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fftools/ffmpeg: store the input file index in InputFile 

Use it to simplify some code and fix two off-by-one errors.

Similar to what was previously done for OutputFile.
This commit is contained in:
Anton Khirnov 2022-03-21 17:21:46 +01:00
parent 9139ea4c8d
commit cc2b7f4625
2 changed files with 7 additions and 4 deletions
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2
fftools/ffmpeg.h
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@ -408,6 +408,8 @@ typedef struct InputStream {
} InputStream;
typedef struct InputFile {
int index;
AVFormatContext *ctx;
int eof_reached; /* true if eof reached */
int eagain; /* true if last read attempt returned EAGAIN */

9
fftools/ffmpeg_opt.c
View File

@ -1383,6 +1383,7 @@ static int open_input_file(OptionsContext *o, const char *filename)
f = ALLOC_ARRAY_ELEM(input_files, nb_input_files);
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;
@ -1398,11 +1399,11 @@ static int open_input_file(OptionsContext *o, const char *filename)
f->readrate = o->readrate ? o->readrate : 0.0;
if (f->readrate < 0.0f) {
av_log(NULL, AV_LOG_ERROR, "Option -readrate for Input #%d is %0.3f; it must be non-negative.\n", nb_input_files, f->readrate);
av_log(NULL, AV_LOG_ERROR, "Option -readrate for Input #%d is %0.3f; it must be non-negative.\n", f->index, f->readrate);
exit_program(1);
}
if (f->readrate && f->rate_emu) {
av_log(NULL, AV_LOG_WARNING, "Both -readrate and -re set for Input #%d. Using -readrate %0.3f.\n", nb_input_files, f->readrate);
av_log(NULL, AV_LOG_WARNING, "Both -readrate and -re set for Input #%d. Using -readrate %0.3f.\n", f->index, f->readrate);
f->rate_emu = 0;
}
@ -1435,7 +1436,7 @@ static int open_input_file(OptionsContext *o, const char *filename)
if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
"input file #%d (%s) is not a decoding option.\n", e->key,
option->help ? option->help : "", nb_input_files - 1,
option->help ? option->help : "", f->index,
filename);
exit_program(1);
}
@ -1445,7 +1446,7 @@ static int open_input_file(OptionsContext *o, const char *filename)
"likely reason is either wrong type (e.g. a video option with "
"no video streams) or that it is a private option of some decoder "
"which was not actually used for any stream.\n", e->key,
option->help ? option->help : "", nb_input_files - 1, filename);
option->help ? option->help : "", f->index, filename);
}
av_dict_free(&unused_opts);