blob: 04876cdd7cb6f4009004ee25ce3b62c077d86d65 [file] [log] [blame]
* Copyright (c) 2012 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.
#include <cstring>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "./vpx_config.h"
#include "vpx/vpx_decoder.h"
namespace libvpx_test {
class CodecFactory;
class CompressedVideoSource;
// Provides an object to handle decoding output
class DxDataIterator {
explicit DxDataIterator(vpx_codec_ctx_t *decoder)
: decoder_(decoder), iter_(NULL) {}
const vpx_image_t *Next() { return vpx_codec_get_frame(decoder_, &iter_); }
vpx_codec_ctx_t *decoder_;
vpx_codec_iter_t iter_;
// Provides a simplified interface to manage one video decoding.
// Similar to Encoder class, the exact services should be added
// as more tests are added.
class Decoder {
explicit Decoder(vpx_codec_dec_cfg_t cfg)
: cfg_(cfg), flags_(0), init_done_(false) {
memset(&decoder_, 0, sizeof(decoder_));
Decoder(vpx_codec_dec_cfg_t cfg, const vpx_codec_flags_t flag)
: cfg_(cfg), flags_(flag), init_done_(false) {
memset(&decoder_, 0, sizeof(decoder_));
virtual ~Decoder() { vpx_codec_destroy(&decoder_); }
vpx_codec_err_t PeekStream(const uint8_t *cxdata, size_t size,
vpx_codec_stream_info_t *stream_info);
vpx_codec_err_t DecodeFrame(const uint8_t *cxdata, size_t size);
vpx_codec_err_t DecodeFrame(const uint8_t *cxdata, size_t size,
void *user_priv);
DxDataIterator GetDxData() { return DxDataIterator(&decoder_); }
void Control(int ctrl_id, int arg) { Control(ctrl_id, arg, VPX_CODEC_OK); }
void Control(int ctrl_id, const void *arg) {
const vpx_codec_err_t res = vpx_codec_control_(&decoder_, ctrl_id, arg);
ASSERT_EQ(VPX_CODEC_OK, res) << DecodeError();
void Control(int ctrl_id, int arg, vpx_codec_err_t expected_value) {
const vpx_codec_err_t res = vpx_codec_control_(&decoder_, ctrl_id, arg);
ASSERT_EQ(expected_value, res) << DecodeError();
const char *DecodeError() {
const char *detail = vpx_codec_error_detail(&decoder_);
return detail ? detail : vpx_codec_error(&decoder_);
// Passes the external frame buffer information to libvpx.
vpx_codec_err_t SetFrameBufferFunctions(
vpx_get_frame_buffer_cb_fn_t cb_get,
vpx_release_frame_buffer_cb_fn_t cb_release, void *user_priv) {
return vpx_codec_set_frame_buffer_functions(&decoder_, cb_get, cb_release,
const char *GetDecoderName() const {
return vpx_codec_iface_name(CodecInterface());
bool IsVP8() const;
vpx_codec_ctx_t *GetDecoder() { return &decoder_; }
virtual vpx_codec_iface_t *CodecInterface() const = 0;
void InitOnce() {
if (!init_done_) {
const vpx_codec_err_t res =
vpx_codec_dec_init(&decoder_, CodecInterface(), &cfg_, flags_);
ASSERT_EQ(VPX_CODEC_OK, res) << DecodeError();
init_done_ = true;
vpx_codec_ctx_t decoder_;
vpx_codec_dec_cfg_t cfg_;
vpx_codec_flags_t flags_;
bool init_done_;
// Common test functionality for all Decoder tests.
class DecoderTest {
// Main decoding loop
virtual void RunLoop(CompressedVideoSource *video);
virtual void RunLoop(CompressedVideoSource *video,
const vpx_codec_dec_cfg_t &dec_cfg);
virtual void set_cfg(const vpx_codec_dec_cfg_t &dec_cfg);
virtual void set_flags(const vpx_codec_flags_t flags);
// Hook to be called before decompressing every frame.
virtual void PreDecodeFrameHook(const CompressedVideoSource & /*video*/,
Decoder * /*decoder*/) {}
// Hook to be called to handle decode result. Return true to continue.
virtual bool HandleDecodeResult(const vpx_codec_err_t res_dec,
const CompressedVideoSource & /*video*/,
Decoder *decoder) {
EXPECT_EQ(VPX_CODEC_OK, res_dec) << decoder->DecodeError();
return VPX_CODEC_OK == res_dec;
// Hook to be called on every decompressed frame.
virtual void DecompressedFrameHook(const vpx_image_t & /*img*/,
const unsigned int /*frame_number*/) {}
// Hook to be called on peek result
virtual void HandlePeekResult(Decoder *const decoder,
CompressedVideoSource *video,
const vpx_codec_err_t res_peek);
explicit DecoderTest(const CodecFactory *codec)
: codec_(codec), cfg_(), flags_(0) {}
virtual ~DecoderTest() {}
const CodecFactory *codec_;
vpx_codec_dec_cfg_t cfg_;
vpx_codec_flags_t flags_;
} // namespace libvpx_test