[Bug Report] [BuildInModule] [CFFEncoder]Generatormode push_output error when Encode video and audio stream

[x850044053wwt]

It works fine when encoding one stream separately, but there is a problem when encoding video and audio at the same time

[x850044053wwt]

std::string input_file = "./big_bunny_1min_30fps.mp4";
std::string output_file = "D:/output.mp4";
nlohmann::json graph_para = { {"dump_graph", 1} };
BMF_CPP_FILE_REMOVE(output_file);
auto graph = bmf::builder::Graph(bmf::builder::GeneratorMode,
bmf_sdk::JsonParam(graph_para));
nlohmann::json decode_para = { {"input_path", input_file} };
auto video = graph.Decode(bmf_sdk::JsonParam(decode_para));
nlohmann::json encode_para = { {"push_output", 1} };
bmf::builder::Stream stream =
graph.Encode(video["video"], video["audio"], bmf_sdk::JsonParam(encode_para));
stream.Start();
std::ofstream outFile(output_file, std::ios::out | std::ios::binary);
while (true) {
Packet pkt = graph.Generate(stream.GetName());
if (pkt.timestamp() == BMF_EOF) {
break;
}
if (pkt.is<BMFAVPacket>() == true) {
BMFAVPacket ppkt = pkt.get<BMFAVPacket>();
int offset = ppkt.get_offset();
int whence = ppkt.get_whence();
void* data = ppkt.data_ptr();
if (offset > 0) {
if (whence == 0) {
outFile.seekp(offset, std::ios_base::beg);
}
else if (whence == 1) {
outFile.seekp(offset, std::ios_base::cur);
}
else if (whence == 2) {
outFile.seekp(offset, std::ios_base::end);
}
}
std::cout << "tby : " << offset << " "
<< " " << whence << " " << ppkt.nbytes() << std::endl;
outFile.write((char*)data, ppkt.nbytes());
}
}
outFile.close();