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|
/*
DeaDBeeF - ultimate music player for GNU/Linux systems with X11
Copyright (C) 2009-2011 Alexey Yakovenko <waker@users.sourceforge.net>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <neaacdec.h>
#ifdef HAVE_CONFIG_H
#include "../../config.h"
#endif
#include <stdlib.h>
#include <math.h>
#include "../../deadbeef.h"
#include "aac_parser.h"
#ifdef USE_MP4FF
#include "mp4ff/mp4ff.h"
#else
#warning linking mp4v2 to faad2 is illegal
#include <mp4v2/mp4v2.h>
#endif
#define min(x,y) ((x)<(y)?(x):(y))
#define max(x,y) ((x)>(y)?(x):(y))
//#define trace(...) { fprintf(stderr, __VA_ARGS__); }
#define trace(fmt,...)
static DB_decoder_t plugin;
static DB_functions_t *deadbeef;
#define AAC_BUFFER_SIZE 50000
#define OUT_BUFFER_SIZE 100000
#ifdef USE_MP4FF
#define MP4FILE mp4ff_t *
#define MP4FILE_CB mp4ff_callback_t
#else
#define MP4FILE MP4FileHandle
#define MP4FILE_CB MP4FileProvider
#endif
// aac channel mapping
// 0: Defined in AOT Specifc Config
// 1: 1 channel: front-center
// 2: 2 channels: front-left, front-right
// 3: 3 channels: front-center, front-left, front-right
// 4: 4 channels: front-center, front-left, front-right, back-center
// 5: 5 channels: front-center, front-left, front-right, back-left, back-right
// 6: 6 channels: front-center, front-left, front-right, back-left, back-right, LFE-channel
// 7: 8 channels: front-center, front-left, front-right, side-left, side-right, back-left, back-right, LFE-channel
// 8-15: Reserved
typedef struct {
DB_fileinfo_t info;
NeAACDecHandle dec;
DB_FILE *file;
MP4FILE mp4file;
MP4FILE_CB mp4reader;
NeAACDecFrameInfo frame_info; // last frame info
int32_t timescale;
uint32_t maxSampleSize;
int mp4track;
int mp4samples;
int mp4sample;
int mp4framesize;
int skipsamples;
int startsample;
int endsample;
int currentsample;
char buffer[AAC_BUFFER_SIZE];
int remaining;
char out_buffer[OUT_BUFFER_SIZE];
int out_remaining;
int num_errors;
char *samplebuffer;
int remap[10];
int noremap;
} aac_info_t;
// allocate codec control structure
static DB_fileinfo_t *
aac_open (uint32_t hints) {
DB_fileinfo_t *_info = malloc (sizeof (aac_info_t));
aac_info_t *info = (aac_info_t *)_info;
memset (info, 0, sizeof (aac_info_t));
return _info;
}
#ifdef USE_MP4FF
static uint32_t
aac_fs_read (void *user_data, void *buffer, uint32_t length) {
// trace ("aac_fs_read %d\n", length);
DB_FILE *fp = (DB_FILE *)user_data;
return deadbeef->fread (buffer, 1, length, fp);
}
static uint32_t
aac_fs_seek (void *user_data, uint64_t position) {
// trace ("aac_fs_seek\n");
DB_FILE *fp = (DB_FILE *)user_data;
return deadbeef->fseek (fp, position, SEEK_SET);
}
#else
static void *
aac_fs_open (const char *fname, MP4FileMode mode) {
return deadbeef->fopen (fname);
}
static int
aac_fs_seek (void* handle, int64_t pos) {
return deadbeef->fseek ((DB_FILE*)handle, pos, SEEK_SET);
}
static int
aac_fs_read (void *handle, void *buffer, int64_t length, int64_t *nin, int64_t maxChunkSize) {
if (deadbeef->fread (buffer, length, 1, (DB_FILE*)handle) != 1) {
return 1;
}
*nin = length;
return 0;
}
static int
aac_fs_close (void *handle) {
deadbeef->fclose ((DB_FILE*)handle);
return 1;
}
#endif
static int
parse_aac_stream(DB_FILE *fp, int *psamplerate, int *pchannels, float *pduration, int *ptotalsamples)
{
size_t framepos = deadbeef->ftell (fp);
size_t initfpos = framepos;
int firstframepos = -1;
int fsize = -1;
int offs = 0;
if (!fp->vfs->is_streaming ()) {
int skip = deadbeef->junk_get_leading_size (fp);
if (skip >= 0) {
deadbeef->fseek (fp, skip, SEEK_SET);
}
int offs = deadbeef->ftell (fp);
fsize = deadbeef->fgetlength (fp);
if (skip > 0) {
fsize -= skip;
}
}
uint8_t buf[ADTS_HEADER_SIZE*8];
int nsamples = 0;
int stream_sr = 0;
int stream_ch = 0;
int eof = 0;
int bufsize = 0;
int remaining = 0;
int frame = 0;
int scanframes = 1000;
if (fp->vfs->is_streaming ()) {
scanframes = 1;
}
do {
int size = sizeof (buf) - bufsize;
if (deadbeef->fread (buf + bufsize, 1, size, fp) != size) {
trace ("parse_aac_stream: eof\n");
break;
}
bufsize = sizeof (buf);
int channels, samplerate, bitrate, samples;
size = aac_sync (buf, &channels, &samplerate, &bitrate, &samples);
if (size == 0) {
memmove (buf, buf+1, sizeof (buf)-1);
bufsize--;
// trace ("aac_sync fail, framepos: %d\n", framepos);
if (deadbeef->ftell (fp) - initfpos > 2000) { // how many is enough to make sure?
break;
}
framepos++;
continue;
}
else {
trace ("aac: frame #%d sync: %dch %d %d %d %d\n", frame, channels, samplerate, bitrate, samples, size);
frame++;
nsamples += samples;
if (!stream_sr) {
stream_sr = samplerate;
}
if (!stream_ch) {
stream_ch = channels;
}
if (firstframepos == -1) {
firstframepos = framepos;
}
// if (fp->vfs->streaming) {
// *psamplerate = stream_sr;
// *pchannels = stream_ch;
// }
framepos += size;
if (deadbeef->fseek (fp, size-(int)sizeof(buf), SEEK_CUR) == -1) {
trace ("parse_aac_stream: invalid seek %d\n", size-sizeof(buf));
break;
}
bufsize = 0;
}
} while (ptotalsamples || frame < scanframes);
if (!frame || !stream_sr || !nsamples) {
return -1;
}
*psamplerate = stream_sr;
*pchannels = stream_ch;
if (ptotalsamples) {
*ptotalsamples = nsamples;
*pduration = nsamples / (float)stream_sr;
trace ("aac: duration=%f (%d samples @ %d Hz), fsize=%d, nframes=%d\n", *pduration, *ptotalsamples, stream_sr, fsize, frame);
}
else {
int pos = deadbeef->ftell (fp);
int totalsamples = (double)fsize / (pos-offs) * nsamples;
*pduration = totalsamples / (float)stream_sr;
trace ("aac: duration=%f (%d samples @ %d Hz), fsize=%d\n", *pduration, totalsamples, stream_sr, fsize);
}
if (*psamplerate <= 24000) {
*psamplerate *= 2;
if (ptotalsamples) {
*ptotalsamples *= 2;
}
}
return firstframepos;
}
// returns -1 for error, 0 for mp4, 1 for aac
int
aac_probe (DB_FILE *fp, const char *fname, MP4FILE_CB *cb, float *duration, int *samplerate, int *channels, int *totalsamples, int *mp4track, MP4FILE *pmp4) {
// try mp4
if (mp4track) {
*mp4track = -1;
}
if (*pmp4) {
*pmp4 = NULL;
}
*duration = -1;
#ifdef USE_MP4FF
mp4ff_t *mp4 = mp4ff_open_read (cb);
#else
MP4FileHandle mp4 = MP4ReadProvider (fname, 0, cb);
#endif
if (!mp4) {
trace ("not an mp4 file\n");
return -1;
}
if (pmp4) {
*pmp4 = mp4;
}
#ifdef USE_MP4FF
int ntracks = mp4ff_total_tracks (mp4);
if (ntracks > 0) {
trace ("m4a container detected, ntracks=%d\n", ntracks);
int i = -1;
trace ("looking for mp4 data...\n");
int sr = -1;
for (i = 0; i < ntracks; i++) {
unsigned char* buff = 0;
unsigned int buff_size = 0;
mp4AudioSpecificConfig mp4ASC;
mp4ff_get_decoder_config(mp4, i, &buff, &buff_size);
if(buff){
int rc = AudioSpecificConfig(buff, buff_size, &mp4ASC);
sr = mp4ASC.samplingFrequency;
free(buff);
if(rc < 0)
continue;
break;
}
}
if (i != ntracks)
{
trace ("mp4 track: %d\n", i);
if (sr != -1) {
*samplerate = sr;
}
else {
*samplerate = mp4ff_get_sample_rate (mp4, i);
}
*channels = mp4ff_get_channel_count (mp4, i);
int samples = mp4ff_num_samples(mp4, i) * 1024;
samples = (int64_t)samples * (*samplerate) / mp4ff_time_scale (mp4, i);
trace ("mp4 nsamples=%d, samplerate=%d, timescale=%d, duration=%lld\n", samples, *samplerate, mp4ff_time_scale(mp4, i), mp4ff_get_track_duration(mp4, i));
*duration = (float)samples / (*samplerate);
if (totalsamples) {
*totalsamples = samples;
}
if (mp4track) {
*mp4track = i;
}
if (!*pmp4) {
mp4ff_close (mp4);
}
return 0;
}
}
#else
MP4FileHandle mp4File = mp4;
MP4TrackId trackId = MP4FindTrackId(mp4File, 0, "audio", 0);
trace ("trackid: %d\n", trackId);
uint32_t timeScale = MP4GetTrackTimeScale(mp4File, trackId);
MP4Duration trackDuration = MP4GetTrackDuration(mp4File, trackId);
MP4SampleId numSamples = MP4GetTrackNumberOfSamples(mp4File, trackId);
u_int8_t* pConfig;
uint32_t configSize = 0;
bool res = MP4GetTrackESConfiguration(mp4File, trackId, &pConfig, &configSize);
if (res && pConfig) {
mp4AudioSpecificConfig mp4ASC;
int rc = AudioSpecificConfig(pConfig, configSize, &mp4ASC);
free (pConfig);
if (rc >= 0) {
*samplerate = mp4ASC.samplingFrequency;
*channels = MP4GetTrackAudioChannels (mp4File, trackId);
// int64_t duration = MP4ConvertFromTrackDuration (mp4File, trackId, trackDuration, timeScale);
int samples = MP4GetTrackNumberOfSamples (mp4File, trackId) * 1024 * (*channels);
trace ("mp4 nsamples=%d, timescale=%d, samplerate=%d\n", samples, timeScale, *samplerate);
*duration = (float)samples / (*samplerate);
if (totalsamples) {
*totalsamples = samples;
}
if (mp4track) {
*mp4track = trackId;
}
if (!*pmp4) {
MP4Close (mp4);
}
return 0;
}
}
#endif
if (*pmp4) {
*pmp4 = NULL;
}
if (mp4) {
#if USE_MP4FF
mp4ff_close (mp4);
#else
MP4Close (mp4);
#endif
mp4 = NULL;
}
trace ("mp4 track not found, looking for aac stream...\n");
// not an mp4, try raw aac
#if USE_MP4FF
deadbeef->rewind (fp);
#endif
if (parse_aac_stream (fp, samplerate, channels, duration, totalsamples) == -1) {
trace ("aac stream not found\n");
return -1;
}
trace ("found aac stream\n");
return 1;
}
static int
aac_init (DB_fileinfo_t *_info, DB_playItem_t *it) {
aac_info_t *info = (aac_info_t *)_info;
info->file = deadbeef->fopen (deadbeef->pl_find_meta (it, ":URI"));
if (!info->file) {
return -1;
}
// probe
float duration = -1;
int samplerate = -1;
int channels = -1;
int totalsamples = -1;
int offs = -1;
if (!info->file->vfs->is_streaming ()) {
int skip = deadbeef->junk_get_leading_size (info->file);
if (skip >= 0) {
deadbeef->fseek (info->file, skip, SEEK_SET);
}
offs = deadbeef->ftell (info->file);
}
else {
deadbeef->fset_track (info->file, it);
}
info->mp4track = -1;
#if USE_MP4FF
info->mp4reader.read = aac_fs_read;
info->mp4reader.write = NULL;
info->mp4reader.seek = aac_fs_seek;
info->mp4reader.truncate = NULL;
info->mp4reader.user_data = info->file;
#else
info->mp4reader.open = aac_fs_open;
info->mp4reader.seek = aac_fs_seek;
info->mp4reader.read = aac_fs_read;
info->mp4reader.write = NULL;
info->mp4reader.close = aac_fs_close;
#endif
if (!info->file->vfs->is_streaming ()) {
#ifdef USE_MP4FF
trace ("aac_init: mp4ff_open_read %s\n", deadbeef->pl_find_meta (it, ":URI"));
info->mp4file = mp4ff_open_read (&info->mp4reader);
if (info->mp4file) {
int ntracks = mp4ff_total_tracks (info->mp4file);
if (ntracks > 0) {
trace ("m4a container detected, ntracks=%d\n", ntracks);
int i = -1;
unsigned char* buff = 0;
unsigned int buff_size = 0;
for (i = 0; i < ntracks; i++) {
mp4AudioSpecificConfig mp4ASC;
mp4ff_get_decoder_config (info->mp4file, i, &buff, &buff_size);
if(buff){
int rc = AudioSpecificConfig(buff, buff_size, &mp4ASC);
if(rc < 0)
continue;
break;
}
}
trace ("mp4 probe-buffer size: %d\n", buff_size);
if (i != ntracks && buff)
{
trace ("mp4 track: %d\n", i);
int samples = mp4ff_num_samples(info->mp4file, i);
info->mp4samples = samples;
trace ("mp4 mp4samples=%d, nsamples=%d, samplerate=%d\n", samples, samples * 1024, samplerate);
totalsamples = samples;
info->mp4track = i;
// init mp4 decoding
info->dec = NeAACDecOpen ();
unsigned long srate;
unsigned char ch;
if (NeAACDecInit2(info->dec, buff, buff_size, &srate, &ch) < 0) {
trace ("NeAACDecInit2 returned error\n");
return -1;
}
samplerate = srate;
channels = ch;
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration (info->dec);
conf->dontUpSampleImplicitSBR = 1;
NeAACDecSetConfiguration (info->dec, conf);
mp4AudioSpecificConfig mp4ASC;
if (NeAACDecAudioSpecificConfig(buff, buff_size, &mp4ASC) >= 0)
{
info->mp4framesize = 1024;
if (mp4ASC.frameLengthFlag == 1) {
info->mp4framesize = 960;
}
if (mp4ASC.sbr_present_flag == 1) {
info->mp4framesize *= 2;
}
}
totalsamples *= info->mp4framesize;
duration = (float)totalsamples / samplerate;
free (buff);
}
else {
mp4ff_close (info->mp4file);
info->mp4file = NULL;
}
}
else {
mp4ff_close (info->mp4file);
info->mp4file = NULL;
}
}
#else
trace ("aac_init: MP4ReadProvider %s\n", deadbeef->pl_find_meta (it, ":URI"));
info->mp4file = MP4ReadProvider (deadbeef->pl_find_meta (it, ":URI"), 0, &info->mp4reader);
info->mp4track = MP4FindTrackId(info->mp4file, 0, "audio", 0);
trace ("aac_init: MP4FindTrackId returned %d\n", info->mp4track);
if (info->mp4track >= 0) {
info->timescale = MP4GetTrackTimeScale(info->mp4file, info->mp4track);
u_int8_t* pConfig;
uint32_t configSize = 0;
bool res = MP4GetTrackESConfiguration(info->mp4file, info->mp4track, &pConfig, &configSize);
mp4AudioSpecificConfig mp4ASC;
int rc = AudioSpecificConfig(pConfig, configSize, &mp4ASC);
if (rc >= 0) {
_info->samplerate = mp4ASC.samplingFrequency;
_info->channels = MP4GetTrackAudioChannels (info->mp4file, info->mp4track);
totalsamples = MP4GetTrackNumberOfSamples (info->mp4file, info->mp4track) * 1024 * _info->channels;
// init mp4 decoding
info->dec = NeAACDecOpen ();
unsigned long srate;
unsigned char ch;
if (NeAACDecInit2(info->dec, pConfig, configSize, &srate, &ch) < 0) {
trace ("NeAACDecInit2 returned error\n");
return -1;
}
samplerate = srate;
channels = ch;
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration (info->dec);
conf->dontUpSampleImplicitSBR = 1;
NeAACDecSetConfiguration (info->dec, conf);
mp4AudioSpecificConfig mp4ASC;
if (NeAACDecAudioSpecificConfig(pConfig, configSize, &mp4ASC) >= 0)
{
info->mp4framesize = 1024;
if (mp4ASC.frameLengthFlag == 1) {
info->mp4framesize = 960;
}
if (mp4ASC.sbr_present_flag == 1) {
info->mp4framesize *= 2;
}
}
//totalsamples *= info->mp4framesize;
free (pConfig);
info->maxSampleSize = MP4GetTrackMaxSampleSize(info->mp4file, info->mp4track);
info->samplebuffer = malloc (info->maxSampleSize);
info->mp4sample = 1;
}
else {
MP4Close (info->mp4file);
info->mp4file = NULL;
}
}
else {
MP4Close (info->mp4file);
info->mp4file = NULL;
}
#endif
if (!info->mp4file) {
trace ("mp4 track not found, looking for aac stream...\n");
// not an mp4, try raw aac
deadbeef->rewind (info->file);
if (parse_aac_stream (info->file, &samplerate, &channels, &duration, &totalsamples) == -1) {
trace ("aac stream not found\n");
return -1;
}
deadbeef->rewind (info->file);
trace ("found aac stream\n");
}
_info->fmt.channels = channels;
_info->fmt.samplerate = samplerate;
}
else {
// sync before attempting to init
int samplerate, channels;
float duration;
offs = parse_aac_stream (info->file, &samplerate, &channels, &duration, NULL);
if (offs < 0) {
trace ("aac: parse_aac_stream failed\n");
return -1;
}
trace("parse_aac_stream returned %x\n", offs);
}
if (offs >= 0) {
deadbeef->fseek (info->file, offs, SEEK_SET);
}
// duration = (float)totalsamples / samplerate;
// deadbeef->pl_set_item_duration (it, duration);
_info->fmt.bps = 16;
_info->plugin = &plugin;
if (!info->mp4file) {
//trace ("NeAACDecGetCapabilities\n");
//unsigned long caps = NeAACDecGetCapabilities();
trace ("NeAACDecOpen\n");
info->dec = NeAACDecOpen ();
info->remaining = deadbeef->fread (info->buffer, 1, AAC_BUFFER_SIZE, info->file);
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration (info->dec);
// conf->dontUpSampleImplicitSBR = 1;
NeAACDecSetConfiguration (info->dec, conf);
unsigned long srate;
unsigned char ch;
trace ("NeAACDecInit\n");
int consumed = NeAACDecInit (info->dec, info->buffer, info->remaining, &srate, &ch);
trace ("NeAACDecInit returned samplerate=%d, channels=%d\n", (int)srate, (int)ch);
if (consumed < 0) {
trace ("NeAACDecInit returned %d\n", consumed);
return -1;
}
if (consumed > info->remaining) {
trace ("NeAACDecInit consumed more than available! wtf?\n");
return -1;
}
if (consumed == info->remaining) {
info->remaining = 0;
}
else if (consumed > 0) {
memmove (info->buffer, info->buffer + consumed, info->remaining - consumed);
info->remaining -= consumed;
}
_info->fmt.channels = ch;
_info->fmt.samplerate = srate;
}
if (!info->file->vfs->is_streaming ()) {
if (it->endsample > 0) {
info->startsample = it->startsample;
info->endsample = it->endsample;
plugin.seek_sample (_info, 0);
}
else {
info->startsample = 0;
info->endsample = totalsamples-1;
}
}
for (int i = 0; i < _info->fmt.channels; i++) {
_info->fmt.channelmask |= 1 << i;
}
info->noremap = 0;
info->remap[0] = -1;
trace ("init success\n");
return 0;
}
static void
aac_free (DB_fileinfo_t *_info) {
aac_info_t *info = (aac_info_t *)_info;
if (info) {
if (info->file) {
deadbeef->fclose (info->file);
}
if (info->mp4file) {
#ifdef USE_MP4FF
mp4ff_close (info->mp4file);
#else
MP4Close (info->mp4file);
#endif
}
if (info->dec) {
NeAACDecClose (info->dec);
}
free (info);
}
}
static int
aac_read (DB_fileinfo_t *_info, char *bytes, int size) {
aac_info_t *info = (aac_info_t *)_info;
int samplesize = _info->fmt.channels * _info->fmt.bps / 8;
if (!info->file->vfs->is_streaming ()) {
if (info->currentsample + size / samplesize > info->endsample) {
size = (info->endsample - info->currentsample + 1) * samplesize;
if (size <= 0) {
trace ("aac_read: eof");
return 0;
}
}
}
int initsize = size;
int eof = 0;
while (size > 0) {
if (info->skipsamples > 0 && info->out_remaining > 0) {
int skip = min (info->out_remaining, info->skipsamples);
if (skip < info->out_remaining) {
memmove (info->out_buffer, info->out_buffer + skip * samplesize, (info->out_remaining - skip) * samplesize);
}
info->out_remaining -= skip;
info->skipsamples -= skip;
}
if (info->out_remaining > 0) {
int n = size / samplesize;
n = min (info->out_remaining, n);
char *src = info->out_buffer;
if (info->noremap) {
memcpy (bytes, src, n * samplesize);
bytes += n * samplesize;
src += n * samplesize;
}
else {
int i, j;
if (info->remap[0] == -1) {
// build remap mtx
// FIXME: should build channelmask 1st; then remap based on channelmask
for (i = 0; i < _info->fmt.channels; i++) {
switch (info->frame_info.channel_position[i]) {
case FRONT_CHANNEL_CENTER:
trace ("FC->%d\n", i);
info->remap[2] = i;
break;
case FRONT_CHANNEL_LEFT:
trace ("FL->%d\n", i);
info->remap[0] = i;
break;
case FRONT_CHANNEL_RIGHT:
trace ("FR->%d\n", i);
info->remap[1] = i;
break;
case SIDE_CHANNEL_LEFT:
trace ("SL->%d\n", i);
info->remap[6] = i;
break;
case SIDE_CHANNEL_RIGHT:
trace ("SR->%d\n", i);
info->remap[7] = i;
break;
case BACK_CHANNEL_LEFT:
trace ("RL->%d\n", i);
info->remap[4] = i;
break;
case BACK_CHANNEL_RIGHT:
trace ("RR->%d\n", i);
info->remap[5] = i;
break;
case BACK_CHANNEL_CENTER:
trace ("BC->%d\n", i);
info->remap[8] = i;
break;
case LFE_CHANNEL:
trace ("LFE->%d\n", i);
info->remap[3] = i;
break;
default:
trace ("aac: unknown ch(%d)->%d\n", info->frame_info.channel_position[i], i);
break;
}
}
if (info->remap[0] == -1) {
info->remap[0] = 0;
}
if ((_info->fmt.channels == 1 && info->remap[0] == FRONT_CHANNEL_CENTER)
|| (_info->fmt.channels == 2 && info->remap[0] == FRONT_CHANNEL_LEFT && info->remap[1] == FRONT_CHANNEL_RIGHT)) {
info->noremap = 1;
}
}
for (i = 0; i < n; i++) {
for (j = 0; j < _info->fmt.channels; j++) {
((int16_t *)bytes)[info->remap[j]] = ((int16_t *)src)[j];
}
src += samplesize;
bytes += samplesize;
}
}
size -= n * samplesize;
if (n == info->out_remaining) {
info->out_remaining = 0;
}
else {
memmove (info->out_buffer, src, (info->out_remaining - n) * samplesize);
info->out_remaining -= n;
}
continue;
}
char *samples = NULL;
if (info->mp4file) {
unsigned char *buffer = NULL;
int buffer_size = 0;
#ifdef USE_MP4FF
int rc = mp4ff_read_sample (info->mp4file, info->mp4track, info->mp4sample, &buffer, &buffer_size);
if (rc == 0) {
break;
}
#else
buffer = info->samplebuffer;
buffer_size = info->maxSampleSize;
MP4Timestamp sampleTime;
MP4Duration sampleDuration;
MP4Duration sampleRenderingOffset;
bool isSyncSample;
MP4ReadSample (info->mp4file, info->mp4track, info->mp4sample, &buffer, &buffer_size, &sampleTime, &sampleDuration, &sampleRenderingOffset, &isSyncSample);
// convert timestamp and duration from track time to milliseconds
u_int64_t myTime = MP4ConvertFromTrackTimestamp (info->mp4file, info->mp4track,
sampleTime, MP4_MSECS_TIME_SCALE);
u_int64_t myDuration = MP4ConvertFromTrackDuration (info->mp4file, info->mp4track,
sampleDuration, MP4_MSECS_TIME_SCALE);
#endif
if (info->mp4sample >= info->mp4samples) {
if (buffer) {
free (buffer);
}
break;
}
info->mp4sample++;
samples = NeAACDecDecode(info->dec, &info->frame_info, buffer, buffer_size);
if (buffer) {
free (buffer);
}
if (!samples) {
break;
}
}
else {
if (info->remaining < AAC_BUFFER_SIZE) {
size_t res = deadbeef->fread (info->buffer + info->remaining, 1, AAC_BUFFER_SIZE-info->remaining, info->file);
if (res == 0) {
eof = 1;
}
info->remaining += res;
}
samples = NeAACDecDecode (info->dec, &info->frame_info, info->buffer, info->remaining);
if (!samples) {
trace ("NeAACDecDecode failed, consumed=%d\n", info->frame_info.bytesconsumed);
if (info->num_errors > 10) {
trace ("NeAACDecDecode failed %d times, interrupting\n", info->num_errors);
break;
}
info->num_errors++;
info->remaining = 0;
continue;
}
info->num_errors=0;
int consumed = info->frame_info.bytesconsumed;
if (consumed > info->remaining) {
trace ("NeAACDecDecode consumed more than available! wtf?\n");
break;
}
if (consumed == info->remaining) {
info->remaining = 0;
}
else if (consumed > 0) {
memmove (info->buffer, info->buffer + consumed, info->remaining - consumed);
info->remaining -= consumed;
}
}
if (info->frame_info.samples > 0) {
memcpy (info->out_buffer, samples, info->frame_info.samples * 2);
info->out_remaining = info->frame_info.samples / info->frame_info.channels;
}
}
info->currentsample += (initsize-size) / samplesize;
return initsize-size;
}
// returns -1 on error, 0 on success
int
seek_raw_aac (aac_info_t *info, int sample) {
uint8_t buf[ADTS_HEADER_SIZE*8];
int nsamples = 0;
int stream_sr = 0;
int stream_ch = 0;
int eof = 0;
int bufsize = 0;
int remaining = 0;
int frame = 0;
int frame_samples = 0;
int curr_sample = 0;
do {
curr_sample += frame_samples;
int size = sizeof (buf) - bufsize;
if (deadbeef->fread (buf + bufsize, 1, size, info->file) != size) {
trace ("seek_raw_aac: eof\n");
break;
}
bufsize = sizeof (buf);
int channels, samplerate, bitrate;
size = aac_sync (buf, &channels, &samplerate, &bitrate, &frame_samples);
if (size == 0) {
memmove (buf, buf+1, sizeof (buf)-1);
bufsize--;
continue;
}
else {
//trace ("aac: frame #%d(%d/%d) sync: %d %d %d %d %d\n", frame, curr_sample, sample, channels, samplerate, bitrate, frame_samples, size);
frame++;
if (deadbeef->fseek (info->file, size-(int)sizeof(buf), SEEK_CUR) == -1) {
trace ("seek_raw_aac: invalid seek %d\n", size-sizeof(buf));
break;
}
bufsize = 0;
}
if (samplerate <= 24000) {
frame_samples *= 2;
}
} while (curr_sample + frame_samples < sample);
if (curr_sample + frame_samples < sample) {
return -1;
}
return sample - curr_sample;
}
static int
aac_seek_sample (DB_fileinfo_t *_info, int sample) {
aac_info_t *info = (aac_info_t *)_info;
sample += info->startsample;
if (info->mp4file) {
info->mp4sample = sample / (info->mp4framesize-1);
info->skipsamples = sample - info->mp4sample * (info->mp4framesize-1);
}
else {
if (sample < info->currentsample, 1) {
int skip = deadbeef->junk_get_leading_size (info->file);
if (skip >= 0) {
deadbeef->fseek (info->file, skip, SEEK_SET);
}
else {
deadbeef->fseek (info->file, 0, SEEK_SET);
}
}
int res = seek_raw_aac (info, sample);
if (res < 0) {
return -1;
}
info->skipsamples = res;
}
info->remaining = 0;
info->out_remaining = 0;
info->currentsample = sample;
_info->readpos = (float)(info->currentsample - info->startsample) / _info->fmt.samplerate;
return 0;
}
static int
aac_seek (DB_fileinfo_t *_info, float t) {
return aac_seek_sample (_info, t * _info->fmt.samplerate);
}
#ifdef USE_MP4FF
static const char *metainfo[] = {
"artist", "artist",
"title", "title",
"album", "album",
"track", "track",
"date", "year",
"genre", "genre",
"comment", "comment",
"performer", "performer",
"album_artist", "band",
"writer", "composer",
"vendor", "vendor",
"disc", "disc",
"compilation", "compilation",
"totaldiscs", "numdiscs",
"copyright", "copyright",
"totaltracks", "numtracks",
"tool", "tool",
NULL
};
/* find a metadata item by name */
/* returns 0 if item found, 1 if no such item */
int32_t mp4ff_meta_find_by_name(const mp4ff_t *f, const char *item, char **value);
void
aac_load_tags (DB_playItem_t *it, mp4ff_t *mp4) {
char *s = NULL;
for (int i = 0; metainfo[i]; i += 2) {
if (mp4ff_meta_find_by_name(mp4, metainfo[i], &s)) {
deadbeef->pl_add_meta (it, metainfo[i+1], s);
free (s);
}
}
if (mp4ff_meta_find_by_name(mp4, "replaygain_track_gain", &s)) {
deadbeef->pl_set_item_replaygain (it, DDB_REPLAYGAIN_TRACKGAIN, atof (s));
free (s);
}
if (mp4ff_meta_find_by_name(mp4, "replaygain_track_peak", &s)) {
deadbeef->pl_set_item_replaygain (it, DDB_REPLAYGAIN_TRACKPEAK, atof (s));
free (s);
}
if (mp4ff_meta_find_by_name(mp4, "replaygain_album_gain", &s)) {
deadbeef->pl_set_item_replaygain (it, DDB_REPLAYGAIN_ALBUMGAIN, atof (s));
free (s);
}
if (mp4ff_meta_find_by_name(mp4, "replaygain_album_peak", &s)) {
deadbeef->pl_set_item_replaygain (it, DDB_REPLAYGAIN_ALBUMPEAK, atof (s));
free (s);
}
deadbeef->pl_add_meta (it, "title", NULL);
}
#endif
int
aac_read_metadata (DB_playItem_t *it) {
#ifdef USE_MP4FF
DB_FILE *fp = deadbeef->fopen (deadbeef->pl_find_meta (it, ":URI"));
if (!fp) {
return -1;
}
if (fp->vfs->is_streaming ()) {
deadbeef->fclose (fp);
return -1;
}
MP4FILE_CB cb = {
.read = aac_fs_read,
.write = NULL,
.seek = aac_fs_seek,
.truncate = NULL,
.user_data = fp
};
deadbeef->pl_delete_all_meta (it);
mp4ff_t *mp4 = mp4ff_open_read (&cb);
if (mp4) {
aac_load_tags (it, mp4);
mp4ff_close (mp4);
}
else {
/*int apeerr = */deadbeef->junk_apev2_read (it, fp);
/*int v2err = */deadbeef->junk_id3v2_read (it, fp);
/*int v1err = */deadbeef->junk_id3v1_read (it, fp);
deadbeef->pl_add_meta (it, "title", NULL);
}
deadbeef->fclose (fp);
#endif
return 0;
}
#ifdef USE_MP4FF
#if 0
static uint32_t
mp4ff_read_cb (void *user_data, void *buffer, uint32_t length) {
// trace ("aac_fs_read %d\n", length);
FILE *fp = (FILE *)user_data;
return fread (buffer, 1, length, fp);
}
static uint32_t
mp4ff_seek_cb (void *user_data, uint64_t position) {
// trace ("aac_fs_seek\n");
FILE *fp = (FILE *)user_data;
return fseek (fp, position, SEEK_SET);
}
static uint32_t
mp4ff_write_cb(void *user_data, void *buffer, uint32_t length) {
FILE *fp = (FILE *)user_data;
return fwrite (buffer, 1, length, fp);
}
static uint32_t
mp4ff_truncate_cb(void *user_data)
{
FILE *fp = (FILE *)user_data;
ftruncate(fileno(fp), ftello(fp));
return 0;
}
#endif
#endif
#ifdef USE_MP4FF
#if 0
static int
aac_write_metadata (DB_playItem_t *it) {
mp4ff_metadata_t md;
memset (&md, 0, sizeof (md));
deadbeef->pl_lock ();
DB_metaInfo_t *meta = deadbeef->pl_get_metadata_head (it);
// find numtags 1st
while (meta) {
if (meta->key[0] != ':') {
md.count++;
}
meta = meta->next;
}
// fill tags
if (md.count) {
md.tags = malloc (sizeof (mp4ff_tag_t) * md.count);
int n = 0;
meta = deadbeef->pl_get_metadata_head (it);
while (meta) {
if (meta->key[0] != ':') {
md.tags[n].item = "";//(char *)meta->key;
md.tags[n].value = (char *)meta->value;
n++;
}
meta = meta->next;
}
}
mp4ff_callback_t f = {
.read = mp4ff_read_cb,
.write = mp4ff_write_cb,
.seek = mp4ff_seek_cb,
.truncate = mp4ff_truncate_cb,
};
FILE *fp = fopen (deadbeef->pl_find_meta (it, ":URI"), "w");
f.user_data = fp;
mp4ff_meta_update (&f, &md);
if (md.tags) {
free (md.tags);
}
deadbeef->pl_unlock ();
return 0;
}
#endif
#endif
static DB_playItem_t *
aac_insert (DB_playItem_t *after, const char *fname) {
trace ("adding %s\n", fname);
DB_FILE *fp = deadbeef->fopen (fname);
if (!fp) {
trace ("not found\n");
return NULL;
}
const char *ftype = NULL;
float duration = -1;
int totalsamples = 0;
int samplerate = 0;
int channels = 0;
int mp4track = -1;
MP4FILE mp4 = NULL;
if (fp->vfs->is_streaming ()) {
trace ("streaming aac (%s)\n", fname);
ftype = plugin.filetypes[0];
}
else {
int skip = deadbeef->junk_get_leading_size (fp);
if (skip >= 0) {
deadbeef->fseek (fp, skip, SEEK_SET);
}
// slowwww!
MP4FILE_CB cb = {
#ifdef USE_MP4FF
.read = aac_fs_read,
.write = NULL,
.seek = aac_fs_seek,
.truncate = NULL,
.user_data = fp
#else
.open = aac_fs_open,
.seek = aac_fs_seek,
.read = aac_fs_read,
.write = NULL,
.close = aac_fs_close
#endif
};
int res = aac_probe (fp, fname, &cb, &duration, &samplerate, &channels, &totalsamples, &mp4track, &mp4);
if (res == -1) {
deadbeef->fclose (fp);
return NULL;
}
else if (res == 0) {
ftype = plugin.filetypes[1];
}
else if (res == 1) {
ftype = plugin.filetypes[0];
}
}
DB_playItem_t *it = deadbeef->pl_item_alloc_init (fname, plugin.plugin.id);
deadbeef->pl_add_meta (it, ":FILETYPE", ftype);
deadbeef->pl_set_item_duration (it, duration);
trace ("duration: %f sec\n", duration);
// read tags
if (mp4) {
#ifdef USE_MP4FF
aac_load_tags (it, mp4);
mp4ff_close (mp4);
#else
const MP4Tags *tags = MP4TagsAlloc ();
MP4TagsFetch (tags, mp4);
deadbeef->pl_add_meta (it, "title", tags->name);
deadbeef->pl_add_meta (it, "artist", tags->artist);
deadbeef->pl_add_meta (it, "albumArtist", tags->albumArtist);
deadbeef->pl_add_meta (it, "album", tags->album);
deadbeef->pl_add_meta (it, "composer", tags->composer);
deadbeef->pl_add_meta (it, "comments", tags->comments);
deadbeef->pl_add_meta (it, "genre", tags->genre);
deadbeef->pl_add_meta (it, "year", tags->releaseDate);
char s[10];
if (tags->track) {
snprintf (s, sizeof (s), "%d", tags->track->index);
deadbeef->pl_add_meta (it, "track", s);
snprintf (s, sizeof (s), "%d", tags->track->total);
deadbeef->pl_add_meta (it, "numtracks", s);
}
if (tags->disk) {
snprintf (s, sizeof (s), "%d", tags->disk->index);
deadbeef->pl_add_meta (it, "disc", s);
snprintf (s, sizeof (s), "%d", tags->disk->total);
deadbeef->pl_add_meta (it, "numdiscs", s);
}
deadbeef->pl_add_meta (it, "copyright", tags->copyright);
deadbeef->pl_add_meta (it, "vendor", tags->encodedBy);
deadbeef->pl_add_meta (it, "title", NULL);
MP4TagsFree (tags);
MP4Close (mp4);
#endif
}
else if (ftype == "aac") {
int apeerr = deadbeef->junk_apev2_read (it, fp);
int v2err = deadbeef->junk_id3v2_read (it, fp);
int v1err = deadbeef->junk_id3v1_read (it, fp);
deadbeef->pl_add_meta (it, "title", NULL);
}
int64_t fsize = deadbeef->fgetlength (fp);
deadbeef->fclose (fp);
if (duration > 0) {
char s[100];
snprintf (s, sizeof (s), "%lld", fsize);
deadbeef->pl_add_meta (it, ":FILE_SIZE", s);
deadbeef->pl_add_meta (it, ":BPS", "16");
snprintf (s, sizeof (s), "%d", channels);
deadbeef->pl_add_meta (it, ":CHANNELS", s);
snprintf (s, sizeof (s), "%d", samplerate);
deadbeef->pl_add_meta (it, ":SAMPLERATE", s);
int br = (int)roundf(fsize / duration * 8 / 1000);
snprintf (s, sizeof (s), "%d", br);
deadbeef->pl_add_meta (it, ":BITRATE", s);
// embedded cue
deadbeef->pl_lock ();
const char *cuesheet = deadbeef->pl_find_meta (it, "cuesheet");
DB_playItem_t *cue = NULL;
if (cuesheet) {
cue = deadbeef->pl_insert_cue_from_buffer (after, it, cuesheet, strlen (cuesheet), totalsamples, samplerate);
if (cue) {
deadbeef->pl_item_unref (it);
deadbeef->pl_item_unref (cue);
deadbeef->pl_unlock ();
return cue;
}
}
deadbeef->pl_unlock ();
cue = deadbeef->pl_insert_cue (after, it, totalsamples, samplerate);
if (cue) {
deadbeef->pl_item_unref (it);
deadbeef->pl_item_unref (cue);
return cue;
}
}
deadbeef->pl_add_meta (it, "title", NULL);
after = deadbeef->pl_insert_item (after, it);
deadbeef->pl_item_unref (it);
return after;
}
static const char * exts[] = { "aac", "mp4", "m4a", NULL };
static const char *filetypes[] = { "RAW AAC", "MP4 AAC", NULL };
// define plugin interface
static DB_decoder_t plugin = {
DB_PLUGIN_SET_API_VERSION
.plugin.version_major = 1,
.plugin.version_minor = 0,
.plugin.type = DB_PLUGIN_DECODER,
.plugin.id = "aac",
.plugin.name = "AAC player",
.plugin.descr = "plays aac files, supports raw aac files, as well as mp4 container",
.plugin.copyright =
"Copyright (C) 2009-2011 Alexey Yakovenko <waker@users.sourceforge.net>\n"
"\n"
"Uses modified libmp4ff (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com\n"
"\n"
"This program is free software; you can redistribute it and/or\n"
"modify it under the terms of the GNU General Public License\n"
"as published by the Free Software Foundation; either version 2\n"
"of the License, or (at your option) any later version.\n"
"\n"
"This program is distributed in the hope that it will be useful,\n"
"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
"GNU General Public License for more details.\n"
"\n"
"You should have received a copy of the GNU General Public License\n"
"along with this program; if not, write to the Free Software\n"
"Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.\n"
,
.plugin.website = "http://deadbeef.sf.net",
.open = aac_open,
.init = aac_init,
.free = aac_free,
.read = aac_read,
.seek = aac_seek,
.seek_sample = aac_seek_sample,
.insert = aac_insert,
.read_metadata = aac_read_metadata,
#ifdef USE_MP4FF
// mp4ff metadata writer doesn't work
// .write_metadata = aac_write_metadata,
#else
#endif
.exts = exts,
.filetypes = filetypes
};
DB_plugin_t *
aac_load (DB_functions_t *api) {
deadbeef = api;
return DB_PLUGIN (&plugin);
}
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