diff options
Diffstat (limited to 'libavfilter/vf_blackframe.c')
| -rw-r--r-- | libavfilter/vf_blackframe.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/libavfilter/vf_blackframe.c b/libavfilter/vf_blackframe.c index bf0b18bea3..dc3344489a 100644 --- a/libavfilter/vf_blackframe.c +++ b/libavfilter/vf_blackframe.c @@ -4,20 +4,20 @@ * Copyright (c) 2006 Julian Hall * Copyright (c) 2002-2003 Brian J. Murrell * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or modify + * 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. * - * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along - * with Libav; if not, write to the Free Software Foundation, Inc., + * with FFmpeg; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ @@ -28,6 +28,7 @@ */ #include "avfilter.h" +#include "internal.h" #include "formats.h" #include "internal.h" #include "video.h" @@ -37,6 +38,7 @@ typedef struct { 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) @@ -59,6 +61,7 @@ static av_cold int init(AVFilterContext *ctx, const char *args) blackframe->bthresh = 32; blackframe->nblack = 0; blackframe->frame = 0; + blackframe->last_keyframe = 0; if (args) sscanf(args, "%u:%u", &blackframe->bamount, &blackframe->bthresh); @@ -98,11 +101,16 @@ static int end_frame(AVFilterLink *inlink) AVFilterBufferRef *picref = inlink->cur_buf; int pblack = 0; + if (picref->video->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 pos:%"PRId64" pts:%"PRId64" t:%f\n", + av_log(ctx, AV_LOG_INFO, "frame:%u pblack:%u pos:%"PRId64" pts:%"PRId64" t:%f " + "type:%c last_keyframe:%d\n", blackframe->frame, pblack, picref->pos, picref->pts, - picref->pts == AV_NOPTS_VALUE ? -1 : picref->pts * av_q2d(inlink->time_base)); + picref->pts == AV_NOPTS_VALUE ? -1 : picref->pts * av_q2d(inlink->time_base), + av_get_picture_type_char(picref->video->pict_type), blackframe->last_keyframe); blackframe->frame++; blackframe->nblack = 0; @@ -122,11 +130,11 @@ AVFilter avfilter_vf_blackframe = { .type = AVMEDIA_TYPE_VIDEO, .draw_slice = draw_slice, .get_video_buffer = ff_null_get_video_buffer, - .start_frame = ff_null_start_frame, + .start_frame = ff_null_start_frame_keep_ref, .end_frame = end_frame, }, { .name = NULL}}, - .outputs = (const AVFilterPad[]) {{ .name = "default", - .type = AVMEDIA_TYPE_VIDEO }, - { .name = NULL}}, + .outputs = (const AVFilterPad[]) {{ .name = "default", + .type = AVMEDIA_TYPE_VIDEO }, + { .name = NULL}}, }; |