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#include <stdio.h>
//#include "ppapi.h"
#include "pplib.h"
#include "assert.h"
static int usage (const char *argv0)
{
printf("pplib " pplib_version ", " pplib_author "\n");
printf("usage: %s file1.pdf file2.pdf ...\n", argv0);
return 0;
}
static void print_result_filter (ppstream *stream, int decode)
{
ppstream_filter info;
size_t i;
ppstream_filter_info(stream, &info, decode);
printf(" when %s: /Filter [", decode ? "uncompressed" : "compressed");
for (i = 0; i < info.count; ++i)
printf(" /%s", ppstream_filter_name[info.filters[i]]);
printf(" ]");
if (info.params != NULL)
{
printf(" /DecodeParms [");
for (i = 0; i < info.count; ++i)
printf(" %s", info.params[i] != NULL ? "<<...>>" : "null");
printf(" ]");
}
printf("\n");
}
static void print_stream_info (ppref *ref, ppstream *stream)
{
size_t length;
printf("object %lu %lu R\n", (unsigned long)ref->number, (unsigned long)ref->version);
if (stream->flags & PPSTREAM_FILTER)
printf(" filtered ");
else
printf(" plain ");
if (stream->flags & PPSTREAM_IMAGE)
printf("image ");
else
printf("stream ");
if (stream->flags & PPSTREAM_ENCRYPTED)
printf("encrypted ");
if (stream->flags & PPSTREAM_NOT_SUPPORTED)
printf("invalid ");
if (!ppdict_rget_uint(stream->dict, "Length", &length))
length = 0;
assert(stream->length == length);
printf("length %lu (/Length %lu)\n", (unsigned long)stream->length, (unsigned long)length);
print_result_filter(stream, 0);
print_result_filter(stream, 1);
}
static void check_stream_chunks (ppstream *stream)
{
size_t sum, size;
uint8_t *data;
const int decode[2] = {0, 1};
int d;
for (d = 0; d < 2; ++d)
{
for (sum = 0, data = ppstream_first(stream, &size, decode[d]); data != NULL; data = ppstream_next(stream, &size))
sum += size;
ppstream_done(stream);
ppstream_all(stream, &size, decode[d]);
ppstream_done(stream);
assert(sum == size);
printf(" %s chunks size [%lu]\n", (decode[d] ? "decoded" : "raw"), (unsigned long)size);
}
}
#define USE_BUFFERS_POOL 1
int main (int argc, const char **argv)
{
const char *filepath;
int a;
ppdoc *pdf;
ppxref *xref;
ppxsec *xsec;
size_t xi;
ppuint refnum;
ppref *ref;
if (argc < 2)
return usage(argv[0]);
if (USE_BUFFERS_POOL)
ppstream_init_buffers();
for (a = 1; a < argc; ++a)
{
filepath = argv[a];
printf("loading %s... ", filepath);
pdf = ppdoc_load(filepath);
if (pdf == NULL)
{
printf("failed\n");
continue;
}
printf("done.\n");
for (xref = ppdoc_xref(pdf); xref != NULL; xref = ppxref_prev(xref))
{
for (xi = 0, xsec = xref->sects; xi < xref->size; ++xi, ++xsec)
{
for (refnum = xsec->first, ref = xsec->refs; refnum <= xsec->last; ++refnum, ++ref)
{
if (ref->object.type != PPSTREAM)
continue;
print_stream_info(ref, ref->object.stream);
check_stream_chunks(ref->object.stream);
}
}
}
ppdoc_free(pdf);
}
if (USE_BUFFERS_POOL)
ppstream_free_buffers();
return 0;
}
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