ffmpeg.c:3192: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `new_subtitle_stream`.

ffmpeg.c:3192:5: Call
3190.     }
3191.     oc = output_files[nb_output_files - 1];
3192.     new_subtitle_stream(oc);
          ^
3193. }
3194. 

ffmpeg.c:3127:1: <LHS trace>
3125. }
3126. 
3127. static void new_subtitle_stream(AVFormatContext *oc)
      ^
3128. {
3129.     AVStream *st;

ffmpeg.c:3127:1: Parameter `oc->nb_streams`
  3125. }
  3126. 
  3127. static void new_subtitle_stream(AVFormatContext *oc)
        ^
  3128. {
  3129.     AVStream *st;

ffmpeg.c:3132:10: Call
  3130.     AVCodecContext *subtitle_enc;
  3131. 
  3132.     st = av_new_stream(oc, oc->nb_streams);
                 ^
  3133.     if (!st) {
  3134.         fprintf(stderr, "Could not alloc stream\n");

libavformat/utils.c:2245:1: Parameter `s->nb_streams`
    2243. }
    2244. 
    2245. AVStream *av_new_stream(AVFormatContext *s, int id)
          ^
    2246. {
    2247.     AVStream *st;

ffmpeg.c:3139:5: Binary operation: ([0, +oo] - 1):unsigned32 by call to `new_subtitle_stream` 
  3137.     avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
  3138. 
  3139.     bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
            ^
  3140.     subtitle_bitstream_filters= NULL;
  3141. 

static void new_subtitle_stream(AVFormatContext *oc)
{
    AVStream *st;
    AVCodecContext *subtitle_enc;
    st = av_new_stream(oc, oc->nb_streams);
    if (!st) {
        fprintf(stderr, "Could not alloc stream\n");
        av_exit(1);
    }
    avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);
    bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;
    subtitle_bitstream_filters= NULL;
    subtitle_enc = st->codec;
    subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;
    if (subtitle_stream_copy) {
        st->stream_copy = 1;
    } else {
        set_context_opts(avctx_opts[CODEC_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
        subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 1);
    }
    if (subtitle_language) {
        av_strlcpy(st->language, subtitle_language, sizeof(st->language));
        av_free(subtitle_language);
        subtitle_language = NULL;
    }
    subtitle_disable = 0;
    av_freep(&subtitle_codec_name);
    subtitle_stream_copy = 0;
}
['static void opt_new_subtitle_stream(void)\n{\n    AVFormatContext *oc;\n    if (nb_output_files <= 0) {\n        fprintf(stderr, "At least one output file must be specified\\n");\n        av_exit(1);\n    }\n    oc = output_files[nb_output_files - 1];\n    new_subtitle_stream(oc);\n}', 'static void new_subtitle_stream(AVFormatContext *oc)\n{\n    AVStream *st;\n    AVCodecContext *subtitle_enc;\n    st = av_new_stream(oc, oc->nb_streams);\n    if (!st) {\n        fprintf(stderr, "Could not alloc stream\\n");\n        av_exit(1);\n    }\n    avcodec_get_context_defaults2(st->codec, CODEC_TYPE_SUBTITLE);\n    bitstream_filters[nb_output_files][oc->nb_streams - 1]= subtitle_bitstream_filters;\n    subtitle_bitstream_filters= NULL;\n    subtitle_enc = st->codec;\n    subtitle_enc->codec_type = CODEC_TYPE_SUBTITLE;\n    if (subtitle_stream_copy) {\n        st->stream_copy = 1;\n    } else {\n        set_context_opts(avctx_opts[CODEC_TYPE_SUBTITLE], subtitle_enc, AV_OPT_FLAG_SUBTITLE_PARAM | AV_OPT_FLAG_ENCODING_PARAM);\n        subtitle_enc->codec_id = find_codec_or_die(subtitle_codec_name, CODEC_TYPE_SUBTITLE, 1);\n    }\n    if (subtitle_language) {\n        av_strlcpy(st->language, subtitle_language, sizeof(st->language));\n        av_free(subtitle_language);\n        subtitle_language = NULL;\n    }\n    subtitle_disable = 0;\n    av_freep(&subtitle_codec_name);\n    subtitle_stream_copy = 0;\n}', 'AVStream *av_new_stream(AVFormatContext *s, int id)\n{\n    AVStream *st;\n    int i;\n    if (s->nb_streams >= MAX_STREAMS)\n        return NULL;\n    st = av_mallocz(sizeof(AVStream));\n    if (!st)\n        return NULL;\n    st->codec= avcodec_alloc_context();\n    if (s->iformat) {\n        st->codec->bit_rate = 0;\n    }\n    st->index = s->nb_streams;\n    st->id = id;\n    st->start_time = AV_NOPTS_VALUE;\n    st->duration = AV_NOPTS_VALUE;\n    st->cur_dts = 0;\n    st->first_dts = AV_NOPTS_VALUE;\n    av_set_pts_info(st, 33, 1, 90000);\n    st->last_IP_pts = AV_NOPTS_VALUE;\n    for(i=0; i<MAX_REORDER_DELAY+1; i++)\n        st->pts_buffer[i]= AV_NOPTS_VALUE;\n    s->streams[s->nb_streams++] = st;\n    return st;\n}']