Commited in SoC by Bobby Bingham on 2007-08-20 05:24:57 Originally committed as revision 12021 to svn://svn.ffmpeg.org/ffmpeg/trunk
Showing the changes to libavfilter/avfilter.c (1 of 1 file). Show all
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| @@ -96,33 +96,77 @@ int avfilter_link(AVFilterContext *src, unsigned srcpad, · 95 unmodified lines | |||
| 96 | return 0; | 96 | return 0; |
| 97 | } | 97 | } |
| 98 | 98 | ||
| 99 | static int common_format(int *fmts0, int *fmts1) | ||
| 100 | { | ||
| 101 | int i, j; | ||
| 102 | |||
| 103 | for(i = 0; fmts0[i] != -1; i ++) | ||
| 104 | for(j = 0; fmts1[j] != -1; j ++) | ||
| 105 | if(fmts0[i] == fmts1[j]) | ||
| 106 | return fmts0[i]; | ||
| 107 | |||
| 108 | return -1; | ||
| 109 | } | ||
| 110 | |||
| 99 | int avfilter_config_link(AVFilterLink *link) | 111 | int avfilter_config_link(AVFilterLink *link) |
| 100 | { | 112 | { |
| 101 | int *fmts[2], i, j; | 113 | int *fmts[3] = {NULL,NULL,NULL}; |
| 102 | int (*config_link)(AVFilterLink *); | 114 | int (*config_link)(AVFilterLink *); |
| 103 | int *(*query_formats)(AVFilterLink *link); | 115 | int *(*query_formats)(AVFilterLink *link); |
| 104 | 116 | ||
| 117 | AVFilterContext *scale; | ||
| 118 | AVFilterLink *link2 = NULL; | ||
| 119 | |||
| 105 | if(!link) | 120 | if(!link) |
| 106 | return 0; | 121 | return 0; |
| 107 | 122 | ||
| 108 | /* find a format both filters support - TODO: auto-insert conversion filter */ | 123 | /* find a format both filters support */ |
| 109 | link->format = -1; | ||
| 110 | if(!(query_formats = link_spad(link).query_formats)) | 124 | if(!(query_formats = link_spad(link).query_formats)) |
| 111 | query_formats = avfilter_default_query_output_formats; | 125 | query_formats = avfilter_default_query_output_formats; |
| 112 | fmts[0] = query_formats(link); | 126 | fmts[0] = query_formats(link); |
| 113 | fmts[1] = link_dpad(link).query_formats(link); | 127 | fmts[1] = link_dpad(link).query_formats(link); |
| 114 | for(i = 0; fmts[0][i] != -1; i ++) | 128 | if((link->format = common_format(fmts[0], fmts[1])) == -1) { |
| 115 | for(j = 0; fmts[1][j] != -1; j ++) | 129 | /* no common format found. insert scale filter to convert */ |
| 116 | if(fmts[0][i] == fmts[1][j]) { | 130 | if(!(scale = avfilter_open(&avfilter_vf_scale, NULL))) |
| 117 | link->format = fmts[0][i]; | 131 | goto format_done; |
| 118 | goto format_done; | 132 | if(scale->filter->init(scale, NULL, NULL)) { |
| 119 | } | 133 | avfilter_destroy(scale); |
| 134 | goto format_done; | ||
| 135 | } | ||
| 136 | |||
| 137 | link->dst->inputs[link->dstpad] = NULL; | ||
| 138 | if(avfilter_link(scale, 0, link->dst, link->dstpad)) { | ||
| 139 | link->dst->inputs[link->dstpad] = link; | ||
| 140 | goto format_done; | ||
| 141 | } | ||
| 142 | link2 = scale->outputs[0]; | ||
| 143 | link->dst = scale; | ||
| 144 | link->dstpad = 0; | ||
| 145 | scale->inputs[0] = link; | ||
| 146 | |||
| 147 | /* now try again to find working colorspaces. | ||
| 148 | * XXX: is it safe to assume that the scale filter always supports the | ||
| 149 | * same input and output colorspaces? */ | ||
| 150 | fmts[2] = scale->input_pads[0].query_formats(link); | ||
| 151 | link->format = common_format(fmts[0], fmts[2]); | ||
| 152 | link2->format = common_format(fmts[1], fmts[2]); | ||
| 153 | } | ||
| 120 | 154 | ||
| 121 | format_done: | 155 | format_done: |
| 122 | av_free(fmts[0]); | 156 | av_free(fmts[0]); |
| 123 | av_free(fmts[1]); | 157 | av_free(fmts[1]); |
| 124 | if(link->format == -1) | 158 | av_free(fmts[2]); |
| 159 | if(link->format == -1 || (link2 && link2->format == -1)) { | ||
| 160 | if(link2) { | ||
| 161 | link->dst = link2->dst; | ||
| 162 | link->dstpad = link2->dstpad; | ||
| 163 | link->dst->inputs[link->dstpad] = link; | ||
| 164 | link->format = -1; | ||
| 165 | avfilter_destroy(scale); | ||
| 166 | av_free(link2); | ||
| 167 | } | ||
| 125 | return -1; | 168 | return -1; |
| 169 | } | ||
| 126 | 170 | ||
| 127 | if(!(config_link = link_spad(link).config_props)) | 171 | if(!(config_link = link_spad(link).config_props)) |
| 128 | config_link = avfilter_default_config_output_link; | 172 | config_link = avfilter_default_config_output_link; |
| @@ -134,6 +178,18 @@ format_done: · 5 unmodified lines | |||
| 134 | if(config_link(link)) | 178 | if(config_link(link)) |
| 135 | return -1; | 179 | return -1; |
| 136 | 180 | ||
| 181 | if(link2) { | ||
| 182 | if(!(config_link = link_spad(link2).config_props)) | ||
| 183 | config_link = avfilter_default_config_output_link; | ||
| 184 | if(config_link(link2)) | ||
| 185 | return -1; | ||
| 186 | |||
| 187 | if(!(config_link = link_dpad(link2).config_props)) | ||
| 188 | config_link = avfilter_default_config_input_link; | ||
| 189 | if(config_link(link2)) | ||
| 190 | return -1; | ||
| 191 | } | ||
| 192 | |||
| 137 | return 0; | 193 | return 0; |
| 138 | } | 194 | } |
| 139 | 195 | ||