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fftools/ffmpeg_demux: stop modifying OptionsContext 

It should be input-only to this code.
This commit is contained in:
Anton Khirnov 2022-10-18 13:02:21 +02:00
parent 0d821edb40
commit 7aa5ea237f
1 changed files with 22 additions and 17 deletions
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39
fftools/ffmpeg_demux.c
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@ -823,18 +823,23 @@ int ifile_open(OptionsContext *o, const char *filename)
char * data_codec_name = NULL;
int scan_all_pmts_set = 0;
if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
o->stop_time = INT64_MAX;
int64_t start_time = o->start_time;
int64_t start_time_eof = o->start_time_eof;
int64_t stop_time = o->stop_time;
int64_t recording_time = o->recording_time;
if (stop_time != INT64_MAX && recording_time != INT64_MAX) {
stop_time = INT64_MAX;
av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
}
if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
if (o->stop_time <= start_time) {
if (stop_time != INT64_MAX && recording_time == INT64_MAX) {
int64_t start = start_time == AV_NOPTS_VALUE ? 0 : start_time;
if (stop_time <= start) {
av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
exit_program(1);
} else {
o->recording_time = o->stop_time - start_time;
recording_time = stop_time - start;
}
}
@ -959,32 +964,32 @@ int ifile_open(OptionsContext *o, const char *filename)
}
}
if (o->start_time != AV_NOPTS_VALUE && o->start_time_eof != AV_NOPTS_VALUE) {
if (start_time != AV_NOPTS_VALUE && start_time_eof != AV_NOPTS_VALUE) {
av_log(NULL, AV_LOG_WARNING, "Cannot use -ss and -sseof both, using -ss for %s\n", filename);
o->start_time_eof = AV_NOPTS_VALUE;
start_time_eof = AV_NOPTS_VALUE;
}
if (o->start_time_eof != AV_NOPTS_VALUE) {
if (o->start_time_eof >= 0) {
if (start_time_eof != AV_NOPTS_VALUE) {
if (start_time_eof >= 0) {
av_log(NULL, AV_LOG_ERROR, "-sseof value must be negative; aborting\n");
exit_program(1);
}
if (ic->duration > 0) {
o->start_time = o->start_time_eof + ic->duration;
if (o->start_time < 0) {
start_time = start_time_eof + ic->duration;
if (start_time < 0) {
av_log(NULL, AV_LOG_WARNING, "-sseof value seeks to before start of file %s; ignored\n", filename);
o->start_time = AV_NOPTS_VALUE;
start_time = AV_NOPTS_VALUE;
}
} else
av_log(NULL, AV_LOG_WARNING, "Cannot use -sseof, duration of %s not known\n", filename);
}
timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
timestamp = (start_time == AV_NOPTS_VALUE) ? 0 : start_time;
/* add the stream start time */
if (!o->seek_timestamp && ic->start_time != AV_NOPTS_VALUE)
timestamp += ic->start_time;
/* if seeking requested, we execute it */
if (o->start_time != AV_NOPTS_VALUE) {
if (start_time != AV_NOPTS_VALUE) {
int64_t seek_timestamp = timestamp;
if (!(ic->iformat->flags & AVFMT_SEEK_TO_PTS)) {
@ -1019,8 +1024,8 @@ int ifile_open(OptionsContext *o, const char *filename)
f->ctx = ic;
f->index = nb_input_files - 1;
f->ist_index = nb_input_streams - ic->nb_streams;
f->start_time = o->start_time;
f->recording_time = o->recording_time;
f->start_time = start_time;
f->recording_time = recording_time;
f->input_sync_ref = o->input_sync_ref;
f->input_ts_offset = o->input_ts_offset;
f->ts_offset = o->input_ts_offset - (copy_ts ? (start_at_zero && ic->start_time != AV_NOPTS_VALUE ? ic->start_time : 0) : timestamp);