static int check_bits_for_superframe(GetBitContext *orig_gb,
                                     WMAVoiceContext *s)
{
    GetBitContext s_gb, *gb = &s_gb;
    int n, need_bits, bd_idx;
    const struct frame_type_desc *frame_desc;
    init_get_bits(gb, orig_gb->buffer, orig_gb->size_in_bits);
    skip_bits_long(gb, get_bits_count(orig_gb));
    assert(get_bits_left(gb) == get_bits_left(orig_gb));
    if (get_bits_left(gb) < 14)
        return 1;
    if (!get_bits1(gb))
        return AVERROR(ENOSYS);
    if (get_bits1(gb)) skip_bits(gb, 12);
    if (s->has_residual_lsps) {
        if (get_bits_left(gb) < s->sframe_lsp_bitsize)
            return 1;
        skip_bits_long(gb, s->sframe_lsp_bitsize);
    }
    for (n = 0; n < MAX_FRAMES; n++) {
        int aw_idx_is_ext = 0;
        if (!s->has_residual_lsps) {
           if (get_bits_left(gb) < s->frame_lsp_bitsize) return 1;
           skip_bits_long(gb, s->frame_lsp_bitsize);
        }
        bd_idx = s->vbm_tree[get_vlc2(gb, frame_type_vlc.table, 6, 3)];
        if (bd_idx < 0)
            return AVERROR_INVALIDDATA;
        frame_desc = &frame_descs[bd_idx];
        if (frame_desc->acb_type == ACB_TYPE_ASYMMETRIC) {
            if (get_bits_left(gb) < s->pitch_nbits)
                return 1;
            skip_bits_long(gb, s->pitch_nbits);
        }
        if (frame_desc->fcb_type == FCB_TYPE_SILENCE) {
            skip_bits(gb, 8);
        } else if (frame_desc->fcb_type == FCB_TYPE_AW_PULSES) {
            int tmp = get_bits(gb, 6);
            if (tmp >= 0x36) {
                skip_bits(gb, 2);
                aw_idx_is_ext = 1;
            }
        }
        if (frame_desc->acb_type == ACB_TYPE_HAMMING) {
            need_bits = s->block_pitch_nbits +
                (frame_desc->n_blocks - 1) * s->block_delta_pitch_nbits;
        } else if (frame_desc->fcb_type == FCB_TYPE_AW_PULSES) {
            need_bits = 2 * !aw_idx_is_ext;
        } else
            need_bits = 0;
        need_bits += frame_desc->frame_size;
        if (get_bits_left(gb) < need_bits)
            return 1;
        skip_bits_long(gb, need_bits);
    }
    return 0;
}
['static int check_bits_for_superframe(GetBitContext *orig_gb,\n                                     WMAVoiceContext *s)\n{\n    GetBitContext s_gb, *gb = &s_gb;\n    int n, need_bits, bd_idx;\n    const struct frame_type_desc *frame_desc;\n    init_get_bits(gb, orig_gb->buffer, orig_gb->size_in_bits);\n    skip_bits_long(gb, get_bits_count(orig_gb));\n    assert(get_bits_left(gb) == get_bits_left(orig_gb));\n    if (get_bits_left(gb) < 14)\n        return 1;\n    if (!get_bits1(gb))\n        return AVERROR(ENOSYS);\n    if (get_bits1(gb)) skip_bits(gb, 12);\n    if (s->has_residual_lsps) {\n        if (get_bits_left(gb) < s->sframe_lsp_bitsize)\n            return 1;\n        skip_bits_long(gb, s->sframe_lsp_bitsize);\n    }\n    for (n = 0; n < MAX_FRAMES; n++) {\n        int aw_idx_is_ext = 0;\n        if (!s->has_residual_lsps) {\n           if (get_bits_left(gb) < s->frame_lsp_bitsize) return 1;\n           skip_bits_long(gb, s->frame_lsp_bitsize);\n        }\n        bd_idx = s->vbm_tree[get_vlc2(gb, frame_type_vlc.table, 6, 3)];\n        if (bd_idx < 0)\n            return AVERROR_INVALIDDATA;\n        frame_desc = &frame_descs[bd_idx];\n        if (frame_desc->acb_type == ACB_TYPE_ASYMMETRIC) {\n            if (get_bits_left(gb) < s->pitch_nbits)\n                return 1;\n            skip_bits_long(gb, s->pitch_nbits);\n        }\n        if (frame_desc->fcb_type == FCB_TYPE_SILENCE) {\n            skip_bits(gb, 8);\n        } else if (frame_desc->fcb_type == FCB_TYPE_AW_PULSES) {\n            int tmp = get_bits(gb, 6);\n            if (tmp >= 0x36) {\n                skip_bits(gb, 2);\n                aw_idx_is_ext = 1;\n            }\n        }\n        if (frame_desc->acb_type == ACB_TYPE_HAMMING) {\n            need_bits = s->block_pitch_nbits +\n                (frame_desc->n_blocks - 1) * s->block_delta_pitch_nbits;\n        } else if (frame_desc->fcb_type == FCB_TYPE_AW_PULSES) {\n            need_bits = 2 * !aw_idx_is_ext;\n        } else\n            need_bits = 0;\n        need_bits += frame_desc->frame_size;\n        if (get_bits_left(gb) < need_bits)\n            return 1;\n        skip_bits_long(gb, need_bits);\n    }\n    return 0;\n}', 'static inline int init_get_bits(GetBitContext *s, const uint8_t *buffer,\n                                int bit_size)\n{\n    int buffer_size;\n    int ret = 0;\n    if (bit_size > INT_MAX - 7 || bit_size < 0 || !buffer) {\n        bit_size    = 0;\n        buffer      = NULL;\n        ret         = AVERROR_INVALIDDATA;\n    }\n    buffer_size = (bit_size + 7) >> 3;\n    s->buffer             = buffer;\n    s->size_in_bits       = bit_size;\n#if !UNCHECKED_BITSTREAM_READER\n    s->size_in_bits_plus8 = bit_size + 8;\n#endif\n    s->buffer_end         = buffer + buffer_size;\n    s->index              = 0;\n    return ret;\n}', 'static inline int get_bits_count(const GetBitContext *s)\n{\n    return s->index;\n}', 'static inline void skip_bits_long(GetBitContext *s, int n)\n{\n#if UNCHECKED_BITSTREAM_READER\n    s->index += n;\n#else\n    s->index += av_clip(n, -s->index, s->size_in_bits_plus8 - s->index);\n#endif\n}', 'static inline int get_bits_left(GetBitContext *gb)\n{\n    return gb->size_in_bits - get_bits_count(gb);\n}', 'static inline unsigned int get_bits1(GetBitContext *s)\n{\n    unsigned int index = s->index;\n    uint8_t result     = s->buffer[index >> 3];\n#ifdef BITSTREAM_READER_LE\n    result >>= index & 7;\n    result  &= 1;\n#else\n    result <<= index & 7;\n    result >>= 8 - 1;\n#endif\n#if !UNCHECKED_BITSTREAM_READER\n    if (s->index < s->size_in_bits_plus8)\n#endif\n        index++;\n    s->index = index;\n    return result;\n}']