libavfilter/vf_showinfo.c - third_party/ffmpeg - Git at Google

 /*
  * 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 <inttypes.h>

 #include "libavutil/adler32.h"
 #include "libavutil/display.h"
 #include "libavutil/imgutils.h"
 #include "libavutil/internal.h"
 #include "libavutil/pixdesc.h"
 #include "libavutil/spherical.h"
 #include "libavutil/stereo3d.h"
 #include "libavutil/timestamp.h"

 #include "avfilter.h"
 #include "internal.h"
 #include "video.h"

 static void dump_spherical(AVFilterContext *ctx, AVFrame *frame, AVFrameSideData *sd)
 {
     AVSphericalMapping *spherical = (AVSphericalMapping *)sd->data;
     double yaw, pitch, roll;

     av_log(ctx, AV_LOG_INFO, "spherical information: ");
     if (sd->size < sizeof(*spherical)) {
         av_log(ctx, AV_LOG_INFO, "invalid data");
         return;
     }

     if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR)
         av_log(ctx, AV_LOG_INFO, "equirectangular ");
     else if (spherical->projection == AV_SPHERICAL_CUBEMAP)
         av_log(ctx, AV_LOG_INFO, "cubemap ");
     else if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR_TILE)
         av_log(ctx, AV_LOG_INFO, "tiled equirectangular ");
     else {
         av_log(ctx, AV_LOG_WARNING, "unknown");
         return;
     }

     yaw = ((double)spherical->yaw) / (1 << 16);
     pitch = ((double)spherical->pitch) / (1 << 16);
     roll = ((double)spherical->roll) / (1 << 16);
     av_log(ctx, AV_LOG_INFO, "(%f/%f/%f) ", yaw, pitch, roll);

     if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR_TILE) {
         size_t l, t, r, b;
         av_spherical_tile_bounds(spherical, frame->width, frame->height,
                                  &l, &t, &r, &b);
         av_log(ctx, AV_LOG_INFO,
                "[%"SIZE_SPECIFIER", %"SIZE_SPECIFIER", %"SIZE_SPECIFIER", %"SIZE_SPECIFIER"] ",
                l, t, r, b);
     } else if (spherical->projection == AV_SPHERICAL_CUBEMAP) {
         av_log(ctx, AV_LOG_INFO, "[pad %"PRIu32"] ", spherical->padding);
     }
 }

 static void dump_stereo3d(AVFilterContext *ctx, AVFrameSideData *sd)
 {
     AVStereo3D *stereo;

     av_log(ctx, AV_LOG_INFO, "stereoscopic information: ");
     if (sd->size < sizeof(*stereo)) {
         av_log(ctx, AV_LOG_INFO, "invalid data");
         return;
     }

     stereo = (AVStereo3D *)sd->data;

     av_log(ctx, AV_LOG_INFO, "type - %s", av_stereo3d_type_name(stereo->type));

     if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
         av_log(ctx, AV_LOG_INFO, " (inverted)");
 }

 static void update_sample_stats(const uint8_t *src, int len, int64_t *sum, int64_t *sum2)
 {
     int i;

     for (i = 0; i < len; i++) {
         *sum += src[i];
         *sum2 += src[i] * src[i];
     }
 }

 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;
     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++) {
         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);

         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);

             update_sample_stats(data, linesize, sum+plane, sum2+plane);
             pixelcount[plane] += linesize;
             data += frame->linesize[plane];
         }
     }

     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,
            inlink->frame_count_out,
            av_ts2str(frame->pts), av_ts2timestr(frame->pts, &inlink->time_base), frame->pkt_pos,
            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, " %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");

     for (i = 0; i < frame->nb_side_data; i++) {
         AVFrameSideData *sd = frame->side_data[i];

         av_log(ctx, AV_LOG_INFO, "  side data - ");
         switch (sd->type) {
         case AV_FRAME_DATA_PANSCAN:
             av_log(ctx, AV_LOG_INFO, "pan/scan");
             break;
         case AV_FRAME_DATA_A53_CC:
             av_log(ctx, AV_LOG_INFO, "A/53 closed captions (%d bytes)", sd->size);
             break;
         case AV_FRAME_DATA_SPHERICAL:
             dump_spherical(ctx, frame, sd);
             break;
         case AV_FRAME_DATA_STEREO3D:
             dump_stereo3d(ctx, sd);
             break;
         case AV_FRAME_DATA_DISPLAYMATRIX:
             av_log(ctx, AV_LOG_INFO, "displaymatrix: rotation of %.2f degrees",
                    av_display_rotation_get((int32_t *)sd->data));
             break;
         case AV_FRAME_DATA_AFD:
             av_log(ctx, AV_LOG_INFO, "afd: value of %"PRIu8, sd->data[0]);
             break;
         default:
             av_log(ctx, AV_LOG_WARNING, "unknown side data type %d (%d bytes)",
                    sd->type, sd->size);
             break;
         }

         av_log(ctx, AV_LOG_INFO, "\n");
     }

     return ff_filter_frame(inlink->dst->outputs[0], frame);
 }

 static int config_props(AVFilterContext *ctx, AVFilterLink *link, int is_out)
 {

     av_log(ctx, AV_LOG_INFO, "config %s time_base: %d/%d, frame_rate: %d/%d\n",
            is_out ? "out" : "in",
            link->time_base.num, link->time_base.den,
            link->frame_rate.num, link->frame_rate.den);

     return 0;
 }

 static int config_props_in(AVFilterLink *link)
 {
     AVFilterContext *ctx = link->dst;
     return config_props(ctx, link, 0);
 }

 static int config_props_out(AVFilterLink *link)
 {
     AVFilterContext *ctx = link->src;
     return config_props(ctx, link, 1);
 }

 static const AVFilterPad avfilter_vf_showinfo_inputs[] = {
     {
         .name             = "default",
         .type             = AVMEDIA_TYPE_VIDEO,
         .filter_frame     = filter_frame,
         .config_props     = config_props_in,
     },
     { NULL }
 };

 static const AVFilterPad avfilter_vf_showinfo_outputs[] = {
     {
         .name = "default",
         .type = AVMEDIA_TYPE_VIDEO,
         .config_props  = config_props_out,
     },
     { NULL }
 };

 AVFilter ff_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,
 };
	/*
	* 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 <inttypes.h>

	#include "libavutil/adler32.h"
	#include "libavutil/display.h"
	#include "libavutil/imgutils.h"
	#include "libavutil/internal.h"
	#include "libavutil/pixdesc.h"
	#include "libavutil/spherical.h"
	#include "libavutil/stereo3d.h"
	#include "libavutil/timestamp.h"

	#include "avfilter.h"
	#include "internal.h"
	#include "video.h"

	static void dump_spherical(AVFilterContext ctx, AVFrame frame, AVFrameSideData *sd)
	{
	AVSphericalMapping spherical = (AVSphericalMapping )sd->data;
	double yaw, pitch, roll;

	av_log(ctx, AV_LOG_INFO, "spherical information: ");
	if (sd->size < sizeof(*spherical)) {
	av_log(ctx, AV_LOG_INFO, "invalid data");
	return;
	}

	if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR)
	av_log(ctx, AV_LOG_INFO, "equirectangular ");
	else if (spherical->projection == AV_SPHERICAL_CUBEMAP)
	av_log(ctx, AV_LOG_INFO, "cubemap ");
	else if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR_TILE)
	av_log(ctx, AV_LOG_INFO, "tiled equirectangular ");
	else {
	av_log(ctx, AV_LOG_WARNING, "unknown");
	return;
	}

	yaw = ((double)spherical->yaw) / (1 << 16);
	pitch = ((double)spherical->pitch) / (1 << 16);
	roll = ((double)spherical->roll) / (1 << 16);
	av_log(ctx, AV_LOG_INFO, "(%f/%f/%f) ", yaw, pitch, roll);

	if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR_TILE) {
	size_t l, t, r, b;
	av_spherical_tile_bounds(spherical, frame->width, frame->height,
	&l, &t, &r, &b);
	av_log(ctx, AV_LOG_INFO,
	"[%"SIZE_SPECIFIER", %"SIZE_SPECIFIER", %"SIZE_SPECIFIER", %"SIZE_SPECIFIER"] ",
	l, t, r, b);
	} else if (spherical->projection == AV_SPHERICAL_CUBEMAP) {
	av_log(ctx, AV_LOG_INFO, "[pad %"PRIu32"] ", spherical->padding);
	}
	}

	static void dump_stereo3d(AVFilterContext ctx, AVFrameSideData sd)
	{
	AVStereo3D *stereo;

	av_log(ctx, AV_LOG_INFO, "stereoscopic information: ");
	if (sd->size < sizeof(*stereo)) {
	av_log(ctx, AV_LOG_INFO, "invalid data");
	return;
	}

	stereo = (AVStereo3D *)sd->data;

	av_log(ctx, AV_LOG_INFO, "type - %s", av_stereo3d_type_name(stereo->type));

	if (stereo->flags & AV_STEREO3D_FLAG_INVERT)
	av_log(ctx, AV_LOG_INFO, " (inverted)");
	}

	static void update_sample_stats(const uint8_t src, int len, int64_t sum, int64_t *sum2)
	{
	int i;

	for (i = 0; i < len; i++) {
	*sum += src[i];
	sum2 += src[i] src[i];
	}
	}

	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;
	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++) {
	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);

	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);

	update_sample_stats(data, linesize, sum+plane, sum2+plane);
	pixelcount[plane] += linesize;
	data += frame->linesize[plane];
	}
	}

	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,
	inlink->frame_count_out,
	av_ts2str(frame->pts), av_ts2timestr(frame->pts, &inlink->time_base), frame->pkt_pos,
	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, " %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");

	for (i = 0; i < frame->nb_side_data; i++) {
	AVFrameSideData *sd = frame->side_data[i];

	av_log(ctx, AV_LOG_INFO, " side data - ");
	switch (sd->type) {
	case AV_FRAME_DATA_PANSCAN:
	av_log(ctx, AV_LOG_INFO, "pan/scan");
	break;
	case AV_FRAME_DATA_A53_CC:
	av_log(ctx, AV_LOG_INFO, "A/53 closed captions (%d bytes)", sd->size);
	break;
	case AV_FRAME_DATA_SPHERICAL:
	dump_spherical(ctx, frame, sd);
	break;
	case AV_FRAME_DATA_STEREO3D:
	dump_stereo3d(ctx, sd);
	break;
	case AV_FRAME_DATA_DISPLAYMATRIX:
	av_log(ctx, AV_LOG_INFO, "displaymatrix: rotation of %.2f degrees",
	av_display_rotation_get((int32_t *)sd->data));
	break;
	case AV_FRAME_DATA_AFD:
	av_log(ctx, AV_LOG_INFO, "afd: value of %"PRIu8, sd->data[0]);
	break;
	default:
	av_log(ctx, AV_LOG_WARNING, "unknown side data type %d (%d bytes)",
	sd->type, sd->size);
	break;
	}

	av_log(ctx, AV_LOG_INFO, "\n");
	}

	return ff_filter_frame(inlink->dst->outputs[0], frame);
	}

	static int config_props(AVFilterContext ctx, AVFilterLink link, int is_out)
	{

	av_log(ctx, AV_LOG_INFO, "config %s time_base: %d/%d, frame_rate: %d/%d\n",
	is_out ? "out" : "in",
	link->time_base.num, link->time_base.den,
	link->frame_rate.num, link->frame_rate.den);

	return 0;
	}

	static int config_props_in(AVFilterLink *link)
	{
	AVFilterContext *ctx = link->dst;
	return config_props(ctx, link, 0);
	}

	static int config_props_out(AVFilterLink *link)
	{
	AVFilterContext *ctx = link->src;
	return config_props(ctx, link, 1);
	}

	static const AVFilterPad avfilter_vf_showinfo_inputs[] = {
	{
	.name = "default",
	.type = AVMEDIA_TYPE_VIDEO,
	.filter_frame = filter_frame,
	.config_props = config_props_in,
	},
	{ NULL }
	};

	static const AVFilterPad avfilter_vf_showinfo_outputs[] = {
	{
	.name = "default",
	.type = AVMEDIA_TYPE_VIDEO,
	.config_props = config_props_out,
	},
	{ NULL }
	};

	AVFilter ff_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,
	};