945 lines
22 KiB
C
945 lines
22 KiB
C
/*
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* Image format
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* Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "avformat.h"
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extern AVInputFormat pgm_iformat;
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extern AVOutputFormat pgm_oformat;
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extern AVInputFormat pgmyuv_iformat;
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extern AVOutputFormat pgmyuv_oformat;
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extern AVInputFormat ppm_iformat;
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extern AVOutputFormat ppm_oformat;
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extern AVInputFormat imgyuv_iformat;
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extern AVOutputFormat imgyuv_oformat;
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extern AVInputFormat pgmpipe_iformat;
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extern AVOutputFormat pgmpipe_oformat;
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extern AVInputFormat pgmyuvpipe_iformat;
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extern AVOutputFormat pgmyuvpipe_oformat;
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extern AVInputFormat ppmpipe_iformat;
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extern AVOutputFormat ppmpipe_oformat;
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extern AVOutputFormat yuv4mpegpipe_oformat;
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#define IMGFMT_YUV 1
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#define IMGFMT_PGMYUV 2
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#define IMGFMT_PGM 3
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#define IMGFMT_PPM 4
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#define IMGFMT_YUV4MPEG 5
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#define Y4M_MAGIC "YUV4MPEG2"
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#define Y4M_FRAME_MAGIC "FRAME"
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#define Y4M_LINE_MAX 256
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typedef struct {
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int width;
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int height;
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int img_number;
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int img_size;
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int img_fmt;
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int is_pipe;
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int header_written;
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char path[1024];
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} VideoData;
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static inline int pnm_space(int c)
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{
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return (c==' ' || c=='\n' || c=='\r' || c=='\t');
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}
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static void pnm_get(ByteIOContext *f, char *str, int buf_size)
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{
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char *s;
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int c;
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do {
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c=get_byte(f);
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if (c=='#') {
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do {
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c=get_byte(f);
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} while (c!='\n');
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c=get_byte(f);
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}
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} while (pnm_space(c));
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s=str;
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do {
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if (url_feof(f))
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break;
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if ((s - str) < buf_size - 1)
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*s++=c;
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c=get_byte(f);
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} while (!pnm_space(c));
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*s = '\0';
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}
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static int pgm_read(VideoData *s, ByteIOContext *f, UINT8 *buf, int size, int is_yuv)
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{
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int width, height, i;
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char buf1[32];
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UINT8 *picture[3];
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width = s->width;
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height = s->height;
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pnm_get(f, buf1, sizeof(buf1));
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if (strcmp(buf1, "P5")) {
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return -EIO;
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}
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pnm_get(f, buf1, sizeof(buf1));
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pnm_get(f, buf1, sizeof(buf1));
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pnm_get(f, buf1, sizeof(buf1));
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picture[0] = buf;
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picture[1] = buf + width * height;
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picture[2] = buf + width * height + (width * height / 4);
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get_buffer(f, picture[0], width * height);
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height>>=1;
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width>>=1;
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if (is_yuv) {
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for(i=0;i<height;i++) {
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get_buffer(f, picture[1] + i * width, width);
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get_buffer(f, picture[2] + i * width, width);
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}
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} else {
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for(i=0;i<height;i++) {
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memset(picture[1] + i * width, 128, width);
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memset(picture[2] + i * width, 128, width);
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}
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}
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return 0;
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}
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static int ppm_read(VideoData *s, ByteIOContext *f, UINT8 *buf, int size)
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{
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int width, height;
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char buf1[32];
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UINT8 *picture[3];
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width = s->width;
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height = s->height;
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pnm_get(f, buf1, sizeof(buf1));
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if (strcmp(buf1, "P6")) {
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return -EIO;
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}
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pnm_get(f, buf1, sizeof(buf1));
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pnm_get(f, buf1, sizeof(buf1));
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pnm_get(f, buf1, sizeof(buf1));
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picture[0] = buf;
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get_buffer(f, picture[0], width * height*3);
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return 0;
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}
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static int yuv_read(VideoData *s, const char *filename, UINT8 *buf, int size1)
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{
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ByteIOContext pb1, *pb = &pb1;
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char fname[1024], *p;
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int size;
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size = s->width * s->height;
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strcpy(fname, filename);
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p = strrchr(fname, '.');
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if (!p || p[1] != 'Y')
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return -EIO;
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if (url_fopen(pb, fname, URL_RDONLY) < 0)
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return -EIO;
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get_buffer(pb, buf, size);
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url_fclose(pb);
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p[1] = 'U';
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if (url_fopen(pb, fname, URL_RDONLY) < 0)
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return -EIO;
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get_buffer(pb, buf + size, size / 4);
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url_fclose(pb);
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p[1] = 'V';
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if (url_fopen(pb, fname, URL_RDONLY) < 0)
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return -EIO;
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get_buffer(pb, buf + size + (size / 4), size / 4);
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url_fclose(pb);
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return 0;
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}
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static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
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{
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VideoData *s = s1->priv_data;
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char filename[1024];
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int ret;
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ByteIOContext f1, *f;
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/*
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This if-statement destroys pipes - I do not see why it is necessary
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if (get_frame_filename(filename, sizeof(filename),
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s->path, s->img_number) < 0)
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return -EIO;
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*/
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get_frame_filename(filename, sizeof(filename),
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s->path, s->img_number);
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if (!s->is_pipe) {
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f = &f1;
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if (url_fopen(f, filename, URL_RDONLY) < 0)
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return -EIO;
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} else {
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f = &s1->pb;
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if (url_feof(f))
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return -EIO;
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}
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av_new_packet(pkt, s->img_size);
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pkt->stream_index = 0;
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switch(s->img_fmt) {
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case IMGFMT_PGMYUV:
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ret = pgm_read(s, f, pkt->data, pkt->size, 1);
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break;
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case IMGFMT_PGM:
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ret = pgm_read(s, f, pkt->data, pkt->size, 0);
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break;
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case IMGFMT_YUV:
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ret = yuv_read(s, filename, pkt->data, pkt->size);
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break;
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case IMGFMT_PPM:
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ret = ppm_read(s, f, pkt->data, pkt->size);
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break;
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default:
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return -EIO;
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}
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if (!s->is_pipe) {
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url_fclose(f);
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}
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if (ret < 0) {
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av_free_packet(pkt);
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return -EIO; /* signal EOF */
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} else {
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s->img_number++;
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return 0;
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}
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}
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static int sizes[][2] = {
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{ 640, 480 },
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{ 720, 480 },
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{ 720, 576 },
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{ 352, 288 },
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{ 352, 240 },
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{ 160, 128 },
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{ 512, 384 },
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{ 640, 352 },
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{ 640, 240 },
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};
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static int infer_size(int *width_ptr, int *height_ptr, int size)
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{
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int i;
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for(i=0;i<sizeof(sizes)/sizeof(sizes[0]);i++) {
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if ((sizes[i][0] * sizes[i][1]) == size) {
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*width_ptr = sizes[i][0];
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*height_ptr = sizes[i][1];
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return 0;
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}
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}
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return -1;
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}
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static int img_read_header(AVFormatContext *s1, AVFormatParameters *ap)
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{
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VideoData *s = s1->priv_data;
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int i, h;
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char buf[1024];
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char buf1[32];
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ByteIOContext pb1, *f = &pb1;
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AVStream *st;
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st = av_new_stream(s1, 0);
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if (!st) {
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av_free(s);
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return -ENOMEM;
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}
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strcpy(s->path, s1->filename);
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s->img_number = 0;
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/* find format */
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if (s1->iformat->flags & AVFMT_NOFILE)
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s->is_pipe = 0;
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else
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s->is_pipe = 1;
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if (s1->iformat == &pgmyuvpipe_iformat ||
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s1->iformat == &pgmyuv_iformat)
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s->img_fmt = IMGFMT_PGMYUV;
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else if (s1->iformat == &pgmpipe_iformat ||
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s1->iformat == &pgm_iformat)
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s->img_fmt = IMGFMT_PGM;
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else if (s1->iformat == &imgyuv_iformat)
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s->img_fmt = IMGFMT_YUV;
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else if (s1->iformat == &ppmpipe_iformat ||
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s1->iformat == &ppm_iformat)
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s->img_fmt = IMGFMT_PPM;
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else
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goto fail;
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if (!s->is_pipe) {
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/* try to find the first image */
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for(i=0;i<5;i++) {
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if (get_frame_filename(buf, sizeof(buf), s->path, s->img_number) < 0)
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goto fail;
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if (url_fopen(f, buf, URL_RDONLY) >= 0)
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break;
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s->img_number++;
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}
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if (i == 5)
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goto fail;
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} else {
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f = &s1->pb;
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}
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/* find the image size */
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/* XXX: use generic file format guessing, as mpeg */
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switch(s->img_fmt) {
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case IMGFMT_PGM:
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case IMGFMT_PGMYUV:
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case IMGFMT_PPM:
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pnm_get(f, buf1, sizeof(buf1));
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pnm_get(f, buf1, sizeof(buf1));
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s->width = atoi(buf1);
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pnm_get(f, buf1, sizeof(buf1));
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h = atoi(buf1);
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if (s->img_fmt == IMGFMT_PGMYUV)
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h = (h * 2) / 3;
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s->height = h;
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if (s->width <= 0 ||
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s->height <= 0 ||
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(s->width % 2) != 0 ||
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(s->height % 2) != 0) {
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goto fail1;
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}
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break;
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case IMGFMT_YUV:
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/* infer size by using the file size. */
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{
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int img_size;
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URLContext *h;
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/* XXX: hack hack */
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h = url_fileno(f);
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img_size = url_seek(h, 0, SEEK_END);
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if (infer_size(&s->width, &s->height, img_size) < 0) {
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goto fail1;
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}
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}
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break;
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}
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if (!s->is_pipe) {
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url_fclose(f);
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} else {
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url_fseek(f, 0, SEEK_SET);
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}
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st->codec.codec_type = CODEC_TYPE_VIDEO;
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st->codec.codec_id = CODEC_ID_RAWVIDEO;
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st->codec.width = s->width;
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st->codec.height = s->height;
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if (s->img_fmt == IMGFMT_PPM) {
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st->codec.pix_fmt = PIX_FMT_RGB24;
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s->img_size = (s->width * s->height * 3);
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} else {
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st->codec.pix_fmt = PIX_FMT_YUV420P;
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s->img_size = (s->width * s->height * 3) / 2;
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}
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if (!ap || !ap->frame_rate)
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st->codec.frame_rate = 25 * FRAME_RATE_BASE;
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else
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st->codec.frame_rate = ap->frame_rate;
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return 0;
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fail1:
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if (!s->is_pipe)
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url_fclose(f);
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fail:
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av_free(s);
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return -EIO;
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}
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static int img_read_close(AVFormatContext *s1)
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{
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return 0;
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}
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/******************************************************/
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/* image output */
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static int pgm_save(AVPicture *picture, int width, int height, ByteIOContext *pb, int is_yuv)
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{
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int i, h;
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char buf[100];
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UINT8 *ptr, *ptr1, *ptr2;
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h = height;
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if (is_yuv)
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h = (height * 3) / 2;
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snprintf(buf, sizeof(buf),
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"P5\n%d %d\n%d\n",
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width, h, 255);
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put_buffer(pb, buf, strlen(buf));
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ptr = picture->data[0];
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for(i=0;i<height;i++) {
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put_buffer(pb, ptr, width);
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ptr += picture->linesize[0];
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}
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if (is_yuv) {
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height >>= 1;
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width >>= 1;
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ptr1 = picture->data[1];
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ptr2 = picture->data[2];
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for(i=0;i<height;i++) {
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put_buffer(pb, ptr1, width);
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put_buffer(pb, ptr2, width);
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ptr1 += picture->linesize[1];
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ptr2 += picture->linesize[2];
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}
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}
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put_flush_packet(pb);
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return 0;
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}
|
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|
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static int ppm_save(AVPicture *picture, int width, int height, ByteIOContext *pb)
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{
|
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int i;
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char buf[100];
|
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UINT8 *ptr;
|
|
|
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snprintf(buf, sizeof(buf),
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"P6\n%d %d\n%d\n",
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width, height, 255);
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put_buffer(pb, buf, strlen(buf));
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|
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ptr = picture->data[0];
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for(i=0;i<height;i++) {
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put_buffer(pb, ptr, width * 3);
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ptr += picture->linesize[0];
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}
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|
|
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put_flush_packet(pb);
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return 0;
|
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}
|
|
|
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static int yuv_save(AVPicture *picture, int width, int height, const char *filename)
|
|
{
|
|
ByteIOContext pb1, *pb = &pb1;
|
|
char fname[1024], *p;
|
|
int i, j;
|
|
UINT8 *ptr;
|
|
static char *ext = "YUV";
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|
|
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strcpy(fname, filename);
|
|
p = strrchr(fname, '.');
|
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if (!p || p[1] != 'Y')
|
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return -EIO;
|
|
|
|
for(i=0;i<3;i++) {
|
|
if (i == 1) {
|
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width >>= 1;
|
|
height >>= 1;
|
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}
|
|
|
|
p[1] = ext[i];
|
|
if (url_fopen(pb, fname, URL_WRONLY) < 0)
|
|
return -EIO;
|
|
|
|
ptr = picture->data[i];
|
|
for(j=0;j<height;j++) {
|
|
put_buffer(pb, ptr, width);
|
|
ptr += picture->linesize[i];
|
|
}
|
|
put_flush_packet(pb);
|
|
url_fclose(pb);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int yuv4mpeg_save(AVPicture *picture, int width, int height, ByteIOContext *pb, int need_stream_header,
|
|
int is_yuv, int raten, int rated, int aspectn, int aspectd)
|
|
{
|
|
int i, n, m;
|
|
char buf[Y4M_LINE_MAX+1], buf1[20];
|
|
UINT8 *ptr, *ptr1, *ptr2;
|
|
|
|
/* construct stream header, if this is the first frame */
|
|
if(need_stream_header) {
|
|
n = snprintf(buf, sizeof(buf), "%s W%d H%d F%d:%d I%s A%d:%d\n",
|
|
Y4M_MAGIC,
|
|
width,
|
|
height,
|
|
raten, rated,
|
|
"p", /* ffmpeg seems to only output progressive video */
|
|
aspectn, aspectd);
|
|
if (n < 0) {
|
|
fprintf(stderr, "Error. YUV4MPEG stream header write failed.\n");
|
|
} else {
|
|
fprintf(stderr, "YUV4MPEG stream header written. FPS is %d\n", raten);
|
|
put_buffer(pb, buf, strlen(buf));
|
|
}
|
|
}
|
|
|
|
/* construct frame header */
|
|
m = snprintf(buf1, sizeof(buf1), "%s \n", Y4M_FRAME_MAGIC);
|
|
if (m < 0) {
|
|
fprintf(stderr, "Error. YUV4MPEG frame header write failed.\n");
|
|
} else {
|
|
/* fprintf(stderr, "YUV4MPEG frame header written.\n"); */
|
|
put_buffer(pb, buf1, strlen(buf1));
|
|
}
|
|
|
|
ptr = picture->data[0];
|
|
for(i=0;i<height;i++) {
|
|
put_buffer(pb, ptr, width);
|
|
ptr += picture->linesize[0];
|
|
}
|
|
|
|
if (is_yuv) {
|
|
height >>= 1;
|
|
width >>= 1;
|
|
ptr1 = picture->data[1];
|
|
ptr2 = picture->data[2];
|
|
for(i=0;i<height;i++) { /* Cb */
|
|
put_buffer(pb, ptr1, width);
|
|
ptr1 += picture->linesize[1];
|
|
}
|
|
for(i=0;i<height;i++) { /* Cr */
|
|
put_buffer(pb, ptr2, width);
|
|
ptr2 += picture->linesize[2];
|
|
}
|
|
}
|
|
put_flush_packet(pb);
|
|
return 0;
|
|
}
|
|
|
|
static int img_write_header(AVFormatContext *s)
|
|
{
|
|
VideoData *img = s->priv_data;
|
|
|
|
img->img_number = 1;
|
|
strcpy(img->path, s->filename);
|
|
|
|
/* find format */
|
|
if (s->oformat->flags & AVFMT_NOFILE)
|
|
img->is_pipe = 0;
|
|
else
|
|
img->is_pipe = 1;
|
|
|
|
if (s->oformat == &pgmyuvpipe_oformat ||
|
|
s->oformat == &pgmyuv_oformat) {
|
|
img->img_fmt = IMGFMT_PGMYUV;
|
|
} else if (s->oformat == &pgmpipe_oformat ||
|
|
s->oformat == &pgm_oformat) {
|
|
img->img_fmt = IMGFMT_PGM;
|
|
} else if (s->oformat == &imgyuv_oformat) {
|
|
img->img_fmt = IMGFMT_YUV;
|
|
} else if (s->oformat == &ppmpipe_oformat ||
|
|
s->oformat == &ppm_oformat) {
|
|
img->img_fmt = IMGFMT_PPM;
|
|
} else if (s->oformat == &yuv4mpegpipe_oformat) {
|
|
img->img_fmt = IMGFMT_YUV4MPEG;
|
|
img->header_written = 0;
|
|
} else {
|
|
goto fail;
|
|
}
|
|
return 0;
|
|
fail:
|
|
av_free(img);
|
|
return -EIO;
|
|
}
|
|
|
|
static int img_write_packet(AVFormatContext *s, int stream_index,
|
|
UINT8 *buf, int size, int force_pts)
|
|
{
|
|
VideoData *img = s->priv_data;
|
|
AVStream *st = s->streams[stream_index];
|
|
ByteIOContext pb1, *pb;
|
|
AVPicture picture;
|
|
int width, height, need_stream_header, ret, size1, raten, rated, aspectn, aspectd, fps, fps1;
|
|
char filename[1024];
|
|
|
|
width = st->codec.width;
|
|
height = st->codec.height;
|
|
|
|
if (img->img_number == 1) {
|
|
need_stream_header = 1;
|
|
} else {
|
|
need_stream_header = 0;
|
|
}
|
|
|
|
fps = st->codec.frame_rate;
|
|
fps1 = (((float)fps / FRAME_RATE_BASE) * 1000);
|
|
|
|
/* Sorry about this messy code, but mpeg2enc is very picky about
|
|
* the framerates it accepts. */
|
|
switch(fps1) {
|
|
case 23976:
|
|
raten = 24000; /* turn the framerate into a ratio */
|
|
rated = 1001;
|
|
break;
|
|
case 29970:
|
|
raten = 30000;
|
|
rated = 1001;
|
|
break;
|
|
case 25000:
|
|
raten = 25;
|
|
rated = 1;
|
|
break;
|
|
case 30000:
|
|
raten = 30;
|
|
rated = 1;
|
|
break;
|
|
case 24000:
|
|
raten = 24;
|
|
rated = 1;
|
|
break;
|
|
case 50000:
|
|
raten = 50;
|
|
rated = 1;
|
|
break;
|
|
case 59940:
|
|
raten = 60000;
|
|
rated = 1001;
|
|
break;
|
|
case 60000:
|
|
raten = 60;
|
|
rated = 1;
|
|
break;
|
|
default:
|
|
raten = fps1; /* this setting should work, but often doesn't */
|
|
rated = 1000;
|
|
break;
|
|
}
|
|
|
|
aspectn = 1;
|
|
aspectd = 1; /* ffmpeg always uses a 1:1 aspect ratio */
|
|
|
|
switch(st->codec.pix_fmt) {
|
|
case PIX_FMT_YUV420P:
|
|
size1 = (width * height * 3) / 2;
|
|
if (size != size1)
|
|
return -EIO;
|
|
|
|
picture.data[0] = buf;
|
|
picture.data[1] = picture.data[0] + width * height;
|
|
picture.data[2] = picture.data[1] + (width * height) / 4;
|
|
picture.linesize[0] = width;
|
|
picture.linesize[1] = width >> 1;
|
|
picture.linesize[2] = width >> 1;
|
|
break;
|
|
case PIX_FMT_RGB24:
|
|
size1 = (width * height * 3);
|
|
if (size != size1)
|
|
return -EIO;
|
|
picture.data[0] = buf;
|
|
picture.linesize[0] = width * 3;
|
|
break;
|
|
default:
|
|
return -EIO;
|
|
}
|
|
|
|
/*
|
|
This if-statement destroys pipes - I do not see why it is necessary
|
|
if (get_frame_filename(filename, sizeof(filename),
|
|
img->path, img->img_number) < 0)
|
|
return -EIO;
|
|
*/
|
|
get_frame_filename(filename, sizeof(filename),
|
|
img->path, img->img_number);
|
|
if (!img->is_pipe) {
|
|
pb = &pb1;
|
|
if (url_fopen(pb, filename, URL_WRONLY) < 0)
|
|
return -EIO;
|
|
} else {
|
|
pb = &s->pb;
|
|
}
|
|
switch(img->img_fmt) {
|
|
case IMGFMT_PGMYUV:
|
|
ret = pgm_save(&picture, width, height, pb, 1);
|
|
break;
|
|
case IMGFMT_PGM:
|
|
ret = pgm_save(&picture, width, height, pb, 0);
|
|
break;
|
|
case IMGFMT_YUV:
|
|
ret = yuv_save(&picture, width, height, filename);
|
|
break;
|
|
case IMGFMT_PPM:
|
|
ret = ppm_save(&picture, width, height, pb);
|
|
break;
|
|
case IMGFMT_YUV4MPEG:
|
|
ret = yuv4mpeg_save(&picture, width, height, pb,
|
|
need_stream_header, 1, raten, rated, aspectn, aspectd);
|
|
break;
|
|
}
|
|
if (!img->is_pipe) {
|
|
url_fclose(pb);
|
|
}
|
|
|
|
img->img_number++;
|
|
return 0;
|
|
}
|
|
|
|
static int img_write_trailer(AVFormatContext *s)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
AVInputFormat pgm_iformat = {
|
|
"pgm",
|
|
"pgm image format",
|
|
sizeof(VideoData),
|
|
NULL,
|
|
img_read_header,
|
|
img_read_packet,
|
|
img_read_close,
|
|
NULL,
|
|
AVFMT_NOFILE | AVFMT_NEEDNUMBER,
|
|
.extensions = "pgm",
|
|
};
|
|
|
|
AVOutputFormat pgm_oformat = {
|
|
"pgm",
|
|
"pgm image format",
|
|
"",
|
|
"pgm",
|
|
sizeof(VideoData),
|
|
CODEC_ID_NONE,
|
|
CODEC_ID_RAWVIDEO,
|
|
img_write_header,
|
|
img_write_packet,
|
|
img_write_trailer,
|
|
AVFMT_NOFILE | AVFMT_NEEDNUMBER,
|
|
};
|
|
|
|
AVInputFormat pgmyuv_iformat = {
|
|
"pgmyuv",
|
|
"pgm with YUV content image format",
|
|
sizeof(VideoData),
|
|
NULL, /* no probe */
|
|
img_read_header,
|
|
img_read_packet,
|
|
img_read_close,
|
|
NULL,
|
|
AVFMT_NOFILE | AVFMT_NEEDNUMBER,
|
|
};
|
|
|
|
AVOutputFormat pgmyuv_oformat = {
|
|
"pgmyuv",
|
|
"pgm with YUV content image format",
|
|
"",
|
|
"pgm",
|
|
sizeof(VideoData),
|
|
CODEC_ID_NONE,
|
|
CODEC_ID_RAWVIDEO,
|
|
img_write_header,
|
|
img_write_packet,
|
|
img_write_trailer,
|
|
AVFMT_NOFILE | AVFMT_NEEDNUMBER,
|
|
};
|
|
|
|
AVInputFormat ppm_iformat = {
|
|
"ppm",
|
|
"ppm image format",
|
|
sizeof(VideoData),
|
|
NULL,
|
|
img_read_header,
|
|
img_read_packet,
|
|
img_read_close,
|
|
NULL,
|
|
AVFMT_NOFILE | AVFMT_NEEDNUMBER | AVFMT_RGB24,
|
|
.extensions = "ppm",
|
|
};
|
|
|
|
AVOutputFormat ppm_oformat = {
|
|
"ppm",
|
|
"ppm image format",
|
|
"",
|
|
"ppm",
|
|
sizeof(VideoData),
|
|
CODEC_ID_NONE,
|
|
CODEC_ID_RAWVIDEO,
|
|
img_write_header,
|
|
img_write_packet,
|
|
img_write_trailer,
|
|
AVFMT_NOFILE | AVFMT_NEEDNUMBER | AVFMT_RGB24,
|
|
};
|
|
|
|
AVInputFormat imgyuv_iformat = {
|
|
".Y.U.V",
|
|
".Y.U.V format",
|
|
sizeof(VideoData),
|
|
NULL,
|
|
img_read_header,
|
|
img_read_packet,
|
|
img_read_close,
|
|
NULL,
|
|
AVFMT_NOFILE | AVFMT_NEEDNUMBER,
|
|
.extensions = "Y",
|
|
};
|
|
|
|
AVOutputFormat imgyuv_oformat = {
|
|
".Y.U.V",
|
|
".Y.U.V format",
|
|
"",
|
|
"Y",
|
|
sizeof(VideoData),
|
|
CODEC_ID_NONE,
|
|
CODEC_ID_RAWVIDEO,
|
|
img_write_header,
|
|
img_write_packet,
|
|
img_write_trailer,
|
|
AVFMT_NOFILE | AVFMT_NEEDNUMBER,
|
|
};
|
|
|
|
AVInputFormat pgmpipe_iformat = {
|
|
"pgmpipe",
|
|
"PGM pipe format",
|
|
sizeof(VideoData),
|
|
NULL, /* no probe */
|
|
img_read_header,
|
|
img_read_packet,
|
|
img_read_close,
|
|
NULL,
|
|
};
|
|
|
|
AVOutputFormat pgmpipe_oformat = {
|
|
"pgmpipe",
|
|
"PGM pipe format",
|
|
"",
|
|
"pgm",
|
|
sizeof(VideoData),
|
|
CODEC_ID_NONE,
|
|
CODEC_ID_RAWVIDEO,
|
|
img_write_header,
|
|
img_write_packet,
|
|
img_write_trailer,
|
|
};
|
|
|
|
AVInputFormat pgmyuvpipe_iformat = {
|
|
"pgmyuvpipe",
|
|
"PGM YUV pipe format",
|
|
sizeof(VideoData),
|
|
NULL, /* no probe */
|
|
img_read_header,
|
|
img_read_packet,
|
|
img_read_close,
|
|
NULL,
|
|
};
|
|
|
|
AVOutputFormat pgmyuvpipe_oformat = {
|
|
"pgmyuvpipe",
|
|
"PGM YUV pipe format",
|
|
"",
|
|
"pgm",
|
|
sizeof(VideoData),
|
|
CODEC_ID_NONE,
|
|
CODEC_ID_RAWVIDEO,
|
|
img_write_header,
|
|
img_write_packet,
|
|
img_write_trailer,
|
|
};
|
|
|
|
AVInputFormat ppmpipe_iformat = {
|
|
"ppmpipe",
|
|
"PPM pipe format",
|
|
sizeof(VideoData),
|
|
NULL, /* no probe */
|
|
img_read_header,
|
|
img_read_packet,
|
|
img_read_close,
|
|
NULL,
|
|
.flags = AVFMT_RGB24,
|
|
};
|
|
|
|
AVOutputFormat ppmpipe_oformat = {
|
|
"ppmpipe",
|
|
"PPM pipe format",
|
|
"",
|
|
"ppm",
|
|
sizeof(VideoData),
|
|
CODEC_ID_NONE,
|
|
CODEC_ID_RAWVIDEO,
|
|
img_write_header,
|
|
img_write_packet,
|
|
img_write_trailer,
|
|
.flags = AVFMT_RGB24,
|
|
};
|
|
|
|
|
|
AVOutputFormat yuv4mpegpipe_oformat = {
|
|
"yuv4mpegpipe",
|
|
"YUV4MPEG pipe format",
|
|
"",
|
|
"yuv4mpeg",
|
|
sizeof(VideoData),
|
|
CODEC_ID_NONE,
|
|
CODEC_ID_RAWVIDEO,
|
|
img_write_header,
|
|
img_write_packet,
|
|
img_write_trailer,
|
|
};
|
|
|
|
|
|
int img_init(void)
|
|
{
|
|
av_register_input_format(&pgm_iformat);
|
|
av_register_output_format(&pgm_oformat);
|
|
|
|
av_register_input_format(&pgmyuv_iformat);
|
|
av_register_output_format(&pgmyuv_oformat);
|
|
|
|
av_register_input_format(&ppm_iformat);
|
|
av_register_output_format(&ppm_oformat);
|
|
|
|
av_register_input_format(&imgyuv_iformat);
|
|
av_register_output_format(&imgyuv_oformat);
|
|
|
|
av_register_input_format(&pgmpipe_iformat);
|
|
av_register_output_format(&pgmpipe_oformat);
|
|
|
|
av_register_input_format(&pgmyuvpipe_iformat);
|
|
av_register_output_format(&pgmyuvpipe_oformat);
|
|
|
|
av_register_input_format(&ppmpipe_iformat);
|
|
av_register_output_format(&ppmpipe_oformat);
|
|
|
|
av_register_output_format(&yuv4mpegpipe_oformat);
|
|
|
|
return 0;
|
|
}
|