ref: a83af858c98094dfc6fed1d16585bb5e800b456d
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"
#include "picture.h"
#include "tagcompare.h"
#if defined WIN32 || defined _WIN32
# include "unicode_support.h"
#else
# define fopen_utf8(_x,_y) fopen((_x),(_y))
# define argc_utf8 argc
# define argv_utf8 argv
#endif
#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);
}
#define READ_U32_BE(buf) \
(((ogg_uint32_t)(buf)[0]<<24)|((buf)[1]<<16)|((buf)[2]<<8)|(buf)[3])
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 tag in "
"comment %d (stream %d): \"%s\"\n"),
i, stream->num, comment);
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(sep - comment == 22
&& tagcompare(comment, "METADATA_BLOCK_PICTURE", 22) == 0) {
ogg_uint32_t picture_type;
ogg_uint32_t mime_type_length;
ogg_uint32_t description_length;
ogg_uint32_t width;
ogg_uint32_t height;
ogg_uint32_t depth;
ogg_uint32_t colors;
ogg_uint32_t image_length;
ogg_uint32_t file_width;
ogg_uint32_t file_height;
ogg_uint32_t file_depth;
ogg_uint32_t file_colors;
unsigned char *data;
int data_sz;
int len;
int is_url;
int format;
int has_palette;
int colors_set;
len=comment_length - (sep+1-comment);
/*Decode the Base64 encoded data.*/
if(len&3) {
oi_warn(_("WARNING: Illegal Base64 length in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): %i is not "
"divisible by 4\n"), i, stream->num, len);
}
len>>=2;
data_sz=3*len;
if(data_sz > 2) {
if(comment[comment_length - 1] == '=') {
data_sz--;
if(comment[comment_length - 2] == '=') {
data_sz--;
}
}
}
data=data_sz>0?(unsigned char *)malloc(data_sz*sizeof(*data)):NULL;
for (j = 0; j < len; j++) {
ogg_uint32_t value;
int k;
value = 0;
for (k = 1; k <= 4; k++) {
unsigned c;
unsigned d;
c = (unsigned char)sep[4*j+k];
if(c == '+') {
d = 62;
}
else if(c == '/') {
d = 63;
}
else if(c >= '0' && c <= '9') {
d = 52+c-'0';
}
else if(c >= 'a' && c <= 'z') {
d = 26+c-'a';
}
else if(c >= 'A' && c <= 'Z') {
d = c-'A';
}
else if(c == '=') {
if(3*j+k-1 < data_sz) {
oi_warn(_("WARNING: Terminating '=' in illegal "
"position in Base64 encoded "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"%i characters before the end.\n"), i,
stream->num, data_sz - (3*j+k-1));
free(data);
return;
}
d = 0;
}
else {
oi_warn(_("WARNING: Illegal Base64 character in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"'%c' (0x%02X)\n"), i, stream->num,
(char)(c<0x20||c>0x7E?'?':c), c);
free(data);
return;
}
value = value << 6 | d;
}
data[3*j] = (unsigned char)(value>>16);
if(3*j+1 < data_sz) {
data[3*j+1] = (unsigned char)(value>>8);
if(3*j+2 < data_sz) {
data[3*j+2] = (unsigned char)value;
}
}
}
/*Now validate the METADATA_BLOCK_PICTURE structure.*/
if(data_sz < 32) {
oi_warn(_("WARNING: Not enough data for "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"expected at least 32 bytes, got %i\n"), i, stream->num,
data_sz);
free(data);
return;
}
j = 0;
picture_type = READ_U32_BE(data+j);
if(picture_type > 20) {
oi_warn(_("WARNING: Unknown picture type in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"%li\n"), i, stream->num, (long)picture_type);
broken = 1;
}
if(picture_type >= 1 && picture_type <= 2) {
if(stream->seen_file_icons & picture_type) {
oi_warn(_("WARNING: Duplicate picture type in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
" %s\n"), i, stream->num, picture_type == 1 ?
_("only one picture of type 1 (32x32 icon) allowed") :
_("only one picture of type 2 (icon) allowed"));
broken = 1;
}
stream->seen_file_icons |= picture_type;
}
j += 4;
mime_type_length = READ_U32_BE(data+j);
if(mime_type_length > (size_t)data_sz-32) {
oi_warn(_("WARNING: Invalid media type length in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"%lu bytes when %i are available\n"), i, stream->num,
(long)mime_type_length, data_sz-32);
free(data);
return;
}
for (j += 4; j < 8+(int)mime_type_length; j++) {
if(data[j] < 0x20 || data[j] > 0x7E) {
oi_warn(_("WARNING: Invalid character in media type of "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"0x%02X\n"), i, stream->num, data[j]);
broken = 1;
}
}
description_length = READ_U32_BE(data+j);
if(description_length > (size_t)data_sz-mime_type_length-32) {
oi_warn(_("WARNING: Invalid description length in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"%lu bytes when %i are available\n"), i, stream->num,
(long)description_length, data_sz-mime_type_length-32);
free(data);
return;
}
/*TODO: Validate that description is UTF-8.*/
j += 4+description_length;
width = READ_U32_BE(data+j);
j += 4;
height = READ_U32_BE(data+j);
j += 4;
depth = READ_U32_BE(data+j);
j += 4;
colors = READ_U32_BE(data+j);
j += 4;
/*If any value is non-zero, then they all MUST be valid values, and
so colors should be treated as set (even if zero).*/
colors_set = width != 0 || height != 0 || depth != 0 || colors != 0;
/*This isn't triggered if colors == 0, since that can be a valid
value.*/
if((width == 0 || height == 0 || depth == 0) && colors_set) {
oi_warn(_("WARNING: Invalid picture parameters in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"width (%i), height (%i), depth (%i), and colors (%i) MUST "
"either be set to valid values or all set to 0\n"), i,
stream->num, (int)width, (int)height, (int)depth,
(int)colors);
broken = 1;
}
image_length = READ_U32_BE(data+j);
j += 4;
/*This one should match exactly.*/
if(image_length != (size_t)data_sz-j) {
oi_warn(_("WARNING: Invalid image data size in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"%lu bytes when %i are available\n"), i, stream->num,
(long)image_length, data_sz-j);
free(data);
return;
}
is_url = 0;
format = -1;
if(mime_type_length == 10
&& tagcompare((const char*)data+8, "image/jpeg",
mime_type_length) == 0) {
if(!is_jpeg(data+j, image_length)) {
oi_warn(_("WARNING: Invalid image data in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"media type is %.*s but image does not appear to be "
"JPEG\n"), i, stream->num, mime_type_length, data+8);
free(data);
return;
}
format = PIC_FORMAT_JPEG;
}
else if(mime_type_length == 9
&& tagcompare((const char *)data+8, "image/png",
mime_type_length) == 0) {
if(!is_png(data+j, image_length)) {
oi_warn(_("WARNING: Invalid image data in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"media type is %.*s but image does not appear to be "
"PNG\n"), i, stream->num, mime_type_length, data+8);
free(data);
return;
}
format = PIC_FORMAT_PNG;
}
else if(mime_type_length == 9
&& tagcompare((const char *)data+8, "image/gif",
mime_type_length) == 0) {
if(!is_gif(data+j, image_length)) {
oi_warn(_("WARNING: Invalid image data in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"media type is %.*s but image does not appear to be "
"PNG\n"), i, stream->num, mime_type_length, data+8);
free(data);
return;
}
format = PIC_FORMAT_GIF;
}
else if(mime_type_length == 3
&& strncmp((const char *)data+8, "-->", mime_type_length) == 0) {
is_url = 1;
/*TODO: validate URL.*/
}
else if(mime_type_length == 0 || (mime_type_length == 6 &&
tagcompare((const char *)data+8, "image/",
mime_type_length) == 0)) {
if(is_jpeg(data+j, image_length)) {
format = PIC_FORMAT_JPEG;
}
else if(is_png(data+j, image_length)) {
format = PIC_FORMAT_PNG;
}
else if(is_gif(data+j, image_length)) {
format = PIC_FORMAT_GIF;
}
else {
oi_warn(_("WARNING: Unknown image format in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"\"%.*s\" may not be well-supported\n"), i, stream->num,
mime_type_length, data+8);
}
}
else {
oi_warn(_("WARNING: Unknown media type in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"\"%.*s\" may not be well-supported\n"), i, stream->num,
mime_type_length, data+8);
}
file_width = file_height = file_depth = file_colors = 0;
has_palette = -1;
switch(format) {
case PIC_FORMAT_JPEG:
extract_jpeg_params(data+j, image_length,
&file_width, &file_height, &file_depth, &file_colors,
&has_palette);
break;
case PIC_FORMAT_PNG:
extract_png_params(data+j, image_length,
&file_width, &file_height, &file_depth, &file_colors,
&has_palette);
break;
case PIC_FORMAT_GIF:
extract_gif_params(data+j, image_length,
&file_width, &file_height, &file_depth, &file_colors,
&has_palette);
break;
}
if(format >= 0 && has_palette < 0) {
/*We should have been able to affirmatively determine whether or
not there was a palette if we parsed the image successfully.*/
oi_warn(_("WARNING: Could not parse image parameters in"
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"possibly corrupt image?\n"), i, stream->num);
broken = 1;
}
if(width && width != file_width) {
oi_warn(_("WARNING: Mismatched picture parameters in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"width declared as %u but appears to be %u\n"), i,
stream->num, (unsigned)width, (unsigned)file_width);
broken = 1;
}
if(height && height != file_height) {
oi_warn(_("WARNING: Mismatched picture parameters in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"height declared as %u but appears to be %u\n"), i,
stream->num, (unsigned)height, (unsigned)file_height);
broken = 1;
}
if(depth && depth != file_depth) {
oi_warn(_("WARNING: Mismatched picture parameters in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"depth declared as %u but appears to be %u\n"), i,
stream->num, (unsigned)depth, (unsigned)file_depth);
broken = 1;
}
if(has_palette >= 0 && colors_set && colors != file_colors) {
oi_warn(_("WARNING: Mismatched picture parameters in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"palette size declared as %u but appears to be %u\n"), i,
stream->num, (unsigned)colors, (unsigned)file_colors);
broken = 1;
}
if(picture_type == 1
&& ((is_url && (width != 0 || height != 0)
&& (width != 32 || height != 32))
|| (!is_url && (file_width != 32 || file_height != 32)))) {
oi_warn(_("WARNING: Invalid picture in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"picture of type 1 (32x32 icon) MUST be a 32x32 PNG, but "
"the image has dimensions %ux%u\n"), i, stream->num,
(unsigned)is_url?width:file_width,
(unsigned)is_url?height:file_height);
broken = 1;
}
if(picture_type == 1 && !is_url && format != PIC_FORMAT_PNG) {
oi_warn(_("WARNING: Invalid picture in "
"METADATA_BLOCK_PICTURE comment %d (stream %d): "
"picture of type 1 (32x32 icon) MUST be a 32x32 PNG, but "
"the image does not appear to be a PNG\n"), i, stream->num);
broken = 1;
}
/*Print the contents of the block using the same format as the
SPECIFICATION argument to opusenc/flac/etc. (except without an image
filename, since we don't know the original).*/
oi_info("\t%.*s%u|%.*s|%.*s|%ux%ux%u",
(int)(sep+1-comment), comment, (unsigned)picture_type,
mime_type_length, data+8,
description_length, data+12+mime_type_length,
(unsigned)width, (unsigned)height, (unsigned)depth);
if(colors) {
oi_info("/%u", (unsigned)colors);
}
if(is_url) {
oi_info("|%.*s\n", image_length, data+j);
}
else {
oi_info("|<%u bytes of image data>\n",(unsigned)image_length);
}
free(data);
return;
}
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;
stream->seen_file_icons = 0;
{
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 *ogsync, ogg_page *page,
ogg_int64_t *written)
{
int ret;
char *buffer;
size_t bytes;
while((ret = ogg_sync_pageseek(ogsync, 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 %" PRId64 " 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(ogsync, CHUNK);
bytes = fread(buffer, 1, CHUNK, f);
if(bytes == 0) {
ogg_sync_wrote(ogsync, 0);
return 0;
}
ogg_sync_wrote(ogsync, (long)bytes);
*written += bytes;
}
return 1;
}
static void process_file(char *filename)
{
FILE *file = fopen_utf8(filename, "rb");
ogg_sync_state ogsync;
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(&ogsync);
while(get_next_page(file, &ogsync, &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(&ogsync);
fclose(file);
}
static void version(void)
{
printf(_("opusinfo from %s %s\n"), PACKAGE_NAME, PACKAGE_VERSION);
}
static void usage(void)
{
version();
printf(_(" by the Xiph.Org Foundation (https://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;
#ifdef WIN_UNICODE
int argc_utf8;
char **argv_utf8;
(void)argc;
(void)argv;
init_console_utf8();
init_commandline_arguments_utf8(&argc_utf8, &argv_utf8);
#endif
if(argc_utf8 < 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"));
#ifdef WIN_UNICODE
uninit_console_utf8();
#endif
exit(1);
}
while((ret = getopt(argc_utf8, argv_utf8, "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_utf8) {
fprintf(stderr,
_("No input files specified. \"opusinfo -h\" for help\n"));
return 1;
}
ret = 0;
for(f=optind; f < argc_utf8; f++) {
flawed = 0;
process_file(argv_utf8[f]);
if(flawed != 0)
ret = flawed;
}
#ifdef WIN_UNICODE
free_commandline_arguments_utf8(&argc_utf8, &argv_utf8);
uninit_console_utf8();
#endif
return ret;
}