diff options
| -rw-r--r-- | Changelog | 1 | ||||
| -rw-r--r-- | doc/filters.texi | 59 | ||||
| -rw-r--r-- | libavfilter/Makefile | 1 | ||||
| -rw-r--r-- | libavfilter/allfilters.c | 1 | ||||
| -rw-r--r-- | libavfilter/avfilter.h | 2 | ||||
| -rw-r--r-- | libavfilter/vf_showinfo.c | 98 |
6 files changed, 161 insertions, 1 deletions
@@ -43,6 +43,7 @@ easier to use. The changes are: - XMV demuxer - Windows Media Image decoder - LATM muxer +- showinfo filter version 0.7: diff --git a/doc/filters.texi b/doc/filters.texi index a8076b2bf5..d8d9062bb9 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -1210,6 +1210,65 @@ settb=2*intb settb=AVTB @end example +@section showinfo + +Show a line containing various information for each input video frame. +The input video is not modified. + +The shown line contains a sequence of key/value pairs of the form +@var{key}:@var{value}. + +A description of each shown parameter follows: + +@table @option +@item n +sequential number of the input frame, starting from 0 + +@item pts +Presentation TimeStamp of the input frame, expressed as a number of +time base units. The time base unit depends on the filter input pad. + +@item pts_time +Presentation TimeStamp of the input frame, expressed as a number of +seconds + +@item pos +position of the frame in the input stream, -1 if this information in +unavailable and/or meanigless (for example in case of synthetic video) + +@item fmt +pixel format name + +@item sar +sample aspect ratio of the input frame, expressed in the form +@var{num}/@var{den} + +@item s +size of the input frame, expressed in the form +@var{width}x@var{height} + +@item i +interlaced mode ("P" for "progressive", "T" for top field first, "B" +for bottom field first) + +@item iskey +1 if the frame is a key frame, 0 otherwise + +@item type +picture type of the input frame ("I" for an I-frame, "P" for a +P-frame, "B" for a B-frame, "?" for unknown type). +Check also the documentation of the @code{AVPictureType} enum and of +the @code{av_get_picture_type_char} function defined in +@file{libavutil/avutil.h}. + +@item checksum +Adler-32 checksum of all the planes of the input frame + +@item plane_checksum +Adler-32 checksum of each plane of the input frame, expressed in the form +"[@var{c0} @var{c1} @var{c2} @var{c3}]" +@end table + @section slicify Pass the images of input video on to next video filter as multiple diff --git a/libavfilter/Makefile b/libavfilter/Makefile index 1a6fd9b68f..162ec94292 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -44,6 +44,7 @@ OBJS-$(CONFIG_SETDAR_FILTER) += vf_aspect.o OBJS-$(CONFIG_SETPTS_FILTER) += vf_setpts.o OBJS-$(CONFIG_SETSAR_FILTER) += vf_aspect.o OBJS-$(CONFIG_SETTB_FILTER) += vf_settb.o +OBJS-$(CONFIG_SHOWINFO_FILTER) += vf_showinfo.o OBJS-$(CONFIG_SLICIFY_FILTER) += vf_slicify.o OBJS-$(CONFIG_TRANSPOSE_FILTER) += vf_transpose.o OBJS-$(CONFIG_UNSHARP_FILTER) += vf_unsharp.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index e29b4f97bd..e1b9333155 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -65,6 +65,7 @@ void avfilter_register_all(void) REGISTER_FILTER (SETPTS, setpts, vf); REGISTER_FILTER (SETSAR, setsar, vf); REGISTER_FILTER (SETTB, settb, vf); + REGISTER_FILTER (SHOWINFO, showinfo, vf); REGISTER_FILTER (SLICIFY, slicify, vf); REGISTER_FILTER (TRANSPOSE, transpose, vf); REGISTER_FILTER (UNSHARP, unsharp, vf); diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h index f8295e77c5..01af7b8e36 100644 --- a/libavfilter/avfilter.h +++ b/libavfilter/avfilter.h @@ -29,7 +29,7 @@ #include "libavutil/rational.h" #define LIBAVFILTER_VERSION_MAJOR 2 -#define LIBAVFILTER_VERSION_MINOR 4 +#define LIBAVFILTER_VERSION_MINOR 5 #define LIBAVFILTER_VERSION_MICRO 0 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ diff --git a/libavfilter/vf_showinfo.c b/libavfilter/vf_showinfo.c new file mode 100644 index 0000000000..aa2a7f16f9 --- /dev/null +++ b/libavfilter/vf_showinfo.c @@ -0,0 +1,98 @@ +/* + * 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 "libavutil/adler32.h" +#include "libavutil/imgutils.h" +#include "libavutil/pixdesc.h" +#include "avfilter.h" + +typedef struct { + unsigned int frame; +} ShowInfoContext; + +static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque) +{ + ShowInfoContext *showinfo = ctx->priv; + showinfo->frame = 0; + return 0; +} + +static void end_frame(AVFilterLink *inlink) +{ + AVFilterContext *ctx = inlink->dst; + ShowInfoContext *showinfo = ctx->priv; + AVFilterBufferRef *picref = inlink->cur_buf; + uint32_t plane_checksum[4] = {0}, checksum = 0; + int i, plane, vsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_h; + + for (plane = 0; picref->data[plane] && plane < 4; plane++) { + size_t linesize = av_image_get_linesize(picref->format, picref->video->w, plane); + uint8_t *data = picref->data[plane]; + int h = plane == 1 || plane == 2 ? inlink->h >> vsub : inlink->h; + + 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 += picref->linesize[plane]; + } + } + + av_log(ctx, AV_LOG_INFO, + "n:%d pts:%"PRId64" pts_time:%f pos:%"PRId64" " + "fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c " + "checksum:%u plane_checksum:[%u %u %u %u]\n", + showinfo->frame, + picref->pts, picref->pts * av_q2d(inlink->time_base), picref->pos, + av_pix_fmt_descriptors[picref->format].name, + picref->video->pixel_aspect.num, picref->video->pixel_aspect.den, + picref->video->w, picref->video->h, + !picref->video->interlaced ? 'P' : /* Progressive */ + picref->video->top_field_first ? 'T' : 'B', /* Top / Bottom */ + picref->video->key_frame, + av_get_picture_type_char(picref->video->pict_type), + checksum, plane_checksum[0], plane_checksum[1], plane_checksum[2], plane_checksum[3]); + + showinfo->frame++; + avfilter_end_frame(inlink->dst->outputs[0]); +} + +AVFilter avfilter_vf_showinfo = { + .name = "showinfo", + .description = NULL_IF_CONFIG_SMALL("Show textual information for each video frame."), + + .priv_size = sizeof(ShowInfoContext), + .init = init, + + .inputs = (AVFilterPad[]) {{ .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .get_video_buffer = avfilter_null_get_video_buffer, + .start_frame = avfilter_null_start_frame, + .end_frame = end_frame, + .min_perms = AV_PERM_READ, }, + { .name = NULL}}, + + .outputs = (AVFilterPad[]) {{ .name = "default", + .type = AVMEDIA_TYPE_VIDEO }, + { .name = NULL}}, +}; |