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|---|---|---|---|
| 1 | /* GATE PROJECT LICENSE: | ||
| 2 | +----------------------------------------------------------------------------+ | ||
| 3 | | Copyright (c) 2018-2026, Stefan Meislinger <sm@opengate.at> | | ||
| 4 | | All rights reserved. | | ||
| 5 | | | | ||
| 6 | | Redistribution and use in source and binary forms, with or without | | ||
| 7 | | modification, are permitted provided that the following conditions are met:| | ||
| 8 | | | | ||
| 9 | | 1. Redistributions of source code must retain the above copyright notice, | | ||
| 10 | | this list of conditions and the following disclaimer. | | ||
| 11 | | 2. Redistributions in binary form must reproduce the above copyright | | ||
| 12 | | notice, this list of conditions and the following disclaimer in the | | ||
| 13 | | documentation and/or other materials provided with the distribution. | | ||
| 14 | | | | ||
| 15 | | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"| | ||
| 16 | | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | | ||
| 17 | | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | | ||
| 18 | | ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | | ||
| 19 | | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | | ||
| 20 | | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | | ||
| 21 | | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | | ||
| 22 | | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | | ||
| 23 | | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | | ||
| 24 | | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | | ||
| 25 | | THE POSSIBILITY OF SUCH DAMAGE. | | ||
| 26 | +----------------------------------------------------------------------------+ | ||
| 27 | */ | ||
| 28 | #include "gate/io/videosources.h" | ||
| 29 | #include "gate/results.h" | ||
| 30 | #include "gate/files.h" | ||
| 31 | #include "gate/graphics/pngimages.h" | ||
| 32 | #include "gate/graphics/jpegimages.h" | ||
| 33 | |||
| 34 | typedef struct gate_videowriter_impl_class | ||
| 35 | { | ||
| 36 | GATE_INTERFACE_VTBL(gate_video_writer) const* vtbl; | ||
| 37 | |||
| 38 | gate_atomic_int_t ref_counter; | ||
| 39 | gate_enumint_t filetype; | ||
| 40 | gate_video_format_t format; | ||
| 41 | gate_string_t path; | ||
| 42 | gate_string_t file_prefix; | ||
| 43 | gate_string_t file_extension; | ||
| 44 | gate_filestream_t* stream; | ||
| 45 | gate_timecounter_t start_time; | ||
| 46 | gate_timecounter_t last_frame_time; | ||
| 47 | gate_uint64_t frame_id; | ||
| 48 | } gate_videowriter_impl_t; | ||
| 49 | |||
| 50 | ✗ | static char const* videowriter_get_interface_name(void* thisptr) | |
| 51 | { | ||
| 52 | GATE_UNUSED_ARG(thisptr); | ||
| 53 | ✗ | return GATE_INTERFACE_NAME_VIDEO_WRITER; | |
| 54 | } | ||
| 55 | ✗ | static void videowriter_release(void* thisptr) | |
| 56 | { | ||
| 57 | ✗ | gate_videowriter_impl_t* const self = (gate_videowriter_impl_t*)thisptr; | |
| 58 | ✗ | if (gate_atomic_int_dec(&self->ref_counter) == 0) | |
| 59 | { | ||
| 60 | ✗ | if (self->stream) | |
| 61 | { | ||
| 62 | ✗ | gate_object_release(self->stream); | |
| 63 | } | ||
| 64 | ✗ | gate_string_release(&self->path); | |
| 65 | ✗ | gate_string_release(&self->file_prefix); | |
| 66 | ✗ | gate_string_release(&self->file_extension); | |
| 67 | } | ||
| 68 | ✗ | } | |
| 69 | ✗ | static int videowriter_retain(void* thisptr) | |
| 70 | { | ||
| 71 | ✗ | gate_videowriter_impl_t* const self = (gate_videowriter_impl_t*)thisptr; | |
| 72 | ✗ | return gate_atomic_int_inc(&self->ref_counter); | |
| 73 | } | ||
| 74 | |||
| 75 | ✗ | static gate_string_t* generate_next_frame_file_name(gate_videowriter_impl_t* self, gate_string_t* file_name) | |
| 76 | { | ||
| 77 | ✗ | gate_string_t* ret = NULL; | |
| 78 | ✗ | gate_uint64_t frame_id = ++self->frame_id; | |
| 79 | gate_strbuilder_t builder; | ||
| 80 | |||
| 81 | ✗ | gate_strbuilder_create(&builder, gate_string_length(&self->path) + 32); | |
| 82 | ✗ | gate_strbuilder_append_string(&builder, &self->path); | |
| 83 | ✗ | gate_strbuilder_append_string(&builder, &self->file_prefix); | |
| 84 | ✗ | gate_strbuilder_append_cstr(&builder, "__"); | |
| 85 | ✗ | gate_strbuilder_append_uint64(&builder, frame_id); | |
| 86 | ✗ | gate_strbuilder_append_cstr(&builder, "-"); | |
| 87 | ✗ | gate_strbuilder_append_uint64(&builder, 0); | |
| 88 | ✗ | gate_strbuilder_append_string(&builder, &self->file_extension); | |
| 89 | |||
| 90 | ✗ | ret = gate_strbuilder_to_string(&builder, file_name); | |
| 91 | ✗ | gate_strbuilder_release(&builder); | |
| 92 | ✗ | return ret; | |
| 93 | } | ||
| 94 | |||
| 95 | ✗ | static gate_result_t write_png_frame(gate_videowriter_impl_t* self, gate_video_frame_t const* frame) | |
| 96 | { | ||
| 97 | ✗ | gate_result_t ret = GATE_RESULT_FAILED; | |
| 98 | ✗ | gate_string_t file_path = GATE_STRING_INIT_EMPTY; | |
| 99 | ✗ | gate_filestream_t* stream = NULL; | |
| 100 | |||
| 101 | do | ||
| 102 | { | ||
| 103 | ✗ | if (NULL == generate_next_frame_file_name(self, &file_path)) | |
| 104 | { | ||
| 105 | ✗ | ret = GATE_RESULT_OUTOFMEMORY; | |
| 106 | ✗ | break; | |
| 107 | } | ||
| 108 | |||
| 109 | ✗ | ret = gate_file_openstream(&file_path, GATE_STREAM_OPEN_WRITE, &stream); | |
| 110 | ✗ | GATE_BREAK_IF_FAILED(ret); | |
| 111 | |||
| 112 | ✗ | ret = gate_pngimage_save(&frame->image, (gate_stream_t*)stream, 0); | |
| 113 | } while (0); | ||
| 114 | |||
| 115 | ✗ | gate_string_release(&file_path); | |
| 116 | ✗ | if (stream) | |
| 117 | { | ||
| 118 | ✗ | gate_object_release(stream); | |
| 119 | } | ||
| 120 | |||
| 121 | ✗ | return ret; | |
| 122 | } | ||
| 123 | |||
| 124 | ✗ | static gate_result_t write_jpeg_frame(gate_videowriter_impl_t* self, gate_video_frame_t const* frame) | |
| 125 | { | ||
| 126 | ✗ | gate_result_t ret = GATE_RESULT_FAILED; | |
| 127 | ✗ | gate_string_t file_path = GATE_STRING_INIT_EMPTY; | |
| 128 | ✗ | gate_filestream_t* stream = NULL; | |
| 129 | |||
| 130 | do | ||
| 131 | { | ||
| 132 | ✗ | if (NULL == generate_next_frame_file_name(self, &file_path)) | |
| 133 | { | ||
| 134 | ✗ | ret = GATE_RESULT_OUTOFMEMORY; | |
| 135 | ✗ | break; | |
| 136 | } | ||
| 137 | |||
| 138 | ✗ | ret = gate_file_openstream(&file_path, GATE_STREAM_OPEN_WRITE, &stream); | |
| 139 | ✗ | GATE_BREAK_IF_FAILED(ret); | |
| 140 | |||
| 141 | ✗ | ret = gate_jpegimage_save(&frame->image, (gate_stream_t*)stream, 0); | |
| 142 | } while (0); | ||
| 143 | |||
| 144 | ✗ | gate_string_release(&file_path); | |
| 145 | ✗ | if (stream) | |
| 146 | { | ||
| 147 | ✗ | gate_object_release(stream); | |
| 148 | } | ||
| 149 | |||
| 150 | ✗ | return ret; | |
| 151 | } | ||
| 152 | |||
| 153 | ✗ | static gate_result_t videowriter_write(void* thisptr, gate_video_frame_t const* frame) | |
| 154 | { | ||
| 155 | ✗ | gate_videowriter_impl_t* const self = (gate_videowriter_impl_t*)thisptr; | |
| 156 | ✗ | switch (self->filetype) | |
| 157 | { | ||
| 158 | ✗ | case GATE_VIDEO_FILEWRITER_TYPE_PNG: | |
| 159 | { | ||
| 160 | ✗ | return write_png_frame(self, frame); | |
| 161 | } | ||
| 162 | ✗ | case GATE_VIDEO_FILEWRITER_TYPE_JPEG: | |
| 163 | { | ||
| 164 | ✗ | return write_jpeg_frame(self, frame); | |
| 165 | } | ||
| 166 | ✗ | default: | |
| 167 | { | ||
| 168 | ✗ | return GATE_RESULT_NOTSUPPORTED; | |
| 169 | } | ||
| 170 | } | ||
| 171 | } | ||
| 172 | |||
| 173 | ✗ | static GATE_INTERFACE_VTBL(gate_video_writer) const* init_videowriter_vtbl() | |
| 174 | { | ||
| 175 | static GATE_INTERFACE_VTBL(gate_video_writer) global_vtbl; | ||
| 176 | ✗ | if (global_vtbl.get_interface_name == NULL) | |
| 177 | { | ||
| 178 | GATE_INTERFACE_VTBL(gate_video_writer) const local_vtbl = | ||
| 179 | { | ||
| 180 | &videowriter_get_interface_name, | ||
| 181 | &videowriter_release, | ||
| 182 | &videowriter_retain, | ||
| 183 | &videowriter_write | ||
| 184 | }; | ||
| 185 | ✗ | global_vtbl = local_vtbl; | |
| 186 | } | ||
| 187 | ✗ | return &global_vtbl; | |
| 188 | } | ||
| 189 | |||
| 190 | |||
| 191 | ✗ | gate_result_t gate_video_filewriter_create( | |
| 192 | gate_enumint_t filetype, | ||
| 193 | gate_string_t const* path, | ||
| 194 | gate_video_format_t const* ptr_format, | ||
| 195 | gate_video_writer_t** ptr_writer) | ||
| 196 | { | ||
| 197 | static gate_string_t const file_ext_png = GATE_STRING_INIT_STATIC(".png"); | ||
| 198 | static gate_string_t const file_ext_jpg = GATE_STRING_INIT_STATIC(".jpg"); | ||
| 199 | ✗ | gate_result_t ret = GATE_RESULT_FAILED; | |
| 200 | ✗ | gate_videowriter_impl_t* impl = NULL; | |
| 201 | do | ||
| 202 | { | ||
| 203 | ✗ | impl = (gate_videowriter_impl_t*)gate_mem_alloc(sizeof(gate_videowriter_impl_t)); | |
| 204 | ✗ | if (impl == NULL) | |
| 205 | { | ||
| 206 | ✗ | ret = GATE_RESULT_OUTOFMEMORY; | |
| 207 | ✗ | break; | |
| 208 | } | ||
| 209 | ✗ | gate_mem_clear(impl, sizeof(gate_videowriter_impl_t)); | |
| 210 | ✗ | impl->vtbl = init_videowriter_vtbl(); | |
| 211 | ✗ | gate_atomic_int_init(&impl->ref_counter, 1); | |
| 212 | |||
| 213 | ✗ | gate_mem_copy(&impl->format, ptr_format, sizeof(impl->format)); | |
| 214 | ✗ | impl->filetype = filetype; | |
| 215 | |||
| 216 | ✗ | switch (filetype) | |
| 217 | { | ||
| 218 | ✗ | case GATE_VIDEO_FILEWRITER_TYPE_PNG: | |
| 219 | { | ||
| 220 | ✗ | gate_file_split_path(path, &impl->path, &impl->file_prefix); | |
| 221 | ✗ | gate_string_duplicate(&impl->file_extension, &file_ext_png); | |
| 222 | ✗ | ret = GATE_RESULT_OK; | |
| 223 | ✗ | break; | |
| 224 | } | ||
| 225 | ✗ | case GATE_VIDEO_FILEWRITER_TYPE_JPEG: | |
| 226 | { | ||
| 227 | ✗ | gate_file_split_path(path, &impl->path, &impl->file_prefix); | |
| 228 | ✗ | gate_string_duplicate(&impl->file_extension, &file_ext_jpg); | |
| 229 | ✗ | ret = GATE_RESULT_OK; | |
| 230 | ✗ | break; | |
| 231 | } | ||
| 232 | ✗ | default: | |
| 233 | { | ||
| 234 | ✗ | ret = GATE_RESULT_NOTSUPPORTED; | |
| 235 | ✗ | break; | |
| 236 | } | ||
| 237 | } | ||
| 238 | |||
| 239 | ✗ | GATE_BREAK_IF_FAILED(ret); | |
| 240 | |||
| 241 | ✗ | if (ptr_writer) | |
| 242 | { | ||
| 243 | ✗ | *ptr_writer = (gate_video_writer_t*)impl; | |
| 244 | ✗ | impl = NULL; | |
| 245 | } | ||
| 246 | ✗ | ret = GATE_RESULT_OK; | |
| 247 | } while (0); | ||
| 248 | |||
| 249 | ✗ | if (impl) | |
| 250 | { | ||
| 251 | ✗ | videowriter_release(impl); | |
| 252 | } | ||
| 253 | ✗ | return ret; | |
| 254 | } | ||
| 255 |