diff options
Diffstat (limited to 'media/libstagefright/avc_utils.cpp')
-rw-r--r-- | media/libstagefright/avc_utils.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/media/libstagefright/avc_utils.cpp b/media/libstagefright/avc_utils.cpp index 8a42e8b..07aa140 100644 --- a/media/libstagefright/avc_utils.cpp +++ b/media/libstagefright/avc_utils.cpp @@ -329,6 +329,28 @@ bool IsIDR(const sp<ABuffer> &buffer) { return foundIDR; } +bool IsAVCReferenceFrame(const sp<ABuffer> &accessUnit) { + const uint8_t *data = accessUnit->data(); + size_t size = accessUnit->size(); + + const uint8_t *nalStart; + size_t nalSize; + while (getNextNALUnit(&data, &size, &nalStart, &nalSize, true) == OK) { + CHECK_GT(nalSize, 0u); + + unsigned nalType = nalStart[0] & 0x1f; + + if (nalType == 5) { + return true; + } else if (nalType == 1) { + unsigned nal_ref_idc = (nalStart[0] >> 5) & 3; + return nal_ref_idc != 0; + } + } + + return true; +} + sp<MetaData> MakeAACCodecSpecificData( unsigned profile, unsigned sampling_freq_index, unsigned channel_configuration) { |