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</o:shapelayout></xml><![endif]--></head><body lang=FR link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hi,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I’m trying to decode MPEG2 Subtitle in TS MPEG2 file.<o:p></o:p></span></p><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'>There is no problem with an old version (02 december 2008) with rgba_palette code in AVSubtitleRect. rgba_palette was an (uint32_t *) variable.<o:p></o:p></span></pre><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'>Since recent version, ffmpeg has included rgba_palette in (uint8_t *) in data[1] table and we have got an 8 bits palette instead of 32 bits.<o:p></o:p></span></pre><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'>So, every subtitle are monocolors.<o:p></o:p></span></pre><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'>Is there something I have misunderstood or there is really a bug?<o:p></o:p></span></pre><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'><o:p> </o:p></span></pre><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'>This is some code to introduce my problem:<o:p></o:p></span></pre><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'><o:p> </o:p></span></pre><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'>// Main<o:p></o:p></span></pre><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:green'>// Decode subtitle frame<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:blue'>int</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'> nRes = avcodec_decode_subtitle(pCodecCtx, pSubtitle, &frameFinished, packet.data, packet.size);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:green'>// Did we get a subtitle frame?<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:blue'>if</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>(frameFinished != 0)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>{<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>nSize = pSubtitle->num_rects;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:blue'>for</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>(i = 0; i < nSize; ++i)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>{<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>int width = pSubtitle->rects[i].w;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>int height = pSubtitle->rects[i].h;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>SaveFrame(&pSubtitle->rects[i], width, height);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New"'>}<o:p></o:p></span></p><pre>}<o:p></o:p></pre><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'><o:p> </o:p></span></pre><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'><o:p> </o:p></span></pre><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'>// Save<o:p></o:p></span></pre><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:blue'>static</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:blue'>void</span> SaveFrame(AVSubtitleRect* pRect, <span style='color:blue'>int</span> width, <span style='color:blue'>int</span> height)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>{<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:blue'>char</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'> szImagename[32];<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>sprintf(szImagename, <span style='color:#A31515'>"d:\\tmp\\ST\\frame%d.ppm"</span>, iFrame);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>FILE* pImage=fopen(szImagename, <span style='color:#A31515'>"w"</span>);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:blue'>int</span><span style='font-size:10.0pt;font-family:"Courier New"'> x, y, v;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:blue'>for</span><span style='font-size:10.0pt;font-family:"Courier New"'>(y = 0; y < height; y++) <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>{<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:blue'>for</span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>(x = 0; x < width; x++) <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>{<o:p></o:p></span></p><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red;mso-fareast-language:EN-US'>// 20081202 version: v is uint32_t<o:p></o:p></span></pre><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:red'>v = pRect->rgba_palette[pRect->bitmap[y * width + x]];<o:p></o:p></span></p><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:red;mso-fareast-language:EN-US'>// recent version: v is uint8_t<o:p></o:p></span></pre><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New";color:red'>//v = pRect->pict.data[1][pRect->pict.data[0][y * width + x]];<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>putc((v >> 16) & 0xff, pImage);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>putc((v >> 8) & 0xff, pImage);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>putc((v >> 0) & 0xff, pImage); <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>}<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>}<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>}<o:p></o:p></span></p><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'><o:p> </o:p></span></pre><pre><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-language:EN-US'><o:p> </o:p></span></pre></div></body></html>