Edwin van der Horst wrote:
[...]
> However, i would like to increase the quality of the JPEG images produces.
> The current video contains little color, and pretty large blocks.
>
> For encoding I use:
>
> encContext = avcodec_alloc_context();
> encContext->width = 320;
> encContext->height = 240;
> encContext->time_base = (AVRational){1,10};
> encContext->pix_fmt = PIX_FMT_YUVJ420P;
>
> Are there any more parameters that affect the output quality of the
> images, or is this a fixed setting?
Try increasing the bitrate (the bit_rate field in the AVCodecContext).
The default value is pretty low, and MJPEG requires high bitrates to
give reasonable quality.
Luca
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