Bon alors voilà les news j'ai fais des essais mais toujours pas de résultats concluants :
j'ai créer dans. ~/.avidemux/custom un fichier x264.js ( a partir d'un projet comme indiqué dans la doc ) que voici:
var app = new Avidemux();
app.video.codecPlugin("32BCB447-21C9-4210-AE9A-4FCE6C8588AE", "x264", "AQ=17", "<?xml version='1.0'?><x264Config><x264Options><threads>0</threads><deterministic>true</deterministic><threadedLookahead>-1</threadedLookahead><idcLevel>-1</idcLevel><vui><sarAsInput>true</sarAsInput><sarHeight>1</sarHeight><sarWidth>1</sarWidth><overscan>undefined</overscan><videoFormat>undefined</videoFormat><fullRangeSamples>false</fullRangeSamples><colorPrimaries>undefined</colorPrimaries><transfer>undefined</transfer><colorMatrix>undefined</colorMatrix><chromaSampleLocation>0</chromaSampleLocation></vui><referenceFrames>8</referenceFrames><gopMaximumSize>250</gopMaximumSize><gopMinimumSize>25</gopMinimumSize><scenecutThreshold>40</scenecutThreshold><bFrames>16</bFrames><adaptiveBframeDecision>2</adaptiveBframeDecision><bFrameBias>0</bFrameBias><bFrameReferences>normal</bFrameReferences><loopFilter>true</loopFilter><loopFilterAlphaC0>0</loopFilterAlphaC0><loopFilterBeta>0</loopFilterBeta><cabac>true</cabac><interlaced>false</interlaced><constrainedIntraPrediction>false</constrainedIntraPrediction><cqmPreset>flat</cqmPreset><intra4x4Luma><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value></intra4x4Luma><intraChroma><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value></intraChroma><inter4x4Luma><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value></inter4x4Luma><interChroma><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value></interChroma><intra8x8Luma><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value></intra8x8Luma><inter8x8Luma><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value><value>16</value></inter8x8Luma><analyse><partitionI4x4>true</partitionI4x4><partitionI8x8>true</partitionI8x8><partitionP8x8>true</partitionP8x8><partitionP4x4>false</partitionP4x4><partitionB8x8>true</partitionB8x8><dct8x8>true</dct8x8><weightedPredictionPframes>smart</weightedPredictionPframes><weightedPrediction>true</weightedPrediction><directPredictionMode>auto</directPredictionMode><chromaLumaQuantiserDifference>0</chromaLumaQuantiserDifference><motionEstimationMethod>multi-hexagonal</motionEstimationMethod><motionVectorSearchRange>64</motionVectorSearchRange><motionVectorLength>-1</motionVectorLength><motionVectorThreadBuffer>-1</motionVectorThreadBuffer><subpixelRefinement>9</subpixelRefinement><chromaMotionEstimation>true</chromaMotionEstimation><mixedReferences>true</mixedReferences><trellis>allModeDecisions</trellis><fastPSkip>false</fastPSkip><dctDecimate>true</dctDecimate><psychoRdo>1</psychoRdo><noiseReduction>0</noiseReduction><interLumaDeadzone>21</interLumaDeadzone><intraLumaDeadzone>11</intraLumaDeadzone></analyse><rateControl><quantiserMinimum>10</quantiserMinimum><quantiserMaximum>51</quantiserMaximum><quantiserStep>4</quantiserStep><averageBitrateTolerance>1</averageBitrateTolerance><vbvMaximumBitrate>0</vbvMaximumBitrate><vbvBufferSize>0</vbvBufferSize><vbvInitialOccupancy>0.9</vbvInitialOccupancy><ipFrameQuantiser>1.4</ipFrameQuantiser><pbFrameQuantiser>1.3</pbFrameQuantiser><adaptiveQuantiserMode>variance</adaptiveQuantiserMode><adaptiveQuantiserStrength>1</adaptiveQuantiserStrength><mbTree>true</mbTree><frametypeLookahead>50</frametypeLookahead><quantiserCurveCompression>0.6</quantiserCurveCompression><reduceFluxBeforeCurveCompression>20</reduceFluxBeforeCurveCompression><reduceFluxAfterCurveCompression>0.5</reduceFluxAfterCurveCompression></rateControl><accessUnitDelimiters>false</accessUnitDelimiters><spsIdentifier>0</spsIdentifier><sliceMaxSize>0</sliceMaxSize><sliceMaxMacroblocks>0</sliceMaxMacroblocks><sliceCount>0</sliceCount></x264Options></x264Config>");
J'ai essayé de le placé dans ~/.avidemux/x264, de le renommé en "profil perso" dans les 2 dossiers tour a tour mais sans résultat car jamais présent dans le menu déroulant.
Y aurait il une erreur de ma part? surement mais je ne vois pas ou ? si vous avez les yeux mieux ouvert que les miens...