| Index: source/patched-ffmpeg-mt/libavcodec/libfaad.c
|
| ===================================================================
|
| --- source/patched-ffmpeg-mt/libavcodec/libfaad.c (revision 50820)
|
| +++ source/patched-ffmpeg-mt/libavcodec/libfaad.c (working copy)
|
| @@ -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
|
| - * 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 true libfaad will be opened at runtime
|
| - */
|
| -//#undef CONFIG_LIBFAADBIN
|
| -//#define CONFIG_LIBFAADBIN 0
|
| -//#define CONFIG_LIBFAADBIN 1
|
| -
|
| -#if CONFIG_LIBFAADBIN
|
| -#include <dlfcn.h>
|
| -static const char* const libfaadname = "libfaad.so";
|
| -#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 void channel_setup(AVCodecContext *avctx)
|
| -{
|
| -#ifdef FAAD2_VERSION
|
| - FAACContext *s = avctx->priv_data;
|
| - if (avctx->request_channels > 0 && avctx->request_channels == 2 &&
|
| - avctx->request_channels < avctx->channels) {
|
| - faacDecConfigurationPtr faac_cfg;
|
| - avctx->channels = 2;
|
| - faac_cfg = s->faacDecGetCurrentConfiguration(s->faac_handle);
|
| - faac_cfg->downMatrix = 1;
|
| - s->faacDecSetConfiguration(s->faac_handle, faac_cfg);
|
| - }
|
| -#endif
|
| -}
|
| -
|
| -static av_cold int faac_init_mp4(AVCodecContext *avctx)
|
| -{
|
| - FAACContext *s = 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;
|
| - channel_setup(avctx);
|
| - s->init = 1;
|
| - }
|
| - }
|
| -
|
| - return r;
|
| -}
|
| -
|
| -static int faac_decode_frame(AVCodecContext *avctx,
|
| - void *data, int *data_size,
|
| - AVPacket *avpkt)
|
| -{
|
| - const uint8_t *buf = avpkt->data;
|
| - int buf_size = avpkt->size;
|
| - FAACContext *s = 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, "libfaad: codec init failed.\n");
|
| - return -1;
|
| - }
|
| - avctx->sample_rate = srate;
|
| - avctx->channels = channels;
|
| - channel_setup(avctx);
|
| - 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, "libfaad: frame decoding failed: %s\n",
|
| - s->faacDecGetErrorMessage(frame_info.error));
|
| - return -1;
|
| - }
|
| - if (!avctx->frame_size)
|
| - avctx->frame_size = frame_info.samples/avctx->channels;
|
| - 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 av_cold int faac_decode_end(AVCodecContext *avctx)
|
| -{
|
| - FAACContext *s = avctx->priv_data;
|
| -
|
| - s->faacDecClose(s->faac_handle);
|
| -
|
| - dlclose(s->handle);
|
| - return 0;
|
| -}
|
| -
|
| -static av_cold int faac_decode_init(AVCodecContext *avctx)
|
| -{
|
| - FAACContext *s = avctx->priv_data;
|
| - faacDecConfigurationPtr faac_cfg;
|
| -
|
| -#if 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) do { \
|
| - const char* n = AV_STRINGIFY(faacDec ## a); \
|
| - if (!err && !(s->faacDec ## a = dlsym(s->handle, n))) { \
|
| - err = n; \
|
| - } \
|
| - } while(0)
|
| -#else /* !CONFIG_LIBFAADBIN */
|
| -#define dfaac(a) s->faacDec ## a = faacDec ## a
|
| -#endif /* CONFIG_LIBFAADBIN */
|
| -
|
| - // resolve all needed function calls
|
| - dfaac(Open);
|
| - dfaac(Close);
|
| - dfaac(GetCurrentConfiguration);
|
| - dfaac(SetConfiguration);
|
| - dfaac(Init);
|
| - dfaac(Init2);
|
| - dfaac(Decode);
|
| -#ifdef FAAD2_VERSION
|
| - dfaac(GetErrorMessage);
|
| -#endif
|
| -
|
| -#undef dfaac
|
| -
|
| -#if CONFIG_LIBFAADBIN
|
| - 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_coded_sample) {
|
| - case 8: av_log(avctx, AV_LOG_ERROR, "FAADlib unsupported bps %d\n", avctx->bits_per_coded_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);
|
| -
|
| - if(!s->init && avctx->channels > 0)
|
| - channel_setup(avctx);
|
| -
|
| - avctx->sample_fmt = SAMPLE_FMT_S16;
|
| - return 0;
|
| -}
|
| -
|
| -AVCodec libfaad_decoder = {
|
| - "libfaad",
|
| - AVMEDIA_TYPE_AUDIO,
|
| - CODEC_ID_AAC,
|
| - sizeof(FAACContext),
|
| - faac_decode_init,
|
| - NULL,
|
| - faac_decode_end,
|
| - faac_decode_frame,
|
| - .long_name = NULL_IF_CONFIG_SMALL("libfaad AAC (Advanced Audio Codec)"),
|
| -};
|
|
|