--- Changelog | 1 + configure | 6 ++ libavcodec/Makefile | 1 + libavcodec/allcodecs.c | 1 + libavcodec/libvo-aacenc.c | 132 +++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 141 insertions(+), 0 deletions(-) create mode 100644 libavcodec/libvo-aacenc.c
diff --git a/Changelog b/Changelog index ec09c28..6a255d4 100644 --- a/Changelog +++ b/Changelog @@ -83,6 +83,7 @@ version <next>: - Linux framebuffer input device added - Chronomaster DFA decoder - Mobotix MxPEG decoder +- AAC encoding via libvo-aacenc version 0.6: diff --git a/configure b/configure index 92a809f..8880fba 100755 --- a/configure +++ b/configure @@ -178,6 +178,7 @@ External library support: --enable-libschroedinger enable Dirac support via libschroedinger [no] --enable-libspeex enable Speex decoding via libspeex [no] --enable-libtheora enable Theora encoding via libtheora [no] + --enable-libvo-aacenc enable AAC encoding via libvo-aacenc [no] --enable-libvorbis enable Vorbis encoding via libvorbis, native implementation exists [no] --enable-libvpx enable VP8 support via libvpx [no] @@ -937,6 +938,7 @@ CONFIG_LIST=" libschroedinger libspeex libtheora + libvo_aacenc libvorbis libvpx libx264 @@ -1384,6 +1386,7 @@ libschroedinger_decoder_deps="libschroedinger" libschroedinger_encoder_deps="libschroedinger" libspeex_decoder_deps="libspeex" libtheora_encoder_deps="libtheora" +libvo_aacenc_encoder_deps="libvo_aacenc" libvorbis_encoder_deps="libvorbis" libvpx_decoder_deps="libvpx" libvpx_encoder_deps="libvpx" @@ -2525,6 +2528,7 @@ die_license_disabled nonfree libfaac die_license_disabled version3 libopencore_amrnb die_license_disabled version3 libopencore_amrwb +die_license_disabled version3 libvo_aacenc enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; } @@ -2864,6 +2868,7 @@ enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg +enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg enabled libvpx && { enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx || @@ -3132,6 +3137,7 @@ echo "libschroedinger enabled ${libschroedinger-no}" echo "libspeex enabled ${libspeex-no}" echo "libtheora enabled ${libtheora-no}" echo "libva enabled ${vaapi-no}" +echo "libvo-aacenc support ${libvo_aacenc-no}" echo "libvorbis enabled ${libvorbis-no}" echo "libvpx enabled ${libvpx-no}" echo "libx264 enabled ${libx264-no}" diff --git a/libavcodec/Makefile b/libavcodec/Makefile index 837f7e2..e9c40e4 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -568,6 +568,7 @@ OBJS-$(CONFIG_LIBSCHROEDINGER_ENCODER) += libschroedingerenc.o \ libdirac_libschro.o OBJS-$(CONFIG_LIBSPEEX_DECODER) += libspeexdec.o OBJS-$(CONFIG_LIBTHEORA_ENCODER) += libtheoraenc.o +OBJS-$(CONFIG_LIBVO_AACENC_ENCODER) += libvo-aacenc.o mpeg4audio.o OBJS-$(CONFIG_LIBVORBIS_ENCODER) += libvorbis.o vorbis_data.o OBJS-$(CONFIG_LIBVPX_DECODER) += libvpxdec.o OBJS-$(CONFIG_LIBVPX_ENCODER) += libvpxenc.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 7636392..e0323ac 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -366,6 +366,7 @@ void avcodec_register_all(void) REGISTER_ENCDEC (LIBSCHROEDINGER, libschroedinger); REGISTER_DECODER (LIBSPEEX, libspeex); REGISTER_ENCODER (LIBTHEORA, libtheora); + REGISTER_ENCODER (LIBVO_AACENC, libvo_aacenc); REGISTER_ENCODER (LIBVORBIS, libvorbis); REGISTER_ENCDEC (LIBVPX, libvpx); REGISTER_ENCODER (LIBX264, libx264); diff --git a/libavcodec/libvo-aacenc.c b/libavcodec/libvo-aacenc.c new file mode 100644 index 0000000..34389f1 --- /dev/null +++ b/libavcodec/libvo-aacenc.c @@ -0,0 +1,132 @@ +/* + * AAC encoder wrapper + * Copyright (c) 2010 Martin Storsjo + * + * This file is part of Libav. + * + * Libav 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, + * 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 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "avcodec.h" +#include <vo-aacenc/voAAC.h> +#include <vo-aacenc/cmnMemory.h> +#include "mpeg4audio.h" + +typedef struct AACContext { + VO_AUDIO_CODECAPI codec_api; + VO_HANDLE handle; + VO_MEM_OPERATOR mem_operator; + VO_CODEC_INIT_USERDATA user_data; +} AACContext; + +static av_cold int aac_encode_init(AVCodecContext *avctx) +{ + AACContext *s = avctx->priv_data; + AACENC_PARAM params; + int index; + + avctx->coded_frame = avcodec_alloc_frame(); + avctx->frame_size = 1024; + + voGetAACEncAPI(&s->codec_api); + + s->mem_operator.Alloc = cmnMemAlloc; + s->mem_operator.Copy = cmnMemCopy; + s->mem_operator.Free = cmnMemFree; + s->mem_operator.Set = cmnMemSet; + s->mem_operator.Check = cmnMemCheck; + s->user_data.memflag = VO_IMF_USERMEMOPERATOR; + s->user_data.memData = &s->mem_operator; + s->codec_api.Init(&s->handle, VO_AUDIO_CodingAAC, &s->user_data); + + memset(¶ms, 0, sizeof(params)); + params.sampleRate = avctx->sample_rate; + params.bitRate = avctx->bit_rate; + params.nChannels = avctx->channels; + params.adtsUsed = 0; + if (s->codec_api.SetParam(s->handle, VO_PID_AAC_ENCPARAM, ¶ms) + != VO_ERR_NONE) { + av_log(avctx, AV_LOG_ERROR, "Unable to set encoding parameters\n"); + return AVERROR_UNKNOWN; + } + + avctx->extradata_size = 2; + avctx->extradata = av_mallocz(avctx->extradata_size + + FF_INPUT_BUFFER_PADDING_SIZE); + if (!avctx->extradata) + return AVERROR(ENOMEM); + + for (index = 0; index < 16; index++) + if (avctx->sample_rate == ff_mpeg4audio_sample_rates[index]) + break; + if (index == 16) { + av_log(avctx, AV_LOG_ERROR, "Unsupported sample rate %d\n", + avctx->sample_rate); + return AVERROR_NOTSUPP; + } + avctx->extradata[0] = 0x02 << 3 | index >> 1; + avctx->extradata[1] = (index & 0x01) << 7 | avctx->channels << 3; + return 0; +} + +static int aac_encode_close(AVCodecContext *avctx) +{ + AACContext *s = avctx->priv_data; + + s->codec_api.Uninit(s->handle); + av_freep(&avctx->coded_frame); + + return 0; +} + +static int aac_encode_frame(AVCodecContext *avctx, + unsigned char *frame/*out*/, + int buf_size, void *data/*in*/) +{ + AACContext *s = avctx->priv_data; + VO_CODECBUFFER input, output; + VO_AUDIO_OUTPUTINFO output_info; + + memset(&input, 0, sizeof(input)); + memset(&output, 0, sizeof(output)); + memset(&output_info, 0, sizeof(output_info)); + + input.Buffer = data; + input.Length = 2 * avctx->channels * avctx->frame_size; + output.Buffer = frame; + output.Length = buf_size; + + s->codec_api.SetInputData(s->handle, &input); + if (s->codec_api.GetOutputData(s->handle, &output, &output_info) + != VO_ERR_NONE) { + av_log(avctx, AV_LOG_ERROR, "Unable to encode frame\n"); + return AVERROR_UNKNOWN; + } + return output.Length; +} + +AVCodec ff_libvo_aacenc_encoder = { + "libvo_aacenc", + CODEC_TYPE_AUDIO, + CODEC_ID_AAC, + sizeof(AACContext), + aac_encode_init, + aac_encode_frame, + aac_encode_close, + NULL, + .sample_fmts = (enum SampleFormat[]){SAMPLE_FMT_S16,SAMPLE_FMT_NONE}, + .long_name = NULL_IF_CONFIG_SMALL("libvo-aacenc AAC"), +}; + -- 1.7.3.1 _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel