virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00
Code Issues Releases Activity

avfilter/vf_showinfo: allow checksums calculation to be disabled

Browse Source 
Fixes #6987.
This commit is contained in:
Paul B Mahol 2018-12-04 21:39:32 +01:00
parent 5ecd4f24f0
commit 8be56ee211
2 changed files with 46 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
doc/filters.texi
View File

@ -15304,6 +15304,13 @@ Keep the same colorspace property (default).
Show a line containing various information for each input video frame.
The input video is not modified.
This filter supports the following options:
@table @option
@item checksum
Calculate checksums of each plane. By default enabled.
@end table
The shown line contains a sequence of key/value pairs of the form
@var{key}:@var{value}.

54
libavfilter/vf_showinfo.c
View File

@ -28,6 +28,7 @@
#include "libavutil/display.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/spherical.h"
#include "libavutil/stereo3d.h"
@ -38,6 +39,21 @@
#include "internal.h"
#include "video.h"
typedef struct ShowInfoContext {
const AVClass *class;
int calculate_checksums;
} ShowInfoContext;
#define OFFSET(x) offsetof(ShowInfoContext, x)
#define VF AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
static const AVOption showinfo_options[] = {
{ "checksum", "calculate checksums", OFFSET(calculate_checksums), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, VF },
{ NULL }
};
AVFILTER_DEFINE_CLASS(showinfo);
static void dump_spherical(AVFilterContext *ctx, AVFrame *frame, AVFrameSideData *sd)
{
AVSphericalMapping *spherical = (AVSphericalMapping *)sd->data;
@ -141,13 +157,14 @@ static void update_sample_stats(const uint8_t *src, int len, int64_t *sum, int64
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
{
AVFilterContext *ctx = inlink->dst;
ShowInfoContext *s = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
uint32_t plane_checksum[4] = {0}, checksum = 0;
int64_t sum[4] = {0}, sum2[4] = {0};
int32_t pixelcount[4] = {0};
int i, plane, vsub = desc->log2_chroma_h;
for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) {
for (plane = 0; plane < 4 && s->calculate_checksums && frame->data[plane] && frame->linesize[plane]; plane++) {
uint8_t *data = frame->data[plane];
int h = plane == 1 || plane == 2 ? AV_CEIL_RSHIFT(inlink->h, vsub) : inlink->h;
int linesize = av_image_get_linesize(frame->format, frame->width, plane);
@ -167,8 +184,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
av_log(ctx, AV_LOG_INFO,
"n:%4"PRId64" pts:%7s pts_time:%-7s pos:%9"PRId64" "
"fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c "
"checksum:%08"PRIX32" plane_checksum:[%08"PRIX32,
"fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c ",
inlink->frame_count_out,
av_ts2str(frame->pts), av_ts2timestr(frame->pts, &inlink->time_base), frame->pkt_pos,
desc->name,
@ -177,19 +193,25 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
!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]);
av_get_picture_type_char(frame->pict_type));
for (plane = 1; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++)
av_log(ctx, AV_LOG_INFO, " %08"PRIX32, plane_checksum[plane]);
av_log(ctx, AV_LOG_INFO, "] mean:[");
for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++)
av_log(ctx, AV_LOG_INFO, "%"PRId64" ", (sum[plane] + pixelcount[plane]/2) / pixelcount[plane]);
av_log(ctx, AV_LOG_INFO, "\b] stdev:[");
for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++)
av_log(ctx, AV_LOG_INFO, "%3.1f ",
sqrt((sum2[plane] - sum[plane]*(double)sum[plane]/pixelcount[plane])/pixelcount[plane]));
av_log(ctx, AV_LOG_INFO, "\b]\n");
if (s->calculate_checksums) {
av_log(ctx, AV_LOG_INFO,
"checksum:%08"PRIX32" plane_checksum:[%08"PRIX32,
checksum, plane_checksum[0]);
for (plane = 1; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++)
av_log(ctx, AV_LOG_INFO, " %08"PRIX32, plane_checksum[plane]);
av_log(ctx, AV_LOG_INFO, "] mean:[");
for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++)
av_log(ctx, AV_LOG_INFO, "%"PRId64" ", (sum[plane] + pixelcount[plane]/2) / pixelcount[plane]);
av_log(ctx, AV_LOG_INFO, "\b] stdev:[");
for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++)
av_log(ctx, AV_LOG_INFO, "%3.1f ",
sqrt((sum2[plane] - sum[plane]*(double)sum[plane]/pixelcount[plane])/pixelcount[plane]));
av_log(ctx, AV_LOG_INFO, "\b]");
}
av_log(ctx, AV_LOG_INFO, "\n");
for (i = 0; i < frame->nb_side_data; i++) {
AVFrameSideData *sd = frame->side_data[i];
@ -285,4 +307,6 @@ AVFilter ff_vf_showinfo = {
.description = NULL_IF_CONFIG_SMALL("Show textual information for each video frame."),
.inputs = avfilter_vf_showinfo_inputs,
.outputs = avfilter_vf_showinfo_outputs,
.priv_size = sizeof(ShowInfoContext),
.priv_class = &showinfo_class,
};