Ticket #1053: av_internal_buf_crash.c

#include <stddef.h>
#include <assert.h>
#include <libavcodec/avcodec.h>

int main(int argc, char* argv[])
{
        AVCodec* codec;
        AVCodecContext* context;
        AVFrame frame;
        int res;

        avcodec_register_all();
        codec = avcodec_find_decoder(CODEC_ID_SPEEX);
        assert(codec);
        context = avcodec_alloc_context3(codec);
        assert(context);

        context->time_base.num = 1;
        context->time_base.den = 1000;
        context->sample_rate = 16000;
        context->channels = 1;
        context->sample_fmt = AV_SAMPLE_FMT_S16;
        context->frame_size = 320;
        context->flags = CODEC_FLAG_GLOBAL_HEADER;

        res = avcodec_open2(context, codec, NULL);
        assert(res == 0);
        
        avcodec_get_frame_defaults(&frame);
        frame.nb_samples = 320;

        res = avcodec_default_get_buffer(context, &frame);
        assert(res == 0);

        /* crashes here */
        avcodec_default_release_buffer(context, &frame);

        avcodec_close(context);
        av_free(context);

        return 0;
}