forked from len0rd/rockbox
Created new viewer application to test WavPack encoding. Accepts .wav file
and generates lossless .wv with the same name. Runs at about 150% realtime for now. Only problem is that folder display (and playlist?) do not get updated when finished and since files don't show extensions it's a little hard to tell which is which (wav is first by alpha). git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7010 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dave Bryant
parent
dacbc16d5b
commit
febd9750f1
3 changed files with 297 additions and 0 deletions
|
|
@ -68,6 +68,7 @@ alpine_cdc.c
|
|||
|
||||
#if CONFIG_HWCODEC == MASNONE /* software codec platforms */
|
||||
iriverify.c
|
||||
wav2wv.c
|
||||
#else
|
||||
splitedit.c
|
||||
metronome.c
|
||||
|
|
|
|||
|
|
@ -20,3 +20,5 @@ m3u,iriverify.rock,00 00 00 00 00 00
|
|||
mpc,mpc2wav.rock, 00 00 00 00 00 00
|
||||
mid,midi2wav.rock, 20 70 70 3F 00 00
|
||||
rsp,searchengine.rock, 0e 11 11 31 7e 60
|
||||
wav,wav2wv.rock, 00 00 00 00 00 00
|
||||
|
||||
|
|
|
|||
294
apps/plugins/wav2wv.c
Normal file
294
apps/plugins/wav2wv.c
Normal file
|
|
@ -0,0 +1,294 @@
|
|||
/***************************************************************************
|
||||
* __________ __ ___.
|
||||
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||||
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||||
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||||
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||||
* \/ \/ \/ \/ \/
|
||||
* $Id$
|
||||
*
|
||||
* Copyright (C) 2005 David Bryant
|
||||
*
|
||||
* 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"
|
||||
|
||||
#include <codecs/libwavpack/wavpack.h>
|
||||
|
||||
#define SAMPLES_PER_BLOCK 22050
|
||||
|
||||
static struct plugin_api* rb;
|
||||
|
||||
void *memset(void *s, int c, size_t n) {
|
||||
return(rb->memset(s,c,n));
|
||||
}
|
||||
|
||||
void *memcpy(void *dest, const void *src, size_t n) {
|
||||
return(rb->memcpy(dest,src,n));
|
||||
}
|
||||
|
||||
static char *audiobuf;
|
||||
static int audiobuflen;
|
||||
|
||||
static struct wav_header {
|
||||
char ckID [4]; /* RIFF chuck header */
|
||||
long ckSize;
|
||||
char formType [4];
|
||||
|
||||
char fmt_ckID [4]; /* format chunk header */
|
||||
long fmt_ckSize;
|
||||
ushort FormatTag, NumChannels;
|
||||
ulong SampleRate, BytesPerSecond;
|
||||
ushort BlockAlign, BitsPerSample;
|
||||
|
||||
char data_ckID [4]; /* data chunk header */
|
||||
long data_ckSize;
|
||||
} raw_header, native_header;
|
||||
|
||||
#define WAV_HEADER_FORMAT "4L44LSSLLSS4L"
|
||||
|
||||
static void wvupdate (long start_tick,
|
||||
long sample_rate,
|
||||
ulong total_samples,
|
||||
ulong samples_converted,
|
||||
ulong bytes_read,
|
||||
ulong bytes_written)
|
||||
{
|
||||
long elapsed_ticks = *rb->current_tick - start_tick;
|
||||
int compression = 0, progress = 0, realtime = 0;
|
||||
char buf[32];
|
||||
|
||||
if (total_samples)
|
||||
progress = (int)(((long long) samples_converted * 100 +
|
||||
(total_samples/2)) / total_samples);
|
||||
|
||||
if (elapsed_ticks)
|
||||
realtime = (int)(((long long) samples_converted * 100 * HZ /
|
||||
sample_rate + (elapsed_ticks/2)) / elapsed_ticks);
|
||||
|
||||
if (bytes_read)
|
||||
compression = (int)(((long long)(bytes_read - bytes_written) * 100 +
|
||||
(bytes_read/2)) / bytes_read);
|
||||
|
||||
rb->snprintf(buf, 32, "elapsed time: %d secs", (elapsed_ticks + (HZ/2)) / HZ);
|
||||
rb->lcd_puts(0, 2, buf);
|
||||
|
||||
rb->snprintf(buf, 32, "progress: %d%%", progress);
|
||||
rb->lcd_puts(0, 4, buf);
|
||||
|
||||
rb->snprintf(buf, 32, "realtime: %d%% ", realtime);
|
||||
rb->lcd_puts(0, 6, buf);
|
||||
|
||||
rb->snprintf(buf, 32, "compression: %d%% ", compression);
|
||||
rb->lcd_puts(0, 8, buf);
|
||||
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
rb->lcd_update();
|
||||
#endif
|
||||
}
|
||||
|
||||
static int wav2wv (char *filename)
|
||||
{
|
||||
int in_fd, out_fd, num_chans, error = false, last_buttons;
|
||||
unsigned long total_bytes_read = 0, total_bytes_written = 0;
|
||||
unsigned long total_samples, samples_remaining;
|
||||
long *input_buffer = (long *) audiobuf;
|
||||
unsigned char *output_buffer = audiobuf + 0x100000;
|
||||
char *extension, save_a;
|
||||
WavpackConfig config;
|
||||
WavpackContext *wpc;
|
||||
long start_tick;
|
||||
|
||||
rb->lcd_clear_display();
|
||||
rb->lcd_puts_scroll(0, 0, filename);
|
||||
#ifdef HAVE_LCD_BITMAP
|
||||
rb->lcd_update();
|
||||
#endif
|
||||
|
||||
last_buttons = rb->button_status ();
|
||||
start_tick = *rb->current_tick;
|
||||
extension = filename + rb->strlen (filename) - 3;
|
||||
|
||||
if (rb->strcasecmp (extension, "wav")) {
|
||||
rb->splash(HZ*2, true, "only for wav files!");
|
||||
return 1;
|
||||
}
|
||||
|
||||
in_fd = rb->open(filename, O_RDONLY);
|
||||
|
||||
if (in_fd < 0) {
|
||||
rb->splash(HZ*2, true, "could not open file!");
|
||||
return true;
|
||||
}
|
||||
|
||||
if (rb->read (in_fd, &raw_header, sizeof (raw_header)) != sizeof (raw_header)) {
|
||||
rb->splash(HZ*2, true, "could not read file!");
|
||||
return true;
|
||||
}
|
||||
|
||||
total_bytes_read += sizeof (raw_header);
|
||||
rb->memcpy (&native_header, &raw_header, sizeof (raw_header));
|
||||
little_endian_to_native (&native_header, WAV_HEADER_FORMAT);
|
||||
|
||||
if (rb->strncmp (native_header.ckID, "RIFF", 4) ||
|
||||
rb->strncmp (native_header.fmt_ckID, "fmt ", 4) ||
|
||||
rb->strncmp (native_header.data_ckID, "data", 4) ||
|
||||
native_header.FormatTag != 1 || native_header.BitsPerSample != 16) {
|
||||
rb->splash(HZ*2, true, "incompatible wav file!");
|
||||
return true;
|
||||
}
|
||||
|
||||
wpc = WavpackOpenFileOutput ();
|
||||
WavpackSetOutputBuffer (wpc, output_buffer, output_buffer + 0x100000);
|
||||
|
||||
rb->memset (&config, 0, sizeof (config));
|
||||
config.bits_per_sample = 16;
|
||||
config.bytes_per_sample = 2;
|
||||
config.sample_rate = native_header.SampleRate;
|
||||
num_chans = config.num_channels = native_header.NumChannels;
|
||||
total_samples = native_header.data_ckSize / native_header.BlockAlign;
|
||||
|
||||
if (!WavpackSetConfiguration (wpc, &config, total_samples)) {
|
||||
rb->splash(HZ*2, true, "internal error!");
|
||||
rb->close (in_fd);
|
||||
return true;
|
||||
}
|
||||
|
||||
WavpackAddWrapper (wpc, &raw_header, sizeof (raw_header));
|
||||
save_a = extension [1];
|
||||
extension [1] = extension [2];
|
||||
extension [2] = 0;
|
||||
|
||||
out_fd = rb->creat (filename, O_WRONLY);
|
||||
|
||||
extension [2] = extension [1];
|
||||
extension [1] = save_a;
|
||||
|
||||
if (out_fd < 0) {
|
||||
rb->splash(HZ*2, true, "could not create file!");
|
||||
rb->close (in_fd);
|
||||
return true;
|
||||
}
|
||||
|
||||
wvupdate (start_tick, native_header.SampleRate, total_samples, 0, 0, 0);
|
||||
|
||||
for (samples_remaining = total_samples; samples_remaining;) {
|
||||
unsigned long samples_count, bytes_count;
|
||||
int cnt, buttons;
|
||||
long value, *lp;
|
||||
char *cp;
|
||||
|
||||
samples_count = SAMPLES_PER_BLOCK;
|
||||
|
||||
if (samples_count > samples_remaining)
|
||||
samples_count = samples_remaining;
|
||||
|
||||
bytes_count = samples_count * num_chans * 2;
|
||||
|
||||
if (rb->read (in_fd, input_buffer, bytes_count) != (long) bytes_count) {
|
||||
rb->splash(HZ*2, true, "could not read file!");
|
||||
error = true;
|
||||
break;
|
||||
}
|
||||
|
||||
total_bytes_read += bytes_count;
|
||||
cp = (char *) input_buffer + bytes_count;
|
||||
lp = input_buffer + samples_count * num_chans;
|
||||
cnt = samples_count;
|
||||
|
||||
if (num_chans == 2)
|
||||
while (cnt--) {
|
||||
value = *--cp << 8;
|
||||
value += *--cp & 0xff;
|
||||
*--lp = value;
|
||||
value = *--cp << 8;
|
||||
value += *--cp & 0xff;
|
||||
*--lp = value;
|
||||
}
|
||||
else
|
||||
while (cnt--) {
|
||||
value = *--cp << 8;
|
||||
value += *--cp & 0xff;
|
||||
*--lp = value;
|
||||
}
|
||||
|
||||
bytes_count = WavpackPackSamples (wpc, input_buffer, samples_count);
|
||||
|
||||
if (!bytes_count) {
|
||||
rb->splash(HZ*2, true, "internal error!");
|
||||
error = true;
|
||||
break;
|
||||
}
|
||||
|
||||
if (rb->write (out_fd, output_buffer, bytes_count) != (long) bytes_count) {
|
||||
rb->splash(HZ*2, true, "could not write file!");
|
||||
error = true;
|
||||
break;
|
||||
}
|
||||
|
||||
total_bytes_written += bytes_count;
|
||||
samples_remaining -= samples_count;
|
||||
|
||||
wvupdate (start_tick, native_header.SampleRate, total_samples,
|
||||
total_samples - samples_remaining, total_bytes_read, total_bytes_written);
|
||||
|
||||
buttons = rb->button_status ();
|
||||
|
||||
if (last_buttons == BUTTON_NONE && buttons != BUTTON_NONE) {
|
||||
rb->splash(HZ*2, true, "operation aborted!");
|
||||
error = true;
|
||||
break;
|
||||
}
|
||||
else
|
||||
last_buttons = buttons;
|
||||
}
|
||||
|
||||
rb->close (out_fd);
|
||||
rb->close (in_fd);
|
||||
|
||||
if (error) {
|
||||
save_a = extension [1];
|
||||
extension [1] = extension [2];
|
||||
extension [2] = 0;
|
||||
rb->remove (filename);
|
||||
extension [2] = extension [1];
|
||||
extension [1] = save_a;
|
||||
}
|
||||
else
|
||||
rb->splash(HZ*3, true, "operation successful");
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
enum plugin_status plugin_start(struct plugin_api* api, void *parameter)
|
||||
{
|
||||
TEST_PLUGIN_API(api);
|
||||
|
||||
rb = api;
|
||||
|
||||
if (!parameter)
|
||||
return PLUGIN_ERROR;
|
||||
|
||||
audiobuf = rb->plugin_get_audio_buffer(&audiobuflen);
|
||||
|
||||
if (audiobuflen < 0x200000) {
|
||||
rb->splash(HZ*2, true, "not enough memory!");
|
||||
return PLUGIN_ERROR;
|
||||
}
|
||||
|
||||
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
|
||||
rb->cpu_boost(true);
|
||||
#endif
|
||||
|
||||
wav2wv (parameter);
|
||||
|
||||
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
|
||||
rb->cpu_boost(false);
|
||||
#endif
|
||||
return PLUGIN_OK;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue