static GstVaapiDecoderStatus
decode_ebdu(GstVaapiDecoderVC1 *decoder, GstVC1BDU *ebdu)
{
GstVaapiDecoderStatus status;
GstVC1BDU rbdu;
if (!decode_rbdu(decoder, &rbdu, ebdu))
return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
switch (ebdu->type) {
case GST_VC1_SEQUENCE:
status = decode_sequence(decoder, &rbdu, ebdu);
break;
case GST_VC1_ENTRYPOINT:
status = decode_entry_point(decoder, &rbdu, ebdu);
break;
case GST_VC1_FRAME:
status = decode_frame(decoder, &rbdu, ebdu);
break;
case GST_VC1_SLICE:
GST_DEBUG("decode slice");
status = GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
break;
case GST_VC1_END_OF_SEQ:
status = decode_sequence_end(decoder);
break;
default:
GST_DEBUG("unsupported BDU type %d", ebdu->type);
status = GST_VAAPI_DECODER_STATUS_ERROR_BITSTREAM_PARSER;
break;
}
return status;
}
char *unbase32(cad_memory_t memory, const char *b32, size_t *len) {
size_t sz = strlen(b32) * 5 / 8 + 8;
size_t l = 0;
char *raw = memory.malloc(sz + 1);
memset(raw, 0, sz + 1);
for (size_t i = 0, j = 0; ; i += 8, j += 5) {
int n = decode_sequence(&b32[i], &raw[j]);
l += n;
if (n < 5) {
break;
}
}
assert(l <= sz);
if (len != NULL) {
*len = l;
}
return raw;
}
/*
* Decode SEEK request
*/
static int nfs4_xdr_dec_seek(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nfs42_seek_res *res)
{
struct compound_hdr hdr;
int status;
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
status = decode_seek(xdr, res);
out:
return status;
}
int main(int argc, char **argv)
{
int r, g, b;
// parse arguments
if (!parse_arguments(argc, argv, &r, &g, &b))
return -1;
// Set up gpi pointer for direct register access
setup_io();
// calibrate our timers
calibrate(1000000);
// Set GPIO pin 4 to output
INP_GPIO(4); // must use INP_GPIO before we can use OUT_GPIO
OUT_GPIO(4);
decode_sequence(r, g, b);
send_sequence();
return 0;
} // main
/* Given the enclosing tag t, decode from asn1/len the contents of the ASN.1
* type specified by a, placing the result into val (caller-allocated). */
static asn1_error_code
decode_atype(const taginfo *t, const unsigned char *asn1,
size_t len, const struct atype_info *a, void *val)
{
asn1_error_code ret;
switch (a->type) {
case atype_fn: {
const struct fn_info *fn = a->tinfo;
assert(fn->dec != NULL);
return fn->dec(t, asn1, len, val);
}
case atype_sequence:
return decode_sequence(asn1, len, a->tinfo, val);
case atype_ptr: {
const struct ptr_info *ptrinfo = a->tinfo;
void *ptr = LOADPTR(val, ptrinfo);
assert(ptrinfo->basetype != NULL);
if (ptr != NULL) {
/* Container was already allocated by a previous sequence field. */
return decode_atype(t, asn1, len, ptrinfo->basetype, ptr);
} else {
ret = decode_atype_to_ptr(t, asn1, len, ptrinfo->basetype, &ptr);
if (ret)
return ret;
STOREPTR(ptr, ptrinfo, val);
break;
}
}
case atype_offset: {
const struct offset_info *off = a->tinfo;
assert(off->basetype != NULL);
return decode_atype(t, asn1, len, off->basetype,
(char *)val + off->dataoff);
}
case atype_optional: {
const struct optional_info *opt = a->tinfo;
return decode_atype(t, asn1, len, opt->basetype, val);
}
case atype_counted: {
const struct counted_info *counted = a->tinfo;
void *dataptr = (char *)val + counted->dataoff;
size_t count;
assert(counted->basetype != NULL);
ret = decode_cntype(t, asn1, len, counted->basetype, dataptr, &count);
if (ret)
return ret;
return store_count(count, counted, val);
}
case atype_tagged_thing: {
const struct tagged_info *tag = a->tinfo;
taginfo inner_tag;
const taginfo *tp = t;
const unsigned char *rem;
size_t rlen;
if (!tag->implicit) {
ret = get_tag(asn1, len, &inner_tag, &asn1, &len, &rem, &rlen);
if (ret)
return ret;
/* Note: we don't check rlen (it should be 0). */
tp = &inner_tag;
if (!check_atype_tag(tag->basetype, tp))
return ASN1_BAD_ID;
}
return decode_atype(tp, asn1, len, tag->basetype, val);
}
case atype_bool: {
intmax_t intval;
ret = k5_asn1_decode_bool(asn1, len, &intval);
if (ret)
return ret;
return store_int(intval, a->size, val);
}
case atype_int: {
intmax_t intval;
ret = k5_asn1_decode_int(asn1, len, &intval);
if (ret)
return ret;
return store_int(intval, a->size, val);
}
case atype_uint: {
uintmax_t intval;
ret = k5_asn1_decode_uint(asn1, len, &intval);
if (ret)
return ret;
return store_uint(intval, a->size, val);
}
case atype_int_immediate: {
const struct immediate_info *imm = a->tinfo;
intmax_t intval;
ret = k5_asn1_decode_int(asn1, len, &intval);
if (ret)
return ret;
if (intval != imm->val && imm->err != 0)
return imm->err;
break;
}
default:
/* Null-terminated sequence types are handled in decode_atype_to_ptr,
* since they create variable-sized objects. */
assert(a->type != atype_nullterm_sequence_of);
assert(a->type != atype_nonempty_nullterm_sequence_of);
assert(a->type > atype_min);
assert(a->type < atype_max);
abort();
}
return 0;
}
/*
* Encode ALLOCATE request
*/
static void nfs4_xdr_enc_allocate(struct rpc_rqst *req,
struct xdr_stream *xdr,
struct nfs42_falloc_args *args)
{
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->falloc_fh, &hdr);
encode_allocate(xdr, args, &hdr);
encode_getfattr(xdr, args->falloc_bitmask, &hdr);
encode_nops(&hdr);
}
/*
* Encode DEALLOCATE request
*/
static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req,
struct xdr_stream *xdr,
struct nfs42_falloc_args *args)
{
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->falloc_fh, &hdr);
encode_deallocate(xdr, args, &hdr);
encode_getfattr(xdr, args->falloc_bitmask, &hdr);
encode_nops(&hdr);
}
/*
* Encode SEEK request
*/
static void nfs4_xdr_enc_seek(struct rpc_rqst *req,
struct xdr_stream *xdr,
struct nfs42_seek_args *args)
{
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->sa_fh, &hdr);
encode_seek(xdr, args, &hdr);
encode_nops(&hdr);
}
/*
* Encode LAYOUTSTATS request
*/
static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req,
struct xdr_stream *xdr,
struct nfs42_layoutstat_args *args)
{
int i;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fh, &hdr);
WARN_ON(args->num_dev > PNFS_LAYOUTSTATS_MAXDEV);
for (i = 0; i < args->num_dev; i++)
encode_layoutstats(xdr, args, &args->devinfo[i], &hdr);
encode_nops(&hdr);
}
static int decode_allocate(struct xdr_stream *xdr, struct nfs42_falloc_res *res)
{
return decode_op_hdr(xdr, OP_ALLOCATE);
}
static int decode_deallocate(struct xdr_stream *xdr, struct nfs42_falloc_res *res)
{
return decode_op_hdr(xdr, OP_DEALLOCATE);
}
static int decode_seek(struct xdr_stream *xdr, struct nfs42_seek_res *res)
{
int status;
__be32 *p;
status = decode_op_hdr(xdr, OP_SEEK);
if (status)
return status;
p = xdr_inline_decode(xdr, 4 + 8);
if (unlikely(!p))
goto out_overflow;
res->sr_eof = be32_to_cpup(p++);
p = xdr_decode_hyper(p, &res->sr_offset);
return 0;
out_overflow:
print_overflow_msg(__func__, xdr);
return -EIO;
}
static int decode_layoutstats(struct xdr_stream *xdr)
{
return decode_op_hdr(xdr, OP_LAYOUTSTATS);
}
/*
* Decode ALLOCATE request
*/
static int nfs4_xdr_dec_allocate(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nfs42_falloc_res *res)
{
struct compound_hdr hdr;
int status;
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
status = decode_allocate(xdr, res);
if (status)
goto out;
decode_getfattr(xdr, res->falloc_fattr, res->falloc_server);
out:
return status;
}
/*
* Decode DEALLOCATE request
*/
static int nfs4_xdr_dec_deallocate(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nfs42_falloc_res *res)
{
struct compound_hdr hdr;
int status;
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
status = decode_deallocate(xdr, res);
if (status)
goto out;
decode_getfattr(xdr, res->falloc_fattr, res->falloc_server);
out:
return status;
}
/*
* Decode SEEK request
*/
static int nfs4_xdr_dec_seek(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nfs42_seek_res *res)
{
struct compound_hdr hdr;
int status;
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
status = decode_seek(xdr, res);
out:
return status;
}
/*
* Decode LAYOUTSTATS request
*/
static int nfs4_xdr_dec_layoutstats(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nfs42_layoutstat_res *res)
{
struct compound_hdr hdr;
int status, i;
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
WARN_ON(res->num_dev > PNFS_LAYOUTSTATS_MAXDEV);
for (i = 0; i < res->num_dev; i++) {
status = decode_layoutstats(xdr);
if (status)
goto out;
}
out:
res->rpc_status = status;
return status;
}
/*
* Encode ALLOCATE request
*/
static void nfs4_xdr_enc_allocate(struct rpc_rqst *req,
struct xdr_stream *xdr,
struct nfs42_falloc_args *args)
{
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->falloc_fh, &hdr);
encode_allocate(xdr, args, &hdr);
encode_getfattr(xdr, args->falloc_bitmask, &hdr);
encode_nops(&hdr);
}
/*
* Encode COPY request
*/
static void nfs4_xdr_enc_copy(struct rpc_rqst *req,
struct xdr_stream *xdr,
struct nfs42_copy_args *args)
{
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->src_fh, &hdr);
encode_savefh(xdr, &hdr);
encode_putfh(xdr, args->dst_fh, &hdr);
encode_copy(xdr, args, &hdr);
encode_nops(&hdr);
}
/*
* Encode DEALLOCATE request
*/
static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req,
struct xdr_stream *xdr,
struct nfs42_falloc_args *args)
{
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->falloc_fh, &hdr);
encode_deallocate(xdr, args, &hdr);
encode_getfattr(xdr, args->falloc_bitmask, &hdr);
encode_nops(&hdr);
}
/*
* Encode SEEK request
*/
static void nfs4_xdr_enc_seek(struct rpc_rqst *req,
struct xdr_stream *xdr,
struct nfs42_seek_args *args)
{
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->sa_fh, &hdr);
encode_seek(xdr, args, &hdr);
encode_nops(&hdr);
}
/*
* Encode LAYOUTSTATS request
*/
static void nfs4_xdr_enc_layoutstats(struct rpc_rqst *req,
struct xdr_stream *xdr,
struct nfs42_layoutstat_args *args)
{
int i;
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fh, &hdr);
WARN_ON(args->num_dev > PNFS_LAYOUTSTATS_MAXDEV);
for (i = 0; i < args->num_dev; i++)
encode_layoutstats(xdr, args, &args->devinfo[i], &hdr);
encode_nops(&hdr);
}
/*
* Encode CLONE request
*/
static void nfs4_xdr_enc_clone(struct rpc_rqst *req,
struct xdr_stream *xdr,
struct nfs42_clone_args *args)
{
struct compound_hdr hdr = {
.minorversion = nfs4_xdr_minorversion(&args->seq_args),
};
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->src_fh, &hdr);
encode_savefh(xdr, &hdr);
encode_putfh(xdr, args->dst_fh, &hdr);
encode_clone(xdr, args, &hdr);
encode_getfattr(xdr, args->dst_bitmask, &hdr);
encode_nops(&hdr);
}
static int decode_allocate(struct xdr_stream *xdr, struct nfs42_falloc_res *res)
{
return decode_op_hdr(xdr, OP_ALLOCATE);
}
static int decode_write_response(struct xdr_stream *xdr,
struct nfs42_write_res *res)
{
__be32 *p;
p = xdr_inline_decode(xdr, 4 + 8 + 4);
if (unlikely(!p))
goto out_overflow;
/*
* We never use asynchronous mode, so warn if a server returns
* a stateid.
*/
if (unlikely(*p != 0)) {
pr_err_once("%s: server has set unrequested "
"asynchronous mode\n", __func__);
return -EREMOTEIO;
}
p++;
p = xdr_decode_hyper(p, &res->count);
res->verifier.committed = be32_to_cpup(p);
return decode_verifier(xdr, &res->verifier.verifier);
out_overflow:
print_overflow_msg(__func__, xdr);
return -EIO;
}
static int decode_copy_requirements(struct xdr_stream *xdr,
struct nfs42_copy_res *res) {
__be32 *p;
p = xdr_inline_decode(xdr, 4 + 4);
if (unlikely(!p))
goto out_overflow;
res->consecutive = be32_to_cpup(p++);
res->synchronous = be32_to_cpup(p++);
return 0;
out_overflow:
print_overflow_msg(__func__, xdr);
return -EIO;
}
static int decode_copy(struct xdr_stream *xdr, struct nfs42_copy_res *res)
{
int status;
status = decode_op_hdr(xdr, OP_COPY);
if (status == NFS4ERR_OFFLOAD_NO_REQS) {
status = decode_copy_requirements(xdr, res);
if (status)
return status;
return NFS4ERR_OFFLOAD_NO_REQS;
} else if (status)
return status;
status = decode_write_response(xdr, &res->write_res);
if (status)
return status;
return decode_copy_requirements(xdr, res);
}
static int decode_deallocate(struct xdr_stream *xdr, struct nfs42_falloc_res *res)
{
return decode_op_hdr(xdr, OP_DEALLOCATE);
}
static int decode_seek(struct xdr_stream *xdr, struct nfs42_seek_res *res)
{
int status;
__be32 *p;
status = decode_op_hdr(xdr, OP_SEEK);
if (status)
return status;
p = xdr_inline_decode(xdr, 4 + 8);
if (unlikely(!p))
goto out_overflow;
res->sr_eof = be32_to_cpup(p++);
p = xdr_decode_hyper(p, &res->sr_offset);
return 0;
out_overflow:
print_overflow_msg(__func__, xdr);
return -EIO;
}
static int decode_layoutstats(struct xdr_stream *xdr)
{
return decode_op_hdr(xdr, OP_LAYOUTSTATS);
}
static int decode_clone(struct xdr_stream *xdr)
{
return decode_op_hdr(xdr, OP_CLONE);
}
/*
* Decode ALLOCATE request
*/
static int nfs4_xdr_dec_allocate(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nfs42_falloc_res *res)
{
struct compound_hdr hdr;
int status;
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
status = decode_allocate(xdr, res);
if (status)
goto out;
decode_getfattr(xdr, res->falloc_fattr, res->falloc_server);
out:
return status;
}
/*
* Decode COPY response
*/
static int nfs4_xdr_dec_copy(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nfs42_copy_res *res)
{
struct compound_hdr hdr;
int status;
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
status = decode_savefh(xdr);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
status = decode_copy(xdr, res);
out:
return status;
}
/*
* Decode DEALLOCATE request
*/
static int nfs4_xdr_dec_deallocate(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nfs42_falloc_res *res)
{
struct compound_hdr hdr;
int status;
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
status = decode_deallocate(xdr, res);
if (status)
goto out;
decode_getfattr(xdr, res->falloc_fattr, res->falloc_server);
out:
return status;
}
/*
* Decode SEEK request
*/
static int nfs4_xdr_dec_seek(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nfs42_seek_res *res)
{
struct compound_hdr hdr;
int status;
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
status = decode_seek(xdr, res);
out:
return status;
}
/*
* Decode LAYOUTSTATS request
*/
static int nfs4_xdr_dec_layoutstats(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nfs42_layoutstat_res *res)
{
struct compound_hdr hdr;
int status, i;
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
WARN_ON(res->num_dev > PNFS_LAYOUTSTATS_MAXDEV);
for (i = 0; i < res->num_dev; i++) {
status = decode_layoutstats(xdr);
if (status)
goto out;
}
out:
res->rpc_status = status;
return status;
}
/*
* Decode CLONE request
*/
static int nfs4_xdr_dec_clone(struct rpc_rqst *rqstp,
struct xdr_stream *xdr,
struct nfs42_clone_res *res)
{
struct compound_hdr hdr;
int status;
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
status = decode_sequence(xdr, &res->seq_res, rqstp);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
status = decode_savefh(xdr);
if (status)
goto out;
status = decode_putfh(xdr);
if (status)
goto out;
status = decode_clone(xdr);
if (status)
goto out;
status = decode_getfattr(xdr, res->dst_fattr, res->server);
out:
res->rpc_status = status;
return status;
}