Nyaaori/rockbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Initial check-in of AAC codec. Currently only recognises the .mp4 extension and is not yet capable of realtime operation

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7706 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Chapman 2005-10-31 20:56:29 +00:00
parent 407be69b8c
commit cea6d0c92f
8 changed files with 220 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
apps/FILES
View file

@ -35,6 +35,8 @@ codecs/SOURCES
codecs/*.[ch]
codecs/Makefile
codecs/liba52/*
codecs/libfaad/*
codecs/libfaad/codebook/*
codecs/libffmpegFLAC/*
codecs/libmad/*
codecs/libwavpack/*

13
apps/codecs/Makefile
View file

@ -17,7 +17,7 @@ ifdef APPEXTRA
endif
ifdef SOFTWARECODECS
CODECLIBS = -lmad -la52 -lffmpegFLAC -lTremor -lwavpack -lmusepack -lalac -lm4a
CODECLIBS = -lmad -la52 -lffmpegFLAC -lTremor -lwavpack -lmusepack -lalac -lfaad -lm4a
endif
# we "borrow" the plugin LDS file
@ -39,7 +39,7 @@ DIRS = .
CODECDEPS = $(LINKCODEC) $(BUILDDIR)/libcodec.a
.PHONY: libmad liba52 libffmpegFLAC libTremor libwavpack dumb libmusepack libalac libm4a
.PHONY: libmad liba52 libffmpegFLAC libTremor libwavpack dumb libmusepack libalac libfaad libm4a
OUTPUT = $(SOFTWARECODECS)
@ -61,6 +61,7 @@ $(OBJDIR)/mpc.elf: $(OBJDIR)/mpc.o $(CODECDEPS) $(BUILDDIR)/libmusepack.a
$(OBJDIR)/wav.elf: $(OBJDIR)/wav.o $(CODECDEPS)
$(OBJDIR)/wavpack.elf: $(OBJDIR)/wavpack.o $(CODECDEPS) $(BUILDDIR)/libwavpack.a
$(OBJDIR)/alac.elf: $(OBJDIR)/alac.o $(CODECDEPS) $(BUILDDIR)/libalac.a $(BUILDDIR)/libm4a.a
$(OBJDIR)/aac.elf: $(OBJDIR)/aac.o $(CODECDEPS) $(BUILDDIR)/libfaad.a $(BUILDDIR)/libm4a.a
$(OBJDIR)/%.elf: $(OBJDIR)/%.o $(CODECDEPS)
$(ELFIT)
@ -162,9 +163,14 @@ libm4a:
@mkdir -p $(OBJDIR)/libm4a
@$(MAKE) -C libm4a OBJDIR=$(OBJDIR)/libm4a OUTPUT=$(BUILDDIR)/libm4a.a
libfaad:
@echo "MAKE in libfaad"
@mkdir -p $(OBJDIR)/libfaad
@$(MAKE) -C libfaad OBJDIR=$(OBJDIR)/libfaad OUTPUT=$(BUILDDIR)/libfaad.a
clean:
@echo "cleaning codecs"
$(SILENT)rm -fr $(OBJDIR)/libmad $(BUILDDIR)/libmad.a $(OBJDIR)/liba52 $(OBJDIR)/libffmpegFLAC $(BUILDDIR)/libffmpegFLAC.a $(OBJDIR)/Tremor $(OBJDIR)/libwavpack $(OBJDIR)/dumb $(BUILDDIR)/libdumb.a $(BUILDDIR)/libdumbd.a $(OBJDIR)/libmusepack $(BUILDDIR)/libmusepack.a $(OBJDIR)/libalac $(BUILDDIR)/libalac.a $(OBJDIR)/libm4a $(BUILDDIR)/libm4a.a
$(SILENT)rm -fr $(OBJDIR)/libmad $(BUILDDIR)/libmad.a $(OBJDIR)/liba52 $(OBJDIR)/libffmpegFLAC $(OBJDIR)/Tremor $(OBJDIR)/libwavpack $(OBJDIR)/dumb $(BUILDDIR)/libdumb.a $(BUILDDIR)/libdumbd.a $(OBJDIR)/libmusepack $(BUILDDIR)/libmusepack.a $(OBJDIR)/libalac $(BUILDDIR)/libalac.a $(OBJDIR)/libfaad $(BUILDDIR)/libfaad.a $(OBJDIR)/libm4a $(BUILDDIR)/libm4a.a
@$(MAKE) -C libmad clean OBJDIR=$(OBJDIR)/libmad
@$(MAKE) -C liba52 clean OBJDIR=$(OBJDIR)/liba52
@$(MAKE) -C libffmpegFLAC clean OBJDIR=$(OBJDIR)/libffmpegFLAC
@ -172,6 +178,7 @@ clean:
@$(MAKE) -C libwavpack clean OBJDIR=$(OBJDIR)/libwavpack
@$(MAKE) -C libmusepack clean OBJDIR=$(OBJDIR)/libmusepack
@$(MAKE) -C libalac clean OBJDIR=$(OBJDIR)/libalac
@$(MAKE) -C libfaad clean OBJDIR=$(OBJDIR)/libfaad
@$(MAKE) -C libm4a clean OBJDIR=$(OBJDIR)/libm4a
@$(MAKE) -C dumb clean OBJDIR=$(OBJDIR)/dumb
@$(MAKE) -C lib clean OBJDIR=$(OBJDIR)/lib

1
apps/codecs/SOURCES
View file

@ -7,4 +7,5 @@ a52.c
mpc.c
wavpack.c
alac.c
aac.c
#endif

184
apps/codecs/aac.c Normal file
View file

@ -0,0 +1,184 @@
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Dave Chapman
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "codeclib.h"
#include "libm4a/m4a.h"
#include "libfaad/common.h"
#include "libfaad/structs.h"
#include "libfaad/decoder.h"
#ifndef SIMULATOR
extern char iramcopy[];
extern char iramstart[];
extern char iramend[];
#endif
struct codec_api* rb;
struct codec_api* ci;
/* this is the codec entry point */
enum codec_status codec_start(struct codec_api* api)
{
size_t n;
static demux_res_t demux_res;
stream_t input_stream;
uint32_t samplesdone;
uint32_t elapsedtime;
uint32_t sample_duration;
uint32_t sample_byte_size;
int samplesdecoded;
unsigned int i;
unsigned char* buffer;
static NeAACDecFrameInfo frameInfo;
NeAACDecHandle hDecoder;
int err;
int16_t* decodedbuffer;
/* Generic codec initialisation */
TEST_CODEC_API(api);
rb = api;
ci = (struct codec_api*)api;
#ifndef SIMULATOR
rb->memcpy(iramstart, iramcopy, iramend-iramstart);
#endif
ci->configure(CODEC_SET_FILEBUF_LIMIT, (int *)(1024*1024*2));
ci->configure(CODEC_SET_FILEBUF_CHUNKSIZE, (int *)(1024*16));
ci->configure(CODEC_SET_FILEBUF_WATERMARK, (int *)(1024*512));
ci->configure(CODEC_DSP_ENABLE, (bool *)true);
ci->configure(DSP_DITHER, (bool *)false);
ci->configure(DSP_SET_STEREO_MODE, (int *)STEREO_INTERLEAVED);
ci->configure(DSP_SET_SAMPLE_DEPTH, (int *)(16));
next_track:
if (codec_init(api)) {
LOGF("FAAD: Error initialising codec\n");
return CODEC_ERROR;
}
while (!rb->taginfo_ready)
rb->yield();
ci->configure(DSP_SET_FREQUENCY, (long *)(rb->id3->frequency));
stream_create(&input_stream,ci);
/* if qtmovie_read returns successfully, the stream is up to
* the movie data, which can be used directly by the decoder */
if (!qtmovie_read(&input_stream, &demux_res)) {
LOGF("FAAD: Error initialising file\n");
return CODEC_ERROR;
}
/* initialise the sound converter */
hDecoder = NULL;
hDecoder = NeAACDecOpen();
if (!hDecoder) {
LOGF("FAAD: Error opening decoder\n");
return CODEC_ERROR;
}
NeAACDecConfigurationPtr conf = NeAACDecGetCurrentConfiguration(hDecoder);
conf->outputFormat = 1; // 16-bit integers
NeAACDecSetConfiguration(hDecoder, conf);
unsigned long s=0;
unsigned char c=0;
err = NeAACDecInit2(hDecoder, demux_res.codecdata,demux_res.codecdata_len, &s, &c);
if (err) {
LOGF("FAAD: Error initialising decoder: %d, type=%d\n", err,hDecoder->object_type);
return CODEC_ERROR;
}
ci->id3->frequency=s;
i=0;
samplesdone=0;
/* The main decoding loop */
while (i < demux_res.num_sample_byte_sizes) {
rb->yield();
if (ci->stop_codec || ci->reload_codec) {
break;
}
/* Deal with any pending seek requests */
if (ci->seek_time) {
if (alac_seek(&demux_res,&input_stream,
(ci->seek_time/10) * (ci->id3->frequency/100),
&samplesdone, &i)) {
elapsedtime=(samplesdone*10)/(ci->id3->frequency/100);
ci->set_elapsed(elapsedtime);
}
ci->seek_time = 0;
}
/* Lookup the length (in samples and bytes) of block i */
if (!get_sample_info(&demux_res, i, &sample_duration,
&sample_byte_size)) {
LOGF("AAC: Error in get_sample_info\n");
return CODEC_ERROR;
}
/* Request the required number of bytes from the input buffer */
buffer=ci->request_buffer((long*)&n,sample_byte_size);
/* Decode one block - returned samples will be host-endian */
rb->yield();
decodedbuffer = NeAACDecDecode(hDecoder, &frameInfo, buffer, n);
if (frameInfo.error > 0) {
LOGF("FAAD: decoding error \"%s\"\n", NeAACDecGetErrorMessage(frameInfo.error));
return CODEC_ERROR;
}
/* Get the number of decoded samples */
samplesdecoded=frameInfo.samples;
/* Advance codec buffer */
ci->advance_buffer(n);
/* Output the audio */
rb->yield();
while (!rb->pcmbuf_insert((char*)decodedbuffer, frameInfo.samples << 1))
rb->yield();
/* Update the elapsed-time indicator */
samplesdone+=sample_duration;
elapsedtime=(samplesdone*10)/(ci->id3->frequency/100);
ci->set_elapsed(elapsedtime);
/* Keep track of current position - for resuming */
ci->set_offset(elapsedtime);
i++;
}
LOGF("AAC: Decoded %d samples\n",samplesdone);
if (ci->request_next_track())
goto next_track;
return CODEC_OK;
}

15
apps/metadata.c
View file

@ -76,6 +76,7 @@ static const struct format_list formats[] =
{ AFMT_A52, "ac3" },
{ AFMT_WAVPACK, "wv" },
{ AFMT_ALAC, "m4a" },
{ AFMT_AAC, "mp4" },
};
static const unsigned short a52_bitrates[] =
@ -965,7 +966,7 @@ static bool get_wave_metadata(int fd, struct mp3entry* id3)
static bool get_alac_metadata(int fd, struct mp3entry* id3)
static bool get_m4a_metadata(int fd, struct mp3entry* id3)
{
unsigned char* buf;
unsigned long totalsamples;
@ -1171,11 +1172,18 @@ static bool get_alac_metadata(int fd, struct mp3entry* id3)
i+=4;
/* Check the codec type - 'alac' for ALAC, 'mp4a' for AAC */
if (memcmp(&buf[i],"alac",4)!=0) {
if ((id3->codectype==AFMT_ALAC) &&
(memcmp(&buf[i],"alac",4)!=0)) {
logf("Not an ALAC file\n");
return false;
}
if ((id3->codectype==AFMT_AAC) &&
(memcmp(&buf[i],"mp4a",4)!=0)) {
logf("Not a MP4 AAC file\n");
return false;
}
//numchannels=(buf[i+20]<<8)|buf[i+21]; /* Not used - assume Stereo */
//samplesize=(buf[i+22]<<8)|buf[i+23]; /* Not used - assume 16-bit */
@ -1425,7 +1433,8 @@ bool get_metadata(struct track_info* track, int fd, const char* trackname,
break;
case AFMT_ALAC:
if (!get_alac_metadata(fd, &(track->id3)))
case AFMT_AAC:
if (!get_m4a_metadata(fd, &(track->id3)))
{
// return false;
}

5
apps/playback.c
View file

@ -75,6 +75,7 @@ static volatile bool paused;
#define CODEC_MPC "/.rockbox/codecs/mpc.codec"
#define CODEC_WAVPACK "/.rockbox/codecs/wavpack.codec"
#define CODEC_ALAC "/.rockbox/codecs/alac.codec"
#define CODEC_AAC "/.rockbox/codecs/aac.codec"
#define AUDIO_FILL_CYCLE (1024*256)
#define AUDIO_DEFAULT_WATERMARK (1024*512)
@ -899,6 +900,10 @@ bool loadcodec(const char *trackname, bool start_play)
logf("Codec: ALAC");
codec_path = CODEC_ALAC;
break;
case AFMT_AAC:
logf("Codec: AAC");
codec_path = CODEC_AAC;
break;
default:
logf("Codec: Unsupported");
snprintf(msgbuf, sizeof(msgbuf)-1, "No codec for: %s", trackname);

1
apps/tree.c
View file

@ -90,6 +90,7 @@ const struct filetype filetypes[] = {
{ "mpc", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
{ "wv", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
{ "m4a", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
{ "mp4", TREE_ATTR_MPA, Icon_Audio, VOICE_EXT_MPA },
#endif
{ "m3u", TREE_ATTR_M3U, Icon_Playlist, LANG_PLAYLIST },
{ "cfg", TREE_ATTR_CFG, Icon_Config, VOICE_EXT_CFG },

8
tools/configure vendored
View file

@ -523,7 +523,7 @@ appsdir='\$(ROOTDIR)/apps'
archosrom=""
flash=""
plugins="yes"
codecs="libmad liba52 libffmpegFLAC libTremor libwavpack dumb libmusepack libalac libm4a"
codecs="libmad liba52 libffmpegFLAC libTremor libwavpack dumb libmusepack libalac libfaad libm4a"
;;
10)
@ -537,7 +537,7 @@ appsdir='\$(ROOTDIR)/apps'
archosrom=""
flash=""
plugins="yes"
codecs="libmad liba52 libffmpegFLAC libTremor libwavpack dumb libmusepack libalac libm4a"
codecs="libmad liba52 libffmpegFLAC libTremor libwavpack dumb libmusepack libalac libfaad libm4a"
;;
11)
@ -551,7 +551,7 @@ appsdir='\$(ROOTDIR)/apps'
archosrom=""
flash=""
plugins="yes"
codecs="libmad liba52 libffmpegFLAC libTremor libwavpack dumb libmusepack libalac libm4a"
codecs="libmad liba52 libffmpegFLAC libTremor libwavpack dumb libmusepack libalac libfaad libm4a"
;;
12)
@ -565,7 +565,7 @@ appsdir='\$(ROOTDIR)/apps'
archosrom=""
flash=""
plugins="yes"
codecs="libmad liba52 libffmpegFLAC libTremor libwavpack dumb libmusepack libalac libm4a"
codecs="libmad liba52 libffmpegFLAC libTremor libwavpack dumb libmusepack libalac libfaad libm4a"
;;
*)