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FFmpeg/libavfilter/vf_showinfo.c

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  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/opt.h"

  32. #include "libavutil/pixdesc.h"

  33. #include "libavutil/spherical.h"

  34. #include "libavutil/stereo3d.h"

  35. #include "libavutil/timestamp.h"

  36. #include "libavutil/timecode.h"

  37. #include "libavutil/mastering_display_metadata.h"

  38. 

  39. #include "avfilter.h"

  40. #include "internal.h"

  41. #include "video.h"

  42. 

  43. typedef struct ShowInfoContext {

  44.     const AVClass *class;

  45.     int calculate_checksums;

  46. } ShowInfoContext;

  47. 

  48. #define OFFSET(x) offsetof(ShowInfoContext, x)

  49. #define VF AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

  50. 

  51. static const AVOption showinfo_options[] = {

  52.     { "checksum", "calculate checksums", OFFSET(calculate_checksums), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, VF },

  53.     { NULL }

  54. };

  55. 

  56. AVFILTER_DEFINE_CLASS(showinfo);

  57. 

  58. static void dump_spherical(AVFilterContext *ctx, AVFrame *frame, AVFrameSideData *sd)

  59. {

  60.     AVSphericalMapping *spherical = (AVSphericalMapping *)sd->data;

  61.     double yaw, pitch, roll;

  62. 

  63.     av_log(ctx, AV_LOG_INFO, "spherical information: ");

  64.     if (sd->size < sizeof(*spherical)) {

  65.         av_log(ctx, AV_LOG_ERROR, "invalid data");

  66.         return;

  67.     }

  68. 

  69.     if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR)

  70.         av_log(ctx, AV_LOG_INFO, "equirectangular ");

  71.     else if (spherical->projection == AV_SPHERICAL_CUBEMAP)

  72.         av_log(ctx, AV_LOG_INFO, "cubemap ");

  73.     else if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR_TILE)

  74.         av_log(ctx, AV_LOG_INFO, "tiled equirectangular ");

  75.     else {

  76.         av_log(ctx, AV_LOG_WARNING, "unknown");

  77.         return;

  78.     }

  79. 

  80.     yaw = ((double)spherical->yaw) / (1 << 16);

  81.     pitch = ((double)spherical->pitch) / (1 << 16);

  82.     roll = ((double)spherical->roll) / (1 << 16);

  83.     av_log(ctx, AV_LOG_INFO, "(%f/%f/%f) ", yaw, pitch, roll);

  84. 

  85.     if (spherical->projection == AV_SPHERICAL_EQUIRECTANGULAR_TILE) {

  86.         size_t l, t, r, b;

  87.         av_spherical_tile_bounds(spherical, frame->width, frame->height,

  88.                                  &l, &t, &r, &b);

  89.         av_log(ctx, AV_LOG_INFO,

  90.                "[%"SIZE_SPECIFIER", %"SIZE_SPECIFIER", %"SIZE_SPECIFIER", %"SIZE_SPECIFIER"] ",

  91.                l, t, r, b);

  92.     } else if (spherical->projection == AV_SPHERICAL_CUBEMAP) {

  93.         av_log(ctx, AV_LOG_INFO, "[pad %"PRIu32"] ", spherical->padding);

  94.     }

  95. }

  96. 

  97. static void dump_stereo3d(AVFilterContext *ctx, AVFrameSideData *sd)

  98. {

  99.     AVStereo3D *stereo;

  100. 

  101.     av_log(ctx, AV_LOG_INFO, "stereoscopic information: ");

  102.     if (sd->size < sizeof(*stereo)) {

  103.         av_log(ctx, AV_LOG_ERROR, "invalid data");

  104.         return;

  105.     }

  106. 

  107.     stereo = (AVStereo3D *)sd->data;

  108. 

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

  110. 

  111.     if (stereo->flags & AV_STEREO3D_FLAG_INVERT)

  112.         av_log(ctx, AV_LOG_INFO, " (inverted)");

  113. }

  114. 

  115. static void dump_roi(AVFilterContext *ctx, AVFrameSideData *sd)

  116. {

  117.     int nb_rois;

  118.     const AVRegionOfInterest *roi;

  119.     uint32_t roi_size;

  120. 

  121.     roi = (const AVRegionOfInterest *)sd->data;

  122.     roi_size = roi->self_size;

  123.     if (!roi_size || sd->size % roi_size != 0) {

  124.         av_log(ctx, AV_LOG_ERROR, "Invalid AVRegionOfInterest.self_size.");

  125.         return;

  126.     }

  127.     nb_rois = sd->size / roi_size;

  128. 

  129.     av_log(ctx, AV_LOG_INFO, "Regions Of Interest(RoI) information: ");

  130.     for (int i = 0; i < nb_rois; i++) {

  131.         roi = (const AVRegionOfInterest *)(sd->data + roi_size * i);

  132.         av_log(ctx, AV_LOG_INFO, "index: %d, region: (%d, %d)/(%d, %d), qp offset: %d/%d.\n",

  133.                i, roi->left, roi->top, roi->right, roi->bottom, roi->qoffset.num, roi->qoffset.den);

  134.     }

  135. }

  136. 

  137. static void dump_mastering_display(AVFilterContext *ctx, AVFrameSideData *sd)

  138. {

  139.     AVMasteringDisplayMetadata *mastering_display;

  140. 

  141.     av_log(ctx, AV_LOG_INFO, "mastering display: ");

  142.     if (sd->size < sizeof(*mastering_display)) {

  143.         av_log(ctx, AV_LOG_ERROR, "invalid data");

  144.         return;

  145.     }

  146. 

  147.     mastering_display = (AVMasteringDisplayMetadata *)sd->data;

  148. 

  149.     av_log(ctx, AV_LOG_INFO, "has_primaries:%d has_luminance:%d "

  150.            "r(%5.4f,%5.4f) g(%5.4f,%5.4f) b(%5.4f %5.4f) wp(%5.4f, %5.4f) "

  151.            "min_luminance=%f, max_luminance=%f",

  152.            mastering_display->has_primaries, mastering_display->has_luminance,

  153.            av_q2d(mastering_display->display_primaries[0][0]),

  154.            av_q2d(mastering_display->display_primaries[0][1]),

  155.            av_q2d(mastering_display->display_primaries[1][0]),

  156.            av_q2d(mastering_display->display_primaries[1][1]),

  157.            av_q2d(mastering_display->display_primaries[2][0]),

  158.            av_q2d(mastering_display->display_primaries[2][1]),

  159.            av_q2d(mastering_display->white_point[0]), av_q2d(mastering_display->white_point[1]),

  160.            av_q2d(mastering_display->min_luminance), av_q2d(mastering_display->max_luminance));

  161. }

  162. 

  163. static void dump_content_light_metadata(AVFilterContext *ctx, AVFrameSideData *sd)

  164. {

  165.     AVContentLightMetadata* metadata = (AVContentLightMetadata*)sd->data;

  166. 

  167.     av_log(ctx, AV_LOG_INFO, "Content Light Level information: "

  168.            "MaxCLL=%d, MaxFALL=%d",

  169.            metadata->MaxCLL, metadata->MaxFALL);

  170. }

  171. 

  172. static void dump_color_property(AVFilterContext *ctx, AVFrame *frame)

  173. {

  174.     const char *color_range_str     = av_color_range_name(frame->color_range);

  175.     const char *colorspace_str      = av_color_space_name(frame->colorspace);

  176.     const char *color_primaries_str = av_color_primaries_name(frame->color_primaries);

  177.     const char *color_trc_str       = av_color_transfer_name(frame->color_trc);

  178. 

  179.     if (!color_range_str || frame->color_range == AVCOL_RANGE_UNSPECIFIED) {

  180.         av_log(ctx, AV_LOG_INFO, "color_range:unknown");

  181.     } else {

  182.         av_log(ctx, AV_LOG_INFO, "color_range:%s", color_range_str);

  183.     }

  184. 

  185.     if (!colorspace_str || frame->colorspace == AVCOL_SPC_UNSPECIFIED) {

  186.         av_log(ctx, AV_LOG_INFO, " color_space:unknown");

  187.     } else {

  188.         av_log(ctx, AV_LOG_INFO, " color_space:%s", colorspace_str);

  189.     }

  190. 

  191.     if (!color_primaries_str || frame->color_primaries == AVCOL_PRI_UNSPECIFIED) {

  192.         av_log(ctx, AV_LOG_INFO, " color_primaries:unknown");

  193.     } else {

  194.         av_log(ctx, AV_LOG_INFO, " color_primaries:%s", color_primaries_str);

  195.     }

  196. 

  197.     if (!color_trc_str || frame->color_trc == AVCOL_TRC_UNSPECIFIED) {

  198.         av_log(ctx, AV_LOG_INFO, " color_trc:unknown");

  199.     } else {

  200.         av_log(ctx, AV_LOG_INFO, " color_trc:%s", color_trc_str);

  201.     }

  202.     av_log(ctx, AV_LOG_INFO, "\n");

  203. }

  204. 

  205. static void update_sample_stats(const uint8_t *src, int len, int64_t *sum, int64_t *sum2)

  206. {

  207.     int i;

  208. 

  209.     for (i = 0; i < len; i++) {

  210.         *sum += src[i];

  211.         *sum2 += src[i] * src[i];

  212.     }

  213. }

  214. 

  215. static int filter_frame(AVFilterLink *inlink, AVFrame *frame)

  216. {

  217.     AVFilterContext *ctx = inlink->dst;

  218.     ShowInfoContext *s = ctx->priv;

  219.     const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);

  220.     uint32_t plane_checksum[4] = {0}, checksum = 0;

  221.     int64_t sum[4] = {0}, sum2[4] = {0};

  222.     int32_t pixelcount[4] = {0};

  223.     int i, plane, vsub = desc->log2_chroma_h;

  224. 

  225.     for (plane = 0; plane < 4 && s->calculate_checksums && frame->data[plane] && frame->linesize[plane]; plane++) {

  226.         uint8_t *data = frame->data[plane];

  227.         int h = plane == 1 || plane == 2 ? AV_CEIL_RSHIFT(inlink->h, vsub) : inlink->h;

  228.         int linesize = av_image_get_linesize(frame->format, frame->width, plane);

  229. 

  230.         if (linesize < 0)

  231.             return linesize;

  232. 

  233.         for (i = 0; i < h; i++) {

  234.             plane_checksum[plane] = av_adler32_update(plane_checksum[plane], data, linesize);

  235.             checksum = av_adler32_update(checksum, data, linesize);

  236. 

  237.             update_sample_stats(data, linesize, sum+plane, sum2+plane);

  238.             pixelcount[plane] += linesize;

  239.             data += frame->linesize[plane];

  240.         }

  241.     }

  242. 

  243.     av_log(ctx, AV_LOG_INFO,

  244.            "n:%4"PRId64" pts:%7s pts_time:%-7s pos:%9"PRId64" "

  245.            "fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c ",

  246.            inlink->frame_count_out,

  247.            av_ts2str(frame->pts), av_ts2timestr(frame->pts, &inlink->time_base), frame->pkt_pos,

  248.            desc->name,

  249.            frame->sample_aspect_ratio.num, frame->sample_aspect_ratio.den,

  250.            frame->width, frame->height,

  251.            !frame->interlaced_frame ? 'P' :         /* Progressive  */

  252.            frame->top_field_first   ? 'T' : 'B',    /* Top / Bottom */

  253.            frame->key_frame,

  254.            av_get_picture_type_char(frame->pict_type));

  255. 

  256.     if (s->calculate_checksums) {

  257.         av_log(ctx, AV_LOG_INFO,

  258.                "checksum:%08"PRIX32" plane_checksum:[%08"PRIX32,

  259.                checksum, plane_checksum[0]);

  260. 

  261.         for (plane = 1; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++)

  262.             av_log(ctx, AV_LOG_INFO, " %08"PRIX32, plane_checksum[plane]);

  263.         av_log(ctx, AV_LOG_INFO, "] mean:[");

  264.         for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++)

  265.             av_log(ctx, AV_LOG_INFO, "%"PRId64" ", (sum[plane] + pixelcount[plane]/2) / pixelcount[plane]);

  266.         av_log(ctx, AV_LOG_INFO, "\b] stdev:[");

  267.         for (plane = 0; plane < 4 && frame->data[plane] && frame->linesize[plane]; plane++)

  268.             av_log(ctx, AV_LOG_INFO, "%3.1f ",

  269.                    sqrt((sum2[plane] - sum[plane]*(double)sum[plane]/pixelcount[plane])/pixelcount[plane]));

  270.         av_log(ctx, AV_LOG_INFO, "\b]");

  271.     }

  272.     av_log(ctx, AV_LOG_INFO, "\n");

  273. 

  274.     for (i = 0; i < frame->nb_side_data; i++) {

  275.         AVFrameSideData *sd = frame->side_data[i];

  276. 

  277.         av_log(ctx, AV_LOG_INFO, "  side data - ");

  278.         switch (sd->type) {

  279.         case AV_FRAME_DATA_PANSCAN:

  280.             av_log(ctx, AV_LOG_INFO, "pan/scan");

  281.             break;

  282.         case AV_FRAME_DATA_A53_CC:

  283.             av_log(ctx, AV_LOG_INFO, "A/53 closed captions (%d bytes)", sd->size);

  284.             break;

  285.         case AV_FRAME_DATA_SPHERICAL:

  286.             dump_spherical(ctx, frame, sd);

  287.             break;

  288.         case AV_FRAME_DATA_STEREO3D:

  289.             dump_stereo3d(ctx, sd);

  290.             break;

  291.         case AV_FRAME_DATA_S12M_TIMECODE: {

  292.             uint32_t *tc = (uint32_t*)sd->data;

  293.             for (int j = 1; j <= tc[0]; j++) {

  294.                 char tcbuf[AV_TIMECODE_STR_SIZE];

  295.                 av_timecode_make_smpte_tc_string(tcbuf, tc[j], 0);

  296.                 av_log(ctx, AV_LOG_INFO, "timecode - %s%s", tcbuf, j != tc[0] ? ", " : "");

  297.             }

  298.             break;

  299.         }

  300.         case AV_FRAME_DATA_DISPLAYMATRIX:

  301.             av_log(ctx, AV_LOG_INFO, "displaymatrix: rotation of %.2f degrees",

  302.                    av_display_rotation_get((int32_t *)sd->data));

  303.             break;

  304.         case AV_FRAME_DATA_AFD:

  305.             av_log(ctx, AV_LOG_INFO, "afd: value of %"PRIu8, sd->data[0]);

  306.             break;

  307.         case AV_FRAME_DATA_REGIONS_OF_INTEREST:

  308.             dump_roi(ctx, sd);

  309.             break;

  310.         case AV_FRAME_DATA_MASTERING_DISPLAY_METADATA:

  311.             dump_mastering_display(ctx, sd);

  312.             break;

  313.         case AV_FRAME_DATA_CONTENT_LIGHT_LEVEL:

  314.             dump_content_light_metadata(ctx, sd);

  315.             break;

  316.         case AV_FRAME_DATA_GOP_TIMECODE: {

  317.             char tcbuf[AV_TIMECODE_STR_SIZE];

  318.             av_timecode_make_mpeg_tc_string(tcbuf, *(int64_t *)(sd->data));

  319.             av_log(ctx, AV_LOG_INFO, "GOP timecode - %s", tcbuf);

  320.             break;

  321.         }

  322.         default:

  323.             av_log(ctx, AV_LOG_WARNING, "unknown side data type %d (%d bytes)",

  324.                    sd->type, sd->size);

  325.             break;

  326.         }

  327. 

  328.         av_log(ctx, AV_LOG_INFO, "\n");

  329.     }

  330. 

  331.     dump_color_property(ctx, frame);

  332. 

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

  334. }

  335. 

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

  337. {

  338. 

  339.     av_log(ctx, AV_LOG_INFO, "config %s time_base: %d/%d, frame_rate: %d/%d\n",

  340.            is_out ? "out" : "in",

  341.            link->time_base.num, link->time_base.den,

  342.            link->frame_rate.num, link->frame_rate.den);

  343. 

  344.     return 0;

  345. }

  346. 

  347. static int config_props_in(AVFilterLink *link)

  348. {

  349.     AVFilterContext *ctx = link->dst;

  350.     return config_props(ctx, link, 0);

  351. }

  352. 

  353. static int config_props_out(AVFilterLink *link)

  354. {

  355.     AVFilterContext *ctx = link->src;

  356.     return config_props(ctx, link, 1);

  357. }

  358. 

  359. static const AVFilterPad avfilter_vf_showinfo_inputs[] = {

  360.     {

  361.         .name             = "default",

  362.         .type             = AVMEDIA_TYPE_VIDEO,

  363.         .filter_frame     = filter_frame,

  364.         .config_props     = config_props_in,

  365.     },

  366.     { NULL }

  367. };

  368. 

  369. static const AVFilterPad avfilter_vf_showinfo_outputs[] = {

  370.     {

  371.         .name = "default",

  372.         .type = AVMEDIA_TYPE_VIDEO,

  373.         .config_props  = config_props_out,

  374.     },

  375.     { NULL }

  376. };

  377. 

  378. AVFilter ff_vf_showinfo = {

  379.     .name        = "showinfo",

  380.     .description = NULL_IF_CONFIG_SMALL("Show textual information for each video frame."),

  381.     .inputs      = avfilter_vf_showinfo_inputs,

  382.     .outputs     = avfilter_vf_showinfo_outputs,

  383.     .priv_size   = sizeof(ShowInfoContext),

  384.     .priv_class  = &showinfo_class,

  385. };