GetLibraryFilePathname(XUL_DLL, (PRFuncPtr)&FFVPXRuntimeLinker::Link);
PR_GetLibraryFilePathname(XUL_DLL, (PRFuncPtr)&FFVPXRuntimeLinker::Init);
if (!path) {
return false;
}
@ -94,69 +74,29 @@ FFVPXRuntimeLinker::Link()
if (!libname) {
return false;
}
sLinkedUtilLib = MozAVLink(libname);
sFFVPXLib.mAVUtilLib = MozAVLink(libname);
PR_FreeLibraryName(libname);
libname = PR_GetLibraryName(rootPath.get(), "mozavcodec");
if (libname) {
sLinkedLib = MozAVLink(libname);
sFFVPXLib.mAVCodecLib = MozAVLink(libname);
PR_FreeLibraryName(libname);
if (sLinkedLib && sLinkedUtilLib) {
if (Bind("mozavcodec")) {
sLinkStatus = LinkStatus_SUCCEEDED;
return true;
}
}
}
Unlink();
if (sFFVPXLib.Link()) {
sLinkStatus = LinkStatus_SUCCEEDED;
return true;
}
sLinkStatus = LinkStatus_FAILED;
return false;
}
/* static */ bool
FFVPXRuntimeLinker::Bind(const char* aLibName)
{
int version = AV_FUNC_57;
#define AV_FUNC(func, ver) \
if ((ver) & version) { \
if (!(func = (decltype(func))PR_FindSymbol(((ver) & AV_FUNC_AVUTIL_MASK) ? sLinkedUtilLib : sLinkedLib, #func))) { \
FFMPEG_LOG("Couldn't load function " #func " from %s.", aLibName); \
return false; \
} \
} else { \
func = (decltype(func))nullptr; \
}
#include "FFmpegFunctionList.h"
#undef AV_FUNC
return true;
}
/* static */ already_AddRefed<PlatformDecoderModule>
FFVPXRuntimeLinker::CreateDecoderModule()
{
if (!Link()) {
if (!Init()) {
return nullptr;
}
return FFmpegDecoderModule<FFVPX_VERSION>::Create();
return FFmpegDecoderModule<FFVPX_VERSION>::Create(&sFFVPXLib);
}
/* static */ void
FFVPXRuntimeLinker::Unlink()
{
if (sLinkedUtilLib && sLinkedUtilLib != sLinkedLib) {
PR_UnloadLibrary(sLinkedUtilLib);
}
if (sLinkedLib) {
PR_UnloadLibrary(sLinkedLib);
sLinkedLib = nullptr;
sLinkStatus = LinkStatus_INIT;
avcodec_version = nullptr;
}
sLinkedUtilLib = nullptr;
}
#undef LIBAVCODEC_ALLVERSION
} // namespace ffvpx
} // namespace mozilla

14
dom/media/platforms/ffmpeg/ffvpx/FFVPXRuntimeLinker.h
View File

@ -9,35 +9,23 @@
#include "PlatformDecoderModule.h"
struct PRLibrary;
namespace mozilla
{
namespace ffvpx
{
class FFVPXRuntimeLinker
{
public:
static bool Link();
static void Unlink();
static bool Init();
static already_AddRefed<PlatformDecoderModule> CreateDecoderModule();
private:
static PRLibrary* sLinkedLib;
static PRLibrary* sLinkedUtilLib;
static enum LinkStatus {
LinkStatus_INIT = 0,
LinkStatus_FAILED,
LinkStatus_SUCCEEDED
} sLinkStatus;
static bool Bind(const char* aLibName);
};
}
}
#endif /* __FFVPXRuntimeLinker_h__ */

22
dom/media/platforms/ffmpeg/moz.build Normal file
View File

@ -0,0 +1,22 @@
# -*- Mode: python; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40 -*-
# vim: set filetype=python:
# 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/.
EXPORTS += [
'FFmpegRuntimeLinker.h',
]
DIRS += [
'libav53',
'libav54',
'libav55',
'ffmpeg57',
]
UNIFIED_SOURCES += [
'FFmpegRuntimeLinker.cpp',
]
FINAL_LIBRARY = 'xul'

17
dom/media/platforms/moz.build
View File

@ -38,23 +38,20 @@ if CONFIG['MOZ_WMF']:
if CONFIG['MOZ_EME']:
DIRS += ['agnostic/eme']
if CONFIG['MOZ_FFVPX'] or CONFIG['MOZ_FFMPEG']:
# common code to either FFmpeg or FFVPX
UNIFIED_SOURCES += [
'ffmpeg/FFmpegLibWrapper.cpp',
]
if CONFIG['MOZ_FFVPX']:
DIRS += [
'ffmpeg/ffvpx',
]
if CONFIG['MOZ_FFMPEG']:
EXPORTS += [
'ffmpeg/FFmpegRuntimeLinker.h',
]
UNIFIED_SOURCES += [
'ffmpeg/FFmpegRuntimeLinker.cpp',
]
DIRS += [
'ffmpeg/libav53',
'ffmpeg/libav54',
'ffmpeg/libav55',
'ffmpeg/ffmpeg57',
'ffmpeg',
]
if CONFIG['MOZ_APPLEMEDIA']:

8
layout/build/nsLayoutStatics.cpp
View File

@ -97,10 +97,6 @@
#include "AndroidMediaPluginHost.h"
#endif
#ifdef MOZ_FFMPEG
#include "FFmpegRuntimeLinker.h"
#endif
#include "CubebUtils.h"
#include "Latency.h"
#include "WebAudioUtils.h"
@ -394,10 +390,6 @@ nsLayoutStatics::Shutdown()
AndroidMediaPluginHost::Shutdown();
#endif
#ifdef MOZ_FFMPEG
FFmpegRuntimeLinker::Unlink();
#endif
CubebUtils::ShutdownLibrary();
AsyncLatencyLogger::ShutdownLogger();
WebAudioUtils::Shutdown();