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lavfi: add rgbtestsrc source, ported from MPlayer libmpcodecs
The licence was changed from GPL to LGPL with explicit approval from the original author. See thread: Subject: [FFmpeg-devel] [PATCH] lavfi: add rgbtestsrc source, ported from MPlayer libmpcodecs Date: Mon, 11 Jul 2011 16:32:41 +0200
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@ -2045,13 +2045,17 @@ Some examples follow:
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frei0r_src=200x200:10:partik0l=1234 [overlay]; [in][overlay] overlay
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frei0r_src=200x200:10:partik0l=1234 [overlay]; [in][overlay] overlay
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@end example
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@end example
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@section testsrc
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@section rgbtestsrc, testsrc
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Generate a test video pattern, showing a color pattern, a scrolling
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The @code{rgbtestsrc} source generates an RGB test pattern useful for
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gradient and a timestamp. This is mainly intended for testing
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detecting RGB vs BGR issues. You should see a red, green and blue
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purposes.
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stripe from top to bottom.
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It accepts an optional sequence of @var{key}=@var{value} pairs,
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The @code{testsrc} source generates a test video pattern, showing a
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color pattern, a scrolling gradient and a timestamp. This is mainly
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intended for testing purposes.
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Both sources accept an optional sequence of @var{key}=@var{value} pairs,
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separated by ":". The description of the accepted options follows.
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separated by ":". The description of the accepted options follows.
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@table @option
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@table @option
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@ -69,6 +69,7 @@ OBJS-$(CONFIG_COLOR_FILTER) += vsrc_color.o
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OBJS-$(CONFIG_FREI0R_SRC_FILTER) += vf_frei0r.o
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OBJS-$(CONFIG_FREI0R_SRC_FILTER) += vf_frei0r.o
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OBJS-$(CONFIG_MOVIE_FILTER) += vsrc_movie.o
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OBJS-$(CONFIG_MOVIE_FILTER) += vsrc_movie.o
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OBJS-$(CONFIG_NULLSRC_FILTER) += vsrc_nullsrc.o
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OBJS-$(CONFIG_NULLSRC_FILTER) += vsrc_nullsrc.o
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OBJS-$(CONFIG_RGBTESTSRC_FILTER) += vsrc_testsrc.o
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OBJS-$(CONFIG_TESTSRC_FILTER) += vsrc_testsrc.o
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OBJS-$(CONFIG_TESTSRC_FILTER) += vsrc_testsrc.o
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OBJS-$(CONFIG_BUFFERSINK_FILTER) += vsink_buffer.o
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OBJS-$(CONFIG_BUFFERSINK_FILTER) += vsink_buffer.o
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@ -85,6 +85,7 @@ void avfilter_register_all(void)
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REGISTER_FILTER (FREI0R, frei0r_src, vsrc);
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REGISTER_FILTER (FREI0R, frei0r_src, vsrc);
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REGISTER_FILTER (MOVIE, movie, vsrc);
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REGISTER_FILTER (MOVIE, movie, vsrc);
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REGISTER_FILTER (NULLSRC, nullsrc, vsrc);
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REGISTER_FILTER (NULLSRC, nullsrc, vsrc);
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REGISTER_FILTER (RGBTESTSRC, rgbtestsrc, vsrc);
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REGISTER_FILTER (TESTSRC, testsrc, vsrc);
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REGISTER_FILTER (TESTSRC, testsrc, vsrc);
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REGISTER_FILTER (BUFFER, buffersink, vsink);
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REGISTER_FILTER (BUFFER, buffersink, vsink);
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@ -29,8 +29,8 @@
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#include "libavutil/rational.h"
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#include "libavutil/rational.h"
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#define LIBAVFILTER_VERSION_MAJOR 2
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#define LIBAVFILTER_VERSION_MAJOR 2
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#define LIBAVFILTER_VERSION_MINOR 25
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#define LIBAVFILTER_VERSION_MINOR 26
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#define LIBAVFILTER_VERSION_MICRO 1
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#define LIBAVFILTER_VERSION_MICRO 0
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#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
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#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
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LIBAVFILTER_VERSION_MINOR, \
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LIBAVFILTER_VERSION_MINOR, \
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@ -21,13 +21,19 @@
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/**
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/**
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* @file
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* @file
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* Based on the test pattern generator demuxer by Nicolas George:
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* Misc test sources.
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*
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* testsrc is based on the test pattern generator demuxer by Nicolas George:
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* http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-October/037845.html
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* http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-October/037845.html
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*
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* rgbtestsrc is ported from MPlayer libmpcodecs/vf_rgbtest.c by
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* Michael Niedermayer.
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*/
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*/
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#include <float.h>
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#include <float.h>
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#include "libavutil/opt.h"
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#include "libavutil/opt.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/parseutils.h"
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#include "avfilter.h"
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#include "avfilter.h"
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@ -41,6 +47,9 @@ typedef struct {
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char *rate; ///< video frame rate
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char *rate; ///< video frame rate
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char *duration; ///< total duration of the generated video
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char *duration; ///< total duration of the generated video
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void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref);
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void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref);
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/* only used by rgbtest */
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int rgba_map[4];
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} TestSourceContext;
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} TestSourceContext;
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#define OFFSET(x) offsetof(TestSourceContext, x)
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#define OFFSET(x) offsetof(TestSourceContext, x)
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@ -350,3 +359,130 @@ AVFilter avfilter_vsrc_testsrc = {
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};
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};
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#endif /* CONFIG_TESTSRC_FILTER */
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#endif /* CONFIG_TESTSRC_FILTER */
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#if CONFIG_RGBTESTSRC_FILTER
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static const char *rgbtestsrc_get_name(void *ctx)
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{
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return "rgbtestsrc";
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}
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static const AVClass rgbtestsrc_class = {
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"RGBTestSourceContext",
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rgbtestsrc_get_name,
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testsrc_options
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};
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#define R 0
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#define G 1
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#define B 2
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#define A 3
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static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize,
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int x, int y, int r, int g, int b, enum PixelFormat fmt,
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int rgba_map[4])
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{
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int32_t v;
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uint8_t *p;
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switch (fmt) {
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case PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break;
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case PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break;
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case PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break;
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case PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break;
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case PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break;
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case PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break;
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case PIX_FMT_RGB24:
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case PIX_FMT_BGR24:
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v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
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p = dst + 3*x + y*dst_linesize;
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AV_WL24(p, v);
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break;
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case PIX_FMT_RGBA:
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case PIX_FMT_BGRA:
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case PIX_FMT_ARGB:
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case PIX_FMT_ABGR:
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v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8));
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p = dst + 4*x + y*dst_linesize;
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AV_WL32(p, v);
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break;
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}
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}
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static void rgbtest_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref)
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{
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TestSourceContext *test = ctx->priv;
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int x, y, w = picref->video->w, h = picref->video->h;
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for (y = 0; y < h; y++) {
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for (x = 0; x < picref->video->w; x++) {
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int c = 256*x/w;
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int r = 0, g = 0, b = 0;
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if (3*y < h ) r = c;
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else if (3*y < 2*h) g = c;
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else b = c;
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rgbtest_put_pixel(picref->data[0], picref->linesize[0], x, y, r, g, b,
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ctx->outputs[0]->format, test->rgba_map);
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}
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}
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}
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static av_cold int rgbtest_init(AVFilterContext *ctx, const char *args, void *opaque)
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{
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TestSourceContext *test = ctx->priv;
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test->class = &rgbtestsrc_class;
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test->fill_picture_fn = rgbtest_fill_picture;
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return init(ctx, args, opaque);
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}
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static int rgbtest_query_formats(AVFilterContext *ctx)
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{
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static const enum PixelFormat pix_fmts[] = {
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PIX_FMT_RGBA, PIX_FMT_ARGB, PIX_FMT_BGRA, PIX_FMT_ABGR,
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PIX_FMT_BGR24, PIX_FMT_RGB24,
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PIX_FMT_RGB444, PIX_FMT_BGR444,
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PIX_FMT_RGB565, PIX_FMT_BGR565,
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PIX_FMT_RGB555, PIX_FMT_BGR555,
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PIX_FMT_NONE
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};
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avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));
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return 0;
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}
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static int rgbtest_config_props(AVFilterLink *outlink)
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{
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TestSourceContext *test = outlink->src->priv;
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switch (outlink->format) {
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case PIX_FMT_ARGB: test->rgba_map[A] = 0; test->rgba_map[R] = 1; test->rgba_map[G] = 2; test->rgba_map[B] = 3; break;
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case PIX_FMT_ABGR: test->rgba_map[A] = 0; test->rgba_map[B] = 1; test->rgba_map[G] = 2; test->rgba_map[R] = 3; break;
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case PIX_FMT_RGBA:
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case PIX_FMT_RGB24: test->rgba_map[R] = 0; test->rgba_map[G] = 1; test->rgba_map[B] = 2; test->rgba_map[A] = 3; break;
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case PIX_FMT_BGRA:
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case PIX_FMT_BGR24: test->rgba_map[B] = 0; test->rgba_map[G] = 1; test->rgba_map[R] = 2; test->rgba_map[A] = 3; break;
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}
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return config_props(outlink);
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}
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AVFilter avfilter_vsrc_rgbtestsrc = {
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.name = "rgbtestsrc",
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.description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."),
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.priv_size = sizeof(TestSourceContext),
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.init = rgbtest_init,
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.query_formats = rgbtest_query_formats,
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.inputs = (AVFilterPad[]) {{ .name = NULL}},
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.outputs = (AVFilterPad[]) {{ .name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.request_frame = request_frame,
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.config_props = rgbtest_config_props, },
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{ .name = NULL }},
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};
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#endif /* CONFIG_RGBTESTSRC_FILTER */
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