mirror of https://github.com/FFmpeg/FFmpeg.git
Paul B Mahol
12 years ago
parent
d9bc251d39
commit
292902ea9f
7 changed files with 377 additions and 1 deletions
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/*
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* Copyright (c) 2013 Paul B Mahol |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/avassert.h" |
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#include "libavutil/avstring.h" |
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#include "libavutil/imgutils.h" |
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#include "libavutil/opt.h" |
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#include "libavutil/pixdesc.h" |
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#include "avfilter.h" |
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#include "internal.h" |
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#include "framesync.h" |
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typedef struct InputParam { |
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int depth[4]; |
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int nb_planes; |
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int planewidth[4]; |
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int planeheight[4]; |
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} InputParam; |
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typedef struct MergePlanesContext { |
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const AVClass *class; |
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int64_t mapping; |
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const enum AVPixelFormat out_fmt; |
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int nb_inputs; |
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int nb_planes; |
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int planewidth[4]; |
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int planeheight[4]; |
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int map[4][2]; |
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const AVPixFmtDescriptor *outdesc; |
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FFFrameSync fs; |
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FFFrameSyncIn fsin[3]; /* must be immediately after fs */ |
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} MergePlanesContext; |
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#define OFFSET(x) offsetof(MergePlanesContext, x) |
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
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static const AVOption mergeplanes_options[] = { |
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{ "mapping", "set input to output plane mapping", OFFSET(mapping), AV_OPT_TYPE_INT, {.i64=0}, 0, 0x33333333, FLAGS }, |
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{ "format", "set output pixel format", OFFSET(out_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64=AV_PIX_FMT_YUVA444P}, .flags=FLAGS }, |
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{ NULL } |
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}; |
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AVFILTER_DEFINE_CLASS(mergeplanes); |
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static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
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{ |
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MergePlanesContext *s = inlink->dst->priv; |
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return ff_framesync_filter_frame(&s->fs, inlink, in); |
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} |
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static av_cold int init(AVFilterContext *ctx) |
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{ |
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MergePlanesContext *s = ctx->priv; |
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int64_t m = s->mapping; |
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int i, ret; |
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s->outdesc = av_pix_fmt_desc_get(s->out_fmt); |
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if (!(s->outdesc->flags & AV_PIX_FMT_FLAG_PLANAR) || |
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s->outdesc->nb_components < 2) { |
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av_log(ctx, AV_LOG_ERROR, "Only planar formats with more than one component are supported.\n"); |
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return AVERROR(EINVAL); |
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} |
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s->nb_planes = av_pix_fmt_count_planes(s->out_fmt); |
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for (i = s->nb_planes - 1; i >= 0; i--) { |
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s->map[i][0] = m & 0xf; |
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m >>= 4; |
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s->map[i][1] = m & 0xf; |
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m >>= 4; |
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if (s->map[i][0] > 3 || s->map[i][1] > 3) { |
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av_log(ctx, AV_LOG_ERROR, "Mapping with out of range input and/or plane number.\n"); |
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return AVERROR(EINVAL); |
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} |
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s->nb_inputs = FFMAX(s->nb_inputs, s->map[i][1] + 1); |
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} |
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av_assert0(s->nb_inputs && s->nb_inputs <= 4); |
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for (i = 0; i < s->nb_inputs; i++) { |
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AVFilterPad pad = { 0 }; |
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pad.type = AVMEDIA_TYPE_VIDEO; |
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pad.name = av_asprintf("in%d", i); |
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if (!pad.name) |
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return AVERROR(ENOMEM); |
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pad.filter_frame = filter_frame; |
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if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0){ |
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av_freep(&pad.name); |
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return ret; |
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} |
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} |
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return 0; |
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} |
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static int query_formats(AVFilterContext *ctx) |
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{ |
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MergePlanesContext *s = ctx->priv; |
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AVFilterFormats *formats = NULL; |
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int i; |
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s->outdesc = av_pix_fmt_desc_get(s->out_fmt); |
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for (i = 0; i < AV_PIX_FMT_NB; i++) { |
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(i); |
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if (desc->comp[0].depth_minus1 == s->outdesc->comp[0].depth_minus1 && |
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av_pix_fmt_count_planes(i) == desc->nb_components) |
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ff_add_format(&formats, i); |
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} |
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for (i = 0; i < s->nb_inputs; i++) |
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ff_formats_ref(formats, &ctx->inputs[i]->out_formats); |
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formats = NULL; |
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ff_add_format(&formats, s->out_fmt); |
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ff_formats_ref(formats, &ctx->outputs[0]->in_formats); |
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return 0; |
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} |
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static int process_frame(FFFrameSync *fs) |
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{ |
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AVFilterContext *ctx = fs->parent; |
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AVFilterLink *outlink = ctx->outputs[0]; |
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MergePlanesContext *s = fs->opaque; |
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AVFrame *in[4] = { NULL }; |
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AVFrame *out; |
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int i, ret; |
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for (i = 0; i < s->nb_inputs; i++) { |
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if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0) |
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return ret; |
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} |
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
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if (!out) |
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return AVERROR(ENOMEM); |
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out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base); |
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for (i = 0; i < s->nb_planes; i++) { |
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const int input = s->map[i][1]; |
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const int plane = s->map[i][0]; |
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av_image_copy_plane(out->data[i], out->linesize[i], |
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in[input]->data[plane], in[input]->linesize[plane], |
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s->planewidth[i], s->planeheight[i]); |
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} |
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return ff_filter_frame(outlink, out); |
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} |
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static int config_output(AVFilterLink *outlink) |
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{ |
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AVFilterContext *ctx = outlink->src; |
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MergePlanesContext *s = ctx->priv; |
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InputParam inputsp[4]; |
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FFFrameSyncIn *in; |
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int i; |
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ff_framesync_init(&s->fs, ctx, s->nb_inputs); |
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in = s->fs.in; |
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s->fs.opaque = s; |
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s->fs.on_event = process_frame; |
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outlink->w = ctx->inputs[0]->w; |
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outlink->h = ctx->inputs[0]->h; |
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outlink->time_base = ctx->inputs[0]->time_base; |
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outlink->frame_rate = ctx->inputs[0]->frame_rate; |
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outlink->sample_aspect_ratio = ctx->inputs[0]->sample_aspect_ratio; |
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s->planewidth[1] = |
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s->planewidth[2] = FF_CEIL_RSHIFT(outlink->w, s->outdesc->log2_chroma_w); |
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s->planewidth[0] = |
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s->planewidth[3] = outlink->w; |
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s->planeheight[1] = |
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s->planeheight[2] = FF_CEIL_RSHIFT(outlink->h, s->outdesc->log2_chroma_h); |
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s->planeheight[0] = |
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s->planeheight[3] = outlink->h; |
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for (i = 0; i < s->nb_inputs; i++) { |
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InputParam *inputp = &inputsp[i]; |
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AVFilterLink *inlink = ctx->inputs[i]; |
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const AVPixFmtDescriptor *indesc = av_pix_fmt_desc_get(inlink->format); |
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int j; |
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if (outlink->sample_aspect_ratio.num != inlink->sample_aspect_ratio.num || |
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outlink->sample_aspect_ratio.den != inlink->sample_aspect_ratio.den) { |
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av_log(ctx, AV_LOG_ERROR, "input #%d link %s SAR %d:%d " |
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"does not match output link %s SAR %d:%d\n", |
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i, ctx->input_pads[i].name, |
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inlink->sample_aspect_ratio.num, |
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inlink->sample_aspect_ratio.den, |
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ctx->output_pads[0].name, |
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outlink->sample_aspect_ratio.num, |
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outlink->sample_aspect_ratio.den); |
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return AVERROR(EINVAL); |
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} |
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inputp->planewidth[1] = |
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inputp->planewidth[2] = FF_CEIL_RSHIFT(inlink->w, indesc->log2_chroma_w); |
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inputp->planewidth[0] = |
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inputp->planewidth[3] = inlink->w; |
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inputp->planeheight[1] = |
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inputp->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, indesc->log2_chroma_h); |
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inputp->planeheight[0] = |
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inputp->planeheight[3] = inlink->h; |
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inputp->nb_planes = av_pix_fmt_count_planes(inlink->format); |
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for (j = 0; j < inputp->nb_planes; j++) |
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inputp->depth[j] = indesc->comp[j].depth_minus1 + 1; |
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in[i].time_base = inlink->time_base; |
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in[i].sync = 1; |
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in[i].before = EXT_STOP; |
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in[i].after = EXT_STOP; |
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} |
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for (i = 0; i < s->nb_planes; i++) { |
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const int input = s->map[i][1]; |
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const int plane = s->map[i][0]; |
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InputParam *inputp = &inputsp[input]; |
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if (plane + 1 > inputp->nb_planes) { |
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av_log(ctx, AV_LOG_ERROR, "input %d does not have %d plane\n", |
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input, plane); |
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goto fail; |
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} |
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if (s->outdesc->comp[i].depth_minus1 + 1 != inputp->depth[plane]) { |
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av_log(ctx, AV_LOG_ERROR, "output plane %d depth %d does not " |
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"match input %d plane %d depth %d\n", |
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i, s->outdesc->comp[i].depth_minus1 + 1, |
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input, plane, inputp->depth[plane]); |
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goto fail; |
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} |
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if (s->planewidth[i] != inputp->planewidth[plane]) { |
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av_log(ctx, AV_LOG_ERROR, "output plane %d width %d does not " |
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"match input %d plane %d width %d\n", |
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i, s->planewidth[i], |
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input, plane, inputp->planewidth[plane]); |
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goto fail; |
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} |
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if (s->planeheight[i] != inputp->planeheight[plane]) { |
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av_log(ctx, AV_LOG_ERROR, "output plane %d height %d does not " |
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"match input %d plane %d height %d\n", |
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i, s->planeheight[i], |
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input, plane, inputp->planeheight[plane]); |
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goto fail; |
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} |
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} |
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return ff_framesync_configure(&s->fs); |
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fail: |
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return AVERROR(EINVAL); |
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} |
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static int request_frame(AVFilterLink *outlink) |
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{ |
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MergePlanesContext *s = outlink->src->priv; |
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return ff_framesync_request_frame(&s->fs, outlink); |
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} |
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static av_cold void uninit(AVFilterContext *ctx) |
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{ |
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MergePlanesContext *s = ctx->priv; |
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int i; |
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ff_framesync_uninit(&s->fs); |
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for (i = 0; i < ctx->nb_inputs; i++) |
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av_freep(&ctx->input_pads[i].name); |
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} |
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static const AVFilterPad mergeplanes_outputs[] = { |
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{ |
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.name = "default", |
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.type = AVMEDIA_TYPE_VIDEO, |
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.config_props = config_output, |
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.request_frame = request_frame, |
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}, |
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{ NULL } |
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}; |
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AVFilter avfilter_vf_mergeplanes = { |
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.name = "mergeplanes", |
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.description = NULL_IF_CONFIG_SMALL("Merge planes."), |
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.priv_size = sizeof(MergePlanesContext), |
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.priv_class = &mergeplanes_class, |
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.init = init, |
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.uninit = uninit, |
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.query_formats = query_formats, |
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.inputs = NULL, |
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.outputs = mergeplanes_outputs, |
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.flags = AVFILTER_FLAG_DYNAMIC_INPUTS, |
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}; |
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