FFmpeg: libavfilter/deshake_opencl.c Source File

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libavfilter

deshake_opencl.c

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1 /*

4 *

5 * This file is part of FFmpeg.

6 *

7 * FFmpeg is free software; you can redistribute it and/or

8 * modify it under the terms of the GNU Lesser General Public

9 * License as published by the Free Software Foundation; either

10 * version 2.1 of the License, or (at your option) any later version.

11 *

12 * FFmpeg is distributed in the hope that it will be useful,

13 * but WITHOUT ANY WARRANTY; without even the implied warranty of

14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

15 * Lesser General Public License for more details.

16 *

17 * You should have received a copy of the GNU Lesser General Public

18 * License along with FFmpeg; if not, write to the Free Software

19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

20 */

22 /**

23 * @file

24 * transform input video

25 */

27 #include "libavutil/common.h"

28 #include "libavutil/dict.h"

29 #include "libavutil/pixdesc.h"

30 #include "deshake_opencl.h"

31 #include "libavutil/opencl_internal.h"

33 #define PLANE_NUM 3

34 #define ROUND_TO_16(a) (((((a) - 1)/16)+1)*16)

36 int ff_opencl_transform(AVFilterContext *ctx,

37 int width, int height, int cw, int ch,

38 const float *matrix_y, const float *matrix_uv,

39 enum InterpolateMethod interpolate,

40 enum FillMethod fill, AVFrame *in, AVFrame *out)

41 {

42 int ret = 0;

43 cl_int status;

44 DeshakeContext *deshake = ctx->priv;

45 float4 packed_matrix_lu = {matrix_y[0], matrix_y[1], matrix_y[2], matrix_y[5]};

46 float4 packed_matrix_ch = {matrix_uv[0], matrix_uv[1], matrix_uv[2], matrix_uv[5]};

47 size_t global_worksize_lu[2] = {(size_t)ROUND_TO_16(width), (size_t)ROUND_TO_16(height)};

48 size_t global_worksize_ch[2] = {(size_t)ROUND_TO_16(cw), (size_t)(2*ROUND_TO_16(ch))};

49 size_t local_worksize[2] = {16, 16};

50 FFOpenclParam param_lu = {0};

51 FFOpenclParam param_ch = {0};

52 param_lu.ctx = param_ch.ctx = ctx;

53 param_lu.kernel = deshake->opencl_ctx.kernel_luma;

54 param_ch.kernel = deshake->opencl_ctx.kernel_chroma;

56 if ((unsigned int)interpolate > INTERPOLATE_BIQUADRATIC) {

57 av_log(ctx, AV_LOG_ERROR, "Selected interpolate method is invalid\n");

58 return AVERROR(EINVAL);

59 }

60 ret = avpriv_opencl_set_parameter(&param_lu,

61 FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_inbuf),

62 FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_outbuf),

63 FF_OPENCL_PARAM_INFO(packed_matrix_lu),

64 FF_OPENCL_PARAM_INFO(interpolate),

65 FF_OPENCL_PARAM_INFO(fill),

66 FF_OPENCL_PARAM_INFO(in->linesize[0]),

67 FF_OPENCL_PARAM_INFO(out->linesize[0]),

68 FF_OPENCL_PARAM_INFO(height),

69 FF_OPENCL_PARAM_INFO(width),

70 NULL);

71 if (ret < 0)

72 return ret;

73 ret = avpriv_opencl_set_parameter(&param_ch,

74 FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_inbuf),

75 FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_outbuf),

76 FF_OPENCL_PARAM_INFO(packed_matrix_ch),

77 FF_OPENCL_PARAM_INFO(interpolate),

78 FF_OPENCL_PARAM_INFO(fill),

79 FF_OPENCL_PARAM_INFO(in->linesize[0]),

80 FF_OPENCL_PARAM_INFO(out->linesize[0]),

81 FF_OPENCL_PARAM_INFO(in->linesize[1]),

82 FF_OPENCL_PARAM_INFO(out->linesize[1]),

83 FF_OPENCL_PARAM_INFO(height),

84 FF_OPENCL_PARAM_INFO(width),

85 FF_OPENCL_PARAM_INFO(ch),

86 FF_OPENCL_PARAM_INFO(cw),

87 NULL);

88 if (ret < 0)

89 return ret;

90 status = clEnqueueNDRangeKernel(deshake->opencl_ctx.command_queue,

91 deshake->opencl_ctx.kernel_luma, 2, NULL,

92 global_worksize_lu, local_worksize, 0, NULL, NULL);

93 status |= clEnqueueNDRangeKernel(deshake->opencl_ctx.command_queue,

94 deshake->opencl_ctx.kernel_chroma, 2, NULL,

95 global_worksize_ch, local_worksize, 0, NULL, NULL);

96 if (status != CL_SUCCESS) {

97 av_log(ctx, AV_LOG_ERROR, "OpenCL run kernel error occurred: %s\n", av_opencl_errstr(status));

98 return AVERROR_EXTERNAL;

99 }

100 ret = av_opencl_buffer_read_image(out->data, deshake->opencl_ctx.out_plane_size,

101 deshake->opencl_ctx.plane_num, deshake->opencl_ctx.cl_outbuf,

102 deshake->opencl_ctx.cl_outbuf_size);

103 if (ret < 0)

104 return ret;

105 return ret;

106 }

107

108 int ff_opencl_deshake_init(AVFilterContext *ctx)

109 {

110 int ret = 0;

111 DeshakeContext *deshake = ctx->priv;

112 ret = av_opencl_init(NULL);

113 if (ret < 0)

114 return ret;

115 deshake->opencl_ctx.plane_num = PLANE_NUM;

116 deshake->opencl_ctx.command_queue = av_opencl_get_command_queue();

117 if (!deshake->opencl_ctx.command_queue) {

118 av_log(ctx, AV_LOG_ERROR, "Unable to get OpenCL command queue in filter 'deshake'\n");

119 return AVERROR(EINVAL);

120 }

121 deshake->opencl_ctx.program = av_opencl_compile("avfilter_transform", NULL);

122 if (!deshake->opencl_ctx.program) {

123 av_log(ctx, AV_LOG_ERROR, "OpenCL failed to compile program 'avfilter_transform'\n");

124 return AVERROR(EINVAL);

125 }

126 if (!deshake->opencl_ctx.kernel_luma) {

127 deshake->opencl_ctx.kernel_luma = clCreateKernel(deshake->opencl_ctx.program,

128 "avfilter_transform_luma", &ret);

129 if (ret != CL_SUCCESS) {

130 av_log(ctx, AV_LOG_ERROR, "OpenCL failed to create kernel 'avfilter_transform_luma'\n");

131 return AVERROR(EINVAL);

132 }

133 }

134 if (!deshake->opencl_ctx.kernel_chroma) {

135 deshake->opencl_ctx.kernel_chroma = clCreateKernel(deshake->opencl_ctx.program,

136 "avfilter_transform_chroma", &ret);

137 if (ret != CL_SUCCESS) {

138 av_log(ctx, AV_LOG_ERROR, "OpenCL failed to create kernel 'avfilter_transform_chroma'\n");

139 return AVERROR(EINVAL);

140 }

141 }

142 return ret;

143 }

144

145 void ff_opencl_deshake_uninit(AVFilterContext *ctx)

146 {

147 DeshakeContext *deshake = ctx->priv;

148 av_opencl_buffer_release(&deshake->opencl_ctx.cl_inbuf);

149 av_opencl_buffer_release(&deshake->opencl_ctx.cl_outbuf);

150 clReleaseKernel(deshake->opencl_ctx.kernel_luma);

151 clReleaseKernel(deshake->opencl_ctx.kernel_chroma);

152 clReleaseProgram(deshake->opencl_ctx.program);

153 deshake->opencl_ctx.command_queue = NULL;

154 av_opencl_uninit();

155 }

156

157 int ff_opencl_deshake_process_inout_buf(AVFilterContext *ctx, AVFrame *in, AVFrame *out)

158 {

159 int ret = 0;

160 AVFilterLink *link = ctx->inputs[0];

161 DeshakeContext *deshake = ctx->priv;

162 const int hshift = av_pix_fmt_desc_get(link->format)->log2_chroma_h;

163 int chroma_height = FF_CEIL_RSHIFT(link->h, hshift);

164

165 if ((!deshake->opencl_ctx.cl_inbuf) || (!deshake->opencl_ctx.cl_outbuf)) {

166 deshake->opencl_ctx.in_plane_size[0] = (in->linesize[0] * in->height);

167 deshake->opencl_ctx.in_plane_size[1] = (in->linesize[1] * chroma_height);

168 deshake->opencl_ctx.in_plane_size[2] = (in->linesize[2] * chroma_height);

169 deshake->opencl_ctx.out_plane_size[0] = (out->linesize[0] * out->height);

170 deshake->opencl_ctx.out_plane_size[1] = (out->linesize[1] * chroma_height);

171 deshake->opencl_ctx.out_plane_size[2] = (out->linesize[2] * chroma_height);

172 deshake->opencl_ctx.cl_inbuf_size = deshake->opencl_ctx.in_plane_size[0] +

173 deshake->opencl_ctx.in_plane_size[1] +

174 deshake->opencl_ctx.in_plane_size[2];

175 deshake->opencl_ctx.cl_outbuf_size = deshake->opencl_ctx.out_plane_size[0] +

176 deshake->opencl_ctx.out_plane_size[1] +

177 deshake->opencl_ctx.out_plane_size[2];

178 if (!deshake->opencl_ctx.cl_inbuf) {

179 ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_inbuf,

180 deshake->opencl_ctx.cl_inbuf_size,

181 CL_MEM_READ_ONLY, NULL);

182 if (ret < 0)

183 return ret;

184 }

185 if (!deshake->opencl_ctx.cl_outbuf) {

186 ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_outbuf,

187 deshake->opencl_ctx.cl_outbuf_size,

188 CL_MEM_READ_WRITE, NULL);

189 if (ret < 0)

190 return ret;

191 }

192 }

193 ret = av_opencl_buffer_write_image(deshake->opencl_ctx.cl_inbuf,

194 deshake->opencl_ctx.cl_inbuf_size,

195 0, in->data,deshake->opencl_ctx.in_plane_size,

196 deshake->opencl_ctx.plane_num);

197 if(ret < 0)

198 return ret;

199 return ret;

200 }

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