Add isLittleEndian() method to LpcmDecoderConfig.

PiperOrigin-RevId: 632531735
AOMediaCodec · May 14, 2024 · 6aaf77a · 6aaf77a
1 parent 3c280d8
commit 6aaf77a
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Showing 4 changed files with 230 additions and 157 deletions.
diff --git a/iamf/obu/decoder_config/lpcm_decoder_config.cc b/iamf/obu/decoder_config/lpcm_decoder_config.cc
@@ -79,6 +79,11 @@ absl::Status ValidateAudioRollDistance(int16_t audio_roll_distance) {
 
 }  // namespace
 
+bool LpcmDecoderConfig::IsLittleEndian() const {
+  return sample_format_flags_bitmask_ &
+         LpcmDecoderConfig::LpcmFormatFlagsBitmask::kLpcmLittleEndian;
+}
+
 absl::Status LpcmDecoderConfig::ValidateAndWrite(int16_t audio_roll_distance,
                                                  WriteBitBuffer& wb) const {
   RETURN_IF_NOT_OK(ValidateAudioRollDistance(audio_roll_distance));

diff --git a/iamf/obu/decoder_config/lpcm_decoder_config.h b/iamf/obu/decoder_config/lpcm_decoder_config.h
@@ -36,6 +36,9 @@ class LpcmDecoderConfig {
   friend bool operator==(const LpcmDecoderConfig& lhs,
                          const LpcmDecoderConfig& rhs) = default;
 
+  /*!\brief Returns true if the samples are encoded in little-endian format.*/
+  bool IsLittleEndian() const;
+
   /*!\brief Validates and writes the `LpcmDecoderConfig` to a buffer.
    *
    * \param audio_roll_distance `audio_roll_distance` in the associated Codec

diff --git a/iamf/obu/decoder_config/tests/BUILD b/iamf/obu/decoder_config/tests/BUILD
@@ -34,6 +34,7 @@ cc_test(
         "//iamf/common/tests:test_utils",
         "//iamf/obu/decoder_config:lpcm_decoder_config",
         "@com_google_absl//absl/status",
+        "@com_google_absl//absl/status:status_matchers",
         "@com_google_googletest//:gtest_main",
     ],
 )