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-rw-r--r--src/test_seeking/main.c473
1 files changed, 473 insertions, 0 deletions
diff --git a/src/test_seeking/main.c b/src/test_seeking/main.c
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--- /dev/null
+++ b/src/test_seeking/main.c
@@ -0,0 +1,473 @@
+/* test_seeking - Seeking tester for libFLAC
+ * Copyright (C) 2004-2009 Josh Coalson
+ * Copyright (C) 2011-2023 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;
+ uint32_t channels;
+ uint32_t bits_per_sample;
+ 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");
+
+ printf(", state = %u (%s)\n", (uint32_t)state, FLAC__StreamDecoderStateString[state]);
+
+ return false;
+}
+
+static uint32_t local_rand_(void)
+{
+#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;
+ uint32_t channels = 0, bps = 0, samples, i, j;
+
+ 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 = (uint32_t)(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 */
+ uint8_t c[2];
+ 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) {
+ uint32_t c, i, j;
+ for (c = 0; c < frame->header.channels; c++)
+ for (i = (uint32_t)frame->header.number.sample_number, j = 0; j < frame->header.blocksize; i++, j++)
+ 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) {
+ printf("ERROR: got error callback: err = %u (%s)\n", (uint32_t)status, FLAC__StreamDecoderErrorStatusString[status]);
+ dcd->error_occurred = true;
+ }
+}
+
+/* read mode:
+ * 0 - no read after seek
+ * 1 - read 2 frames
+ * 2 - read until end
+ */
+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)
+{
+ FLAC__StreamDecoder *decoder;
+ DecoderClientData decoder_client_data;
+ uint32_t i;
+ 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 = (long int)(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;
+ uint32_t count = 0, read_mode;
+ 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
+ srand((uint32_t)time(0));
+#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;
+}
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