libavcodec/paf.c:419: error: Uninitialized Value
  The value read from cb[_] was never initialized.

libavcodec/paf.c:419:13: 
417.         // always 2 channels
418.         for (i = 0; i < PAF_SOUND_SAMPLES * 2; i++)
419.             *output_samples++ = cb[*src++];
                 ^
420.     }
421.     *got_frame = 1;

static int paf_audio_decode(AVCodecContext *avctx, void *data,
                            int *got_frame, AVPacket *pkt)
{
    AVFrame *frame = data;
    int16_t *output_samples;
    const uint8_t *src = pkt->data;
    int frames, ret, i, j;
    int16_t cb[256];
    frames = pkt->size / PAF_SOUND_FRAME_SIZE;
    if (frames < 1)
        return AVERROR_INVALIDDATA;
    frame->nb_samples = PAF_SOUND_SAMPLES * frames;
    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)
        return ret;
    output_samples = (int16_t *)frame->data[0];
    for (j = 0; j < frames; j++) {
        for (i = 0; i < 256; i++)
            cb[i] = sign_extend(AV_RL16(src + i * 2), 16);
        src += 256 * 2;
        for (i = 0; i < PAF_SOUND_SAMPLES * 2; i++)
            *output_samples++ = cb[*src++];
    }
    *got_frame = 1;
    return pkt->size;
}
['static int paf_audio_decode(AVCodecContext *avctx, void *data,\n                            int *got_frame, AVPacket *pkt)\n{\n    AVFrame *frame = data;\n    int16_t *output_samples;\n    const uint8_t *src = pkt->data;\n    int frames, ret, i, j;\n    int16_t cb[256];\n    frames = pkt->size / PAF_SOUND_FRAME_SIZE;\n    if (frames < 1)\n        return AVERROR_INVALIDDATA;\n    frame->nb_samples = PAF_SOUND_SAMPLES * frames;\n    if ((ret = ff_get_buffer(avctx, frame, 0)) < 0)\n        return ret;\n    output_samples = (int16_t *)frame->data[0];\n    for (j = 0; j < frames; j++) {\n        for (i = 0; i < 256; i++)\n            cb[i] = sign_extend(AV_RL16(src + i * 2), 16);\n        src += 256 * 2;\n        for (i = 0; i < PAF_SOUND_SAMPLES * 2; i++)\n            *output_samples++ = cb[*src++];\n    }\n    *got_frame = 1;\n    return pkt->size;\n}']