Add a variety of new tests including additional edge cases.

  - As always some of these have `is_valid = false`.
  - `test_000013`: Uses non-required trimmed samples.
  - `test_000097`: Uses a mono audio element and 32 bit=depth LPCM.
  - `test_000098`: Uses two layers and 32 bit-depth LPCM
  - `test_000116`: Places reserved OBUs at various spots within the bitstream.
  - `test_000117`: Uses `obu_exension_header`.
  - `test_000118`: Has a mix presentation which is valid in the "additional" profile, but not the "primary" profile.
  - `test_000124`: Has two sub-mixes.
  - `test_000125`: Uses a reserved `headphones_rendering_mode`.
  - `test_000126`: Has a reserved loudness layout.
  - `test_000127`: Has a mix presentation with too many audio elements for simple profile.
  - `test_000128`: Has a mix presentation with too many audio elements for base profile.
  - `test_000131`: Contains a loudness layout reserved in simple profile, but not in base-enhanced profile.
  - `test_000500`: Mixed-first order ambisonics using FLAC.
  - `test_000501`: Uses a single reserved OBU.
  - `test_000502`: Has 0 sub-mixes
  - `test_000503`: Uses the reserved fields in `info_type`.

Author: jwcullen

tests/test_000013.iamf

@@ -0,0 +1,163 @@
+# Copyright (c) 2023, Alliance for Open Media. All rights reserved
+#
+# This source code is subject to the terms of the BSD 3-Clause Clear License
+# and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear
+# License was not distributed with this source code in the LICENSE file, you
+# can obtain it at www.aomedia.org/license/software-license/bsd-3-c-c. 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.
+
+# proto-file: third_party/iamf_tools/iamf/cli/proto/user_metadata.proto
+# proto-message: UserMetadata
+
+test_vector_metadata {
+  human_readable_description:
+    "A stereo IAMF stream. Additional samples are trimmed from the start of "
+    "input wav file to make it shorter."
+  file_name_prefix: "test_000013"
+  is_valid: true
+  validate_user_loudness: true
+  mp4_fixed_timestamp: "2023-04-19 00:00:00"
+  primary_tested_spec_sections: ["3.2/num_samples_to_trim_at_end"]
+  base_test: "test_000005"
+}
+
+ia_sequence_header_metadata {
+  primary_profile: PROFILE_VERSION_SIMPLE
+  additional_profile: PROFILE_VERSION_SIMPLE
+}
+
+codec_config_metadata {
+  codec_config_id: 200
+  codec_config {
+    codec_id: CODEC_ID_LPCM
+    num_samples_per_frame: 64
+    audio_roll_distance: 0
+    decoder_config_lpcm {
+      sample_format_flags: LPCM_LITTLE_ENDIAN
+      sample_size: 16
+      sample_rate: 16000
+    }
+  }
+}
+
+audio_element_metadata {
+  audio_element_id: 300
+  audio_element_type: AUDIO_ELEMENT_CHANNEL_BASED
+  reserved: 0
+  codec_config_id: 200
+  num_substreams: 1
+  audio_substream_ids: [0]
+  num_parameters: 0
+  scalable_channel_layout_config {
+    num_layers: 1
+    reserved: 0
+    channel_audio_layer_configs: [
+      {
+        loudspeaker_layout: LOUDSPEAKER_LAYOUT_STEREO
+        output_gain_is_present_flag: 0
+        recon_gain_is_present_flag: 0
+        reserved_a: 0
+        substream_count: 1
+        coupled_substream_count: 1
+      }
+    ]
+  }
+}
+
+mix_presentation_metadata {
+  mix_presentation_id: 42
+  count_label: 1
+  language_labels: ["en-us"]
+  mix_presentation_annotations_array: [
+    {
+      mix_presentation_friendly_label: "test_mix_pres"
+    }
+  ]
+  num_sub_mixes: 1
+  sub_mixes {
+    num_audio_elements: 1
+    audio_elements {
+      audio_element_id: 300
+      mix_presentation_element_annotations_array: [
+        {
+          audio_element_friendly_label: "test_sub_mix_0_audio_element_0"
+        }
+      ]
+      rendering_config {
+        headphones_rendering_mode: HEADPHONES_RENDERING_MODE_STEREO
+      }
+      element_mix_config {
+        mix_gain {
+          param_definition {
+            parameter_id: 100
+            parameter_rate: 16000
+            param_definition_mode: 1
+            reserved: 0
+          }
+          default_mix_gain: 0
+        }
+      }
+    }
+    output_mix_config {
+      output_mix_gain {
+        param_definition {
+          parameter_id: 100
+          parameter_rate: 16000
+          param_definition_mode: 1
+          reserved: 0
+        }
+        default_mix_gain: 0
+      }
+    }
+    num_layouts: 1
+    layouts {
+      loudness_layout {
+        layout_type: LAYOUT_TYPE_LOUDSPEAKERS_SS_CONVENTION
+        ss_layout {
+          sound_system: SOUND_SYSTEM_A_0_2_0
+          reserved: 0
+        }
+      }
+      loudness {
+        info_type_bit_masks: []
+        integrated_loudness: -13734
+        digital_peak: -12879
+      }
+    }
+  }
+}
+
+audio_frame_metadata {
+  wav_filename: "sawtooth_100_stereo.wav"
+  samples_to_trim_at_end: 0
+  samples_to_trim_at_start: 3
+  audio_element_id: 300
+  channel_ids: [0, 1]
+  channel_labels: ["L2", "R2"]
+}
+
+parameter_block_metadata {
+  parameter_id: 100
+  start_timestamp: 0
+  duration: 8000
+  num_subblocks: 1
+  constant_subblock_duration: 8000
+  subblocks: [
+    {
+      mix_gain_parameter_data {
+        animation_type: ANIMATE_STEP
+        param_data {
+          step {
+            start_point_value: 0
+          }
+        }
+      }
+    }
+  ]
+}
+
+temporal_delimiter_metadata {
+  enable_temporal_delimiters: false
+}

tests/test_000013.textproto

@@ -0,0 +1,159 @@
+# Copyright (c) 2023, Alliance for Open Media. All rights reserved
+#
+# This source code is subject to the terms of the BSD 3-Clause Clear License
+# and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear
+# License was not distributed with this source code in the LICENSE file, you
+# can obtain it at www.aomedia.org/license/software-license/bsd-3-c-c. 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.
+
+# proto-file: third_party/iamf_tools/iamf/cli/proto/user_metadata.proto
+# proto-message: UserMetadata
+
+test_vector_metadata {
+  human_readable_description: "A mono IAMF stream with a bit-depth of 32."
+  file_name_prefix: "test_000097"
+  is_valid: true
+  validate_user_loudness: true
+  mp4_fixed_timestamp: "2023-05-05 00:00:00"
+  primary_tested_spec_sections: [
+    "3.6.2/loudspeaker_layout == Mono",
+    "3.9/Audio Frame OBU Syntax and Semantics",
+    "3.11.4/sample_size"
+  ]
+  base_test: "test_000031"
+}
+
+ia_sequence_header_metadata {
+  primary_profile: PROFILE_VERSION_SIMPLE
+  additional_profile: PROFILE_VERSION_SIMPLE
+}
+
+codec_config_metadata {
+  codec_config_id: 200
+  codec_config {
+    codec_id: CODEC_ID_LPCM
+    num_samples_per_frame: 64
+    audio_roll_distance: 0
+    decoder_config_lpcm {
+      sample_format_flags: LPCM_LITTLE_ENDIAN
+      sample_size: 32
+      sample_rate: 16000
+    }
+  }
+}
+
+audio_element_metadata {
+  audio_element_id: 300
+  audio_element_type: AUDIO_ELEMENT_CHANNEL_BASED
+  reserved: 0
+  codec_config_id: 200
+  num_substreams: 1
+  audio_substream_ids: [0]
+  num_parameters: 0
+  scalable_channel_layout_config {
+    num_layers: 1
+    reserved: 0
+    channel_audio_layer_configs: [
+      {
+        loudspeaker_layout: LOUDSPEAKER_LAYOUT_MONO
+        output_gain_is_present_flag: 0
+        recon_gain_is_present_flag: 0
+        reserved_a: 0
+        substream_count: 1
+        coupled_substream_count: 0
+      }
+    ]
+  }
+}
+
+mix_presentation_metadata {
+  mix_presentation_id: 42
+  count_label: 1
+  language_labels: ["en-us"]
+  mix_presentation_annotations_array: [
+    {
+      mix_presentation_friendly_label: "test_mix_pres"
+    }
+  ]
+  num_sub_mixes: 1
+  sub_mixes {
+    num_audio_elements: 1
+    audio_elements {
+      audio_element_id: 300
+      mix_presentation_element_annotations_array: [
+        {
+          audio_element_friendly_label: "test_sub_mix_0_audio_element_0"
+        }
+      ]
+      rendering_config {
+        headphones_rendering_mode: HEADPHONES_RENDERING_MODE_STEREO
+      }
+      element_mix_config {
+        mix_gain {
+          param_definition {
+            parameter_id: 998  # Non-existent; default will be used
+            parameter_rate: 16000
+            param_definition_mode: 1
+            reserved: 0
+          }
+          default_mix_gain: 0
+        }
+      }
+    }
+    output_mix_config {
+      output_mix_gain {
+        param_definition {
+          parameter_id: 998  # Non-existent; default will be used
+          parameter_rate: 16000
+          param_definition_mode: 1
+          reserved: 0
+        }
+        default_mix_gain: 0
+      }
+    }
+    num_layouts: 2
+    layouts {
+      loudness_layout {
+        layout_type: LAYOUT_TYPE_LOUDSPEAKERS_SS_CONVENTION
+        ss_layout {
+          sound_system: SOUND_SYSTEM_12_0_1_0  # Mono
+          reserved: 0
+        }
+      }
+      loudness {
+        info_type_bit_masks: []
+        integrated_loudness: -5892
+        digital_peak: -5120
+      }
+    }
+    layouts {
+      loudness_layout {
+        layout_type: LAYOUT_TYPE_LOUDSPEAKERS_SS_CONVENTION
+        ss_layout {
+          sound_system: SOUND_SYSTEM_A_0_2_0
+          reserved: 0
+        }
+      }
+      loudness {
+        info_type_bit_masks: []
+        integrated_loudness: -5892
+        digital_peak: -5890
+      }
+    }
+  }
+}
+
+audio_frame_metadata {
+  wav_filename: "sine_1000_16khz_512ms_s32le.wav"
+  samples_to_trim_at_end: 0
+  samples_to_trim_at_start: 0
+  audio_element_id: 300
+  channel_ids: [0]
+  channel_labels: ["M"]
+}
+
+temporal_delimiter_metadata {
+  enable_temporal_delimiters: false
+}