private void EncodeZip(string fileName, string savePath)
{
string tempPath = savePath + "\\temp\\";
//FileInfo efinfo = new FileInfo(fileName);
ShowMessage("正在预编码");
string unzipPath = tempPath + "\\unzip\\" + Path.GetFileNameWithoutExtension(fileName) + "\\";
unzipPath = unzipPath.Replace("\\\\", "\\");
using (FileStream file = new FileStream(fileName, FileMode.Open, FileAccess.Read))
{
SharpUnZipFile zip = new SharpUnZipFile(file);
zip.UnZipFiles(unzipPath);
}
string jsonPath = unzipPath + "animation.json";
string json = File.ReadAllText(jsonPath);
FramePackInfos info = new FramePackInfos();
info.PixivID = Path.GetFileNameWithoutExtension(fileName);
List <FrameItem> lstFrame = JsonConvert.DeserializeObject <List <FrameItem> >(json);
info.Frames = lstFrame;
string[] files = Directory.GetFiles(unzipPath);
if (files.Length > 0)
{
FileInfo finfo = new FileInfo(files[0]);
using (Image bmp = Bitmap.FromFile(files[0]))
{
info.PicSize = bmp.Size;
}
}
string perPack = tempPath + "\\pack\\" + Path.GetFileNameWithoutExtension(fileName) + "\\";
perPack = perPack.Replace("\\\\", "\\");
if (!Directory.Exists(perPack))
{
Directory.CreateDirectory(perPack);
}
SavePerPack(perPack, unzipPath, info);
ShowMessage("正在转码");
try
{
RunEncode(perPack, savePath, info, 8);
}
finally
{
Directory.Delete(unzipPath, true);
Directory.Delete(perPack, true);
}
}
/// <summary>
/// 保存要打包的图片
/// </summary>
/// <param name="perPackPath"></param>
/// <param name="unzip"></param>
/// <param name="info"></param>
private void SavePerPack(string perPackPath, string unzip, FramePackInfos info)
{
string[] files = Directory.GetFiles(unzip);
Dictionary <string, string> dic = new Dictionary <string, string>(StringComparer.CurrentCultureIgnoreCase);
string exName = null;
string json = perPackPath + "\\animation.json";
foreach (string str in files)
{
if (str.EndsWith("animation.json", StringComparison.CurrentCultureIgnoreCase))
{
continue;
}
FileInfo finfo = new FileInfo(str);
if (!finfo.Exists)
{
continue;
}
dic[finfo.Name] = str.Trim();
if (string.IsNullOrWhiteSpace(exName))
{
exName = finfo.Extension;
}
}
string curFile = null;
int curIndex = 0;
int perFrm = info.MinDelayPer;
foreach (FrameItem item in info.Frames)
{
string fileKey = item.File;
if (!dic.TryGetValue(fileKey, out curFile))
{
continue;
}
int count = (int)Math.Ceiling((decimal)item.Delay / (decimal)perFrm);
if (count <= 0)
{
count = 1;
}
for (int i = 0; i < count; i++)
{
string newFileName = perPackPath + curIndex.ToString("D8") + exName;
File.Copy(curFile, newFileName, true);
curIndex++;
}
}
}
/// <summary>
/// 运行编码
/// </summary>
private void RunEncode(string tmppath, string savePath, FramePackInfos info, int fileLen)
{
string outType = _config.CmbOutput;
if (string.IsNullOrWhiteSpace(outType))
{
outType = "mp4";
}
int loop = (int)nuploop.Value;
string outVideo = savePath + "\\" + info.PixivID + "." + outType;
string mpegPath = CommonMethods.GetBaseRoot() + "ffmpg\\";
if (IntPtr.Size == 8)
{
mpegPath = mpegPath + "ffmpegx64.exe";
}
else
{
mpegPath = mpegPath + "ffmpeg.exe";
}
string prm = null;
string bit = _config.CmbBit;
string outfps = _config.CmbOutFPS;
int fps = 1000 / info.MinDelayPer;
if (string.Equals(outType, "mp4"))
{
//prm = "-threads 2 -f image2 -i \"" + tmppath + "%" + fileLen.ToString("D2") + "d.jpg\" -r " + fps + " -y -c:v libx264 -b 1M -c:a libfaac-ab -ar 44100 -pix_fmt yuv420p -f mp4 \"" + outVideo + "\"";
StringBuilder sb = new StringBuilder();
sb.Append("-threads 4 -f image2 -r " + fps);
if (loop > 0)
{
sb.Append(" -stream_loop ");
sb.Append(loop.ToString());
sb.Append(" ");
}
sb.Append(" -i \"");
sb.Append(tmppath.Replace("\\\\", "\\"));
sb.Append("%");
sb.Append(fileLen.ToString("D2"));
sb.Append("d.jpg\" -r ");
sb.Append(outfps);
sb.Append(" -y -c:v libx264");
if (!string.IsNullOrWhiteSpace(bit))
{
sb.Append(" -b ");
sb.Append(bit);
}
if (!info.PicSize.IsEmpty)
{
sb.Append(" -s ");
int value = info.PicSize.Width;
if (value % 2 > 0)
{
value = value + 1;
}
sb.Append(value);
sb.Append("x");
value = info.PicSize.Height;
if (value % 2 > 0)
{
value = value + 1;
}
sb.Append(value);
}
sb.Append(" -c:a libfaac-ab -ar 44100 -pix_fmt yuv420p -f mp4 \"");
sb.Append(outVideo.Replace("\\\\", "\\"));
sb.Append("\"");
prm = sb.ToString();
}
else
{
StringBuilder sb = new StringBuilder();
sb.Append("-threads 2 -f image2 -r " + fps);
sb.Append(" -i \"");
sb.Append(tmppath.Replace("\\\\", "\\"));
sb.Append("%");
sb.Append(fileLen.ToString("D2"));
sb.Append("d.jpg\" -loop 0 -r " + outfps);
if (!string.IsNullOrWhiteSpace(bit))
{
sb.Append(" -b ");
sb.Append(bit);
}
sb.Append(" -y \"");
sb.Append(outVideo);
sb.Append("\"");
prm = sb.ToString();
//prm = "-threads 2 -f image2 -i \""+ tmppath + "%" + fileLen.ToString("D2") + "d.jpg\" -b 2048k -loop 0 -y \"" + outVideo+"\"";
}
Process.Start(mpegPath, prm).WaitForExit();
}
