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avformat/tee.c: steal bsf option before passing to fifo muxer

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Fix #7620
In the case tee muxer with both "bsf" and "use_fifo" parameters
will trigger this bug. Tee muxer will first steal parameters (like "f",
"select"...) and then "use_fifo" will try reading out remaining options
and pass them to fifo as option "format_options".
Current code miss the part of stealing "bsf" options.
This commit is contained in:
Jun Li 2019-10-13 14:14:25 -07:00 committed by Steven Liu
parent 6f2a3958cf
commit 155508c6e9
1 changed files with 11 additions and 4 deletions
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15
libavformat/tee.c
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@ -159,7 +159,7 @@ static void close_slaves(AVFormatContext *avf)
static int open_slave(AVFormatContext *avf, char *slave, TeeSlave *tee_slave)
{
int i, ret;
AVDictionary *options = NULL;
AVDictionary *options = NULL, *bsf_options = NULL;
AVDictionaryEntry *entry;
char *filename;
char *format = NULL, *select = NULL, *on_fail = NULL;
@ -186,6 +186,12 @@ static int open_slave(AVFormatContext *avf, char *slave, TeeSlave *tee_slave)
STEAL_OPTION("onfail", on_fail);
STEAL_OPTION("use_fifo", use_fifo);
STEAL_OPTION("fifo_options", fifo_options_str);
entry = NULL;
while ((entry = av_dict_get(options, "bsfs", entry, AV_DICT_IGNORE_SUFFIX))) {
/* trim out strlen("bsfs") characters from key */
av_dict_set(&bsf_options, entry->key + 4, entry->value, 0);
av_dict_set(&options, entry->key, NULL, 0);
}
ret = parse_slave_failure_policy_option(on_fail, tee_slave);
if (ret < 0) {
@ -311,8 +317,8 @@ static int open_slave(AVFormatContext *avf, char *slave, TeeSlave *tee_slave)
}
entry = NULL;
while (entry = av_dict_get(options, "bsfs", NULL, AV_DICT_IGNORE_SUFFIX)) {
const char *spec = entry->key + strlen("bsfs");
while (entry = av_dict_get(bsf_options, "", NULL, AV_DICT_IGNORE_SUFFIX)) {
const char *spec = entry->key;
if (*spec) {
if (strspn(spec, slave_bsfs_spec_sep) != 1) {
av_log(avf, AV_LOG_ERROR,
@ -352,7 +358,7 @@ static int open_slave(AVFormatContext *avf, char *slave, TeeSlave *tee_slave)
}
}
av_dict_set(&options, entry->key, NULL, 0);
av_dict_set(&bsf_options, entry->key, NULL, 0);
}
for (i = 0; i < avf->nb_streams; i++){
@ -399,6 +405,7 @@ end:
av_free(select);
av_free(on_fail);
av_dict_free(&options);
av_dict_free(&bsf_options);
av_freep(&tmp_select);
return ret;
}