Convert to .mp4 from '.mkv', '.avi', '.asf', '.dav', '.mov' using ffmpeg, python subprocess

cv-util-ffmpeg-convert-to-mp4-from-mkv-avi-asv-dav-mov.ipynb

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      "source": "Code taken from: https://askubuntu.com/questions/396883/how-to-simply-convert-video-files-i-e-mkv-to-mp4"
    },
    {
      "metadata": {
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      "id": "c2fb2992",
      "cell_type": "code",
      "source": "import os\nimport pandas as pd\nimport subprocess",
      "execution_count": 16,
      "outputs": []
    },
    {
      "metadata": {
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      },
      "id": "44791fa5",
      "cell_type": "code",
      "source": "# def gather_video_stats(base_path):\n    \n#     stats = []\n#     allowed_file_extensions = ['mp4', 'avi', 'mkv', 'asf', 'mov', 'dav']\n    \n#     for root, dirs, files in os.walk(base_path):\n#         for file in files:\n#             abs_file_path = os.path.join(root, file)\n#             extn = abs_file_path.split(os.path.sep)[-1].split(\".\")[-1] \n#             if extn in allowed_file_extensions:\n#                 stats.append(get_video_stats(abs_file_path)+[extn])\n    \n#     stats_df = pd.DataFrame(stats, columns=['camera_name', 'date', 'video_name', 'width', 'height', 'fps', 'duration', 'extension'])\n#     return stats_df",
      "execution_count": 17,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": false
      },
      "id": "8a522eb9",
      "cell_type": "code",
      "source": "base_path = '/home/acer/sample_videos'",
      "execution_count": 18,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": false
      },
      "id": "632bee88",
      "cell_type": "code",
      "source": "dest_path = '/home/acer/test_out/'",
      "execution_count": 19,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": false
      },
      "id": "4bffdf91",
      "cell_type": "code",
      "source": "allowed_extns = ['.mkv', '.avi', '.asf', '.dav', '.mov']",
      "execution_count": 20,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": false
      },
      "id": "a543f6ab",
      "cell_type": "code",
      "source": "for i in os.listdir(base_path):\n    abs_file_path = os.path.join(base_path, i)\n    # filename, extn = os.path.splitext(abs_file_path)\n    filename, extn = os.path.splitext(os.path.basename(abs_file_path))\n    \n    if extn in allowed_extns:\n        \n        abs_output_file_path = os.path.join(dest_path, filename+'.mp4')\n        cmd = [\"ffmpeg\", \"-i\", abs_file_path, \"-codec\", \"copy\", abs_output_file_path]\n        print(subprocess.check_output(cmd).decode(\"utf-8\").strip())\n    ",
      "execution_count": 21,
      "outputs": [
        {
          "name": "stdout",
          "output_type": "stream",
          "text": "\n\n\n\n"
        }
      ]
    },
    {
      "metadata": {
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      "id": "9fe5be0c",
      "cell_type": "code",
      "source": "os.path.split(abs_file_path)",
      "execution_count": 7,
      "outputs": [
        {
          "data": {
            "text/plain": "('/home/acer/sample_videos', '4.mkv')"
          },
          "execution_count": 7,
          "metadata": {},
          "output_type": "execute_result"
        }
      ]
    },
    {
      "metadata": {
        "trusted": false
      },
      "id": "11e8f406",
      "cell_type": "code",
      "source": "abs_file_path.split(os.path.sep)",
      "execution_count": 9,
      "outputs": [
        {
          "data": {
            "text/plain": "['', 'home', 'acer', 'sample_videos', '4.mkv']"
          },
          "execution_count": 9,
          "metadata": {},
          "output_type": "execute_result"
        }
      ]
    },
    {
      "metadata": {
        "trusted": false
      },
      "id": "4e6216ef",
      "cell_type": "code",
      "source": "os.path.splitext(abs_file_path)",
      "execution_count": 10,
      "outputs": [
        {
          "data": {
            "text/plain": "('/home/acer/sample_videos/4', '.mkv')"
          },
          "execution_count": 10,
          "metadata": {},
          "output_type": "execute_result"
        }
      ]
    },
    {
      "metadata": {
        "trusted": false
      },
      "id": "bc871af5",
      "cell_type": "code",
      "source": "cmd",
      "execution_count": 9,
      "outputs": [
        {
          "data": {
            "text/plain": "['ffmpeg',\n '-i',\n '/home/acer/sample_videos/NVR_ch1_main_20210216165000_20210216170000.dav',\n '-codec',\n 'copy',\n '/home/acer/sample_videos/NVR_ch1_main_20210216165000_20210216170000.mp4']"
          },
          "execution_count": 9,
          "metadata": {},
          "output_type": "execute_result"
        }
      ]
    },
    {
      "metadata": {
        "trusted": false
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      "id": "92071483",
      "cell_type": "code",
      "source": "abs_output_file_path",
      "execution_count": 10,
      "outputs": [
        {
          "data": {
            "text/plain": "'/home/acer/sample_videos/NVR_ch1_main_20210216165000_20210216170000.mp4'"
          },
          "execution_count": 10,
          "metadata": {},
          "output_type": "execute_result"
        }
      ]
    },
    {
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      "id": "5f86392e",
      "cell_type": "code",
      "source": "filename",
      "execution_count": 11,
      "outputs": [
        {
          "data": {
            "text/plain": "'/home/acer/sample_videos/NVR_ch1_main_20210216165000_20210216170000'"
          },
          "execution_count": 11,
          "metadata": {},
          "output_type": "execute_result"
        }
      ]
    },
    {
      "metadata": {
        "trusted": false
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      "id": "b97a2bf6",
      "cell_type": "code",
      "source": "os.path.split(abs_file_path)",
      "execution_count": 13,
      "outputs": [
        {
          "data": {
            "text/plain": "('/home/acer/sample_videos', 'NVR_ch1_main_20210216165000_20210216170000.dav')"
          },
          "execution_count": 13,
          "metadata": {},
          "output_type": "execute_result"
        }
      ]
    },
    {
      "metadata": {
        "trusted": false
      },
      "id": "9967e11b",
      "cell_type": "code",
      "source": "filename, extn = os.path.splitext(os.path.basename(abs_file_path))",
      "execution_count": 14,
      "outputs": []
    },
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      "id": "ccfdf13f",
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      "source": "filename",
      "execution_count": 15,
      "outputs": [
        {
          "data": {
            "text/plain": "'NVR_ch1_main_20210216165000_20210216170000'"
          },
          "execution_count": 15,
          "metadata": {},
          "output_type": "execute_result"
        }
      ]
    },
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      "cell_type": "code",
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      "execution_count": null,
      "outputs": []
    },
    {
      "metadata": {},
      "id": "120061c9",
      "cell_type": "markdown",
      "source": "# References\n1. the best \"If you only want to convert MKV to MP4 then you will save quality and a lot of time by just changing the containers.\": https://askubuntu.com/questions/396883/how-to-simply-convert-video-files-i-e-mkv-to-mp4\n\nUnread:\n1. https://stackoverflow.com/questions/64519818/converting-mkv-files-to-mp4-with-ffmpeg-python\n2. https://stackoverflow.com/questions/32714579/ffmpeg-converts-anything-to-mp4\n3. https://gist.github.com/elrond1999/3019676\n4. https://linuxhint.com/convert_videos_using_ffmpeg_ubuntu/\n5. Good tutorial: https://opensource.com/article/17/6/ffmpeg-convert-media-file-formats\n6. https://stackoverflow.com/questions/32827539/ffmpeg-conversion-dav-to-any-video-files"
    }
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