[FFmpeg-devel] [PATCH] tools/pktdumper: dump extradata buffers

[FFmpeg-devel] [PATCH] tools/pktdumper: dump extradata buffers

[Peter Ross]

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---

useful for re'ing files with extradata

 tools/pktdumper.c | 28 ++++++++++++++++++++++++++--
 1 file changed, 26 insertions(+), 2 deletions(-)

diff --git a/tools/pktdumper.c b/tools/pktdumper.c
index c51f5c8922..d7d3147b22 100644
--- a/tools/pktdumper.c
+++ b/tools/pktdumper.c
@@ -37,6 +37,7 @@
 
 #define FILENAME_BUF_SIZE 4096
 #define PKTFILESUFF "_%08" PRId64 "_%02d_%010" PRId64 "_%06d_%c.bin"
+#define EXTRADATAFILESUFF "_extradata_%02d_%06d.bin"
 
 static int usage(int ret)
 {
@@ -52,6 +53,7 @@ static int usage(int ret)
 int main(int argc, char **argv)
 {
     char fntemplate[FILENAME_BUF_SIZE];
+    char fntemplate2[FILENAME_BUF_SIZE];
     char pktfilename[FILENAME_BUF_SIZE];
     AVFormatContext *fctx = NULL;
     AVPacket *pkt;
@@ -86,8 +88,6 @@ int main(int argc, char **argv)
         fprintf(stderr, "filename too long\n");
         return usage(1);
     }
-    strcat(fntemplate, PKTFILESUFF);
-    printf("FNTEMPLATE: '%s'\n", fntemplate);
 
     err = avformat_open_input(&fctx, argv[1], NULL, NULL);
     if (err < 0) {
@@ -107,6 +107,30 @@ int main(int argc, char **argv)
         return 1;
     }
 
+    strcpy(fntemplate2, fntemplate);
+    strcat(fntemplate2, EXTRADATAFILESUFF);
+
+    for (int i = 0; i < fctx->nb_streams; i++) {
+        AVCodecParameters * par = fctx->streams[i]->codecpar;
+        int fd;
+        if (par->extradata_size) {
+            snprintf(pktfilename, sizeof(pktfilename), fntemplate2, i, par->extradata_size);
+            printf(EXTRADATAFILESUFF "\n", i, par->extradata_size);
+            if (!nowrite) {
+                fd  = open(pktfilename, O_WRONLY | O_CREAT, 0644);
+                err = write(fd, par->extradata, par->extradata_size);
+                if (err < 0) {
+                    fprintf(stderr, "write: error %d\n", err);
+                    return 1;
+                }
+                close(fd);
+            }
+        }
+    }
+
+    strcat(fntemplate, PKTFILESUFF);
+    printf("FNTEMPLATE: '%s'\n", fntemplate);
+
     while ((err = av_read_frame(fctx, pkt)) >= 0) {
         int fd;
         snprintf(pktfilename, sizeof(pktfilename), fntemplate, pktnum,
-- 
2.47.2

-- Peter
(A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B)

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