Move aom source to a sub-directory under media/libaom

There is no damned reason to treat this differently than any other media lib given its license and there never was.

1 files changed, 0 insertions, 147 deletions

diff --git a/third_party/aom/av1/common/obu_util.c b/third_party/aom/av1/common/obu_util.c
deleted file mode 100644
index 823b700b1..000000000
--- a/third_party/aom/av1/common/obu_util.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright (c) 2018, 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 "av1/common/obu_util.h"
-
-#include "aom_dsp/bitreader_buffer.h"
-
-// Returns 1 when OBU type is valid, and 0 otherwise.
-static int valid_obu_type(int obu_type) {
-  int valid_type = 0;
-  switch (obu_type) {
-    case OBU_SEQUENCE_HEADER:
-    case OBU_TEMPORAL_DELIMITER:
-    case OBU_FRAME_HEADER:
-    case OBU_TILE_GROUP:
-    case OBU_METADATA:
-    case OBU_FRAME:
-    case OBU_REDUNDANT_FRAME_HEADER:
-    case OBU_TILE_LIST:
-    case OBU_PADDING: valid_type = 1; break;
-    default: break;
-  }
-  return valid_type;
-}
-
-static aom_codec_err_t read_obu_size(const uint8_t *data,
-                                     size_t bytes_available,
-                                     size_t *const obu_size,
-                                     size_t *const length_field_size) {
-  uint64_t u_obu_size = 0;
-  if (aom_uleb_decode(data, bytes_available, &u_obu_size, length_field_size) !=
-      0) {
-    return AOM_CODEC_CORRUPT_FRAME;
-  }
-
-  if (u_obu_size > UINT32_MAX) return AOM_CODEC_CORRUPT_FRAME;
-  *obu_size = (size_t)u_obu_size;
-  return AOM_CODEC_OK;
-}
-
-// Parses OBU header and stores values in 'header'.
-static aom_codec_err_t read_obu_header(struct aom_read_bit_buffer *rb,
-                                       int is_annexb, ObuHeader *header) {
-  if (!rb || !header) return AOM_CODEC_INVALID_PARAM;
-
-  const ptrdiff_t bit_buffer_byte_length = rb->bit_buffer_end - rb->bit_buffer;
-  if (bit_buffer_byte_length < 1) return AOM_CODEC_CORRUPT_FRAME;
-
-  header->size = 1;
-
-  if (aom_rb_read_bit(rb) != 0) {
-    // Forbidden bit. Must not be set.
-    return AOM_CODEC_CORRUPT_FRAME;
-  }
-
-  header->type = (OBU_TYPE)aom_rb_read_literal(rb, 4);
-
-  if (!valid_obu_type(header->type)) return AOM_CODEC_CORRUPT_FRAME;
-
-  header->has_extension = aom_rb_read_bit(rb);
-  header->has_size_field = aom_rb_read_bit(rb);
-
-  if (!header->has_size_field && !is_annexb) {
-    // section 5 obu streams must have obu_size field set.
-    return AOM_CODEC_UNSUP_BITSTREAM;
-  }
-
-  if (aom_rb_read_bit(rb) != 0) {
-    // obu_reserved_1bit must be set to 0.
-    return AOM_CODEC_CORRUPT_FRAME;
-  }
-
-  if (header->has_extension) {
-    if (bit_buffer_byte_length == 1) return AOM_CODEC_CORRUPT_FRAME;
-
-    header->size += 1;
-    header->temporal_layer_id = aom_rb_read_literal(rb, 3);
-    header->spatial_layer_id = aom_rb_read_literal(rb, 2);
-    if (aom_rb_read_literal(rb, 3) != 0) {
-      // extension_header_reserved_3bits must be set to 0.
-      return AOM_CODEC_CORRUPT_FRAME;
-    }
-  }
-
-  return AOM_CODEC_OK;
-}
-
-aom_codec_err_t aom_read_obu_header(uint8_t *buffer, size_t buffer_length,
-                                    size_t *consumed, ObuHeader *header,
-                                    int is_annexb) {
-  if (buffer_length < 1 || !consumed || !header) return AOM_CODEC_INVALID_PARAM;
-
-  // TODO(tomfinegan): Set the error handler here and throughout this file, and
-  // confirm parsing work done via aom_read_bit_buffer is successful.
-  struct aom_read_bit_buffer rb = { buffer, buffer + buffer_length, 0, NULL,
-                                    NULL };
-  aom_codec_err_t parse_result = read_obu_header(&rb, is_annexb, header);
-  if (parse_result == AOM_CODEC_OK) *consumed = header->size;
-  return parse_result;
-}
-
-aom_codec_err_t aom_read_obu_header_and_size(const uint8_t *data,
-                                             size_t bytes_available,
-                                             int is_annexb,
-                                             ObuHeader *obu_header,
-                                             size_t *const payload_size,
-                                             size_t *const bytes_read) {
-  size_t length_field_size = 0, obu_size = 0;
-  aom_codec_err_t status;
-
-  if (is_annexb) {
-    // Size field comes before the OBU header, and includes the OBU header
-    status =
-        read_obu_size(data, bytes_available, &obu_size, &length_field_size);
-
-    if (status != AOM_CODEC_OK) return status;
-  }
-
-  struct aom_read_bit_buffer rb = { data + length_field_size,
-                                    data + bytes_available, 0, NULL, NULL };
-
-  status = read_obu_header(&rb, is_annexb, obu_header);
-  if (status != AOM_CODEC_OK) return status;
-
-  if (is_annexb) {
-    // Derive the payload size from the data we've already read
-    if (obu_size < obu_header->size) return AOM_CODEC_CORRUPT_FRAME;
-
-    *payload_size = obu_size - obu_header->size;
-  } else {
-    // Size field comes after the OBU header, and is just the payload size
-    status = read_obu_size(data + obu_header->size,
-                           bytes_available - obu_header->size, payload_size,
-                           &length_field_size);
-    if (status != AOM_CODEC_OK) return status;
-  }
-
-  *bytes_read = length_field_size + obu_header->size;
-  return AOM_CODEC_OK;
-}