[FFmpeg-user] interlaced result when transcoding from h264

Mitja Pirih mitja at alternet.si
Thu Jan 9 23:32:05 CET 2014

On 09. 01. 2014 23:08, Henk D. Schoneveld wrote:
> On 09 Jan 2014, at 22:38, Mitja Pirih <mitja at alternet.si> wrote:
>> Hi,
>> I am transcoding a h264 DVB-T stream but I am not satisfied with the
>> results. The picture looks like "interlaced" on fast moving scenes.
>> Here I posted (sorry for long post) some ffprobe data of the original
>> (input) stream and output stream. What are my options to get a better
>> picture?
> AFAIK XBMC can deinterlace these streams.
> Another question, why do you reencode ? I think XBMC is able to play the original stream, or am I wrong ?

My goal is to downsize the stream as the streams will be pushed over a
wireless network. The original stream is between 2.5-5mbps, my target is
1-1.8mbps. I am not so familiar with XBMC, I will check with the options.

Thank you for pointing to crf flag, I will remove it from the config and
leave just the bitrate.

Another question, maybe connected to "interlacing". All transcoded
streams have a dashed line on the top (first line). Do you have an idea
why those lines appears after transcoding?

Thank you,

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