mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-26 19:01:44 +02:00
104 lines
3.6 KiB
C
104 lines
3.6 KiB
C
/*
|
|
* Copyright (c) 2011 Stefano Sabatini
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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 FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* filter for showing textual video frame information
|
|
*/
|
|
|
|
#include "libavutil/adler32.h"
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/internal.h"
|
|
#include "libavutil/pixdesc.h"
|
|
#include "libavutil/timestamp.h"
|
|
#include "avfilter.h"
|
|
#include "internal.h"
|
|
#include "video.h"
|
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
|
uint32_t plane_checksum[4] = {0}, checksum = 0;
|
|
int i, plane, vsub = desc->log2_chroma_h;
|
|
|
|
for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) {
|
|
int64_t linesize = av_image_get_linesize(frame->format, frame->width, plane);
|
|
uint8_t *data = frame->data[plane];
|
|
int h = plane == 1 || plane == 2 ? FF_CEIL_RSHIFT(inlink->h, vsub) : inlink->h;
|
|
|
|
if (linesize < 0)
|
|
return linesize;
|
|
|
|
for (i = 0; i < h; i++) {
|
|
plane_checksum[plane] = av_adler32_update(plane_checksum[plane], data, linesize);
|
|
checksum = av_adler32_update(checksum, data, linesize);
|
|
data += frame->linesize[plane];
|
|
}
|
|
}
|
|
|
|
av_log(ctx, AV_LOG_INFO,
|
|
"n:%"PRId64" pts:%s pts_time:%s pos:%"PRId64" "
|
|
"fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c "
|
|
"checksum:%08X plane_checksum:[%08X",
|
|
inlink->frame_count,
|
|
av_ts2str(frame->pts), av_ts2timestr(frame->pts, &inlink->time_base), av_frame_get_pkt_pos(frame),
|
|
desc->name,
|
|
frame->sample_aspect_ratio.num, frame->sample_aspect_ratio.den,
|
|
frame->width, frame->height,
|
|
!frame->interlaced_frame ? 'P' : /* Progressive */
|
|
frame->top_field_first ? 'T' : 'B', /* Top / Bottom */
|
|
frame->key_frame,
|
|
av_get_picture_type_char(frame->pict_type),
|
|
checksum, plane_checksum[0]);
|
|
|
|
for (plane = 1; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++)
|
|
av_log(ctx, AV_LOG_INFO, " %08X", plane_checksum[plane]);
|
|
av_log(ctx, AV_LOG_INFO, "]\n");
|
|
|
|
return ff_filter_frame(inlink->dst->outputs[0], frame);
|
|
}
|
|
|
|
static const AVFilterPad avfilter_vf_showinfo_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_showinfo_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFilter avfilter_vf_showinfo = {
|
|
.name = "showinfo",
|
|
.description = NULL_IF_CONFIG_SMALL("Show textual information for each video frame."),
|
|
|
|
.inputs = avfilter_vf_showinfo_inputs,
|
|
|
|
.outputs = avfilter_vf_showinfo_outputs,
|
|
};
|