| /* |
| * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| |
| /*!\file |
| * \brief Provides the high level interface to wrap decoder algorithms. |
| * |
| */ |
| #include <stdarg.h> |
| #include <stdlib.h> |
| #include "vpx/vpx_integer.h" |
| #include "vpx/internal/vpx_codec_internal.h" |
| #include "vpx_version.h" |
| |
| #define SAVE_STATUS(ctx,var) (ctx?(ctx->err = var):var) |
| |
| int vpx_codec_version(void) { |
| return VERSION_PACKED; |
| } |
| |
| |
| const char *vpx_codec_version_str(void) { |
| return VERSION_STRING_NOSP; |
| } |
| |
| |
| const char *vpx_codec_version_extra_str(void) { |
| return VERSION_EXTRA; |
| } |
| |
| |
| const char *vpx_codec_iface_name(vpx_codec_iface_t *iface) { |
| return iface ? iface->name : "<invalid interface>"; |
| } |
| |
| const char *vpx_codec_err_to_string(vpx_codec_err_t err) { |
| switch (err) { |
| case VPX_CODEC_OK: |
| return "Success"; |
| case VPX_CODEC_ERROR: |
| return "Unspecified internal error"; |
| case VPX_CODEC_MEM_ERROR: |
| return "Memory allocation error"; |
| case VPX_CODEC_ABI_MISMATCH: |
| return "ABI version mismatch"; |
| case VPX_CODEC_INCAPABLE: |
| return "Codec does not implement requested capability"; |
| case VPX_CODEC_UNSUP_BITSTREAM: |
| return "Bitstream not supported by this decoder"; |
| case VPX_CODEC_UNSUP_FEATURE: |
| return "Bitstream required feature not supported by this decoder"; |
| case VPX_CODEC_CORRUPT_FRAME: |
| return "Corrupt frame detected"; |
| case VPX_CODEC_INVALID_PARAM: |
| return "Invalid parameter"; |
| case VPX_CODEC_LIST_END: |
| return "End of iterated list"; |
| } |
| |
| return "Unrecognized error code"; |
| } |
| |
| const char *vpx_codec_error(vpx_codec_ctx_t *ctx) { |
| return (ctx) ? vpx_codec_err_to_string(ctx->err) |
| : vpx_codec_err_to_string(VPX_CODEC_INVALID_PARAM); |
| } |
| |
| const char *vpx_codec_error_detail(vpx_codec_ctx_t *ctx) { |
| if (ctx && ctx->err) |
| return ctx->priv ? ctx->priv->err_detail : ctx->err_detail; |
| |
| return NULL; |
| } |
| |
| |
| vpx_codec_err_t vpx_codec_destroy(vpx_codec_ctx_t *ctx) { |
| vpx_codec_err_t res; |
| |
| if (!ctx) |
| res = VPX_CODEC_INVALID_PARAM; |
| else if (!ctx->iface || !ctx->priv) |
| res = VPX_CODEC_ERROR; |
| else { |
| ctx->iface->destroy((vpx_codec_alg_priv_t *)ctx->priv); |
| |
| ctx->iface = NULL; |
| ctx->name = NULL; |
| ctx->priv = NULL; |
| res = VPX_CODEC_OK; |
| } |
| |
| return SAVE_STATUS(ctx, res); |
| } |
| |
| |
| vpx_codec_caps_t vpx_codec_get_caps(vpx_codec_iface_t *iface) { |
| return (iface) ? iface->caps : 0; |
| } |
| |
| |
| vpx_codec_err_t vpx_codec_control_(vpx_codec_ctx_t *ctx, |
| int ctrl_id, |
| ...) { |
| vpx_codec_err_t res; |
| |
| if (!ctx || !ctrl_id) |
| res = VPX_CODEC_INVALID_PARAM; |
| else if (!ctx->iface || !ctx->priv || !ctx->iface->ctrl_maps) |
| res = VPX_CODEC_ERROR; |
| else { |
| vpx_codec_ctrl_fn_map_t *entry; |
| |
| res = VPX_CODEC_ERROR; |
| |
| for (entry = ctx->iface->ctrl_maps; entry && entry->fn; entry++) { |
| if (!entry->ctrl_id || entry->ctrl_id == ctrl_id) { |
| va_list ap; |
| |
| va_start(ap, ctrl_id); |
| res = entry->fn((vpx_codec_alg_priv_t *)ctx->priv, ap); |
| va_end(ap); |
| break; |
| } |
| } |
| } |
| |
| return SAVE_STATUS(ctx, res); |
| } |
| |
| void vpx_internal_error(struct vpx_internal_error_info *info, |
| vpx_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; |
| va_start(ap, fmt); |
| vsnprintf(info->detail, sz - 1, fmt, ap); |
| va_end(ap); |
| info->detail[sz - 1] = '\0'; |
| } |
| |
| if (info->setjmp) |
| longjmp(info->jmp, info->error_code); |
| } |