diff options
Diffstat (limited to 'libavfilter/vsrc_testsrc.c')
-rw-r--r-- | libavfilter/vsrc_testsrc.c | 138 |
1 files changed, 137 insertions, 1 deletions
diff --git a/libavfilter/vsrc_testsrc.c b/libavfilter/vsrc_testsrc.c index fe7bc1c675..e2cf4d47ce 100644 --- a/libavfilter/vsrc_testsrc.c +++ b/libavfilter/vsrc_testsrc.c @@ -21,13 +21,19 @@ /** * @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 <float.h> #include "libavutil/opt.h" +#include "libavutil/intreadwrite.h" #include "libavutil/parseutils.h" #include "avfilter.h" @@ -41,6 +47,9 @@ typedef struct { char *rate; ///< video frame rate char *duration; ///< total duration of the generated video void (* fill_picture_fn)(AVFilterContext *ctx, AVFilterBufferRef *picref); + + /* only used by rgbtest */ + int rgba_map[4]; } TestSourceContext; #define OFFSET(x) offsetof(TestSourceContext, x) @@ -350,3 +359,130 @@ AVFilter avfilter_vsrc_testsrc = { }; #endif /* CONFIG_TESTSRC_FILTER */ + +#if CONFIG_RGBTESTSRC_FILTER + +static const char *rgbtestsrc_get_name(void *ctx) +{ + return "rgbtestsrc"; +} + +static const AVClass rgbtestsrc_class = { + "RGBTestSourceContext", + rgbtestsrc_get_name, + 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(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_pixel_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 */ |