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tageditor
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Only warn when no values have been specified to be set 

Allows applying file layout changes without modifying
any values, attachments, ...
This commit is contained in:
Martchus 2016-11-18 16:57:42 +01:00
parent 88d79f48f4
commit 84ba55a0df
2 changed files with 11 additions and 9 deletions
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17
README.md
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@ -24,13 +24,7 @@ the end of an MP4/Matroska file.
In the CLI, this is controlled via `--tag-pos` option.
To enfore a specific `--tag-pos`, even if this requires the file to be rewritten, combine
with the `--force` option. So for forcing *faststart* the following options are required:
```
tageditor set --tag-pos front --force
```
Note: Putting tags at the beginning of the file is sometimes called *faststart*.
with the `--force` option.
ID3v2 tags and Vorbis/Opus comments can only be placed at the beginning. ID3v1 tags
can only be placed at the end of the file.
@ -42,6 +36,15 @@ only supported when dealing with Matroska files.
Note: This can not be implemented for MP4 since tags and index are tied to each other. When dealing
with MP4 files the index position will always be the same as the tag position.
#### Faststart
Putting the index at the beginning of the file is sometimes called *faststart*.
For forcing *faststart* via CLI the following options are required:
```
tageditor set --index-pos front --force
```
### Padding
Padding allows adding additional tag information without rewriting the entire file
or appending the tag. Usage of padding can be configured:

3
cli/mainfeatures.cpp
View File

@ -1066,8 +1066,7 @@ void setTagInfo(const SetTagInfoArgs &args)
&& !args.id3v1UsageArg.isPresent()
&& !args.id3v2UsageArg.isPresent()
&& !args.id3v2VersionArg.isPresent()) {
cerr << "Error: No fields/attachments have been specified." << endl;
return;
cerr << "Warning: No fields/attachments have been specified." << endl;
}
// determine required targets
vector<TagTarget> requiredTargets;