בס"ד
I would like to compile to following program:
With the flages: -lavcodec -lavutil -lavfilter -lavformat -lswscale -lz
#include "libavcodec/avcodec.h"
#include "libavformat/avformat.h"
#include "libswscale/swscale.h"
#include <stdio.h>
// The flush packet is a non-NULL packet with size 0 and data NULL
int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket
*pkt)
{
int ret;
*got_frame = 0;
if (pkt) {
ret = avcodec_send_packet(avctx, pkt);
// In particular, we don't expect AVERROR(EAGAIN), because we read
all
// decoded frames with avcodec_receive_frame() until done.
if (ret < 0)
return ret == AVERROR_EOF ? 0 : ret;
}
ret = avcodec_receive_frame(avctx, frame);
if (ret < 0 && ret != AVERROR(EAGAIN) && ret != AVERROR_EOF)
return ret;
if (ret >= 0)
*got_frame = 1;
return 0;
}
int main(int argc, char *argv[]) {
return 0;
But I receive:
undefined reference to `avcodec_send_packet'
undefined reference to `avcodec_receive_frame'
ffmpeg version is:
ffmpeg version 3.2.4 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
configuration:
libavutil 55. 34.101 / 55. 34.101
libavcodec 57. 64.101 / 57. 64.101
libavformat 57. 56.101 / 57. 56.101
libavdevice 57. 1.100 / 57. 1.100
libavfilter 6. 65.100 / 6. 65.100
libswscale 4. 2.100 / 4. 2.100
libswresample 2. 3.100 / 2. 3.100
Does some one know, Whats the problem?
--
בברכה, יוסף אלון
050-4916740
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