Merge pull request #850 from trav90/add-av1-support

Add initial support for AV1 video.

1 files changed, 114 insertions, 0 deletions

diff --git a/third_party/aom/test/decode_test_driver.cc b/third_party/aom/test/decode_test_driver.cc
new file mode 100644
index 000000000..70de0cff6
--- /dev/null
+++ b/third_party/aom/test/decode_test_driver.cc
@@ -0,0 +1,114 @@
+/*
+ * 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.
+ */
+
+#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
+
+#include "test/codec_factory.h"
+#include "test/decode_test_driver.h"
+#include "test/register_state_check.h"
+#include "test/video_source.h"
+
+namespace libaom_test {
+
+const char kAV1Name[] = "AOMedia Project AV1 Decoder";
+
+aom_codec_err_t Decoder::PeekStream(const uint8_t *cxdata, size_t size,
+                                    aom_codec_stream_info_t *stream_info) {
+  return aom_codec_peek_stream_info(CodecInterface(), cxdata, size,
+                                    stream_info);
+}
+
+aom_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size) {
+  return DecodeFrame(cxdata, size, NULL);
+}
+
+aom_codec_err_t Decoder::DecodeFrame(const uint8_t *cxdata, size_t size,
+                                     void *user_priv) {
+  aom_codec_err_t res_dec;
+  InitOnce();
+  API_REGISTER_STATE_CHECK(
+      res_dec = aom_codec_decode(&decoder_, cxdata, size, user_priv));
+  return res_dec;
+}
+
+bool Decoder::IsAV1() const {
+  const char *codec_name = GetDecoderName();
+  return strncmp(kAV1Name, codec_name, sizeof(kAV1Name) - 1) == 0;
+}
+
+void DecoderTest::HandlePeekResult(Decoder *const /*decoder*/,
+                                   CompressedVideoSource * /*video*/,
+                                   const aom_codec_err_t res_peek) {
+  /* The Av1 implementation of PeekStream returns an error only if the
+   * data passed to it isn't a valid Av1 chunk. */
+  ASSERT_EQ(AOM_CODEC_OK, res_peek)
+      << "Peek return failed: " << aom_codec_err_to_string(res_peek);
+}
+
+void DecoderTest::RunLoop(CompressedVideoSource *video,
+                          const aom_codec_dec_cfg_t &dec_cfg) {
+  Decoder *const decoder = codec_->CreateDecoder(dec_cfg, flags_);
+  ASSERT_TRUE(decoder != NULL);
+  bool end_of_file = false;
+  bool peeked_stream = false;
+
+  // Decode frames.
+  for (video->Begin(); !::testing::Test::HasFailure() && !end_of_file;
+       video->Next()) {
+    PreDecodeFrameHook(*video, decoder);
+
+    aom_codec_stream_info_t stream_info;
+    stream_info.is_annexb = 0;
+
+    if (video->cxdata() != NULL) {
+      if (!peeked_stream) {
+        // TODO(yaowu): PeekStream returns error for non-sequence_header_obu,
+        // therefore should only be tried once per sequence, this shall be fixed
+        // once PeekStream is updated to properly operate on other obus.
+        const aom_codec_err_t res_peek = decoder->PeekStream(
+            video->cxdata(), video->frame_size(), &stream_info);
+        HandlePeekResult(decoder, video, res_peek);
+        ASSERT_FALSE(::testing::Test::HasFailure());
+        peeked_stream = true;
+      }
+
+      aom_codec_err_t res_dec =
+          decoder->DecodeFrame(video->cxdata(), video->frame_size());
+      if (!HandleDecodeResult(res_dec, *video, decoder)) break;
+    } else {
+      // Signal end of the file to the decoder.
+      const aom_codec_err_t res_dec = decoder->DecodeFrame(NULL, 0);
+      ASSERT_EQ(AOM_CODEC_OK, res_dec) << decoder->DecodeError();
+      end_of_file = true;
+    }
+
+    DxDataIterator dec_iter = decoder->GetDxData();
+    const aom_image_t *img = NULL;
+
+    // Get decompressed data
+    while (!::testing::Test::HasFailure() && (img = dec_iter.Next()))
+      DecompressedFrameHook(*img, video->frame_number());
+  }
+  delete decoder;
+}
+
+void DecoderTest::RunLoop(CompressedVideoSource *video) {
+  aom_codec_dec_cfg_t dec_cfg = aom_codec_dec_cfg_t();
+  RunLoop(video, dec_cfg);
+}
+
+void DecoderTest::set_cfg(const aom_codec_dec_cfg_t &dec_cfg) {
+  memcpy(&cfg_, &dec_cfg, sizeof(cfg_));
+}
+
+void DecoderTest::set_flags(const aom_codec_flags_t flags) { flags_ = flags; }
+
+}  // namespace libaom_test