Hi Mika,
On Thu, 4 Sep 2014, Mika Raento wrote:
This is a non-standard file that maps the MSS segment names to offsets
in the ISMV file. This can be used to build a custom MSS streaming
server without splitting the ISMV into separate files.
---
tools/ismindex.c | 118 ++++++++++++++++++++++++++++++++++++++++++++-----------
1 file changed, 96 insertions(+), 22 deletions(-)
Thanks - this looked good, pushed (with one pair of extra braces removed).
Some final/further comments below:
for (i = start_index; i < tracks->nb_tracks; i++) {
struct Track *track = tracks->tracks[i];
const char *type = track->is_video ? "video" : "audio";
snprintf(dirname, sizeof(dirname), "%sQualityLevels(%d)", output_prefix,
track->bitrate);
- mkdir(dirname, 0777);
+ if (split) {
+ if (mkdir(dirname, 0777) == -1 && errno != EEXIST) {
Nice - why didn't I think of that before?
+ ret = AVERROR(errno);
+ perror(dirname);
+ goto fail;
+ }
+ }
for (j = 0; j < track->chunks; j++) {
snprintf(filename, sizeof(filename), "%s/Fragments(%s=%"PRId64")",
dirname, type, track->offsets[j].time);
avio_seek(in, track->offsets[j].offset, SEEK_SET);
- write_fragment(filename, in);
+ if (ismf)
+ fprintf(out, "%s %"PRId64, filename, avio_tell(in));
+ if (split)
+ fragment_ret = write_fragment(filename, in);
+ else
+ fragment_ret = skip_fragment(in);
+ if (ismf)
+ fprintf(out, " %"PRId64"\n", avio_tell(in));
Now when I finally tested this, I noticed that you don't write the source
filename into the ismf file. If you only use one single ismv source file
that's obviously ok, but technically you could also have multiple
ismv/isma files (e.g. with one track each - that's how some samples I saw
seemed to do it), and then you're missing the mapping explaining which
file the byte offsets relate to. Would you be interested in adding the
source file name into the ismf index as well?
// Martin
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