Thanks for the reply, it's solved. I'll learn more from libav, thank you, again.
2010/2/8 avcoder <[email protected]> > missed "void sws_freeContext(SwsContext *c)" > > On Mon, Feb 8, 2010 at 8:18 PM, Xiaofei Tian <[email protected] > >wrote: > > > Hello all, > > I've encountered with a problem. I made a small change to the code from > > Dranger's tutorial02. (Raplace img_convert with sws_scale) When the > > following loop is being executed, the amount of used memory is almost > > linearly increased. After the playback is finished, the memory would be > > released to the original level. However, I could not find any dynamic > > allocation inside the loop. Why would that happened? > > Sorry for my poor English skill, but that problem is really confusing me. > > Thanks a lot in advance. > > Mickey > > > > while(av_read_frame(pFormatCtx, &packet)>=0) > > { > > if(packet.stream_index==videoStream) > > { > > fprintf(fp,"pts:%d\n",packet.pts); > > avcodec_decode_video(pCodecCtx, pFrame, &frameFinished,packet.data, > > packet.size); > > fprintf(fp,"%d\n",pFrame->pts); > > > > if(frameFinished) { > > > > SDL_LockYUVOverlay(bmp); > > > > AVPicture pict; > > pict.data[0] = bmp->pixels[0]; > > pict.data[1] = bmp->pixels[2]; > > pict.data[2] = bmp->pixels[1]; > > > > pict.linesize[0] = bmp->pitches[0]; > > pict.linesize[1] = bmp->pitches[2]; > > pict.linesize[2] = bmp->pitches[1]; > > > > img_convert_ctx = > > sws_getContext(pCodecCtx->width,pCodecCtx->height,pCodecCtx->pix_fmt, > > > > pCodecCtx->width,pCodecCtx->height,PIX_FMT_YUV420P,SWS_BICUBIC, NULL, > NULL, > > NULL); > > > > > > > sws_scale(img_convert_ctx,pFrame->data,pFrame->linesize,0,pCodecCtx->height,pict.data,pict.linesize); > > > > SDL_UnlockYUVOverlay(bmp); > > > > rect.x = 0; > > rect.y = 0; > > rect.w = pCodecCtx->width; > > rect.h = pCodecCtx->height; > > SDL_DisplayYUVOverlay(bmp,&rect); > > > > } > > } > > av_free_packet(&packet); > > } > > _______________________________________________ > > libav-user mailing list > > [email protected] > > https://lists.mplayerhq.hu/mailman/listinfo/libav-user > > > > > > -- > > ----------------------------------------------------------------------------------------- > My key fingerprint: d1:03:f5:32:26:ff:d7:3c:e4:42:e3:51:ec:92:78:b2 > _______________________________________________ > libav-user mailing list > [email protected] > https://lists.mplayerhq.hu/mailman/listinfo/libav-user > _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
