diff options
Diffstat (limited to 'libavcodec/libfaac.c')
| -rw-r--r-- | libavcodec/libfaac.c | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/libavcodec/libfaac.c b/libavcodec/libfaac.c index 51d965e87a..31dc1a41ed 100644 --- a/libavcodec/libfaac.c +++ b/libavcodec/libfaac.c @@ -2,20 +2,20 @@ * Interface to libfaac for aac encoding * Copyright (c) 2002 Gildas Bazin <gbazin@netcourrier.com> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -31,6 +31,13 @@ typedef struct FaacAudioContext { faacEncHandle faac_handle; } FaacAudioContext; +static const int channel_maps[][6] = { + { 2, 0, 1 }, //< C L R + { 2, 0, 1, 3 }, //< C L R Cs + { 2, 0, 1, 3, 4 }, //< C L R Ls Rs + { 2, 0, 1, 4, 5, 3 }, //< C L R Ls Rs LFE +}; + static av_cold int Faac_encode_init(AVCodecContext *avctx) { FaacAudioContext *s = avctx->priv_data; @@ -86,6 +93,9 @@ static av_cold int Faac_encode_init(AVCodecContext *avctx) } faac_cfg->outputFormat = 1; faac_cfg->inputFormat = FAAC_INPUT_16BIT; + if (avctx->channels > 2) + memcpy(faac_cfg->channel_map, channel_maps[avctx->channels-3], + avctx->channels * sizeof(int)); avctx->frame_size = samples_input / avctx->channels; @@ -155,13 +165,13 @@ static const AVProfile profiles[] = { }; AVCodec ff_libfaac_encoder = { - "libfaac", - AVMEDIA_TYPE_AUDIO, - CODEC_ID_AAC, - sizeof(FaacAudioContext), - Faac_encode_init, - Faac_encode_frame, - Faac_encode_close, + .name = "libfaac", + .type = AVMEDIA_TYPE_AUDIO, + .id = CODEC_ID_AAC, + .priv_data_size = sizeof(FaacAudioContext), + .init = Faac_encode_init, + .encode = Faac_encode_frame, + .close = Faac_encode_close, .capabilities = CODEC_CAP_SMALL_LAST_FRAME | CODEC_CAP_DELAY, .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16,AV_SAMPLE_FMT_NONE}, .long_name = NULL_IF_CONFIG_SMALL("libfaac AAC (Advanced Audio Codec)"), |