main.c
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/* test_seeking - Seeking tester for libFLAC
* Copyright (C) 2004-2009 Josh Coalson
* Copyright (C) 2011-2016 Xiph.Org Foundation
*
* 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.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined _MSC_VER || defined __MINGW32__
#include <time.h>
#else
#include <sys/time.h>
#endif
#include <sys/stat.h> /* for stat() */
#include "FLAC/assert.h"
#include "FLAC/metadata.h"
#include "FLAC/stream_decoder.h"
#include "share/compat.h"
typedef struct {
FLAC__int32 **pcm;
FLAC__bool got_data;
FLAC__uint64 total_samples;
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uint32_t channels;
uint32_t bits_per_sample;
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FLAC__bool quiet;
FLAC__bool ignore_errors;
FLAC__bool error_occurred;
} DecoderClientData;
static FLAC__bool stop_signal_ = false;
static void our_sigint_handler_(int signum)
{
(void)signum;
printf("(caught SIGINT) ");
fflush(stdout);
stop_signal_ = true;
}
static FLAC__bool die_(const char *msg)
{
printf("ERROR: %s\n", msg);
return false;
}
static FLAC__bool die_s_(const char *msg, const FLAC__StreamDecoder *decoder)
{
FLAC__StreamDecoderState state = FLAC__stream_decoder_get_state(decoder);
if(msg)
printf("FAILED, %s", msg);
else
printf("FAILED");
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printf(", state = %u (%s)\n", (uint32_t)state, FLAC__StreamDecoderStateString[state]);
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return false;
}
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static uint32_t local_rand_(void)
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{
#if !defined _MSC_VER && !defined __MINGW32__
#define RNDFUNC random
#else
#define RNDFUNC rand
#endif
/* every RAND_MAX I've ever seen is 2^15-1 or 2^31-1, so a little hackery here: */
if (RAND_MAX > 32767)
return RNDFUNC();
else /* usually MSVC, some solaris */
return (RNDFUNC()<<15) | RNDFUNC();
#undef RNDFUNC
}
static FLAC__off_t get_filesize_(const char *srcpath)
{
struct flac_stat_s srcstat;
if(0 == flac_stat(srcpath, &srcstat))
return srcstat.st_size;
else
return -1;
}
static FLAC__bool read_pcm_(FLAC__int32 *pcm[], const char *rawfilename, const char *flacfilename)
{
FILE *f;
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uint32_t channels = 0, bps = 0, samples, i, j;
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FLAC__off_t rawfilesize = get_filesize_(rawfilename);
if (rawfilesize < 0) {
fprintf(stderr, "ERROR: can't determine filesize for %s\n", rawfilename);
return false;
}
/* get sample format from flac file; would just use FLAC__metadata_get_streaminfo() except it doesn't work for Ogg FLAC yet */
{
#if 0
FLAC__StreamMetadata streaminfo;
if(!FLAC__metadata_get_streaminfo(flacfilename, &streaminfo)) {
printf("ERROR: getting STREAMINFO from %s\n", flacfilename);
return false;
}
channels = streaminfo.data.stream_info.channels;
bps = streaminfo.data.stream_info.bits_per_sample;
#else
FLAC__bool ok = true;
FLAC__Metadata_Chain *chain = FLAC__metadata_chain_new();
FLAC__Metadata_Iterator *it = 0;
ok = ok && chain && (FLAC__metadata_chain_read(chain, flacfilename) || FLAC__metadata_chain_read_ogg(chain, flacfilename));
ok = ok && (it = FLAC__metadata_iterator_new());
if(ok) FLAC__metadata_iterator_init(it, chain);
ok = ok && (FLAC__metadata_iterator_get_block(it)->type == FLAC__METADATA_TYPE_STREAMINFO);
ok = ok && (channels = FLAC__metadata_iterator_get_block(it)->data.stream_info.channels);
ok = ok && (bps = FLAC__metadata_iterator_get_block(it)->data.stream_info.bits_per_sample);
if(it) FLAC__metadata_iterator_delete(it);
if(chain) FLAC__metadata_chain_delete(chain);
if(!ok) {
printf("ERROR: getting STREAMINFO from %s\n", flacfilename);
return false;
}
#endif
}
if(channels > 2) {
printf("ERROR: PCM verification requires 1 or 2 channels, got %u\n", channels);
return false;
}
if(bps != 8 && bps != 16) {
printf("ERROR: PCM verification requires 8 or 16 bps, got %u\n", bps);
return false;
}
samples = rawfilesize / channels / (bps>>3);
if (samples > 10000000) {
fprintf(stderr, "ERROR: %s is too big\n", rawfilename);
return false;
}
for(i = 0; i < channels; i++) {
if(0 == (pcm[i] = malloc(sizeof(FLAC__int32)*samples))) {
printf("ERROR: allocating space for PCM samples\n");
return false;
}
}
if(0 == (f = flac_fopen(rawfilename, "rb"))) {
printf("ERROR: opening %s for reading\n", rawfilename);
return false;
}
/* assumes signed big-endian data */
if(bps == 8) {
signed char c;
for(i = 0; i < samples; i++) {
for(j = 0; j < channels; j++) {
if (fread(&c, 1, 1, f) == 1)
pcm[j][i] = c;
}
}
}
else { /* bps == 16 */
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uint8_t c[2];
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uint16_t value;
for(i = 0; i < samples; i++) {
for(j = 0; j < channels; j++) {
if (fread(&c, 1, 2, f) == 2) {
value = (c[0] << 8) | c[1];
pcm[j][i] = value & 0x8000 ? 0xffff0000 | value : value;
}
}
}
}
fclose(f);
return true;
}
static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__StreamDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
{
DecoderClientData *dcd = (DecoderClientData*)client_data;
(void)decoder, (void)buffer;
if(0 == dcd) {
printf("ERROR: client_data in write callback is NULL\n");
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
if(dcd->error_occurred)
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
FLAC__ASSERT(frame->header.number_type == FLAC__FRAME_NUMBER_TYPE_SAMPLE_NUMBER); /* decoder guarantees this */
if (!dcd->quiet)
printf("frame@%" PRIu64 "(%u)... ", frame->header.number.sample_number, frame->header.blocksize);
fflush(stdout);
/* check against PCM data if we have it */
if (dcd->pcm) {
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uint32_t c, i, j;
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for (c = 0; c < frame->header.channels; c++)
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for (i = (uint32_t)frame->header.number.sample_number, j = 0; j < frame->header.blocksize; i++, j++)
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if (buffer[c][j] != dcd->pcm[c][i]) {
printf("ERROR: sample mismatch at sample#%u(%u), channel=%u, expected %d, got %d\n", i, j, c, buffer[c][j], dcd->pcm[c][i]);
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
}
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
static void metadata_callback_(const FLAC__StreamDecoder *decoder, const FLAC__StreamMetadata *metadata, void *client_data)
{
DecoderClientData *dcd = (DecoderClientData*)client_data;
(void)decoder;
if(0 == dcd) {
printf("ERROR: client_data in metadata callback is NULL\n");
return;
}
if(dcd->error_occurred)
return;
if (!dcd->got_data && metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
dcd->got_data = true;
dcd->total_samples = metadata->data.stream_info.total_samples;
dcd->channels = metadata->data.stream_info.channels;
dcd->bits_per_sample = metadata->data.stream_info.bits_per_sample;
}
}
static void error_callback_(const FLAC__StreamDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
{
DecoderClientData *dcd = (DecoderClientData*)client_data;
(void)decoder;
if(0 == dcd) {
printf("ERROR: client_data in error callback is NULL\n");
return;
}
if(!dcd->ignore_errors) {
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printf("ERROR: got error callback: err = %u (%s)\n", (uint32_t)status, FLAC__StreamDecoderErrorStatusString[status]);
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dcd->error_occurred = true;
}
}
/* read mode:
* 0 - no read after seek
* 1 - read 2 frames
* 2 - read until end
*/
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static FLAC__bool seek_barrage(FLAC__bool is_ogg, const char *filename, FLAC__off_t filesize, uint32_t count, FLAC__int64 total_samples, uint32_t read_mode, FLAC__int32 **pcm)
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{
FLAC__StreamDecoder *decoder;
DecoderClientData decoder_client_data;
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long int n;
decoder_client_data.pcm = pcm;
decoder_client_data.got_data = false;
decoder_client_data.total_samples = 0;
decoder_client_data.quiet = false;
decoder_client_data.ignore_errors = false;
decoder_client_data.error_occurred = false;
printf("\n+++ seek test: FLAC__StreamDecoder (%s FLAC, read_mode=%u)\n\n", is_ogg? "Ogg":"native", read_mode);
decoder = FLAC__stream_decoder_new();
if(0 == decoder)
return die_("FLAC__stream_decoder_new() FAILED, returned NULL\n");
if(is_ogg) {
if(FLAC__stream_decoder_init_ogg_file(decoder, filename, write_callback_, metadata_callback_, error_callback_, &decoder_client_data) != FLAC__STREAM_DECODER_INIT_STATUS_OK)
return die_s_("FLAC__stream_decoder_init_file() FAILED", decoder);
}
else {
if(FLAC__stream_decoder_init_file(decoder, filename, write_callback_, metadata_callback_, error_callback_, &decoder_client_data) != FLAC__STREAM_DECODER_INIT_STATUS_OK)
return die_s_("FLAC__stream_decoder_init_file() FAILED", decoder);
}
if(!FLAC__stream_decoder_process_until_end_of_metadata(decoder))
return die_s_("FLAC__stream_decoder_process_until_end_of_metadata() FAILED", decoder);
if(!is_ogg) { /* not necessary to do this for Ogg because of its seeking method */
/* process until end of stream to make sure we can still seek in that state */
decoder_client_data.quiet = true;
if(!FLAC__stream_decoder_process_until_end_of_stream(decoder))
return die_s_("FLAC__stream_decoder_process_until_end_of_stream() FAILED", decoder);
decoder_client_data.quiet = false;
printf("stream decoder state is %s\n", FLAC__stream_decoder_get_resolved_state_string(decoder));
if(FLAC__stream_decoder_get_state(decoder) != FLAC__STREAM_DECODER_END_OF_STREAM)
return die_s_("expected FLAC__STREAM_DECODER_END_OF_STREAM", decoder);
}
printf("file's total_samples is %" PRIu64 "\n", decoder_client_data.total_samples);
n = (long int)decoder_client_data.total_samples;
if(n == 0 && total_samples >= 0)
n = (long int)total_samples;
/* if we don't have a total samples count, just guess based on the file size */
/* @@@ for is_ogg we should get it from last page's granulepos */
if(n == 0) {
/* 8 would imply no compression, 9 guarantees that we will get some samples off the end of the stream to test that case */
n = 9 * filesize / (decoder_client_data.channels * decoder_client_data.bits_per_sample);
}
printf("Begin seek barrage, count=%u\n", count);
for (i = 0; !stop_signal_ && (count == 0 || i < count); i++) {
FLAC__uint64 pos;
/* for the first 10, seek to the first 10 samples */
if (n >= 10 && i < 10) {
pos = i;
}
/* for the second 10, seek to the last 10 samples */
else if (n >= 10 && i < 20) {
pos = n - 1 - (i-10);
}
/* for the third 10, seek past the end and make sure we fail properly as expected */
else if (i < 30) {
pos = n + (i-20);
}
else {
pos = (FLAC__uint64)(local_rand_() % n);
}
printf("#%u:seek(%" PRIu64 ")... ", i, pos);
fflush(stdout);
if(!FLAC__stream_decoder_seek_absolute(decoder, pos)) {
if(pos >= (FLAC__uint64)n)
printf("seek past end failed as expected... ");
else if(decoder_client_data.total_samples == 0 && total_samples <= 0)
printf("seek failed, assuming it was past EOF... ");
else
return die_s_("FLAC__stream_decoder_seek_absolute() FAILED", decoder);
if(!FLAC__stream_decoder_flush(decoder))
return die_s_("FLAC__stream_decoder_flush() FAILED", decoder);
}
else if(read_mode == 1) {
printf("decode_frame... ");
fflush(stdout);
if(!FLAC__stream_decoder_process_single(decoder))
return die_s_("FLAC__stream_decoder_process_single() FAILED", decoder);
printf("decode_frame... ");
fflush(stdout);
if(!FLAC__stream_decoder_process_single(decoder))
return die_s_("FLAC__stream_decoder_process_single() FAILED", decoder);
}
else if(read_mode == 2) {
printf("decode_all... ");
fflush(stdout);
decoder_client_data.quiet = true;
if(!FLAC__stream_decoder_process_until_end_of_stream(decoder))
return die_s_("FLAC__stream_decoder_process_until_end_of_stream() FAILED", decoder);
decoder_client_data.quiet = false;
}
printf("OK\n");
fflush(stdout);
}
stop_signal_ = false;
if(FLAC__stream_decoder_get_state(decoder) != FLAC__STREAM_DECODER_UNINITIALIZED) {
if(!FLAC__stream_decoder_finish(decoder))
return die_s_("FLAC__stream_decoder_finish() FAILED", decoder);
}
FLAC__stream_decoder_delete(decoder);
printf("\nPASSED!\n");
return true;
}
int main(int argc, char *argv[])
{
const char *flacfilename, *rawfilename = 0;
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uint32_t count = 0, read_mode;
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FLAC__int64 samples = -1;
FLAC__off_t flacfilesize;
FLAC__int32 *pcm[2] = { 0, 0 };
FLAC__bool ok = true;
static const char * const usage = "usage: test_seeking file.flac [#seeks] [#samples-in-file.flac] [file.raw]\n";
if (argc < 2 || argc > 5) {
fputs(usage, stderr);
return 1;
}
flacfilename = argv[1];
if (argc > 2)
count = strtoul(argv[2], 0, 10);
if (argc > 3)
samples = strtoull(argv[3], 0, 10);
if (argc > 4)
rawfilename = argv[4];
if (count < 30)
fprintf(stderr, "WARNING: random seeks don't kick in until after 30 preprogrammed ones\n");
#if !defined _MSC_VER && !defined __MINGW32__
{
struct timeval tv;
if (gettimeofday(&tv, 0) < 0) {
fprintf(stderr, "WARNING: couldn't seed RNG with time\n");
tv.tv_usec = 4321;
}
srandom(tv.tv_usec);
}
#else
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srand((uint32_t)time(0));
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#endif
flacfilesize = get_filesize_(flacfilename);
if (flacfilesize < 0) {
fprintf(stderr, "ERROR: can't determine filesize for %s\n", flacfilename);
return 1;
}
if (rawfilename && !read_pcm_(pcm, rawfilename, flacfilename)) {
free(pcm[0]);
free(pcm[1]);
return 1;
}
(void) signal(SIGINT, our_sigint_handler_);
for (read_mode = 0; ok && read_mode <= 2; read_mode++) {
/* no need to do "decode all" read_mode if PCM checking is available */
if (rawfilename && read_mode > 1)
continue;
if (strlen(flacfilename) > 4 && (0 == strcmp(flacfilename+strlen(flacfilename)-4, ".oga") || 0 == strcmp(flacfilename+strlen(flacfilename)-4, ".ogg"))) {
#if FLAC__HAS_OGG
ok = seek_barrage(/*is_ogg=*/true, flacfilename, flacfilesize, count, samples, read_mode, rawfilename? pcm : 0);
#else
fprintf(stderr, "ERROR: Ogg FLAC not supported\n");
ok = false;
#endif
}
else {
ok = seek_barrage(/*is_ogg=*/false, flacfilename, flacfilesize, count, samples, read_mode, rawfilename? pcm : 0);
}
}
free(pcm[0]);
free(pcm[1]);
return ok? 0 : 2;
}