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vf_pixdesctest.c
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1 /*
2  * Copyright (c) 2009 Stefano Sabatini
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * pixdesc test filter
24  */
25 
26 #include "libavutil/common.h"
27 #include "libavutil/pixdesc.h"
28 #include "avfilter.h"
29 #include "internal.h"
30 #include "video.h"
31 
32 typedef struct PixdescTestContext {
34  uint16_t *line;
36 
38 {
39  PixdescTestContext *priv = ctx->priv;
40  av_freep(&priv->line);
41 }
42 
43 static int config_props(AVFilterLink *inlink)
44 {
45  PixdescTestContext *priv = inlink->dst->priv;
46 
47  priv->pix_desc = av_pix_fmt_desc_get(inlink->format);
48 
49  av_freep(&priv->line);
50  if (!(priv->line = av_malloc_array(sizeof(*priv->line), inlink->w)))
51  return AVERROR(ENOMEM);
52 
53  return 0;
54 }
55 
56 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
57 {
58  PixdescTestContext *priv = inlink->dst->priv;
59  AVFilterLink *outlink = inlink->dst->outputs[0];
60  AVFrame *out;
61  int i, c, w = inlink->w, h = inlink->h;
62  const int cw = AV_CEIL_RSHIFT(w, priv->pix_desc->log2_chroma_w);
63  const int ch = AV_CEIL_RSHIFT(h, priv->pix_desc->log2_chroma_h);
64 
65  out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
66  if (!out) {
67  av_frame_free(&in);
68  return AVERROR(ENOMEM);
69  }
70 
71  av_frame_copy_props(out, in);
72 
73  for (i = 0; i < 4; i++) {
74  const int h1 = i == 1 || i == 2 ? ch : h;
75  if (out->data[i]) {
76  uint8_t *data = out->data[i] +
77  (out->linesize[i] > 0 ? 0 : out->linesize[i] * (h1-1));
78  memset(data, 0, FFABS(out->linesize[i]) * h1);
79  }
80  }
81 
82  /* copy palette */
83  if (priv->pix_desc->flags & AV_PIX_FMT_FLAG_PAL ||
85  memcpy(out->data[1], in->data[1], AVPALETTE_SIZE);
86 
87  for (c = 0; c < priv->pix_desc->nb_components; c++) {
88  const int w1 = c == 1 || c == 2 ? cw : w;
89  const int h1 = c == 1 || c == 2 ? ch : h;
90 
91  for (i = 0; i < h1; i++) {
93  (void*)in->data,
94  in->linesize,
95  priv->pix_desc,
96  0, i, c, w1, 0);
97 
99  out->data,
100  out->linesize,
101  priv->pix_desc,
102  0, i, c, w1);
103  }
104  }
105 
106  av_frame_free(&in);
107  return ff_filter_frame(outlink, out);
108 }
109 
111  {
112  .name = "default",
113  .type = AVMEDIA_TYPE_VIDEO,
114  .filter_frame = filter_frame,
115  .config_props = config_props,
116  },
117  { NULL }
118 };
119 
121  {
122  .name = "default",
123  .type = AVMEDIA_TYPE_VIDEO,
124  },
125  { NULL }
126 };
127 
129  .name = "pixdesctest",
130  .description = NULL_IF_CONFIG_SMALL("Test pixel format definitions."),
131  .priv_size = sizeof(PixdescTestContext),
132  .uninit = uninit,
133  .inputs = avfilter_vf_pixdesctest_inputs,
134  .outputs = avfilter_vf_pixdesctest_outputs,
135 };
#define AV_PIX_FMT_FLAG_PAL
Pixel format has a palette in data[1], values are indexes in this palette.
Definition: pixdesc.h:132
#define NULL
Definition: coverity.c:32
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2157
This structure describes decoded (raw) audio or video data.
Definition: frame.h:181
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
AVFormatContext * ctx
Definition: movenc-test.c:48
Main libavfilter public API header.
static av_cold void uninit(AVFilterContext *ctx)
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
AVFrame * ff_get_video_buffer(AVFilterLink *link, int w, int h)
Request a picture buffer with a specific set of permissions.
Definition: video.c:76
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
const char * name
Pad name.
Definition: internal.h:59
static const AVFilterPad avfilter_vf_pixdesctest_inputs[]
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
Definition: avfilter.c:1163
uint8_t
#define av_cold
Definition: attributes.h:82
#define AVPALETTE_SIZE
Definition: pixfmt.h:33
void av_write_image_line(const uint16_t *src, uint8_t *data[4], const int linesize[4], const AVPixFmtDescriptor *desc, int x, int y, int c, int w)
Write the values from src to the pixel format component c of an image line.
Definition: pixdesc.c:82
A filter pad used for either input or output.
Definition: internal.h:53
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:154
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
static int config_props(AVFilterLink *inlink)
void * priv
private data for use by the filter
Definition: avfilter.h:319
uint64_t flags
Combination of AV_PIX_FMT_FLAG_...
Definition: pixdesc.h:106
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
static const AVFilterPad avfilter_vf_pixdesctest_outputs[]
#define AV_PIX_FMT_FLAG_PSEUDOPAL
The pixel format is "pseudo-paletted".
Definition: pixdesc.h:158
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:385
FILE * out
Definition: movenc-test.c:54
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:375
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:209
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_log(ac->avr, AV_LOG_TRACE,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> in
Filter definition.
Definition: avfilter.h:141
const char * name
Filter name.
Definition: avfilter.h:145
AVFilterLink ** outputs
array of pointers to output links
Definition: avfilter.h:316
void av_read_image_line(uint16_t *dst, const uint8_t *data[4], const int linesize[4], const AVPixFmtDescriptor *desc, int x, int y, int c, int w, int read_pal_component)
Read a line from an image, and write the values of the pixel format component c to dst...
Definition: pixdesc.c:34
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:192
AVFilter ff_vf_pixdesctest
common internal and external API header
static double c[64]
const AVPixFmtDescriptor * pix_desc
An instance of a filter.
Definition: avfilter.h:304
#define av_freep(p)
#define av_malloc_array(a, b)
internal API functions
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:565
#define AV_CEIL_RSHIFT(a, b)
Definition: common.h:58