[Libav-user] Video Playback fast

[Kevin J. Brooks]

This is were I am setting up the codec context and format:

m_videoCodecCTX->codec_id = AV_CODEC_ID_WMV2;

     m_videoCodecCTX->bit_rate  = 400000;

     m_videoCodecCTX->width  = 640;

     m_videoCodecCTX->height  = 480;

     m_video_st.st->time_base.num  = 1;

     m_video_st.st->time_base.den  = 25;

     m_videoCodecCTX->time_base  =m_video_st.st->time_base;

     m_videoCodecCTX->gop_size  = 12;

     m_videoCodecCTX->pix_fmt  = AV_PIX_FMT_YUV420P;


m_video_st.st is a AVStream pointer.  m_videoCodecCTX is a 
m_videoCodecCTX pointer.

Sincerely,
Kevin J. Brooks
Senior Software Engineer
R2C Support Services
200 West Side Square Suite 604
Huntsville, AL 35801
Office: 256-684-8383 ext. 104


On 7/2/2015 9:59 AM, Talgorn François-Xavier wrote:
> Hi,
>
> Frames/second shouldn't be an issue in itself. It might be because of time_base parameter.
> To help you better, could you provide the code used ?
>
> Le 2 juil. 2015 à 16:41, Kevin J. Brooks <kbrooks at r2c-ss.com> a écrit :
>
>> Hi all,
>>
>> I am successfully saving video in a wmv format, capturing from a video capture card.  However, the play back in windows media is just a bit fast.  I am attempting to save at 25 frames per second, but the properties on the wmv file states it is 30 fps.  What should I be looking at to get this set up right?
>>
>> Thanks,
>> Kevin
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