diff options
Diffstat (limited to 'libavfilter/vf_hflip.c')
-rw-r--r-- | libavfilter/vf_hflip.c | 141 |
1 files changed, 78 insertions, 63 deletions
diff --git a/libavfilter/vf_hflip.c b/libavfilter/vf_hflip.c index 1eb8d69..519a609 100644 --- a/libavfilter/vf_hflip.c +++ b/libavfilter/vf_hflip.c @@ -2,20 +2,20 @@ * Copyright (c) 2007 Benoit Fouet * Copyright (c) 2010 Stefano Sabatini * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -37,38 +37,25 @@ typedef struct FlipContext { int max_step[4]; ///< max pixel step for each plane, expressed as a number of bytes - int hsub, vsub; ///< chroma subsampling + int planewidth[4]; ///< width of each plane + int planeheight[4]; ///< height of each plane } FlipContext; static int query_formats(AVFilterContext *ctx) { - static const enum AVPixelFormat pix_fmts[] = { - AV_PIX_FMT_RGB48BE, AV_PIX_FMT_RGB48LE, - AV_PIX_FMT_BGR48BE, AV_PIX_FMT_BGR48LE, - AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA, - AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA, - AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, - AV_PIX_FMT_RGB565BE, AV_PIX_FMT_RGB565LE, - AV_PIX_FMT_RGB555BE, AV_PIX_FMT_RGB555LE, - AV_PIX_FMT_BGR565BE, AV_PIX_FMT_BGR565LE, - AV_PIX_FMT_BGR555BE, AV_PIX_FMT_BGR555LE, - AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_GRAY16LE, - AV_PIX_FMT_YUV420P16LE, AV_PIX_FMT_YUV420P16BE, - AV_PIX_FMT_YUV422P16LE, AV_PIX_FMT_YUV422P16BE, - AV_PIX_FMT_YUV444P16LE, AV_PIX_FMT_YUV444P16BE, - AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, - AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P, - AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P, - AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, - AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ440P, - AV_PIX_FMT_YUVA420P, - AV_PIX_FMT_RGB8, AV_PIX_FMT_BGR8, - AV_PIX_FMT_RGB4_BYTE, AV_PIX_FMT_BGR4_BYTE, - AV_PIX_FMT_PAL8, AV_PIX_FMT_GRAY8, - AV_PIX_FMT_NONE - }; - - ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); + AVFilterFormats *pix_fmts = NULL; + int fmt; + + for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) { + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt); + if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL || + desc->flags & AV_PIX_FMT_FLAG_BITSTREAM || + (desc->log2_chroma_w != desc->log2_chroma_h && + desc->comp[0].plane == desc->comp[1].plane))) + ff_add_format(&pix_fmts, fmt); + } + + ff_set_common_formats(ctx, pix_fmts); return 0; } @@ -76,41 +63,45 @@ static int config_props(AVFilterLink *inlink) { FlipContext *s = inlink->dst->priv; const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format); + const int hsub = pix_desc->log2_chroma_w; + const int vsub = pix_desc->log2_chroma_h; av_image_fill_max_pixsteps(s->max_step, NULL, pix_desc); - s->hsub = pix_desc->log2_chroma_w; - s->vsub = pix_desc->log2_chroma_h; + s->planewidth[0] = s->planewidth[3] = inlink->w; + s->planewidth[1] = s->planewidth[2] = FF_CEIL_RSHIFT(inlink->w, hsub); + s->planeheight[0] = s->planeheight[3] = inlink->h; + s->planeheight[1] = s->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, vsub); return 0; } -static int filter_frame(AVFilterLink *inlink, AVFrame *in) +typedef struct ThreadData { + AVFrame *in, *out; +} ThreadData; + +static int filter_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs) { - AVFilterContext *ctx = inlink->dst; - FlipContext *s = ctx->priv; - AVFilterLink *outlink = ctx->outputs[0]; - AVFrame *out; + FlipContext *s = ctx->priv; + ThreadData *td = arg; + AVFrame *in = td->in; + AVFrame *out = td->out; uint8_t *inrow, *outrow; - int i, j, plane, step, hsub, vsub; + int i, j, plane, step; - out = ff_get_video_buffer(outlink, outlink->w, outlink->h); - if (!out) { - av_frame_free(&in); - return AVERROR(ENOMEM); - } - av_frame_copy_props(out, in); + for (plane = 0; plane < 4 && in->data[plane] && in->linesize[plane]; plane++) { + const int width = s->planewidth[plane]; + const int height = s->planeheight[plane]; + const int start = (height * job ) / nb_jobs; + const int end = (height * (job+1)) / nb_jobs; - for (plane = 0; plane < 4 && in->data[plane]; plane++) { step = s->max_step[plane]; - hsub = (plane == 1 || plane == 2) ? s->hsub : 0; - vsub = (plane == 1 || plane == 2) ? s->vsub : 0; - outrow = out->data[plane]; - inrow = in ->data[plane] + ((inlink->w >> hsub) - 1) * step; - for (i = 0; i < in->height >> vsub; i++) { + outrow = out->data[plane] + start * out->linesize[plane]; + inrow = in ->data[plane] + start * in->linesize[plane] + (width - 1) * step; + for (i = start; i < end; i++) { switch (step) { case 1: - for (j = 0; j < (inlink->w >> hsub); j++) + for (j = 0; j < width; j++) outrow[j] = inrow[-j]; break; @@ -118,7 +109,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) { uint16_t *outrow16 = (uint16_t *)outrow; uint16_t * inrow16 = (uint16_t *) inrow; - for (j = 0; j < (inlink->w >> hsub); j++) + for (j = 0; j < width; j++) outrow16[j] = inrow16[-j]; } break; @@ -127,7 +118,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) { uint8_t *in = inrow; uint8_t *out = outrow; - for (j = 0; j < (inlink->w >> hsub); j++, out += 3, in -= 3) { + for (j = 0; j < width; j++, out += 3, in -= 3) { int32_t v = AV_RB24(in); AV_WB24(out, v); } @@ -138,13 +129,13 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) { uint32_t *outrow32 = (uint32_t *)outrow; uint32_t * inrow32 = (uint32_t *) inrow; - for (j = 0; j < (inlink->w >> hsub); j++) + for (j = 0; j < width; j++) outrow32[j] = inrow32[-j]; } break; default: - for (j = 0; j < (inlink->w >> hsub); j++) + for (j = 0; j < width; j++) memcpy(outrow + j*step, inrow - j*step, step); } @@ -153,6 +144,30 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) } } + return 0; +} + +static int filter_frame(AVFilterLink *inlink, AVFrame *in) +{ + AVFilterContext *ctx = inlink->dst; + AVFilterLink *outlink = ctx->outputs[0]; + ThreadData td; + AVFrame *out; + + out = ff_get_video_buffer(outlink, outlink->w, outlink->h); + if (!out) { + av_frame_free(&in); + return AVERROR(ENOMEM); + } + av_frame_copy_props(out, in); + + /* copy palette if required */ + if (av_pix_fmt_desc_get(inlink->format)->flags & AV_PIX_FMT_FLAG_PAL) + memcpy(out->data[1], in->data[1], AVPALETTE_SIZE); + + td.in = in, td.out = out; + ctx->internal->execute(ctx, filter_slice, &td, NULL, FFMIN(outlink->h, ctx->graph->nb_threads)); + av_frame_free(&in); return ff_filter_frame(outlink, out); } @@ -176,11 +191,11 @@ static const AVFilterPad avfilter_vf_hflip_outputs[] = { }; AVFilter ff_vf_hflip = { - .name = "hflip", - .description = NULL_IF_CONFIG_SMALL("Horizontally flip the input video."), - .priv_size = sizeof(FlipContext), + .name = "hflip", + .description = NULL_IF_CONFIG_SMALL("Horizontally flip the input video."), + .priv_size = sizeof(FlipContext), .query_formats = query_formats, - - .inputs = avfilter_vf_hflip_inputs, - .outputs = avfilter_vf_hflip_outputs, + .inputs = avfilter_vf_hflip_inputs, + .outputs = avfilter_vf_hflip_outputs, + .flags = AVFILTER_FLAG_SLICE_THREADS, }; |