[FFmpeg-cvslog] tools/pktdumper: dump extradata buffers
Peter Ross
git at videolan.org
Tue Jul 1 09:57:12 EEST 2025
ffmpeg | branch: master | Peter Ross <pross at xvid.org> | Sat Oct 15 07:59:50 2022 +1100| [3b9dbda49bb16a7e89fce9bd91108a33c638f8e6] | committer: Peter Ross
tools/pktdumper: dump extradata buffers
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3b9dbda49bb16a7e89fce9bd91108a33c638f8e6
---
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,
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