/*
- * Copyright (C) 2010 Stefano Sabatini
- * Copyright (C) 2006 Ivo van Poorten
- * Copyright (C) 2006 Julian Hall
- * Copyright (C) 2002-2003 Brian J. Murrell
+ * Copyright (c) 2010 Stefano Sabatini
+ * Copyright (c) 2006 Ivo van Poorten
+ * Copyright (c) 2006 Julian Hall
+ * Copyright (c) 2002-2003 Brian J. Murrell
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or modify
+ * Libav is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
- * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
+ * with Libav; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
* Ported from MPlayer libmpcodecs/vf_blackframe.c.
*/
+#include <stdio.h>
+#include <inttypes.h>
+
+#include "libavutil/internal.h"
#include "avfilter.h"
+#include "formats.h"
+#include "internal.h"
+#include "video.h"
typedef struct {
unsigned int bamount; ///< black amount
static int query_formats(AVFilterContext *ctx)
{
- static const enum PixelFormat pix_fmts[] = {
- PIX_FMT_YUV410P, PIX_FMT_YUV420P, PIX_FMT_GRAY8, PIX_FMT_NV12,
- PIX_FMT_NV21, PIX_FMT_YUV444P, PIX_FMT_YUV422P, PIX_FMT_YUV411P,
- PIX_FMT_NONE
+ static const enum AVPixelFormat pix_fmts[] = {
+ AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_GRAY8, AV_PIX_FMT_NV12,
+ AV_PIX_FMT_NV21, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV411P,
+ AV_PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
return 0;
}
-static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
+static av_cold int init(AVFilterContext *ctx, const char *args)
{
BlackFrameContext *blackframe = ctx->priv;
if (args)
sscanf(args, "%u:%u", &blackframe->bamount, &blackframe->bthresh);
- av_log(ctx, AV_LOG_INFO, "bamount:%u bthresh:%u\n",
+ av_log(ctx, AV_LOG_VERBOSE, "bamount:%u bthresh:%u\n",
blackframe->bamount, blackframe->bthresh);
if (blackframe->bamount > 100 || blackframe->bthresh > 255) {
return 0;
}
-static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
+static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *frame)
{
AVFilterContext *ctx = inlink->dst;
BlackFrameContext *blackframe = ctx->priv;
- AVFilterBufferRef *picref = inlink->cur_buf;
int x, i;
- uint8_t *p = picref->data[0] + y * picref->linesize[0];
+ int pblack = 0;
+ uint8_t *p = frame->data[0];
- for (i = 0; i < h; i++) {
+ for (i = 0; i < frame->video->h; i++) {
for (x = 0; x < inlink->w; x++)
blackframe->nblack += p[x] < blackframe->bthresh;
- p += picref->linesize[0];
+ p += frame->linesize[0];
}
- avfilter_draw_slice(ctx->outputs[0], y, h, slice_dir);
-}
-
-static void end_frame(AVFilterLink *inlink)
-{
- AVFilterContext *ctx = inlink->dst;
- BlackFrameContext *blackframe = ctx->priv;
- AVFilterBufferRef *picref = inlink->cur_buf;
- int pblack = 0;
-
pblack = blackframe->nblack * 100 / (inlink->w * inlink->h);
if (pblack >= blackframe->bamount)
- av_log(ctx, AV_LOG_INFO, "frame:%u pblack:%u pos:%"PRId64" pts:%f\n",
- blackframe->frame, pblack, picref->pos,
- picref->pts == AV_NOPTS_VALUE ? -1 : (double)picref->pts / AV_TIME_BASE);
+ av_log(ctx, AV_LOG_INFO, "frame:%u pblack:%u pos:%"PRId64" pts:%"PRId64" t:%f\n",
+ blackframe->frame, pblack, frame->pos, frame->pts,
+ frame->pts == AV_NOPTS_VALUE ? -1 : frame->pts * av_q2d(inlink->time_base));
blackframe->frame++;
blackframe->nblack = 0;
- avfilter_end_frame(inlink->dst->outputs[0]);
+ return ff_filter_frame(inlink->dst->outputs[0], frame);
}
+static const AVFilterPad avfilter_vf_blackframe_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .get_video_buffer = ff_null_get_video_buffer,
+ .filter_frame = filter_frame,
+ },
+ { NULL }
+};
+
+static const AVFilterPad avfilter_vf_blackframe_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO
+ },
+ { NULL }
+};
+
AVFilter avfilter_vf_blackframe = {
.name = "blackframe",
.description = NULL_IF_CONFIG_SMALL("Detect frames that are (almost) black."),
.query_formats = query_formats,
- .inputs = (AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .draw_slice = draw_slice,
- .get_video_buffer = avfilter_null_get_video_buffer,
- .start_frame = avfilter_null_start_frame,
- .end_frame = end_frame, },
- { .name = NULL}},
-
- .outputs = (AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO },
- { .name = NULL}},
+ .inputs = avfilter_vf_blackframe_inputs,
+
+ .outputs = avfilter_vf_blackframe_outputs,
};
projects / ffmpeg / blobdiff