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|
/*****************************************************************
|
| AP4 - Passthrough Writer Test
|
| Copyright 2002-2008 Axiomatic Systems, LLC
|
|
| This file is part of Bento4/AP4 (MP4 Atom Processing Library).
|
| Unless you have obtained Bento4 under a difference license,
| this version of Bento4 is Bento4|GPL.
| Bento4|GPL 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, or (at your option)
| any later version.
|
| Bento4|GPL 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 Bento4|GPL; see the file COPYING. If not, write to the
| Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
| 02111-1307, USA.
|
****************************************************************/
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#include "Ap4.h"
/*----------------------------------------------------------------------
| constants
+---------------------------------------------------------------------*/
#define BANNER "Passthrough Writer Test - Version 1.0\n"\
"(Bento4 Version " AP4_VERSION_STRING ")\n"\
"(c) 2002-2008 Axiomatic Systems, LLC"
/*----------------------------------------------------------------------
| PrintUsageAndExit
+---------------------------------------------------------------------*/
static void
PrintUsageAndExit()
{
fprintf(stderr,
BANNER
"\n\nusage: passthroughwritertest [options] <input> <output>\n");
exit(1);
}
/*----------------------------------------------------------------------
| CopyTrack
+---------------------------------------------------------------------*/
static void
CopyTrack(AP4_Movie* input_movie, AP4_Track* input_track, AP4_Movie* output_movie)
{
AP4_SyntheticSampleTable* sample_table = new AP4_SyntheticSampleTable();
AP4_SampleDescription* sample_description = input_track->GetSampleDescription(0);
#if 0
if (input_track->GetType() == AP4_Track::TYPE_VIDEO) {
AP4_ContainerAtom* schi = new AP4_ContainerAtom(AP4_ATOM_TYPE_SCHI);
sample_description = new AP4_ProtectedSampleDescription(
AP4_ATOM_TYPE_ENCV,
sample_description,
sample_description->GetFormat(),
AP4_PROTECTION_SCHEME_TYPE_OMA,
AP4_PROTECTION_SCHEME_VERSION_OMA_20,
"http://foo.bar/prot",
schi,
false);
delete schi;
}
#endif
// add the description to the table without transfering ownership
sample_table->AddSampleDescription(sample_description, false);
AP4_Sample sample;
AP4_Ordinal index = 0;
printf("Copying track %d\n", input_track->GetId());
while (AP4_SUCCEEDED(input_track->GetSample(index, sample))) {
if (sample.GetDescriptionIndex() != 0) {
// just for the test, fix that later... too lazy for now....
fprintf(stderr, "ERROR: unable to write tracks with more than one sample desc");
}
AP4_ByteStream* data_stream;
data_stream = sample.GetDataStream();
sample_table->AddSample(*data_stream,
sample.GetOffset(),
sample.GetSize(),
sample.GetDuration(),
sample.GetDescriptionIndex(),
sample.GetDts(),
sample.GetCtsDelta(),
sample.IsSync());
AP4_RELEASE(data_stream); // release our ref, the table has kept its own ref.
index++;
}
printf("Copied %d samples\n", index);
// create an output track
AP4_Track* output_track = new AP4_Track(input_track->GetType(),
sample_table,
input_track->GetId(),
input_movie->GetTimeScale(),
input_track->GetDuration(),
input_track->GetMediaTimeScale(),
input_track->GetMediaDuration(),
input_track->GetTrackLanguage(),
input_track->GetWidth(),
input_track->GetHeight());
// add the track to the output movie
output_movie->AddTrack(output_track);
}
/*----------------------------------------------------------------------
| main
+---------------------------------------------------------------------*/
int
main(int argc, char** argv)
{
if (argc != 3) {
PrintUsageAndExit();
}
const char* input_filename = argv[1];
const char* output_filename = argv[2];
// open the input
AP4_Result result;
AP4_ByteStream* input = NULL;
result = AP4_FileByteStream::Create(input_filename, AP4_FileByteStream::STREAM_MODE_READ, input);
if (AP4_FAILED(result)) {
fprintf(stderr, "ERROR: cannot open input file (%s)\n", input_filename);
return 1;
}
// open the output
AP4_ByteStream* output = NULL;
result = AP4_FileByteStream::Create(output_filename, AP4_FileByteStream::STREAM_MODE_WRITE, output);
if (AP4_FAILED(result)) {
fprintf(stderr, "ERROR: cannot open output file (%s)\n", output_filename);
return 1;
}
// get the movie
AP4_File* input_file = new AP4_File(*input);
AP4_Movie* input_movie = input_file->GetMovie();
if (input_movie == NULL) {
fprintf(stderr, "ERROR: no movie in file\n");
return 1;
}
AP4_Movie* output_movie = new AP4_Movie(input_movie->GetTimeScale());
AP4_File* output_file = new AP4_File(output_movie);
output_file->SetFileType(input_file->GetFileType()->GetMajorBrand(),
input_file->GetFileType()->GetMinorVersion(),
&input_file->GetFileType()->GetCompatibleBrands()[0],
input_file->GetFileType()->GetCompatibleBrands().ItemCount());
// copy all tracks
AP4_List<AP4_Track>& tracks = input_movie->GetTracks();
AP4_List<AP4_Track>::Item* track_item = tracks.FirstItem();
while (track_item) {
AP4_Track* track = track_item->GetData();
CopyTrack(input_movie, track, output_movie);
track_item = track_item->GetNext();
}
// write the file to the output
AP4_FileWriter::Write(*output_file, *output);
// cleanup
delete input_file;
delete output_file;
input->Release();
output->Release();
return 0;
}
|
