<p>You can just use the protocol</p>

<pre><code>ffmpeg -i "concat:in1.ts|in2.ts|in3.ts" -c:v libx264 -r 30000/1001 -vf scale=640:480 -aspect 4:3 -preset slow -crf 22 output.mp4
</code></pre>

CC BY-SA 3.0
2017-01-08T04:56:47.407Z
2017-01-08T04:56:47.407Z
Gyan
<p>I have several similarly-encoded <code>.ts</code> video files that I would like to concatenate and encode into a single <code>.mp4</code> file.</p>

<p>The <code>.ts</code> files look like</p>

<pre><code>Input #0, mpegts, from 'input1.ts':
  Duration: 00:01:24.14, start: 0.066778, bitrate: 15941 kb/s
  Program 1 
    Stream #0:0[0x44]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
    Stream #0:1[0x45]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 251 kb/s
</code></pre>

<p>The output should be 640x480, 29.97fps video. (The <code>.ts</code> files contain digitized old <a href="https://en.wikipedia.org/wiki/8_mm_video_format#Hi8" rel="nofollow noreferrer">Hi8</a> camcorder video, digitized at a much-too-generous bitrate &amp; resolution for the Hi8 video format.)</p>

<p>I can encode a single <code>.ts</code> file like this:</p>

<pre><code>$ ffmpeg -i input1.ts -c:v libx264 -vf scale=640:480 -aspect 4:3 -preset slow -crf 22 -r 29.97 output.mp4
</code></pre>

<p><strong>What is the correct way to concatenate several <code>.ts</code> files into a single <code>.mp4</code> without creating a huge intermediate <code>.ts</code> file?</strong></p>

<p><a href="https://ffmpeg.org/faq.html#Concatenating-using-the-concat-filter" rel="nofollow noreferrer">This ffmpeg documentation</a> presents three concatenation methods: filter, demuxer, and protocol. I think I want the "filter" flavor. However, <a href="https://trac.ffmpeg.org/wiki/Concatenate#filter" rel="nofollow noreferrer">their example</a> of it is confusing.</p>

<ffmpeg>
ffmpeg: Concatenate then encode
ConvexMartian
# ffmpeg: Concatenate then encode

(Asked by: username_0 on 2017-01-08)

I have several similarly-encoded .ts video files that I would like to concatenate and encode into a single .mp4 file.
The .ts files look like
Input #0, mpegts, from 'input1.ts':
  Duration: 00:01:24.14, start: 0.066778, bitrate: 15941 kb/s
  Program 1 
    Stream #0:0[0x44]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
    Stream #0:1[0x45]: Audio: aac ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 251 kb/s

The output should be 640x480, 29.97fps video. (The .ts files contain digitized old Hi8 camcorder video, digitized at a much-too-generous bitrate & resolution for the Hi8 video format.)
I can encode a single .ts file like this:
$ ffmpeg -i input1.ts -c:v libx264 -vf scale=640:480 -aspect 4:3 -preset slow -crf 22 -r 29.97 output.mp4

What is the correct way to concatenate several .ts files into a single .mp4 without creating a huge intermediate .ts file?
This ffmpeg documentation presents three concatenation methods: filter, demuxer, and protocol. I think I want the "filter" flavor. However, their example of it is confusing.

**Tags:** ffmpeg


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## 1 answers

### Answer by username_1 on 2017-01-08. Score: 1 | Accepted answer

You can just use the protocol
ffmpeg -i "concat:in1.ts|in2.ts|in3.ts" -c:v libx264 -r 30000/1001 -vf scale=640:480 -aspect 4:3 -preset slow -crf 22 output.mp4


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