* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/intreadwrite.h"
+#include "libavutil/tree.h"
+#include "libavcodec/mpegaudiodata.h"
#include "nut.h"
-#include "tree.h"
-#include "mpegaudiodata.h"
static int find_expected_header(AVCodecContext *c, int size, int key_frame, uint8_t out[64]){
int sample_rate= c->sample_rate;
header |= 1<<16; //no crc
AV_WB32(out, header);
if(size <= 0)
- return 2; //we guess theres no crc, if there is one the user clearly doesnt care about overhead
+ return 2; //we guess there is no crc, if there is one the user clearly does not care about overhead
if(bitrate_index == 30)
return -1; //something is wrong ...
header |= (bitrate_index&1)<<9;
return 2; //FIXME actually put the needed ones in build_elision_headers()
- return 3; //we guess that the private bit isnt set
-//FIXME the above asumtations should be checked, if these turn out false too often something should be done
+ return 3; //we guess that the private bit is not set
+//FIXME the above assumptions should be checked, if these turn out false too often something should be done
}
return 0;
}
put_byte(bc, val&127);
}
-static void put_t(NUTContext *nut, StreamContext *nus, ByteIOContext *bc, uint64_t val){
+static void put_tt(NUTContext *nut, StreamContext *nus, ByteIOContext *bc, uint64_t val){
val *= nut->time_base_count;
val += nus->time_base - nut->time_base;
put_v(bc, val);
}
}
-static int write_streamheader(NUTContext *nut, ByteIOContext *bc, AVCodecContext *codec, int i){
+static int write_streamheader(NUTContext *nut, ByteIOContext *bc, AVStream *st, int i){
+ AVCodecContext *codec = st->codec;
put_v(bc, i);
switch(codec->codec_type){
case CODEC_TYPE_VIDEO: put_v(bc, 0); break;
put_v(bc, codec->width);
put_v(bc, codec->height);
- if(codec->sample_aspect_ratio.num<=0 || codec->sample_aspect_ratio.den<=0){
+ if(st->sample_aspect_ratio.num<=0 || st->sample_aspect_ratio.den<=0){
put_v(bc, 0);
put_v(bc, 0);
}else{
- put_v(bc, codec->sample_aspect_ratio.num);
- put_v(bc, codec->sample_aspect_ratio.den);
+ put_v(bc, st->sample_aspect_ratio.num);
+ put_v(bc, st->sample_aspect_ratio.den);
}
put_v(bc, 0); /* csp type -- unknown */
break;
return 0;
}
+static int write_streaminfo(NUTContext *nut, ByteIOContext *bc, int stream_id){
+ AVFormatContext *s= nut->avf;
+ AVStream* st = s->streams[stream_id];
+ ByteIOContext *dyn_bc;
+ uint8_t *dyn_buf=NULL;
+ int count=0, dyn_size, i;
+ int ret = url_open_dyn_buf(&dyn_bc);
+ if(ret < 0)
+ return ret;
+
+ for (i=0; ff_nut_dispositions[i].flag; ++i) {
+ if (st->disposition & ff_nut_dispositions[i].flag)
+ count += add_info(dyn_bc, "Disposition", ff_nut_dispositions[i].str);
+ }
+ dyn_size = url_close_dyn_buf(dyn_bc, &dyn_buf);
+
+ if (count) {
+ put_v(bc, stream_id + 1); //stream_id_plus1
+ put_v(bc, 0); //chapter_id
+ put_v(bc, 0); //timestamp_start
+ put_v(bc, 0); //length
+
+ put_v(bc, count);
+
+ put_buffer(bc, dyn_buf, dyn_size);
+ }
+
+ av_free(dyn_buf);
+ return count;
+}
+
static int write_headers(NUTContext *nut, ByteIOContext *bc){
ByteIOContext *dyn_bc;
int i, ret;
put_packet(nut, bc, dyn_bc, 1, MAIN_STARTCODE);
for (i=0; i < nut->avf->nb_streams; i++){
- AVCodecContext *codec = nut->avf->streams[i]->codec;
-
ret = url_open_dyn_buf(&dyn_bc);
if(ret < 0)
return ret;
- write_streamheader(nut, dyn_bc, codec, i);
+ write_streamheader(nut, dyn_bc, nut->avf->streams[i], i);
put_packet(nut, bc, dyn_bc, 1, STREAM_STARTCODE);
}
write_globalinfo(nut, dyn_bc);
put_packet(nut, bc, dyn_bc, 1, INFO_STARTCODE);
+ for (i = 0; i < nut->avf->nb_streams; i++) {
+ ret = url_open_dyn_buf(&dyn_bc);
+ if(ret < 0)
+ return ret;
+ ret = write_streaminfo(nut, dyn_bc, i);
+ if (ret < 0)
+ return ret;
+ if (ret > 0)
+ put_packet(nut, bc, dyn_bc, 1, INFO_STARTCODE);
+ else {
+ uint8_t* buf;
+ url_close_dyn_buf(dyn_bc, &buf);
+ av_free(buf);
+ }
+ }
+
nut->last_syncpoint_pos= INT_MIN;
nut->header_count++;
return 0;
int store_sp=0;
int ret;
+ if(pkt->pts < 0)
+ return -1;
+
if(1LL<<(20+3*nut->header_count) <= url_ftell(bc))
write_headers(nut, bc);
//FIXME: Ensure store_sp is 1 in the first place.
if(store_sp){
- syncpoint_t *sp, dummy= {.pos= INT64_MAX};
+ Syncpoint *sp, dummy= {.pos= INT64_MAX};
ff_nut_reset_ts(nut, *nus->time_base, pkt->dts);
for(i=0; i<s->nb_streams; i++){
ret = url_open_dyn_buf(&dyn_bc);
if(ret < 0)
return ret;
- put_t(nut, nus, dyn_bc, pkt->dts);
+ put_tt(nut, nus, dyn_bc, pkt->dts);
put_v(dyn_bc, sp ? (nut->last_syncpoint_pos - sp->pos)>>4 : 0);
put_packet(nut, bc, dyn_bc, 1, SYNCPOINT_STARTCODE);
AVOutputFormat nut_muxer = {
"nut",
- "nut format",
+ NULL_IF_CONFIG_SMALL("NUT format"),
"video/x-nut",
"nut",
sizeof(NUTContext),
-#ifdef CONFIG_LIBVORBIS
+#if CONFIG_LIBVORBIS
CODEC_ID_VORBIS,
-#elif defined(CONFIG_LIBMP3LAME)
+#elif CONFIG_LIBMP3LAME
CODEC_ID_MP3,
#else
- CODEC_ID_MP2, /* AC3 needs liba52 decoder */
+ CODEC_ID_MP2,
#endif
CODEC_ID_MPEG4,
write_header,
write_packet,
write_trailer,
.flags = AVFMT_GLOBALHEADER,
- .codec_tag= (const AVCodecTag*[]){codec_bmp_tags, codec_wav_tags, ff_nut_subtitle_tags, 0},
+ .codec_tag= (const AVCodecTag* const []){codec_bmp_tags, codec_wav_tags, ff_nut_subtitle_tags, 0},
};
projects / ffmpeg / blobdiff