[FFmpeg-devel] [PATCH] avcodec/ac3_parser: recognize LE bitstream variant

[Paul B Mahol]

will apply

On 2/21/20, Paul B Mahol <onemda at gmail.com> wrote:
> Signed-off-by: Paul B Mahol <onemda at gmail.com>
> ---
>  libavcodec/ac3_parser.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/libavcodec/ac3_parser.c b/libavcodec/ac3_parser.c
> index 1e203ae6ac..ba171653ef 100644
> --- a/libavcodec/ac3_parser.c
> +++ b/libavcodec/ac3_parser.c
> @@ -201,6 +201,12 @@ static int ac3_sync(uint64_t state, AACAC3ParseContext
> *hdr_info,
>      AC3HeaderInfo hdr;
>      GetBitContext gbc;
>
> +    if (tmp.u8[1] == 0x77 && tmp.u8[2] == 0x0b) {
> +        FFSWAP(uint8_t, tmp.u8[1], tmp.u8[2]);
> +        FFSWAP(uint8_t, tmp.u8[3], tmp.u8[4]);
> +        FFSWAP(uint8_t, tmp.u8[5], tmp.u8[6]);
> +    }
> +
>      init_get_bits(&gbc, tmp.u8+8-AC3_HEADER_SIZE, 54);
>      err = ff_ac3_parse_header(&gbc, &hdr);
>
> --
> 2.17.1
>
>