[FFmpeg-devel] [PATCH 1/3] avcodec/nvenc: Fix b-frame parameter handling

Michael Niedermayer michaelni at gmx.at
Fri Jan 23 00:14:49 CET 2015


On Fri, Jan 16, 2015 at 01:02:38AM +0100, Timo Rothenpieler wrote:
> ---
>  libavcodec/nvenc.c | 20 ++++++++------------
>  1 file changed, 8 insertions(+), 12 deletions(-)
> 
> diff --git a/libavcodec/nvenc.c b/libavcodec/nvenc.c
> index 5cd7727..90856be 100644
> --- a/libavcodec/nvenc.c
> +++ b/libavcodec/nvenc.c
> @@ -155,7 +155,6 @@ typedef struct NvencContext
>      char *preset;
>      int cbr;
>      int twopass;
> -    int gobpattern;
>      int gpu;
>  } NvencContext;
>  
> @@ -582,6 +581,13 @@ static av_cold int nvenc_encode_init(AVCodecContext *avctx)
>      memcpy(&ctx->encode_config, &preset_config.presetCfg, sizeof(ctx->encode_config));
>      ctx->encode_config.version = NV_ENC_CONFIG_VER;
>  
> +    /* 0 is intra-only, 1 is I/P only, 2 is one B Frame, 3 two B frames, and so on. */
> +    ctx->encode_config.frameIntervalP = avctx->max_b_frames + 1;

how can the user choose between intra only and IP ?

i would have assumed that gop_size <= 1 would select intra only


[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Its not that you shouldnt use gotos but rather that you should write
readable code and code with gotos often but not always is less readable
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