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 static int yuv4_write_header(AVFormatContext *s)
30 AVIOContext *pb = s->pb;
32 int raten, rated, aspectn, aspectd, ret;
34 const char *colorspace = "";
35 const char *colorrange = "";
39 width = st->codecpar->width;
40 height = st->codecpar->height;
41 field_order = st->codecpar->field_order;
43 // TODO: should be avg_frame_rate
44 av_reduce(&raten, &rated, st->time_base.den,
45 st->time_base.num, (1UL << 31) - 1);
47 aspectn = st->sample_aspect_ratio.num;
48 aspectd = st->sample_aspect_ratio.den;
50 if (aspectn == 0 && aspectd == 1)
51 aspectd = 0; // 0:0 means unknown
53 switch(st->codecpar->color_range) {
54 case AVCOL_RANGE_MPEG:
55 colorrange = " XCOLORRANGE=LIMITED";
57 case AVCOL_RANGE_JPEG:
58 colorrange = " XCOLORRANGE=FULL";
64 switch (field_order) {
66 case AV_FIELD_TT: inter = 't'; break;
68 case AV_FIELD_BB: inter = 'b'; break;
69 default: inter = 'p'; break;
72 switch (st->codecpar->format) {
73 case AV_PIX_FMT_GRAY8:
74 colorspace = " Cmono";
76 case AV_PIX_FMT_GRAY9:
77 colorspace = " Cmono9";
79 case AV_PIX_FMT_GRAY10:
80 colorspace = " Cmono10";
82 case AV_PIX_FMT_GRAY12:
83 colorspace = " Cmono12";
85 case AV_PIX_FMT_GRAY16:
86 colorspace = " Cmono16";
88 case AV_PIX_FMT_YUV411P:
89 colorspace = " C411 XYSCSS=411";
91 case AV_PIX_FMT_YUVJ420P:
92 colorspace = " C420jpeg XYSCSS=420JPEG";
93 colorrange = " XCOLORRANGE=FULL";
95 case AV_PIX_FMT_YUVJ422P:
96 colorspace = " C422 XYSCSS=422";
97 colorrange = " XCOLORRANGE=FULL";
99 case AV_PIX_FMT_YUVJ444P:
100 colorspace = " C444 XYSCSS=444";
101 colorrange = " XCOLORRANGE=FULL";
103 case AV_PIX_FMT_YUV420P:
104 switch (st->codecpar->chroma_location) {
105 case AVCHROMA_LOC_TOPLEFT: colorspace = " C420paldv XYSCSS=420PALDV"; break;
106 case AVCHROMA_LOC_LEFT: colorspace = " C420mpeg2 XYSCSS=420MPEG2"; break;
107 default: colorspace = " C420jpeg XYSCSS=420JPEG"; break;
110 case AV_PIX_FMT_YUV422P:
111 colorspace = " C422 XYSCSS=422";
113 case AV_PIX_FMT_YUV444P:
114 colorspace = " C444 XYSCSS=444";
116 case AV_PIX_FMT_YUV420P9:
117 colorspace = " C420p9 XYSCSS=420P9";
119 case AV_PIX_FMT_YUV422P9:
120 colorspace = " C422p9 XYSCSS=422P9";
122 case AV_PIX_FMT_YUV444P9:
123 colorspace = " C444p9 XYSCSS=444P9";
125 case AV_PIX_FMT_YUV420P10:
126 colorspace = " C420p10 XYSCSS=420P10";
128 case AV_PIX_FMT_YUV422P10:
129 colorspace = " C422p10 XYSCSS=422P10";
131 case AV_PIX_FMT_YUV444P10:
132 colorspace = " C444p10 XYSCSS=444P10";
134 case AV_PIX_FMT_YUV420P12:
135 colorspace = " C420p12 XYSCSS=420P12";
137 case AV_PIX_FMT_YUV422P12:
138 colorspace = " C422p12 XYSCSS=422P12";
140 case AV_PIX_FMT_YUV444P12:
141 colorspace = " C444p12 XYSCSS=444P12";
143 case AV_PIX_FMT_YUV420P14:
144 colorspace = " C420p14 XYSCSS=420P14";
146 case AV_PIX_FMT_YUV422P14:
147 colorspace = " C422p14 XYSCSS=422P14";
149 case AV_PIX_FMT_YUV444P14:
150 colorspace = " C444p14 XYSCSS=444P14";
152 case AV_PIX_FMT_YUV420P16:
153 colorspace = " C420p16 XYSCSS=420P16";
155 case AV_PIX_FMT_YUV422P16:
156 colorspace = " C422p16 XYSCSS=422P16";
158 case AV_PIX_FMT_YUV444P16:
159 colorspace = " C444p16 XYSCSS=444P16";
163 ret = avio_printf(pb, Y4M_MAGIC " W%d H%d F%d:%d I%c A%d:%d%s%s\n",
164 width, height, raten, rated, inter,
165 aspectn, aspectd, colorspace, colorrange);
167 av_log(s, AV_LOG_ERROR,
168 "Error. YUV4MPEG stream header write failed.\n");
176 static int yuv4_write_packet(AVFormatContext *s, AVPacket *pkt)
178 AVStream *st = s->streams[pkt->stream_index];
179 AVIOContext *pb = s->pb;
180 const AVFrame *frame = (const AVFrame *)pkt->data;
181 int width, height, h_chroma_shift, v_chroma_shift;
183 const uint8_t *ptr, *ptr1, *ptr2;
185 /* construct frame header */
187 avio_printf(s->pb, Y4M_FRAME_MAGIC "\n");
189 width = st->codecpar->width;
190 height = st->codecpar->height;
192 ptr = frame->data[0];
194 switch (st->codecpar->format) {
195 case AV_PIX_FMT_GRAY8:
196 case AV_PIX_FMT_YUV411P:
197 case AV_PIX_FMT_YUV420P:
198 case AV_PIX_FMT_YUV422P:
199 case AV_PIX_FMT_YUV444P:
200 // TODO: remove YUVJ pixel formats when they are completely removed from the codebase.
201 case AV_PIX_FMT_YUVJ420P:
202 case AV_PIX_FMT_YUVJ422P:
203 case AV_PIX_FMT_YUVJ444P:
205 case AV_PIX_FMT_GRAY9:
206 case AV_PIX_FMT_GRAY10:
207 case AV_PIX_FMT_GRAY12:
208 case AV_PIX_FMT_GRAY16:
209 case AV_PIX_FMT_YUV420P9:
210 case AV_PIX_FMT_YUV422P9:
211 case AV_PIX_FMT_YUV444P9:
212 case AV_PIX_FMT_YUV420P10:
213 case AV_PIX_FMT_YUV422P10:
214 case AV_PIX_FMT_YUV444P10:
215 case AV_PIX_FMT_YUV420P12:
216 case AV_PIX_FMT_YUV422P12:
217 case AV_PIX_FMT_YUV444P12:
218 case AV_PIX_FMT_YUV420P14:
219 case AV_PIX_FMT_YUV422P14:
220 case AV_PIX_FMT_YUV444P14:
221 case AV_PIX_FMT_YUV420P16:
222 case AV_PIX_FMT_YUV422P16:
223 case AV_PIX_FMT_YUV444P16:
227 av_log(s, AV_LOG_ERROR, "The pixel format '%s' is not supported.\n",
228 av_get_pix_fmt_name(st->codecpar->format));
229 return AVERROR(EINVAL);
232 for (i = 0; i < height; i++) {
233 avio_write(pb, ptr, width);
234 ptr += frame->linesize[0];
237 if (st->codecpar->format != AV_PIX_FMT_GRAY8 && st->codecpar->format != AV_PIX_FMT_GRAY9 &&
238 st->codecpar->format != AV_PIX_FMT_GRAY10 && st->codecpar->format != AV_PIX_FMT_GRAY12 &&
239 st->codecpar->format != AV_PIX_FMT_GRAY16) {
240 // Adjust for smaller Cb and Cr planes
241 av_pix_fmt_get_chroma_sub_sample(st->codecpar->format, &h_chroma_shift,
243 // Shift right, rounding up
244 width = AV_CEIL_RSHIFT(width, h_chroma_shift);
245 height = AV_CEIL_RSHIFT(height, v_chroma_shift);
247 ptr1 = frame->data[1];
248 ptr2 = frame->data[2];
249 for (i = 0; i < height; i++) { /* Cb */
250 avio_write(pb, ptr1, width);
251 ptr1 += frame->linesize[1];
253 for (i = 0; i < height; i++) { /* Cr */
254 avio_write(pb, ptr2, width);
255 ptr2 += frame->linesize[2];
262 static int yuv4_init(AVFormatContext *s)
264 if (s->nb_streams != 1)
267 if (s->streams[0]->codecpar->codec_id != AV_CODEC_ID_WRAPPED_AVFRAME) {
268 av_log(s, AV_LOG_ERROR, "ERROR: Codec not supported.\n");
269 return AVERROR_INVALIDDATA;
272 switch (s->streams[0]->codecpar->format) {
273 case AV_PIX_FMT_YUV411P:
274 av_log(s, AV_LOG_WARNING, "Warning: generating rarely used 4:1:1 YUV "
275 "stream, some mjpegtools might not work.\n");
277 case AV_PIX_FMT_GRAY8:
278 case AV_PIX_FMT_YUV420P:
279 case AV_PIX_FMT_YUV422P:
280 case AV_PIX_FMT_YUV444P:
281 // TODO: remove YUVJ pixel formats when they are completely removed from the codebase.
282 case AV_PIX_FMT_YUVJ420P:
283 case AV_PIX_FMT_YUVJ422P:
284 case AV_PIX_FMT_YUVJ444P:
286 case AV_PIX_FMT_GRAY9:
287 case AV_PIX_FMT_GRAY10:
288 case AV_PIX_FMT_GRAY12:
289 case AV_PIX_FMT_GRAY16:
290 case AV_PIX_FMT_YUV420P9:
291 case AV_PIX_FMT_YUV422P9:
292 case AV_PIX_FMT_YUV444P9:
293 case AV_PIX_FMT_YUV420P10:
294 case AV_PIX_FMT_YUV422P10:
295 case AV_PIX_FMT_YUV444P10:
296 case AV_PIX_FMT_YUV420P12:
297 case AV_PIX_FMT_YUV422P12:
298 case AV_PIX_FMT_YUV444P12:
299 case AV_PIX_FMT_YUV420P14:
300 case AV_PIX_FMT_YUV422P14:
301 case AV_PIX_FMT_YUV444P14:
302 case AV_PIX_FMT_YUV420P16:
303 case AV_PIX_FMT_YUV422P16:
304 case AV_PIX_FMT_YUV444P16:
305 if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) {
306 av_log(s, AV_LOG_ERROR, "'%s' is not an official yuv4mpegpipe pixel format. "
307 "Use '-strict -1' to encode to this pixel format.\n",
308 av_get_pix_fmt_name(s->streams[0]->codecpar->format));
309 return AVERROR(EINVAL);
311 av_log(s, AV_LOG_WARNING, "Warning: generating non standard YUV stream. "
312 "Mjpegtools will not work.\n");
315 av_log(s, AV_LOG_ERROR, "ERROR: yuv4mpeg can only handle "
316 "yuv444p, yuv422p, yuv420p, yuv411p and gray8 pixel formats. "
317 "And using 'strict -1' also yuv444p9, yuv422p9, yuv420p9, "
318 "yuv444p10, yuv422p10, yuv420p10, "
319 "yuv444p12, yuv422p12, yuv420p12, "
320 "yuv444p14, yuv422p14, yuv420p14, "
321 "yuv444p16, yuv422p16, yuv420p16, "
322 "gray9, gray10, gray12 "
323 "and gray16 pixel formats. "
324 "Use -pix_fmt to select one.\n");
331 AVOutputFormat ff_yuv4mpegpipe_muxer = {
332 .name = "yuv4mpegpipe",
333 .long_name = NULL_IF_CONFIG_SMALL("YUV4MPEG pipe"),
335 .audio_codec = AV_CODEC_ID_NONE,
336 .video_codec = AV_CODEC_ID_WRAPPED_AVFRAME,
338 .write_header = yuv4_write_header,
339 .write_packet = yuv4_write_packet,