]> git.sesse.net Git - ffmpeg/blobdiff - libavformat/img2.c
Add Pictor/PC Paint to image2 muxer/demuxer
[ffmpeg] / libavformat / img2.c
index d870814b4e7ba503723548a0115632774b1a7963..5e553f9aea9c3632dc8540b7315d194e380bbeac 100644 (file)
@@ -1,26 +1,29 @@
 /*
  * 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 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 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,
+ * 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * 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"
 
-/* XXX: this is a hack */
-extern int loop_input;
+#include "libavutil/intreadwrite.h"
+#include "libavutil/avstring.h"
+#include "avformat.h"
+#include <strings.h>
 
 typedef struct {
     int img_first;
@@ -41,7 +44,9 @@ static const IdStrMap img_tags[] = {
     { CODEC_ID_MJPEG     , "jpg"},
     { CODEC_ID_LJPEG     , "ljpg"},
     { CODEC_ID_PNG       , "png"},
+    { CODEC_ID_PNG       , "mng"},
     { CODEC_ID_PPM       , "ppm"},
+    { CODEC_ID_PPM       , "pnm"},
     { CODEC_ID_PGM       , "pgm"},
     { CODEC_ID_PGMYUV    , "pgmyuv"},
     { CODEC_ID_PBM       , "pbm"},
@@ -51,10 +56,28 @@ static const IdStrMap img_tags[] = {
     { CODEC_ID_MPEG4     , "mpg4-img"},
     { CODEC_ID_FFV1      , "ffv1-img"},
     { CODEC_ID_RAWVIDEO  , "y"},
-    {0, NULL}
+    { CODEC_ID_BMP       , "bmp"},
+    { CODEC_ID_GIF       , "gif"},
+    { CODEC_ID_TARGA     , "tga"},
+    { CODEC_ID_TIFF      , "tiff"},
+    { CODEC_ID_TIFF      , "tif"},
+    { CODEC_ID_SGI       , "sgi"},
+    { CODEC_ID_PTX       , "ptx"},
+    { CODEC_ID_PCX       , "pcx"},
+    { CODEC_ID_SUNRAST   , "sun"},
+    { CODEC_ID_SUNRAST   , "ras"},
+    { CODEC_ID_SUNRAST   , "rs"},
+    { CODEC_ID_SUNRAST   , "im1"},
+    { CODEC_ID_SUNRAST   , "im8"},
+    { CODEC_ID_SUNRAST   , "im24"},
+    { CODEC_ID_SUNRAST   , "sunras"},
+    { CODEC_ID_JPEG2000  , "jp2"},
+    { CODEC_ID_DPX       , "dpx"},
+    { CODEC_ID_PICTOR    , "pic"},
+    { CODEC_ID_NONE      , NULL}
 };
 
-static int sizes[][2] = {
+static const int sizes[][2] = {
     { 640, 480 },
     { 720, 480 },
     { 720, 576 },
@@ -70,7 +93,7 @@ static int infer_size(int *width_ptr, int *height_ptr, int size)
 {
     int i;
 
-    for(i=0;i<sizeof(sizes)/sizeof(sizes[0]);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];
@@ -86,29 +109,16 @@ static enum CodecID av_str2id(const IdStrMap *tags, const char *str)
     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 (!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, 
+static int find_image_range(int *pfirst_index, int *plast_index,
                             const char *path)
 {
     char buf[1024];
@@ -116,17 +126,19 @@ static int find_image_range(int *pfirst_index, int *plast_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 = 
+        if (av_get_frame_filename(buf, sizeof(buf), path, first_index) < 0){
+            *pfirst_index =
             *plast_index = 1;
-            return 0;
+            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(;;) {
@@ -136,8 +148,8 @@ static int find_image_range(int *pfirst_index, int *plast_index,
                 range1 = 1;
             else
                 range1 = 2 * range;
-            if (get_frame_filename(buf, sizeof(buf), path, 
-                                   last_index + range1) < 0)
+            if (av_get_frame_filename(buf, sizeof(buf), path,
+                                      last_index + range1) < 0)
                 goto fail;
             if (!url_exist(buf))
                 break;
@@ -161,10 +173,13 @@ static int find_image_range(int *pfirst_index, int *plast_index,
 
 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;
+    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){
@@ -181,57 +196,55 @@ static int img_read_header(AVFormatContext *s1, AVFormatParameters *ap)
 
     st = av_new_stream(s1, 0);
     if (!st) {
-        return -ENOMEM;
+        return AVERROR(ENOMEM);
     }
 
-    strcpy(s->path, s1->filename);
+    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= 1;
+        st->need_parsing = AVSTREAM_PARSE_FULL;
     }
-        
-    if (!ap || !ap->frame_rate) {
-        st->codec.frame_rate      = 25;
-        st->codec.frame_rate_base = 1;
+
+    if (!ap->time_base.num) {
+        av_set_pts_info(st, 60, 1, 25);
     } else {
-        st->codec.frame_rate      = ap->frame_rate;
-        st->codec.frame_rate_base = ap->frame_rate_base;
+        av_set_pts_info(st, 60, ap->time_base.num, ap->time_base.den);
     }
-    
-    if(ap && ap->width && ap->height){
-        st->codec.width = ap->width;
-        st->codec.height= ap->height;
+
+    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;
+            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 = ((int64_t)AV_TIME_BASE * 
-                        (last_index - first_index + 1) * 
-                        st->codec.frame_rate_base) / st->codec.frame_rate;
+        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;
+
+    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 = CODEC_TYPE_VIDEO;
-        st->codec.codec_id = av_str2id(img_tags, s->path);
+        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;
 }
@@ -242,39 +255,45 @@ static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
     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;
+    ByteIOContext *f[3];
+    AVCodecContext *codec= s1->streams[0]->codec;
 
     if (!s->is_pipe) {
         /* loop over input */
-        if (loop_input && s->img_number > s->img_last) {
+        if (s1->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;
+        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)
-                return AVERROR_IO;
-            size[i]= url_filesize(url_fileno(f[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;
+        f[0] = s1->pb;
         if (url_feof(f[0]))
-            return AVERROR_IO;
+            return AVERROR(EIO);
         size[0]= 4096;
     }
 
     av_new_packet(pkt, size[0] + size[1] + size[2]);
     pkt->stream_index = 0;
-    pkt->flags |= PKT_FLAG_KEY;
+    pkt->flags |= AV_PKT_FLAG_KEY;
 
     pkt->size= 0;
     for(i=0; i<3; i++){
@@ -289,7 +308,7 @@ static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
 
     if (ret[0] <= 0 || ret[1]<0 || ret[2]<0) {
         av_free_packet(pkt);
-        return AVERROR_IO; /* signal EOF */
+        return AVERROR(EIO); /* signal EOF */
     } else {
         s->img_count++;
         s->img_number++;
@@ -297,11 +316,7 @@ static int img_read_packet(AVFormatContext *s1, AVPacket *pkt)
     }
 }
 
-static int img_read_close(AVFormatContext *s1)
-{
-    return 0;
-}
-
+#if CONFIG_IMAGE2_MUXER || CONFIG_IMAGE2PIPE_MUXER
 /******************************************************/
 /* image output */
 
@@ -310,51 +325,78 @@ static int img_write_header(AVFormatContext *s)
     VideoData *img = s->priv_data;
 
     img->img_number = 1;
-    strcpy(img->path, s->filename);
+    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 img_write_packet(AVFormatContext *s, AVPacket *pkt)
 {
     VideoData *img = s->priv_data;
-    ByteIOContext pb1[3], *pb[3]= {&pb1[0], &pb1[1], &pb1[2]};
+    ByteIOContext *pb[3];
     char filename[1024];
-    AVCodecContext *codec= &s->streams[ pkt->stream_index ]->codec;
+    AVCodecContext *codec= s->streams[ pkt->stream_index ]->codec;
     int i;
 
     if (!img->is_pipe) {
-        if (get_frame_filename(filename, sizeof(filename), 
-                               img->path, img->img_number) < 0 && img->img_number>1)
-            return AVERROR_IO;
+        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)
-                return AVERROR_IO;
-        
+            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;
+        pb[0] = s->pb;
     }
-    
+
     if(codec->codec_id == CODEC_ID_RAWVIDEO){
-        int size = (codec->width * codec->height)>>2;
-        put_buffer(pb[0], pkt->data         , 4*size);
-        put_buffer(pb[1], pkt->data + 4*size,   size);
-        put_buffer(pb[2], pkt->data + 5*size,   size);
+        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]);
@@ -366,57 +408,54 @@ static int img_write_packet(AVFormatContext *s, AVPacket *pkt)
     return 0;
 }
 
-static int img_write_trailer(AVFormatContext *s)
-{
-    return 0;
-}
+#endif /* CONFIG_IMAGE2_MUXER || CONFIG_IMAGE2PIPE_MUXER */
 
 /* input */
-
-static AVInputFormat image2_iformat = {
+#if CONFIG_IMAGE2_DEMUXER
+AVInputFormat image2_demuxer = {
     "image2",
-    "image2 sequence",
+    NULL_IF_CONFIG_SMALL("image2 sequence"),
     sizeof(VideoData),
     image_probe,
     img_read_header,
     img_read_packet,
-    img_read_close,
+    NULL,
     NULL,
     NULL,
     AVFMT_NOFILE,
 };
-
-static AVInputFormat image2pipe_iformat = {
+#endif
+#if CONFIG_IMAGE2PIPE_DEMUXER
+AVInputFormat image2pipe_demuxer = {
     "image2pipe",
-    "piped image2 sequence",
+    NULL_IF_CONFIG_SMALL("piped image2 sequence"),
     sizeof(VideoData),
     NULL, /* no probe */
     img_read_header,
     img_read_packet,
-    img_read_close,
-    NULL,
 };
-
+#endif
 
 /* output */
-
-static AVOutputFormat image2_oformat = {
+#if CONFIG_IMAGE2_MUXER
+AVOutputFormat image2_muxer = {
     "image2",
-    "image2 sequence",
-    "",
+    NULL_IF_CONFIG_SMALL("image2 sequence"),
     "",
+    "bmp,jpeg,jpg,ljpg,pam,pbm,pcx,pgm,pgmyuv,png,ppm,sgi,tif,tiff,jp2",
     sizeof(VideoData),
     CODEC_ID_NONE,
     CODEC_ID_MJPEG,
     img_write_header,
     img_write_packet,
-    img_write_trailer,
-    AVFMT_NOFILE,
+    NULL,
+    .flags= AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS | AVFMT_NOFILE
 };
-
-static AVOutputFormat image2pipe_oformat = {
+#endif
+#if CONFIG_IMAGE2PIPE_MUXER
+AVOutputFormat image2pipe_muxer = {
     "image2pipe",
-    "piped image2 sequence",
+    NULL_IF_CONFIG_SMALL("piped image2 sequence"),
     "",
     "",
     sizeof(VideoData),
@@ -424,16 +463,6 @@ static AVOutputFormat image2pipe_oformat = {
     CODEC_ID_MJPEG,
     img_write_header,
     img_write_packet,
-    img_write_trailer,
+    .flags= AVFMT_NOTIMESTAMPS | AVFMT_NODIMENSIONS
 };
-
-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;
-}
+#endif