FFmpeg/libavfilter/vf_showinfo.c
Michael Niedermayer c581cb4e4f Merge remote-tracking branch 'qatar/master'
* qatar/master:
  Fix even more missing includes after the common.h removal
  build: Factor out rangecoder dependencies to CONFIG_RANGECODER
  build: Factor out error resilience dependencies to CONFIG_ERROR_RESILIENCE
  x86: avcodec: Consistently name all init files
  Add more missing includes after removing the implicit common.h
  Add some more missing includes after removing the implicit common.h
  Don't include common.h from avutil.h
  rtmp: Automatically compute the hash for SWFVerification

Conflicts:
	configure
	doc/APIchanges
	doc/examples/decoding_encoding.c
	libavcodec/Makefile
	libavcodec/assdec.c
	libavcodec/audio_frame_queue.c
	libavcodec/avpacket.c
	libavcodec/dv_profile.c
	libavcodec/dwt.c
	libavcodec/libtheoraenc.c
	libavcodec/rawdec.c
	libavcodec/rv40dsp.c
	libavcodec/tiff.c
	libavcodec/tiffenc.c
	libavcodec/v210dec.h
	libavcodec/vc1dsp.c
	libavcodec/x86/Makefile
	libavfilter/asrc_anullsrc.c
	libavfilter/avfilter.c
	libavfilter/buffer.c
	libavfilter/formats.c
	libavfilter/vf_ass.c
	libavfilter/vf_drawtext.c
	libavfilter/vf_fade.c
	libavfilter/vf_select.c
	libavfilter/video.c
	libavfilter/vsrc_testsrc.c
	libavformat/version.h
	libavutil/audioconvert.c
	libavutil/error.h
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-08-16 16:20:30 +02:00

107 lines
4.1 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"
typedef struct {
unsigned int frame;
} ShowInfoContext;
static av_cold int init(AVFilterContext *ctx, const char *args)
{
ShowInfoContext *showinfo = ctx->priv;
showinfo->frame = 0;
return 0;
}
static int end_frame(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
ShowInfoContext *showinfo = ctx->priv;
AVFilterBufferRef *picref = inlink->cur_buf;
uint32_t plane_checksum[4] = {0}, checksum = 0;
int i, plane, vsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_h;
for (plane = 0; picref->data[plane] && plane < 4; plane++) {
size_t linesize = av_image_get_linesize(picref->format, picref->video->w, plane);
uint8_t *data = picref->data[plane];
int h = plane == 1 || plane == 2 ? inlink->h >> vsub : inlink->h;
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 += picref->linesize[plane];
}
}
av_log(ctx, AV_LOG_INFO,
"n:%d 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",
showinfo->frame,
av_ts2str(picref->pts), av_ts2timestr(picref->pts, &inlink->time_base), picref->pos,
av_pix_fmt_descriptors[picref->format].name,
picref->video->sample_aspect_ratio.num, picref->video->sample_aspect_ratio.den,
picref->video->w, picref->video->h,
!picref->video->interlaced ? 'P' : /* Progressive */
picref->video->top_field_first ? 'T' : 'B', /* Top / Bottom */
picref->video->key_frame,
av_get_picture_type_char(picref->video->pict_type),
checksum, plane_checksum[0]);
for (plane = 1; picref->data[plane] && plane < 4; plane++)
av_log(ctx, AV_LOG_INFO, " %08X", plane_checksum[plane]);
av_log(ctx, AV_LOG_INFO, "]\n");
showinfo->frame++;
return ff_end_frame(inlink->dst->outputs[0]);
}
AVFilter avfilter_vf_showinfo = {
.name = "showinfo",
.description = NULL_IF_CONFIG_SMALL("Show textual information for each video frame."),
.priv_size = sizeof(ShowInfoContext),
.init = init,
.inputs = (const AVFilterPad[]) {{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.get_video_buffer = ff_null_get_video_buffer,
.start_frame = ff_null_start_frame,
.end_frame = end_frame,
.min_perms = AV_PERM_READ, },
{ .name = NULL}},
.outputs = (const AVFilterPad[]) {{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO },
{ .name = NULL}},
};