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-rw-r--r--libavcodec/audiotoolboxdec.c625
1 files changed, 625 insertions, 0 deletions
diff --git a/libavcodec/audiotoolboxdec.c b/libavcodec/audiotoolboxdec.c
new file mode 100644
index 0000000000..1097668437
--- /dev/null
+++ b/libavcodec/audiotoolboxdec.c
@@ -0,0 +1,625 @@
+/*
+ * Audio Toolbox system codecs
+ *
+ * copyright (c) 2016 Rodger Combs
+ *
+ * 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
+ */
+
+#include <AudioToolbox/AudioToolbox.h>
+
+#include "config.h"
+#include "avcodec.h"
+#include "ac3_parser.h"
+#include "bytestream.h"
+#include "internal.h"
+#include "mpegaudiodecheader.h"
+#include "libavutil/avassert.h"
+#include "libavutil/opt.h"
+#include "libavutil/log.h"
+
+#ifndef __MAC_10_11
+#define kAudioFormatEnhancedAC3 'ec-3'
+#endif
+
+typedef struct ATDecodeContext {
+ AVClass *av_class;
+
+ AudioConverterRef converter;
+ AudioStreamPacketDescription pkt_desc;
+ AVPacket in_pkt;
+ AVPacket new_in_pkt;
+ AVBSFContext *bsf;
+ char *decoded_data;
+ int channel_map[64];
+
+ uint8_t *extradata;
+ int extradata_size;
+
+ int64_t last_pts;
+ int eof;
+} ATDecodeContext;
+
+static UInt32 ffat_get_format_id(enum AVCodecID codec, int profile)
+{
+ switch (codec) {
+ case AV_CODEC_ID_AAC:
+ return kAudioFormatMPEG4AAC;
+ case AV_CODEC_ID_AC3:
+ return kAudioFormatAC3;
+ case AV_CODEC_ID_ADPCM_IMA_QT:
+ return kAudioFormatAppleIMA4;
+ case AV_CODEC_ID_ALAC:
+ return kAudioFormatAppleLossless;
+ case AV_CODEC_ID_AMR_NB:
+ return kAudioFormatAMR;
+ case AV_CODEC_ID_EAC3:
+ return kAudioFormatEnhancedAC3;
+ case AV_CODEC_ID_GSM_MS:
+ return kAudioFormatMicrosoftGSM;
+ case AV_CODEC_ID_ILBC:
+ return kAudioFormatiLBC;
+ case AV_CODEC_ID_MP1:
+ return kAudioFormatMPEGLayer1;
+ case AV_CODEC_ID_MP2:
+ return kAudioFormatMPEGLayer2;
+ case AV_CODEC_ID_MP3:
+ return kAudioFormatMPEGLayer3;
+ case AV_CODEC_ID_PCM_ALAW:
+ return kAudioFormatALaw;
+ case AV_CODEC_ID_PCM_MULAW:
+ return kAudioFormatULaw;
+ case AV_CODEC_ID_QDMC:
+ return kAudioFormatQDesign;
+ case AV_CODEC_ID_QDM2:
+ return kAudioFormatQDesign2;
+ default:
+ av_assert0(!"Invalid codec ID!");
+ return 0;
+ }
+}
+
+static int ffat_get_channel_id(AudioChannelLabel label)
+{
+ if (label == 0)
+ return -1;
+ else if (label <= kAudioChannelLabel_LFEScreen)
+ return label - 1;
+ else if (label <= kAudioChannelLabel_RightSurround)
+ return label + 4;
+ else if (label <= kAudioChannelLabel_CenterSurround)
+ return label + 1;
+ else if (label <= kAudioChannelLabel_RightSurroundDirect)
+ return label + 23;
+ else if (label <= kAudioChannelLabel_TopBackRight)
+ return label - 1;
+ else if (label < kAudioChannelLabel_RearSurroundLeft)
+ return -1;
+ else if (label <= kAudioChannelLabel_RearSurroundRight)
+ return label - 29;
+ else if (label <= kAudioChannelLabel_RightWide)
+ return label - 4;
+ else if (label == kAudioChannelLabel_LFE2)
+ return ff_ctzll(AV_CH_LOW_FREQUENCY_2);
+ else if (label == kAudioChannelLabel_Mono)
+ return ff_ctzll(AV_CH_FRONT_CENTER);
+ else
+ return -1;
+}
+
+static int ffat_compare_channel_descriptions(const void* a, const void* b)
+{
+ const AudioChannelDescription* da = a;
+ const AudioChannelDescription* db = b;
+ return ffat_get_channel_id(da->mChannelLabel) - ffat_get_channel_id(db->mChannelLabel);
+}
+
+static AudioChannelLayout *ffat_convert_layout(AudioChannelLayout *layout, UInt32* size)
+{
+ AudioChannelLayoutTag tag = layout->mChannelLayoutTag;
+ AudioChannelLayout *new_layout;
+ if (tag == kAudioChannelLayoutTag_UseChannelDescriptions)
+ return layout;
+ else if (tag == kAudioChannelLayoutTag_UseChannelBitmap)
+ AudioFormatGetPropertyInfo(kAudioFormatProperty_ChannelLayoutForBitmap,
+ sizeof(UInt32), &layout->mChannelBitmap, size);
+ else
+ AudioFormatGetPropertyInfo(kAudioFormatProperty_ChannelLayoutForTag,
+ sizeof(AudioChannelLayoutTag), &tag, size);
+ new_layout = av_malloc(*size);
+ if (!new_layout) {
+ av_free(layout);
+ return NULL;
+ }
+ if (tag == kAudioChannelLayoutTag_UseChannelBitmap)
+ AudioFormatGetProperty(kAudioFormatProperty_ChannelLayoutForBitmap,
+ sizeof(UInt32), &layout->mChannelBitmap, size, new_layout);
+ else
+ AudioFormatGetProperty(kAudioFormatProperty_ChannelLayoutForTag,
+ sizeof(AudioChannelLayoutTag), &tag, size, new_layout);
+ new_layout->mChannelLayoutTag = kAudioChannelLayoutTag_UseChannelDescriptions;
+ av_free(layout);
+ return new_layout;
+}
+
+static int ffat_update_ctx(AVCodecContext *avctx)
+{
+ ATDecodeContext *at = avctx->priv_data;
+ AudioStreamBasicDescription format;
+ UInt32 size = sizeof(format);
+ if (!AudioConverterGetProperty(at->converter,
+ kAudioConverterCurrentInputStreamDescription,
+ &size, &format)) {
+ if (format.mSampleRate)
+ avctx->sample_rate = format.mSampleRate;
+ avctx->channels = format.mChannelsPerFrame;
+ avctx->channel_layout = av_get_default_channel_layout(avctx->channels);
+ avctx->frame_size = format.mFramesPerPacket;
+ }
+
+ if (!AudioConverterGetProperty(at->converter,
+ kAudioConverterCurrentOutputStreamDescription,
+ &size, &format)) {
+ format.mSampleRate = avctx->sample_rate;
+ format.mChannelsPerFrame = avctx->channels;
+ AudioConverterSetProperty(at->converter,
+ kAudioConverterCurrentOutputStreamDescription,
+ size, &format);
+ }
+
+ if (!AudioConverterGetPropertyInfo(at->converter, kAudioConverterOutputChannelLayout,
+ &size, NULL) && size) {
+ AudioChannelLayout *layout = av_malloc(size);
+ uint64_t layout_mask = 0;
+ int i;
+ if (!layout)
+ return AVERROR(ENOMEM);
+ AudioConverterGetProperty(at->converter, kAudioConverterOutputChannelLayout,
+ &size, layout);
+ if (!(layout = ffat_convert_layout(layout, &size)))
+ return AVERROR(ENOMEM);
+ for (i = 0; i < layout->mNumberChannelDescriptions; i++) {
+ int id = ffat_get_channel_id(layout->mChannelDescriptions[i].mChannelLabel);
+ if (id < 0)
+ goto done;
+ if (layout_mask & (1 << id))
+ goto done;
+ layout_mask |= 1 << id;
+ layout->mChannelDescriptions[i].mChannelFlags = i; // Abusing flags as index
+ }
+ avctx->channel_layout = layout_mask;
+ qsort(layout->mChannelDescriptions, layout->mNumberChannelDescriptions,
+ sizeof(AudioChannelDescription), &ffat_compare_channel_descriptions);
+ for (i = 0; i < layout->mNumberChannelDescriptions; i++)
+ at->channel_map[i] = layout->mChannelDescriptions[i].mChannelFlags;
+done:
+ av_free(layout);
+ }
+
+ if (!avctx->frame_size)
+ avctx->frame_size = 2048;
+
+ return 0;
+}
+
+static void put_descr(PutByteContext *pb, int tag, unsigned int size)
+{
+ int i = 3;
+ bytestream2_put_byte(pb, tag);
+ for (; i > 0; i--)
+ bytestream2_put_byte(pb, (size >> (7 * i)) | 0x80);
+ bytestream2_put_byte(pb, size & 0x7F);
+}
+
+static uint8_t* ffat_get_magic_cookie(AVCodecContext *avctx, UInt32 *cookie_size)
+{
+ ATDecodeContext *at = avctx->priv_data;
+ if (avctx->codec_id == AV_CODEC_ID_AAC) {
+ char *extradata;
+ PutByteContext pb;
+ *cookie_size = 5 + 3 + 5+13 + 5+at->extradata_size;
+ if (!(extradata = av_malloc(*cookie_size)))
+ return NULL;
+
+ bytestream2_init_writer(&pb, extradata, *cookie_size);
+
+ // ES descriptor
+ put_descr(&pb, 0x03, 3 + 5+13 + 5+at->extradata_size);
+ bytestream2_put_be16(&pb, 0);
+ bytestream2_put_byte(&pb, 0x00); // flags (= no flags)
+
+ // DecoderConfig descriptor
+ put_descr(&pb, 0x04, 13 + 5+at->extradata_size);
+
+ // Object type indication
+ bytestream2_put_byte(&pb, 0x40);
+
+ bytestream2_put_byte(&pb, 0x15); // flags (= Audiostream)
+
+ bytestream2_put_be24(&pb, 0); // Buffersize DB
+
+ bytestream2_put_be32(&pb, 0); // maxbitrate
+ bytestream2_put_be32(&pb, 0); // avgbitrate
+
+ // DecoderSpecific info descriptor
+ put_descr(&pb, 0x05, at->extradata_size);
+ bytestream2_put_buffer(&pb, at->extradata, at->extradata_size);
+ return extradata;
+ } else {
+ *cookie_size = at->extradata_size;
+ return at->extradata;
+ }
+}
+
+static av_cold int ffat_usable_extradata(AVCodecContext *avctx)
+{
+ ATDecodeContext *at = avctx->priv_data;
+ return at->extradata_size &&
+ (avctx->codec_id == AV_CODEC_ID_ALAC ||
+ avctx->codec_id == AV_CODEC_ID_QDM2 ||
+ avctx->codec_id == AV_CODEC_ID_QDMC ||
+ avctx->codec_id == AV_CODEC_ID_AAC);
+}
+
+static int ffat_set_extradata(AVCodecContext *avctx)
+{
+ ATDecodeContext *at = avctx->priv_data;
+ if (ffat_usable_extradata(avctx)) {
+ OSStatus status;
+ UInt32 cookie_size;
+ uint8_t *cookie = ffat_get_magic_cookie(avctx, &cookie_size);
+ if (!cookie)
+ return AVERROR(ENOMEM);
+
+ status = AudioConverterSetProperty(at->converter,
+ kAudioConverterDecompressionMagicCookie,
+ cookie_size, cookie);
+ if (status != 0)
+ av_log(avctx, AV_LOG_WARNING, "AudioToolbox cookie error: %i\n", (int)status);
+
+ if (cookie != at->extradata)
+ av_free(cookie);
+ }
+ return 0;
+}
+
+static av_cold int ffat_create_decoder(AVCodecContext *avctx, AVPacket *pkt)
+{
+ ATDecodeContext *at = avctx->priv_data;
+ OSStatus status;
+ int i;
+
+ enum AVSampleFormat sample_fmt = (avctx->bits_per_raw_sample == 32) ?
+ AV_SAMPLE_FMT_S32 : AV_SAMPLE_FMT_S16;
+
+ AudioStreamBasicDescription in_format = {
+ .mFormatID = ffat_get_format_id(avctx->codec_id, avctx->profile),
+ .mBytesPerPacket = (avctx->codec_id == AV_CODEC_ID_ILBC) ? avctx->block_align : 0,
+ };
+ AudioStreamBasicDescription out_format = {
+ .mFormatID = kAudioFormatLinearPCM,
+ .mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked,
+ .mFramesPerPacket = 1,
+ .mBitsPerChannel = av_get_bytes_per_sample(sample_fmt) * 8,
+ };
+
+ avctx->sample_fmt = sample_fmt;
+
+ if (ffat_usable_extradata(avctx)) {
+ UInt32 format_size = sizeof(in_format);
+ UInt32 cookie_size;
+ uint8_t *cookie = ffat_get_magic_cookie(avctx, &cookie_size);
+ if (!cookie)
+ return AVERROR(ENOMEM);
+ status = AudioFormatGetProperty(kAudioFormatProperty_FormatInfo,
+ cookie_size, cookie, &format_size, &in_format);
+ if (cookie != at->extradata)
+ av_free(cookie);
+ if (status != 0) {
+ av_log(avctx, AV_LOG_ERROR, "AudioToolbox header-parse error: %i\n", (int)status);
+ return AVERROR_UNKNOWN;
+ }
+#if CONFIG_MP1_AT_DECODER || CONFIG_MP2_AT_DECODER || CONFIG_MP3_AT_DECODER
+ } else if (pkt && pkt->size >= 4 &&
+ (avctx->codec_id == AV_CODEC_ID_MP1 ||
+ avctx->codec_id == AV_CODEC_ID_MP2 ||
+ avctx->codec_id == AV_CODEC_ID_MP3)) {
+ enum AVCodecID codec_id;
+ int bit_rate;
+ if (ff_mpa_decode_header(AV_RB32(pkt->data), &avctx->sample_rate,
+ &in_format.mChannelsPerFrame, &avctx->frame_size,
+ &bit_rate, &codec_id) < 0)
+ return AVERROR_INVALIDDATA;
+ avctx->bit_rate = bit_rate;
+ in_format.mSampleRate = avctx->sample_rate;
+#endif
+#if CONFIG_AC3_AT_DECODER || CONFIG_EAC3_AT_DECODER
+ } else if (pkt && pkt->size >= 7 &&
+ (avctx->codec_id == AV_CODEC_ID_AC3 ||
+ avctx->codec_id == AV_CODEC_ID_EAC3)) {
+ AC3HeaderInfo hdr, *phdr = &hdr;
+ GetBitContext gbc;
+ init_get_bits(&gbc, pkt->data, pkt->size);
+ if (avpriv_ac3_parse_header(&gbc, &phdr) < 0)
+ return AVERROR_INVALIDDATA;
+ in_format.mSampleRate = hdr.sample_rate;
+ in_format.mChannelsPerFrame = hdr.channels;
+ avctx->frame_size = hdr.num_blocks * 256;
+ avctx->bit_rate = hdr.bit_rate;
+#endif
+ } else {
+ in_format.mSampleRate = avctx->sample_rate ? avctx->sample_rate : 44100;
+ in_format.mChannelsPerFrame = avctx->channels ? avctx->channels : 1;
+ }
+
+ avctx->sample_rate = out_format.mSampleRate = in_format.mSampleRate;
+ avctx->channels = out_format.mChannelsPerFrame = in_format.mChannelsPerFrame;
+
+ if (avctx->codec_id == AV_CODEC_ID_ADPCM_IMA_QT)
+ in_format.mFramesPerPacket = 64;
+
+ status = AudioConverterNew(&in_format, &out_format, &at->converter);
+
+ if (status != 0) {
+ av_log(avctx, AV_LOG_ERROR, "AudioToolbox init error: %i\n", (int)status);
+ return AVERROR_UNKNOWN;
+ }
+
+ if ((status = ffat_set_extradata(avctx)) < 0)
+ return status;
+
+ for (i = 0; i < (sizeof(at->channel_map) / sizeof(at->channel_map[0])); i++)
+ at->channel_map[i] = i;
+
+ ffat_update_ctx(avctx);
+
+ if(!(at->decoded_data = av_malloc(av_get_bytes_per_sample(avctx->sample_fmt)
+ * avctx->frame_size * avctx->channels)))
+ return AVERROR(ENOMEM);
+
+ at->last_pts = AV_NOPTS_VALUE;
+
+ return 0;
+}
+
+static av_cold int ffat_init_decoder(AVCodecContext *avctx)
+{
+ ATDecodeContext *at = avctx->priv_data;
+ at->extradata = avctx->extradata;
+ at->extradata_size = avctx->extradata_size;
+
+ if ((avctx->channels && avctx->sample_rate) || ffat_usable_extradata(avctx))
+ return ffat_create_decoder(avctx, NULL);
+ else
+ return 0;
+}
+
+static OSStatus ffat_decode_callback(AudioConverterRef converter, UInt32 *nb_packets,
+ AudioBufferList *data,
+ AudioStreamPacketDescription **packets,
+ void *inctx)
+{
+ AVCodecContext *avctx = inctx;
+ ATDecodeContext *at = avctx->priv_data;
+
+ if (at->eof) {
+ *nb_packets = 0;
+ if (packets) {
+ *packets = &at->pkt_desc;
+ at->pkt_desc.mDataByteSize = 0;
+ }
+ return 0;
+ }
+
+ av_packet_unref(&at->in_pkt);
+ av_packet_move_ref(&at->in_pkt, &at->new_in_pkt);
+
+ if (!at->in_pkt.data) {
+ *nb_packets = 0;
+ return 1;
+ }
+
+ data->mNumberBuffers = 1;
+ data->mBuffers[0].mNumberChannels = 0;
+ data->mBuffers[0].mDataByteSize = at->in_pkt.size;
+ data->mBuffers[0].mData = at->in_pkt.data;
+ *nb_packets = 1;
+
+ if (packets) {
+ *packets = &at->pkt_desc;
+ at->pkt_desc.mDataByteSize = at->in_pkt.size;
+ }
+
+ return 0;
+}
+
+#define COPY_SAMPLES(type) \
+ type *in_ptr = (type*)at->decoded_data; \
+ type *end_ptr = in_ptr + frame->nb_samples * avctx->channels; \
+ type *out_ptr = (type*)frame->data[0]; \
+ for (; in_ptr < end_ptr; in_ptr += avctx->channels, out_ptr += avctx->channels) { \
+ int c; \
+ for (c = 0; c < avctx->channels; c++) \
+ out_ptr[c] = in_ptr[at->channel_map[c]]; \
+ }
+
+static void ffat_copy_samples(AVCodecContext *avctx, AVFrame *frame)
+{
+ ATDecodeContext *at = avctx->priv_data;
+ if (avctx->sample_fmt == AV_SAMPLE_FMT_S32) {
+ COPY_SAMPLES(int32_t);
+ } else {
+ COPY_SAMPLES(int16_t);
+ }
+}
+
+static int ffat_decode(AVCodecContext *avctx, void *data,
+ int *got_frame_ptr, AVPacket *avpkt)
+{
+ ATDecodeContext *at = avctx->priv_data;
+ AVFrame *frame = data;
+ int pkt_size = avpkt->size;
+ AVPacket filtered_packet = {0};
+ OSStatus ret;
+ AudioBufferList out_buffers;
+
+ if (avctx->codec_id == AV_CODEC_ID_AAC && avpkt->size > 2 &&
+ (AV_RB16(avpkt->data) & 0xfff0) == 0xfff0) {
+ AVPacket filter_pkt = {0};
+ if (!at->bsf) {
+ const AVBitStreamFilter *bsf = av_bsf_get_by_name("aac_adtstoasc");
+ if(!bsf)
+ return AVERROR_BSF_NOT_FOUND;
+ if ((ret = av_bsf_alloc(bsf, &at->bsf)))
+ return ret;
+ if (((ret = avcodec_parameters_from_context(at->bsf->par_in, avctx)) < 0) ||
+ ((ret = av_bsf_init(at->bsf)) < 0)) {
+ av_bsf_free(&at->bsf);
+ return ret;
+ }
+ }
+
+ if ((ret = av_packet_ref(&filter_pkt, avpkt)) < 0)
+ return ret;
+
+ if ((ret = av_bsf_send_packet(at->bsf, &filter_pkt)) < 0) {
+ av_packet_unref(&filter_pkt);
+ return ret;
+ }
+
+ if ((ret = av_bsf_receive_packet(at->bsf, &filtered_packet)) < 0)
+ return ret;
+
+ at->extradata = at->bsf->par_out->extradata;
+ at->extradata_size = at->bsf->par_out->extradata_size;
+
+ avpkt = &filtered_packet;
+ }
+
+ if (!at->converter) {
+ if ((ret = ffat_create_decoder(avctx, avpkt)) < 0) {
+ av_packet_unref(&filtered_packet);
+ return ret;
+ }
+ }
+
+ out_buffers = (AudioBufferList){
+ .mNumberBuffers = 1,
+ .mBuffers = {
+ {
+ .mNumberChannels = avctx->channels,
+ .mDataByteSize = av_get_bytes_per_sample(avctx->sample_fmt) * avctx->frame_size
+ * avctx->channels,
+ }
+ }
+ };
+
+ av_packet_unref(&at->new_in_pkt);
+
+ if (avpkt->size) {
+ if (filtered_packet.data) {
+ at->new_in_pkt = filtered_packet;
+ } else if ((ret = av_packet_ref(&at->new_in_pkt, avpkt)) < 0) {
+ return ret;
+ }
+ } else {
+ at->eof = 1;
+ }
+
+ frame->sample_rate = avctx->sample_rate;
+
+ frame->nb_samples = avctx->frame_size;
+
+ out_buffers.mBuffers[0].mData = at->decoded_data;
+
+ ret = AudioConverterFillComplexBuffer(at->converter, ffat_decode_callback, avctx,
+ &frame->nb_samples, &out_buffers, NULL);
+ if ((!ret || ret == 1) && frame->nb_samples) {
+ if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
+ return ret;
+ ffat_copy_samples(avctx, frame);
+ *got_frame_ptr = 1;
+ if (at->last_pts != AV_NOPTS_VALUE) {
+ frame->pkt_pts = at->last_pts;
+ at->last_pts = avpkt->pts;
+ }
+ } else if (ret && ret != 1) {
+ av_log(avctx, AV_LOG_WARNING, "Decode error: %i\n", ret);
+ } else {
+ at->last_pts = avpkt->pts;
+ }
+
+ return pkt_size;
+}
+
+static av_cold void ffat_decode_flush(AVCodecContext *avctx)
+{
+ ATDecodeContext *at = avctx->priv_data;
+ AudioConverterReset(at->converter);
+ av_packet_unref(&at->new_in_pkt);
+ av_packet_unref(&at->in_pkt);
+}
+
+static av_cold int ffat_close_decoder(AVCodecContext *avctx)
+{
+ ATDecodeContext *at = avctx->priv_data;
+ AudioConverterDispose(at->converter);
+ av_bsf_free(&at->bsf);
+ av_packet_unref(&at->new_in_pkt);
+ av_packet_unref(&at->in_pkt);
+ av_free(at->decoded_data);
+ return 0;
+}
+
+#define FFAT_DEC_CLASS(NAME) \
+ static const AVClass ffat_##NAME##_dec_class = { \
+ .class_name = "at_" #NAME "_dec", \
+ .version = LIBAVUTIL_VERSION_INT, \
+ };
+
+#define FFAT_DEC(NAME, ID) \
+ FFAT_DEC_CLASS(NAME) \
+ AVCodec ff_##NAME##_at_decoder = { \
+ .name = #NAME "_at", \
+ .long_name = NULL_IF_CONFIG_SMALL(#NAME " (AudioToolbox)"), \
+ .type = AVMEDIA_TYPE_AUDIO, \
+ .id = ID, \
+ .priv_data_size = sizeof(ATDecodeContext), \
+ .init = ffat_init_decoder, \
+ .close = ffat_close_decoder, \
+ .decode = ffat_decode, \
+ .flush = ffat_decode_flush, \
+ .priv_class = &ffat_##NAME##_dec_class, \
+ .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY, \
+ .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE, \
+ };
+
+FFAT_DEC(aac, AV_CODEC_ID_AAC)
+FFAT_DEC(ac3, AV_CODEC_ID_AC3)
+FFAT_DEC(adpcm_ima_qt, AV_CODEC_ID_ADPCM_IMA_QT)
+FFAT_DEC(alac, AV_CODEC_ID_ALAC)
+FFAT_DEC(amr_nb, AV_CODEC_ID_AMR_NB)
+FFAT_DEC(eac3, AV_CODEC_ID_EAC3)
+FFAT_DEC(gsm_ms, AV_CODEC_ID_GSM_MS)
+FFAT_DEC(ilbc, AV_CODEC_ID_ILBC)
+FFAT_DEC(mp1, AV_CODEC_ID_MP1)
+FFAT_DEC(mp2, AV_CODEC_ID_MP2)
+FFAT_DEC(mp3, AV_CODEC_ID_MP3)
+FFAT_DEC(pcm_alaw, AV_CODEC_ID_PCM_ALAW)
+FFAT_DEC(pcm_mulaw, AV_CODEC_ID_PCM_MULAW)
+FFAT_DEC(qdmc, AV_CODEC_ID_QDMC)
+FFAT_DEC(qdm2, AV_CODEC_ID_QDM2)