string getCodec(MediaStream st, int streamI, ConvertMedia convertAll, string ext, string extra265Paras = "")
{
var cmd = " -codec:" + streamI + " ";
var convert = st.convert;
if (convertAll != null)
{
convert = convertAll;
}
if (convert.audio_code != "" && st.isAudio())
{
cmd += convert.audio_code;
if (convert.audio_bit_rate != "")
{
cmd += " -ab:" + streamI + " " + convert.audio_bit_rate + "k ";
}
else if (convert.audio_quality != "")
{
cmd += " -aq:" + streamI + " " + convert.audio_quality + " ";
}
else
{
cmd += " -aq:" + streamI + " 2 ";
}
if (convert.audio_channels != "")
{
cmd += " -ac:" + streamI + " " + convert.audio_channels + " ";
}
if (convert.audio_sample_rate != "")
{
cmd += " -ar:" + streamI + " " + convert.audio_sample_rate + " ";
}
}
else if (convert.video_code != "" && st.isVideo())
{
cmd += convert.video_code;
}
else
{
if (st.isSubtitle() && !st.isImgSubtitle() && st.hasMovText(ext))
{
cmd += " mov_text ";
}
else if (ext == "mkv" && st.isMovText())
{
cmd += " srt ";
}
else
{
cmd += " copy ";
}
}
if (st.isVideo())
{
if (convert.video_crfs > 0)
{
var crf = convert.video_crfs - 1;
if (convert.video_code.IndexOf("nvenc") > 0)
{
cmd += " -qp:" + streamI + " " + crf + " ";
}
else if (convert.video_code.IndexOf("qsv") > 0)
{
cmd += " -global_quality:" + streamI + " " + crf + " ";
}
else if (convert.video_code.IndexOf("vp9") >= 0)
{
cmd += " -crf:" + streamI + " " + crf + " -b:v:" + streamI + " 0 ";
}
else
{
cmd += " -crf:" + streamI + " " + crf + " ";
}
}
else if (convert.video_bit_rate != "")
{
var rate = int.Parse(convert.video_bit_rate);
cmd += " -b:v:" + streamI + " " + rate + "k ";
}
if (convert.video_max_bit_rate != "")
{
cmd += " -maxrate:v:" + streamI + " " + convert.video_max_bit_rate + "k ";
var buf_size = convert.video_buffer_size;
if (buf_size == "")
{
buf_size = convert.video_max_bit_rate + "";
}
cmd += " -bufsize " + buf_size + "k ";
}
if (convert.preset != "")
{
if (convert.video_code == "vp9")
{
cmd += " -deadline:" + streamI + " " + convert.preset + " ";
}
else
{
cmd += " -preset:" + streamI + " " + convert.preset + " ";
}
}
if (convert.video_display_size != "")
{
var size = convert.video_display_size;
if (convert.video_display_size.Contains("-1"))
{
var whs = convert.video_display_size.Replace(" ", "").Split(':');
if (whs.Length == 2)
{
int w = int.Parse(whs[0]);
int h = int.Parse(whs[1]);
if (whs[0] == "-1")
{
if (st.height != 0)
{
w = h * st.width / st.height;
}
}
else if (whs[1] == "-1")
{
if (st.width != 0)
{
h = w * st.height / st.width;
}
}
size = getScale(w, h);
}
}
cmd += " -s:" + streamI + " " + size + " ";
}
cmd += getFieldAttr(convert, streamI);
if (convert.video_code == "h264")
{
var paras = convert.x26x_params.GetType().GetProperties().JoinStr(":", it => FileConvertParameter.getFieldStr(it, convert.x26x_params));
if (paras != "")
{
cmd += " -x264-params:" + streamI + " \"" + paras + "\" ";
}
}
else if (convert.video_code == "hevc")
{
var vals = convert.x26x_params.GetType().GetProperties().Select(it => FileConvertParameter.getFieldStr(it, convert.x26x_params, true)).
Concat(convert.x265_params.GetType().GetProperties().Select(it => FileConvertParameter.getFieldStr(it, convert.x265_params, true)));
if (extra265Paras != "")
{
vals = new string[] { extra265Paras }.Concat(vals);
}
var paras = vals.JoinStr(":", it => it);
if (paras != "")
{
cmd += " -x265-params:" + streamI + " \"" + paras + "\" ";
}
}
}
if (convert.command_line != "" && convertAll == null)
{
cmd += " " + convert.command_line + " ";
}
return(cmd);
}
public string getCMD()
{
return(FileConvertParameter.reflectFilter(this));
}