Thank you for your help but It still doesn't work, It cannot pass the
sws_scale function.
buffer = (uint8_t *)av_malloc(sizeBuffer);
avpicture_fill((AVPicture*)&pFrameRGB,buffer,
PIX_FMT_RGB24,pCodecCtx->width,
pCodecCtx->height);
On 8/2/2010 8:14 AM, avcoder wrote:
On Mon, Aug 2, 2010 at 2:38 AM, Hoang Ong<[email protected]> wrote:
Hi Experts,
I'm try to extract frames from mp4 video. I got the frame that I want to do
the output, but I get stuck when I convert frame to PIX_FMT_RGB24 image
type. My code is :
//store formated frame
AVFrame *pFrameRGB;
pFrameRGB=avcodec_alloc_frame();
SwsContext* convert_ctx;
convert_ctx = sws_getContext( pCodecCtx->width,
pCodecCtx->height,
pCodecCtx->pix_fmt,
pCodecCtx->width,
pCodecCtx->height,
PIX_FMT_RGB24,
SWS_BILINEAR, NULL, NULL,
NULL);
if (convert_ctx == NULL)
{
cout<< "Cannot init scale context!\n";
return;
}
uint8_t *buffer;
int sizeBuffer =
avpicture_get_size(PIX_FMT_RGB24,pCodecCtx->width,
pCodecCtx->height);
buffer = new uint8_t[sizeBuffer];
memory alignment is required!
try use av_malloc()/av_free()
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