@@ -15,6 +15,7 @@ version next:

 - amerge audio filter

 - Automatic thread count based on detection number of (available) CPU cores

 - y41p Brooktree Uncompressed 4:1:1 12-bit encoder and decoder

+- ffprobe -show_error option

 version 0.9:

@@ -94,6 +94,11 @@ For example for printing the output in JSON format, specify:

 For more details on the available output printing formats, see the

 Writers section below.

+@item -show_error

+Show information about the error found when trying to probe the input.

+

+The error information is printed within a section with name "ERROR".

+

 @item -show_format

 Show information about the container format of the input multimedia

 stream.

@@ -11,6 +11,7 @@

             <xsd:element name="packets"  type="ffprobe:packetsType" minOccurs="0" maxOccurs="1" />

             <xsd:element name="streams"  type="ffprobe:streamsType" minOccurs="0" maxOccurs="1" />

             <xsd:element name="format"   type="ffprobe:formatType"  minOccurs="0" maxOccurs="1" />

+            <xsd:element name="error"    type="ffprobe:errorType"   minOccurs="0" maxOccurs="1" />

         </xsd:sequence>

     </xsd:complexType>

@@ -93,4 +94,9 @@

       <xsd:attribute name="key"   type="xsd:string" use="required"/>

       <xsd:attribute name="value" type="xsd:string" use="required"/>

     </xsd:complexType>

+

+    <xsd:complexType name="errorType">

+      <xsd:attribute name="code"   type="xsd:int"    use="required"/>

+      <xsd:attribute name="string" type="xsd:string" use="required"/>

+    </xsd:complexType>

 </xsd:schema>

@@ -37,6 +37,7 @@

 const char program_name[] = "ffprobe";

 const int program_birth_year = 2007;

+static int do_show_error   = 0;

 static int do_show_format  = 0;

 static int do_show_packets = 0;

 static int do_show_streams = 0;

@@ -1322,6 +1323,22 @@ static void show_format(WriterContext *w, AVFormatContext *fmt_ctx)

     fflush(stdout);

 }

+static void show_error(WriterContext *w, int err)

+{

+    char errbuf[128];

+    const char *errbuf_ptr = errbuf;

+

+    if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)

+        errbuf_ptr = strerror(AVUNERROR(err));

+

+    writer_print_chapter_header(w, "error");

+    print_section_header("error");

+    print_int("code", err);

+    print_str("string", errbuf_ptr);

+    print_section_footer("error");

+    writer_print_chapter_footer(w, "error");

+}

+

 static int open_input_file(AVFormatContext **fmt_ctx_ptr, const char *filename)

 {

     int err, i;

@@ -1405,6 +1422,8 @@ static int probe_file(const char *filename)

         PRINT_CHAPTER(streams);

         PRINT_CHAPTER(format);

         avformat_close_input(&fmt_ctx);

+    } else if (do_show_error) {

+        show_error(wctx, ret);

     }

     writer_print_footer(wctx);

     writer_close(&wctx);

@@ -1478,6 +1497,7 @@ static const OptionDef options[] = {

       "prettify the format of displayed values, make it more human readable" },

     { "print_format", OPT_STRING | HAS_ARG, {(void*)&print_format},

       "set the output printing format (available formats are: default, compact, csv, json, xml)", "format" },

+    { "show_error",   OPT_BOOL, {(void*)&do_show_error} ,  "show probing error" },

     { "show_format",  OPT_BOOL, {(void*)&do_show_format} , "show format/container info" },

     { "show_packets", OPT_BOOL, {(void*)&do_show_packets}, "show packets info" },

     { "show_streams", OPT_BOOL, {(void*)&do_show_streams}, "show streams info" },