Re: [FFmpeg-devel] [PATCH 2/2] avcodec/mediacodecdec: check ff_Build_SDK_INT return value

["Tomas Härdin" <git@haerdin.se>]

mån 2023-01-09 klockan 21:14 +0800 skrev zhilizhao(赵志立):
> 
> 
> > On Jan 9, 2023, at 20:34, Tomas Härdin <git@haerdin.se> wrote:
> > 
> > tis 2023-01-10 klockan 00:36 +0800 skrev Zhao Zhili:
> > > From: Zhao Zhili <zhilizhao@tencent.com>
> > > 
> > > Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
> > > ---
> > >  libavcodec/mediacodecdec.c | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/libavcodec/mediacodecdec.c
> > > b/libavcodec/mediacodecdec.c
> > > index 11f655a9aa..6ef23d7369 100644
> > > --- a/libavcodec/mediacodecdec.c
> > > +++ b/libavcodec/mediacodecdec.c
> > > @@ -415,7 +415,7 @@ static av_cold int
> > > mediacodec_decode_init(AVCodecContext *avctx)
> > >             s->ctx->codec_name, ret);
> > >  
> > >      sdk_int = ff_Build_SDK_INT(avctx);
> > > -    if (sdk_int <= 23 &&
> > > +    if (sdk_int > 0 && sdk_int <= 23 &&
> > >          strcmp(s->ctx->codec_name,
> > > "OMX.amlogic.mpeg2.decoder.awesome") == 0) {
> > >          av_log(avctx, AV_LOG_INFO, "Enabling workaround for %s
> > > on
> > > API=%d\n",
> > >                 s->ctx->codec_name, sdk_int);
> > 
> > Maybe it should bail out if it can't figure out the SDK level?
> 
> ff_Build_SDK_INT always fail when JVM isn’t available and target
> api level < 24. If there are more usecases of ff_Build_SDK_INT(),
> we might make it more robust.

A comment to this effect might be good then


> The patch fixed a hypothetical case when the codec is
> OMX.amlogic.mpeg2.decoder.awesome
> and the device api level >= 28 (get codec name works after API >=
> 28),
> amlogic_mpeg2_api23_workaround is enabled (which shouldn’t).

Fair enough

/Tomas

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