blocks|key|543728|text|你可以试试ffprobe。获取JSON输出的正确命令应如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|543729|ffprobe+...+-print_format+json|code-block|syntax|javascript|543730|entityMap|0|LINK|mutability|MUTABLE|url|http://ffmpeg.org/ffprobe.html#SEC7^0|5|7|5|7|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@$9|V|A|W|1|X]]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|L|$M|$5|N|O|P|E|$Q|R]]]]

You could try <a href="http://ffmpeg.org/ffprobe.html#SEC7" rel="noreferrer"><code>ffprobe</code></a>. The correct command to get JSON output should look like the following:

<pre><code>ffprobe ... -print_format json
</code></pre>

blocks|key|760369|text|有点晚了，但也许仍然与某些人相关..|type|unstyled|depth|inlineStyleRanges|entityRanges|data|760370|ffprobe确实是一个很好的选择。但是请注意，您需要告诉ffprobe您希望它显示什么信息(使用-show_format、-show_packets和-show_streams选项)，否则它只会给出空白输出(就像您在评论中提到的那样)。|offset|length|style|CODE|760371|例如，ffprobe+-v+quiet+-print_format+json+-show_format+-show_streams+somefile.asf将生成类似以下内容的内容：|760372|{
++"streams":+[{
++++"index":+0,
++++"codec_name":+"wmv3",
++++"codec_long_name":+"Windows+Media+Video+9",
++++"codec_type":+"video",
++++"codec_time_base":+"1/1000",
++++"codec_tag_string":+"WMV3",
++++"codec_tag":+"0x33564d57",
++++"width":+320,
++++"height":+240,
++++"has_b_frames":+0,
++++"pix_fmt":+"yuv420p",
++++"level":+-99,
++++"r_frame_rate":+"30000/1001",
++++"avg_frame_rate":+"0/0",
++++"time_base":+"1/1000",
++++"start_time":+"0.000",
++++"duration":+"300.066",
++++"tags":+{
++++++++"language":+"eng"
++++}
++}],
++"format":+{
++++"filename":+"somefile.asf",
++++"nb_streams":+1,
++++"format_name":+"asf",
++++"format_long_name":+"ASF+format",
++++"start_time":+"0.000",
++++"duration":+"300.066",
++++"tags":+{
++++++++"WMFSDKVersion":+"10.00.00.3646",
++++++++"WMFSDKNeeded":+"0.0.0.0000",
++++++++"IsVBR":+"0"
++++}
++}
}|code-block|syntax|javascript|760373|entityMap^0|0|0|7|T|7|1D|C|1Q|D|24|D|0|3|23|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@$D|S|E|T|F|G]|$D|U|E|V|F|G]|$D|W|E|X|F|G]|$D|Y|E|Z|F|G]|$D|10|E|11|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|12|8|@$D|13|E|14|F|G]]|9|@]|A|$]]|$1|J|3|K|5|L|7|15|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|P|$]]

A bit late, but perhaps still relevant to someone..

<code>ffprobe</code> is indeed an excellent way to go. Note, though, that you need to tell <code>ffprobe</code> what information you want it to display (with the <code>-show_format</code>, <code>-show_packets</code> and <code>-show_streams</code> options) or it'll just give you blank output (like you mention in one of your comments).

For example, <code>ffprobe -v quiet -print_format json -show_format -show_streams somefile.asf</code> would yield something like the following:

<pre><code>{
 "streams": [{
 "index": 0,
 "codec_name": "wmv3",
 "codec_long_name": "Windows Media Video 9",
 "codec_type": "video",
 "codec_time_base": "1/1000",
 "codec_tag_string": "WMV3",
 "codec_tag": "0x33564d57",
 "width": 320,
 "height": 240,
 "has_b_frames": 0,
 "pix_fmt": "yuv420p",
 "level": -99,
 "r_frame_rate": "30000/1001",
 "avg_frame_rate": "0/0",
 "time_base": "1/1000",
 "start_time": "0.000",
 "duration": "300.066",
 "tags": {
 "language": "eng"
 }
 }],
 "format": {
 "filename": "somefile.asf",
 "nb_streams": 1,
 "format_name": "asf",
 "format_long_name": "ASF format",
 "start_time": "0.000",
 "duration": "300.066",
 "tags": {
 "WMFSDKVersion": "10.00.00.3646",
 "WMFSDKNeeded": "0.0.0.0000",
 "IsVBR": "0"
 }
 }
}
</code></pre>

blocks|key|760413|text|现在可以使用-progress+-打印由key=value格式化的友好信息。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|760414|ffmpeg++-i+video.mp4+.......-s+1920x1080+-progress+-+-y+out.mp4

speed=5.75x
frame=697
fps=167.7
stream_0_0_q=39.0
bitrate=2337.0kbits/s
total_size=6979778
out_time_ms=23893333
out_time=00:00:23.893333
dup_frames=0
drop_frames=0|code-block|syntax|javascript|760415|entityMap^0|6|B|K|9|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

Now is possible to use <code>-progress -</code> to print friendly info formatted by <code>key=value</code>.

<pre><code>ffmpeg -i video.mp4 .......-s 1920x1080 -progress - -y out.mp4

speed=5.75x
frame=697
fps=167.7
stream_0_0_q=39.0
bitrate=2337.0kbits/s
total_size=6979778
out_time_ms=23893333
out_time=00:00:23.893333
dup_frames=0
drop_frames=0
</code></pre>

blocks|key|543930|text|ffprobe的另一种用法，它很容易解析：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|543931|ffprobe+-v+error+-select_streams+v:0+-show_entries+stream=width,height,r_frame_rate,bit_rate,codec_name,duration+-of+csv=p=0:s=x+video.mp4|code-block|syntax|javascript|543932|结果如下：|543933|h264x600x480x25/1x385.680000x542326|543934|-select_streams+v:0仅选择第一个视频流。如果删除该参数，则每个流对应一行。|543935|entityMap^0|0|7|0|0|0|0|Z|0|0|J|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|W|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|R|$]]

Another usage of <code>ffprobe</code> which is nicely parseable:
<pre><code>ffprobe -v error -select_streams v:0 -show_entries stream=width,height,r_frame_rate,bit_rate,codec_name,duration -of csv=p=0:s=x video.mp4
</code></pre>
results in:
<code>h264x600x480x25/1x385.680000x542326</code>
<code>-select_streams v:0</code> selects only the first video stream. If you remove that parameter you get one line for each stream.

Every time I try to get some information about my video files with ffmpeg, it pukes a lot of useless information mixed with good things.

I'm using <code>ffmpeg -i name_of_the_video.mpg</code>.

There are any possibilities to get that in a friendly way? I mean JSON would be great (and even ugly XML is fine).

By now, I made my application parse the data with regex but there are lots of nasty corners that appear on some specific video files. I fixed all that I encountered, but there may be more.

I wanted something like:

<pre><code>{
 "Stream 0": {
 "type": "Video",
 "codec": "h264",
 "resolution": "720x480"
 },
 "Stream 1": {
 "type": "Audio",
 "bitrate": "128 kbps",
 "channels": 2
 }
}
</code></pre>

Get ffmpeg information in friendly way

Windows

JSON

每次我试图用ffmpeg获取一些关于我的视频文件的信息时，它都会产生很多无用的信息，其中夹杂着一些好的东西。我使用的是ffmpeg -i name_of_the_video.mpg。有没有可能以友好的方式实现这一点？我的意思是JSON会很棒(即使是丑陋的XML也可以)。到目前为止，我让我的应用程序使用正则表达式解析数据...

问以友好的方式获取ffmpeg信息
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问以友好的方式获取ffmpeg信息EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问以友好的方式获取ffmpeg信息
EN