1 files changed, 85 insertions, 0 deletions
diff --git a/dom/media/platforms/ffmpeg/ffmpeg60/include/libavcodec/avdct.h b/dom/media/platforms/ffmpeg/ffmpeg60/include/libavcodec/avdct.h
new file mode 100644
index 0000000000..9edf4c187e
--- /dev/null
+++ b/dom/media/platforms/ffmpeg/ffmpeg60/include/libavcodec/avdct.h
@@ -0,0 +1,85 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_AVDCT_H
+#define AVCODEC_AVDCT_H
+
+#include "libavutil/opt.h"
+
+/**
+ * AVDCT context.
+ * @note function pointers can be NULL if the specific features have been
+ *       disabled at build time.
+ */
+typedef struct AVDCT {
+  const AVClass* av_class;
+
+  void (*idct)(int16_t* block /* align 16 */);
+
+  /**
+   * IDCT input permutation.
+   * Several optimized IDCTs need a permutated input (relative to the
+   * normal order of the reference IDCT).
+   * This permutation must be performed before the idct_put/add.
+   * Note, normally this can be merged with the zigzag/alternate scan<br>
+   * An example to avoid confusion:
+   * - (->decode coeffs -> zigzag reorder -> dequant -> reference IDCT -> ...)
+   * - (x -> reference DCT -> reference IDCT -> x)
+   * - (x -> reference DCT -> simple_mmx_perm = idct_permutation
+   *    -> simple_idct_mmx -> x)
+   * - (-> decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant
+   *    -> simple_idct_mmx -> ...)
+   */
+  uint8_t idct_permutation[64];
+
+  void (*fdct)(int16_t* block /* align 16 */);
+
+  /**
+   * DCT algorithm.
+   * must use AVOptions to set this field.
+   */
+  int dct_algo;
+
+  /**
+   * IDCT algorithm.
+   * must use AVOptions to set this field.
+   */
+  int idct_algo;
+
+  void (*get_pixels)(int16_t* block /* align 16 */,
+                     const uint8_t* pixels /* align 8 */, ptrdiff_t line_size);
+
+  int bits_per_sample;
+
+  void (*get_pixels_unaligned)(int16_t* block /* align 16 */,
+                               const uint8_t* pixels, ptrdiff_t line_size);
+} AVDCT;
+
+/**
+ * Allocates a AVDCT context.
+ * This needs to be initialized with avcodec_dct_init() after optionally
+ * configuring it with AVOptions.
+ *
+ * To free it use av_free()
+ */
+AVDCT* avcodec_dct_alloc(void);
+int avcodec_dct_init(AVDCT*);
+
+const AVClass* avcodec_dct_get_class(void);
+
+#endif /* AVCODEC_AVDCT_H */