4d6374c923
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12807 a1c6a512-1295-4272-9138-f99709370657
327 lines
9.5 KiB
C
327 lines
9.5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2005 David Bryant
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "plugin.h"
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#ifdef RB_PROFILE
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#include "lib/profile_plugin.h"
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#endif
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#include <codecs/libwavpack/wavpack.h>
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PLUGIN_HEADER
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#define SAMPLES_PER_BLOCK 22050
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static struct plugin_api* rb;
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void *memset(void *s, int c, size_t n) {
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return(rb->memset(s,c,n));
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}
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void *memcpy(void *dest, const void *src, size_t n) {
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return(rb->memcpy(dest,src,n));
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}
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static char *audiobuf;
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static int audiobuflen;
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static struct wav_header {
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char ckID [4]; /* RIFF chuck header */
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int32_t ckSize;
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char formType [4];
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char fmt_ckID [4]; /* format chunk header */
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int32_t fmt_ckSize;
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ushort FormatTag, NumChannels;
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uint32_t SampleRate, BytesPerSecond;
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ushort BlockAlign, BitsPerSample;
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char data_ckID [4]; /* data chunk header */
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int32_t data_ckSize;
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} raw_header, native_header;
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#define WAV_HEADER_FORMAT "4L44LSSLLSS4L"
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static void wvupdate (int32_t start_tick,
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int32_t sample_rate,
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uint32_t total_samples,
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uint32_t samples_converted,
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uint32_t bytes_read,
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uint32_t bytes_written)
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{
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int32_t elapsed_ticks = *rb->current_tick - start_tick;
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int compression = 0, progress = 0, realtime = 0;
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char buf[32];
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if (total_samples)
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progress = (int)(((int64_t) samples_converted * 100 +
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(total_samples/2)) / total_samples);
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if (elapsed_ticks)
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realtime = (int)(((int64_t) samples_converted * 100 * HZ /
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sample_rate + (elapsed_ticks/2)) / elapsed_ticks);
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if (bytes_read)
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compression = (int)(((int64_t)(bytes_read - bytes_written) * 100 +
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(bytes_read/2)) / bytes_read);
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rb->snprintf(buf, 32, "elapsed time: %d secs", (elapsed_ticks + (HZ/2)) / HZ);
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rb->lcd_puts(0, 2, (unsigned char *)buf);
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rb->snprintf(buf, 32, "progress: %d%%", progress);
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rb->lcd_puts(0, 4, (unsigned char *)buf);
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rb->snprintf(buf, 32, "realtime: %d%% ", realtime);
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rb->lcd_puts(0, 6, (unsigned char *)buf);
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rb->snprintf(buf, 32, "compression: %d%% ", compression);
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rb->lcd_puts(0, 8, (unsigned char *)buf);
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#ifdef HAVE_LCD_BITMAP
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rb->lcd_update();
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#endif
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}
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#define TEMP_SAMPLES 4096
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static int32_t temp_buffer [TEMP_SAMPLES] IDATA_ATTR;
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static int wav2wv (char *filename)
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{
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int in_fd, out_fd, num_chans, error = false, last_buttons;
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unsigned int32_t total_bytes_read = 0, total_bytes_written = 0;
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unsigned int32_t total_samples, samples_remaining;
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int32_t *input_buffer = (int32_t *) audiobuf;
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unsigned char *output_buffer = (unsigned char *)(audiobuf + 0x100000);
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char *extension, save_a;
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WavpackConfig config;
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WavpackContext *wpc;
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int32_t start_tick;
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rb->lcd_clear_display();
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rb->lcd_puts_scroll(0, 0, (unsigned char *)filename);
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#ifdef HAVE_LCD_BITMAP
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rb->lcd_update();
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#endif
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last_buttons = rb->button_status ();
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start_tick = *rb->current_tick;
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extension = filename + rb->strlen (filename) - 3;
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if (rb->strcasecmp (extension, "wav")) {
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rb->splash(HZ*2, "only for wav files!");
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return 1;
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}
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in_fd = rb->open(filename, O_RDONLY);
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if (in_fd < 0) {
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rb->splash(HZ*2, "could not open file!");
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return true;
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}
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if (rb->read (in_fd, &raw_header, sizeof (raw_header)) != sizeof (raw_header)) {
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rb->splash(HZ*2, "could not read file!");
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return true;
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}
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total_bytes_read += sizeof (raw_header);
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rb->memcpy (&native_header, &raw_header, sizeof (raw_header));
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little_endian_to_native (&native_header, WAV_HEADER_FORMAT);
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if (rb->strncmp (native_header.ckID, "RIFF", 4) ||
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rb->strncmp (native_header.fmt_ckID, "fmt ", 4) ||
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rb->strncmp (native_header.data_ckID, "data", 4) ||
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native_header.FormatTag != 1 || native_header.BitsPerSample != 16) {
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rb->splash(HZ*2, "incompatible wav file!");
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return true;
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}
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wpc = WavpackOpenFileOutput ();
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rb->memset (&config, 0, sizeof (config));
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config.bits_per_sample = 16;
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config.bytes_per_sample = 2;
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config.sample_rate = native_header.SampleRate;
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num_chans = config.num_channels = native_header.NumChannels;
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total_samples = native_header.data_ckSize / native_header.BlockAlign;
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/* config.flags |= CONFIG_HIGH_FLAG; */
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if (!WavpackSetConfiguration (wpc, &config, total_samples)) {
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rb->splash(HZ*2, "internal error!");
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rb->close (in_fd);
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return true;
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}
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WavpackAddWrapper (wpc, &raw_header, sizeof (raw_header));
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save_a = extension [1];
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extension [1] = extension [2];
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extension [2] = 0;
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out_fd = rb->creat (filename);
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extension [2] = extension [1];
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extension [1] = save_a;
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if (out_fd < 0) {
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rb->splash(HZ*2, "could not create file!");
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rb->close (in_fd);
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return true;
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}
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wvupdate (start_tick, native_header.SampleRate, total_samples, 0, 0, 0);
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for (samples_remaining = total_samples; samples_remaining;) {
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unsigned int32_t samples_count, samples_to_pack, bytes_count;
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int cnt, buttons;
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int32_t value, *lp;
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signed char *cp;
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samples_count = SAMPLES_PER_BLOCK;
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if (samples_count > samples_remaining)
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samples_count = samples_remaining;
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bytes_count = samples_count * num_chans * 2;
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if (rb->read (in_fd, input_buffer, bytes_count) != (int32_t) bytes_count) {
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rb->splash(HZ*2, "could not read file!");
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error = true;
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break;
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}
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total_bytes_read += bytes_count;
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WavpackStartBlock (wpc, output_buffer, output_buffer + 0x100000);
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samples_to_pack = samples_count;
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cp = (signed char *) input_buffer;
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while (samples_to_pack) {
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unsigned int32_t samples_this_pass = TEMP_SAMPLES / num_chans;
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if (samples_this_pass > samples_to_pack)
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samples_this_pass = samples_to_pack;
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lp = temp_buffer;
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cnt = samples_this_pass;
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if (num_chans == 2)
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while (cnt--) {
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value = *cp++ & 0xff;
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value += *cp++ << 8;
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*lp++ = value;
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value = *cp++ & 0xff;
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value += *cp++ << 8;
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*lp++ = value;
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}
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else
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while (cnt--) {
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value = *cp++ & 0xff;
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value += *cp++ << 8;
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*lp++ = value;
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}
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if (!WavpackPackSamples (wpc, temp_buffer, samples_this_pass)) {
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rb->splash(HZ*2, "internal error!");
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error = true;
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break;
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}
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samples_to_pack -= samples_this_pass;
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}
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if (error)
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break;
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bytes_count = WavpackFinishBlock (wpc);
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if (rb->write (out_fd, output_buffer, bytes_count) != (int32_t) bytes_count) {
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rb->splash(HZ*2, "could not write file!");
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error = true;
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break;
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}
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total_bytes_written += bytes_count;
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samples_remaining -= samples_count;
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wvupdate (start_tick, native_header.SampleRate, total_samples,
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total_samples - samples_remaining, total_bytes_read, total_bytes_written);
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buttons = rb->button_status ();
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if (last_buttons == BUTTON_NONE && buttons != BUTTON_NONE) {
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rb->splash(HZ*2, "operation aborted!");
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error = true;
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break;
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}
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else
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last_buttons = buttons;
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}
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rb->close (out_fd);
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rb->close (in_fd);
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if (error) {
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save_a = extension [1];
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extension [1] = extension [2];
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extension [2] = 0;
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rb->remove (filename);
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extension [2] = extension [1];
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extension [1] = save_a;
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}
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else
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rb->splash(HZ*3, "operation successful");
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return error;
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}
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enum plugin_status plugin_start(struct plugin_api* api, void *parameter)
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{
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#ifdef RB_PROFILE
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/* This doesn't start profiling or anything, it just gives the
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* profiling functions that are compiled in someplace to call,
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* this is needed here to let this compile with profiling support
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* since it calls code from a codec that is compiled with profiling
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* support */
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profile_init(api);
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#endif
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rb = api;
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if (!parameter)
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return PLUGIN_ERROR;
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audiobuf = rb->plugin_get_audio_buffer(&audiobuflen);
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if (audiobuflen < 0x200000) {
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rb->splash(HZ*2, "not enough memory!");
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return PLUGIN_ERROR;
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}
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(true);
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#endif
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wav2wv (parameter);
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(false);
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#endif
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/* Return PLUGIN_USB_CONNECTED to force a file-tree refresh */
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return PLUGIN_USB_CONNECTED;
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}
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