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From: Mattias Wadman <mattias.wadman@gmail.com>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH] avocdec/flac_parser: another fix
Date: Wed, 7 Sep 2022 12:31:11 +0200
Message-ID: <CACHq7jeur8A2BZ4ax04WUpdpas1nqjGA0-SC_F4P+aR6QZvtaQ@mail.gmail.com> (raw)
In-Reply-To: <CAPYw7P40pW-TtapFEpakovXUhCCC5h0WOwfBq06Xv5ghd3UE3A@mail.gmail.com>

On Mon, Sep 5, 2022 at 8:16 PM Paul B Mahol <onemda@gmail.com> wrote:

> Patch attached.
>

Thanks and can confirm that the patch produces the same samples as the flac
reference decoder for the original file in
https://trac.ffmpeg.org/ticket/9621 that I could not share.

But I'm not sure I follow how the patch works. I read it as we skip
checking CRC if the current frame or sample number is the expected next one?

+    if ((fpc->last_fi.frame_or_sample_num + 1 ==
header_fi->frame_or_sample_num) ||
+        (fpc->last_fi.frame_or_sample_num + fpc->last_fi.blocksize ==
header_fi->frame_or_sample_num)) {

Would it make sense to look at the blocking strategy bit to know which one
to check?
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  reply	other threads:[~2022-09-07 10:31 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-05 18:19 Paul B Mahol
2022-09-07 10:31 ` Mattias Wadman [this message]
2022-09-07 10:51   ` Paul B Mahol

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