Remove duplicate code in test/webm_video_source.h

Remove duplicate WebM parsing code in test/webm_video_source.h and linking it
against webmdec.c which does the exact same thing.

Change-Id: Ib7152eecde890fca58be42028cab18c9cb54221c

test/test.mk

@@ -49,6 +49,9 @@ NESTEGG_SRCS                           += ../third_party/nestegg/halloc/src/hlis
 NESTEGG_SRCS                           += ../third_party/nestegg/include/nestegg/nestegg.h
 NESTEGG_SRCS                           += ../third_party/nestegg/src/nestegg.c
 LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)    += $(NESTEGG_SRCS)
+LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)    += ../tools_common.h
+LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)    += ../webmdec.c
+LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)    += ../webmdec.h
 LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)    += webm_video_source.h
 
 LIBVPX_TEST_SRCS-$(CONFIG_DECODERS)    += test_vector_test.cc

test/webm_video_source.h

@@ -14,73 +14,20 @@
 #include <cstdlib>
 #include <new>
 #include <string>
-#include "third_party/nestegg/include/nestegg/nestegg.h"
+#include "../tools_common.h"
+#include "../webmdec.h"
 #include "test/video_source.h"
 
 namespace libvpx_test {
 
-static int
-nestegg_read_cb(void *buffer, size_t length, void *userdata) {
-  FILE *f = reinterpret_cast<FILE *>(userdata);
-
-  if (fread(buffer, 1, length, f) < length) {
-    if (ferror(f))
-      return -1;
-    if (feof(f))
-      return 0;
-  }
-  return 1;
-}
-
-
-static int
-nestegg_seek_cb(int64_t offset, int whence, void *userdata) {
-  FILE *f = reinterpret_cast<FILE *>(userdata);
-  switch (whence) {
-    case NESTEGG_SEEK_SET:
-      whence = SEEK_SET;
-      break;
-    case NESTEGG_SEEK_CUR:
-      whence = SEEK_CUR;
-      break;
-    case NESTEGG_SEEK_END:
-      whence = SEEK_END;
-      break;
-  };
-  return fseek(f, (long)offset, whence) ? -1 : 0;
-}
-
-
-static int64_t
-nestegg_tell_cb(void *userdata) {
-  FILE *f = reinterpret_cast<FILE *>(userdata);
-  return ftell(f);
-}
-
-
-static void
-nestegg_log_cb(nestegg *context, unsigned int severity, char const *format,
-               ...) {
-  va_list ap;
-
-  va_start(ap, format);
-  vfprintf(stderr, format, ap);
-  fprintf(stderr, "\n");
-  va_end(ap);
-}
-
 // This class extends VideoSource to allow parsing of WebM files,
 // so that we can do actual file decodes.
 class WebMVideoSource : public CompressedVideoSource {
  public:
   explicit WebMVideoSource(const std::string &file_name)
       : file_name_(file_name),
-        input_file_(NULL),
-        nestegg_ctx_(NULL),
-        pkt_(NULL),
-        video_track_(0),
-        chunk_(0),
-        chunks_(0),
+        vpx_ctx_(new VpxInputContext()),
+        webm_ctx_(new WebmInputContext()),
         buf_(NULL),
         buf_sz_(0),
         frame_(0),
@@ -88,42 +35,21 @@ class WebMVideoSource : public CompressedVideoSource {
   }
 
   virtual ~WebMVideoSource() {
-    if (input_file_)
-      fclose(input_file_);
-    if (nestegg_ctx_ != NULL) {
-      if (pkt_ != NULL) {
-        nestegg_free_packet(pkt_);
-      }
-      nestegg_destroy(nestegg_ctx_);
-    }
+    if (vpx_ctx_->file != NULL)
+      fclose(vpx_ctx_->file);
+    delete vpx_ctx_;
+    delete webm_ctx_;
   }
 
   virtual void Init() {
   }
 
   virtual void Begin() {
-    input_file_ = OpenTestDataFile(file_name_);
-    ASSERT_TRUE(input_file_ != NULL) << "Input file open failed. Filename: "
+    vpx_ctx_->file = OpenTestDataFile(file_name_);
+    ASSERT_TRUE(vpx_ctx_->file != NULL) << "Input file open failed. Filename: "
         << file_name_;
 
-    nestegg_io io = {nestegg_read_cb, nestegg_seek_cb, nestegg_tell_cb,
-                     input_file_};
-    ASSERT_FALSE(nestegg_init(&nestegg_ctx_, io, NULL, -1))
-        << "nestegg_init failed";
-
-    unsigned int n;
-    ASSERT_FALSE(nestegg_track_count(nestegg_ctx_, &n))
-        << "failed to get track count";
-
-    for (unsigned int i = 0; i < n; i++) {
-      int track_type = nestegg_track_type(nestegg_ctx_, i);
-      ASSERT_GE(track_type, 0) << "failed to get track type";
-
-      if (track_type == NESTEGG_TRACK_VIDEO) {
-        video_track_ = i;
-        break;
-      }
-    }
+    ASSERT_EQ(file_is_webm(webm_ctx_, vpx_ctx_), 1) << "file is not WebM";
 
     FillFrame();
   }
@@ -134,36 +60,12 @@ class WebMVideoSource : public CompressedVideoSource {
   }
 
   void FillFrame() {
-    ASSERT_TRUE(input_file_ != NULL);
-    if (chunk_ >= chunks_) {
-      unsigned int track;
-
-      do {
-        /* End of this packet, get another. */
-        if (pkt_ != NULL) {
-          nestegg_free_packet(pkt_);
-          pkt_ = NULL;
-        }
-
-        int again = nestegg_read_packet(nestegg_ctx_, &pkt_);
-        ASSERT_GE(again, 0) << "nestegg_read_packet failed";
-        if (!again) {
+    ASSERT_TRUE(vpx_ctx_->file != NULL);
+    const int status = webm_read_frame(webm_ctx_, &buf_, &buf_sz_, &buf_sz_);
+    ASSERT_GE(status, 0) << "webm_read_frame failed";
+    if (status == 1) {
       end_of_file_ = true;
-          return;
     }
-
-        ASSERT_FALSE(nestegg_packet_track(pkt_, &track))
-            << "nestegg_packet_track failed";
-      } while (track != video_track_);
-
-      ASSERT_FALSE(nestegg_packet_count(pkt_, &chunks_))
-          << "nestegg_packet_count failed";
-      chunk_ = 0;
-    }
-
-    ASSERT_FALSE(nestegg_packet_data(pkt_, chunk_, &buf_, &buf_sz_))
-        << "nestegg_packet_data failed";
-    chunk_++;
   }
 
   virtual const uint8_t *cxdata() const {
@@ -174,12 +76,8 @@ class WebMVideoSource : public CompressedVideoSource {
 
  protected:
   std::string file_name_;
-  FILE *input_file_;
-  nestegg *nestegg_ctx_;
-  nestegg_packet *pkt_;
-  unsigned int video_track_;
-  unsigned int chunk_;
-  unsigned int chunks_;
+  VpxInputContext *vpx_ctx_;
+  WebmInputContext *webm_ctx_;
   uint8_t *buf_;
   size_t buf_sz_;
   unsigned int frame_;