How to set header metadata to encoded video?

Question

I'm encoding some images into an h264 video inside an mp4 container. I'm essentially using the ffmpeg example muxing.c. The thing is I'm trying to set some metadata in the mp4 container such as artist, title, etc...

I thought using the following would work but it didn't:

AVDictionary *opts = NULL;
av_dict_set(&opts, "title", "Super Lucky Dude", 0);
av_dict_set(&opts, "author", "Jacky Chan", 0);
av_dict_set(&opts, "album", "Chinese Movie", 0);
av_dict_set(&opts, "year", "05/10/2013", 0);
av_dict_set(&opts, "comment", "This video was created using example app.", 0);
av_dict_set(&opts, "genre", "Action", 0);

// Write the stream header, if any.
ret = avformat_write_header(oc, &opts);

After the whole video is created I don't see any metadata written to the video file. Any pointers how to actually do this properly?

How are you auditing for metadata? Hex editor? iTunes Properties dialog? — Multimedia Mike, Jun 11 '13 at 01:04
I'm using VLC and also Quicktime. I actually have resolved the issue please see my answer below. — Jona, Jun 11 '13 at 10:31

score 8 · Accepted Answer · answered Jun 11 '13 at 10:30

8

The solution was to actually use the metadata variable from AVFormatContext instead of creating my own AVDictionary and passing it to the avformat_write_header function.

answered Jun 11 '13 at 10:30

Jona

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sorry about using the old topic, but I'm having a similar issue when trying to set a video stream metadata. Would you have some pointers on how to achieve that? I already created a question on SO, here's the link http://stackoverflow.com/questions/29973423/setting-video-stream-metadata-using-ffmpeg – Edson Menegatti May 04 '15 at 17:11

How to set header metadata to encoded video?

1 Answers1

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