/*
* Image format
- * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
* Copyright (c) 2004 Michael Niedermayer
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "avformat.h"
-typedef struct {
- int img_first;
- int img_last;
- int img_number;
- int img_count;
- int is_pipe;
- char path[1024];
-} VideoData;
+#include "libavutil/avstring.h"
+#include "internal.h"
-typedef struct {
- enum CodecID id;
+typedef struct IdStrMap {
+ enum AVCodecID id;
const char *str;
} IdStrMap;
static const IdStrMap img_tags[] = {
- { CODEC_ID_MJPEG , "jpeg"},
- { CODEC_ID_MJPEG , "jpg"},
- { CODEC_ID_LJPEG , "ljpg"},
- { CODEC_ID_MPEG1VIDEO, "mpg1-img"},
- { CODEC_ID_MPEG2VIDEO, "mpg2-img"},
- { CODEC_ID_MPEG4 , "mpg4-img"},
- { CODEC_ID_FFV1 , "ffv1-img"},
- {0, NULL}
+ { AV_CODEC_ID_MJPEG, "jpeg" },
+ { AV_CODEC_ID_MJPEG, "jpg" },
+ { AV_CODEC_ID_MJPEG, "jps" },
+ { AV_CODEC_ID_MJPEG, "mpo" },
+ { AV_CODEC_ID_LJPEG, "ljpg" },
+ { AV_CODEC_ID_PNG, "png" },
+ { AV_CODEC_ID_PNG, "pns" },
+ { AV_CODEC_ID_PNG, "mng" },
+ { AV_CODEC_ID_PPM, "ppm" },
+ { AV_CODEC_ID_PPM, "pnm" },
+ { AV_CODEC_ID_PGM, "pgm" },
+ { AV_CODEC_ID_PGMYUV, "pgmyuv" },
+ { AV_CODEC_ID_PBM, "pbm" },
+ { AV_CODEC_ID_PAM, "pam" },
+ { AV_CODEC_ID_ALIAS_PIX, "pix" },
+ { AV_CODEC_ID_DDS, "dds" },
+ { AV_CODEC_ID_MPEG1VIDEO, "mpg1-img" },
+ { AV_CODEC_ID_MPEG2VIDEO, "mpg2-img" },
+ { AV_CODEC_ID_MPEG4, "mpg4-img" },
+ { AV_CODEC_ID_FFV1, "ffv1-img" },
+ { AV_CODEC_ID_RAWVIDEO, "y" },
+ { AV_CODEC_ID_BMP, "bmp" },
+ { AV_CODEC_ID_GIF, "gif" },
+ { AV_CODEC_ID_TARGA, "tga" },
+ { AV_CODEC_ID_TIFF, "tiff" },
+ { AV_CODEC_ID_TIFF, "tif" },
+ { AV_CODEC_ID_SGI, "sgi" },
+ { AV_CODEC_ID_PTX, "ptx" },
+ { AV_CODEC_ID_BRENDER_PIX,"pix" },
+ { AV_CODEC_ID_PCX, "pcx" },
+ { AV_CODEC_ID_QDRAW, "pic" },
+ { AV_CODEC_ID_QDRAW, "pct" },
+ { AV_CODEC_ID_QDRAW, "pict" },
+ { AV_CODEC_ID_SUNRAST, "sun" },
+ { AV_CODEC_ID_SUNRAST, "ras" },
+ { AV_CODEC_ID_SUNRAST, "rs" },
+ { AV_CODEC_ID_SUNRAST, "im1" },
+ { AV_CODEC_ID_SUNRAST, "im8" },
+ { AV_CODEC_ID_SUNRAST, "im24" },
+ { AV_CODEC_ID_SUNRAST, "sunras" },
+ { AV_CODEC_ID_JPEG2000, "j2c" },
+ { AV_CODEC_ID_JPEG2000, "jp2" },
+ { AV_CODEC_ID_JPEG2000, "jpc" },
+ { AV_CODEC_ID_JPEG2000, "j2k" },
+ { AV_CODEC_ID_DPX, "dpx" },
+ { AV_CODEC_ID_EXR, "exr" },
+ { AV_CODEC_ID_PICTOR, "pic" },
+ { AV_CODEC_ID_WEBP, "webp" },
+ { AV_CODEC_ID_XBM, "xbm" },
+ { AV_CODEC_ID_XWD, "xwd" },
+ { AV_CODEC_ID_NONE, NULL }
};
-static enum CodecID av_str2id(const IdStrMap *tags, const char *str)
+static enum AVCodecID av_str2id(const IdStrMap *tags, const char *str)
{
- str= strrchr(str, '.');
- if(!str) return CODEC_ID_NONE;
+ str = strrchr(str, '.');
+ if (!str)
+ return AV_CODEC_ID_NONE;
str++;
while (tags->id) {
- int i;
- for(i=0; toupper(tags->str[i]) == toupper(str[i]); i++){
- if(tags->str[i]==0 && str[i]==0)
- return tags->id;
- }
+ if (!av_strcasecmp(str, tags->str))
+ return tags->id;
tags++;
}
- return CODEC_ID_NONE;
-}
-
-static const char *av_id2str(const IdStrMap *tags, enum CodecID id)
-{
- while (tags->id) {
- if(tags->id == id)
- return tags->str;
- tags++;
- }
- return NULL;
-}
-
-/* return -1 if no image found */
-static int find_image_range(int *pfirst_index, int *plast_index,
- const char *path)
-{
- char buf[1024];
- int range, last_index, range1, first_index;
-
- /* find the first image */
- for(first_index = 0; first_index < 5; first_index++) {
- if (get_frame_filename(buf, sizeof(buf), path, first_index) < 0){
- *pfirst_index =
- *plast_index = 1;
- return 0;
- }
- if (url_exist(buf))
- break;
- }
- if (first_index == 5)
- goto fail;
-
- /* find the last image */
- last_index = first_index;
- for(;;) {
- range = 0;
- for(;;) {
- if (!range)
- range1 = 1;
- else
- range1 = 2 * range;
- if (get_frame_filename(buf, sizeof(buf), path,
- last_index + range1) < 0)
- goto fail;
- if (!url_exist(buf))
- break;
- range = range1;
- /* just in case... */
- if (range >= (1 << 30))
- goto fail;
- }
- /* we are sure than image last_index + range exists */
- if (!range)
- break;
- last_index += range;
- }
- *pfirst_index = first_index;
- *plast_index = last_index;
- return 0;
- fail:
- return -1;
-}
-
-
-static int image_probe(AVProbeData *p)
-{
- if (filename_number_test(p->filename) >= 0 && av_str2id(img_tags, p->filename))
- return AVPROBE_SCORE_MAX;
- else
- return 0;
-}
-
-static int img_read_header(AVFormatContext *s1, AVFormatParameters *ap)
-{
- VideoData *s = s1->priv_data;
- int first_index, last_index;
- AVStream *st;
-
- s1->ctx_flags |= AVFMTCTX_NOHEADER;
-
- st = av_new_stream(s1, 0);
- if (!st) {
- av_free(s);
- return -ENOMEM;
- }
-
- strcpy(s->path, s1->filename);
- s->img_number = 0;
- s->img_count = 0;
-
- /* find format */
- if (s1->iformat->flags & AVFMT_NOFILE)
- s->is_pipe = 0;
- else
- s->is_pipe = 1;
-
- if (!ap || !ap->frame_rate) {
- st->codec.frame_rate = 25;
- st->codec.frame_rate_base = 1;
- } else {
- st->codec.frame_rate = ap->frame_rate;
- st->codec.frame_rate_base = ap->frame_rate_base;
- }
-
- if (!s->is_pipe) {
- if (find_image_range(&first_index, &last_index, s->path) < 0)
- goto fail;
- s->img_first = first_index;
- s->img_last = last_index;
- s->img_number = first_index;
- /* compute duration */
- st->start_time = 0;
- st->duration = ((int64_t)AV_TIME_BASE *
- (last_index - first_index + 1) *
- st->codec.frame_rate_base) / st->codec.frame_rate;
- }
-
- st->codec.codec_type = CODEC_TYPE_VIDEO;
- st->codec.codec_id = av_str2id(img_tags, s->path);
-
- return 0;
-
- fail:
- av_free(s);
- return AVERROR_IO;
-}
-
-static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
-{
- VideoData *s = s1->priv_data;
- char filename[1024];
- int ret;
- ByteIOContext f1, *f;
-
- if (!s->is_pipe) {
- /* loop over input */
-/* if (loop_input && s->img_number > s->img_last) {
- s->img_number = s->img_first;
- }*/
- if (get_frame_filename(filename, sizeof(filename),
- s->path, s->img_number)<0 && s->img_number > 1)
- return AVERROR_IO;
- f = &f1;
- if (url_fopen(f, filename, URL_RDONLY) < 0)
- return AVERROR_IO;
- } else {
- f = &s1->pb;
- if (url_feof(f))
- return AVERROR_IO;
- }
-
- if (s->is_pipe) {
- av_new_packet(pkt, 4096);
- }else{
- av_new_packet(pkt, url_filesize(url_fileno(f)));
- }
- pkt->stream_index = 0;
- pkt->flags |= PKT_FLAG_KEY;
-
- ret = get_buffer(f, pkt->data, pkt->size);
- if (!s->is_pipe) {
- url_fclose(f);
- }
-
- if (ret <= 0) {
- av_free_packet(pkt);
- return AVERROR_IO; /* signal EOF */
- } else {
- s->img_count++;
- s->img_number++;
- return 0;
- }
-}
-
-static int img_read_close(AVFormatContext *s1)
-{
- return 0;
-}
-
-/******************************************************/
-/* image output */
-
-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;
-
- return 0;
+ return AV_CODEC_ID_NONE;
}
-static int img_write_packet(AVFormatContext *s, AVPacket *pkt)
+enum AVCodecID ff_guess_image2_codec(const char *filename)
{
- VideoData *img = s->priv_data;
- ByteIOContext pb1, *pb;
- char filename[1024];
-
- if (!img->is_pipe) {
- if (get_frame_filename(filename, sizeof(filename),
- img->path, img->img_number) < 0 && img->img_number>1)
- return AVERROR_IO;
- pb = &pb1;
- if (url_fopen(pb, filename, URL_WRONLY) < 0)
- return AVERROR_IO;
- } else {
- pb = &s->pb;
- }
-
- put_buffer(pb, pkt->data, pkt->size);
- put_flush_packet(pb);
- if (!img->is_pipe) {
- url_fclose(pb);
- }
-
- img->img_number++;
- return 0;
-}
-
-static int img_write_trailer(AVFormatContext *s)
-{
- return 0;
-}
-
-/* input */
-
-static AVInputFormat image2_iformat = {
- "image2",
- "image2 sequence",
- sizeof(VideoData),
- image_probe,
- img_read_header,
- img_read_packet,
- img_read_close,
- NULL,
- NULL,
- AVFMT_NOFILE,
-};
-
-static AVInputFormat image2pipe_iformat = {
- "image2pipe",
- "piped image2 sequence",
- sizeof(VideoData),
- NULL, /* no probe */
- img_read_header,
- img_read_packet,
- img_read_close,
- NULL,
-};
-
-
-/* output */
-
-static AVOutputFormat image2_oformat = {
- "image2",
- "image2 sequence",
- "",
- "",
- sizeof(VideoData),
- CODEC_ID_NONE,
- CODEC_ID_MJPEG,
- img_write_header,
- img_write_packet,
- img_write_trailer,
- AVFMT_NOFILE,
-};
-
-static AVOutputFormat image2pipe_oformat = {
- "image2pipe",
- "piped image2 sequence",
- "",
- "",
- sizeof(VideoData),
- CODEC_ID_NONE,
- CODEC_ID_MJPEG,
- img_write_header,
- img_write_packet,
- img_write_trailer,
-};
-
-int img2_init(void)
-{
- av_register_input_format(&image2_iformat);
- av_register_output_format(&image2_oformat);
-
- av_register_input_format(&image2pipe_iformat);
- av_register_output_format(&image2pipe_oformat);
-
- return 0;
+ return av_str2id(img_tags, filename);
}
projects / ffmpeg / blobdiff