| /* |
| * YUV4MPEG muxer |
| * Copyright (c) 2001, 2002, 2003 Fabrice Bellard |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/pixdesc.h" |
| #include "avformat.h" |
| #include "internal.h" |
| #include "yuv4mpeg.h" |
| |
| #define Y4M_LINE_MAX 256 |
| |
| static int yuv4_generate_header(AVFormatContext *s, char* buf) |
| { |
| AVStream *st; |
| int width, height; |
| int raten, rated, aspectn, aspectd, n; |
| char inter; |
| const char *colorspace = ""; |
| const char *colorrange = ""; |
| int field_order; |
| |
| st = s->streams[0]; |
| width = st->codecpar->width; |
| height = st->codecpar->height; |
| field_order = st->codecpar->field_order; |
| |
| // TODO: should be avg_frame_rate |
| av_reduce(&raten, &rated, st->time_base.den, |
| st->time_base.num, (1UL << 31) - 1); |
| |
| aspectn = st->sample_aspect_ratio.num; |
| aspectd = st->sample_aspect_ratio.den; |
| |
| if (aspectn == 0 && aspectd == 1) |
| aspectd = 0; // 0:0 means unknown |
| |
| #if FF_API_LAVF_AVCTX |
| FF_DISABLE_DEPRECATION_WARNINGS |
| if (field_order != st->codec->field_order && st->codec->field_order != AV_FIELD_UNKNOWN) |
| field_order = st->codec->field_order; |
| FF_ENABLE_DEPRECATION_WARNINGS |
| #endif |
| |
| switch(st->codecpar->color_range) { |
| case AVCOL_RANGE_MPEG: |
| colorrange = " XCOLORRANGE=LIMITED"; |
| break; |
| case AVCOL_RANGE_JPEG: |
| colorrange = " XCOLORRANGE=FULL"; |
| break; |
| default: |
| break; |
| } |
| |
| switch (field_order) { |
| case AV_FIELD_TB: |
| case AV_FIELD_TT: inter = 't'; break; |
| case AV_FIELD_BT: |
| case AV_FIELD_BB: inter = 'b'; break; |
| default: inter = 'p'; break; |
| } |
| |
| switch (st->codecpar->format) { |
| case AV_PIX_FMT_GRAY8: |
| colorspace = " Cmono"; |
| break; |
| case AV_PIX_FMT_GRAY9: |
| colorspace = " Cmono9"; |
| break; |
| case AV_PIX_FMT_GRAY10: |
| colorspace = " Cmono10"; |
| break; |
| case AV_PIX_FMT_GRAY12: |
| colorspace = " Cmono12"; |
| break; |
| case AV_PIX_FMT_GRAY16: |
| colorspace = " Cmono16"; |
| break; |
| case AV_PIX_FMT_YUV411P: |
| colorspace = " C411 XYSCSS=411"; |
| break; |
| case AV_PIX_FMT_YUVJ420P: |
| colorspace = " C420jpeg XYSCSS=420JPEG"; |
| colorrange = " XCOLORRANGE=FULL"; |
| break; |
| case AV_PIX_FMT_YUVJ422P: |
| colorspace = " C422 XYSCSS=422"; |
| colorrange = " XCOLORRANGE=FULL"; |
| break; |
| case AV_PIX_FMT_YUVJ444P: |
| colorspace = " C444 XYSCSS=444"; |
| colorrange = " XCOLORRANGE=FULL"; |
| break; |
| case AV_PIX_FMT_YUV420P: |
| switch (st->codecpar->chroma_location) { |
| case AVCHROMA_LOC_TOPLEFT: colorspace = " C420paldv XYSCSS=420PALDV"; break; |
| case AVCHROMA_LOC_LEFT: colorspace = " C420mpeg2 XYSCSS=420MPEG2"; break; |
| default: colorspace = " C420jpeg XYSCSS=420JPEG"; break; |
| } |
| break; |
| case AV_PIX_FMT_YUV422P: |
| colorspace = " C422 XYSCSS=422"; |
| break; |
| case AV_PIX_FMT_YUV444P: |
| colorspace = " C444 XYSCSS=444"; |
| break; |
| case AV_PIX_FMT_YUV420P9: |
| colorspace = " C420p9 XYSCSS=420P9"; |
| break; |
| case AV_PIX_FMT_YUV422P9: |
| colorspace = " C422p9 XYSCSS=422P9"; |
| break; |
| case AV_PIX_FMT_YUV444P9: |
| colorspace = " C444p9 XYSCSS=444P9"; |
| break; |
| case AV_PIX_FMT_YUV420P10: |
| colorspace = " C420p10 XYSCSS=420P10"; |
| break; |
| case AV_PIX_FMT_YUV422P10: |
| colorspace = " C422p10 XYSCSS=422P10"; |
| break; |
| case AV_PIX_FMT_YUV444P10: |
| colorspace = " C444p10 XYSCSS=444P10"; |
| break; |
| case AV_PIX_FMT_YUV420P12: |
| colorspace = " C420p12 XYSCSS=420P12"; |
| break; |
| case AV_PIX_FMT_YUV422P12: |
| colorspace = " C422p12 XYSCSS=422P12"; |
| break; |
| case AV_PIX_FMT_YUV444P12: |
| colorspace = " C444p12 XYSCSS=444P12"; |
| break; |
| case AV_PIX_FMT_YUV420P14: |
| colorspace = " C420p14 XYSCSS=420P14"; |
| break; |
| case AV_PIX_FMT_YUV422P14: |
| colorspace = " C422p14 XYSCSS=422P14"; |
| break; |
| case AV_PIX_FMT_YUV444P14: |
| colorspace = " C444p14 XYSCSS=444P14"; |
| break; |
| case AV_PIX_FMT_YUV420P16: |
| colorspace = " C420p16 XYSCSS=420P16"; |
| break; |
| case AV_PIX_FMT_YUV422P16: |
| colorspace = " C422p16 XYSCSS=422P16"; |
| break; |
| case AV_PIX_FMT_YUV444P16: |
| colorspace = " C444p16 XYSCSS=444P16"; |
| break; |
| } |
| |
| /* construct stream header, if this is the first frame */ |
| n = snprintf(buf, Y4M_LINE_MAX, "%s W%d H%d F%d:%d I%c A%d:%d%s%s\n", |
| Y4M_MAGIC, width, height, raten, rated, inter, |
| aspectn, aspectd, colorspace, colorrange); |
| |
| return n; |
| } |
| |
| |
| static int yuv4_write_packet(AVFormatContext *s, AVPacket *pkt) |
| { |
| AVStream *st = s->streams[pkt->stream_index]; |
| AVIOContext *pb = s->pb; |
| AVFrame *frame; |
| int* first_pkt = s->priv_data; |
| int width, height, h_chroma_shift, v_chroma_shift; |
| int i; |
| char buf2[Y4M_LINE_MAX + 1]; |
| uint8_t *ptr, *ptr1, *ptr2; |
| |
| frame = (AVFrame *)pkt->data; |
| |
| /* for the first packet we have to output the header as well */ |
| if (*first_pkt) { |
| *first_pkt = 0; |
| if (yuv4_generate_header(s, buf2) < 0) { |
| av_log(s, AV_LOG_ERROR, |
| "Error. YUV4MPEG stream header write failed.\n"); |
| return AVERROR(EIO); |
| } else { |
| avio_write(pb, buf2, strlen(buf2)); |
| } |
| } |
| |
| /* construct frame header */ |
| |
| avio_printf(s->pb, "%s\n", Y4M_FRAME_MAGIC); |
| |
| width = st->codecpar->width; |
| height = st->codecpar->height; |
| |
| ptr = frame->data[0]; |
| |
| switch (st->codecpar->format) { |
| case AV_PIX_FMT_GRAY8: |
| case AV_PIX_FMT_YUV411P: |
| case AV_PIX_FMT_YUV420P: |
| case AV_PIX_FMT_YUV422P: |
| case AV_PIX_FMT_YUV444P: |
| // TODO: remove YUVJ pixel formats when they are completely removed from the codebase. |
| case AV_PIX_FMT_YUVJ420P: |
| case AV_PIX_FMT_YUVJ422P: |
| case AV_PIX_FMT_YUVJ444P: |
| break; |
| case AV_PIX_FMT_GRAY9: |
| case AV_PIX_FMT_GRAY10: |
| case AV_PIX_FMT_GRAY12: |
| case AV_PIX_FMT_GRAY16: |
| case AV_PIX_FMT_YUV420P9: |
| case AV_PIX_FMT_YUV422P9: |
| case AV_PIX_FMT_YUV444P9: |
| case AV_PIX_FMT_YUV420P10: |
| case AV_PIX_FMT_YUV422P10: |
| case AV_PIX_FMT_YUV444P10: |
| case AV_PIX_FMT_YUV420P12: |
| case AV_PIX_FMT_YUV422P12: |
| case AV_PIX_FMT_YUV444P12: |
| case AV_PIX_FMT_YUV420P14: |
| case AV_PIX_FMT_YUV422P14: |
| case AV_PIX_FMT_YUV444P14: |
| case AV_PIX_FMT_YUV420P16: |
| case AV_PIX_FMT_YUV422P16: |
| case AV_PIX_FMT_YUV444P16: |
| width *= 2; |
| break; |
| default: |
| av_log(s, AV_LOG_ERROR, "The pixel format '%s' is not supported.\n", |
| av_get_pix_fmt_name(st->codecpar->format)); |
| return AVERROR(EINVAL); |
| } |
| |
| for (i = 0; i < height; i++) { |
| avio_write(pb, ptr, width); |
| ptr += frame->linesize[0]; |
| } |
| |
| if (st->codecpar->format != AV_PIX_FMT_GRAY8 && st->codecpar->format != AV_PIX_FMT_GRAY9 && |
| st->codecpar->format != AV_PIX_FMT_GRAY10 && st->codecpar->format != AV_PIX_FMT_GRAY12 && |
| st->codecpar->format != AV_PIX_FMT_GRAY16) { |
| // Adjust for smaller Cb and Cr planes |
| av_pix_fmt_get_chroma_sub_sample(st->codecpar->format, &h_chroma_shift, |
| &v_chroma_shift); |
| // Shift right, rounding up |
| width = AV_CEIL_RSHIFT(width, h_chroma_shift); |
| height = AV_CEIL_RSHIFT(height, v_chroma_shift); |
| |
| ptr1 = frame->data[1]; |
| ptr2 = frame->data[2]; |
| for (i = 0; i < height; i++) { /* Cb */ |
| avio_write(pb, ptr1, width); |
| ptr1 += frame->linesize[1]; |
| } |
| for (i = 0; i < height; i++) { /* Cr */ |
| avio_write(pb, ptr2, width); |
| ptr2 += frame->linesize[2]; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int yuv4_write_header(AVFormatContext *s) |
| { |
| int *first_pkt = s->priv_data; |
| |
| if (s->nb_streams != 1) |
| return AVERROR(EIO); |
| |
| if (s->streams[0]->codecpar->codec_id != AV_CODEC_ID_WRAPPED_AVFRAME) { |
| av_log(s, AV_LOG_ERROR, "ERROR: Codec not supported.\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| switch (s->streams[0]->codecpar->format) { |
| case AV_PIX_FMT_YUV411P: |
| av_log(s, AV_LOG_WARNING, "Warning: generating rarely used 4:1:1 YUV " |
| "stream, some mjpegtools might not work.\n"); |
| break; |
| case AV_PIX_FMT_GRAY8: |
| case AV_PIX_FMT_YUV420P: |
| case AV_PIX_FMT_YUV422P: |
| case AV_PIX_FMT_YUV444P: |
| // TODO: remove YUVJ pixel formats when they are completely removed from the codebase. |
| case AV_PIX_FMT_YUVJ420P: |
| case AV_PIX_FMT_YUVJ422P: |
| case AV_PIX_FMT_YUVJ444P: |
| break; |
| case AV_PIX_FMT_GRAY9: |
| case AV_PIX_FMT_GRAY10: |
| case AV_PIX_FMT_GRAY12: |
| case AV_PIX_FMT_GRAY16: |
| case AV_PIX_FMT_YUV420P9: |
| case AV_PIX_FMT_YUV422P9: |
| case AV_PIX_FMT_YUV444P9: |
| case AV_PIX_FMT_YUV420P10: |
| case AV_PIX_FMT_YUV422P10: |
| case AV_PIX_FMT_YUV444P10: |
| case AV_PIX_FMT_YUV420P12: |
| case AV_PIX_FMT_YUV422P12: |
| case AV_PIX_FMT_YUV444P12: |
| case AV_PIX_FMT_YUV420P14: |
| case AV_PIX_FMT_YUV422P14: |
| case AV_PIX_FMT_YUV444P14: |
| case AV_PIX_FMT_YUV420P16: |
| case AV_PIX_FMT_YUV422P16: |
| case AV_PIX_FMT_YUV444P16: |
| if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) { |
| av_log(s, AV_LOG_ERROR, "'%s' is not an official yuv4mpegpipe pixel format. " |
| "Use '-strict -1' to encode to this pixel format.\n", |
| av_get_pix_fmt_name(s->streams[0]->codecpar->format)); |
| return AVERROR(EINVAL); |
| } |
| av_log(s, AV_LOG_WARNING, "Warning: generating non standard YUV stream. " |
| "Mjpegtools will not work.\n"); |
| break; |
| default: |
| av_log(s, AV_LOG_ERROR, "ERROR: yuv4mpeg can only handle " |
| "yuv444p, yuv422p, yuv420p, yuv411p and gray8 pixel formats. " |
| "And using 'strict -1' also yuv444p9, yuv422p9, yuv420p9, " |
| "yuv444p10, yuv422p10, yuv420p10, " |
| "yuv444p12, yuv422p12, yuv420p12, " |
| "yuv444p14, yuv422p14, yuv420p14, " |
| "yuv444p16, yuv422p16, yuv420p16, " |
| "gray9, gray10, gray12 " |
| "and gray16 pixel formats. " |
| "Use -pix_fmt to select one.\n"); |
| return AVERROR(EIO); |
| } |
| |
| *first_pkt = 1; |
| return 0; |
| } |
| |
| AVOutputFormat ff_yuv4mpegpipe_muxer = { |
| .name = "yuv4mpegpipe", |
| .long_name = NULL_IF_CONFIG_SMALL("YUV4MPEG pipe"), |
| .extensions = "y4m", |
| .priv_data_size = sizeof(int), |
| .audio_codec = AV_CODEC_ID_NONE, |
| .video_codec = AV_CODEC_ID_WRAPPED_AVFRAME, |
| .write_header = yuv4_write_header, |
| .write_packet = yuv4_write_packet, |
| }; |
