[FFmpeg-devel] [PATCH 3/3] avcodec/tta: also do crc check when er compliant is set

Paul B Mahol onemda at gmail.com
Sun Oct 27 20:15:16 CET 2013


On 10/27/13, Michael Niedermayer <michaelni at gmx.at> wrote:
> On Sun, Oct 27, 2013 at 05:16:13PM +0000, Paul B Mahol wrote:
>> On 10/27/13, Michael Niedermayer <michaelni at gmx.at> wrote:
>> > As well as do the header crc check at "er careful" level

I wonder what is point of such separation.

Just use compliant for both.

>> >
>> > Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
>> > ---
>> >  libavcodec/takdec.c |    4 ++--
>> >  1 file changed, 2 insertions(+), 2 deletions(-)
>> >
>> > diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c
>> > index 1017032..67049b6 100644
>> > --- a/libavcodec/takdec.c
>> > +++ b/libavcodec/takdec.c
>> > @@ -686,7 +686,7 @@ static int tak_decode_frame(AVCodecContext *avctx,
>> > void
>> > *data,
>> >      if ((ret = ff_tak_decode_frame_header(avctx, gb, &s->ti, 0)) < 0)
>> >          return ret;
>> >
>> > -    if (avctx->err_recognition & AV_EF_CRCCHECK) {
>> > +    if (avctx->err_recognition & (AV_EF_CRCCHECK|AV_EF_CAREFUL)) {
>> >          hsize = get_bits_count(gb) / 8;
>> >          if (ff_tak_check_crc(pkt->data, hsize)) {
>> >              av_log(avctx, AV_LOG_ERROR, "CRC error\n");
>> > @@ -861,7 +861,7 @@ static int tak_decode_frame(AVCodecContext *avctx,
>> > void
>> > *data,
>> >      else if (get_bits_left(gb) > 0)
>> >          av_log(avctx, AV_LOG_DEBUG, "underread\n");
>> >
>> > -    if (avctx->err_recognition & AV_EF_CRCCHECK) {
>> > +    if (avctx->err_recognition & (AV_EF_CRCCHECK | AV_EF_COMPLIANT)) {
>> >          if (ff_tak_check_crc(pkt->data + hsize,
>> >                               get_bits_count(gb) / 8 - hsize)) {
>> >              av_log(avctx, AV_LOG_ERROR, "CRC error\n");
>> > --
>> > 1.7.9.5
>> >
>> > _______________________________________________
>> > ffmpeg-devel mailing list
>> > ffmpeg-devel at ffmpeg.org
>> > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>> >
>>
>> Why this got into tta thread?
>
> because i reused the commit message and failed to update the tta to
> tak
> ive already fixed that locally a moment after sending
>
> [...]
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> I have never wished to cater to the crowd; for what I know they do not
> approve, and what they approve I do not know. -- Epicurus
>


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