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	avconv: fix some bugs introduced in 630902a1e1
				
					
				
			These caused scrambled error messages to be printed and floating point exceptions. For example when there was no decoder available for a stream. Signed-off-by: Anton Khirnov <anton@khirnov.net>
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						 Anton Khirnov
						Anton Khirnov
					
				
			
			
				
	
			
			
			
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							| @@ -1822,7 +1822,7 @@ static int init_input_stream(int ist_index, OutputStream *output_streams, int nb | ||||
|     if (ist->decoding_needed) { | ||||
|         AVCodec *codec = ist->dec; | ||||
|         if (!codec) { | ||||
|             snprintf(error, sizeof(error), "Decoder (codec id %d) not found for input stream #%d.%d", | ||||
|             snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d.%d", | ||||
|                     ist->st->codec->codec_id, ist->file_index, ist->st->index); | ||||
|             return AVERROR(EINVAL); | ||||
|         } | ||||
| @@ -1838,7 +1838,7 @@ static int init_input_stream(int ist_index, OutputStream *output_streams, int nb | ||||
|         } | ||||
|  | ||||
|         if (avcodec_open2(ist->st->codec, codec, &ist->opts) < 0) { | ||||
|             snprintf(error, sizeof(error), "Error while opening decoder for input stream #%d.%d", | ||||
|             snprintf(error, error_len, "Error while opening decoder for input stream #%d.%d", | ||||
|                     ist->file_index, ist->st->index); | ||||
|             return AVERROR(EINVAL); | ||||
|         } | ||||
| @@ -2150,7 +2150,7 @@ static int transcode_init(OutputFile *output_files, | ||||
|  | ||||
|     /* init input streams */ | ||||
|     for (i = 0; i < nb_input_streams; i++) | ||||
|         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error)) < 0)) | ||||
|         if ((ret = init_input_stream(i, output_streams, nb_output_streams, error, sizeof(error))) < 0) | ||||
|             goto dump_format; | ||||
|  | ||||
|     /* open files and write file headers */ | ||||
|   | ||||
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