[Libav-user] Queuing of AVFrame

[volich at ukr.net]

Thank you for reply.

frame.c:

int av_frame_ref(AVFrame *dst, const AVFrame *src)
{
    ...

    /* duplicate the frame data if it's not refcounted */
    if (!src->buf[0]) {
        ret = av_frame_get_buffer(dst, 32);
        if (ret < 0)
            return ret;

        ret = av_frame_copy(dst, src);
        if (ret < 0)
            av_frame_unref(dst);

        return ret;
    }

    ...
}

After avcodec_decode_video2 my frame is not refcounted, so call of av_frame_ref gives me copy of frame.
I just want to my frame is refcounted. How to make this?
 
 --- Исходное сообщение ---
 От кого: "wm4" <nfxjfg at googlemail.com>
 Дата: 24 июля 2014, 22:21:16
  


> On Thu, 24 Jul 2014 09:23:46 +0300
> volich at ukr.net wrote:
> 
> > Sorry for formating, it was first message.
> > 
> > Hi
> > 
> > I want to realise AVFrames handling with queue.
> > My code is
> > 
> > int decode(AVCodecContext *codec_ctx, AVPacket *packet)
> > {
> > AVFrame *frame = av_frame_alloc();
> > if (!frame)
> > return -1;
> > 
> > int got_frame;
> > int ret = avcodec_decode_video2(codec_ctx, frame, &got_frame, packet);
> > if (ret >= 0 && got_frame) {
> > /* Allocate buffer references */
> > for (int i = 0; i < 3; i++) {
> > uint8_t *data = frame->data[i];
> > int size = frame->linesize[i] * frame->height;
> > frame->buf[i] = av_buffer_create(data, size, av_buffer_default_free, NULL, 0);
> > }
> > 
> > enqueue(frame);
> > return 0;
> > }
> > 
> > av_frame_free(