3 * Copyright (c) 2001, 2002, 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
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.
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.
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
22 #include "libavutil/pixdesc.h"
27 #define Y4M_LINE_MAX 256
29 static int yuv4_write_header(AVFormatContext *s)
32 AVIOContext *pb = s->pb;
34 int raten, rated, aspectn, aspectd, n;
36 const char *colorspace = "";
37 const char *colorrange = "";
38 char buf[Y4M_LINE_MAX + 1];
42 width = st->codecpar->width;
43 height = st->codecpar->height;
44 field_order = st->codecpar->field_order;
46 // TODO: should be avg_frame_rate
47 av_reduce(&raten, &rated, st->time_base.den,
48 st->time_base.num, (1UL << 31) - 1);
50 aspectn = st->sample_aspect_ratio.num;
51 aspectd = st->sample_aspect_ratio.den;
53 if (aspectn == 0 && aspectd == 1)
54 aspectd = 0; // 0:0 means unknown
57 FF_DISABLE_DEPRECATION_WARNINGS
58 if (field_order != st->codec->field_order && st->codec->field_order != AV_FIELD_UNKNOWN)
59 field_order = st->codec->field_order;
60 FF_ENABLE_DEPRECATION_WARNINGS
63 switch(st->codecpar->color_range) {
64 case AVCOL_RANGE_MPEG:
65 colorrange = " XCOLORRANGE=LIMITED";
67 case AVCOL_RANGE_JPEG:
68 colorrange = " XCOLORRANGE=FULL";
74 switch (field_order) {
76 case AV_FIELD_TT: inter = 't'; break;
78 case AV_FIELD_BB: inter = 'b'; break;
79 default: inter = 'p'; break;
82 switch (st->codecpar->format) {
83 case AV_PIX_FMT_GRAY8:
84 colorspace = " Cmono";
86 case AV_PIX_FMT_GRAY9:
87 colorspace = " Cmono9";
89 case AV_PIX_FMT_GRAY10:
90 colorspace = " Cmono10";
92 case AV_PIX_FMT_GRAY12:
93 colorspace = " Cmono12";
95 case AV_PIX_FMT_GRAY16:
96 colorspace = " Cmono16";
98 case AV_PIX_FMT_YUV411P:
99 colorspace = " C411 XYSCSS=411";
101 case AV_PIX_FMT_YUVJ420P:
102 colorspace = " C420jpeg XYSCSS=420JPEG";
103 colorrange = " XCOLORRANGE=FULL";
105 case AV_PIX_FMT_YUVJ422P:
106 colorspace = " C422 XYSCSS=422";
107 colorrange = " XCOLORRANGE=FULL";
109 case AV_PIX_FMT_YUVJ444P:
110 colorspace = " C444 XYSCSS=444";
111 colorrange = " XCOLORRANGE=FULL";
113 case AV_PIX_FMT_YUV420P:
114 switch (st->codecpar->chroma_location) {
115 case AVCHROMA_LOC_TOPLEFT: colorspace = " C420paldv XYSCSS=420PALDV"; break;
116 case AVCHROMA_LOC_LEFT: colorspace = " C420mpeg2 XYSCSS=420MPEG2"; break;
117 default: colorspace = " C420jpeg XYSCSS=420JPEG"; break;
120 case AV_PIX_FMT_YUV422P:
121 colorspace = " C422 XYSCSS=422";
123 case AV_PIX_FMT_YUV444P:
124 colorspace = " C444 XYSCSS=444";
126 case AV_PIX_FMT_YUV420P9:
127 colorspace = " C420p9 XYSCSS=420P9";
129 case AV_PIX_FMT_YUV422P9:
130 colorspace = " C422p9 XYSCSS=422P9";
132 case AV_PIX_FMT_YUV444P9:
133 colorspace = " C444p9 XYSCSS=444P9";
135 case AV_PIX_FMT_YUV420P10:
136 colorspace = " C420p10 XYSCSS=420P10";
138 case AV_PIX_FMT_YUV422P10:
139 colorspace = " C422p10 XYSCSS=422P10";
141 case AV_PIX_FMT_YUV444P10:
142 colorspace = " C444p10 XYSCSS=444P10";
144 case AV_PIX_FMT_YUV420P12:
145 colorspace = " C420p12 XYSCSS=420P12";
147 case AV_PIX_FMT_YUV422P12:
148 colorspace = " C422p12 XYSCSS=422P12";
150 case AV_PIX_FMT_YUV444P12:
151 colorspace = " C444p12 XYSCSS=444P12";
153 case AV_PIX_FMT_YUV420P14:
154 colorspace = " C420p14 XYSCSS=420P14";
156 case AV_PIX_FMT_YUV422P14:
157 colorspace = " C422p14 XYSCSS=422P14";
159 case AV_PIX_FMT_YUV444P14:
160 colorspace = " C444p14 XYSCSS=444P14";
162 case AV_PIX_FMT_YUV420P16:
163 colorspace = " C420p16 XYSCSS=420P16";
165 case AV_PIX_FMT_YUV422P16:
166 colorspace = " C422p16 XYSCSS=422P16";
168 case AV_PIX_FMT_YUV444P16:
169 colorspace = " C444p16 XYSCSS=444P16";
173 /* construct stream header, if this is the first frame */
174 n = snprintf(buf, Y4M_LINE_MAX, "%s W%d H%d F%d:%d I%c A%d:%d%s%s\n",
175 Y4M_MAGIC, width, height, raten, rated, inter,
176 aspectn, aspectd, colorspace, colorrange);
179 av_log(s, AV_LOG_ERROR,
180 "Error. YUV4MPEG stream header write failed.\n");
184 avio_write(pb, buf, strlen(buf));
190 static int yuv4_write_packet(AVFormatContext *s, AVPacket *pkt)
192 AVStream *st = s->streams[pkt->stream_index];
193 AVIOContext *pb = s->pb;
195 int width, height, h_chroma_shift, v_chroma_shift;
197 uint8_t *ptr, *ptr1, *ptr2;
199 frame = (AVFrame *)pkt->data;
201 /* construct frame header */
203 avio_printf(s->pb, "%s\n", Y4M_FRAME_MAGIC);
205 width = st->codecpar->width;
206 height = st->codecpar->height;
208 ptr = frame->data[0];
210 switch (st->codecpar->format) {
211 case AV_PIX_FMT_GRAY8:
212 case AV_PIX_FMT_YUV411P:
213 case AV_PIX_FMT_YUV420P:
214 case AV_PIX_FMT_YUV422P:
215 case AV_PIX_FMT_YUV444P:
216 // TODO: remove YUVJ pixel formats when they are completely removed from the codebase.
217 case AV_PIX_FMT_YUVJ420P:
218 case AV_PIX_FMT_YUVJ422P:
219 case AV_PIX_FMT_YUVJ444P:
221 case AV_PIX_FMT_GRAY9:
222 case AV_PIX_FMT_GRAY10:
223 case AV_PIX_FMT_GRAY12:
224 case AV_PIX_FMT_GRAY16:
225 case AV_PIX_FMT_YUV420P9:
226 case AV_PIX_FMT_YUV422P9:
227 case AV_PIX_FMT_YUV444P9:
228 case AV_PIX_FMT_YUV420P10:
229 case AV_PIX_FMT_YUV422P10:
230 case AV_PIX_FMT_YUV444P10:
231 case AV_PIX_FMT_YUV420P12:
232 case AV_PIX_FMT_YUV422P12:
233 case AV_PIX_FMT_YUV444P12:
234 case AV_PIX_FMT_YUV420P14:
235 case AV_PIX_FMT_YUV422P14:
236 case AV_PIX_FMT_YUV444P14:
237 case AV_PIX_FMT_YUV420P16:
238 case AV_PIX_FMT_YUV422P16:
239 case AV_PIX_FMT_YUV444P16:
243 av_log(s, AV_LOG_ERROR, "The pixel format '%s' is not supported.\n",
244 av_get_pix_fmt_name(st->codecpar->format));
245 return AVERROR(EINVAL);
248 for (i = 0; i < height; i++) {
249 avio_write(pb, ptr, width);
250 ptr += frame->linesize[0];
253 if (st->codecpar->format != AV_PIX_FMT_GRAY8 && st->codecpar->format != AV_PIX_FMT_GRAY9 &&
254 st->codecpar->format != AV_PIX_FMT_GRAY10 && st->codecpar->format != AV_PIX_FMT_GRAY12 &&
255 st->codecpar->format != AV_PIX_FMT_GRAY16) {
256 // Adjust for smaller Cb and Cr planes
257 av_pix_fmt_get_chroma_sub_sample(st->codecpar->format, &h_chroma_shift,
259 // Shift right, rounding up
260 width = AV_CEIL_RSHIFT(width, h_chroma_shift);
261 height = AV_CEIL_RSHIFT(height, v_chroma_shift);
263 ptr1 = frame->data[1];
264 ptr2 = frame->data[2];
265 for (i = 0; i < height; i++) { /* Cb */
266 avio_write(pb, ptr1, width);
267 ptr1 += frame->linesize[1];
269 for (i = 0; i < height; i++) { /* Cr */
270 avio_write(pb, ptr2, width);
271 ptr2 += frame->linesize[2];
278 static int yuv4_init(AVFormatContext *s)
280 if (s->nb_streams != 1)
283 if (s->streams[0]->codecpar->codec_id != AV_CODEC_ID_WRAPPED_AVFRAME) {
284 av_log(s, AV_LOG_ERROR, "ERROR: Codec not supported.\n");
285 return AVERROR_INVALIDDATA;
288 switch (s->streams[0]->codecpar->format) {
289 case AV_PIX_FMT_YUV411P:
290 av_log(s, AV_LOG_WARNING, "Warning: generating rarely used 4:1:1 YUV "
291 "stream, some mjpegtools might not work.\n");
293 case AV_PIX_FMT_GRAY8:
294 case AV_PIX_FMT_YUV420P:
295 case AV_PIX_FMT_YUV422P:
296 case AV_PIX_FMT_YUV444P:
297 // TODO: remove YUVJ pixel formats when they are completely removed from the codebase.
298 case AV_PIX_FMT_YUVJ420P:
299 case AV_PIX_FMT_YUVJ422P:
300 case AV_PIX_FMT_YUVJ444P:
302 case AV_PIX_FMT_GRAY9:
303 case AV_PIX_FMT_GRAY10:
304 case AV_PIX_FMT_GRAY12:
305 case AV_PIX_FMT_GRAY16:
306 case AV_PIX_FMT_YUV420P9:
307 case AV_PIX_FMT_YUV422P9:
308 case AV_PIX_FMT_YUV444P9:
309 case AV_PIX_FMT_YUV420P10:
310 case AV_PIX_FMT_YUV422P10:
311 case AV_PIX_FMT_YUV444P10:
312 case AV_PIX_FMT_YUV420P12:
313 case AV_PIX_FMT_YUV422P12:
314 case AV_PIX_FMT_YUV444P12:
315 case AV_PIX_FMT_YUV420P14:
316 case AV_PIX_FMT_YUV422P14:
317 case AV_PIX_FMT_YUV444P14:
318 case AV_PIX_FMT_YUV420P16:
319 case AV_PIX_FMT_YUV422P16:
320 case AV_PIX_FMT_YUV444P16:
321 if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
322 av_log(s, AV_LOG_ERROR, "'%s' is not an official yuv4mpegpipe pixel format. "
323 "Use '-strict -1' to encode to this pixel format.\n",
324 av_get_pix_fmt_name(s->streams[0]->codecpar->format));
325 return AVERROR(EINVAL);
327 av_log(s, AV_LOG_WARNING, "Warning: generating non standard YUV stream. "
328 "Mjpegtools will not work.\n");
331 av_log(s, AV_LOG_ERROR, "ERROR: yuv4mpeg can only handle "
332 "yuv444p, yuv422p, yuv420p, yuv411p and gray8 pixel formats. "
333 "And using 'strict -1' also yuv444p9, yuv422p9, yuv420p9, "
334 "yuv444p10, yuv422p10, yuv420p10, "
335 "yuv444p12, yuv422p12, yuv420p12, "
336 "yuv444p14, yuv422p14, yuv420p14, "
337 "yuv444p16, yuv422p16, yuv420p16, "
338 "gray9, gray10, gray12 "
339 "and gray16 pixel formats. "
340 "Use -pix_fmt to select one.\n");
347 AVOutputFormat ff_yuv4mpegpipe_muxer = {
348 .name = "yuv4mpegpipe",
349 .long_name = NULL_IF_CONFIG_SMALL("YUV4MPEG pipe"),
351 .audio_codec = AV_CODEC_ID_NONE,
352 .video_codec = AV_CODEC_ID_WRAPPED_AVFRAME,
354 .write_header = yuv4_write_header,
355 .write_packet = yuv4_write_packet,