mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
a05a44e205
* commit '7e350379f87e7f74420b4813170fe808e2313911':
lavfi: switch to AVFrame.
Conflicts:
doc/filters.texi
libavfilter/af_ashowinfo.c
libavfilter/audio.c
libavfilter/avfilter.c
libavfilter/avfilter.h
libavfilter/buffersink.c
libavfilter/buffersrc.c
libavfilter/buffersrc.h
libavfilter/f_select.c
libavfilter/f_setpts.c
libavfilter/fifo.c
libavfilter/split.c
libavfilter/src_movie.c
libavfilter/version.h
libavfilter/vf_aspect.c
libavfilter/vf_bbox.c
libavfilter/vf_blackframe.c
libavfilter/vf_delogo.c
libavfilter/vf_drawbox.c
libavfilter/vf_drawtext.c
libavfilter/vf_fade.c
libavfilter/vf_fieldorder.c
libavfilter/vf_fps.c
libavfilter/vf_frei0r.c
libavfilter/vf_gradfun.c
libavfilter/vf_hqdn3d.c
libavfilter/vf_lut.c
libavfilter/vf_overlay.c
libavfilter/vf_pad.c
libavfilter/vf_scale.c
libavfilter/vf_showinfo.c
libavfilter/vf_transpose.c
libavfilter/vf_vflip.c
libavfilter/vf_yadif.c
libavfilter/video.c
libavfilter/vsrc_testsrc.c
libavfilter/yadif.h
Following are notes about the merge authorship and various technical details.
Michael Niedermayer:
* Main merge operation, notably avfilter.c and video.c
* Switch to AVFrame:
- afade
- anullsrc
- apad
- aresample
- blackframe
- deshake
- idet
- il
- mandelbrot
- mptestsrc
- noise
- setfield
- smartblur
- tinterlace
* various merge changes and fixes in:
- ashowinfo
- blackdetect
- field
- fps
- select
- testsrc
- yadif
Nicolas George:
* Switch to AVFrame:
- make rawdec work with refcounted frames. Adapted from commit
759001c534
by Anton Khirnov.
Also, fix the use of || instead of | in a flags check.
- make buffer sink and src, audio and video work all together
Clément Bœsch:
* Switch to AVFrame:
- aevalsrc
- alphaextract
- blend
- cellauto
- colormatrix
- concat
- earwax
- ebur128
- edgedetect
- geq
- histeq
- histogram
- hue
- kerndeint
- life
- movie
- mp (with the help of Michael)
- overlay
- pad
- pan
- pp
- pp
- removelogo
- sendcmd
- showspectrum
- showwaves
- silencedetect
- stereo3d
- subtitles
- super2xsai
- swapuv
- thumbnail
- tile
Hendrik Leppkes:
* Switch to AVFrame:
- aconvert
- amerge
- asetnsamples
- atempo
- biquads
Matthieu Bouron:
* Switch to AVFrame
- alphamerge
- decimate
- volumedetect
Stefano Sabatini:
* Switch to AVFrame:
- astreamsync
- flite
- framestep
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Clément Bœsch <ubitux@gmail.com>
Signed-off-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: Matthieu Bouron <matthieu.bouron@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
Merged-by: Michael Niedermayer <michaelni@gmx.at>
145 lines
4.3 KiB
C
145 lines
4.3 KiB
C
/*
|
|
* 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.
|
|
*
|
|
* FFmpeg 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,
|
|
* 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.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* Search for black frames to detect scene transitions.
|
|
* Ported from MPlayer libmpcodecs/vf_blackframe.c.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <inttypes.h>
|
|
|
|
#include "libavutil/internal.h"
|
|
#include "avfilter.h"
|
|
#include "internal.h"
|
|
#include "formats.h"
|
|
#include "internal.h"
|
|
#include "video.h"
|
|
|
|
typedef struct {
|
|
unsigned int bamount; ///< black amount
|
|
unsigned int bthresh; ///< black threshold
|
|
unsigned int frame; ///< frame number
|
|
unsigned int nblack; ///< number of black pixels counted so far
|
|
unsigned int last_keyframe; ///< frame number of the last received key-frame
|
|
} BlackFrameContext;
|
|
|
|
static int query_formats(AVFilterContext *ctx)
|
|
{
|
|
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
|
|
};
|
|
|
|
ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
|
|
return 0;
|
|
}
|
|
|
|
static av_cold int init(AVFilterContext *ctx, const char *args)
|
|
{
|
|
BlackFrameContext *blackframe = ctx->priv;
|
|
|
|
blackframe->bamount = 98;
|
|
blackframe->bthresh = 32;
|
|
blackframe->nblack = 0;
|
|
blackframe->frame = 0;
|
|
blackframe->last_keyframe = 0;
|
|
|
|
if (args)
|
|
sscanf(args, "%u:%u", &blackframe->bamount, &blackframe->bthresh);
|
|
|
|
av_log(ctx, AV_LOG_VERBOSE, "bamount:%u bthresh:%u\n",
|
|
blackframe->bamount, blackframe->bthresh);
|
|
|
|
if (blackframe->bamount > 100 || blackframe->bthresh > 255) {
|
|
av_log(ctx, AV_LOG_ERROR, "Too big value for bamount (max is 100) or bthresh (max is 255)\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
BlackFrameContext *blackframe = ctx->priv;
|
|
int x, i;
|
|
int pblack = 0;
|
|
uint8_t *p = frame->data[0];
|
|
|
|
for (i = 0; i < frame->height; i++) {
|
|
for (x = 0; x < inlink->w; x++)
|
|
blackframe->nblack += p[x] < blackframe->bthresh;
|
|
p += frame->linesize[0];
|
|
}
|
|
|
|
if (frame->key_frame)
|
|
blackframe->last_keyframe = blackframe->frame;
|
|
|
|
pblack = blackframe->nblack * 100 / (inlink->w * inlink->h);
|
|
if (pblack >= blackframe->bamount)
|
|
av_log(ctx, AV_LOG_INFO, "frame:%u pblack:%u pts:%"PRId64" t:%f "
|
|
"type:%c last_keyframe:%d\n",
|
|
blackframe->frame, pblack, frame->pts,
|
|
frame->pts == AV_NOPTS_VALUE ? -1 : frame->pts * av_q2d(inlink->time_base),
|
|
av_get_picture_type_char(frame->pict_type), blackframe->last_keyframe);
|
|
|
|
blackframe->frame++;
|
|
blackframe->nblack = 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."),
|
|
|
|
.priv_size = sizeof(BlackFrameContext),
|
|
.init = init,
|
|
|
|
.query_formats = query_formats,
|
|
|
|
.inputs = avfilter_vf_blackframe_inputs,
|
|
|
|
.outputs = avfilter_vf_blackframe_outputs,
|
|
};
|