AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
                                AVFormatContext *s, AVStream *st, AVCodec *codec)
{
    AVDictionary    *ret = NULL;
    AVDictionaryEntry *t = NULL;
    int            flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
                                      : AV_OPT_FLAG_DECODING_PARAM;
    char          prefix = 0;
    const AVClass    *cc = avcodec_get_class();

    if (!codec)
        codec            = s->oformat ? avcodec_find_encoder(codec_id)
                                      : avcodec_find_decoder(codec_id);

    switch (st->codec->codec_type) {
    case AVMEDIA_TYPE_VIDEO:
        prefix = 'v';
        flags |= AV_OPT_FLAG_VIDEO_PARAM;
        break;
    case AVMEDIA_TYPE_AUDIO:
        prefix = 'a';
        flags |= AV_OPT_FLAG_AUDIO_PARAM;
        break;
    case AVMEDIA_TYPE_SUBTITLE:
        prefix = 's';
        flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
        break;
    default:
        break;
    }

    while ((t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX))) {
        char *p = strchr(t->key, ':');

        /* check stream specification in opt name */
        if (p)
            switch (check_stream_specifier(s, st, p + 1)) {
            case  1: *p = 0; break;
            case  0:         continue;
            default:         return NULL;
            }

        if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
            (codec && codec->priv_class &&
             av_opt_find(&codec->priv_class, t->key, NULL, flags,
                         AV_OPT_SEARCH_FAKE_OBJ)))
            av_dict_set(&ret, t->key, t->value, 0);
        else if (t->key[0] == prefix &&
                 av_opt_find(&cc, t->key + 1, NULL, flags,
                             AV_OPT_SEARCH_FAKE_OBJ))
            av_dict_set(&ret, t->key + 1, t->value, 0);

        if (p)
            *p = ':';
    }
    return ret;
}
Ejemplo n.º 2
0
int plex_opt_subtitle_stream(void *optctx, const char *opt, const char *arg)
{
#if CONFIG_INLINEASS_FILTER
    InlineAssContext *m = NULL;
    int i, file_idx;
    char *p;
    char *map = av_strdup(arg);

    file_idx = strtol(map, &p, 0);
    if (file_idx >= nb_input_files || file_idx < 0) {
        av_log(NULL, AV_LOG_FATAL, "Invalid subtitle input file index: %d.\n", file_idx);
        goto finish;
    }

    for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
        if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
                    *p == ':' ? p + 1 : p) <= 0)
            continue;
        if (input_files[file_idx]->ctx->streams[i]->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE) {
            av_log(NULL, AV_LOG_ERROR, "Stream '%s' is not a subtitle stream.\n", arg);
            continue;
        }
        GROW_ARRAY(plexContext.inlineass_ctxs, plexContext.nb_inlineass_ctxs);
        m = &plexContext.inlineass_ctxs[plexContext.nb_inlineass_ctxs - 1];

        m->file_index   = file_idx;
        m->stream_index = i;
        break;
    }

finish:
    if (!m)
        av_log(NULL, AV_LOG_ERROR, "Subtitle stream map '%s' matches no streams.\n", arg);

    av_freep(&map);
#endif
    return 0;
}
Ejemplo n.º 3
0
static void init_input_filter(FilterGraph *fg, AVFilterInOut *in)
{
    InputStream *ist = NULL;
    enum AVMediaType type = avfilter_pad_get_type(in->filter_ctx->input_pads, in->pad_idx);
    int i;

    // TODO: support other filter types
    if (type != AVMEDIA_TYPE_VIDEO && type != AVMEDIA_TYPE_AUDIO) {
        av_log(NULL, AV_LOG_FATAL, "Only video and audio filters supported "
               "currently.\n");
        exit(1);
    }

    if (in->name) {
        AVFormatContext *s;
        AVStream       *st = NULL;
        char *p;
        int file_idx = strtol(in->name, &p, 0);

        if (file_idx < 0 || file_idx >= nb_input_files) {
            av_log(NULL, AV_LOG_FATAL, "Invalid file index %d in filtegraph description %s.\n",
                   file_idx, fg->graph_desc);
            exit(1);
        }
        s = input_files[file_idx]->ctx;

        for (i = 0; i < s->nb_streams; i++) {
            if (s->streams[i]->codec->codec_type != type)
                continue;
            if (check_stream_specifier(s, s->streams[i], *p == ':' ? p + 1 : p) == 1) {
                st = s->streams[i];
                break;
            }
        }
        if (!st) {
            av_log(NULL, AV_LOG_FATAL, "Stream specifier '%s' in filtergraph description %s "
                   "matches no streams.\n", p, fg->graph_desc);
            exit(1);
        }
        ist = input_streams[input_files[file_idx]->ist_index + st->index];
    } else {
        /* find the first unused stream of corresponding type */
        for (i = 0; i < nb_input_streams; i++) {
            ist = input_streams[i];
            if (ist->dec_ctx->codec_type == type && ist->discard)
                break;
        }
        if (i == nb_input_streams) {
            av_log(NULL, AV_LOG_FATAL, "Cannot find a matching stream for "
                   "unlabeled input pad %d on filter %s\n", in->pad_idx,
                   in->filter_ctx->name);
            exit(1);
        }
    }
    av_assert0(ist);

    ist->discard         = 0;
    ist->decoding_needed = 1;
    ist->st->discard = AVDISCARD_NONE;

    GROW_ARRAY(fg->inputs, fg->nb_inputs);
    if (!(fg->inputs[fg->nb_inputs - 1] = av_mallocz(sizeof(*fg->inputs[0]))))
        exit(1);
    fg->inputs[fg->nb_inputs - 1]->ist   = ist;
    fg->inputs[fg->nb_inputs - 1]->graph = fg;

    GROW_ARRAY(ist->filters, ist->nb_filters);
    ist->filters[ist->nb_filters - 1] = fg->inputs[fg->nb_inputs - 1];
}