#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libavformat/avformat.h>

AVOutputFormat *get_yuv4mpeg_format() {
    AVOutputFormat *format = NULL;
    while((format = av_oformat_next(format))) {
        if(strcmp(format->name, "yuv4mpegpipe") == 0) {
            return format;
        }
    }
    return NULL;
}

int main(int argc, char *argv[]) {
    av_register_all();
    char *filename = "test.y4m";

    AVFormatContext *fc = avformat_alloc_context();
    fc->oformat = get_yuv4mpeg_format();
    if(!fc->oformat) {
        fprintf(stderr, "Could not find yuv4mpeg\n");
        exit(1);
    }
    snprintf(fc->filename, sizeof(fc->filename), "%s", filename);

    AVCodecContext *c;
    AVStream *st;
    if (fc->oformat->video_codec != CODEC_ID_NONE) {
         st = avformat_new_stream(fc, 0);
         c = st->codec;
         c->codec_id = fc->oformat->video_codec;
         c->codec_type = AVMEDIA_TYPE_VIDEO;
         c->pix_fmt = PIX_FMT_YUV420P;
         c->width = 352;
         c->height = 288;
    }


     if (!(fc->oformat->flags & AVFMT_NOFILE)) {
         if (avio_open(&fc->pb, filename, URL_WRONLY) < 0) {
             fprintf(stderr, "Could not open '%s'\n", filename);
             exit(1);
         }
     }

    fc->oformat->write_header(fc);

    return 0;
}

#if 0
Backtrace:
#0  0x00007ffff7b9c185 in ?? () from /usr/lib/x86_64-linux-gnu/libavformat.so.53
#1  0x0000000000400ac6 in main (argc=1, argv=0x7fffffffe0e8) at test.c:48
#endif