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lavfi: add showinfo filter

Stefano Sabatini committed 15 years ago

Commit 31d84671 parent f7bdffb6 files · +157 −2Browse files

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6 files
  1. Changelog +2 −0
  2. doc/filters.texi +59 −0
  3. libavfilter/Makefile +1 −0
  4. libavfilter/allfilters.c +1 −0
  5. libavfilter/avfilter.h +2 −2
  6. libavfilter/vf_showinfo.c +92 −0
Changelog+2−0
@@ -11,6 +11,8 @@ version <next>: · 10 unmodified lines
11- Frame multithreaded decoding11- Frame multithreaded decoding
12- Lots of deprecated API cruft removed12- Lots of deprecated API cruft removed
13- fft and imdct optimizations for AVX (Sandy Bridge) processors13- fft and imdct optimizations for AVX (Sandy Bridge) processors
14- showinfo filter added
15
14 16
15version 0.7_beta1:17version 0.7_beta1:
16 18
doc/filters.texi+59−0
@@ -1309,6 +1309,65 @@ settb=2*intb · 1308 unmodified lines
1309settb=AVTB1309settb=AVTB
1310@end example1310@end example
1311 1311
1312@section showinfo
1313
1314Show a line containing various information for each input video frame.
1315The input video is not modified.
1316
1317The shown line contains a sequence of key/value pairs of the form
1318@var{key}:@var{value}.
1319
1320A description of each shown parameter follows:
1321
1322@table @option
1323@item n
1324sequential number of the input frame, starting from 0
1325
1326@item pts
1327Presentation TimeStamp of the input frame, expressed as a number of
1328time base units. The time base unit depends on the filter input pad.
1329
1330@item pts_time
1331Presentation TimeStamp of the input frame, expressed as a number of
1332seconds
1333
1334@item pos
1335position of the frame in the input stream, -1 if this information in
1336unavailable and/or meanigless (for example in case of synthetic video)
1337
1338@item fmt
1339pixel format name
1340
1341@item sar
1342sample aspect ratio of the input frame, expressed in the form
1343@var{num}/@var{den}
1344
1345@item s
1346size of the input frame, expressed in the form
1347@var{width}x@var{height}
1348
1349@item i
1350interlaced mode ("P" for "progressive", "T" for top field first, "B"
1351for bottom field first)
1352
1353@item iskey
13541 if the frame is a key frame, 0 otherwise
1355
1356@item type
1357picture type of the input frame ("I" for an I-frame, "P" for a
1358P-frame, "B" for a B-frame, "?" for unknown type).
1359Check also the documentation of the @code{AVPictureType} enum and of
1360the @code{av_get_picture_type_char} function defined in
1361@file{libavutil/avutil.h}.
1362
1363@item crc
1364Adler-32 CRC of the input frame
1365
1366@item plane_crc
1367Adler-32 CRC of each plane of the input frame, expressed in the form
1368"[@var{crc0} @var{crc1} @var{crc2} @var{crc3}]"
1369@end table
1370
1312@section slicify1371@section slicify
1313 1372
1314Pass the images of input video on to next video filter as multiple1373Pass the images of input video on to next video filter as multiple
libavfilter/Makefile+1−0
@@ -48,6 +48,7 @@ OBJS-$(CONFIG_SETDAR_FILTER) += vf_aspect.o · 47 unmodified lines
48OBJS-$(CONFIG_SETPTS_FILTER) += vf_setpts.o48OBJS-$(CONFIG_SETPTS_FILTER) += vf_setpts.o
49OBJS-$(CONFIG_SETSAR_FILTER) += vf_aspect.o49OBJS-$(CONFIG_SETSAR_FILTER) += vf_aspect.o
50OBJS-$(CONFIG_SETTB_FILTER) += vf_settb.o50OBJS-$(CONFIG_SETTB_FILTER) += vf_settb.o
51OBJS-$(CONFIG_SHOWINFO_FILTER) += vf_showinfo.o
51OBJS-$(CONFIG_SLICIFY_FILTER) += vf_slicify.o52OBJS-$(CONFIG_SLICIFY_FILTER) += vf_slicify.o
52OBJS-$(CONFIG_TRANSPOSE_FILTER) += vf_transpose.o53OBJS-$(CONFIG_TRANSPOSE_FILTER) += vf_transpose.o
53OBJS-$(CONFIG_UNSHARP_FILTER) += vf_unsharp.o54OBJS-$(CONFIG_UNSHARP_FILTER) += vf_unsharp.o
libavfilter/allfilters.c+1−0
@@ -66,6 +66,7 @@ void avfilter_register_all(void) · 65 unmodified lines
66 REGISTER_FILTER (SETPTS, setpts, vf);66 REGISTER_FILTER (SETPTS, setpts, vf);
67 REGISTER_FILTER (SETSAR, setsar, vf);67 REGISTER_FILTER (SETSAR, setsar, vf);
68 REGISTER_FILTER (SETTB, settb, vf);68 REGISTER_FILTER (SETTB, settb, vf);
69 REGISTER_FILTER (SHOWINFO, showinfo, vf);
69 REGISTER_FILTER (SLICIFY, slicify, vf);70 REGISTER_FILTER (SLICIFY, slicify, vf);
70 REGISTER_FILTER (TRANSPOSE, transpose, vf);71 REGISTER_FILTER (TRANSPOSE, transpose, vf);
71 REGISTER_FILTER (UNSHARP, unsharp, vf);72 REGISTER_FILTER (UNSHARP, unsharp, vf);
libavfilter/avfilter.h+2−2
@@ -26,8 +26,8 @@ · 25 unmodified lines
26#include "libavutil/samplefmt.h"26#include "libavutil/samplefmt.h"
27 27
28#define LIBAVFILTER_VERSION_MAJOR 228#define LIBAVFILTER_VERSION_MAJOR 2
29#define LIBAVFILTER_VERSION_MINOR 329#define LIBAVFILTER_VERSION_MINOR 1
30#define LIBAVFILTER_VERSION_MICRO 130#define LIBAVFILTER_VERSION_MICRO 0
31 31
32#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \32#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
33 LIBAVFILTER_VERSION_MINOR, \33 LIBAVFILTER_VERSION_MINOR, \
libavfilter/vf_showinfo.c+92−0
@@ -0,0 +1,92 @@
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 fow showing textual video frame information
23 */
24
25#include "libavutil/adler32.h"
26#include "libavutil/imgutils.h"
27#include "libavutil/pixdesc.h"
28#include "avfilter.h"
29
30typedef struct {
31 unsigned int frame;
32} ShowInfoContext;
33
34static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
35{
36 ShowInfoContext *showinfo = ctx->priv;
37 showinfo->frame = 0;
38 return 0;
39}
40
41static void end_frame(AVFilterLink *inlink)
42{
43 AVFilterContext *ctx = inlink->dst;
44 ShowInfoContext *showinfo = ctx->priv;
45 AVFilterBufferRef *picref = inlink->cur_buf;
46 uint32_t plane_crc[4], crc = 0;
47 int plane;
48
49 for (plane = 0; plane < 4; plane++) {
50 size_t linesize = av_image_get_linesize(picref->format, picref->video->w, plane);
51 plane_crc[plane] = av_adler32_update(0 , picref->data[plane], linesize);
52 crc = av_adler32_update(crc, picref->data[plane], linesize);
53 }
54
55 av_log(ctx, AV_LOG_INFO,
56 "n:%d pts:%"PRId64" pts_time:%f pos:%"PRId64" "
57 "fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c "
58 "crc:%u plane_crc:[%u %u %u %u]\n",
59 showinfo->frame,
60 picref->pts, picref ->pts * av_q2d(inlink->time_base), picref->pos,
61 av_pix_fmt_descriptors[picref->format].name,
62 picref->video->pixel_aspect.num, picref->video->pixel_aspect.den,
63 picref->video->w, picref->video->h,
64 !picref->video->interlaced ? 'P' : /* Progressive */
65 picref->video->top_field_first ? 'T' : 'B', /* Top / Bottom */
66 picref->video->key_frame,
67 av_get_picture_type_char(picref->video->pict_type),
68 crc, plane_crc[0], plane_crc[1], plane_crc[2], plane_crc[3]);
69
70 showinfo->frame++;
71 avfilter_end_frame(inlink->dst->outputs[0]);
72}
73
74AVFilter avfilter_vf_showinfo = {
75 .name = "showinfo",
76 .description = NULL_IF_CONFIG_SMALL("Show textual information for each video frame."),
77
78 .priv_size = sizeof(ShowInfoContext),
79 .init = init,
80
81 .inputs = (AVFilterPad[]) {{ .name = "default",
82 .type = AVMEDIA_TYPE_VIDEO,
83 .get_video_buffer = avfilter_null_get_video_buffer,
84 .start_frame = avfilter_null_start_frame,
85 .end_frame = end_frame,
86 .min_perms = AV_PERM_READ, },
87 { .name = NULL}},
88
89 .outputs = (AVFilterPad[]) {{ .name = "default",
90 .type = AVMEDIA_TYPE_VIDEO },
91 { .name = NULL}},
92};

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