uint8_t lavformat_init(void)
{
av_register_all();
// Make sure avformat is correctly configured
const char* formats[] = {"mpegts", "dvd", "vcd", "svcd", "mp4", "psp", "flv", "matroska"};
AVOutputFormat *avfmt;
for (int i = 0; i < 8; i++)
{
avfmt = av_guess_format(formats[i], NULL, NULL);
if (avfmt == NULL)
{
printf("Error: %s muxer isn't registered\n", formats[i]);
ADM_assert(0);
}
}
URLProtocol *up = av_protocol_next(NULL);
if (strcmp(up->name, "file") != 0)
{
printf("Error: file protocol isn't registered\n");
ADM_assert(0);
}
}
void show_protocols(void)
{
URLProtocol *up=NULL;
printf("Supported file protocols:\n");
while((up = av_protocol_next(up)))
printf("%s\n", up->name);
}
void ReplaceFFMPEGFileProtocol()
{
URLProtocol * protocol = av_protocol_next(NULL);
while (protocol && std::string(protocol->name) != "file")
protocol = av_protocol_next(protocol);
if (protocol)
{
protocol->url_open = &wfile_open;
protocol->url_read = &wfile_read;
protocol->url_seek = &wfile_seek;
protocol->url_write = &wfile_write;
protocol->url_get_file_handle = &wfile_get_handle;
protocol->url_close = &wfile_close;
}
};
static inline bool
input_ffmpeg_supported(void)
{
#if LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT(53,0,0)
void *opaque = NULL;
return avio_enum_protocols(&opaque, 0) != NULL;
#else
return av_protocol_next(NULL) != NULL;
#endif
}
void show_protocols(void)
{
URLProtocol *up=NULL;
printf("Supported file protocols:\n");
while((up = av_protocol_next(up)))
printf("%s\n", up->name);
printf("\n");
printf("Frame size, frame rate abbreviations:\n ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif\n");
}
// Hijack lavf's file protocol handler's open function and use our own instead.
// Hack by nielsm.
void ffms_patch_lavf_file_open() {
URLProtocol *proto = av_protocol_next(NULL);
while (proto != NULL) {
if (strcmp("file", proto->name) == 0) {
break;
}
proto = proto->next;
}
if (proto != NULL) {
proto->url_open = &ffms_lavf_file_open;
}
}
void show_protocols(void)
{
URLProtocol *up=NULL;
printf("Supported file protocols:\n"
"I.. = Input supported\n"
".O. = Output supported\n"
"..S = Seek supported\n"
"FLAGS NAME\n"
"----- \n");
while((up = av_protocol_next(up)))
printf("%c%c%c %s\n",
up->url_read ? 'I' : '.',
up->url_write ? 'O' : '.',
up->url_seek ? 'S' : '.',
up->name);
}
int opt_protocols(const char *opt, const char *arg)
{
URLProtocol *up=NULL;
printf("Supported file protocols:\n"
"I.. = Input supported\n"
".O. = Output supported\n"
"..S = Seek supported\n"
"FLAGS NAME\n"
"----- \n");
while((up = av_protocol_next(up)))
printf("%c%c%c %s\n",
up->url_read ? 'I' : '.',
up->url_write ? 'O' : '.',
up->url_seek ? 'S' : '.',
up->name);
return 0;
}
void show_formats(void)
{
AVInputFormat *ifmt=NULL;
AVOutputFormat *ofmt=NULL;
URLProtocol *up=NULL;
AVCodec *p=NULL, *p2;
AVBitStreamFilter *bsf=NULL;
const char *last_name;
printf(
"File formats:\n"
" D. = Demuxing supported\n"
" .E = Muxing supported\n"
" --\n");
last_name= "000";
for(;;){
int decode=0;
int encode=0;
const char *name=NULL;
const char *long_name=NULL;
while((ofmt= av_oformat_next(ofmt))) {
if((name == NULL || strcmp(ofmt->name, name)<0) &&
strcmp(ofmt->name, last_name)>0){
name= ofmt->name;
long_name= ofmt->long_name;
encode=1;
}
}
while((ifmt= av_iformat_next(ifmt))) {
if((name == NULL || strcmp(ifmt->name, name)<0) &&
strcmp(ifmt->name, last_name)>0){
name= ifmt->name;
long_name= ifmt->long_name;
encode=0;
}
if(name && strcmp(ifmt->name, name)==0)
decode=1;
}
if(name==NULL)
break;
last_name= name;
printf(
" %s%s %-15s %s\n",
decode ? "D":" ",
encode ? "E":" ",
name,
long_name ? long_name:" ");
}
printf("\n");
printf(
"Codecs:\n"
" D..... = Decoding supported\n"
" .E.... = Encoding supported\n"
" ..V... = Video codec\n"
" ..A... = Audio codec\n"
" ..S... = Subtitle codec\n"
" ...S.. = Supports draw_horiz_band\n"
" ....D. = Supports direct rendering method 1\n"
" .....T = Supports weird frame truncation\n"
" ------\n");
last_name= "000";
for(;;){
int decode=0;
int encode=0;
int cap=0;
const char *type_str;
p2=NULL;
while((p= av_codec_next(p))) {
if((p2==NULL || strcmp(p->name, p2->name)<0) &&
strcmp(p->name, last_name)>0){
p2= p;
decode= encode= cap=0;
}
if(p2 && strcmp(p->name, p2->name)==0){
if(p->decode) decode=1;
if(p->encode) encode=1;
cap |= p->capabilities;
}
}
if(p2==NULL)
break;
last_name= p2->name;
switch(p2->type) {
case CODEC_TYPE_VIDEO:
type_str = "V";
break;
case CODEC_TYPE_AUDIO:
type_str = "A";
break;
case CODEC_TYPE_SUBTITLE:
type_str = "S";
break;
default:
type_str = "?";
break;
}
printf(
" %s%s%s%s%s%s %-15s %s",
decode ? "D": (/*p2->decoder ? "d":*/" "),
encode ? "E":" ",
type_str,
cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S":" ",
cap & CODEC_CAP_DR1 ? "D":" ",
cap & CODEC_CAP_TRUNCATED ? "T":" ",
p2->name,
p2->long_name ? p2->long_name : "");
/* if(p2->decoder && decode==0)
printf(" use %s for decoding", p2->decoder->name);*/
printf("\n");
}
printf("\n");
printf("Bitstream filters:\n");
while((bsf = av_bitstream_filter_next(bsf)))
printf(" %s", bsf->name);
printf("\n");
printf("Supported file protocols:\n");
while((up = av_protocol_next(up)))
printf(" %s:", up->name);
printf("\n");
printf("Frame size, frame rate abbreviations:\n ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif\n");
printf("\n");
printf(
"Note, the names of encoders and decoders do not always match, so there are\n"
"several cases where the above table shows encoder only or decoder only entries\n"
"even though both encoding and decoding are supported. For example, the h263\n"
"decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
"worse.\n");
}
