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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
/*!\file
* \brief Provides the high level interface to wrap decoder algorithms.
*
*/
#include <assert.h>
#include <stdarg.h>
#include <stdlib.h>
#include "config/aom_config.h"
#include "config/aom_version.h"
#include "aom/aom_integer.h"
#include "aom/internal/aom_codec_internal.h"
int aom_codec_version(void) { return VERSION_PACKED; }
const char *aom_codec_version_str(void) { return VERSION_STRING_NOSP; }
const char *aom_codec_version_extra_str(void) { return VERSION_EXTRA; }
const char *aom_codec_iface_name(aom_codec_iface_t *iface) {
return iface ? iface->name : "<invalid interface>";
}
const char *aom_codec_err_to_string(aom_codec_err_t err) {
switch (err) {
case AOM_CODEC_OK: return "Success";
case AOM_CODEC_ERROR: return "Unspecified internal error";
case AOM_CODEC_MEM_ERROR: return "Memory allocation error";
case AOM_CODEC_ABI_MISMATCH: return "ABI version mismatch";
case AOM_CODEC_INCAPABLE:
return "Codec does not implement requested capability";
case AOM_CODEC_UNSUP_BITSTREAM:
return "Bitstream not supported by this decoder";
case AOM_CODEC_UNSUP_FEATURE:
return "Bitstream required feature not supported by this decoder";
case AOM_CODEC_CORRUPT_FRAME: return "Corrupt frame detected";
case AOM_CODEC_INVALID_PARAM: return "Invalid parameter";
case AOM_CODEC_LIST_END: return "End of iterated list";
}
return "Unrecognized error code";
}
const char *aom_codec_error(const aom_codec_ctx_t *ctx) {
return (ctx) ? aom_codec_err_to_string(ctx->err)
: aom_codec_err_to_string(AOM_CODEC_INVALID_PARAM);
}
const char *aom_codec_error_detail(const aom_codec_ctx_t *ctx) {
if (ctx && ctx->err)
return ctx->priv ? ctx->priv->err_detail : ctx->err_detail;
return NULL;
}
aom_codec_err_t aom_codec_destroy(aom_codec_ctx_t *ctx) {
if (!ctx) {
return AOM_CODEC_INVALID_PARAM;
}
if (!ctx->iface || !ctx->priv) {
ctx->err = AOM_CODEC_ERROR;
return AOM_CODEC_ERROR;
}
ctx->iface->destroy((aom_codec_alg_priv_t *)ctx->priv);
ctx->iface = NULL;
ctx->name = NULL;
ctx->priv = NULL;
ctx->err = AOM_CODEC_OK;
return AOM_CODEC_OK;
}
aom_codec_caps_t aom_codec_get_caps(aom_codec_iface_t *iface) {
return iface ? iface->caps : 0;
}
aom_codec_err_t aom_codec_control(aom_codec_ctx_t *ctx, int ctrl_id, ...) {
if (!ctx) {
return AOM_CODEC_INVALID_PARAM;
}
// Control ID must be non-zero.
if (!ctrl_id) {
ctx->err = AOM_CODEC_INVALID_PARAM;
return AOM_CODEC_INVALID_PARAM;
}
if (!ctx->iface || !ctx->priv || !ctx->iface->ctrl_maps) {
ctx->err = AOM_CODEC_ERROR;
return AOM_CODEC_ERROR;
}
// "ctrl_maps" is an array of (control ID, function pointer) elements,
// with CTRL_MAP_END as a sentinel.
for (aom_codec_ctrl_fn_map_t *entry = ctx->iface->ctrl_maps;
!at_ctrl_map_end(entry); ++entry) {
if (entry->ctrl_id == ctrl_id) {
va_list ap;
va_start(ap, ctrl_id);
ctx->err = entry->fn((aom_codec_alg_priv_t *)ctx->priv, ap);
va_end(ap);
return ctx->err;
}
}
ctx->err = AOM_CODEC_ERROR;
ctx->priv->err_detail = "Invalid control ID";
return AOM_CODEC_ERROR;
}
aom_codec_err_t aom_codec_set_option(aom_codec_ctx_t *ctx, const char *name,
const char *value) {
if (!ctx) {
return AOM_CODEC_INVALID_PARAM;
}
if (!ctx->iface || !ctx->priv || !ctx->iface->set_option) {
ctx->err = AOM_CODEC_ERROR;
return AOM_CODEC_ERROR;
}
ctx->err =
ctx->iface->set_option((aom_codec_alg_priv_t *)ctx->priv, name, value);
return ctx->err;
}
LIBAOM_FORMAT_PRINTF(3, 0)
static void set_error(struct aom_internal_error_info *info,
aom_codec_err_t error, const char *fmt, va_list ap) {
info->error_code = error;
info->has_detail = 0;
if (fmt) {
size_t sz = sizeof(info->detail);
info->has_detail = 1;
vsnprintf(info->detail, sz - 1, fmt, ap);
info->detail[sz - 1] = '\0';
}
}
void aom_set_error(struct aom_internal_error_info *info, aom_codec_err_t error,
const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
set_error(info, error, fmt, ap);
va_end(ap);
assert(!info->setjmp);
}
void aom_internal_error(struct aom_internal_error_info *info,
aom_codec_err_t error, const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
set_error(info, error, fmt, ap);
va_end(ap);
if (info->setjmp) longjmp(info->jmp, info->error_code);
}
void aom_internal_error_copy(struct aom_internal_error_info *info,
const struct aom_internal_error_info *src) {
assert(info != src);
if (!src->has_detail) {
aom_internal_error(info, src->error_code, NULL);
} else {
aom_internal_error(info, src->error_code, "%s", src->detail);
}
}
void aom_merge_corrupted_flag(int *corrupted, int value) {
*corrupted |= value;
}
const char *aom_obu_type_to_string(OBU_TYPE type) {
switch (type) {
case OBU_SEQUENCE_HEADER: return "OBU_SEQUENCE_HEADER";
case OBU_TEMPORAL_DELIMITER: return "OBU_TEMPORAL_DELIMITER";
case OBU_FRAME_HEADER: return "OBU_FRAME_HEADER";
case OBU_REDUNDANT_FRAME_HEADER: return "OBU_REDUNDANT_FRAME_HEADER";
case OBU_FRAME: return "OBU_FRAME";
case OBU_TILE_GROUP: return "OBU_TILE_GROUP";
case OBU_METADATA: return "OBU_METADATA";
case OBU_TILE_LIST: return "OBU_TILE_LIST";
case OBU_PADDING: return "OBU_PADDING";
default: break;
}
return "<Invalid OBU Type>";
}
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