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;
}
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;
}
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];
}