diff options
Diffstat (limited to 'ffmpeg/libavcodec/libaacplus.c')
| -rw-r--r-- | ffmpeg/libavcodec/libaacplus.c | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/ffmpeg/libavcodec/libaacplus.c b/ffmpeg/libavcodec/libaacplus.c deleted file mode 100644 index 545e240..0000000 --- a/ffmpeg/libavcodec/libaacplus.c +++ /dev/null @@ -1,141 +0,0 @@ -/* - * Interface to libaacplus for aac+ (sbr+ps) encoding - * Copyright (c) 2010 tipok <piratfm@gmail.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 - * Interface to libaacplus for aac+ (sbr+ps) encoding. - */ - -#include <aacplus.h> - -#include "avcodec.h" -#include "internal.h" - -typedef struct aacPlusAudioContext { - aacplusEncHandle aacplus_handle; - unsigned long max_output_bytes; - unsigned long samples_input; -} aacPlusAudioContext; - -static av_cold int aacPlus_encode_init(AVCodecContext *avctx) -{ - aacPlusAudioContext *s = avctx->priv_data; - aacplusEncConfiguration *aacplus_cfg; - - /* number of channels */ - if (avctx->channels < 1 || avctx->channels > 2) { - av_log(avctx, AV_LOG_ERROR, "encoding %d channel(s) is not allowed\n", avctx->channels); - return AVERROR(EINVAL); - } - - if (avctx->profile != FF_PROFILE_AAC_LOW && avctx->profile != FF_PROFILE_UNKNOWN) { - av_log(avctx, AV_LOG_ERROR, "invalid AAC profile: %d, only LC supported\n", avctx->profile); - return AVERROR(EINVAL); - } - - s->aacplus_handle = aacplusEncOpen(avctx->sample_rate, avctx->channels, - &s->samples_input, &s->max_output_bytes); - if (!s->aacplus_handle) { - av_log(avctx, AV_LOG_ERROR, "can't open encoder\n"); - return AVERROR(EINVAL); - } - - /* check aacplus version */ - aacplus_cfg = aacplusEncGetCurrentConfiguration(s->aacplus_handle); - - aacplus_cfg->bitRate = avctx->bit_rate; - aacplus_cfg->bandWidth = avctx->cutoff; - aacplus_cfg->outputFormat = !(avctx->flags & CODEC_FLAG_GLOBAL_HEADER); - aacplus_cfg->inputFormat = avctx->sample_fmt == AV_SAMPLE_FMT_FLT ? AACPLUS_INPUT_FLOAT : AACPLUS_INPUT_16BIT; - if (!aacplusEncSetConfiguration(s->aacplus_handle, aacplus_cfg)) { - av_log(avctx, AV_LOG_ERROR, "libaacplus doesn't support this output format!\n"); - return AVERROR(EINVAL); - } - - avctx->frame_size = s->samples_input / avctx->channels; - - /* 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 (aacplusEncGetDecoderSpecificInfo(s->aacplus_handle, &buffer, - &decoder_specific_info_size) == 1) { - 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); - } - free(buffer); - } - return 0; -} - -static int aacPlus_encode_frame(AVCodecContext *avctx, AVPacket *pkt, - const AVFrame *frame, int *got_packet) -{ - aacPlusAudioContext *s = avctx->priv_data; - int32_t *input_buffer = (int32_t *)frame->data[0]; - int ret; - - if ((ret = ff_alloc_packet2(avctx, pkt, s->max_output_bytes)) < 0) - return ret; - - pkt->size = aacplusEncEncode(s->aacplus_handle, input_buffer, - s->samples_input, pkt->data, pkt->size); - *got_packet = 1; - pkt->pts = frame->pts; - return 0; -} - -static av_cold int aacPlus_encode_close(AVCodecContext *avctx) -{ - aacPlusAudioContext *s = avctx->priv_data; - - av_freep(&avctx->extradata); - aacplusEncClose(s->aacplus_handle); - - return 0; -} - -static const AVProfile profiles[] = { - { FF_PROFILE_AAC_LOW, "LC" }, - { FF_PROFILE_UNKNOWN }, -}; - -AVCodec ff_libaacplus_encoder = { - .name = "libaacplus", - .long_name = NULL_IF_CONFIG_SMALL("libaacplus AAC+ (Advanced Audio Codec with SBR+PS)"), - .type = AVMEDIA_TYPE_AUDIO, - .id = AV_CODEC_ID_AAC, - .priv_data_size = sizeof(aacPlusAudioContext), - .init = aacPlus_encode_init, - .encode2 = aacPlus_encode_frame, - .close = aacPlus_encode_close, - .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16, - AV_SAMPLE_FMT_FLT, - AV_SAMPLE_FMT_NONE }, - .profiles = profiles, - .channel_layouts = (const uint64_t[]) { AV_CH_LAYOUT_MONO, - AV_CH_LAYOUT_STEREO, - 0 }, -}; |