diff options
Diffstat (limited to 'contrib/ffmpeg/libavcodec/faac.c')
-rw-r--r-- | contrib/ffmpeg/libavcodec/faac.c | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/contrib/ffmpeg/libavcodec/faac.c b/contrib/ffmpeg/libavcodec/faac.c deleted file mode 100644 index 9ff9f5ed0..000000000 --- a/contrib/ffmpeg/libavcodec/faac.c +++ /dev/null @@ -1,136 +0,0 @@ -/* - * Interface to libfaac for aac encoding - * Copyright (c) 2002 Gildas Bazin <gbazin@netcourrier.com> - * - * 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 faacaudio.c - * Interface to libfaac for aac encoding. - */ - -#include "avcodec.h" -#include <faac.h> - -typedef struct FaacAudioContext { - faacEncHandle faac_handle; -} FaacAudioContext; - -static int Faac_encode_init(AVCodecContext *avctx) -{ - FaacAudioContext *s = avctx->priv_data; - faacEncConfigurationPtr faac_cfg; - unsigned long samples_input, max_bytes_output; - - /* number of channels */ - if (avctx->channels < 1 || avctx->channels > 6) - return -1; - - s->faac_handle = faacEncOpen(avctx->sample_rate, - avctx->channels, - &samples_input, &max_bytes_output); - - /* check faac version */ - faac_cfg = faacEncGetCurrentConfiguration(s->faac_handle); - if (faac_cfg->version != FAAC_CFG_VERSION) { - av_log(avctx, AV_LOG_ERROR, "wrong libfaac version (compiled for: %d, using %d)\n", FAAC_CFG_VERSION, faac_cfg->version); - faacEncClose(s->faac_handle); - return -1; - } - - /* put the options in the configuration struct */ - faac_cfg->aacObjectType = LOW; - faac_cfg->mpegVersion = MPEG4; - faac_cfg->useTns = 0; - faac_cfg->allowMidside = 1; - faac_cfg->bitRate = avctx->bit_rate / avctx->channels; - faac_cfg->bandWidth = avctx->cutoff; - if(avctx->flags & CODEC_FLAG_QSCALE) { - faac_cfg->bitRate = 0; - faac_cfg->quantqual = avctx->global_quality / FF_QP2LAMBDA; - } - faac_cfg->outputFormat = 1; - faac_cfg->inputFormat = FAAC_INPUT_16BIT; - - avctx->frame_size = samples_input / avctx->channels; - - avctx->coded_frame= avcodec_alloc_frame(); - avctx->coded_frame->key_frame= 1; - - /* Set decoder specific info */ - avctx->extradata_size = 0; - if (avctx->flags & CODEC_FLAG_GLOBAL_HEADER) { - - unsigned char *buffer = NULL; - unsigned long decoder_specific_info_size; - - if (!faacEncGetDecoderSpecificInfo(s->faac_handle, &buffer, - &decoder_specific_info_size)) { - avctx->extradata = av_malloc(decoder_specific_info_size + FF_INPUT_BUFFER_PADDING_SIZE); - avctx->extradata_size = decoder_specific_info_size; - memcpy(avctx->extradata, buffer, avctx->extradata_size); - faac_cfg->outputFormat = 0; - } -#undef free - free(buffer); -#define free please_use_av_free - } - - if (!faacEncSetConfiguration(s->faac_handle, faac_cfg)) { - av_log(avctx, AV_LOG_ERROR, "libfaac doesn't support this output format!\n"); - return -1; - } - - return 0; -} - -static int Faac_encode_frame(AVCodecContext *avctx, - unsigned char *frame, int buf_size, void *data) -{ - FaacAudioContext *s = avctx->priv_data; - int bytes_written; - - bytes_written = faacEncEncode(s->faac_handle, - data, - avctx->frame_size * avctx->channels, - frame, - buf_size); - - return bytes_written; -} - -static int Faac_encode_close(AVCodecContext *avctx) -{ - FaacAudioContext *s = avctx->priv_data; - - av_freep(&avctx->coded_frame); - av_freep(&avctx->extradata); - - faacEncClose(s->faac_handle); - return 0; -} - -AVCodec faac_encoder = { - "aac", - CODEC_TYPE_AUDIO, - CODEC_ID_AAC, - sizeof(FaacAudioContext), - Faac_encode_init, - Faac_encode_frame, - Faac_encode_close -}; |