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rockbox/apps/plugins/test_codec.c

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 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 "plugin.h"
PLUGIN_HEADER
/* All swcodec targets have BUTTON_SELECT apart from the H10 */
#if CONFIG_KEYPAD == IRIVER_H10_PAD
#define TESTCODEC_EXITBUTTON BUTTON_RIGHT
#else
#define TESTCODEC_EXITBUTTON BUTTON_SELECT
#endif
static struct plugin_api* rb;
CACHE_FUNCTION_WRAPPERS(rb)
/* Log functions copied from test_disk.c */
static int line = 0;
static int max_line = 0;
static int log_fd = -1;
static char logfilename[MAX_PATH];
static bool log_init(bool use_logfile)
{
int h;
rb->lcd_setmargins(0, 0);
rb->lcd_getstringsize("A", NULL, &h);
max_line = LCD_HEIGHT / h;
line = 0;
rb->lcd_clear_display();
rb->lcd_update();
if (use_logfile) {
rb->create_numbered_filename(logfilename, "/", "test_codec_log_", ".txt",
2 IF_CNFN_NUM_(, NULL));
log_fd = rb->open(logfilename, O_RDWR|O_CREAT|O_TRUNC);
return log_fd >= 0;
}
return true;
}
static void log_text(char *text, bool advance)
{
rb->lcd_puts(0, line, text);
rb->lcd_update();
if (advance)
{
if (++line >= max_line)
line = 0;
if (log_fd >= 0)
rb->fdprintf(log_fd, "%s\n", text);
}
}
static void log_close(void)
{
if (log_fd >= 0)
rb->close(log_fd);
}
struct wavinfo_t
{
int fd;
int samplerate;
int channels;
int sampledepth;
int stereomode;
int totalsamples;
};
static void* audiobuf;
static void* codec_mallocbuf;
static size_t audiosize;
static char str[MAX_PATH];
/* Our local implementation of the codec API */
static struct codec_api ci;
struct test_track_info {
struct mp3entry id3; /* TAG metadata */
size_t filesize; /* File total length */
};
static struct test_track_info track;
static bool taginfo_ready = true;
static volatile unsigned int elapsed;
static volatile bool codec_playing;
struct wavinfo_t wavinfo;
static unsigned char wav_header[44] =
{
'R','I','F','F', // 0 - ChunkID
0,0,0,0, // 4 - ChunkSize (filesize-8)
'W','A','V','E', // 8 - Format
'f','m','t',' ', // 12 - SubChunkID
16,0,0,0, // 16 - SubChunk1ID // 16 for PCM
1,0, // 20 - AudioFormat (1=16-bit)
0,0, // 22 - NumChannels
0,0,0,0, // 24 - SampleRate in Hz
0,0,0,0, // 28 - Byte Rate (SampleRate*NumChannels*(BitsPerSample/8)
0,0, // 32 - BlockAlign (== NumChannels * BitsPerSample/8)
16,0, // 34 - BitsPerSample
'd','a','t','a', // 36 - Subchunk2ID
0,0,0,0 // 40 - Subchunk2Size
};
static inline void int2le32(unsigned char* buf, int32_t x)
{
buf[0] = (x & 0xff);
buf[1] = (x & 0xff00) >> 8;
buf[2] = (x & 0xff0000) >> 16;
buf[3] = (x & 0xff000000) >>24;
}
static inline void int2le24(unsigned char* buf, int32_t x)
{
buf[0] = (x & 0xff);
buf[1] = (x & 0xff00) >> 8;
buf[2] = (x & 0xff0000) >> 16;
}
static inline void int2le16(unsigned char* buf, int16_t x)
{
buf[0] = (x & 0xff);
buf[1] = (x & 0xff00) >> 8;
}
void init_wav(char* filename)
{
wavinfo.totalsamples = 0;
wavinfo.fd = rb->creat(filename);
if (wavinfo.fd >= 0)
{
/* Write WAV header - we go back and fill in the details at the end */
rb->write(wavinfo.fd, wav_header, sizeof(wav_header));
}
}
void close_wav(void) {
int filesize = rb->filesize(wavinfo.fd);
int channels = (wavinfo.stereomode == STEREO_MONO) ? 1 : 2;
int bps = 16; /* TODO */
/* We assume 16-bit, Stereo */
rb->lseek(wavinfo.fd,0,SEEK_SET);
int2le32(wav_header+4, filesize-8); /* ChunkSize */
int2le16(wav_header+22, channels);
int2le32(wav_header+24, wavinfo.samplerate);
int2le32(wav_header+28, wavinfo.samplerate * channels * (bps / 8)); /* ByteRate */
int2le16(wav_header+32, channels * (bps / 8));
int2le32(wav_header+40, filesize - 44); /* Subchunk2Size */
rb->write(wavinfo.fd, wav_header, sizeof(wav_header));
rb->close(wavinfo.fd);
}
/* Returns buffer to malloc array. Only codeclib should need this. */
static void* get_codec_memory(size_t *size)
{
DEBUGF("get_codec_memory(%d)\n",(int)size);
*size = 512*1024;
return codec_mallocbuf;
}
/* Null output */
static bool pcmbuf_insert_null(const void *ch1, const void *ch2, int count)
{
/* Always successful - just discard data */
(void)ch1;
(void)ch2;
(void)count;
/* Prevent idle poweroff */
rb->reset_poweroff_timer();
return true;
}
/* 64KB should be enough */
static unsigned char wavbuffer[64*1024];
static inline int32_t clip_sample(int32_t sample)
{
if ((int16_t)sample != sample)
sample = 0x7fff ^ (sample >> 31);
return sample;
}
/* WAV output */
static bool pcmbuf_insert_wav(const void *ch1, const void *ch2, int count)
{
const int16_t* data1_16;
const int16_t* data2_16;
const int32_t* data1_32;
const int32_t* data2_32;
unsigned char* p = wavbuffer;
const int scale = wavinfo.sampledepth - 15;
const int dc_bias = 1 << (scale - 1);
/* Prevent idle poweroff */
rb->reset_poweroff_timer();
if (wavinfo.sampledepth <= 16) {
data1_16 = ch1;
data2_16 = ch2;
switch(wavinfo.stereomode)
{
case STEREO_INTERLEAVED:
while (count--) {
int2le16(p,*data1_16++);
p += 2;
int2le16(p,*data1_16++);
p += 2;
}
break;
case STEREO_NONINTERLEAVED:
while (count--) {
int2le16(p,*data1_16++);
p += 2;
int2le16(p,*data2_16++);
p += 2;
}
break;
case STEREO_MONO:
while (count--) {
int2le16(p,*data1_16++);
p += 2;
}
break;
}
} else {
data1_32 = ch1;
data2_32 = ch2;
switch(wavinfo.stereomode)
{
case STEREO_INTERLEAVED:
while (count--) {
int2le16(p, clip_sample((*data1_32++ + dc_bias) >> scale));
p += 2;
int2le16(p, clip_sample((*data1_32++ + dc_bias) >> scale));
p += 2;
}
break;
case STEREO_NONINTERLEAVED:
while (count--) {
int2le16(p, clip_sample((*data1_32++ + dc_bias) >> scale));
p += 2;
int2le16(p, clip_sample((*data2_32++ + dc_bias) >> scale));
p += 2;
}
break;
case STEREO_MONO:
while (count--) {
int2le16(p, clip_sample((*data1_32++ + dc_bias) >> scale));
p += 2;
}
break;
}
}
wavinfo.totalsamples += count;
rb->write(wavinfo.fd, wavbuffer, p - wavbuffer);
return true;
}
/* Set song position in WPS (value in ms). */
static void set_elapsed(unsigned int value)
{
elapsed = value;
}
/* Read next <size> amount bytes from file buffer to <ptr>.
Will return number of bytes read or 0 if end of file. */
static size_t read_filebuf(void *ptr, size_t size)
{
if (ci.curpos > (off_t)track.filesize)
{
return 0;
} else {
/* TODO: Don't read beyond end of buffer */
rb->memcpy(ptr, audiobuf + ci.curpos, size);
ci.curpos += size;
return size;
}
}
/* Request pointer to file buffer which can be used to read
<realsize> amount of data. <reqsize> tells the buffer system
how much data it should try to allocate. If <realsize> is 0,
end of file is reached. */
static void* request_buffer(size_t *realsize, size_t reqsize)
{
*realsize = MIN(track.filesize-ci.curpos,reqsize);
return (audiobuf + ci.curpos);
}
/* Advance file buffer position by <amount> amount of bytes. */
static void advance_buffer(size_t amount)
{
ci.curpos += amount;
}
/* Advance file buffer to a pointer location inside file buffer. */
static void advance_buffer_loc(void *ptr)
{
ci.curpos = ptr - audiobuf;
}
/* Seek file buffer to position <newpos> beginning of file. */
static bool seek_buffer(size_t newpos)
{
ci.curpos = newpos;
return true;
}
/* Codec should call this function when it has done the seeking. */
static void seek_complete(void)
{
/* Do nothing */
}
/* Calculate mp3 seek position from given time data in ms. */
static off_t mp3_get_filepos(int newtime)
{
/* We don't ask the codec to seek, so no need to implement this. */
(void)newtime;
return 0;
}
/* Request file change from file buffer. Returns true is next
track is available and changed. If return value is false,
codec should exit immediately with PLUGIN_OK status. */
static bool request_next_track(void)
{
/* We are only decoding a single track */
return false;
}
/* Free the buffer area of the current codec after its loaded */
static void discard_codec(void)
{
/* ??? */
}
static void set_offset(size_t value)
{
/* ??? */
(void)value;
}
/* Configure different codec buffer parameters. */
static void configure(int setting, intptr_t value)
{
switch(setting)
{
case DSP_SWITCH_FREQUENCY:
case DSP_SET_FREQUENCY:
DEBUGF("samplerate=%d\n",(int)value);
wavinfo.samplerate = (int)value;
break;
case DSP_SET_SAMPLE_DEPTH:
DEBUGF("sampledepth = %d\n",(int)value);
wavinfo.sampledepth=(int)value;
break;
case DSP_SET_STEREO_MODE:
DEBUGF("Stereo mode = %d\n",(int)value);
wavinfo.stereomode=(int)value;
break;
}
}
static void init_ci(void)
{
/* --- Our "fake" implementations of the codec API functions. --- */
ci.get_codec_memory = get_codec_memory;
if (wavinfo.fd >= 0) {
ci.pcmbuf_insert = pcmbuf_insert_wav;
} else {
ci.pcmbuf_insert = pcmbuf_insert_null;
}
ci.set_elapsed = set_elapsed;
ci.read_filebuf = read_filebuf;
ci.request_buffer = request_buffer;
ci.advance_buffer = advance_buffer;
ci.advance_buffer_loc = advance_buffer_loc;
ci.seek_buffer = seek_buffer;
ci.seek_complete = seek_complete;
ci.mp3_get_filepos = mp3_get_filepos;
ci.request_next_track = request_next_track;
ci.discard_codec = discard_codec;
ci.set_offset = set_offset;
ci.configure = configure;
/* --- "Core" functions --- */
/* kernel/ system */
ci.PREFIX(sleep) = rb->PREFIX(sleep);
ci.yield = rb->yield;
/* strings and memory */
ci.strcpy = rb->strcpy;
ci.strncpy = rb->strncpy;
ci.strlen = rb->strlen;
ci.strcmp = rb->strcmp;
ci.strcat = rb->strcat;
ci.memset = rb->memset;
ci.memcpy = rb->memcpy;
ci.memmove = rb->memmove;
ci.memcmp = rb->memcmp;
ci.memchr = rb->memchr;
#if defined(DEBUG) || defined(SIMULATOR)
ci.debugf = rb->debugf;
#endif
#ifdef ROCKBOX_HAS_LOGF
ci.logf = rb->logf;
#endif
ci.qsort = rb->qsort;
ci.global_settings = rb->global_settings;
#ifdef RB_PROFILE
ci.profile_thread = rb->profile_thread;
ci.profstop = rb->profstop;
ci.profile_func_enter = rb->profile_func_enter;
ci.profile_func_exit = rb->profile_func_exit;
#endif
#ifdef CACHE_FUNCTIONS_AS_CALL
ci.invalidate_icache = invalidate_icache;
ci.flush_icache = flush_icache;
#endif
}
static void codec_thread(void)
{
const char* codecname;
int res;
codecname = rb->get_codec_filename(track.id3.codectype);
/* Load the codec and start decoding. */
res = rb->codec_load_file(codecname,&ci);
/* Signal to the main thread that we are done */
codec_playing = false;
}
static unsigned char* codec_stack;
static size_t codec_stack_size;
static enum plugin_status test_track(char* filename)
{
size_t n;
int fd;
enum plugin_status res = PLUGIN_OK;
unsigned long starttick;
unsigned long ticks;
unsigned long speed;
unsigned long duration;
struct thread_entry* codecthread_id;
char* ch;
/* Display filename (excluding any path)*/
ch = rb->strrchr(filename, '/');
if (ch==NULL)
ch = filename;
else
ch++;
rb->snprintf(str,sizeof(str),"%s",ch);
log_text(str,true);
log_text("Loading...",false);
fd = rb->open(filename,O_RDONLY);
if (fd < 0)
{
log_text("Cannot open file",true);
return PLUGIN_ERROR;
}
track.filesize = rb->filesize(fd);
/* Clear the id3 struct */
rb->memset(&track.id3, 0, sizeof(struct mp3entry));
if (!rb->get_metadata(&(track.id3), fd, filename))
{
log_text("Cannot read metadata",true);
return PLUGIN_ERROR;
}
if (track.filesize > audiosize)
{
log_text("File too large",true);
return PLUGIN_ERROR;
}
n = rb->read(fd, audiobuf, track.filesize);
if (n != track.filesize)
{
log_text("Read failed.",true);
res = PLUGIN_ERROR;
goto exit;
}
/* Initialise the function pointers in the codec API */
init_ci();
/* Prepare the codec struct for playing the whole file */
ci.filesize = track.filesize;
ci.id3 = &track.id3;
ci.taginfo_ready = &taginfo_ready;
ci.curpos = 0;
ci.stop_codec = false;
ci.new_track = 0;
ci.seek_time = 0;
starttick = *rb->current_tick;
codec_playing = true;
if ((codecthread_id = rb->create_thread(codec_thread,
(uint8_t*)codec_stack, codec_stack_size, 0, "testcodec"
IF_PRIO(,PRIORITY_PLAYBACK) IF_COP(, CPU))) == NULL)
{
log_text("Cannot create codec thread!",true);
goto exit;
}
/* Wait for codec thread to die */
while (codec_playing)
{
rb->sleep(HZ);
rb->snprintf(str,sizeof(str),"%d of %d",elapsed,(int)track.id3.length);
log_text(str,false);
}
/* Save the current time before we spin up the disk to access the log */
ticks = *rb->current_tick - starttick;
log_text(str,true);
/* Close WAV file (if there was one) */
if (wavinfo.fd >= 0) {
close_wav();
log_text("Wrote /test.wav",true);
} else {
/* Display benchmark information */
rb->snprintf(str,sizeof(str),"Decode time - %d.%02ds",(int)ticks/100,(int)ticks%100);
log_text(str,true);
duration = track.id3.length / 10;
rb->snprintf(str,sizeof(str),"File duration - %d.%02ds",(int)duration/100,(int)duration%100);
log_text(str,true);
if (ticks > 0)
speed = duration * 10000 / ticks;
else
speed = 0;
rb->snprintf(str,sizeof(str),"%d.%02d%% realtime",(int)speed/100,(int)speed%100);
log_text(str,true);
}
/* Write an empty line to the log */
log_text("",true);
rb->backlight_on();
exit:
return res;
}
/* plugin entry point */
enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
{
unsigned char* codec_stack_copy;
int result, selection = 0;
enum plugin_status res = PLUGIN_OK;
int scandir;
int i;
struct dirent *entry;
DIR* dir;
char* ch;
char dirpath[MAX_PATH];
char filename[MAX_PATH];
rb = api;
if (parameter == NULL)
{
rb->splash(HZ*2, "No File");
return PLUGIN_ERROR;
}
#ifdef SIMULATOR
/* The simulator thread implementation doesn't have stack buffers */
(void)i;
codec_stack_size = 0;
#else
/* Borrow the codec thread's stack (in IRAM on most targets) */
codec_stack = NULL;
for (i = 0; i < MAXTHREADS; i++)
{
if (rb->strcmp(rb->threads[i].name,"codec")==0)
{
codec_stack = rb->threads[i].stack;
codec_stack_size = rb->threads[i].stack_size;
break;
}
}
if (codec_stack == NULL)
{
rb->splash(HZ*2, "No codec thread!");
return PLUGIN_ERROR;
}
#endif
codec_mallocbuf = rb->plugin_get_audio_buffer(&audiosize);
codec_stack_copy = codec_mallocbuf + 512*1024;
audiobuf = codec_stack_copy + codec_stack_size;
audiosize -= 512*1024 + codec_stack_size;
#ifndef SIMULATOR
/* Backup the codec thread's stack */
rb->memcpy(codec_stack_copy,codec_stack,codec_stack_size);
#endif
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(true);
#endif
rb->lcd_clear_display();
rb->lcd_update();
MENUITEM_STRINGLIST(
menu, "test_codec", NULL,
"Speed test",
"Speed test folder",
"Write WAV",
);
rb->lcd_clear_display();
result=rb->do_menu(&menu,&selection);
scandir = 0;
if (result==0) {
wavinfo.fd = -1;
log_init(false);
} else if (result==1) {
wavinfo.fd = -1;
scandir = 1;
/* Only create a log file when we are testing a folder */
if (!log_init(true)) {
rb->splash(HZ*2, "Cannot create logfile");
res = PLUGIN_ERROR;
goto exit;
}
} else if (result==2) {
log_init(false);
init_wav("/test.wav");
if (wavinfo.fd < 0) {
rb->splash(HZ*2, "Cannot create /test.wav");
res = PLUGIN_ERROR;
goto exit;
}
} else if (result == MENU_ATTACHED_USB) {
res = PLUGIN_USB_CONNECTED;
goto exit;
} else if (result < 0) {
res = PLUGIN_OK;
goto exit;
}
if (scandir) {
/* Test all files in the same directory as the file selected by the
user */
rb->strncpy(dirpath,parameter,sizeof(dirpath));
ch = rb->strrchr(dirpath,'/');
ch[1]=0;
DEBUGF("Scanning directory \"%s\"\n",dirpath);
dir = rb->opendir(dirpath);
if (dir) {
entry = rb->readdir(dir);
while (entry) {
if (!(entry->attribute & ATTR_DIRECTORY)) {
rb->snprintf(filename,sizeof(filename),"%s%s",dirpath,entry->d_name);
test_track(filename);
}
/* Read next entry */
entry = rb->readdir(dir);
}
}
} else {
/* Just test the file */
res = test_track(parameter);
while (rb->button_get(true) != TESTCODEC_EXITBUTTON);
}
exit:
log_close();
#ifndef SIMULATOR
/* Restore the codec thread's stack */
rb->memcpy(codec_stack, codec_stack_copy, codec_stack_size);
#endif
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(false);
#endif
return res;
}
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