int show_codecs(void *optctx, const char *opt, const char *arg)
{
const AVCodecDescriptor **codecs;
unsigned i, nb_codecs = get_codecs_sorted(&codecs);
char tmp[1024];
th_writelog("Codecs:\n"
" D..... = Decoding supported\n"
" .E.... = Encoding supported\n"
" ..V... = Video codec\n"
" ..A... = Audio codec\n"
" ..S... = Subtitle codec\n"
" ...I.. = Intra frame-only codec\n"
" ....L. = Lossy compression\n"
" .....S = Lossless compression\n"
" -------\n");
for (i = 0; i < nb_codecs; ++i) {
const AVCodecDescriptor *desc = codecs[i];
const AVCodec *codec = NULL;
_log(" ");
_log(avcodec_find_decoder(desc->id) ? "D" : ".");
_log(avcodec_find_encoder(desc->id) ? "E" : ".");
_log(get_media_type_char(desc->type));
_log((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
_log((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
_log((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
sprintf(tmp, " %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
_log(tmp);
/* print decoders/encoders when there's more than one or their
* names are different from codec name */
while ((codec = next_codec_for_id(desc->id, codec, 0))) {
if (strcmp(codec->name, desc->name)) {
print_codecs_for_id(desc->id, 0);
break;
}
}
codec = NULL;
while ((codec = next_codec_for_id(desc->id, codec, 1))) {
if (strcmp(codec->name, desc->name)) {
print_codecs_for_id(desc->id, 1);
break;
}
}
_log("\n");
}
av_free(codecs);
av_log(0, 0, "%s", text.c_str());
return 0;
}
static void get_codecs_for_id(const struct ff_format_desc *format_desc,
struct ff_codec_desc **first, struct ff_codec_desc **current,
enum AVCodecID id)
{
const AVCodec *codec = NULL;
while ((codec = next_codec_for_id(id, codec)))
add_codec_to_list(format_desc, first, current, codec->id,
codec);
}
static void print_codecs_for_id(enum AVCodecID id, int encoder)
{
const AVCodec *codec = NULL;
_log(encoder ? "encoders" : "decoders");
while ((codec = next_codec_for_id(id, codec, encoder)))
_log(codec->name);
_log(")");
}
