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-rw-r--r--libavcodec/libfaac.c248
1 files changed, 0 insertions, 248 deletions
diff --git a/libavcodec/libfaac.c b/libavcodec/libfaac.c
deleted file mode 100644
index 98b3ba8183..0000000000
--- a/libavcodec/libfaac.c
+++ /dev/null
@@ -1,248 +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
- * Interface to libfaac for aac encoding.
- */
-
-#include <faac.h>
-
-#include "libavutil/channel_layout.h"
-#include "libavutil/common.h"
-#include "avcodec.h"
-#include "audio_frame_queue.h"
-#include "internal.h"
-
-
-/* libfaac has an encoder delay of 1024 samples */
-#define FAAC_DELAY_SAMPLES 1024
-
-typedef struct FaacAudioContext {
- faacEncHandle faac_handle;
- AudioFrameQueue afq;
-} FaacAudioContext;
-
-static av_cold int Faac_encode_close(AVCodecContext *avctx)
-{
- FaacAudioContext *s = avctx->priv_data;
-
- av_freep(&avctx->extradata);
- ff_af_queue_close(&s->afq);
-
- if (s->faac_handle)
- faacEncClose(s->faac_handle);
-
- return 0;
-}
-
-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;
- faacEncConfigurationPtr faac_cfg;
- unsigned long samples_input, max_bytes_output;
- int ret;
-
- /* number of channels */
- if (avctx->channels < 1 || avctx->channels > 6) {
- av_log(avctx, AV_LOG_ERROR, "encoding %d channel(s) is not allowed\n", avctx->channels);
- ret = AVERROR(EINVAL);
- goto error;
- }
-
- s->faac_handle = faacEncOpen(avctx->sample_rate,
- avctx->channels,
- &samples_input, &max_bytes_output);
- if (!s->faac_handle) {
- av_log(avctx, AV_LOG_ERROR, "error in faacEncOpen()\n");
- ret = AVERROR_UNKNOWN;
- goto error;
- }
-
- /* 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);
- ret = AVERROR(EINVAL);
- goto error;
- }
-
- /* put the options in the configuration struct */
- switch(avctx->profile) {
- case FF_PROFILE_AAC_MAIN:
- faac_cfg->aacObjectType = MAIN;
- break;
- case FF_PROFILE_UNKNOWN:
- case FF_PROFILE_AAC_LOW:
- faac_cfg->aacObjectType = LOW;
- break;
- case FF_PROFILE_AAC_SSR:
- faac_cfg->aacObjectType = SSR;
- break;
- case FF_PROFILE_AAC_LTP:
- faac_cfg->aacObjectType = LTP;
- break;
- default:
- av_log(avctx, AV_LOG_ERROR, "invalid AAC profile\n");
- ret = AVERROR(EINVAL);
- goto error;
- }
- 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 & AV_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;
- 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;
-
- /* Set decoder specific info */
- avctx->extradata_size = 0;
- if (avctx->flags & AV_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 + AV_INPUT_BUFFER_PADDING_SIZE);
- if (!avctx->extradata) {
- ret = AVERROR(ENOMEM);
- goto error;
- }
- avctx->extradata_size = decoder_specific_info_size;
- memcpy(avctx->extradata, buffer, avctx->extradata_size);
- faac_cfg->outputFormat = 0;
- }
- free(buffer);
- }
-
- if (!faacEncSetConfiguration(s->faac_handle, faac_cfg)) {
- int i;
- for (i = avctx->bit_rate/1000; i ; i--) {
- faac_cfg->bitRate = 1000*i / avctx->channels;
- if (faacEncSetConfiguration(s->faac_handle, faac_cfg))
- break;
- }
- if (!i) {
- av_log(avctx, AV_LOG_ERROR, "libfaac doesn't support this output format!\n");
- ret = AVERROR(EINVAL);
- goto error;
- } else {
- avctx->bit_rate = 1000*i;
- av_log(avctx, AV_LOG_WARNING, "libfaac doesn't support the specified bitrate, using %dkbit/s instead\n", i);
- }
- }
-
- avctx->initial_padding = FAAC_DELAY_SAMPLES;
- ff_af_queue_init(avctx, &s->afq);
-
- return 0;
-error:
- Faac_encode_close(avctx);
- return ret;
-}
-
-static int Faac_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
- const AVFrame *frame, int *got_packet_ptr)
-{
- FaacAudioContext *s = avctx->priv_data;
- int bytes_written, ret;
- int num_samples = frame ? frame->nb_samples : 0;
- void *samples = frame ? frame->data[0] : NULL;
-
- if ((ret = ff_alloc_packet2(avctx, avpkt, (7 + 768) * avctx->channels, 0)) < 0)
- return ret;
-
- bytes_written = faacEncEncode(s->faac_handle, samples,
- num_samples * avctx->channels,
- avpkt->data, avpkt->size);
- if (bytes_written < 0) {
- av_log(avctx, AV_LOG_ERROR, "faacEncEncode() error\n");
- return bytes_written;
- }
-
- /* add current frame to the queue */
- if (frame) {
- if ((ret = ff_af_queue_add(&s->afq, frame)) < 0)
- return ret;
- }
-
- if (!bytes_written)
- return 0;
-
- /* Get the next frame pts/duration */
- ff_af_queue_remove(&s->afq, avctx->frame_size, &avpkt->pts,
- &avpkt->duration);
-
- avpkt->size = bytes_written;
- *got_packet_ptr = 1;
- return 0;
-}
-
-static const AVProfile profiles[] = {
- { FF_PROFILE_AAC_MAIN, "Main" },
- { FF_PROFILE_AAC_LOW, "LC" },
- { FF_PROFILE_AAC_SSR, "SSR" },
- { FF_PROFILE_AAC_LTP, "LTP" },
- { FF_PROFILE_UNKNOWN },
-};
-
-static const uint64_t faac_channel_layouts[] = {
- AV_CH_LAYOUT_MONO,
- AV_CH_LAYOUT_STEREO,
- AV_CH_LAYOUT_SURROUND,
- AV_CH_LAYOUT_4POINT0,
- AV_CH_LAYOUT_5POINT0_BACK,
- AV_CH_LAYOUT_5POINT1_BACK,
- 0
-};
-
-AVCodec ff_libfaac_encoder = {
- .name = "libfaac",
- .long_name = NULL_IF_CONFIG_SMALL("libfaac AAC (Advanced Audio Coding)"),
- .type = AVMEDIA_TYPE_AUDIO,
- .id = AV_CODEC_ID_AAC,
- .priv_data_size = sizeof(FaacAudioContext),
- .init = Faac_encode_init,
- .encode2 = Faac_encode_frame,
- .close = Faac_encode_close,
- .capabilities = AV_CODEC_CAP_SMALL_LAST_FRAME | AV_CODEC_CAP_DELAY,
- .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_S16,
- AV_SAMPLE_FMT_NONE },
- .profiles = NULL_IF_CONFIG_SMALL(profiles),
- .channel_layouts = faac_channel_layouts,
-};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 12:44:22 +0000