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gstffmpegcodecmap: Avoid string operations on NULL

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This commit is contained in:
Edward Hervey 2011-10-11 14:02:53 +02:00
parent 3b230ce9b6
commit b4ca4b5cfd
1 changed files with 22 additions and 19 deletions
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41
ext/ffmpeg/gstffmpegcodecmap.c
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@ -2377,23 +2377,26 @@ gst_ffmpeg_caps_with_codecid (enum CodecID codec_id,
{ {
const gchar *format; const gchar *format;
format = gst_structure_get_string (str, "format"); if ((format = gst_structure_get_string (str, "format"))) {
if (g_str_equal (format, "YUY2")) if (g_str_equal (format, "YUY2"))
context->pix_fmt = PIX_FMT_YUYV422; context->pix_fmt = PIX_FMT_YUYV422;
else if (g_str_equal (format, "I420")) else if (g_str_equal (format, "I420"))
context->pix_fmt = PIX_FMT_YUV420P; context->pix_fmt = PIX_FMT_YUV420P;
else if (g_str_equal (format, "A420")) else if (g_str_equal (format, "A420"))
context->pix_fmt = PIX_FMT_YUVA420P; context->pix_fmt = PIX_FMT_YUVA420P;
else if (g_str_equal (format, "Y41B")) else if (g_str_equal (format, "Y41B"))
context->pix_fmt = PIX_FMT_YUV411P; context->pix_fmt = PIX_FMT_YUV411P;
else if (g_str_equal (format, "Y42B")) else if (g_str_equal (format, "Y42B"))
context->pix_fmt = PIX_FMT_YUV422P; context->pix_fmt = PIX_FMT_YUV422P;
else if (g_str_equal (format, "YUV9")) else if (g_str_equal (format, "YUV9"))
context->pix_fmt = PIX_FMT_YUV410P; context->pix_fmt = PIX_FMT_YUV410P;
else { else {
GST_WARNING ("couldn't convert format %s" " to a pixel format", format); GST_WARNING ("couldn't convert format %s" " to a pixel format",
} format);
}
} else
GST_WARNING ("No specified format");
break; break;
} }
case CODEC_ID_H263P: case CODEC_ID_H263P:
@ -2858,11 +2861,11 @@ gst_ffmpeg_caps_to_codecid (const GstCaps * caps, AVCodecContext * context)
/* WMV3 unless the fourcc exists and says otherwise */ /* WMV3 unless the fourcc exists and says otherwise */
id = CODEC_ID_WMV3; id = CODEC_ID_WMV3;
format = gst_structure_get_string (structure, "format");
if (g_str_equal (format, "WVC1") || g_str_equal (format, "WMVA")) { if ((format = gst_structure_get_string (structure, "format")) &&
(g_str_equal (format, "WVC1") || g_str_equal (format, "WMVA")))
id = CODEC_ID_VC1; id = CODEC_ID_VC1;
}
break; break;
} }
} }