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2ba45a60 DM |
1 | /* |
2 | * YUV4MPEG muxer | |
3 | * Copyright (c) 2001, 2002, 2003 Fabrice Bellard | |
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 | */ | |
21 | ||
22 | #include "libavutil/pixdesc.h" | |
23 | #include "avformat.h" | |
24 | #include "internal.h" | |
25 | #include "yuv4mpeg.h" | |
26 | ||
27 | #define Y4M_LINE_MAX 256 | |
28 | ||
29 | static int yuv4_generate_header(AVFormatContext *s, char* buf) | |
30 | { | |
31 | AVStream *st; | |
32 | int width, height; | |
33 | int raten, rated, aspectn, aspectd, n; | |
34 | char inter; | |
35 | const char *colorspace = ""; | |
36 | ||
37 | st = s->streams[0]; | |
38 | width = st->codec->width; | |
39 | height = st->codec->height; | |
40 | ||
41 | // TODO: should be avg_frame_rate | |
42 | av_reduce(&raten, &rated, st->time_base.den, | |
43 | st->time_base.num, (1UL << 31) - 1); | |
44 | ||
45 | aspectn = st->sample_aspect_ratio.num; | |
46 | aspectd = st->sample_aspect_ratio.den; | |
47 | ||
48 | if (aspectn == 0 && aspectd == 1) | |
49 | aspectd = 0; // 0:0 means unknown | |
50 | ||
51 | switch (st->codec->field_order) { | |
52 | case AV_FIELD_TB: | |
53 | case AV_FIELD_TT: inter = 't'; break; | |
54 | case AV_FIELD_BT: | |
55 | case AV_FIELD_BB: inter = 'b'; break; | |
56 | default: inter = 'p'; break; | |
57 | } | |
58 | ||
59 | switch (st->codec->pix_fmt) { | |
60 | case AV_PIX_FMT_GRAY8: | |
61 | colorspace = " Cmono"; | |
62 | break; | |
63 | case AV_PIX_FMT_GRAY16: | |
64 | colorspace = " Cmono16"; | |
65 | break; | |
66 | case AV_PIX_FMT_YUV411P: | |
67 | colorspace = " C411 XYSCSS=411"; | |
68 | break; | |
69 | case AV_PIX_FMT_YUV420P: | |
70 | switch (st->codec->chroma_sample_location) { | |
71 | case AVCHROMA_LOC_TOPLEFT: colorspace = " C420paldv XYSCSS=420PALDV"; break; | |
72 | case AVCHROMA_LOC_LEFT: colorspace = " C420mpeg2 XYSCSS=420MPEG2"; break; | |
73 | default: colorspace = " C420jpeg XYSCSS=420JPEG"; break; | |
74 | } | |
75 | break; | |
76 | case AV_PIX_FMT_YUV422P: | |
77 | colorspace = " C422 XYSCSS=422"; | |
78 | break; | |
79 | case AV_PIX_FMT_YUV444P: | |
80 | colorspace = " C444 XYSCSS=444"; | |
81 | break; | |
82 | case AV_PIX_FMT_YUV420P9: | |
83 | colorspace = " C420p9 XYSCSS=420P9"; | |
84 | break; | |
85 | case AV_PIX_FMT_YUV422P9: | |
86 | colorspace = " C422p9 XYSCSS=422P9"; | |
87 | break; | |
88 | case AV_PIX_FMT_YUV444P9: | |
89 | colorspace = " C444p9 XYSCSS=444P9"; | |
90 | break; | |
91 | case AV_PIX_FMT_YUV420P10: | |
92 | colorspace = " C420p10 XYSCSS=420P10"; | |
93 | break; | |
94 | case AV_PIX_FMT_YUV422P10: | |
95 | colorspace = " C422p10 XYSCSS=422P10"; | |
96 | break; | |
97 | case AV_PIX_FMT_YUV444P10: | |
98 | colorspace = " C444p10 XYSCSS=444P10"; | |
99 | break; | |
100 | case AV_PIX_FMT_YUV420P12: | |
101 | colorspace = " C420p12 XYSCSS=420P12"; | |
102 | break; | |
103 | case AV_PIX_FMT_YUV422P12: | |
104 | colorspace = " C422p12 XYSCSS=422P12"; | |
105 | break; | |
106 | case AV_PIX_FMT_YUV444P12: | |
107 | colorspace = " C444p12 XYSCSS=444P12"; | |
108 | break; | |
109 | case AV_PIX_FMT_YUV420P14: | |
110 | colorspace = " C420p14 XYSCSS=420P14"; | |
111 | break; | |
112 | case AV_PIX_FMT_YUV422P14: | |
113 | colorspace = " C422p14 XYSCSS=422P14"; | |
114 | break; | |
115 | case AV_PIX_FMT_YUV444P14: | |
116 | colorspace = " C444p14 XYSCSS=444P14"; | |
117 | break; | |
118 | case AV_PIX_FMT_YUV420P16: | |
119 | colorspace = " C420p16 XYSCSS=420P16"; | |
120 | break; | |
121 | case AV_PIX_FMT_YUV422P16: | |
122 | colorspace = " C422p16 XYSCSS=422P16"; | |
123 | break; | |
124 | case AV_PIX_FMT_YUV444P16: | |
125 | colorspace = " C444p16 XYSCSS=444P16"; | |
126 | break; | |
127 | } | |
128 | ||
129 | /* construct stream header, if this is the first frame */ | |
130 | n = snprintf(buf, Y4M_LINE_MAX, "%s W%d H%d F%d:%d I%c A%d:%d%s\n", | |
131 | Y4M_MAGIC, width, height, raten, rated, inter, | |
132 | aspectn, aspectd, colorspace); | |
133 | ||
134 | return n; | |
135 | } | |
136 | ||
137 | static int yuv4_write_packet(AVFormatContext *s, AVPacket *pkt) | |
138 | { | |
139 | AVStream *st = s->streams[pkt->stream_index]; | |
140 | AVIOContext *pb = s->pb; | |
141 | AVPicture *picture, picture_tmp; | |
142 | int* first_pkt = s->priv_data; | |
143 | int width, height, h_chroma_shift, v_chroma_shift; | |
144 | int i; | |
145 | char buf2[Y4M_LINE_MAX + 1]; | |
146 | char buf1[20]; | |
147 | uint8_t *ptr, *ptr1, *ptr2; | |
148 | ||
149 | memcpy(&picture_tmp, pkt->data, sizeof(AVPicture)); | |
150 | picture = &picture_tmp; | |
151 | ||
152 | /* for the first packet we have to output the header as well */ | |
153 | if (*first_pkt) { | |
154 | *first_pkt = 0; | |
155 | if (yuv4_generate_header(s, buf2) < 0) { | |
156 | av_log(s, AV_LOG_ERROR, | |
157 | "Error. YUV4MPEG stream header write failed.\n"); | |
158 | return AVERROR(EIO); | |
159 | } else { | |
160 | avio_write(pb, buf2, strlen(buf2)); | |
161 | } | |
162 | } | |
163 | ||
164 | /* construct frame header */ | |
165 | ||
166 | snprintf(buf1, sizeof(buf1), "%s\n", Y4M_FRAME_MAGIC); | |
167 | avio_write(pb, buf1, strlen(buf1)); | |
168 | ||
169 | width = st->codec->width; | |
170 | height = st->codec->height; | |
171 | ||
172 | ptr = picture->data[0]; | |
173 | ||
174 | switch (st->codec->pix_fmt) { | |
175 | case AV_PIX_FMT_GRAY8: | |
176 | case AV_PIX_FMT_YUV411P: | |
177 | case AV_PIX_FMT_YUV420P: | |
178 | case AV_PIX_FMT_YUV422P: | |
179 | case AV_PIX_FMT_YUV444P: | |
180 | break; | |
181 | case AV_PIX_FMT_GRAY16: | |
182 | case AV_PIX_FMT_YUV420P9: | |
183 | case AV_PIX_FMT_YUV422P9: | |
184 | case AV_PIX_FMT_YUV444P9: | |
185 | case AV_PIX_FMT_YUV420P10: | |
186 | case AV_PIX_FMT_YUV422P10: | |
187 | case AV_PIX_FMT_YUV444P10: | |
188 | case AV_PIX_FMT_YUV420P12: | |
189 | case AV_PIX_FMT_YUV422P12: | |
190 | case AV_PIX_FMT_YUV444P12: | |
191 | case AV_PIX_FMT_YUV420P14: | |
192 | case AV_PIX_FMT_YUV422P14: | |
193 | case AV_PIX_FMT_YUV444P14: | |
194 | case AV_PIX_FMT_YUV420P16: | |
195 | case AV_PIX_FMT_YUV422P16: | |
196 | case AV_PIX_FMT_YUV444P16: | |
197 | width *= 2; | |
198 | break; | |
199 | default: | |
200 | av_log(s, AV_LOG_ERROR, "The pixel format '%s' is not supported.\n", | |
201 | av_get_pix_fmt_name(st->codec->pix_fmt)); | |
202 | return AVERROR(EINVAL); | |
203 | } | |
204 | ||
205 | for (i = 0; i < height; i++) { | |
206 | avio_write(pb, ptr, width); | |
207 | ptr += picture->linesize[0]; | |
208 | } | |
209 | ||
210 | if (st->codec->pix_fmt != AV_PIX_FMT_GRAY8 && | |
211 | st->codec->pix_fmt != AV_PIX_FMT_GRAY16) { | |
212 | // Adjust for smaller Cb and Cr planes | |
213 | av_pix_fmt_get_chroma_sub_sample(st->codec->pix_fmt, &h_chroma_shift, | |
214 | &v_chroma_shift); | |
215 | width = FF_CEIL_RSHIFT(width, h_chroma_shift); | |
216 | height = FF_CEIL_RSHIFT(height, v_chroma_shift); | |
217 | ||
218 | ptr1 = picture->data[1]; | |
219 | ptr2 = picture->data[2]; | |
220 | for (i = 0; i < height; i++) { /* Cb */ | |
221 | avio_write(pb, ptr1, width); | |
222 | ptr1 += picture->linesize[1]; | |
223 | } | |
224 | for (i = 0; i < height; i++) { /* Cr */ | |
225 | avio_write(pb, ptr2, width); | |
226 | ptr2 += picture->linesize[2]; | |
227 | } | |
228 | } | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | static int yuv4_write_header(AVFormatContext *s) | |
234 | { | |
235 | int *first_pkt = s->priv_data; | |
236 | ||
237 | if (s->nb_streams != 1) | |
238 | return AVERROR(EIO); | |
239 | ||
240 | if (s->streams[0]->codec->codec_id != AV_CODEC_ID_RAWVIDEO) { | |
241 | av_log(s, AV_LOG_ERROR, "ERROR: Only rawvideo supported.\n"); | |
242 | return AVERROR_INVALIDDATA; | |
243 | } | |
244 | ||
245 | switch (s->streams[0]->codec->pix_fmt) { | |
246 | case AV_PIX_FMT_YUV411P: | |
247 | av_log(s, AV_LOG_WARNING, "Warning: generating rarely used 4:1:1 YUV " | |
248 | "stream, some mjpegtools might not work.\n"); | |
249 | break; | |
250 | case AV_PIX_FMT_GRAY8: | |
251 | case AV_PIX_FMT_GRAY16: | |
252 | case AV_PIX_FMT_YUV420P: | |
253 | case AV_PIX_FMT_YUV422P: | |
254 | case AV_PIX_FMT_YUV444P: | |
255 | break; | |
256 | case AV_PIX_FMT_YUV420P9: | |
257 | case AV_PIX_FMT_YUV422P9: | |
258 | case AV_PIX_FMT_YUV444P9: | |
259 | case AV_PIX_FMT_YUV420P10: | |
260 | case AV_PIX_FMT_YUV422P10: | |
261 | case AV_PIX_FMT_YUV444P10: | |
262 | case AV_PIX_FMT_YUV420P12: | |
263 | case AV_PIX_FMT_YUV422P12: | |
264 | case AV_PIX_FMT_YUV444P12: | |
265 | case AV_PIX_FMT_YUV420P14: | |
266 | case AV_PIX_FMT_YUV422P14: | |
267 | case AV_PIX_FMT_YUV444P14: | |
268 | case AV_PIX_FMT_YUV420P16: | |
269 | case AV_PIX_FMT_YUV422P16: | |
270 | case AV_PIX_FMT_YUV444P16: | |
f6fa7814 | 271 | if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) { |
2ba45a60 DM |
272 | av_log(s, AV_LOG_ERROR, "'%s' is not a official yuv4mpegpipe pixel format. " |
273 | "Use '-strict -1' to encode to this pixel format.\n", | |
274 | av_get_pix_fmt_name(s->streams[0]->codec->pix_fmt)); | |
275 | return AVERROR(EINVAL); | |
276 | } | |
277 | av_log(s, AV_LOG_WARNING, "Warning: generating non standard YUV stream. " | |
278 | "Mjpegtools will not work.\n"); | |
279 | break; | |
280 | default: | |
281 | av_log(s, AV_LOG_ERROR, "ERROR: yuv4mpeg can only handle " | |
282 | "yuv444p, yuv422p, yuv420p, yuv411p and gray8 pixel formats. " | |
283 | "And using 'strict -1' also yuv444p9, yuv422p9, yuv420p9, " | |
284 | "yuv444p10, yuv422p10, yuv420p10, " | |
285 | "yuv444p12, yuv422p12, yuv420p12, " | |
286 | "yuv444p14, yuv422p14, yuv420p14, " | |
287 | "yuv444p16, yuv422p16, yuv420p16 " | |
288 | "and gray16 pixel formats. " | |
289 | "Use -pix_fmt to select one.\n"); | |
290 | return AVERROR(EIO); | |
291 | } | |
292 | ||
293 | *first_pkt = 1; | |
294 | return 0; | |
295 | } | |
296 | ||
297 | AVOutputFormat ff_yuv4mpegpipe_muxer = { | |
298 | .name = "yuv4mpegpipe", | |
299 | .long_name = NULL_IF_CONFIG_SMALL("YUV4MPEG pipe"), | |
300 | .extensions = "y4m", | |
301 | .priv_data_size = sizeof(int), | |
302 | .audio_codec = AV_CODEC_ID_NONE, | |
303 | .video_codec = AV_CODEC_ID_RAWVIDEO, | |
304 | .write_header = yuv4_write_header, | |
305 | .write_packet = yuv4_write_packet, | |
306 | .flags = AVFMT_RAWPICTURE, | |
307 | }; |