diff options
Diffstat (limited to 'contrib/ffmpeg/libavformat/img2.c')
| -rw-r--r-- | contrib/ffmpeg/libavformat/img2.c | 428 |
1 files changed, 0 insertions, 428 deletions
diff --git a/contrib/ffmpeg/libavformat/img2.c b/contrib/ffmpeg/libavformat/img2.c deleted file mode 100644 index fa67ee742..000000000 --- a/contrib/ffmpeg/libavformat/img2.c +++ /dev/null @@ -1,428 +0,0 @@ -/* - * Image format - * Copyright (c) 2000, 2001, 2002 Fabrice Bellard. - * Copyright (c) 2004 Michael Niedermayer - * - * 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 "avformat.h" - -typedef struct { - int img_first; - int img_last; - int img_number; - int img_count; - int is_pipe; - char path[1024]; -} VideoData; - -typedef struct { - enum CodecID id; - const char *str; -} IdStrMap; - -static const IdStrMap img_tags[] = { - { CODEC_ID_MJPEG , "jpeg"}, - { CODEC_ID_MJPEG , "jpg"}, - { CODEC_ID_LJPEG , "ljpg"}, - { CODEC_ID_PNG , "png"}, - { CODEC_ID_PPM , "ppm"}, - { CODEC_ID_PGM , "pgm"}, - { CODEC_ID_PGMYUV , "pgmyuv"}, - { CODEC_ID_PBM , "pbm"}, - { CODEC_ID_PAM , "pam"}, - { CODEC_ID_MPEG1VIDEO, "mpg1-img"}, - { CODEC_ID_MPEG2VIDEO, "mpg2-img"}, - { CODEC_ID_MPEG4 , "mpg4-img"}, - { CODEC_ID_FFV1 , "ffv1-img"}, - { CODEC_ID_RAWVIDEO , "y"}, - { CODEC_ID_BMP , "bmp"}, - { CODEC_ID_GIF , "gif"}, - { CODEC_ID_TARGA , "tga"}, - { CODEC_ID_TIFF , "tiff"}, - {0, NULL} -}; - -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 enum CodecID av_str2id(const IdStrMap *tags, const char *str) -{ - str= strrchr(str, '.'); - if(!str) return 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; - } - - tags++; - } - return CODEC_ID_NONE; -} - -/* 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 (av_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 (av_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 (p->filename && av_str2id(img_tags, p->filename)) { - if (av_filename_number_test(p->filename)) - return AVPROBE_SCORE_MAX; - else - return AVPROBE_SCORE_MAX/2; - } - return 0; -} - -enum CodecID av_guess_image2_codec(const char *filename){ - return av_str2id(img_tags, filename); -} - -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) { - return AVERROR(ENOMEM); - } - - pstrcpy(s->path, sizeof(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; - st->need_parsing= 1; - } - - if (!ap->time_base.num) { - av_set_pts_info(st, 60, 1, 25); - } else { - av_set_pts_info(st, 60, ap->time_base.num, ap->time_base.den); - } - - if(ap->width && ap->height){ - st->codec->width = ap->width; - st->codec->height= ap->height; - } - - if (!s->is_pipe) { - if (find_image_range(&first_index, &last_index, s->path) < 0) - return AVERROR_IO; - s->img_first = first_index; - s->img_last = last_index; - s->img_number = first_index; - /* compute duration */ - st->start_time = 0; - st->duration = last_index - first_index + 1; - } - - if(ap->video_codec_id){ - st->codec->codec_type = CODEC_TYPE_VIDEO; - st->codec->codec_id = ap->video_codec_id; - }else if(ap->audio_codec_id){ - st->codec->codec_type = CODEC_TYPE_AUDIO; - st->codec->codec_id = ap->audio_codec_id; - }else{ - st->codec->codec_type = CODEC_TYPE_VIDEO; - st->codec->codec_id = av_str2id(img_tags, s->path); - } - if(st->codec->codec_type == CODEC_TYPE_VIDEO && ap->pix_fmt != PIX_FMT_NONE) - st->codec->pix_fmt = ap->pix_fmt; - - return 0; -} - -static int img_read_packet(AVFormatContext *s1, AVPacket *pkt) -{ - VideoData *s = s1->priv_data; - char filename[1024]; - int i; - int size[3]={0}, ret[3]={0}; - ByteIOContext f1[3], *f[3]= {&f1[0], &f1[1], &f1[2]}; - AVCodecContext *codec= s1->streams[0]->codec; - - if (!s->is_pipe) { - /* loop over input */ - if (s1->loop_input && s->img_number > s->img_last) { - s->img_number = s->img_first; - } - if (av_get_frame_filename(filename, sizeof(filename), - s->path, s->img_number)<0 && s->img_number > 1) - return AVERROR_IO; - for(i=0; i<3; i++){ - if (url_fopen(f[i], filename, URL_RDONLY) < 0) - return AVERROR_IO; - size[i]= url_fsize(f[i]); - - if(codec->codec_id != CODEC_ID_RAWVIDEO) - break; - filename[ strlen(filename) - 1 ]= 'U' + i; - } - - if(codec->codec_id == CODEC_ID_RAWVIDEO && !codec->width) - infer_size(&codec->width, &codec->height, size[0]); - } else { - f[0] = &s1->pb; - if (url_feof(f[0])) - return AVERROR_IO; - size[0]= 4096; - } - - av_new_packet(pkt, size[0] + size[1] + size[2]); - pkt->stream_index = 0; - pkt->flags |= PKT_FLAG_KEY; - - pkt->size= 0; - for(i=0; i<3; i++){ - if(size[i]){ - ret[i]= get_buffer(f[i], pkt->data + pkt->size, size[i]); - if (!s->is_pipe) - url_fclose(f[i]); - if(ret[i]>0) - pkt->size += ret[i]; - } - } - - if (ret[0] <= 0 || ret[1]<0 || ret[2]<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; -} - -#ifdef CONFIG_MUXERS -/******************************************************/ -/* image output */ - -static int img_write_header(AVFormatContext *s) -{ - VideoData *img = s->priv_data; - - img->img_number = 1; - pstrcpy(img->path, sizeof(img->path), s->filename); - - /* find format */ - if (s->oformat->flags & AVFMT_NOFILE) - img->is_pipe = 0; - else - img->is_pipe = 1; - - return 0; -} - -static int img_write_packet(AVFormatContext *s, AVPacket *pkt) -{ - VideoData *img = s->priv_data; - ByteIOContext pb1[3], *pb[3]= {&pb1[0], &pb1[1], &pb1[2]}; - char filename[1024]; - AVCodecContext *codec= s->streams[ pkt->stream_index ]->codec; - int i; - - if (!img->is_pipe) { - if (av_get_frame_filename(filename, sizeof(filename), - img->path, img->img_number) < 0 && img->img_number>1) - return AVERROR_IO; - for(i=0; i<3; i++){ - if (url_fopen(pb[i], filename, URL_WRONLY) < 0) - return AVERROR_IO; - - if(codec->codec_id != CODEC_ID_RAWVIDEO) - break; - filename[ strlen(filename) - 1 ]= 'U' + i; - } - } else { - pb[0] = &s->pb; - } - - if(codec->codec_id == CODEC_ID_RAWVIDEO){ - int ysize = codec->width * codec->height; - put_buffer(pb[0], pkt->data , ysize); - put_buffer(pb[1], pkt->data + ysize, (pkt->size - ysize)/2); - put_buffer(pb[2], pkt->data + ysize +(pkt->size - ysize)/2, (pkt->size - ysize)/2); - put_flush_packet(pb[1]); - put_flush_packet(pb[2]); - url_fclose(pb[1]); - url_fclose(pb[2]); - }else{ - put_buffer(pb[0], pkt->data, pkt->size); - } - put_flush_packet(pb[0]); - if (!img->is_pipe) { - url_fclose(pb[0]); - } - - img->img_number++; - return 0; -} - -static int img_write_trailer(AVFormatContext *s) -{ - return 0; -} - -#endif /* CONFIG_MUXERS */ - -/* input */ -#ifdef CONFIG_IMAGE2_DEMUXER -AVInputFormat image2_demuxer = { - "image2", - "image2 sequence", - sizeof(VideoData), - image_probe, - img_read_header, - img_read_packet, - img_read_close, - NULL, - NULL, - AVFMT_NOFILE, -}; -#endif -#ifdef CONFIG_IMAGE2PIPE_DEMUXER -AVInputFormat image2pipe_demuxer = { - "image2pipe", - "piped image2 sequence", - sizeof(VideoData), - NULL, /* no probe */ - img_read_header, - img_read_packet, - img_read_close, - NULL, -}; -#endif - -/* output */ -#ifdef CONFIG_IMAGE2_MUXER -AVOutputFormat image2_muxer = { - "image2", - "image2 sequence", - "", - "", - sizeof(VideoData), - CODEC_ID_NONE, - CODEC_ID_MJPEG, - img_write_header, - img_write_packet, - img_write_trailer, - AVFMT_NOFILE, -}; -#endif -#ifdef CONFIG_IMAGE2PIPE_MUXER -AVOutputFormat image2pipe_muxer = { - "image2pipe", - "piped image2 sequence", - "", - "", - sizeof(VideoData), - CODEC_ID_NONE, - CODEC_ID_MJPEG, - img_write_header, - img_write_packet, - img_write_trailer, -}; -#endif |