[FFmpeg-devel] [PATCH 1/2] avdevice/xcbgrab: move some initialization code from pixfmt_from_pixmap_format to create_stream

Marton Balint cus at passwd.hu
Fri Jan 24 02:35:56 EET 2020



On Wed, 1 Jan 2020, Marton Balint wrote:

> Signed-off-by: Marton Balint <cus at passwd.hu>
> ---
> libavdevice/xcbgrab.c | 24 +++++++++++++-----------
> 1 file changed, 13 insertions(+), 11 deletions(-)

Applied the series.

Regards,
Marton

>
> diff --git a/libavdevice/xcbgrab.c b/libavdevice/xcbgrab.c
> index 113cce71a5..06b486a536 100644
> --- a/libavdevice/xcbgrab.c
> +++ b/libavdevice/xcbgrab.c
> @@ -487,7 +487,7 @@ static xcb_screen_t *get_screen(const xcb_setup_t *setup, int screen_num)
> }
> 
> static int pixfmt_from_pixmap_format(AVFormatContext *s, int depth,
> -                                     int *pix_fmt)
> +                                     int *pix_fmt, int *bpp)
> {
>     XCBGrabContext *c        = s->priv_data;
>     const xcb_setup_t *setup = xcb_get_setup(c->conn);
> @@ -525,14 +525,7 @@ static int pixfmt_from_pixmap_format(AVFormatContext *s, int depth,
>         }
>
>         if (*pix_fmt) {
> -            c->bpp        = fmt->bits_per_pixel;
> -            c->frame_size = c->width * c->height * fmt->bits_per_pixel / 8;
> -#if CONFIG_LIBXCB_SHM
> -            c->shm_pool = av_buffer_pool_init2(c->frame_size + AV_INPUT_BUFFER_PADDING_SIZE,
> -                                               c->conn, allocate_shm_buffer, NULL);
> -            if (!c->shm_pool)
> -                return AVERROR(ENOMEM);
> -#endif
> +            *bpp        = fmt->bits_per_pixel;
>             return 0;
>         }
> 
> @@ -592,9 +585,18 @@ static int create_stream(AVFormatContext *s)
>     st->codecpar->width      = c->width;
>     st->codecpar->height     = c->height;
> 
> -    ret = pixfmt_from_pixmap_format(s, geo->depth, &st->codecpar->format);
> -
> +    ret = pixfmt_from_pixmap_format(s, geo->depth, &st->codecpar->format, &c->bpp);
>     free(geo);
> +    if (ret < 0)
> +        return ret;
> +
> +    c->frame_size = c->width * c->height * c->bpp / 8;
> +#if CONFIG_LIBXCB_SHM
> +    c->shm_pool = av_buffer_pool_init2(c->frame_size + AV_INPUT_BUFFER_PADDING_SIZE,
> +                                           c->conn, allocate_shm_buffer, NULL);
> +    if (!c->shm_pool)
> +        return AVERROR(ENOMEM);
> +#endif
>
>     return ret;
> }
> -- 
> 2.16.4
>
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