diff options
Diffstat (limited to 'libavfilter/vf_overlay.c')
| -rw-r--r-- | libavfilter/vf_overlay.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/libavfilter/vf_overlay.c b/libavfilter/vf_overlay.c index c592dca9ed..b249ad7ee4 100644 --- a/libavfilter/vf_overlay.c +++ b/libavfilter/vf_overlay.c @@ -125,6 +125,7 @@ typedef struct OverlayContext { int main_pix_step[4]; ///< steps per pixel for each plane of the main output int overlay_pix_step[4]; ///< steps per pixel for each plane of the overlay int hsub, vsub; ///< chroma subsampling values + const AVPixFmtDescriptor *main_desc; ///< format descriptor for main input double var_values[VAR_VARS_NB]; char *x_expr, *y_expr; @@ -215,7 +216,9 @@ static int query_formats(AVFilterContext *ctx) /* overlay formats contains alpha, for avoiding conversion with alpha information loss */ static const enum AVPixelFormat main_pix_fmts_yuv420[] = { - AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_NONE + AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVA420P, + AV_PIX_FMT_NV12, AV_PIX_FMT_NV21, + AV_PIX_FMT_NONE }; static const enum AVPixelFormat overlay_pix_fmts_yuv420[] = { AV_PIX_FMT_YUVA420P, AV_PIX_FMT_NONE @@ -470,6 +473,7 @@ static av_always_inline void blend_plane(AVFilterContext *ctx, int x, int y, int main_has_alpha) { + OverlayContext *ol = ctx->priv; int src_wp = AV_CEIL_RSHIFT(src_w, hsub); int src_hp = AV_CEIL_RSHIFT(src_h, vsub); int dst_wp = AV_CEIL_RSHIFT(dst_w, hsub); @@ -479,14 +483,20 @@ static av_always_inline void blend_plane(AVFilterContext *ctx, uint8_t *s, *sp, *d, *dp, *a, *ap; int jmax, j, k, kmax; + int dst_plane = ol->main_desc->comp[i].plane; + int dst_offset = ol->main_desc->comp[i].offset; + int dst_step = ol->main_desc->comp[i].step; + j = FFMAX(-yp, 0); sp = src->data[i] + j * src->linesize[i]; - dp = dst->data[i] + (yp+j) * dst->linesize[i]; + dp = dst->data[dst_plane] + + (yp+j) * dst->linesize[dst_plane] + + dst_offset; ap = src->data[3] + (j<<vsub) * src->linesize[3]; for (jmax = FFMIN(-yp + dst_hp, src_hp); j < jmax; j++) { k = FFMAX(-xp, 0); - d = dp + xp+k; + d = dp + (xp+k) * dst_step; s = sp + k; a = ap + (k<<hsub); @@ -525,10 +535,10 @@ static av_always_inline void blend_plane(AVFilterContext *ctx, } *d = FAST_DIV255(*d * (255 - alpha) + *s * alpha); s++; - d++; + d += dst_step; a += 1 << hsub; } - dp += dst->linesize[i]; + dp += dst->linesize[dst_plane]; sp += src->linesize[i]; ap += (1 << vsub) * src->linesize[3]; } @@ -626,6 +636,8 @@ static int config_input_main(AVFilterLink *inlink) s->hsub = pix_desc->log2_chroma_w; s->vsub = pix_desc->log2_chroma_h; + s->main_desc = pix_desc; + s->main_is_packed_rgb = ff_fill_rgba_map(s->main_rgba_map, inlink->format) >= 0; s->main_has_alpha = ff_fmt_is_in(inlink->format, alpha_pix_fmts); |