hotfix: InputFile::seek at the exact frame

Clement Champetier · Clement Champetier · commit a35585f8c34a · 2015-05-05T14:16:57.000+02:00
Update documentation of InputFile::seekxxx functions.
diff --git a/src/AvTranscoder/file/InputFile.cpp b/src/AvTranscoder/file/InputFile.cpp
@@ -86,13 +86,13 @@ bool InputFile::readNextPacket( CodedData& data, const size_t streamIndex )
 void InputFile::seekAtFrame( const size_t frame )
 {
 	uint64_t position = frame / getFps() * AV_TIME_BASE;
-	_formatContext.seek( position, AVSEEK_FLAG_BACKWARD );
+	_formatContext.seek( position, AVSEEK_FLAG_ANY );
 }
 
 void InputFile::seekAtTime( const double time )
 {
 	uint64_t position = time * AV_TIME_BASE;
-	_formatContext.seek( position, AVSEEK_FLAG_BACKWARD );
+	_formatContext.seek( position, AVSEEK_FLAG_ANY );
 }
 
 void InputFile::activateStream( const size_t streamIndex, bool activate )
diff --git a/src/AvTranscoder/file/InputFile.hpp b/src/AvTranscoder/file/InputFile.hpp
@@ -48,9 +48,9 @@ class AvExport InputFile
 	bool readNextPacket( CodedData& data, const size_t streamIndex );
 
 	/**
-	 * @brief Seek input stream at specified frame
-	 * @note clean also buffers in each InputStream
-	 * @return if next packet was read succefully
+	 * @brief Seek at a specific frame / time (in seconds)
+	 * @note Seek in file by using the default stream (according to ffmpeg)
+	 * @warning If the seek is done to a non key-frame, the decoding will start from the next key-frame
 	 **/
 	void seekAtFrame( const size_t frame );
 	void seekAtTime( const double time );

Original file line number	Diff line number	Diff line change
`@@ -86,13 +86,13 @@ bool InputFile::readNextPacket( CodedData& data, const size_t streamIndex )`
`86`	`86`	`void InputFile::seekAtFrame( const size_t frame )`
`87`	`87`	`{`
`88`	`88`	`uint64_t position = frame / getFps() * AV_TIME_BASE;`
`89`		`- _formatContext.seek( position, AVSEEK_FLAG_BACKWARD );`
	`89`	`+ _formatContext.seek( position, AVSEEK_FLAG_ANY );`
`90`	`90`	`}`
`91`	`91`
`92`	`92`	`void InputFile::seekAtTime( const double time )`
`93`	`93`	`{`
`94`	`94`	`uint64_t position = time * AV_TIME_BASE;`
`95`		`- _formatContext.seek( position, AVSEEK_FLAG_BACKWARD );`
	`95`	`+ _formatContext.seek( position, AVSEEK_FLAG_ANY );`
`96`	`96`	`}`
`97`	`97`
`98`	`98`	`void InputFile::activateStream( const size_t streamIndex, bool activate )`