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voukoder-ffmpeg/patches/0003-dynamic-loading-of-shared-fdk-aac-library.patch

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From de345e50f1b2d8b79c72db747c66a6bdcc646914 Mon Sep 17 00:00:00 2001
From: Gianluigi Tiesi <sherpya@netfarm.it>
Date: Sun, 4 Dec 2016 01:28:51 +0100
Subject: [PATCH 3/8] dynamic loading of shared fdk-aac library
---
configure | 6 +--
libavcodec/libfdk-aac_internal.h | 84 ++++++++++++++++++++++++++++++++
libavcodec/libfdk-aacdec.c | 32 ++++++++++--
libavcodec/libfdk-aacenc.c | 25 +++++++++-
4 files changed, 138 insertions(+), 9 deletions(-)
create mode 100644 libavcodec/libfdk-aac_internal.h
diff --git a/configure b/configure
index 69fc11fcba..d381419123 100755
--- a/configure
+++ b/configure
@@ -1726,7 +1726,6 @@ EXTERNAL_LIBRARY_GPL_LIST="
EXTERNAL_LIBRARY_NONFREE_LIST="
decklink
- libfdk_aac
openssl
libtls
"
@@ -1816,6 +1815,7 @@ EXTERNAL_LIBRARY_LIST="
opengl
pocketsphinx
vapoursynth
+ libfdk_aac
"
HWACCEL_AUTODETECT_LIBRARY_LIST="
@@ -6246,9 +6246,7 @@ enabled libdav1d && require_pkg_config libdav1d "dav1d >= 0.4.0" "dav1d
enabled libdavs2 && require_pkg_config libdavs2 "davs2 >= 1.6.0" davs2.h davs2_decoder_open
enabled libdc1394 && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
enabled libdrm && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
-enabled libfdk_aac && { check_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
- { require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
- warn "using libfdk without pkg-config"; } }
+enabled libfdk_aac && require_headers fdk-aac/aacenc_lib.h
flite_extralibs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
enabled libflite && require libflite "flite/flite.h" flite_init $flite_extralibs
enabled fontconfig && enable libfontconfig
diff --git a/libavcodec/libfdk-aac_internal.h b/libavcodec/libfdk-aac_internal.h
new file mode 100644
index 0000000000..cd1e6e3340
--- /dev/null
+++ b/libavcodec/libfdk-aac_internal.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2018 Gianluigi Tiesi
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_LIBFDK_AAC_INTERNAL_H
+#define AVCODEC_LIBFDK_AAC_INTERNAL_H
+
+#ifdef _WIN32
+#include <windows.h>
+#define LIBNAME "libfdk-aac-2.dll"
+#define dlopen(fname, f) ((void *) LoadLibraryA(fname))
+#define dlclose(handle) FreeLibrary((HMODULE) handle)
+#define dlsym(handle, name) GetProcAddress((HMODULE) handle, name)
+#else
+#include <dlfcn.h>
+#define LIBNAME "libfdk-aac.so.2"
+#endif
+
+#define DLSYM(x) \
+ do \
+ { \
+ s->pfn.x = ( imp_##x ) dlsym(s->hLib, AV_STRINGIFY(x)); \
+ if (!s->pfn.x ) \
+ { \
+ av_log(avctx, AV_LOG_ERROR, "Unable to find symbol " AV_STRINGIFY(x) " in dynamic " LIBNAME "\n"); \
+ return -1; \
+ } \
+ } while (0)
+
+
+#include <fdk-aac/aacenc_lib.h>
+#include <fdk-aac/aacdecoder_lib.h>
+
+typedef AACENC_ERROR (*imp_aacEncOpen)(HANDLE_AACENCODER *phAacEncoder, const UINT encModules, const UINT maxChannels);
+typedef AACENC_ERROR (*imp_aacEncClose)(HANDLE_AACENCODER *phAacEncoder);
+typedef AACENC_ERROR (*imp_aacEncEncode)(const HANDLE_AACENCODER hAacEncoder, const AACENC_BufDesc *inBufDesc, const AACENC_BufDesc *outBufDesc, const AACENC_InArgs *inargs, AACENC_OutArgs *outargs);
+typedef AACENC_ERROR (*imp_aacEncInfo)(const HANDLE_AACENCODER hAacEncoder, AACENC_InfoStruct *pInfo);
+typedef AACENC_ERROR (*imp_aacEncoder_SetParam)(const HANDLE_AACENCODER hAacEncoder, const AACENC_PARAM param, const UINT value);
+
+typedef struct _aacEncLib {
+ imp_aacEncOpen aacEncOpen;
+ imp_aacEncClose aacEncClose;
+ imp_aacEncEncode aacEncEncode;
+ imp_aacEncInfo aacEncInfo;
+ imp_aacEncoder_SetParam aacEncoder_SetParam;
+} aacEncLib;
+
+typedef LINKSPEC_H HANDLE_AACDECODER (*imp_aacDecoder_Open)(TRANSPORT_TYPE transportFmt, UINT nrOfLayers);
+typedef LINKSPEC_H void (*imp_aacDecoder_Close)(HANDLE_AACDECODER self);
+typedef LINKSPEC_H AAC_DECODER_ERROR (*imp_aacDecoder_Fill)(HANDLE_AACDECODER self, UCHAR *pBuffer[], const UINT bufferSize[], UINT *bytesValid);
+typedef LINKSPEC_H AAC_DECODER_ERROR (*imp_aacDecoder_DecodeFrame)(HANDLE_AACDECODER self, INT_PCM *pTimeData, const INT timeDataSize, const UINT flags);
+typedef LINKSPEC_H CStreamInfo* (*imp_aacDecoder_GetStreamInfo)(HANDLE_AACDECODER self);
+typedef LINKSPEC_H AAC_DECODER_ERROR (*imp_aacDecoder_ConfigRaw)(HANDLE_AACDECODER self, UCHAR *conf[], const UINT length[]);
+typedef LINKSPEC_H AAC_DECODER_ERROR (*imp_aacDecoder_SetParam)(const HANDLE_AACDECODER self, const AACDEC_PARAM param, const INT value);
+typedef LINKSPEC_H AAC_DECODER_ERROR (*imp_aacDecoder_AncDataInit)(HANDLE_AACDECODER self, UCHAR *buffer, int size);
+
+typedef struct _aacDecLib {
+ imp_aacDecoder_Open aacDecoder_Open;
+ imp_aacDecoder_Close aacDecoder_Close;
+ imp_aacDecoder_Fill aacDecoder_Fill;
+ imp_aacDecoder_DecodeFrame aacDecoder_DecodeFrame;
+ imp_aacDecoder_ConfigRaw aacDecoder_ConfigRaw;
+ imp_aacDecoder_GetStreamInfo aacDecoder_GetStreamInfo;
+ imp_aacDecoder_SetParam aacDecoder_SetParam;
+ imp_aacDecoder_AncDataInit aacDecoder_AncDataInit;
+} aacDecLib;
+
+#endif /* AVCODEC_LIBFDK_AAC_INTERNAL_H */
diff --git a/libavcodec/libfdk-aacdec.c b/libavcodec/libfdk-aacdec.c
index 1abe1d8438..ef7728c368 100644
--- a/libavcodec/libfdk-aacdec.c
+++ b/libavcodec/libfdk-aacdec.c
@@ -24,6 +24,7 @@
#include "libavutil/opt.h"
#include "avcodec.h"
#include "internal.h"
+#include "libfdk-aac_internal.h"
#ifdef AACDECODER_LIB_VL0
#define FDKDEC_VER_AT_LEAST(vl0, vl1) \
@@ -47,6 +48,8 @@ enum ConcealMethod {
typedef struct FDKAACDecContext {
const AVClass *class;
HANDLE_AACDECODER handle;
+ void *hLib;
+ aacDecLib pfn;
uint8_t *decoder_buffer;
int decoder_buffer_size;
uint8_t *anc_buffer;
@@ -99,7 +102,7 @@ static const AVClass fdk_aac_dec_class = {
static int get_stream_info(AVCodecContext *avctx)
{
FDKAACDecContext *s = avctx->priv_data;
- CStreamInfo *info = aacDecoder_GetStreamInfo(s->handle);
+ CStreamInfo *info = s->pfn.aacDecoder_GetStreamInfo(s->handle);
int channel_counts[0x24] = { 0 };
int i, ch_error = 0;
uint64_t ch_layout = 0;
@@ -211,8 +214,10 @@ static av_cold int fdk_aac_decode_close(AVCodecContext *avctx)
{
FDKAACDecContext *s = avctx->priv_data;
- if (s->handle)
- aacDecoder_Close(s->handle);
+ if (s->hLib && s->handle) {
+ s->pfn.aacDecoder_Close(s->handle);
+ dlclose(s->hLib);
+ }
av_freep(&s->decoder_buffer);
av_freep(&s->anc_buffer);
@@ -224,6 +229,27 @@ static av_cold int fdk_aac_decode_init(AVCodecContext *avctx)
FDKAACDecContext *s = avctx->priv_data;
AAC_DECODER_ERROR err;
+ if (!(s->hLib = dlopen(LIBNAME, RTLD_NOW))) {
+ av_log(avctx, AV_LOG_ERROR, "Unable to load " LIBNAME "\n");
+ return -1;
+ }
+
+ DLSYM(aacDecoder_Open);
+#define aacDecoder_Open s->pfn.aacDecoder_Open
+ DLSYM(aacDecoder_Close);
+ DLSYM(aacDecoder_Fill);
+#define aacDecoder_Fill s->pfn.aacDecoder_Fill
+ DLSYM(aacDecoder_DecodeFrame);
+#define aacDecoder_DecodeFrame s->pfn.aacDecoder_DecodeFrame
+ DLSYM(aacDecoder_GetStreamInfo);
+#define aacDecoder_GetStreamInfo s->pfn.aacDecoder_GetStreamInfo
+ DLSYM(aacDecoder_ConfigRaw);
+#define aacDecoder_ConfigRaw s->pfn.aacDecoder_ConfigRaw
+ DLSYM(aacDecoder_SetParam);
+#define aacDecoder_SetParam s->pfn.aacDecoder_SetParam
+ DLSYM(aacDecoder_AncDataInit);
+#define aacDecoder_AncDataInit s->pfn.aacDecoder_AncDataInit
+
s->handle = aacDecoder_Open(avctx->extradata_size ? TT_MP4_RAW : TT_MP4_ADTS, 1);
if (!s->handle) {
av_log(avctx, AV_LOG_ERROR, "Error opening decoder\n");
diff --git a/libavcodec/libfdk-aacenc.c b/libavcodec/libfdk-aacenc.c
index 5620bb5951..c4519b6b74 100644
--- a/libavcodec/libfdk-aacenc.c
+++ b/libavcodec/libfdk-aacenc.c
@@ -26,6 +26,8 @@
#include "audio_frame_queue.h"
#include "internal.h"
+#include "libfdk-aac_internal.h"
+
#ifdef AACENCODER_LIB_VL0
#define FDKENC_VER_AT_LEAST(vl0, vl1) \
((AACENCODER_LIB_VL0 > vl0) || \
@@ -45,6 +47,8 @@ typedef struct AACContext {
int header_period;
int vbr;
+ void *hLib;
+ aacEncLib pfn;
AudioFrameQueue afq;
} AACContext;
@@ -108,8 +112,10 @@ static int aac_encode_close(AVCodecContext *avctx)
{
AACContext *s = avctx->priv_data;
- if (s->handle)
- aacEncClose(&s->handle);
+ if (s->hLib && s->handle) {
+ s->pfn.aacEncClose(&s->handle);
+ dlclose(s->hLib);
+ }
av_freep(&avctx->extradata);
ff_af_queue_close(&s->afq);
@@ -126,6 +132,21 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
int aot = FF_PROFILE_AAC_LOW + 1;
int sce = 0, cpe = 0;
+ if (!(s->hLib = dlopen(LIBNAME, RTLD_NOW))) {
+ av_log(avctx, AV_LOG_ERROR, "Unable to load " LIBNAME "\n");
+ return -1;
+ }
+
+ DLSYM(aacEncOpen);
+#define aacEncOpen s->pfn.aacEncOpen
+ DLSYM(aacEncClose);
+ DLSYM(aacEncEncode);
+#define aacEncEncode s->pfn.aacEncEncode
+ DLSYM(aacEncInfo);
+#define aacEncInfo s->pfn.aacEncInfo
+ DLSYM(aacEncoder_SetParam);
+#define aacEncoder_SetParam s->pfn.aacEncoder_SetParam
+
if ((err = aacEncOpen(&s->handle, 0, avctx->channels)) != AACENC_OK) {
av_log(avctx, AV_LOG_ERROR, "Unable to open the encoder: %s\n",
aac_get_error(err));
--
2.24.0
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