> -----Original Message----- > From: Jun Zhao [mailto:mypopy...@gmail.com] > Sent: Thursday, September 21, 2017 1:01 PM > To: FFmpeg development discussions and patches > <ffmpeg-devel@ffmpeg.org>; Li, Zhong <zhong...@intel.com> > Cc: s...@jkqxz.net; Zhao, Jun <jun.z...@intel.com>; nfx...@googlemail.com > Subject: Re: [FFmpeg-devel] [PATCH] mpeg2_hwaccel: always submit twice > for a frame with two fileds. > > > > On 2017/9/21 11:26, Zhong Li wrote: > > Though this patch to fix https://trac.ffmpeg.org/ticket/6668, and > > allows to set the slice_flags option to decoder, I belive it is > > unnecessary to set SLICE_FLAG_ALLOW_FIELD flag to other hwaccels(dxva, > vdpau, etc). > > > > Signed-off-by: Zhong Li <zhong...@intel.com> > > --- > > libavcodec/mpeg12dec.c | 3 +-- > > libavcodec/options_table.h | 2 +- > > 2 files changed, 2 insertions(+), 3 deletions(-) > > > > diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c index > > 22c29c1505..701845a46c 100644 > > --- a/libavcodec/mpeg12dec.c > > +++ b/libavcodec/mpeg12dec.c > > @@ -1689,8 +1689,7 @@ static int mpeg_field_start(MpegEncContext *s, > const uint8_t *buf, int buf_size) > > return AVERROR_INVALIDDATA; > > } > > > > - if (s->avctx->hwaccel && > > - (s->avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD)) { > > + if (s->avctx->hwaccel) { > > if ((ret = s->avctx->hwaccel->end_frame(s->avctx)) < 0) { > > av_log(avctx, AV_LOG_ERROR, > > "hardware accelerator failed to decode first > > field\n"); diff --git a/libavcodec/options_table.h > > b/libavcodec/options_table.h index 12712fb541..5b9e344554 100644 > > --- a/libavcodec/options_table.h > > +++ b/libavcodec/options_table.h > > @@ -340,7 +340,7 @@ static const AVOption avcodec_options[] = { #if > > FF_API_PRIVATE_OPT {"context", "context model", > > OFFSET(context_model), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, > > INT_MAX, V|E}, #endif -{"slice_flags", NULL, OFFSET(slice_flags), > > AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX}, > > +{"slice_flags", NULL, OFFSET(slice_flags), AV_OPT_TYPE_INT, {.i64 = > > +DEFAULT }, INT_MIN, INT_MAX, V|D}, > > #if FF_API_XVMC > > {"xvmc_acceleration", NULL, OFFSET(xvmc_acceleration), > > AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX}, #endif /* > > FF_API_XVMC */ > I think need to split 2 patches > 1. enable the option "slice_flags" for decoder 2. fix ticket 6668 Ok, it makes sense, will update it later.
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