On Mon, Nov 11, 2019 at 09:05:02AM +0800, lance.lmw...@gmail.com wrote:
> From: Limin Wang <lance.lmw...@gmail.com>
>
> mp3 header bitstream syntax:
> header()
> {
> syncword 12bits bslsf
> id 1bit bslsf
> layer 2bit bslsf
> protection_bit 1bit bslsf
> bitrate_index 4bits bslsf
> sampling_frequency 2bits bslsf
> padding_bit 1bit bslsf
> private_bit 1bit bslsf
> mode 2bits bslsf
> mode_extension 2bits bslsf
> copyright 1bit bslsf
> original/home 1bit bslsf
> emphasis 2bits bslsf
> }
>
> if the header is masking with MP3_MASK(0xFFFE0CCF), below fields will be
> cleared:
> protection_bit, bitrate_index, sampling_freqency, mode
>
> with SAME_HEADER_MASK(0xFFFE0C00), extra below fields will be cleared which
> didn't make
> sense:
> mode_extension, copyright, original/home, emphasis
>
> As the MP3_MASK is good for same mp3 header masking and is defined in the
> header, so it's preferable to remove SAME_HEADER_MASK to keep the masking
> same.
>
> Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
> ---
> libavformat/mp3dec.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)will apply this and the previous patch thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The real ebay dictionary, page 1 "Used only once" - "Some unspecified defect prevented a second use" "In good condition" - "Can be repaird by experienced expert" "As is" - "You wouldnt want it even if you were payed for it, if you knew ..."
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