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Diffstat (limited to 'contrib/ffmpeg/libavcodec/faad.c')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/faad.c | 333 |
1 files changed, 0 insertions, 333 deletions
diff --git a/contrib/ffmpeg/libavcodec/faad.c b/contrib/ffmpeg/libavcodec/faad.c deleted file mode 100644 index 01cbd40e7..000000000 --- a/contrib/ffmpeg/libavcodec/faad.c +++ /dev/null @@ -1,333 +0,0 @@ -/* - * Faad decoder - * Copyright (c) 2003 Zdenek Kabelac. - * Copyright (c) 2004 Thomas Raivio. - * - * 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 - */ - -/** - * @file faad.c - * AAC decoder. - * - * still a bit unfinished - but it plays something - */ - -#include "avcodec.h" -#include "faad.h" - -#ifndef FAADAPI -#define FAADAPI -#endif - -/* - * when CONFIG_LIBFAADBIN is defined the libfaad will be opened at runtime - */ -//#undef CONFIG_LIBFAADBIN -//#define CONFIG_LIBFAADBIN - -#ifdef CONFIG_LIBFAADBIN -#include <dlfcn.h> -static const char* libfaadname = "libfaad.so.0"; -#else -#define dlopen(a) -#define dlclose(a) -#endif - -typedef struct { - void* handle; /* dlopen handle */ - void* faac_handle; /* FAAD library handle */ - int sample_size; - int init; - - /* faad calls */ - faacDecHandle FAADAPI (*faacDecOpen)(void); - faacDecConfigurationPtr FAADAPI (*faacDecGetCurrentConfiguration)(faacDecHandle hDecoder); -#ifndef FAAD2_VERSION - int FAADAPI (*faacDecSetConfiguration)(faacDecHandle hDecoder, - faacDecConfigurationPtr config); - int FAADAPI (*faacDecInit)(faacDecHandle hDecoder, - unsigned char *buffer, - unsigned long *samplerate, - unsigned long *channels); - int FAADAPI (*faacDecInit2)(faacDecHandle hDecoder, unsigned char *pBuffer, - unsigned long SizeOfDecoderSpecificInfo, - unsigned long *samplerate, unsigned long *channels); - int FAADAPI (*faacDecDecode)(faacDecHandle hDecoder, - unsigned char *buffer, - unsigned long *bytesconsumed, - short *sample_buffer, - unsigned long *samples); -#else - unsigned char FAADAPI (*faacDecSetConfiguration)(faacDecHandle hDecoder, - faacDecConfigurationPtr config); - long FAADAPI (*faacDecInit)(faacDecHandle hDecoder, - unsigned char *buffer, - unsigned long buffer_size, - unsigned long *samplerate, - unsigned char *channels); - char FAADAPI (*faacDecInit2)(faacDecHandle hDecoder, unsigned char *pBuffer, - unsigned long SizeOfDecoderSpecificInfo, - unsigned long *samplerate, unsigned char *channels); - void *FAADAPI (*faacDecDecode)(faacDecHandle hDecoder, - faacDecFrameInfo *hInfo, - unsigned char *buffer, - unsigned long buffer_size); - char* FAADAPI (*faacDecGetErrorMessage)(unsigned char errcode); -#endif - - void FAADAPI (*faacDecClose)(faacDecHandle hDecoder); - - -} FAACContext; - -static const unsigned long faac_srates[] = -{ - 96000, 88200, 64000, 48000, 44100, 32000, - 24000, 22050, 16000, 12000, 11025, 8000 -}; - -static int faac_init_mp4(AVCodecContext *avctx) -{ - FAACContext *s = (FAACContext *) avctx->priv_data; - unsigned long samplerate; -#ifndef FAAD2_VERSION - unsigned long channels; -#else - unsigned char channels; -#endif - int r = 0; - - if (avctx->extradata){ - r = s->faacDecInit2(s->faac_handle, (uint8_t*) avctx->extradata, - avctx->extradata_size, - &samplerate, &channels); - if (r < 0){ - av_log(avctx, AV_LOG_ERROR, - "faacDecInit2 failed r:%d sr:%ld ch:%ld s:%d\n", - r, samplerate, (long)channels, avctx->extradata_size); - } else { - avctx->sample_rate = samplerate; - avctx->channels = channels; - s->init = 1; - } - } - - return r; -} - -static int faac_decode_frame(AVCodecContext *avctx, - void *data, int *data_size, - uint8_t *buf, int buf_size) -{ - FAACContext *s = (FAACContext *) avctx->priv_data; -#ifndef FAAD2_VERSION - unsigned long bytesconsumed; - short *sample_buffer = NULL; - unsigned long samples; - int out; -#else - faacDecFrameInfo frame_info; - void *out; -#endif - if(buf_size == 0) - return 0; -#ifndef FAAD2_VERSION - out = s->faacDecDecode(s->faac_handle, - (unsigned char*)buf, - &bytesconsumed, - data, - &samples); - samples *= s->sample_size; - if (data_size) - *data_size = samples; - return (buf_size < (int)bytesconsumed) - ? buf_size : (int)bytesconsumed; -#else - - if(!s->init){ - unsigned long srate; - unsigned char channels; - int r = s->faacDecInit(s->faac_handle, buf, buf_size, &srate, &channels); - if(r < 0){ - av_log(avctx, AV_LOG_ERROR, "faac: codec init failed: %s\n", - s->faacDecGetErrorMessage(frame_info.error)); - return -1; - } - avctx->sample_rate = srate; - avctx->channels = channels; - s->init = 1; - } - - out = s->faacDecDecode(s->faac_handle, &frame_info, (unsigned char*)buf, (unsigned long)buf_size); - - if (frame_info.error > 0) { - av_log(avctx, AV_LOG_ERROR, "faac: frame decoding failed: %s\n", - s->faacDecGetErrorMessage(frame_info.error)); - return -1; - } - - frame_info.samples *= s->sample_size; - memcpy(data, out, frame_info.samples); // CHECKME - can we cheat this one - - if (data_size) - *data_size = frame_info.samples; - - return (buf_size < (int)frame_info.bytesconsumed) - ? buf_size : (int)frame_info.bytesconsumed; -#endif -} - -static int faac_decode_end(AVCodecContext *avctx) -{ - FAACContext *s = (FAACContext *) avctx->priv_data; - - s->faacDecClose(s->faac_handle); - - dlclose(s->handle); - return 0; -} - -static int faac_decode_init(AVCodecContext *avctx) -{ - FAACContext *s = (FAACContext *) avctx->priv_data; - faacDecConfigurationPtr faac_cfg; - -#ifdef CONFIG_LIBFAADBIN - const char* err = 0; - - s->handle = dlopen(libfaadname, RTLD_LAZY); - if (!s->handle) - { - av_log(avctx, AV_LOG_ERROR, "FAAD library: %s could not be opened! \n%s\n", - libfaadname, dlerror()); - return -1; - } -#define dfaac(a, b) \ - do { static const char* n = "faacDec" #a; \ - if ((s->faacDec ## a = b dlsym( s->handle, n )) == NULL) { err = n; break; } } while(0) - for(;;) { -#else /* !CONFIG_LIBFAADBIN */ -#define dfaac(a, b) s->faacDec ## a = faacDec ## a -#endif /* CONFIG_LIBFAADBIN */ - - // resolve all needed function calls - dfaac(Open, (faacDecHandle FAADAPI (*)(void))); - dfaac(Close, (void FAADAPI (*)(faacDecHandle hDecoder))); - dfaac(GetCurrentConfiguration, (faacDecConfigurationPtr - FAADAPI (*)(faacDecHandle))); -#ifndef FAAD2_VERSION - dfaac(SetConfiguration, (int FAADAPI (*)(faacDecHandle, - faacDecConfigurationPtr))); - - dfaac(Init, (int FAADAPI (*)(faacDecHandle, unsigned char*, - unsigned long*, unsigned long*))); - dfaac(Init2, (int FAADAPI (*)(faacDecHandle, unsigned char*, - unsigned long, unsigned long*, - unsigned long*))); - dfaac(Decode, (int FAADAPI (*)(faacDecHandle, unsigned char*, - unsigned long*, short*, unsigned long*))); -#else - dfaac(SetConfiguration, (unsigned char FAADAPI (*)(faacDecHandle, - faacDecConfigurationPtr))); - dfaac(Init, (long FAADAPI (*)(faacDecHandle, unsigned char*, - unsigned long, unsigned long*, unsigned char*))); - dfaac(Init2, (char FAADAPI (*)(faacDecHandle, unsigned char*, - unsigned long, unsigned long*, - unsigned char*))); - dfaac(Decode, (void *FAADAPI (*)(faacDecHandle, faacDecFrameInfo*, - unsigned char*, unsigned long))); - dfaac(GetErrorMessage, (char* FAADAPI (*)(unsigned char))); -#endif -#undef dfacc - -#ifdef CONFIG_LIBFAADBIN - break; - } - if (err) { - dlclose(s->handle); - av_log(avctx, AV_LOG_ERROR, "FAAD library: cannot resolve %s in %s!\n", - err, libfaadname); - return -1; - } -#endif - - s->faac_handle = s->faacDecOpen(); - if (!s->faac_handle) { - av_log(avctx, AV_LOG_ERROR, "FAAD library: cannot create handler!\n"); - faac_decode_end(avctx); - return -1; - } - - - faac_cfg = s->faacDecGetCurrentConfiguration(s->faac_handle); - - if (faac_cfg) { - switch (avctx->bits_per_sample) { - case 8: av_log(avctx, AV_LOG_ERROR, "FAADlib unsupported bps %d\n", avctx->bits_per_sample); break; - default: - case 16: -#ifdef FAAD2_VERSION - faac_cfg->outputFormat = FAAD_FMT_16BIT; -#endif - s->sample_size = 2; - break; - case 24: -#ifdef FAAD2_VERSION - faac_cfg->outputFormat = FAAD_FMT_24BIT; -#endif - s->sample_size = 3; - break; - case 32: -#ifdef FAAD2_VERSION - faac_cfg->outputFormat = FAAD_FMT_32BIT; -#endif - s->sample_size = 4; - break; - } - - faac_cfg->defSampleRate = (!avctx->sample_rate) ? 44100 : avctx->sample_rate; - faac_cfg->defObjectType = LC; - } - - s->faacDecSetConfiguration(s->faac_handle, faac_cfg); - - faac_init_mp4(avctx); - - return 0; -} - -#define AAC_CODEC(id, name) \ -AVCodec name ## _decoder = { \ - #name, \ - CODEC_TYPE_AUDIO, \ - id, \ - sizeof(FAACContext), \ - faac_decode_init, \ - NULL, \ - faac_decode_end, \ - faac_decode_frame, \ -} - -// FIXME - raw AAC files - maybe just one entry will be enough -AAC_CODEC(CODEC_ID_AAC, aac); -#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) -// If it's mp4 file - usually embeded into Qt Mov -AAC_CODEC(CODEC_ID_MPEG4AAC, mpeg4aac); -#endif - -#undef AAC_CODEC |