* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
* Copyright (c) 2004 Michael Niedermayer
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * 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 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "libavutil/intreadwrite.h"
#include "libavutil/avstring.h"
-#include "avformat.h"
-#include <strings.h>
-
-typedef struct {
- int img_first;
- int img_last;
- int img_number;
- int img_count;
- int is_pipe;
- char path[1024];
-} VideoData;
+#include "internal.h"
typedef struct {
enum CodecID id;
{ CODEC_ID_SUNRAST , "im24"},
{ CODEC_ID_SUNRAST , "sunras"},
{ CODEC_ID_JPEG2000 , "jp2"},
+ { CODEC_ID_JPEG2000 , "jpc"},
{ CODEC_ID_DPX , "dpx"},
{ CODEC_ID_PICTOR , "pic"},
+ { CODEC_ID_XBM , "xbm"},
+ { CODEC_ID_XWD , "xwd"},
{ CODEC_ID_NONE , NULL}
};
-static const 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<FF_ARRAY_ELEMS(sizes);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, '.');
str++;
while (tags->id) {
- if (!strcasecmp(str, tags->str))
+ if (!av_strcasecmp(str, tags->str))
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)
+enum CodecID ff_guess_image2_codec(const char *filename)
{
- 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;
- if(url_exist(buf))
- return 0;
- return -1;
- }
- 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 read_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 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);
- }
-
- av_strlcpy(s->path, s1->filename, sizeof(s->path));
- 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 = AVSTREAM_PARSE_FULL;
- }
-
- 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(ENOENT);
- 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(s1->video_codec_id){
- st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- st->codec->codec_id = s1->video_codec_id;
- }else if(s1->audio_codec_id){
- st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codec->codec_id = s1->audio_codec_id;
- }else{
- st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- st->codec->codec_id = av_str2id(img_tags, s->path);
- }
- if(st->codec->codec_type == AVMEDIA_TYPE_VIDEO && ap->pix_fmt != PIX_FMT_NONE)
- st->codec->pix_fmt = ap->pix_fmt;
-
- return 0;
-}
-
-static int read_packet(AVFormatContext *s1, AVPacket *pkt)
-{
- VideoData *s = s1->priv_data;
- char filename[1024];
- int i;
- int size[3]={0}, ret[3]={0};
- ByteIOContext *f[3];
- 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 (s->img_number > s->img_last)
- return AVERROR_EOF;
- if (av_get_frame_filename(filename, sizeof(filename),
- s->path, s->img_number)<0 && s->img_number > 1)
- return AVERROR(EIO);
- for(i=0; i<3; i++){
- if (url_fopen(&f[i], filename, URL_RDONLY) < 0) {
- if(i==1)
- break;
- av_log(s1, AV_LOG_ERROR, "Could not open file : %s\n",filename);
- return AVERROR(EIO);
- }
- 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(EIO);
- size[0]= 4096;
- }
-
- av_new_packet(pkt, size[0] + size[1] + size[2]);
- pkt->stream_index = 0;
- pkt->flags |= AV_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(EIO); /* signal EOF */
- } else {
- s->img_count++;
- s->img_number++;
- return 0;
- }
-}
-
-#if CONFIG_IMAGE2_MUXER || CONFIG_IMAGE2PIPE_MUXER
-/******************************************************/
-/* image output */
-
-static int write_header(AVFormatContext *s)
-{
- VideoData *img = s->priv_data;
-
- img->img_number = 1;
- av_strlcpy(img->path, s->filename, sizeof(img->path));
-
- /* find format */
- if (s->oformat->flags & AVFMT_NOFILE)
- img->is_pipe = 0;
- else
- img->is_pipe = 1;
-
- return 0;
-}
-
-static int write_packet(AVFormatContext *s, AVPacket *pkt)
-{
- VideoData *img = s->priv_data;
- ByteIOContext *pb[3];
- 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) {
- av_log(s, AV_LOG_ERROR, "Could not get frame filename from pattern\n");
- return AVERROR(EIO);
- }
- for(i=0; i<3; i++){
- if (url_fopen(&pb[i], filename, URL_WRONLY) < 0) {
- av_log(s, AV_LOG_ERROR, "Could not open file : %s\n",filename);
- return AVERROR(EIO);
- }
-
- 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{
- if(av_str2id(img_tags, s->filename) == CODEC_ID_JPEG2000){
- AVStream *st = s->streams[0];
- if(st->codec->extradata_size > 8 &&
- AV_RL32(st->codec->extradata+4) == MKTAG('j','p','2','h')){
- if(pkt->size < 8 || AV_RL32(pkt->data+4) != MKTAG('j','p','2','c'))
- goto error;
- put_be32(pb[0], 12);
- put_tag (pb[0], "jP ");
- put_be32(pb[0], 0x0D0A870A); // signature
- put_be32(pb[0], 20);
- put_tag (pb[0], "ftyp");
- put_tag (pb[0], "jp2 ");
- put_be32(pb[0], 0);
- put_tag (pb[0], "jp2 ");
- put_buffer(pb[0], st->codec->extradata, st->codec->extradata_size);
- }else if(pkt->size < 8 ||
- (!st->codec->extradata_size &&
- AV_RL32(pkt->data+4) != MKTAG('j','P',' ',' '))){ // signature
- error:
- av_log(s, AV_LOG_ERROR, "malformated jpeg2000 codestream\n");
- return -1;
- }
- }
- 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;
-}
-
-#endif /* CONFIG_IMAGE2_MUXER || CONFIG_IMAGE2PIPE_MUXER */
-
-/* input */
-#if CONFIG_IMAGE2_DEMUXER
-AVInputFormat ff_image2_demuxer = {
- .name = "image2",
- .long_name = NULL_IF_CONFIG_SMALL("image2 sequence"),
- .priv_data_size = sizeof(VideoData),
- .read_probe = read_probe,
- .read_header = read_header,
- .read_packet = read_packet,
- .flags = AVFMT_NOFILE,
-};
-#endif
-#if CONFIG_IMAGE2PIPE_DEMUXER
-AVInputFormat ff_image2pipe_demuxer = {
- .name = "image2pipe",
- .long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"),
- .priv_data_size = sizeof(VideoData),
- .read_header = read_header,
- .read_packet = read_packet,
-};
-#endif
-
-/* output */
-#if CONFIG_IMAGE2_MUXER
-AVOutputFormat ff_image2_muxer = {
- .name = "image2",
- .long_name = NULL_IF_CONFIG_SMALL("image2 sequence"),
- .extensions = "bmp,jpeg,jpg,ljpg,pam,pbm,pcx,pgm,pgmyuv,png,"
- "ppm,sgi,tga,tif,tiff,jp2",
- .priv_data_size = sizeof(VideoData),
- .video_codec = CODEC_ID_MJPEG,
- .write_header = write_header,
- .write_packet = write_packet,
- .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS | AVFMT_NOFILE
-};
-#endif
-#if CONFIG_IMAGE2PIPE_MUXER
-AVOutputFormat ff_image2pipe_muxer = {
- .name = "image2pipe",
- .long_name = NULL_IF_CONFIG_SMALL("piped image2 sequence"),
- .priv_data_size = sizeof(VideoData),
- .video_codec = CODEC_ID_MJPEG,
- .write_header = write_header,
- .write_packet = write_packet,
- .flags = AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS
-};
-#endif
projects / ffmpeg / blobdiff