ref: 1484f3991aee35544979633e1a94a971ae790127
dir: /src/opusinfo.c/
/* Opusinfo
*
* A tool to describe opus file contents and metadata.
*
* This is a fork of ogginfo from the vorbis-tools package
* which has been cut down to only have opus support.
*
* Ogginfo is
* Copyright 2002-2005 Michael Smith <msmith@xiph.org>
* Licensed under the GNU GPL, distributed with this program.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <stdarg.h>
#include <getopt.h>
#include <math.h>
#include <ogg/ogg.h>
/*No NLS support for now*/
#define _(X) (X)
#include "opusinfo.h"
#include "opus_header.h"
#include "info_opus.h"
#define CHUNK 4500
static int printlots = 0;
static int printinfo = 1;
static int printwarn = 1;
static int verbose = 1;
static int flawed;
#define CONSTRAINT_PAGE_AFTER_EOS 1
#define CONSTRAINT_MUXING_VIOLATED 2
static stream_set *create_stream_set(void) {
stream_set *set = calloc(1, sizeof(stream_set));
set->streams = calloc(5, sizeof(stream_processor));
set->allocated = 5;
set->used = 0;
return set;
}
void oi_info(char *format, ...)
{
va_list ap;
if(!printinfo)
return;
va_start(ap, format);
vfprintf(stdout, format, ap);
va_end(ap);
}
void oi_warn(char *format, ...)
{
va_list ap;
flawed = 1;
if(!printwarn)
return;
va_start(ap, format);
vfprintf(stdout, format, ap);
va_end(ap);
}
void oi_error(char *format, ...)
{
va_list ap;
flawed = 1;
va_start(ap, format);
vfprintf(stdout, format, ap);
va_end(ap);
}
void check_xiph_comment(stream_processor *stream, int i, const char *comment,
int comment_length)
{
char *sep = strchr(comment, '=');
int j;
int broken = 0;
unsigned char *val;
int bytes;
int remaining;
if(sep == NULL) {
oi_warn(_("WARNING: Comment %d in stream %d has invalid "
"format, does not contain '=': \"%s\"\n"),
i, stream->num, comment);
return;
}
for(j=0; j < sep-comment; j++) {
if(comment[j] < 0x20 || comment[j] > 0x7D) {
oi_warn(_("WARNING: Invalid comment fieldname in "
"comment %d (stream %d): \"%s\"\n"),
i, stream->num, comment);
broken = 1;
break;
}
}
if(broken)
return;
val = (unsigned char *)comment;
j = sep-comment+1;
while(j < comment_length)
{
remaining = comment_length - j;
if((val[j] & 0x80) == 0)
bytes = 1;
else if((val[j] & 0x40) == 0x40) {
if((val[j] & 0x20) == 0)
bytes = 2;
else if((val[j] & 0x10) == 0)
bytes = 3;
else if((val[j] & 0x08) == 0)
bytes = 4;
else if((val[j] & 0x04) == 0)
bytes = 5;
else if((val[j] & 0x02) == 0)
bytes = 6;
else {
oi_warn(_("WARNING: Illegal UTF-8 sequence in "
"comment %d (stream %d): length marker wrong\n"),
i, stream->num);
broken = 1;
break;
}
}
else {
oi_warn(_("WARNING: Illegal UTF-8 sequence in comment "
"%d (stream %d): length marker wrong\n"), i, stream->num);
broken = 1;
break;
}
if(bytes > remaining) {
oi_warn(_("WARNING: Illegal UTF-8 sequence in comment "
"%d (stream %d): too few bytes\n"), i, stream->num);
broken = 1;
break;
}
switch(bytes) {
case 1:
/* No more checks needed */
break;
case 2:
if((val[j+1] & 0xC0) != 0x80)
broken = 1;
if((val[j] & 0xFE) == 0xC0)
broken = 1;
break;
case 3:
if(!((val[j] == 0xE0 && val[j+1] >= 0xA0 && val[j+1] <= 0xBF &&
(val[j+2] & 0xC0) == 0x80) ||
(val[j] >= 0xE1 && val[j] <= 0xEC &&
(val[j+1] & 0xC0) == 0x80 &&
(val[j+2] & 0xC0) == 0x80) ||
(val[j] == 0xED && val[j+1] >= 0x80 &&
val[j+1] <= 0x9F &&
(val[j+2] & 0xC0) == 0x80) ||
(val[j] >= 0xEE && val[j] <= 0xEF &&
(val[j+1] & 0xC0) == 0x80 &&
(val[j+2] & 0xC0) == 0x80)))
broken = 1;
if(val[j] == 0xE0 && (val[j+1] & 0xE0) == 0x80)
broken = 1;
break;
case 4:
if(!((val[j] == 0xF0 && val[j+1] >= 0x90 &&
val[j+1] <= 0xBF &&
(val[j+2] & 0xC0) == 0x80 &&
(val[j+3] & 0xC0) == 0x80) ||
(val[j] >= 0xF1 && val[j] <= 0xF3 &&
(val[j+1] & 0xC0) == 0x80 &&
(val[j+2] & 0xC0) == 0x80 &&
(val[j+3] & 0xC0) == 0x80) ||
(val[j] == 0xF4 && val[j+1] >= 0x80 &&
val[j+1] <= 0x8F &&
(val[j+2] & 0xC0) == 0x80 &&
(val[j+3] & 0xC0) == 0x80)))
broken = 1;
if(val[j] == 0xF0 && (val[j+1] & 0xF0) == 0x80)
broken = 1;
break;
/* 5 and 6 aren't actually allowed at this point */
case 5:
broken = 1;
break;
case 6:
broken = 1;
break;
}
if(broken) {
char *simple = malloc (comment_length + 1);
char *seq = malloc (comment_length * 3 + 1);
static char hex[] = {'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
int k, c1 = 0, c2 = 0;
for (k = 0; k < comment_length; k++) {
seq[c1++] = hex[((unsigned char)comment[k]) >> 4];
seq[c1++] = hex[((unsigned char)comment[k]) & 0xf];
seq[c1++] = ' ';
if(comment[k] < 0x20 || comment[k] > 0x7D)
simple[c2++] = '?';
else
simple[c2++] = comment[k];
}
seq[c1] = 0;
simple[c2] = 0;
oi_warn(_("WARNING: Illegal UTF-8 sequence in comment "
"%d (stream %d): invalid sequence \"%s\": %s\n"), i,
stream->num, simple, seq);
broken = 1;
free (simple);
free (seq);
break;
}
j += bytes;
}
if(!broken) {
oi_info("\t%s\n", comment);
}
}
static void process_null(stream_processor *stream, ogg_page *page)
{
/* This is for invalid streams. */
(void)stream;
(void)page;
}
static void process_other(stream_processor *stream, ogg_page *page )
{
ogg_packet packet;
ogg_stream_pagein(&stream->os, page);
while(ogg_stream_packetout(&stream->os, &packet) > 0) {
/* Should we do anything here? Currently, we don't */
}
}
static void free_stream_set(stream_set *set)
{
int i;
for(i=0; i < set->used; i++) {
if(!set->streams[i].end) {
oi_warn(_("WARNING: EOS not set on stream %d (normal for live streams)\n"),
set->streams[i].num);
if(set->streams[i].process_end)
set->streams[i].process_end(&set->streams[i]);
}
ogg_stream_clear(&set->streams[i].os);
}
free(set->streams);
free(set);
}
static int streams_open(stream_set *set)
{
int i;
int res=0;
for(i=0; i < set->used; i++) {
if(!set->streams[i].end)
res++;
}
return res;
}
static void null_start(stream_processor *stream)
{
stream->process_end = NULL;
stream->type = "invalid";
stream->process_page = process_null;
}
static void other_start(stream_processor *stream, char *type)
{
if(type)
stream->type = type;
else
stream->type = "unknown";
stream->process_page = process_other;
stream->process_end = NULL;
}
static stream_processor *find_stream_processor(stream_set *set, ogg_page *page)
{
ogg_uint32_t serial = ogg_page_serialno(page);
int i;
int invalid = 0;
int constraint = 0;
stream_processor *stream;
for(i=0; i < set->used; i++) {
if(serial == set->streams[i].serial) {
/* We have a match! */
stream = &(set->streams[i]);
set->in_headers = 0;
/* if we have detected EOS, then this can't occur here. */
if(stream->end) {
stream->isillegal = 1;
stream->constraint_violated = CONSTRAINT_PAGE_AFTER_EOS;
return stream;
}
stream->isnew = 0;
stream->start = ogg_page_bos(page);
stream->end = ogg_page_eos(page);
stream->serial = serial;
return stream;
}
}
/* If there are streams open, and we've reached the end of the
* headers, then we can't be starting a new stream.
* XXX: might this sometimes catch ok streams if EOS flag is missing,
* but the stream is otherwise ok?
*/
if(streams_open(set) && !set->in_headers) {
constraint = CONSTRAINT_MUXING_VIOLATED;
invalid = 1;
}
set->in_headers = 1;
if(set->allocated < set->used)
stream = &set->streams[set->used];
else {
set->allocated += 5;
set->streams = realloc(set->streams, sizeof(stream_processor)*
set->allocated);
stream = &set->streams[set->used];
}
set->used++;
stream->num = set->used; /* We count from 1 */
stream->isnew = 1;
stream->isillegal = invalid;
stream->constraint_violated = constraint;
{
int res;
int has_oi_supported=0;
ogg_packet packet;
/* We end up processing the header page twice, but that's ok. */
ogg_stream_init(&stream->os, serial);
ogg_stream_pagein(&stream->os, page);
res = ogg_stream_packetout(&stream->os, &packet);
if(res <= 0) {
oi_warn(_("WARNING: Invalid header page, no packet found\n"));
null_start(stream);
}
else if(packet.bytes >= 19 && memcmp(packet.packet, "OpusHead", 8)==0)
info_opus_start(stream);
else if(packet.bytes >= 7 && memcmp(packet.packet, "\x01vorbis", 7)==0) {
other_start(stream, "Vorbis");
has_oi_supported=1;
} else if(packet.bytes >= 7 && memcmp(packet.packet, "\x80theora", 7)==0) {
other_start(stream, "Theora");
has_oi_supported=1;
} else if(packet.bytes >= 8 && memcmp(packet.packet, "OggMIDI\0", 8)==0)
other_start(stream, "MIDI");
else if(packet.bytes >= 5 && memcmp(packet.packet, "\177FLAC", 5)==0)
other_start(stream, "FLAC");
else if(packet.bytes == 4 && memcmp(packet.packet, "fLaC", 4)==0)
other_start(stream, "FLAC (legacy)");
else if(packet.bytes >= 8 && memcmp(packet.packet, "Speex ", 8)==0)
other_start(stream, "speex");
else if(packet.bytes >= 8 && memcmp(packet.packet, "fishead\0", 8)==0)
other_start(stream, "skeleton");
else if(packet.bytes >= 5 && memcmp(packet.packet, "BBCD\0", 5)==0)
other_start(stream, "dirac");
else if(packet.bytes >= 8 && memcmp(packet.packet, "KW-DIRAC", 8)==0)
other_start(stream, "dirac (legacy)");
else if(packet.bytes >= 8 && memcmp(packet.packet, "\x80kate\0\0\0", 8)==0) {
other_start(stream, "Kate");
has_oi_supported=1;
} else
other_start(stream, NULL);
res = ogg_stream_packetout(&stream->os, &packet);
if(res > 0) {
oi_warn(_("WARNING: Invalid header page in stream %d, "
"contains multiple packets\n"), stream->num);
}
if(has_oi_supported)oi_info(_("Use ogginfo for more information on this file.\n"));
/* re-init, ready for processing */
ogg_stream_clear(&stream->os);
ogg_stream_init(&stream->os, serial);
}
stream->start = ogg_page_bos(page);
stream->end = ogg_page_eos(page);
stream->serial = serial;
stream->shownillegal = 0;
stream->seqno = ogg_page_pageno(page);
if(stream->serial == 0 || stream->serial == 0xFFFFFFFFUL) {
oi_info(_("Note: Stream %d has serial number %d, which is legal but may "
"cause problems with some tools.\n"), stream->num,
stream->serial);
}
return stream;
}
static int get_next_page(FILE *f, ogg_sync_state *sync, ogg_page *page,
ogg_int64_t *written)
{
int ret;
char *buffer;
int bytes;
while((ret = ogg_sync_pageseek(sync, page)) <= 0) {
if(ret < 0) {
/* unsynced, we jump over bytes to a possible capture - we don't need to read more just yet */
oi_warn(_("WARNING: Hole in data (%d bytes) found at approximate offset %" I64FORMAT " bytes. Corrupted Ogg.\n"), -ret, *written);
continue;
}
/* zero return, we didn't have enough data to find a whole page, read */
buffer = ogg_sync_buffer(sync, CHUNK);
bytes = fread(buffer, 1, CHUNK, f);
if(bytes <= 0) {
ogg_sync_wrote(sync, 0);
return 0;
}
ogg_sync_wrote(sync, bytes);
*written += bytes;
}
return 1;
}
static void process_file(char *filename) {
FILE *file = fopen(filename, "rb");
ogg_sync_state sync;
ogg_page page;
stream_set *processors = create_stream_set();
int gotpage = 0;
ogg_int64_t written = 0;
if(!file) {
oi_error(_("Error opening input file \"%s\": %s\n"), filename,
strerror(errno));
return;
}
printf(_("Processing file \"%s\"...\n\n"), filename);
ogg_sync_init(&sync);
while(get_next_page(file, &sync, &page, &written)) {
stream_processor *p = find_stream_processor(processors, &page);
gotpage = 1;
if(!p) {
oi_error(_("Could not find a processor for stream, bailing\n"));
return;
}
if(p->isillegal && !p->shownillegal) {
char *constraint;
switch(p->constraint_violated) {
case CONSTRAINT_PAGE_AFTER_EOS:
constraint = _("Page found for stream after EOS flag");
break;
case CONSTRAINT_MUXING_VIOLATED:
constraint = _("Ogg muxing constraints violated, new "
"stream before EOS of all previous streams");
break;
default:
constraint = _("Error unknown.");
}
oi_warn(_("WARNING: illegally placed page(s) for logical stream %d\n"
"This indicates a corrupt Ogg file: %s.\n"),
p->num, constraint);
p->shownillegal = 1;
/* If it's a new stream, we want to continue processing this page
* anyway to suppress additional spurious errors
*/
if(!p->isnew)
continue;
}
if(p->isnew) {
oi_info(_("New logical stream (#%d, serial: %08x): type %s\n"),
p->num, p->serial, p->type);
if(!p->start)
oi_warn(_("WARNING: stream start flag not set on stream %d\n"),
p->num);
}
else if(p->start)
oi_warn(_("WARNING: stream start flag found in mid-stream "
"on stream %d\n"), p->num);
if(p->seqno++ != ogg_page_pageno(&page)) {
if(!p->lostseq)
oi_warn(_("WARNING: sequence number gap in stream %d. Got page "
"%ld when expecting page %ld. Indicates missing data.%s\n"
), p->num, ogg_page_pageno(&page), p->seqno - 1, p->seqno-1==2?_(" (normal for live streams)"):"");
p->seqno = ogg_page_pageno(&page);
p->lostseq = 1;
}
else
p->lostseq = 0;
if(!p->isillegal) {
p->process_page(p, &page);
if(p->end) {
if(p->process_end)
p->process_end(p);
oi_info(_("Logical stream %d ended\n"), p->num);
p->isillegal = 1;
p->constraint_violated = CONSTRAINT_PAGE_AFTER_EOS;
}
}
}
if(!gotpage)
oi_error(_("ERROR: No Ogg data found in file \"%s\".\n"
"Input probably not Ogg.\n"), filename);
free_stream_set(processors);
ogg_sync_clear(&sync);
fclose(file);
}
static void version (void) {
printf (_("opusinfo from %s %s\n"), PACKAGE, VERSION);
}
static void usage(void) {
version ();
printf (_(" by the Xiph.Org Foundation (http://www.xiph.org/)\n\n"));
printf(_("(c) 2003-2005 Michael Smith <msmith@xiph.org>\n"
"(c) 2012 Gregory Maxwell <greg@xiph.org>\n\n"
"Opusinfo is a fork of ogginfo from the vorbis-tools package\n"
"which has been cut down to only support opus files.\n\n"
"Usage: opusinfo [flags] file1.opus [file2.opus ... fileN.opus]\n"
"Flags supported:\n"
"\t-h Show this help message.\n"
"\t-q Make less verbose. Once will remove detailed informative\n"
"\t messages, twice will remove warnings.\n"
"\t-v Make more verbose. This may enable more detailed checks\n"
"\t for some stream types.\n"));
printf (_("\t-V Output version information and exit.\n"));
}
int main(int argc, char **argv) {
int f, ret;
if(argc < 2) {
fprintf(stdout,
_("Usage: opusinfo [flags] file1.opus [file2.opus ... fileN.opus]\n"
"\n"
"opusinfo is a tool for printing information about Opus files\n"
"and for diagnosing problems with them.\n"
"Full help shown with \"opusinfo -h\".\n"));
exit(1);
}
while((ret = getopt(argc, argv, "hqvV")) >= 0) {
switch(ret) {
case 'h':
usage();
return 0;
case 'V':
version();
return 0;
case 'v':
verbose++;
break;
case 'q':
verbose--;
break;
}
}
if(verbose > 1)
printlots = 1;
if(verbose < 1)
printinfo = 0;
if(verbose < 0)
printwarn = 0;
if(optind >= argc) {
fprintf(stderr,
_("No input files specified. \"opusinfo -h\" for help\n"));
return 1;
}
ret = 0;
for(f=optind; f < argc; f++) {
flawed = 0;
process_file(argv[f]);
if(flawed != 0)
ret = flawed;
}
return ret;
}