From ec2ac9271c91633e5d88551867a7f03bb81852f1 Mon Sep 17 00:00:00 2001 From: Stefano Sabatini Date: Mon, 11 Jul 2011 16:27:09 +0200 Subject: [PATCH] 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 Signed-off-by: Anton Khirnov --- doc/filters.texi | 14 ++-- libavfilter/Makefile | 1 + libavfilter/allfilters.c | 1 + libavfilter/avfilter.h | 2 +- libavfilter/vsrc_testsrc.c | 142 ++++++++++++++++++++++++++++++++++++- 5 files changed, 153 insertions(+), 7 deletions(-) diff --git a/doc/filters.texi b/doc/filters.texi index a50a0fa269..520a6cb31f 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -1974,13 +1974,17 @@ Some examples follow: frei0r_src=200x200:10:partik0l=1234 [overlay]; [in][overlay] overlay @end example -@section testsrc +@section rgbtestsrc, testsrc -Generate a test video pattern, showing a color pattern, a scrolling -gradient and a timestamp. This is mainly intended for testing -purposes. +The @code{rgbtestsrc} source generates an RGB test pattern useful for +detecting RGB vs BGR issues. You should see a red, green and blue +stripe from top to bottom. -It accepts an optional sequence of @var{key}=@var{value} pairs, +The @code{testsrc} source generates a test video pattern, showing a +color pattern, a scrolling gradient and a timestamp. This is mainly +intended for testing purposes. + +Both sources accept an optional sequence of @var{key}=@var{value} pairs, separated by ":". The description of the accepted options follows. @table @option diff --git a/libavfilter/Makefile b/libavfilter/Makefile index e91cfeaa63..e9eaf9550d 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -64,6 +64,7 @@ OBJS-$(CONFIG_COLOR_FILTER) += vsrc_color.o OBJS-$(CONFIG_FREI0R_SRC_FILTER) += vf_frei0r.o OBJS-$(CONFIG_MOVIE_FILTER) += vsrc_movie.o OBJS-$(CONFIG_NULLSRC_FILTER) += vsrc_nullsrc.o +OBJS-$(CONFIG_RGBTESTSRC_FILTER) += vsrc_testsrc.o OBJS-$(CONFIG_TESTSRC_FILTER) += vsrc_testsrc.o OBJS-$(CONFIG_NULLSINK_FILTER) += vsink_nullsink.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index cf7db8886a..d72987402c 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -85,6 +85,7 @@ void avfilter_register_all(void) REGISTER_FILTER (FREI0R, frei0r_src, vsrc); REGISTER_FILTER (MOVIE, movie, vsrc); REGISTER_FILTER (NULLSRC, nullsrc, vsrc); + REGISTER_FILTER (RGBTESTSRC, rgbtestsrc, vsrc); REGISTER_FILTER (TESTSRC, testsrc, vsrc); REGISTER_FILTER (NULLSINK, nullsink, vsink); diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h index 8de0f2b5ca..f83c861f4b 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 12 +#define LIBAVFILTER_VERSION_MINOR 13 #define LIBAVFILTER_VERSION_MICRO 0 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ diff --git a/libavfilter/vsrc_testsrc.c b/libavfilter/vsrc_testsrc.c index 557f4b0edc..be3bea1e0f 100644 --- a/libavfilter/vsrc_testsrc.c +++ b/libavfilter/vsrc_testsrc.c @@ -21,14 +21,20 @@ /** * @file - * Based on the test pattern generator demuxer by Nicolas George: + * Misc test sources. + * + * testsrc is based on the test pattern generator demuxer by Nicolas George: * http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2007-October/037845.html + * + * rgbtestsrc is ported from MPlayer libmpcodecs/vf_rgbtest.c by + * Michael Niedermayer. */ #include #include "libavutil/mathematics.h" #include "libavutil/opt.h" +#include "libavutil/intreadwrite.h" #include "libavutil/parseutils.h" #include "avfilter.h" @@ -44,6 +50,9 @@ typedef struct { AVRational sar; ///< sample aspect ratio void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref); + + /* only used by rgbtest */ + int rgba_map[4]; } TestSourceContext; #define OFFSET(x) offsetof(TestSourceContext, x) @@ -140,6 +149,8 @@ static int request_frame(AVFilterLink *outlink) return 0; } +#if CONFIG_TESTSRC_FILTER + static const char *testsrc_get_name(void *ctx) { return "testsrc"; @@ -357,3 +368,132 @@ AVFilter avfilter_vsrc_testsrc = { .config_props = config_props, }, { .name = NULL }}, }; + +#endif /* CONFIG_TESTSRC_FILTER */ + +#if CONFIG_RGBTESTSRC_FILTER + +static const char *rgbtestsrc_get_name(void *ctx) +{ + return "rgbtestsrc"; +} + +static const AVClass rgbtestsrc_class = { + .class_name = "RGBTestSourceContext", + .item_name = rgbtestsrc_get_name, + .option = testsrc_options, +}; + +#define R 0 +#define G 1 +#define B 2 +#define A 3 + +static void rgbtest_put_pixel(uint8_t *dst, int dst_linesize, + int x, int y, int r, int g, int b, enum PixelFormat fmt, + int rgba_map[4]) +{ + int32_t v; + uint8_t *p; + + switch (fmt) { + case PIX_FMT_BGR444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4); break; + case PIX_FMT_RGB444: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b >> 4) << 8) | ((g >> 4) << 4) | (r >> 4); break; + case PIX_FMT_BGR555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<10) | ((g>>3)<<5) | (b>>3); break; + case PIX_FMT_RGB555: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<10) | ((g>>3)<<5) | (r>>3); break; + case PIX_FMT_BGR565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((r>>3)<<11) | ((g>>2)<<5) | (b>>3); break; + case PIX_FMT_RGB565: ((uint16_t*)(dst + y*dst_linesize))[x] = ((b>>3)<<11) | ((g>>2)<<5) | (r>>3); break; + case PIX_FMT_RGB24: + case PIX_FMT_BGR24: + v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8)); + p = dst + 3*x + y*dst_linesize; + AV_WL24(p, v); + break; + case PIX_FMT_RGBA: + case PIX_FMT_BGRA: + case PIX_FMT_ARGB: + case PIX_FMT_ABGR: + v = (r << (rgba_map[R]*8)) + (g << (rgba_map[G]*8)) + (b << (rgba_map[B]*8)); + p = dst + 4*x + y*dst_linesize; + AV_WL32(p, v); + break; + } +} + +static void rgbtest_fill_picture(AVFilterContext *ctx, AVFilterBufferRef *picref) +{ + TestSourceContext *test = ctx->priv; + int x, y, w = picref->video->w, h = picref->video->h; + + for (y = 0; y < h; y++) { + for (x = 0; x < picref->video->w; x++) { + int c = 256*x/w; + int r = 0, g = 0, b = 0; + + if (3*y < h ) r = c; + else if (3*y < 2*h) g = c; + else b = c; + + rgbtest_put_pixel(picref->data[0], picref->linesize[0], x, y, r, g, b, + ctx->outputs[0]->format, test->rgba_map); + } + } +} + +static av_cold int rgbtest_init(AVFilterContext *ctx, const char *args, void *opaque) +{ + TestSourceContext *test = ctx->priv; + + test->class = &rgbtestsrc_class; + test->fill_picture_fn = rgbtest_fill_picture; + return init_common(ctx, args, opaque); +} + +static int rgbtest_query_formats(AVFilterContext *ctx) +{ + static const enum PixelFormat pix_fmts[] = { + PIX_FMT_RGBA, PIX_FMT_ARGB, PIX_FMT_BGRA, PIX_FMT_ABGR, + PIX_FMT_BGR24, PIX_FMT_RGB24, + PIX_FMT_RGB444, PIX_FMT_BGR444, + PIX_FMT_RGB565, PIX_FMT_BGR565, + PIX_FMT_RGB555, PIX_FMT_BGR555, + PIX_FMT_NONE + }; + avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts)); + return 0; +} + +static int rgbtest_config_props(AVFilterLink *outlink) +{ + TestSourceContext *test = outlink->src->priv; + + switch (outlink->format) { + 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; + 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; + case PIX_FMT_RGBA: + 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; + case PIX_FMT_BGRA: + 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; + } + + return config_props(outlink); +} + +AVFilter avfilter_vsrc_rgbtestsrc = { + .name = "rgbtestsrc", + .description = NULL_IF_CONFIG_SMALL("Generate RGB test pattern."), + .priv_size = sizeof(TestSourceContext), + .init = rgbtest_init, + + .query_formats = rgbtest_query_formats, + + .inputs = (AVFilterPad[]) {{ .name = NULL}}, + + .outputs = (AVFilterPad[]) {{ .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .request_frame = request_frame, + .config_props = rgbtest_config_props, }, + { .name = NULL }}, +}; + +#endif /* CONFIG_RGBTESTSRC_FILTER */