*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
-unsigned int get_be24(ByteIOContext *s)
-{
- unsigned int val;
- val = get_byte(s) << 16;
- val |= get_byte(s) << 8;
- val |= get_byte(s);
- return val;
-}
-
static int flv_probe(AVProbeData *p)
{
const uint8_t *d;
static int flv_read_header(AVFormatContext *s,
AVFormatParameters *ap)
{
- int offset, flags;
- AVStream *st;
+ int offset, flags, size;
- av_set_pts_info(s, 24, 1, 1000); /* 24 bit pts in ms */
+ s->ctx_flags |= AVFMTCTX_NOHEADER; //ok we have a header but theres no fps, codec type, sample_rate, ...
url_fskip(&s->pb, 4);
flags = get_byte(&s->pb);
- if ((flags & 1)) {
- st = av_new_stream(s, 0);
- if (!st)
- return AVERROR_NOMEM;
- st->codec.codec_type = CODEC_TYPE_VIDEO;
- st->codec.codec_id = CODEC_ID_FLV1;
- }
+ offset = get_be32(&s->pb);
- if ((flags & 4)) {
- st = av_new_stream(s, 1);
- if (!st)
- return AVERROR_NOMEM;
- st->codec.codec_type = CODEC_TYPE_AUDIO;
- st->codec.codec_id = CODEC_ID_MP3LAME;
+ if(!url_is_streamed(&s->pb)){
+ const int fsize= url_fsize(&s->pb);
+ url_fseek(&s->pb, fsize-4, SEEK_SET);
+ size= get_be32(&s->pb);
+ url_fseek(&s->pb, fsize-3-size, SEEK_SET);
+ if(size == get_be24(&s->pb) + 11){
+ s->duration= get_be24(&s->pb) * (int64_t)AV_TIME_BASE / 1000;
+ }
}
- offset = get_be32(&s->pb);
url_fseek(&s->pb, offset, SEEK_SET);
return 0;
static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
{
- int ret, i, type, size, pts, flags;
- AVStream *st;
-
- redo:
+ int ret, i, type, size, pts, flags, is_audio, next;
+ AVStream *st = NULL;
+
+ for(;;){
url_fskip(&s->pb, 4); /* size of previous packet */
type = get_byte(&s->pb);
size = get_be24(&s->pb);
pts = get_be24(&s->pb);
+// av_log(s, AV_LOG_DEBUG, "type:%d, size:%d, pts:%d\n", type, size, pts);
if (url_feof(&s->pb))
- return -EIO;
+ return AVERROR_IO;
url_fskip(&s->pb, 4); /* reserved */
flags = 0;
+
+ if(size == 0)
+ continue;
+
+ next= size + url_ftell(&s->pb);
+
if (type == 8) {
+ is_audio=1;
flags = get_byte(&s->pb);
- size--;
- if ((flags >> 4) != 2) { /* 0: uncompressed 1: ADPCM 2: mp3 5: Nellymoser 8kHz mono 6: Nellymoser*/
- goto skip;
- }
} else if (type == 9) {
+ is_audio=0;
flags = get_byte(&s->pb);
- size--;
- if ((flags & 0xF) != 2) { /* 2: only format */
- goto skip;
+ } else if (type == 18 && size > 13+1+4) {
+ url_fskip(&s->pb, 13); //onMetaData blah
+ if(get_byte(&s->pb) == 8){
+ url_fskip(&s->pb, 4);
}
+ while(url_ftell(&s->pb) + 5 < next){
+ char tmp[128];
+ int type, len;
+ double d= 0;
+
+ len= get_be16(&s->pb);
+ if(len >= sizeof(tmp) || !len)
+ break;
+ get_buffer(&s->pb, tmp, len);
+ tmp[len]=0;
+
+ type= get_byte(&s->pb);
+ if(type==0){
+ d= av_int2dbl(get_be64(&s->pb));
+ }else if(type==2){
+ len= get_be16(&s->pb);
+ if(len >= sizeof(tmp))
+ break;
+ url_fskip(&s->pb, len);
+ }else if(type==8){
+ //array
+ break;
+ }else if(type==11){
+ d= av_int2dbl(get_be64(&s->pb));
+ get_be16(&s->pb);
+ }
+
+ if(!strcmp(tmp, "duration")){
+ s->duration = d*AV_TIME_BASE;
+ }else if(!strcmp(tmp, "videodatarate")){
+ }else if(!strcmp(tmp, "audiodatarate")){
+ }
+ }
+ url_fseek(&s->pb, next, SEEK_SET);
+ continue;
} else {
- skip:
/* skip packet */
- printf("skipping flv packet: type %d, size %d, flags %d\n", type, size, flags);
- url_fskip(&s->pb, size);
- goto redo;
+ av_log(s, AV_LOG_ERROR, "skipping flv packet: type %d, size %d, flags %d\n", type, size, flags);
+ url_fseek(&s->pb, next, SEEK_SET);
+ continue;
}
/* now find stream */
for(i=0;i<s->nb_streams;i++) {
st = s->streams[i];
- if (st->id == ((type == 9) ? 0 : 1))
- goto found;
+ if (st->id == is_audio)
+ break;
}
- goto skip;
- found:
+ if(i == s->nb_streams){
+ st = av_new_stream(s, is_audio);
+ if (!st)
+ return AVERROR_NOMEM;
- if (av_new_packet(pkt, size) < 0)
- return -EIO;
+ av_set_pts_info(st, 24, 1, 1000); /* 24 bit pts in ms */
+ st->codec->time_base= (AVRational){1,1000};
+ }
+// av_log(NULL, AV_LOG_DEBUG, "%d %X %d \n", is_audio, flags, st->discard);
+ if( (st->discard >= AVDISCARD_NONKEY && !((flags >> 4)==1 || is_audio))
+ ||(st->discard >= AVDISCARD_BIDIR && ((flags >> 4)==3 && !is_audio))
+ || st->discard >= AVDISCARD_ALL
+ ){
+ url_fseek(&s->pb, next, SEEK_SET);
+ continue;
+ }
+ break;
+ }
+
+ if(is_audio){
+ if(st->codec->sample_rate == 0){
+ st->codec->codec_type = CODEC_TYPE_AUDIO;
+ st->codec->channels = (flags&1)+1;
+ if((flags >> 4) == 5)
+ st->codec->sample_rate= 8000;
+ else
+ st->codec->sample_rate = (44100<<((flags>>2)&3))>>3;
+ switch(flags >> 4){/* 0: uncompressed 1: ADPCM 2: mp3 5: Nellymoser 8kHz mono 6: Nellymoser*/
+ case 0: if (flags&2) st->codec->codec_id = CODEC_ID_PCM_S16BE;
+ else st->codec->codec_id = CODEC_ID_PCM_S8; break;
+ case 1: st->codec->codec_id = CODEC_ID_ADPCM_SWF; break;
+ case 2: st->codec->codec_id = CODEC_ID_MP3; break;
+ // this is not listed at FLV but at SWF, strange...
+ case 3: if (flags&2) st->codec->codec_id = CODEC_ID_PCM_S16LE;
+ else st->codec->codec_id = CODEC_ID_PCM_S8; break;
+ default:
+ av_log(s, AV_LOG_INFO, "Unsupported audio codec (%x)\n", flags >> 4);
+ st->codec->codec_tag= (flags >> 4);
+ }
+ st->codec->bits_per_sample = (flags & 2) ? 16 : 8;
+ }
+ }else{
+ st->codec->codec_type = CODEC_TYPE_VIDEO;
+ switch(flags & 0xF){
+ case 2: st->codec->codec_id = CODEC_ID_FLV1; break;
+ case 3: st->codec->codec_id = CODEC_ID_FLASHSV; break;
+ default:
+ av_log(s, AV_LOG_INFO, "Unsupported video codec (%x)\n", flags & 0xf);
+ st->codec->codec_tag= flags & 0xF;
+ }
+ }
- ret = get_buffer(&s->pb, pkt->data, size);
+ ret= av_get_packet(&s->pb, pkt, size - 1);
if (ret <= 0) {
- av_free_packet(pkt);
- return -EIO;
+ return AVERROR_IO;
}
/* note: we need to modify the packet size here to handle the last
packet */
pkt->size = ret;
pkt->pts = pts;
pkt->stream_index = st->index;
+
+ if (is_audio || ((flags >> 4)==1))
+ pkt->flags |= PKT_FLAG_KEY;
+
return ret;
}
return 0;
}
-AVInputFormat flv_iformat = {
+AVInputFormat flv_demuxer = {
"flv",
"flv format",
0,
int flvdec_init(void)
{
- av_register_input_format(&flv_iformat);
+ av_register_input_format(&flv_demuxer);
return 0;
}
projects / ffmpeg / blobdiff