1/* 2 * Copyright (c) 2011 Stefano Sabatini 3 * This file is part of FFmpeg. 4 * 5 * FFmpeg is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Lesser General Public 7 * License as published by the Free Software Foundation; either 8 * version 2.1 of the License, or (at your option) any later version. 9 * 10 * FFmpeg is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Lesser General Public License for more details. 14 * 15 * You should have received a copy of the GNU Lesser General Public 16 * License along with FFmpeg; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18 */ 19 20/** 21 * @file 22 * filter for showing textual video frame information 23 */ 24 25#include <inttypes.h> 26 27#include "libavutil/adler32.h" 28#include "libavutil/display.h" 29#include "libavutil/imgutils.h" 30#include "libavutil/internal.h" 31#include "libavutil/pixdesc.h" 32#include "libavutil/stereo3d.h" 33#include "libavutil/timestamp.h" 34 35#include "avfilter.h" 36#include "internal.h" 37#include "video.h" 38 39static void dump_stereo3d(AVFilterContext *ctx, AVFrameSideData *sd) 40{ 41 AVStereo3D *stereo; 42 43 av_log(ctx, AV_LOG_INFO, "stereoscopic information: "); 44 if (sd->size < sizeof(*stereo)) { 45 av_log(ctx, AV_LOG_INFO, "invalid data"); 46 return; 47 } 48 49 stereo = (AVStereo3D *)sd->data; 50 51 av_log(ctx, AV_LOG_INFO, "type - "); 52 switch (stereo->type) { 53 case AV_STEREO3D_2D: av_log(ctx, AV_LOG_INFO, "2D"); break; 54 case AV_STEREO3D_SIDEBYSIDE: av_log(ctx, AV_LOG_INFO, "side by side"); break; 55 case AV_STEREO3D_TOPBOTTOM: av_log(ctx, AV_LOG_INFO, "top and bottom"); break; 56 case AV_STEREO3D_FRAMESEQUENCE: av_log(ctx, AV_LOG_INFO, "frame alternate"); break; 57 case AV_STEREO3D_CHECKERBOARD: av_log(ctx, AV_LOG_INFO, "checkerboard"); break; 58 case AV_STEREO3D_LINES: av_log(ctx, AV_LOG_INFO, "interleaved lines"); break; 59 case AV_STEREO3D_COLUMNS: av_log(ctx, AV_LOG_INFO, "interleaved columns"); break; 60 case AV_STEREO3D_SIDEBYSIDE_QUINCUNX: av_log(ctx, AV_LOG_INFO, "side by side " 61 "(quincunx subsampling)"); break; 62 default: av_log(ctx, AV_LOG_WARNING, "unknown"); break; 63 } 64 65 if (stereo->flags & AV_STEREO3D_FLAG_INVERT) 66 av_log(ctx, AV_LOG_INFO, " (inverted)"); 67} 68 69static void update_sample_stats(const uint8_t *src, int len, int64_t *sum, int64_t *sum2) 70{ 71 int i; 72 73 for (i = 0; i < len; i++) { 74 *sum += src[i]; 75 *sum2 += src[i] * src[i]; 76 } 77} 78 79static int filter_frame(AVFilterLink *inlink, AVFrame *frame) 80{ 81 AVFilterContext *ctx = inlink->dst; 82 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); 83 uint32_t plane_checksum[4] = {0}, checksum = 0; 84 int64_t sum[4] = {0}, sum2[4] = {0}; 85 int32_t pixelcount[4] = {0}; 86 int i, plane, vsub = desc->log2_chroma_h; 87 88 for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) { 89 int64_t linesize = av_image_get_linesize(frame->format, frame->width, plane); 90 uint8_t *data = frame->data[plane]; 91 int h = plane == 1 || plane == 2 ? FF_CEIL_RSHIFT(inlink->h, vsub) : inlink->h; 92 93 if (linesize < 0) 94 return linesize; 95 96 for (i = 0; i < h; i++) { 97 plane_checksum[plane] = av_adler32_update(plane_checksum[plane], data, linesize); 98 checksum = av_adler32_update(checksum, data, linesize); 99 100 update_sample_stats(data, linesize, sum+plane, sum2+plane); 101 pixelcount[plane] += linesize; 102 data += frame->linesize[plane]; 103 } 104 } 105 106 av_log(ctx, AV_LOG_INFO, 107 "n:%"PRId64" pts:%s pts_time:%s pos:%"PRId64" " 108 "fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c " 109 "checksum:%08"PRIX32" plane_checksum:[%08"PRIX32, 110 inlink->frame_count, 111 av_ts2str(frame->pts), av_ts2timestr(frame->pts, &inlink->time_base), av_frame_get_pkt_pos(frame), 112 desc->name, 113 frame->sample_aspect_ratio.num, frame->sample_aspect_ratio.den, 114 frame->width, frame->height, 115 !frame->interlaced_frame ? 'P' : /* Progressive */ 116 frame->top_field_first ? 'T' : 'B', /* Top / Bottom */ 117 frame->key_frame, 118 av_get_picture_type_char(frame->pict_type), 119 checksum, plane_checksum[0]); 120 121 for (plane = 1; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) 122 av_log(ctx, AV_LOG_INFO, " %08"PRIX32, plane_checksum[plane]); 123 av_log(ctx, AV_LOG_INFO, "] mean:["); 124 for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) 125 av_log(ctx, AV_LOG_INFO, "%"PRId64" ", (sum[plane] + pixelcount[plane]/2) / pixelcount[plane]); 126 av_log(ctx, AV_LOG_INFO, "\b] stdev:["); 127 for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++) 128 av_log(ctx, AV_LOG_INFO, "%3.1f ", 129 sqrt((sum2[plane] - sum[plane]*(double)sum[plane]/pixelcount[plane])/pixelcount[plane])); 130 av_log(ctx, AV_LOG_INFO, "\b]\n"); 131 132 for (i = 0; i < frame->nb_side_data; i++) { 133 AVFrameSideData *sd = frame->side_data[i]; 134 135 av_log(ctx, AV_LOG_INFO, " side data - "); 136 switch (sd->type) { 137 case AV_FRAME_DATA_PANSCAN: 138 av_log(ctx, AV_LOG_INFO, "pan/scan"); 139 break; 140 case AV_FRAME_DATA_A53_CC: 141 av_log(ctx, AV_LOG_INFO, "A/53 closed captions (%d bytes)", sd->size); 142 break; 143 case AV_FRAME_DATA_STEREO3D: 144 dump_stereo3d(ctx, sd); 145 break; 146 case AV_FRAME_DATA_DISPLAYMATRIX: 147 av_log(ctx, AV_LOG_INFO, "displaymatrix: rotation of %.2f degrees", 148 av_display_rotation_get((int32_t *)sd->data)); 149 break; 150 default: 151 av_log(ctx, AV_LOG_WARNING, "unknown side data type %d (%d bytes)", 152 sd->type, sd->size); 153 break; 154 } 155 156 av_log(ctx, AV_LOG_INFO, "\n"); 157 } 158 159 return ff_filter_frame(inlink->dst->outputs[0], frame); 160} 161 162static const AVFilterPad avfilter_vf_showinfo_inputs[] = { 163 { 164 .name = "default", 165 .type = AVMEDIA_TYPE_VIDEO, 166 .filter_frame = filter_frame, 167 }, 168 { NULL } 169}; 170 171static const AVFilterPad avfilter_vf_showinfo_outputs[] = { 172 { 173 .name = "default", 174 .type = AVMEDIA_TYPE_VIDEO 175 }, 176 { NULL } 177}; 178 179AVFilter ff_vf_showinfo = { 180 .name = "showinfo", 181 .description = NULL_IF_CONFIG_SMALL("Show textual information for each video frame."), 182 .inputs = avfilter_vf_showinfo_inputs, 183 .outputs = avfilter_vf_showinfo_outputs, 184}; 185