From 0b362e5a4bdb624435ba4351f2bbc66920481d7c Mon Sep 17 00:00:00 2001 From: David Trussel Date: Fri, 11 Oct 2019 10:14:49 +0200 Subject: [PATCH] glcolorconvert: add support for the NV16 and NV61 formats NV16/NV61 is basically the same as NV12/NV21 with a higher chroma resolution. Since only the size of the UV plane/texture is different, the same shaders are used as for NV12/NV21. --- gst-libs/gst/gl/gstglcolorconvert.c | 51 +++++++++++++++++++++++++------------ gst-libs/gst/gl/gstglcolorconvert.h | 6 ++--- gst-libs/gst/gl/gstglformat.c | 2 ++ gst-libs/gst/gl/gstglmemory.h | 4 +-- 4 files changed, 42 insertions(+), 21 deletions(-) diff --git a/gst-libs/gst/gl/gstglcolorconvert.c b/gst-libs/gst/gl/gstglcolorconvert.c index 895a93c..44ed009 100644 --- a/gst-libs/gst/gl/gstglcolorconvert.c +++ b/gst-libs/gst/gl/gstglcolorconvert.c @@ -117,8 +117,8 @@ static const gfloat from_rgb_bt709_ucoeff[] = {-0.100640f, -0.338688f, 0.439327f static const gfloat from_rgb_bt709_vcoeff[] = {0.440654f, -0.400285f, -0.040370f}; /* GRAY16 to RGB conversion - * data transferred as GL_LUMINANCE_ALPHA then convert back to GRAY16 - * high byte weight as : 255*256/65535 + * data transferred as GL_LUMINANCE_ALPHA then convert back to GRAY16 + * high byte weight as : 255*256/65535 * ([0~1] denormalize to [0~255],shift to high byte,normalize to [0~1]) * low byte weight as : 255/65535 (similar) * */ @@ -181,8 +181,8 @@ static const struct shader_templ templ_REORDER = }; /* GRAY16 to RGB conversion - * data transferred as GL_LUMINANCE_ALPHA then convert back to GRAY16 - * high byte weight as : 255*256/65535 + * data transferred as GL_LUMINANCE_ALPHA then convert back to GRAY16 + * high byte weight as : 255*256/65535 * ([0~1] denormalize to [0~255],shift to high byte,normalize to [0~1]) * low byte weight as : 255/65535 (similar) * */ @@ -310,22 +310,23 @@ static const struct shader_templ templ_SEMI_PLANAR_to_RGB = GST_GL_TEXTURE_TARGET_2D }; -/* RGB to NV12/NV21 conversion */ -/* NV12: u, v - NV21: v, u */ -static const gchar templ_RGB_to_NV12_NV21_BODY[] = + /* RGB to NV12/NV21/NV16/NV61 conversion */ + /* NV12/NV16: u, v + NV21/NV61: v, u */ +static const gchar templ_RGB_to_SEMI_PLANAR_YUV_BODY[] = "vec4 texel, uv_texel;\n" "vec3 yuv;\n" "texel = texture2D(tex, texcoord).%c%c%c%c;\n" - "uv_texel = texture2D(tex, texcoord * tex_scale0 * 2.0).%c%c%c%c;\n" + "uv_texel = texture2D(tex, texcoord * tex_scale0 * chroma_sampling).%c%c%c%c;\n" "yuv.x = rgb_to_yuv (texel.rgb, offset, coeff1, coeff2, coeff3).x;\n" "yuv.yz = rgb_to_yuv (uv_texel.rgb, offset, coeff1, coeff2, coeff3).yz;\n" "gl_FragData[0] = vec4(yuv.x, 0.0, 0.0, 1.0);\n" "gl_FragData[1] = vec4(yuv.%c, yuv.%c, 0.0, 1.0);\n"; -static const struct shader_templ templ_RGB_to_NV12_NV21 = +static const struct shader_templ templ_RGB_to_SEMI_PLANAR_YUV = { NULL, - DEFAULT_UNIFORMS RGB_TO_YUV_COEFFICIENTS "uniform sampler2D tex;\n", + DEFAULT_UNIFORMS RGB_TO_YUV_COEFFICIENTS "uniform sampler2D tex;\n" + "uniform vec2 chroma_sampling;\n", { glsl_func_rgb_to_yuv, NULL, }, GST_GL_TEXTURE_TARGET_2D }; @@ -912,7 +913,7 @@ _init_supported_formats (GstGLContext * context, gboolean output, /* Always supported input formats or output with multiple draw buffers */ if (!output || (!context || context->gl_vtable->DrawBuffers)) _append_value_string_list (supported_formats, "Y444", "I420", "YV12", - "Y42B", "Y41B", "NV12", "NV21", NULL); + "Y42B", "Y41B", "NV12", "NV21", "NV16", "NV61", NULL); /* Requires reading from a RG/LA framebuffer... */ if (!context || (USING_GLES3 (context) || USING_OPENGL (context))) @@ -1532,6 +1533,8 @@ _get_n_textures (GstVideoFormat v_format) return 1; case GST_VIDEO_FORMAT_NV12: case GST_VIDEO_FORMAT_NV21: + case GST_VIDEO_FORMAT_NV16: + case GST_VIDEO_FORMAT_NV61: case GST_VIDEO_FORMAT_P010_10LE: case GST_VIDEO_FORMAT_P010_10BE: case GST_VIDEO_FORMAT_P016_LE: @@ -1679,6 +1682,7 @@ _YUV_to_RGB (GstGLColorConvert * convert) break; } case GST_VIDEO_FORMAT_NV12: + case GST_VIDEO_FORMAT_NV16: { char val2 = convert->priv->in_tex_formats[1] == GST_GL_RG ? 'g' : 'a'; info->templ = &templ_SEMI_PLANAR_to_RGB; @@ -1690,6 +1694,7 @@ _YUV_to_RGB (GstGLColorConvert * convert) break; } case GST_VIDEO_FORMAT_NV21: + case GST_VIDEO_FORMAT_NV61: { char val2 = convert->priv->in_tex_formats[1] == GST_GL_RG ? 'g' : 'a'; info->templ = &templ_SEMI_PLANAR_to_RGB; @@ -1810,20 +1815,34 @@ _RGB_to_YUV (GstGLColorConvert * convert) info->out_n_textures = 1; break; case GST_VIDEO_FORMAT_NV12: - info->templ = &templ_RGB_to_NV12_NV21, - info->frag_body = g_strdup_printf (templ_RGB_to_NV12_NV21_BODY, + case GST_VIDEO_FORMAT_NV16: + info->templ = &templ_RGB_to_SEMI_PLANAR_YUV, + info->frag_body = g_strdup_printf (templ_RGB_to_SEMI_PLANAR_YUV_BODY, pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3], pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3], 'y', 'z'); info->out_n_textures = 2; + if (out_format == GST_VIDEO_FORMAT_NV16) { + info->chroma_sampling[0] = 2.0f; + info->chroma_sampling[1] = 1.0f; + } else { + info->chroma_sampling[0] = info->chroma_sampling[1] = 2.0f; + } break; case GST_VIDEO_FORMAT_NV21: - info->templ = &templ_RGB_to_NV12_NV21, - info->frag_body = g_strdup_printf (templ_RGB_to_NV12_NV21_BODY, + case GST_VIDEO_FORMAT_NV61: + info->templ = &templ_RGB_to_SEMI_PLANAR_YUV, + info->frag_body = g_strdup_printf (templ_RGB_to_SEMI_PLANAR_YUV_BODY, pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3], pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3], 'z', 'y'); info->out_n_textures = 2; + if (out_format == GST_VIDEO_FORMAT_NV61) { + info->chroma_sampling[0] = 2.0f; + info->chroma_sampling[1] = 1.0f; + } else { + info->chroma_sampling[0] = info->chroma_sampling[1] = 2.0f; + } break; default: break; diff --git a/gst-libs/gst/gl/gstglcolorconvert.h b/gst-libs/gst/gl/gstglcolorconvert.h index 59ddfe8..1fb6376 100644 --- a/gst-libs/gst/gl/gstglcolorconvert.h +++ b/gst-libs/gst/gl/gstglcolorconvert.h @@ -95,9 +95,9 @@ struct _GstGLColorConvertClass #define GST_GL_COLOR_CONVERT_FORMATS "{ RGBA, RGB, RGBx, BGR, BGRx, BGRA, xRGB, " \ "xBGR, ARGB, ABGR, Y444, I420, YV12, Y42B, " \ - "Y41B, NV12, NV21, YUY2, UYVY, AYUV, VUYA, Y410, " \ - "GRAY8, GRAY16_LE, GRAY16_BE, RGB16, BGR16, ARGB64 " \ - COLOR_CONVERT_EXT_FORMATS "}" + "Y41B, NV12, NV21, NV16, NV61, YUY2, UYVY, AYUV, " \ + "VUYA, Y410, GRAY8, GRAY16_LE, GRAY16_BE, " \ + "RGB16, BGR16, ARGB64 " COLOR_CONVERT_EXT_FORMATS "}" /** * GST_GL_COLOR_CONVERT_VIDEO_CAPS: diff --git a/gst-libs/gst/gl/gstglformat.c b/gst-libs/gst/gl/gstglformat.c index 6696708..2cb6dcb 100644 --- a/gst-libs/gst/gl/gstglformat.c +++ b/gst-libs/gst/gl/gstglformat.c @@ -190,6 +190,8 @@ gst_gl_format_from_video_info (GstGLContext * context, GstVideoInfo * vinfo, break; case GST_VIDEO_FORMAT_NV12: case GST_VIDEO_FORMAT_NV21: + case GST_VIDEO_FORMAT_NV16: + case GST_VIDEO_FORMAT_NV61: n_plane_components = plane == 0 ? 1 : 2; break; case GST_VIDEO_FORMAT_GRAY8: diff --git a/gst-libs/gst/gl/gstglmemory.h b/gst-libs/gst/gl/gstglmemory.h index 3c9f42b..ec12567 100644 --- a/gst-libs/gst/gl/gstglmemory.h +++ b/gst-libs/gst/gl/gstglmemory.h @@ -58,8 +58,8 @@ GType gst_gl_memory_allocator_get_type(void); #define GST_GL_MEMORY_VIDEO_FORMATS_STR \ "{ RGBA, BGRA, RGBx, BGRx, ARGB, ABGR, xRGB, xBGR, RGB, BGR, RGB16, BGR16, " \ - "AYUV, VUYA, Y410, I420, YV12, NV12, NV21, YUY2, UYVY, Y41B, Y42B, Y444, " \ - "GRAY8, GRAY16_LE, GRAY16_BE, ARGB64" MEMORY_VIDEO_EXT_FORMATS "}" + "AYUV, VUYA, Y410, I420, YV12, NV12, NV21, NV16, NV61, YUY2, UYVY, Y41B, " \ + "Y42B, Y444, GRAY8, GRAY16_LE, GRAY16_BE, ARGB64" MEMORY_VIDEO_EXT_FORMATS "}" /** * GstGLMemory: -- 2.7.4