kode54
/
cog
2
1
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Added TrueAudio support

CQTexperiment
Chris Moeller 2013-10-10 23:51:19 -07:00
parent 570fd380f8
commit 4d7b96107b
8 changed files with 774 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
Frameworks/FFMPEG/FFMPEG.xcodeproj/project.pbxproj
View File

@ -396,6 +396,10 @@
8384910F1807CEC400E7332D /* lpc.c in Sources */ = {isa = PBXBuildFile; fileRef = 8384910E1807CEC400E7332D /* lpc.c */; };
838491111807CEF400E7332D /* sbrdsp_init.c in Sources */ = {isa = PBXBuildFile; fileRef = 838491101807CEF400E7332D /* sbrdsp_init.c */; };
838491131807D06100E7332D /* spdifdec.c in Sources */ = {isa = PBXBuildFile; fileRef = 838491121807D06100E7332D /* spdifdec.c */; };
838491151807D1D200E7332D /* tta.c in Sources */ = {isa = PBXBuildFile; fileRef = 838491141807D1D200E7332D /* tta.c */; };
838491191807D1D900E7332D /* tta.c in Sources */ = {isa = PBXBuildFile; fileRef = 838491161807D1D900E7332D /* tta.c */; };
8384911A1807D1D900E7332D /* ttadata.c in Sources */ = {isa = PBXBuildFile; fileRef = 838491171807D1D900E7332D /* ttadata.c */; };
8384911B1807D1D900E7332D /* ttadata.h in Headers */ = {isa = PBXBuildFile; fileRef = 838491181807D1D900E7332D /* ttadata.h */; };
8393B7E218052BB000913C76 /* mp3dec.c in Sources */ = {isa = PBXBuildFile; fileRef = 8393B7DF18052BB000913C76 /* mp3dec.c */; };
8393B7E318052BB000913C76 /* mpeg.c in Sources */ = {isa = PBXBuildFile; fileRef = 8393B7E018052BB000913C76 /* mpeg.c */; };
8393B7E418052BB000913C76 /* mpeg.h in Headers */ = {isa = PBXBuildFile; fileRef = 8393B7E118052BB000913C76 /* mpeg.h */; };
@ -823,6 +827,10 @@
8384910E1807CEC400E7332D /* lpc.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = lpc.c; sourceTree = "<group>"; };
838491101807CEF400E7332D /* sbrdsp_init.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = sbrdsp_init.c; sourceTree = "<group>"; };
838491121807D06100E7332D /* spdifdec.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = spdifdec.c; sourceTree = "<group>"; };
838491141807D1D200E7332D /* tta.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = tta.c; sourceTree = "<group>"; };
838491161807D1D900E7332D /* tta.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = tta.c; sourceTree = "<group>"; };
838491171807D1D900E7332D /* ttadata.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = ttadata.c; sourceTree = "<group>"; };
838491181807D1D900E7332D /* ttadata.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ttadata.h; sourceTree = "<group>"; };
8393B7DF18052BB000913C76 /* mp3dec.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = mp3dec.c; sourceTree = "<group>"; };
8393B7E018052BB000913C76 /* mpeg.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = mpeg.c; sourceTree = "<group>"; };
8393B7E118052BB000913C76 /* mpeg.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = mpeg.h; sourceTree = "<group>"; };
@ -935,6 +943,9 @@
830F0B8E17FC4FB900042E8F /* libavcodec */ = {
isa = PBXGroup;
children = (
838491161807D1D900E7332D /* tta.c */,
838491171807D1D900E7332D /* ttadata.c */,
838491181807D1D900E7332D /* ttadata.h */,
8384910C1807CEB600E7332D /* sbrdsp.c */,
838491041807CDEC00E7332D /* cbrt_tablegen.h */,
838491001807CDC000E7332D /* lpc.c */,
@ -1184,6 +1195,7 @@
830F0BAD17FC4FB900042E8F /* libavformat */ = {
isa = PBXGroup;
children = (
838491141807D1D200E7332D /* tta.c */,
838491121807D06100E7332D /* spdifdec.c */,
838490FE1807C58500E7332D /* aacdec.c */,
838490961807BC9C00E7332D /* dtshddec.c */,
@ -1445,6 +1457,7 @@
830F0C0317FC4FB900042E8F /* frame.h in Headers */,
830F0C0117FC4FB900042E8F /* dict.h in Headers */,
8393B80418052BC200913C76 /* mpegaudiodectab.h in Headers */,
8384911B1807D1D900E7332D /* ttadata.h in Headers */,
830F0BFE17FC4FB900042E8F /* channel_layout.h in Headers */,
830F0C0017FC4FB900042E8F /* cpu.h in Headers */,
830F0C0217FC4FB900042E8F /* error.h in Headers */,
@ -1728,6 +1741,7 @@
830F0DCD17FC933100042E8F /* w64.c in Sources */,
833C37D518032E7000CBA602 /* jrevdct.c in Sources */,
830F0BE217FC4FB900042E8F /* utils.c in Sources */,
838491191807D1D900E7332D /* tta.c in Sources */,
838490741807B07000E7332D /* md5.c in Sources */,
8393B80E18052BD500913C76 /* mpegaudiodsp.c in Sources */,
8384909C1807BE1300E7332D /* synth_filter.c in Sources */,
@ -1748,6 +1762,7 @@
830F0BF217FC4FB900042E8F /* avio.c in Sources */,
838490DC1807C47E00E7332D /* g723_1.c in Sources */,
830F0CE217FC7F1E00042E8F /* frame_thread_encoder.c in Sources */,
838491151807D1D200E7332D /* tta.c in Sources */,
8393B80118052BC200913C76 /* mpegaudiodec.c in Sources */,
830F0C3817FC554D00042E8F /* buffer.c in Sources */,
8384905C1807AF0100E7332D /* ac3_parser.c in Sources */,
@ -1894,6 +1909,7 @@
83BCB8E317FCA64400760340 /* timecode.c in Sources */,
8393B80B18052BC200913C76 /* mpegaudioenc.c in Sources */,
8384910D1807CEB600E7332D /* sbrdsp.c in Sources */,
8384911A1807D1D900E7332D /* ttadata.c in Sources */,
838490B91807C1C300E7332D /* truespeech.c in Sources */,
830F0D3517FC841B00042E8F /* samplefmt.c in Sources */,
830F0BEA17FC4FB900042E8F /* wmaprodec.c in Sources */,

4
Frameworks/FFMPEG/ffmpeg-minimal/config.h
View File

@ -455,7 +455,7 @@
#define CONFIG_TRUEHD_DECODER 0
#define CONFIG_TRUESPEECH_DECODER 0
#define CONFIG_TTA_ENCODER 0
#define CONFIG_TTA_DECODER 0
#define CONFIG_TTA_DECODER 1
#define CONFIG_TWINVQ_DECODER 0
#define CONFIG_VMDAUDIO_DECODER 0
#define CONFIG_VORBIS_ENCODER 0
@ -1002,7 +1002,7 @@
#define CONFIG_TMV_DEMUXER 0
#define CONFIG_TRUEHD_MUXER 0
#define CONFIG_TRUEHD_DEMUXER 0
#define CONFIG_TTA_DEMUXER 0
#define CONFIG_TTA_DEMUXER 1
#define CONFIG_TXD_DEMUXER 0
#define CONFIG_TTY_DEMUXER 0
#define CONFIG_VC1_MUXER 0

457
Frameworks/FFMPEG/ffmpeg-minimal/libavcodec/tta.c Normal file
View File

@ -0,0 +1,457 @@
/*
* TTA (The Lossless True Audio) decoder
* Copyright (c) 2006 Alex Beregszaszi
*
* 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
* TTA (The Lossless True Audio) decoder
* @see http://www.true-audio.com/
* @see http://tta.corecodec.org/
* @author Alex Beregszaszi
*/
#define BITSTREAM_READER_LE
#include <limits.h>
#include "config.h"
#include "ttadata.h"
#include "avcodec.h"
#include "get_bits.h"
#include "thread.h"
#include "unary.h"
#include "internal.h"
#include "libavutil/crc.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/internal.h"
#define FORMAT_SIMPLE 1
#define FORMAT_ENCRYPTED 2
typedef struct TTAContext {
AVClass *class;
AVCodecContext *avctx;
const AVCRC *crc_table;
int format, channels, bps;
unsigned data_length;
int frame_length, last_frame_length;
int32_t *decode_buffer;
uint8_t crc_pass[8];
uint8_t *pass;
TTAChannel *ch_ctx;
} TTAContext;
static inline void ttafilter_process(TTAFilter *c, int32_t *in)
{
register int32_t *dl = c->dl, *qm = c->qm, *dx = c->dx, sum = c->round;
if (c->error < 0) {
qm[0] -= dx[0]; qm[1] -= dx[1]; qm[2] -= dx[2]; qm[3] -= dx[3];
qm[4] -= dx[4]; qm[5] -= dx[5]; qm[6] -= dx[6]; qm[7] -= dx[7];
} else if (c->error > 0) {
qm[0] += dx[0]; qm[1] += dx[1]; qm[2] += dx[2]; qm[3] += dx[3];
qm[4] += dx[4]; qm[5] += dx[5]; qm[6] += dx[6]; qm[7] += dx[7];
}
sum += dl[0] * qm[0] + dl[1] * qm[1] + dl[2] * qm[2] + dl[3] * qm[3] +
dl[4] * qm[4] + dl[5] * qm[5] + dl[6] * qm[6] + dl[7] * qm[7];
dx[0] = dx[1]; dx[1] = dx[2]; dx[2] = dx[3]; dx[3] = dx[4];
dl[0] = dl[1]; dl[1] = dl[2]; dl[2] = dl[3]; dl[3] = dl[4];
dx[4] = ((dl[4] >> 30) | 1);
dx[5] = ((dl[5] >> 30) | 2) & ~1;
dx[6] = ((dl[6] >> 30) | 2) & ~1;
dx[7] = ((dl[7] >> 30) | 4) & ~3;
c->error = *in;
*in += (sum >> c->shift);
dl[4] = -dl[5]; dl[5] = -dl[6];
dl[6] = *in - dl[7]; dl[7] = *in;
dl[5] += dl[6]; dl[4] += dl[5];
}
static const int64_t tta_channel_layouts[7] = {
AV_CH_LAYOUT_STEREO,
AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY,
AV_CH_LAYOUT_QUAD,
0,
AV_CH_LAYOUT_5POINT1_BACK,
AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER,
AV_CH_LAYOUT_7POINT1_WIDE
};
static int tta_check_crc(TTAContext *s, const uint8_t *buf, int buf_size)
{
uint32_t crc, CRC;
CRC = AV_RL32(buf + buf_size);
crc = av_crc(s->crc_table, 0xFFFFFFFFU, buf, buf_size);
if (CRC != (crc ^ 0xFFFFFFFFU)) {
av_log(s->avctx, AV_LOG_ERROR, "CRC error\n");
return AVERROR_INVALIDDATA;
}
return 0;
}
static uint64_t tta_check_crc64(uint8_t *pass)
{
uint64_t crc = UINT64_MAX, poly = 0x42F0E1EBA9EA3693U;
uint8_t *end = pass + strlen(pass);
int i;
while (pass < end) {
crc ^= (uint64_t)*pass++ << 56;
for (i = 0; i < 8; i++)
crc = (crc << 1) ^ (poly & (((int64_t) crc) >> 63));
}
return crc ^ UINT64_MAX;
}
static int allocate_buffers(AVCodecContext *avctx)
{
TTAContext *s = avctx->priv_data;
if (s->bps < 3) {
s->decode_buffer = av_mallocz(sizeof(int32_t)*s->frame_length*s->channels);
if (!s->decode_buffer)
return AVERROR(ENOMEM);
} else
s->decode_buffer = NULL;
s->ch_ctx = av_malloc(avctx->channels * sizeof(*s->ch_ctx));
if (!s->ch_ctx) {
av_freep(&s->decode_buffer);
return AVERROR(ENOMEM);
}
return 0;
}
static av_cold int tta_decode_init(AVCodecContext * avctx)
{
TTAContext *s = avctx->priv_data;
GetBitContext gb;
int total_frames;
s->avctx = avctx;
// 30bytes includes TTA1 header
if (avctx->extradata_size < 22)
return AVERROR_INVALIDDATA;
s->crc_table = av_crc_get_table(AV_CRC_32_IEEE_LE);
init_get_bits8(&gb, avctx->extradata, avctx->extradata_size);
if (show_bits_long(&gb, 32) == AV_RL32("TTA1")) {
/* signature */
skip_bits_long(&gb, 32);
s->format = get_bits(&gb, 16);
if (s->format > 2) {
av_log(avctx, AV_LOG_ERROR, "Invalid format\n");
return AVERROR_INVALIDDATA;
}
if (s->format == FORMAT_ENCRYPTED) {
if (!s->pass) {
av_log(avctx, AV_LOG_ERROR, "Missing password for encrypted stream. Please use the -password option\n");
return AVERROR(EINVAL);
}
AV_WL64(s->crc_pass, tta_check_crc64(s->pass));
}
avctx->channels = s->channels = get_bits(&gb, 16);
if (s->channels > 1 && s->channels < 9)
avctx->channel_layout = tta_channel_layouts[s->channels-2];
avctx->bits_per_raw_sample = get_bits(&gb, 16);
s->bps = (avctx->bits_per_raw_sample + 7) / 8;
avctx->sample_rate = get_bits_long(&gb, 32);
s->data_length = get_bits_long(&gb, 32);
skip_bits_long(&gb, 32); // CRC32 of header
if (s->channels == 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n");
return AVERROR_INVALIDDATA;
} else if (avctx->sample_rate == 0) {
av_log(avctx, AV_LOG_ERROR, "Invalid samplerate\n");
return AVERROR_INVALIDDATA;
}
switch(s->bps) {
case 1: avctx->sample_fmt = AV_SAMPLE_FMT_U8; break;
case 2:
avctx->sample_fmt = AV_SAMPLE_FMT_S16;
break;
case 3:
avctx->sample_fmt = AV_SAMPLE_FMT_S32;
break;
//case 4: avctx->sample_fmt = AV_SAMPLE_FMT_S32; break;
default:
av_log(avctx, AV_LOG_ERROR, "Invalid/unsupported sample format.\n");
return AVERROR_INVALIDDATA;
}
// prevent overflow
if (avctx->sample_rate > 0x7FFFFFu) {
av_log(avctx, AV_LOG_ERROR, "sample_rate too large\n");
return AVERROR(EINVAL);
}
s->frame_length = 256 * avctx->sample_rate / 245;
s->last_frame_length = s->data_length % s->frame_length;
total_frames = s->data_length / s->frame_length +
(s->last_frame_length ? 1 : 0);
av_log(avctx, AV_LOG_DEBUG, "format: %d chans: %d bps: %d rate: %d block: %d\n",
s->format, avctx->channels, avctx->bits_per_coded_sample, avctx->sample_rate,
avctx->block_align);
av_log(avctx, AV_LOG_DEBUG, "data_length: %d frame_length: %d last: %d total: %d\n",
s->data_length, s->frame_length, s->last_frame_length, total_frames);
if(s->frame_length >= UINT_MAX / (s->channels * sizeof(int32_t))){
av_log(avctx, AV_LOG_ERROR, "frame_length too large\n");
return AVERROR_INVALIDDATA;
}
} else {
av_log(avctx, AV_LOG_ERROR, "Wrong extradata present\n");
return AVERROR_INVALIDDATA;
}
return allocate_buffers(avctx);
}
static int tta_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt)
{
AVFrame *frame = data;
ThreadFrame tframe = { .f = data };
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
TTAContext *s = avctx->priv_data;
GetBitContext gb;
int i, ret;
int cur_chan = 0, framelen = s->frame_length;
int32_t *p;
if (avctx->err_recognition & AV_EF_CRCCHECK) {
if (buf_size < 4 || tta_check_crc(s, buf, buf_size - 4))
return AVERROR_INVALIDDATA;
}
if ((ret = init_get_bits8(&gb, avpkt->data, avpkt->size)) < 0)
return ret;
/* get output buffer */
frame->nb_samples = framelen;
if ((ret = ff_thread_get_buffer(avctx, &tframe, 0)) < 0)
return ret;
// decode directly to output buffer for 24-bit sample format
if (s->bps == 3)
s->decode_buffer = (int32_t *)frame->data[0];
// init per channel states
for (i = 0; i < s->channels; i++) {
TTAFilter *filter = &s->ch_ctx[i].filter;
s->ch_ctx[i].predictor = 0;
ff_tta_filter_init(filter, ff_tta_filter_configs[s->bps-1]);
if (s->format == FORMAT_ENCRYPTED) {
int i;
for (i = 0; i < 8; i++)
filter->qm[i] = sign_extend(s->crc_pass[i], 8);
}
ff_tta_rice_init(&s->ch_ctx[i].rice, 10, 10);
}
i = 0;
for (p = s->decode_buffer; p < s->decode_buffer + (framelen * s->channels); p++) {
int32_t *predictor = &s->ch_ctx[cur_chan].predictor;
TTAFilter *filter = &s->ch_ctx[cur_chan].filter;
TTARice *rice = &s->ch_ctx[cur_chan].rice;
uint32_t unary, depth, k;
int32_t value;
unary = get_unary(&gb, 0, get_bits_left(&gb));
if (unary == 0) {
depth = 0;
k = rice->k0;
} else {
depth = 1;
k = rice->k1;
unary--;
}
if (get_bits_left(&gb) < k) {
ret = AVERROR_INVALIDDATA;
goto error;
}
if (k) {
if (k > MIN_CACHE_BITS) {
ret = AVERROR_INVALIDDATA;
goto error;
}
value = (unary << k) + get_bits(&gb, k);
} else
value = unary;
// FIXME: copy paste from original
switch (depth) {
case 1:
rice->sum1 += value - (rice->sum1 >> 4);
if (rice->k1 > 0 && rice->sum1 < ff_tta_shift_16[rice->k1])
rice->k1--;
else if(rice->sum1 > ff_tta_shift_16[rice->k1 + 1])
rice->k1++;
value += ff_tta_shift_1[rice->k0];
default:
rice->sum0 += value - (rice->sum0 >> 4);
if (rice->k0 > 0 && rice->sum0 < ff_tta_shift_16[rice->k0])
rice->k0--;
else if(rice->sum0 > ff_tta_shift_16[rice->k0 + 1])
rice->k0++;
}
// extract coded value
*p = 1 + ((value >> 1) ^ ((value & 1) - 1));
// run hybrid filter
ttafilter_process(filter, p);
// fixed order prediction
#define PRED(x, k) (int32_t)((((uint64_t)x << k) - x) >> k)
switch (s->bps) {
case 1: *p += PRED(*predictor, 4); break;
case 2:
case 3: *p += PRED(*predictor, 5); break;
case 4: *p += *predictor; break;
}
*predictor = *p;
// flip channels
if (cur_chan < (s->channels-1))
cur_chan++;
else {
// decorrelate in case of multiple channels
if (s->channels > 1) {
int32_t *r = p - 1;
for (*p += *r / 2; r > p - s->channels; r--)
*r = *(r + 1) - *r;
}
cur_chan = 0;
i++;
// check for last frame
if (i == s->last_frame_length && get_bits_left(&gb) / 8 == 4) {
frame->nb_samples = framelen = s->last_frame_length;
break;
}
}
}
align_get_bits(&gb);
if (get_bits_left(&gb) < 32) {
ret = AVERROR_INVALIDDATA;
goto error;
}
skip_bits_long(&gb, 32); // frame crc
// convert to output buffer
switch (s->bps) {
case 1: {
uint8_t *samples = (uint8_t *)frame->data[0];
for (p = s->decode_buffer; p < s->decode_buffer + (framelen * s->channels); p++)
*samples++ = *p + 0x80;
break;
}
case 2: {
int16_t *samples = (int16_t *)frame->data[0];
for (p = s->decode_buffer; p < s->decode_buffer + (framelen * s->channels); p++)
*samples++ = *p;
break;
}
case 3: {
// shift samples for 24-bit sample format
int32_t *samples = (int32_t *)frame->data[0];
for (i = 0; i < framelen * s->channels; i++)
*samples++ <<= 8;
// reset decode buffer
s->decode_buffer = NULL;
break;
}
}
*got_frame_ptr = 1;
return buf_size;
error:
// reset decode buffer
if (s->bps == 3)
s->decode_buffer = NULL;
return ret;
}
static int init_thread_copy(AVCodecContext *avctx)
{
TTAContext *s = avctx->priv_data;
s->avctx = avctx;
return allocate_buffers(avctx);
}
static av_cold int tta_decode_close(AVCodecContext *avctx) {
TTAContext *s = avctx->priv_data;
if (s->bps < 3)
av_free(s->decode_buffer);
s->decode_buffer = NULL;
av_freep(&s->ch_ctx);
return 0;
}
#define OFFSET(x) offsetof(TTAContext, x)
#define DEC (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM)
static const AVOption options[] = {
{ "password", "Set decoding password", OFFSET(pass), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, DEC },
{ NULL },
};
static const AVClass tta_decoder_class = {
.class_name = "TTA Decoder",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
AVCodec ff_tta_decoder = {
.name = "tta",
.long_name = NULL_IF_CONFIG_SMALL("TTA (True Audio)"),
.type = AVMEDIA_TYPE_AUDIO,
.id = AV_CODEC_ID_TTA,
.priv_data_size = sizeof(TTAContext),
.init = tta_decode_init,
.close = tta_decode_close,
.decode = tta_decode_frame,
.init_thread_copy = ONLY_IF_THREADS_ENABLED(init_thread_copy),
.capabilities = CODEC_CAP_DR1 | CODEC_CAP_FRAME_THREADS,
.priv_class = &tta_decoder_class,
};

52
Frameworks/FFMPEG/ffmpeg-minimal/libavcodec/ttadata.c Normal file
View File

@ -0,0 +1,52 @@
/*
* TTA (The Lossless True Audio) data
*
* 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 "ttadata.h"
const uint32_t ff_tta_shift_1[] = {
0x00000001, 0x00000002, 0x00000004, 0x00000008,
0x00000010, 0x00000020, 0x00000040, 0x00000080,
0x00000100, 0x00000200, 0x00000400, 0x00000800,
0x00001000, 0x00002000, 0x00004000, 0x00008000,
0x00010000, 0x00020000, 0x00040000, 0x00080000,
0x00100000, 0x00200000, 0x00400000, 0x00800000,
0x01000000, 0x02000000, 0x04000000, 0x08000000,
0x10000000, 0x20000000, 0x40000000, 0x80000000,
0x80000000, 0x80000000, 0x80000000, 0x80000000,
0x80000000, 0x80000000, 0x80000000, 0x80000000
};
const uint32_t * const ff_tta_shift_16 = ff_tta_shift_1 + 4;
const uint8_t ff_tta_filter_configs[] = { 10, 9, 10, 12 };
void ff_tta_rice_init(TTARice *c, uint32_t k0, uint32_t k1)
{
c->k0 = k0;
c->k1 = k1;
c->sum0 = ff_tta_shift_16[k0];
c->sum1 = ff_tta_shift_16[k1];
}
void ff_tta_filter_init(TTAFilter *c, int32_t shift) {
memset(c, 0, sizeof(TTAFilter));
c->shift = shift;
c->round = ff_tta_shift_1[shift-1];
}

50
Frameworks/FFMPEG/ffmpeg-minimal/libavcodec/ttadata.h Normal file
View File

@ -0,0 +1,50 @@
/*
* TTA (The Lossless True Audio) data
*
* 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
*/
#ifndef AVCODEC_TTADATA_H
#define AVCODEC_TTADATA_H
#include "internal.h"
#define MAX_ORDER 16
typedef struct TTAFilter {
int32_t shift, round, error;
int32_t qm[MAX_ORDER];
int32_t dx[MAX_ORDER];
int32_t dl[MAX_ORDER];
} TTAFilter;
typedef struct TTARice {
uint32_t k0, k1, sum0, sum1;
} TTARice;
typedef struct TTAChannel {
int32_t predictor;
TTAFilter filter;
TTARice rice;
} TTAChannel;
extern const uint32_t ff_tta_shift_1[];
extern const uint32_t * const ff_tta_shift_16;
extern const uint8_t ff_tta_filter_configs[];
void ff_tta_rice_init(TTARice *c, uint32_t k0, uint32_t k1);
void ff_tta_filter_init(TTAFilter *c, int32_t shift);
#endif /* AVCODEC_TTADATA_H */

193
Frameworks/FFMPEG/ffmpeg-minimal/libavformat/tta.c Normal file
View File

@ -0,0 +1,193 @@
/*
* TTA demuxer
* Copyright (c) 2006 Alex Beregszaszi
*
* 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 "libavcodec/get_bits.h"
#include "apetag.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "id3v1.h"
#include "libavutil/crc.h"
#include "libavutil/dict.h"
typedef struct {
int totalframes, currentframe;
int frame_size;
int last_frame_size;
} TTAContext;
static unsigned long tta_check_crc(unsigned long checksum, const uint8_t *buf,
unsigned int len)
{
return av_crc(av_crc_get_table(AV_CRC_32_IEEE_LE), checksum, buf, len);
}
static int tta_probe(AVProbeData *p)
{
if (AV_RL32(&p->buf[0]) == MKTAG('T', 'T', 'A', '1') &&
(AV_RL16(&p->buf[4]) == 1 || AV_RL16(&p->buf[4]) == 2) &&
AV_RL16(&p->buf[6]) > 0 &&
AV_RL16(&p->buf[8]) > 0 &&
AV_RL32(&p->buf[10]) > 0)
return AVPROBE_SCORE_EXTENSION + 30;
return 0;
}
static int tta_read_header(AVFormatContext *s)
{
TTAContext *c = s->priv_data;
AVStream *st;
int i, channels, bps, samplerate;
uint64_t framepos, start_offset;
uint32_t nb_samples, crc;
ff_id3v1_read(s);
start_offset = avio_tell(s->pb);
ffio_init_checksum(s->pb, tta_check_crc, UINT32_MAX);
if (avio_rl32(s->pb) != AV_RL32("TTA1"))
return AVERROR_INVALIDDATA;
avio_skip(s->pb, 2); // FIXME: flags
channels = avio_rl16(s->pb);
bps = avio_rl16(s->pb);
samplerate = avio_rl32(s->pb);
if(samplerate <= 0 || samplerate > 1000000){
av_log(s, AV_LOG_ERROR, "nonsense samplerate\n");
return AVERROR_INVALIDDATA;
}
nb_samples = avio_rl32(s->pb);
if (!nb_samples) {
av_log(s, AV_LOG_ERROR, "invalid number of samples\n");
return AVERROR_INVALIDDATA;
}
crc = ffio_get_checksum(s->pb) ^ UINT32_MAX;
if (crc != avio_rl32(s->pb)) {
av_log(s, AV_LOG_ERROR, "Header CRC error\n");
return AVERROR_INVALIDDATA;
}
c->frame_size = samplerate * 256 / 245;
c->last_frame_size = nb_samples % c->frame_size;
if (!c->last_frame_size)
c->last_frame_size = c->frame_size;
c->totalframes = nb_samples / c->frame_size + (c->last_frame_size < c->frame_size);
c->currentframe = 0;
if(c->totalframes >= UINT_MAX/sizeof(uint32_t) || c->totalframes <= 0){
av_log(s, AV_LOG_ERROR, "totalframes %d invalid\n", c->totalframes);
return AVERROR_INVALIDDATA;
}
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
avpriv_set_pts_info(st, 64, 1, samplerate);
st->start_time = 0;
st->duration = nb_samples;
framepos = avio_tell(s->pb) + 4*c->totalframes + 4;
st->codec->extradata_size = avio_tell(s->pb) - start_offset;
st->codec->extradata = av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
if (!st->codec->extradata) {
st->codec->extradata_size = 0;
return AVERROR(ENOMEM);
}
avio_seek(s->pb, start_offset, SEEK_SET);
avio_read(s->pb, st->codec->extradata, st->codec->extradata_size);
ffio_init_checksum(s->pb, tta_check_crc, UINT32_MAX);
for (i = 0; i < c->totalframes; i++) {
uint32_t size = avio_rl32(s->pb);
av_add_index_entry(st, framepos, i * c->frame_size, size, 0,
AVINDEX_KEYFRAME);
framepos += size;
}
crc = ffio_get_checksum(s->pb) ^ UINT32_MAX;
if (crc != avio_rl32(s->pb)) {
av_log(s, AV_LOG_ERROR, "Seek table CRC error\n");
return AVERROR_INVALIDDATA;
}
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = AV_CODEC_ID_TTA;
st->codec->channels = channels;
st->codec->sample_rate = samplerate;
st->codec->bits_per_coded_sample = bps;
if (s->pb->seekable) {
int64_t pos = avio_tell(s->pb);
ff_ape_parse_tag(s);
avio_seek(s->pb, pos, SEEK_SET);
}
return 0;
}
static int tta_read_packet(AVFormatContext *s, AVPacket *pkt)
{
TTAContext *c = s->priv_data;
AVStream *st = s->streams[0];
int size, ret;
// FIXME!
if (c->currentframe >= c->totalframes)
return AVERROR_EOF;
size = st->index_entries[c->currentframe].size;
ret = av_get_packet(s->pb, pkt, size);
pkt->dts = st->index_entries[c->currentframe++].timestamp;
pkt->duration = c->currentframe == c->totalframes ? c->last_frame_size :
c->frame_size;
return ret;
}
static int tta_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
{
TTAContext *c = s->priv_data;
AVStream *st = s->streams[stream_index];
int index = av_index_search_timestamp(st, timestamp, flags);
if (index < 0)
return -1;
if (avio_seek(s->pb, st->index_entries[index].pos, SEEK_SET) < 0)
return -1;
c->currentframe = index;
return 0;
}
AVInputFormat ff_tta_demuxer = {
.name = "tta",
.long_name = NULL_IF_CONFIG_SMALL("TTA (True Audio)"),
.priv_data_size = sizeof(TTAContext),
.read_probe = tta_probe,
.read_header = tta_read_header,
.read_packet = tta_read_packet,
.read_seek = tta_read_seek,
.extensions = "tta",
};

4
Plugins/FFMPEG/FFMPEGDecoder.m
View File

@ -310,12 +310,12 @@ int lockmgr_callback(void ** mutex, enum AVLockOp op)
+ (NSArray *)fileTypes
{
return [NSArray arrayWithObjects:@"wma", @"asf", @"xwma", @"tak", @"mp3", @"mp2", @"m2a", @"mpa", @"ape", @"ac3", @"dts", @"dtshd", @"at3", @"wav", nil];
return [NSArray arrayWithObjects:@"wma", @"asf", @"xwma", @"tak", @"mp3", @"mp2", @"m2a", @"mpa", @"ape", @"ac3", @"dts", @"dtshd", @"at3", @"wav", @"tta", nil];
}
+ (NSArray *)mimeTypes
{
return [NSArray arrayWithObjects:@"application/wma", @"application/x-wma", @"audio/x-wma", @"audio/x-ms-wma", @"audio/x-tak", @"audio/mpeg", @"audio/x-mp3", @"audio/x-mp2", @"audio/x-ape", @"audio/x-ac3", @"audio/x-dts", @"audio/x-dtshd", @"audio/x-at3", @"audio/wav", nil];
return [NSArray arrayWithObjects:@"application/wma", @"application/x-wma", @"audio/x-wma", @"audio/x-ms-wma", @"audio/x-tak", @"audio/mpeg", @"audio/x-mp3", @"audio/x-mp2", @"audio/x-ape", @"audio/x-ac3", @"audio/x-dts", @"audio/x-dtshd", @"audio/x-at3", @"audio/wav", @"tta", nil];
}

4
Plugins/TagLib/TagLibMetadataReader.m
View File

@ -130,12 +130,12 @@
+ (NSArray *)fileTypes
{
//May be a way to get a list of supported formats
return [NSArray arrayWithObjects:@"ape", @"asf", @"wma", @"ogg", @"opus", @"mpc", @"flac", @"m4a", @"mp3", @"tak", @"ac3", @"apl", @"dts", @"dtshd", nil];
return [NSArray arrayWithObjects:@"ape", @"asf", @"wma", @"ogg", @"opus", @"mpc", @"flac", @"m4a", @"mp3", @"tak", @"ac3", @"apl", @"dts", @"dtshd", @"tta", nil];
}
+ (NSArray *)mimeTypes
{
return [NSArray arrayWithObjects:@"audio/x-ape", @"audio/x-ms-wma", @"application/ogg", @"application/x-ogg", @"audio/x-vorbis+ogg", @"audio/x-musepack", @"audio/x-flac", @"audio/x-m4a", @"audio/mpeg", @"audio/x-mp3", @"audio/x-tak", @"audio/x-ac3", @"audio/x-apl", @"audio/x-dts", @"audio/x-dtshd", nil];
return [NSArray arrayWithObjects:@"audio/x-ape", @"audio/x-ms-wma", @"application/ogg", @"application/x-ogg", @"audio/x-vorbis+ogg", @"audio/x-musepack", @"audio/x-flac", @"audio/x-m4a", @"audio/mpeg", @"audio/x-mp3", @"audio/x-tak", @"audio/x-ac3", @"audio/x-apl", @"audio/x-dts", @"audio/x-dtshd", @"audio/x-tta", nil];
}
@end