/* * Copyright (c) 2011 Stefano Sabatini * This file is part of Libav. * * Libav 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. * * Libav 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 Libav; 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 #include "libavutil/adler32.h" #include "libavutil/display.h" #include "libavutil/imgutils.h" #include "libavutil/internal.h" #include "libavutil/pixdesc.h" #include "libavutil/stereo3d.h" #include "avfilter.h" #include "internal.h" #include "video.h" typedef struct ShowInfoContext { unsigned int frame; } ShowInfoContext; 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 - "); switch (stereo->type) { case AV_STEREO3D_2D: av_log(ctx, AV_LOG_INFO, "2D"); break; case AV_STEREO3D_SIDEBYSIDE: av_log(ctx, AV_LOG_INFO, "side by side"); break; case AV_STEREO3D_TOPBOTTOM: av_log(ctx, AV_LOG_INFO, "top and bottom"); break; case AV_STEREO3D_FRAMESEQUENCE: av_log(ctx, AV_LOG_INFO, "frame alternate"); break; case AV_STEREO3D_CHECKERBOARD: av_log(ctx, AV_LOG_INFO, "checkerboard"); break; case AV_STEREO3D_LINES: av_log(ctx, AV_LOG_INFO, "interleaved lines"); break; case AV_STEREO3D_COLUMNS: av_log(ctx, AV_LOG_INFO, "interleaved columns"); break; case AV_STEREO3D_SIDEBYSIDE_QUINCUNX: av_log(ctx, AV_LOG_INFO, "side by side " "(quincunx subsampling)"); break; default: av_log(ctx, AV_LOG_WARNING, "unknown"); break; } if (stereo->flags & AV_STEREO3D_FLAG_INVERT) av_log(ctx, AV_LOG_INFO, " (inverted)"); } static int filter_frame(AVFilterLink *inlink, AVFrame *frame) { AVFilterContext *ctx = inlink->dst; ShowInfoContext *showinfo = ctx->priv; const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); uint32_t plane_checksum[4] = {0}, checksum = 0; int i, plane, vsub = desc->log2_chroma_h; for (plane = 0; frame->data[plane] && plane < 4; plane++) { uint8_t *data = frame->data[plane]; int h = plane == 1 || plane == 2 ? 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); data += frame->linesize[plane]; } } av_log(ctx, AV_LOG_INFO, "n:%d pts:%"PRId64" pts_time:%f " "fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c " "checksum:%"PRIu32" plane_checksum:[%"PRIu32" %"PRIu32" %"PRIu32" %"PRIu32"]\n", showinfo->frame, frame->pts, frame->pts * av_q2d(inlink->time_base), 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], plane_checksum[1], plane_checksum[2], plane_checksum[3]); 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_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"); } showinfo->frame++; 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, .get_video_buffer = ff_null_get_video_buffer, .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."), .priv_size = sizeof(ShowInfoContext), .inputs = avfilter_vf_showinfo_inputs, .outputs = avfilter_vf_showinfo_outputs, };