ffmpeg must be configured as --enable-shared and installed prior
to compilation of mlt.
- Oddities
-
- There seems to be a discrepancy between audio and video pts (time
- stamps) which causes audio seeking to be unreliable in some cases.
- If audio playback is broken, try adding discrepancy=3 as a
- property.
-
- Not sure of the exact reasons, but am investigating.
-
Known Bugs
- Fixed frame rate.
Audio sync discrepancy with some content.
Not all libavformat supported formats are seekable.
ogg is currently broken.
none
+ resample
+
+ Description
+
+ Adjust an audio stream's sampling rate
+
+ Constructor Argument
+
+ frequency - a numeric value for the new sample rate
+
+ Initialisation Properties
+
+ int in - in point
+ int out - out point
+
+ Mutable Properties
+
+ int frequency - the target sample rate
+
+ Dependencies
+
+ libresample
+
+ Known Bugs
+
+ none
+
+ rescale
+
+ Description
+
+ Scale the producer video frame size to match the consumer.
+
+ Constructor Argument
+
+ interpolation - the rescaling method, one of:
+ nearest (lowest quality, fastest),
+ tiles,
+ bilinear (good quality, moderate speed),
+ hyper (best quality, slowest)
+
+ Initialisation Properties
+
+ int in - in point
+ int out - out point
+
+ Mutable Properties
+
+ string interpolation - see constructor argument above
+
+ If a property "consumer_aspect_ratio" exists on the frame, then
+ rescaler normalises the producer's aspect ratio and maximises the
+ size of the frame, but may not produce the consumer's requested
+ dimension. Therefore, this option works best in conjunction with the
+ resize filter. This behavior can be disabled by another service by
+ either removing the property, setting it to zero, or setting
+ frame property "distort" to 1.
+
+ Dependencies
+
+ libgdk_pixbuf-2.0, libglib-2.0, libgobject-2.0, libgmodule-2.0
+
+ Known Bugs
+
+ none
+
volume
Description
none
- resample
+ watermark
Description
- Adjust an audio stream's sampling rate
+ Add a watermark to the frames.
Constructor Argument
- frequency - a numeric value for the new sample rate
+ resource - the producer to use (ie: a .png)
Initialisation Properties
+ string resource - the producer to use
+ string factory - producer required for the resource ('fezzik')
+ string geometry - composite geometry
+ string distort - control scaling
int in - in point
int out - out point
Mutable Properties
- int frequency - the target sample rate
-
- Dependencies
-
- libresample
-
- Known Bugs
-
none
- rescale
-
- Description
-
- Scale the producer video frame size to match the consumer.
-
- Constructor Argument
-
- interpolation - the rescaling method, one of:
- nearest (lowest quality, fastest),
- tiles,
- bilinear (good quality, moderate speed),
- hyper (best quality, slowest)
-
- Initialisation Properties
-
- int in - in point
- int out - out point
-
- Mutable Properties
-
- string interpolation - see constructor argument above
-
- If a property "consumer_aspect_ratio" exists on the frame, then
- rescaler normalises the producer's aspect ratio and maximises the
- size of the frame, but may not produce the consumer's requested
- dimension. Therefore, this option works best in conjunction with the
- resize filter. This behavior can be disabled by another service by
- either removing the property, setting it to zero, or setting
- frame property "distort" to 1.
-
Dependencies
- libgdk_pixbuf-2.0, libglib-2.0, libgobject-2.0, libgmodule-2.0
+ mlt core modules and optionally, fezzik
Known Bugs
projects / melted / blobdiff