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-rw-r--r--libavformat/img.c945
1 files changed, 945 insertions, 0 deletions
diff --git a/libavformat/img.c b/libavformat/img.c
new file mode 100644
index 0000000000..305cbb08f2
--- /dev/null
+++ b/libavformat/img.c
@@ -0,0 +1,945 @@
+/*
+ * Image format
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include "avformat.h"
+
+extern AVInputFormat pgm_iformat;
+extern AVOutputFormat pgm_oformat;
+extern AVInputFormat pgmyuv_iformat;
+extern AVOutputFormat pgmyuv_oformat;
+extern AVInputFormat ppm_iformat;
+extern AVOutputFormat ppm_oformat;
+extern AVInputFormat imgyuv_iformat;
+extern AVOutputFormat imgyuv_oformat;
+extern AVInputFormat pgmpipe_iformat;
+extern AVOutputFormat pgmpipe_oformat;
+extern AVInputFormat pgmyuvpipe_iformat;
+extern AVOutputFormat pgmyuvpipe_oformat;
+extern AVInputFormat ppmpipe_iformat;
+extern AVOutputFormat ppmpipe_oformat;
+extern AVOutputFormat yuv4mpegpipe_oformat;
+
+#define IMGFMT_YUV 1
+#define IMGFMT_PGMYUV 2
+#define IMGFMT_PGM 3
+#define IMGFMT_PPM 4
+#define IMGFMT_YUV4MPEG 5
+
+#define Y4M_MAGIC "YUV4MPEG2"
+#define Y4M_FRAME_MAGIC "FRAME"
+#define Y4M_LINE_MAX 256
+
+typedef struct {
+ int width;
+ int height;
+ int img_number;
+ int img_size;
+ int img_fmt;
+ int is_pipe;
+ int header_written;
+ char path[1024];
+} VideoData;
+
+static inline int pnm_space(int c)
+{
+ return (c==' ' || c=='\n' || c=='\r' || c=='\t');
+}
+
+static void pnm_get(ByteIOContext *f, char *str, int buf_size)
+{
+ char *s;
+ int c;
+
+ do {
+ c=get_byte(f);
+ if (c=='#') {
+ do {
+ c=get_byte(f);
+ } while (c!='\n');
+ c=get_byte(f);
+ }
+ } while (pnm_space(c));
+
+ s=str;
+ do {
+ if (url_feof(f))
+ break;
+ if ((s - str) < buf_size - 1)
+ *s++=c;
+ c=get_byte(f);
+ } while (!pnm_space(c));
+ *s = '\0';
+}
+
+static int pgm_read(VideoData *s, ByteIOContext *f, UINT8 *buf, int size, int is_yuv)
+{
+ int width, height, i;
+ char buf1[32];
+ UINT8 *picture[3];
+
+ width = s->width;
+ height = s->height;
+
+ pnm_get(f, buf1, sizeof(buf1));
+ if (strcmp(buf1, "P5")) {
+ return -EIO;
+ }
+ pnm_get(f, buf1, sizeof(buf1));
+ pnm_get(f, buf1, sizeof(buf1));
+ pnm_get(f, buf1, sizeof(buf1));
+
+ picture[0] = buf;
+ picture[1] = buf + width * height;
+ picture[2] = buf + width * height + (width * height / 4);
+ get_buffer(f, picture[0], width * height);
+
+ height>>=1;
+ width>>=1;
+ if (is_yuv) {
+ for(i=0;i<height;i++) {
+ get_buffer(f, picture[1] + i * width, width);
+ get_buffer(f, picture[2] + i * width, width);
+ }
+ } else {
+ for(i=0;i<height;i++) {
+ memset(picture[1] + i * width, 128, width);
+ memset(picture[2] + i * width, 128, width);
+ }
+ }
+ return 0;
+}
+
+static int ppm_read(VideoData *s, ByteIOContext *f, UINT8 *buf, int size)
+{
+ int width, height;
+ char buf1[32];
+ UINT8 *picture[3];
+
+ width = s->width;
+ height = s->height;
+
+ pnm_get(f, buf1, sizeof(buf1));
+ if (strcmp(buf1, "P6")) {
+ return -EIO;
+ }
+
+ pnm_get(f, buf1, sizeof(buf1));
+ pnm_get(f, buf1, sizeof(buf1));
+ pnm_get(f, buf1, sizeof(buf1));
+
+ picture[0] = buf;
+ get_buffer(f, picture[0], width * height*3);
+
+ return 0;
+
+}
+
+static int yuv_read(VideoData *s, const char *filename, UINT8 *buf, int size1)
+{
+ ByteIOContext pb1, *pb = &pb1;
+ char fname[1024], *p;
+ int size;
+
+ size = s->width * s->height;
+
+ strcpy(fname, filename);
+ p = strrchr(fname, '.');
+ if (!p || p[1] != 'Y')
+ return -EIO;
+
+ if (url_fopen(pb, fname, URL_RDONLY) < 0)
+ return -EIO;
+
+ get_buffer(pb, buf, size);
+ url_fclose(pb);
+
+ p[1] = 'U';
+ if (url_fopen(pb, fname, URL_RDONLY) < 0)
+ return -EIO;
+
+ get_buffer(pb, buf + size, size / 4);
+ url_fclose(pb);
+
+ p[1] = 'V';
+ if (url_fopen(pb, fname, URL_RDONLY) < 0)
+ return -EIO;
+
+ get_buffer(pb, buf + size + (size / 4), size / 4);
+ url_fclose(pb);
+ return 0;
+}
+
+static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
+{
+ VideoData *s = s1->priv_data;
+ char filename[1024];
+ int ret;
+ ByteIOContext f1, *f;
+
+/*
+ This if-statement destroys pipes - I do not see why it is necessary
+ if (get_frame_filename(filename, sizeof(filename),
+ s->path, s->img_number) < 0)
+ return -EIO;
+*/
+ get_frame_filename(filename, sizeof(filename),
+ s->path, s->img_number);
+ if (!s->is_pipe) {
+ f = &f1;
+ if (url_fopen(f, filename, URL_RDONLY) < 0)
+ return -EIO;
+ } else {
+ f = &s1->pb;
+ if (url_feof(f))
+ return -EIO;
+ }
+
+ av_new_packet(pkt, s->img_size);
+ pkt->stream_index = 0;
+
+ switch(s->img_fmt) {
+ case IMGFMT_PGMYUV:
+ ret = pgm_read(s, f, pkt->data, pkt->size, 1);
+ break;
+ case IMGFMT_PGM:
+ ret = pgm_read(s, f, pkt->data, pkt->size, 0);
+ break;
+ case IMGFMT_YUV:
+ ret = yuv_read(s, filename, pkt->data, pkt->size);
+ break;
+ case IMGFMT_PPM:
+ ret = ppm_read(s, f, pkt->data, pkt->size);
+ break;
+ default:
+ return -EIO;
+ }
+
+ if (!s->is_pipe) {
+ url_fclose(f);
+ }
+
+ if (ret < 0) {
+ av_free_packet(pkt);
+ return -EIO; /* signal EOF */
+ } else {
+ pkt->pts = ((INT64)s->img_number * s1->pts_den * FRAME_RATE_BASE) / (s1->streams[0]->codec.frame_rate * s1->pts_num);
+ s->img_number++;
+ return 0;
+ }
+}
+
+static int sizes[][2] = {
+ { 640, 480 },
+ { 720, 480 },
+ { 720, 576 },
+ { 352, 288 },
+ { 352, 240 },
+ { 160, 128 },
+ { 512, 384 },
+ { 640, 352 },
+ { 640, 240 },
+};
+
+static int infer_size(int *width_ptr, int *height_ptr, int size)
+{
+ int i;
+
+ for(i=0;i<sizeof(sizes)/sizeof(sizes[0]);i++) {
+ if ((sizes[i][0] * sizes[i][1]) == size) {
+ *width_ptr = sizes[i][0];
+ *height_ptr = sizes[i][1];
+ return 0;
+ }
+ }
+ return -1;
+}
+
+static int img_read_header(AVFormatContext *s1, AVFormatParameters *ap)
+{
+ VideoData *s = s1->priv_data;
+ int i, h;
+ char buf[1024];
+ char buf1[32];
+ ByteIOContext pb1, *f = &pb1;
+ AVStream *st;
+
+ st = av_new_stream(s1, 0);
+ if (!st) {
+ av_free(s);
+ return -ENOMEM;
+ }
+
+ strcpy(s->path, s1->filename);
+ s->img_number = 0;
+
+ /* find format */
+ if (s1->iformat->flags & AVFMT_NOFILE)
+ s->is_pipe = 0;
+ else
+ s->is_pipe = 1;
+
+ if (s1->iformat == &pgmyuvpipe_iformat ||
+ s1->iformat == &pgmyuv_iformat)
+ s->img_fmt = IMGFMT_PGMYUV;
+ else if (s1->iformat == &pgmpipe_iformat ||
+ s1->iformat == &pgm_iformat)
+ s->img_fmt = IMGFMT_PGM;
+ else if (s1->iformat == &imgyuv_iformat)
+ s->img_fmt = IMGFMT_YUV;
+ else if (s1->iformat == &ppmpipe_iformat ||
+ s1->iformat == &ppm_iformat)
+ s->img_fmt = IMGFMT_PPM;
+ else
+ goto fail;
+
+ if (!s->is_pipe) {
+ /* try to find the first image */
+ for(i=0;i<5;i++) {
+ if (get_frame_filename(buf, sizeof(buf), s->path, s->img_number) < 0)
+ goto fail;
+ if (url_fopen(f, buf, URL_RDONLY) >= 0)
+ break;
+ s->img_number++;
+ }
+ if (i == 5)
+ goto fail;
+ } else {
+ f = &s1->pb;
+ }
+
+ /* find the image size */
+ /* XXX: use generic file format guessing, as mpeg */
+ switch(s->img_fmt) {
+ case IMGFMT_PGM:
+ case IMGFMT_PGMYUV:
+ case IMGFMT_PPM:
+ pnm_get(f, buf1, sizeof(buf1));
+ pnm_get(f, buf1, sizeof(buf1));
+ s->width = atoi(buf1);
+ pnm_get(f, buf1, sizeof(buf1));
+ h = atoi(buf1);
+ if (s->img_fmt == IMGFMT_PGMYUV)
+ h = (h * 2) / 3;
+ s->height = h;
+ if (s->width <= 0 ||
+ s->height <= 0 ||
+ (s->width % 2) != 0 ||
+ (s->height % 2) != 0) {
+ goto fail1;
+ }
+ break;
+ case IMGFMT_YUV:
+ /* infer size by using the file size. */
+ {
+ int img_size;
+ URLContext *h;
+
+ /* XXX: hack hack */
+ h = url_fileno(f);
+ img_size = url_seek(h, 0, SEEK_END);
+ if (infer_size(&s->width, &s->height, img_size) < 0) {
+ goto fail1;
+ }
+ }
+ break;
+ }
+
+
+ if (!s->is_pipe) {
+ url_fclose(f);
+ } else {
+ url_fseek(f, 0, SEEK_SET);
+ }
+
+
+ st->codec.codec_type = CODEC_TYPE_VIDEO;
+ st->codec.codec_id = CODEC_ID_RAWVIDEO;
+ st->codec.width = s->width;
+ st->codec.height = s->height;
+ if (s->img_fmt == IMGFMT_PPM) {
+ st->codec.pix_fmt = PIX_FMT_RGB24;
+ s->img_size = (s->width * s->height * 3);
+ } else {
+ st->codec.pix_fmt = PIX_FMT_YUV420P;
+ s->img_size = (s->width * s->height * 3) / 2;
+ }
+ if (!ap || !ap->frame_rate)
+ st->codec.frame_rate = 25 * FRAME_RATE_BASE;
+ else
+ st->codec.frame_rate = ap->frame_rate;
+
+ return 0;
+ fail1:
+ if (!s->is_pipe)
+ url_fclose(f);
+ fail:
+ av_free(s);
+ return -EIO;
+}
+
+static int img_read_close(AVFormatContext *s1)
+{
+ return 0;
+}
+
+/******************************************************/
+/* image output */
+
+static int pgm_save(AVPicture *picture, int width, int height, ByteIOContext *pb, int is_yuv)
+{
+ int i, h;
+ char buf[100];
+ UINT8 *ptr, *ptr1, *ptr2;
+
+ h = height;
+ if (is_yuv)
+ h = (height * 3) / 2;
+ snprintf(buf, sizeof(buf),
+ "P5\n%d %d\n%d\n",
+ width, h, 255);
+ put_buffer(pb, buf, strlen(buf));
+
+ 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++) {
+ put_buffer(pb, ptr1, width);
+ put_buffer(pb, ptr2, width);
+ ptr1 += picture->linesize[1];
+ ptr2 += picture->linesize[2];
+ }
+ }
+ put_flush_packet(pb);
+ return 0;
+}
+
+static int ppm_save(AVPicture *picture, int width, int height, ByteIOContext *pb)
+{
+ int i;
+ char buf[100];
+ UINT8 *ptr;
+
+ snprintf(buf, sizeof(buf),
+ "P6\n%d %d\n%d\n",
+ width, height, 255);
+ put_buffer(pb, buf, strlen(buf));
+
+ ptr = picture->data[0];
+ for(i=0;i<height;i++) {
+ put_buffer(pb, ptr, width * 3);
+ ptr += picture->linesize[0];
+ }
+
+ put_flush_packet(pb);
+ return 0;
+}
+
+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";
+
+ strcpy(fname, filename);
+ p = strrchr(fname, '.');
+ if (!p || p[1] != 'Y')
+ return -EIO;
+
+ for(i=0;i<3;i++) {
+ if (i == 1) {
+ width >>= 1;
+ height >>= 1;
+ }
+
+ 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;
+}
+
+static 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",
+};
+
+static 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,
+};
+
+static 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,
+};
+
+static 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,
+};
+
+static 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",
+};
+
+static 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,
+};
+
+static 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",
+};
+
+static 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,
+};
+
+static AVInputFormat pgmpipe_iformat = {
+ "pgmpipe",
+ "PGM pipe format",
+ sizeof(VideoData),
+ NULL, /* no probe */
+ img_read_header,
+ img_read_packet,
+ img_read_close,
+ NULL,
+};
+
+static 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,
+};
+
+static AVInputFormat pgmyuvpipe_iformat = {
+ "pgmyuvpipe",
+ "PGM YUV pipe format",
+ sizeof(VideoData),
+ NULL, /* no probe */
+ img_read_header,
+ img_read_packet,
+ img_read_close,
+ NULL,
+};
+
+static 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,
+};
+
+static 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,
+};
+
+static 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,
+};
+
+
+static 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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-15 14:56:27 +0000