hjc2000 / video Goto Github PK

		while (1)
		{
			FFmpeg::AVPacket packet = iformat_context.read_frame();
			::AVPacket pkt = *packet();
			FFmpeg::AVStream input_stream = iformat_context.get_stream(pkt.stream_index);
			// 如果映射表中的目标索引号是负数，表示此流不被复制到输出格式中
			if (stream_map[packet()->stream_index] >= 0)
			{
				// 将此包的流索引号改为目标流索引号，这样这个包就会被写入输出格式的中的目标索引号
				// 的流中
				pkt.stream_index = stream_map[pkt.stream_index];
				FFmpeg::AVStream output_stream = oformat_context.get_stream(pkt.stream_index);
				pkt.pts = av_rescale_q_rnd(pkt.pts, input_stream()->time_base, output_stream()->time_base, ::AVRounding(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
				pkt.dts = av_rescale_q_rnd(pkt.dts, input_stream()->time_base, output_stream()->time_base, ::AVRounding(AV_ROUND_NEAR_INF | AV_ROUND_PASS_MINMAX));
				pkt.duration = av_rescale_q(pkt.duration, input_stream()->time_base, output_stream()->time_base);
				pkt.pos = -1;
				oformat_context.interleaved_write_frame(&pkt);
			}
		}

void interleaved_write_frame(::AVPacket* packet)
{
	int ret = ::av_interleaved_write_frame(_pWrapedObj, packet);
	if (ret < 0)
		throw ret;
}