v0.2

.gitignore

@@ -127,3 +127,8 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+.idea/
+/build
+/dist
+*.spec
+test*

README.md

@@ -1,2 +1,21 @@
 # videoSplitter
-视频切分工具
+
+借助`ffmpeg`和`ffprobe`，把视频分为两半。
+
+## 使用说明(exe)
+
+1. 在[Releases](https://github.com/zhimengsub/videoSplitter/releases)中下载最新版本可执行文件
+
+2. 把`videoSplitter.exe`与`ffmpeg.exe`、`ffprobe.exe`放入同一目录下（或将`ffmpeg.exe`、`ffprobe.exe`所在目录添加入PATH）
+
+3. 把待处理视频拖放到`videoSplitter.exe`上即可，或使用命令行执行`videoSplitter.exe <视频文件路径>`
+
+## 使用说明(py)
+
+1. 安装[Python](https://www.python.org/downloads/)（注意3.9及以上版本不再支持win7）
+
+1. 下载本仓库代码到本地
+
+2. 把`videoSplitter.py`与`ffmpeg.exe`、`ffprobe.exe`放入同一目录下（或将`ffmpeg.exe`、`ffprobe.exe`所在目录添加入PATH）
+
+3. 把待处理视频拖放到`videoSplitter.py`上即可，或使用命令行执行`python videoSplitter.py <视频文件路径>`

videoSplitter.py

@@ -0,0 +1,98 @@
+import argparse
+import os
+import sys
+import subprocess
+import traceback
+
+VER = 'v0.2'
+desc = '把视频分割为两半  by 谢耳朵 ' + VER
+
+BASE = os.path.dirname(__file__ if not hasattr(sys, 'frozen') else sys.executable)
+os.chdir(BASE)
+ffprobe = 'ffprobe'
+ffmpeg = 'ffmpeg'
+
+def initparser():
+    parser = argparse.ArgumentParser(description=desc)
+    parser.add_argument('input', help='待分割视频')
+    parser.add_argument('-q', '--quit', action='store_true', help='结束后不暂停程序直接退出，方便命令行调用。不加该参数程序结束时会暂停。')
+    return parser
+
+def mkOutfilenames(infile: str):
+    infile = os.path.abspath(infile)
+    path, suf = os.path.splitext(infile)
+    dirname, name = os.path.split(path)
+    out1 = os.path.join(dirname, name+'_1'+suf)
+    out2 = os.path.join(dirname, name+'_2'+suf)
+    return out1, out2
+
+def getLength(infile: str) -> float:
+    '''return secs in float'''
+    # def t2s(t):
+    #     h, m, s = t.strip().split(":")
+    #     return int(h) * 3600 + int(m) * 60 + int(s)
+    out = subprocess.check_output([ffprobe, '-v', 'error', '-select_streams', 'v:0', '-show_entries', 'stream=duration', '-of', 'default=noprint_wrappers=1:nokey=1', infile]).decode('utf8')
+    #! 就算文件不存在返回码也是0，但输出为空
+    if out:
+        return float(out.strip())
+    return -1
+
+    # res = re.search(r'Duration: ([\d:]+)', out)
+    # if not res or not res[1]:
+    #     raise Exception('\n错误：获取视频时长失败，正则匹配错误！')
+    # duration = res[1]  # 00:25:25
+    # secs = t2s(duration)
+    # return secs
+
+def dosplit(first, mid, infile, outfile):
+    if first:
+        res = subprocess.run(["ffmpeg", '-t', str(mid), '-i', infile, '-c', 'copy', '-y', outfile], capture_output=True)
+    else:
+        res = subprocess.run(["ffmpeg", '-ss', str(mid), '-i', infile, '-c', 'copy', '-y', outfile], capture_output=True)
+    #! 就算正常运行 输出也在stderr里
+    if res.returncode != 0:
+        print(res.stderr.decode('utf8'))
+        print('错误：切割失败，请检查报错信息！')
+        return False
+    return True
+
+def splitVideo(infile: str):
+    try:
+        secs = getLength(infile)
+        assert secs >= 0
+        print('视频时长', secs, '秒')
+    except (AssertionError, Exception):
+        raise Exception('\n错误：获取视频时长失败！')
+
+    mid = secs//2
+    outfile1, outfile2 = mkOutfilenames(infile)
+
+    print('\n切分前半部分...')
+    #print(cmd)
+    res = dosplit(True, mid, infile, outfile1)  # first half
+    if not res: return '', ''
+
+    print('\n切分后半部分...')
+    res = dosplit(False, mid, infile, outfile2)  # second half
+    # subprocess.check_output([*cmd.split(' ')])
+    if not res: return '', ''
+
+    return outfile1, outfile2
+
+def main():
+    parser = initparser()
+    args = parser.parse_args()
+    try:
+        out1, out2 = splitVideo(args.input)
+        if out1 and out2:
+            print('\n成功！已输出至', out1, out2, sep='\n')
+    except Exception as err:
+        print('\n发生未预料错误！\n')
+        traceback.print_exc()
+    finally:
+        if not args.quit:
+            print()
+            os.system('pause')
+
+if __name__ == '__main__':
+    main()