> -----Original Message----- > From: Fu, Linjie > Sent: Friday, August 2, 2019 17:54 > To: ffmpeg-devel@ffmpeg.org > Cc: Fu, Linjie <linjie...@intel.com> > Subject: [PATCH] lavf/vf_deinterlace_vaapi: flush queued frame in field > mode > > Add deint_vaapi_request_frame for deinterlace_vaapi, send NULL frame > to flush the queued frame. > > Fix the frame drop issue in field mode: > > ffmpeg -hwaccel vaapi -vaapi_device /dev/dri/renderD128 -v verbose -c:v > h264 -i ./input.h264 -vf 'format=nv12|vaapi,hwupload, > deinterlace_vaapi=mode=bob:rate=field,hwdownload,format=nv12' > -pix_fmt yuv420p -f rawvideo -vsync passthrough -y dump.yuv > > Signed-off-by: Linjie Fu <linjie...@intel.com> > --- > libavfilter/vf_deinterlace_vaapi.c | 46 > ++++++++++++++++++++++++++++++++------ > 1 file changed, 39 insertions(+), 7 deletions(-) > > diff --git a/libavfilter/vf_deinterlace_vaapi.c > b/libavfilter/vf_deinterlace_vaapi.c > index 72d0349..c811327 100644 > --- a/libavfilter/vf_deinterlace_vaapi.c > +++ b/libavfilter/vf_deinterlace_vaapi.c > @@ -48,6 +48,9 @@ typedef struct DeintVAAPIContext { > int queue_count; > AVFrame *frame_queue[MAX_REFERENCES]; > int extra_delay_for_timestamps; > + > + int eof; > + int prev_pts; > } DeintVAAPIContext; > > static const char *deint_vaapi_mode_name(int mode) > @@ -190,11 +193,16 @@ static int deint_vaapi_filter_frame(AVFilterLink > *inlink, AVFrame *input_frame) > void *filter_params_addr = NULL; > int err, i, field, current_frame_index; > > - av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n", > - av_get_pix_fmt_name(input_frame->format), > - input_frame->width, input_frame->height, input_frame->pts); > + // NULL frame is used to flush the queue in field mode > + if (input_frame) > + av_log(avctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u > (%"PRId64").\n", > + av_get_pix_fmt_name(input_frame->format), > + input_frame->width, input_frame->height, input_frame->pts); > + else if (ctx->field_rate == 1) { > + return 0; > + } > > - if (ctx->queue_count < ctx->queue_depth) { > + if (input_frame && ctx->queue_count < ctx->queue_depth) { > ctx->frame_queue[ctx->queue_count++] = input_frame; > if (ctx->queue_count < ctx->queue_depth) { > // Need more reference surfaces before we can continue. > @@ -291,6 +299,8 @@ static int deint_vaapi_filter_frame(AVFilterLink *inlink, > AVFrame *input_frame) > if (ctx->field_rate == 2) { > if (field == 0) > output_frame->pts = 2 * input_frame->pts; > + else if (ctx->eof) > + output_frame->pts = 3 * input_frame->pts - ctx->prev_pts; > else > output_frame->pts = input_frame->pts + > ctx->frame_queue[current_frame_index + 1]->pts; > @@ -306,6 +316,8 @@ static int deint_vaapi_filter_frame(AVFilterLink *inlink, > AVFrame *input_frame) > break; > } > > + ctx->prev_pts = input_frame->pts; > + > return err; > > fail: > @@ -315,6 +327,25 @@ fail: > return err; > } > > +static int deint_vaapi_request_frame(AVFilterLink *link) > +{ > + AVFilterContext *avctx = link->src; > + DeintVAAPIContext *ctx = avctx->priv; > + int ret; > + > + if (ctx->eof) > + return AVERROR_EOF; > + > + ret = ff_request_frame(link->src->inputs[0]); > + if (ret == AVERROR_EOF) { > + ctx->eof = 1; > + deint_vaapi_filter_frame(link->src->inputs[0], NULL); > + } else if (ret < 0) > + return ret; > + > + return 0; > +} > + > static av_cold int deint_vaapi_init(AVFilterContext *avctx) > { > VAAPIVPPContext *vpp_ctx = avctx->priv; > @@ -376,9 +407,10 @@ static const AVFilterPad deint_vaapi_inputs[] = { > > static const AVFilterPad deint_vaapi_outputs[] = { > { > - .name = "default", > - .type = AVMEDIA_TYPE_VIDEO, > - .config_props = &deint_vaapi_config_output, > + .name = "default", > + .type = AVMEDIA_TYPE_VIDEO, > + .request_frame = &deint_vaapi_request_frame, > + .config_props = &deint_vaapi_config_output, > }, > { NULL } > }; > -- > 2.7.4 Ping. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".