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aviocat: Add support for specifying the input duration 

This avoids the caller having to calculate the byte rate if wanting
to push a file in a rate resembling realtime.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2014-01-16 10:01:03 +02:00
parent 03f2de5856
commit 87acd33c09
1 changed files with 14 additions and 2 deletions
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16
tools/aviocat.c
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@ -26,13 +26,13 @@
static int usage(const char *argv0, int ret)
{
fprintf(stderr, "%s [-b bytespersec] input_url output_url\n", argv0);
fprintf(stderr, "%s [-b bytespersec] [-d duration] input_url output_url\n", argv0);
return ret;
}
int main(int argc, char **argv)
{
int bps = 0, ret, i;
int bps = 0, duration = 0, ret, i;
const char *input_url = NULL, *output_url = NULL;
int64_t stream_pos = 0;
int64_t start_time;
@ -46,6 +46,9 @@ int main(int argc, char **argv)
if (!strcmp(argv[i], "-b") && i + 1 < argc) {
bps = atoi(argv[i + 1]);
i++;
} else if (!strcmp(argv[i], "-d") && i + 1 < argc) {
duration = atoi(argv[i + 1]);
i++;
} else if (!input_url) {
input_url = argv[i];
} else if (!output_url) {
@ -63,6 +66,15 @@ int main(int argc, char **argv)
fprintf(stderr, "Unable to open %s: %s\n", input_url, errbuf);
return 1;
}
if (duration && !bps) {
int64_t size = avio_size(input);
if (size < 0) {
av_strerror(ret, errbuf, sizeof(errbuf));
fprintf(stderr, "Unable to get size of %s: %s\n", input_url, errbuf);
goto fail;
}
bps = size / duration;
}
ret = avio_open2(&output, output_url, AVIO_FLAG_WRITE, NULL, NULL);
if (ret) {
av_strerror(ret, errbuf, sizeof(errbuf));