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| author | Harish Mahendrakar <harish.mahendrakar@ittiam.com> | 2021-09-29 16:33:58 -0700 |
|---|---|---|
| committer | Harish Mahendrakar <harish.mahendrakar@ittiam.com> | 2021-09-29 17:20:50 -0700 |
| commit | b10161aba2ac6133f3fa4049921ad024c4dcab16 (patch) | |
| tree | a11e8fedcd83119054957062a337879d0b0af2a5 /decoder | |
| parent | c8b3f9e46f68ef18d1eb65be7a2132dc960e7720 (diff) | |
| download | libhevc-b10161aba2ac6133f3fa4049921ad024c4dcab16.tar.gz | |
decoder: Ignore RASL NALs after flush
After flush, if the first slice NAL sent to decoder is a CRA
picture, then it may have associated RASL NALs that need to
be skipped as they may contain references to pictures that
are not present in the bitstream that is fed to the decoder.
Currently decoder was handling this case only at the start
of decode and after receiving an EOS NAL. Now it is updated
to ignore such RASL NALs associated with CRA after flush as
well.
This is needed to handle seek in clips, where CRA NALS are
marked as sync points.
Bug: 194768162
Test: poc in bug
Test: atest VtsHalMediaC2V1_0TargetVideoDecTest
Test: atest CtsMediaV2TestCases:CodecDecoderTest
Change-Id: If5f38b0689c98c4d2a2a720b81d7e28593be5732
Diffstat (limited to 'decoder')
| -rw-r--r-- | decoder/ihevcd_api.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/decoder/ihevcd_api.c b/decoder/ihevcd_api.c index 4d094be..d8ee57d 100644 --- a/decoder/ihevcd_api.c +++ b/decoder/ihevcd_api.c @@ -2427,6 +2427,10 @@ WORD32 ihevcd_set_flush_mode(iv_obj_t *ps_codec_obj, /* once it comes out of flush mode */ ps_codec->u4_pic_cnt = 0; ps_codec->u4_disp_cnt = 0; + + /* If the first slice NAL fed to decoder after flush is a CRA NAL, then */ + /* it may have associated RASL nals that need to be skipped */ + ps_codec->i4_cra_as_first_pic = 1; return IV_SUCCESS; |