* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "tree.h"
+#include <strings.h>
+#include "libavutil/avstring.h"
+#include "libavutil/bswap.h"
+#include "libavutil/tree.h"
#include "nut.h"
-#include "avstring.h"
#undef NDEBUG
#include <assert.h>
+#if FF_API_MAX_STREAMS
+#define NUT_MAX_STREAMS MAX_STREAMS
+#else
+#define NUT_MAX_STREAMS 256 /* arbitrary sanity check value */
+#endif
+
static int get_str(ByteIOContext *bc, char *string, unsigned int maxlen){
unsigned int len= ff_get_v(bc);
int64_t size;
// start= url_ftell(bc) - 8;
- startcode= be2me_64(startcode);
- startcode= ff_crc04C11DB7_update(0, &startcode, 8);
+ startcode= av_be2ne64(startcode);
+ startcode= ff_crc04C11DB7_update(0, (uint8_t*)&startcode, 8);
init_checksum(bc, ff_crc04C11DB7_update, startcode);
size= ff_get_v(bc);
* Find the given startcode.
* @param code the startcode
* @param pos the start position of the search, or -1 if the current position
- * @returns the position of the startcode or -1 if not found
+ * @return the position of the startcode or -1 if not found
*/
static int64_t find_startcode(ByteIOContext *bc, uint64_t code, int64_t pos){
for(;;){
end += url_ftell(bc);
GET_V(tmp , tmp >=2 && tmp <= 3)
- GET_V(stream_count , tmp > 0 && tmp <=MAX_STREAMS)
+ GET_V(stream_count , tmp > 0 && tmp <= NUT_MAX_STREAMS)
nut->max_distance = ff_get_v(bc);
if(nut->max_distance > 65536){
for(i=0; i<nut->time_base_count; i++){
GET_V(nut->time_base[i].num, tmp>0 && tmp<(1ULL<<31))
GET_V(nut->time_base[i].den, tmp>0 && tmp<(1ULL<<31))
- if(ff_gcd(nut->time_base[i].num, nut->time_base[i].den) != 1){
+ if(av_gcd(nut->time_base[i].num, nut->time_base[i].den) != 1){
av_log(s, AV_LOG_ERROR, "time base invalid\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
}
tmp_pts=0;
if(count == 0 || i+count > 256){
av_log(s, AV_LOG_ERROR, "illegal count %d at %d\n", count, i);
- return -1;
+ return AVERROR_INVALIDDATA;
}
if(tmp_stream >= stream_count){
av_log(s, AV_LOG_ERROR, "illegal stream number\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
for(j=0; j<count; j++,i++){
rem -= nut->header_len[i];
if(rem < 0){
av_log(s, AV_LOG_ERROR, "invalid elision header\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
nut->header[i]= av_malloc(nut->header_len[i]);
get_buffer(bc, nut->header[i], nut->header_len[i]);
if(skip_reserved(bc, end) || get_checksum(bc)){
av_log(s, AV_LOG_ERROR, "main header checksum mismatch\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
nut->stream = av_mallocz(sizeof(StreamContext)*stream_count);
switch(class)
{
case 0:
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- st->codec->codec_id = codec_get_id(codec_bmp_tags, tmp);
+ st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codec->codec_id = av_codec_get_id(
+ (const AVCodecTag * const []) { ff_codec_bmp_tags, ff_nut_video_tags, 0 },
+ tmp);
break;
case 1:
- st->codec->codec_type = CODEC_TYPE_AUDIO;
- st->codec->codec_id = codec_get_id(codec_wav_tags, tmp);
+ st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
+ st->codec->codec_id = ff_codec_get_id(ff_codec_wav_tags, tmp);
break;
case 2:
- st->codec->codec_type = CODEC_TYPE_SUBTITLE;
- st->codec->codec_id = codec_get_id(ff_nut_subtitle_tags, tmp);
+ st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
+ st->codec->codec_id = ff_codec_get_id(ff_nut_subtitle_tags, tmp);
break;
case 3:
- st->codec->codec_type = CODEC_TYPE_DATA;
+ st->codec->codec_type = AVMEDIA_TYPE_DATA;
break;
default:
av_log(s, AV_LOG_ERROR, "unknown stream class (%d)\n", class);
return -1;
}
if(class<3 && st->codec->codec_id == CODEC_ID_NONE)
- av_log(s, AV_LOG_ERROR, "Unknown codec?!\n");
+ av_log(s, AV_LOG_ERROR, "Unknown codec tag '0x%04x' for stream number %d\n",
+ (unsigned int)tmp, stream_id);
GET_V(stc->time_base_id , tmp < nut->time_base_count);
GET_V(stc->msb_pts_shift , tmp < 16);
get_buffer(bc, st->codec->extradata, st->codec->extradata_size);
}
- if (st->codec->codec_type == CODEC_TYPE_VIDEO){
+ if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO){
GET_V(st->codec->width , tmp > 0)
GET_V(st->codec->height, tmp > 0)
- st->codec->sample_aspect_ratio.num= ff_get_v(bc);
- st->codec->sample_aspect_ratio.den= ff_get_v(bc);
- if((!st->codec->sample_aspect_ratio.num) != (!st->codec->sample_aspect_ratio.den)){
- av_log(s, AV_LOG_ERROR, "invalid aspect ratio %d/%d\n", st->codec->sample_aspect_ratio.num, st->codec->sample_aspect_ratio.den);
+ st->sample_aspect_ratio.num= ff_get_v(bc);
+ st->sample_aspect_ratio.den= ff_get_v(bc);
+ if((!st->sample_aspect_ratio.num) != (!st->sample_aspect_ratio.den)){
+ av_log(s, AV_LOG_ERROR, "invalid aspect ratio %d/%d\n", st->sample_aspect_ratio.num, st->sample_aspect_ratio.den);
return -1;
}
ff_get_v(bc); /* csp type */
- }else if (st->codec->codec_type == CODEC_TYPE_AUDIO){
+ }else if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO){
GET_V(st->codec->sample_rate , tmp > 0)
ff_get_v(bc); // samplerate_den
GET_V(st->codec->channels, tmp > 0)
static int decode_info_header(NUTContext *nut){
AVFormatContext *s= nut->avf;
ByteIOContext *bc = s->pb;
- uint64_t tmp;
- unsigned int stream_id_plus1, chapter_start, chapter_len, count;
+ uint64_t tmp, chapter_start, chapter_len;
+ unsigned int stream_id_plus1, count;
int chapter_id, i;
int64_t value, end;
char name[256], str_value[1024], type_str[256];
const char *type;
+ AVChapter *chapter= NULL;
+ AVStream *st= NULL;
+ AVMetadata **metadata = NULL;
end= get_packetheader(nut, bc, 1, INFO_STARTCODE);
end += url_ftell(bc);
chapter_start= ff_get_v(bc);
chapter_len = ff_get_v(bc);
count = ff_get_v(bc);
+
+ if(chapter_id && !stream_id_plus1){
+ int64_t start= chapter_start / nut->time_base_count;
+ chapter= ff_new_chapter(s, chapter_id,
+ nut->time_base[chapter_start % nut->time_base_count],
+ start, start + chapter_len, NULL);
+ metadata = &chapter->metadata;
+ } else if(stream_id_plus1) {
+ st= s->streams[stream_id_plus1 - 1];
+ metadata = &st->metadata;
+ } else
+ metadata = &s->metadata;
+
for(i=0; i<count; i++){
get_str(bc, name, sizeof(name));
value= get_s(bc);
continue;
}
- if(chapter_id==0 && !strcmp(type, "UTF-8")){
- if (!strcmp(name, "Author"))
- av_strlcpy(s->author , str_value, sizeof(s->author));
- else if(!strcmp(name, "Title"))
- av_strlcpy(s->title , str_value, sizeof(s->title));
- else if(!strcmp(name, "Copyright"))
- av_strlcpy(s->copyright, str_value, sizeof(s->copyright));
- else if(!strcmp(name, "Description"))
- av_strlcpy(s->comment , str_value, sizeof(s->comment));
- else if(!strcmp(name, "Disposition"))
+ if(!strcmp(type, "UTF-8")){
+ if(chapter_id==0 && !strcmp(name, "Disposition")) {
set_disposition_bits(s, str_value, stream_id_plus1 - 1);
+ continue;
+ }
+ if(metadata && strcasecmp(name,"Uses")
+ && strcasecmp(name,"Depends") && strcasecmp(name,"Replaces"))
+ av_metadata_set2(metadata, name, str_value, 0);
}
}
int64_t filesize= url_fsize(bc);
int64_t *syncpoints;
int8_t *has_keyframe;
+ int ret= -1;
url_fseek(bc, filesize-12, SEEK_SET);
url_fseek(bc, filesize-get_be64(bc), SEEK_SET);
syncpoints= av_malloc(sizeof(int64_t)*syncpoint_count);
has_keyframe= av_malloc(sizeof(int8_t)*(syncpoint_count+1));
for(i=0; i<syncpoint_count; i++){
- GET_V(syncpoints[i], tmp>0)
+ syncpoints[i] = ff_get_v(bc);
+ if(syncpoints[i] <= 0)
+ goto fail;
if(i)
syncpoints[i] += syncpoints[i-1];
}
x>>=1;
if(n+x >= syncpoint_count + 1){
av_log(s, AV_LOG_ERROR, "index overflow A\n");
- return -1;
+ goto fail;
}
while(x--)
has_keyframe[n++]= flag;
while(x != 1){
if(n>=syncpoint_count + 1){
av_log(s, AV_LOG_ERROR, "index overflow B\n");
- return -1;
+ goto fail;
}
has_keyframe[n++]= x&1;
x>>=1;
}
if(has_keyframe[0]){
av_log(s, AV_LOG_ERROR, "keyframe before first syncpoint in index\n");
- return -1;
+ goto fail;
}
assert(n<=syncpoint_count+1);
for(; j<n && j<syncpoint_count; j++){
if(skip_reserved(bc, end) || get_checksum(bc)){
av_log(s, AV_LOG_ERROR, "index checksum mismatch\n");
- return -1;
+ goto fail;
}
- return 0;
+ ret= 0;
+fail:
+ av_free(syncpoints);
+ av_free(has_keyframe);
+ return ret;
}
static int nut_read_header(AVFormatContext *s, AVFormatParameters *ap)
pos= find_startcode(bc, MAIN_STARTCODE, pos)+1;
if (pos<0+1){
av_log(s, AV_LOG_ERROR, "No main startcode found.\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
}while(decode_main_header(nut) < 0);
pos= find_startcode(bc, STREAM_STARTCODE, pos)+1;
if (pos<0+1){
av_log(s, AV_LOG_ERROR, "Not all stream headers found.\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
if(decode_stream_header(nut) >= 0)
initialized_stream_count++;
if(startcode==0){
av_log(s, AV_LOG_ERROR, "EOF before video frames\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}else if(startcode == SYNCPOINT_STARTCODE){
nut->next_startcode= startcode;
break;
}
assert(nut->next_startcode == SYNCPOINT_STARTCODE);
+ ff_metadata_conv_ctx(s, NULL, ff_nut_metadata_conv);
+
return 0;
}
if(url_ftell(bc) > nut->last_syncpoint_pos + nut->max_distance){
av_log(s, AV_LOG_ERROR, "Last frame must have been damaged %"PRId64" > %"PRId64" + %d\n", url_ftell(bc), nut->last_syncpoint_pos, nut->max_distance);
- return -1;
+ return AVERROR_INVALIDDATA;
}
flags = nut->frame_code[frame_code].flags;
*header_idx = nut->frame_code[frame_code].header_idx;
if(flags & FLAG_INVALID)
- return -1;
+ return AVERROR_INVALIDDATA;
if(flags & FLAG_CODED)
flags ^= ff_get_v(bc);
if(flags & FLAG_STREAM_ID){
if(*header_idx >= (unsigned)nut->header_count){
av_log(s, AV_LOG_ERROR, "header_idx invalid\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
if(size > 4096)
*header_idx=0;
get_be32(bc); //FIXME check this
}else if(size > 2*nut->max_distance || FFABS(stc->last_pts - *pts) > stc->max_pts_distance){
av_log(s, AV_LOG_ERROR, "frame size > 2max_distance and no checksum\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
stc->last_pts= *pts;
size= decode_frame_header(nut, &pts, &stream_id, &header_idx, frame_code);
if(size < 0)
- return -1;
+ return size;
stc= &nut->stream[stream_id];
pkt->stream_index = stream_id;
if (stc->last_flags & FLAG_KEY)
- pkt->flags |= PKT_FLAG_KEY;
+ pkt->flags |= AV_PKT_FLAG_KEY;
pkt->pts = pts;
return 0;
av_log(s, AV_LOG_DEBUG, "syncing from %"PRId64"\n", pos);
tmp= find_any_startcode(bc, nut->last_syncpoint_pos+1);
if(tmp==0)
- return -1;
+ return AVERROR_INVALIDDATA;
av_log(s, AV_LOG_DEBUG, "sync\n");
nut->next_startcode= tmp;
}
static int read_seek(AVFormatContext *s, int stream_index, int64_t pts, int flags){
NUTContext *nut = s->priv_data;
AVStream *st= s->streams[stream_index];
- syncpoint_t dummy={.ts= pts*av_q2d(st->time_base)*AV_TIME_BASE};
- syncpoint_t nopts_sp= {.ts= AV_NOPTS_VALUE, .back_ptr= AV_NOPTS_VALUE};
- syncpoint_t *sp, *next_node[2]= {&nopts_sp, &nopts_sp};
+ Syncpoint dummy={.ts= pts*av_q2d(st->time_base)*AV_TIME_BASE};
+ Syncpoint nopts_sp= {.ts= AV_NOPTS_VALUE, .back_ptr= AV_NOPTS_VALUE};
+ Syncpoint *sp, *next_node[2]= {&nopts_sp, &nopts_sp};
int64_t pos, pos2, ts;
int i;
pos2= st->index_entries[index].pos;
ts = st->index_entries[index].timestamp;
}else{
- av_tree_find(nut->syncpoints, &dummy, ff_nut_sp_pts_cmp, next_node);
+ av_tree_find(nut->syncpoints, &dummy, (void *) ff_nut_sp_pts_cmp,
+ (void **) next_node);
av_log(s, AV_LOG_DEBUG, "%"PRIu64"-%"PRIu64" %"PRId64"-%"PRId64"\n", next_node[0]->pos, next_node[1]->pos,
next_node[0]->ts , next_node[1]->ts);
pos= av_gen_search(s, -1, dummy.ts, next_node[0]->pos, next_node[1]->pos, next_node[1]->pos,
if(!(flags & AVSEEK_FLAG_BACKWARD)){
dummy.pos= pos+16;
next_node[1]= &nopts_sp;
- av_tree_find(nut->syncpoints, &dummy, ff_nut_sp_pos_cmp, next_node);
+ av_tree_find(nut->syncpoints, &dummy, (void *) ff_nut_sp_pos_cmp,
+ (void **) next_node);
pos2= av_gen_search(s, -2, dummy.pos, next_node[0]->pos , next_node[1]->pos, next_node[1]->pos,
next_node[0]->back_ptr, next_node[1]->back_ptr, flags, &ts, nut_read_timestamp);
if(pos2>=0)
//FIXME dir but I think it does not matter
}
dummy.pos= pos;
- sp= av_tree_find(nut->syncpoints, &dummy, ff_nut_sp_pos_cmp, NULL);
+ sp= av_tree_find(nut->syncpoints, &dummy, (void *) ff_nut_sp_pos_cmp,
+ NULL);
assert(sp);
pos2= sp->back_ptr - 15;
static int nut_read_close(AVFormatContext *s)
{
NUTContext *nut = s->priv_data;
+ int i;
av_freep(&nut->time_base);
av_freep(&nut->stream);
+ ff_nut_free_sp(nut);
+ for(i = 1; i < nut->header_count; i++)
+ av_freep(&nut->header[i]);
return 0;
}
-#ifdef CONFIG_NUT_DEMUXER
+#if CONFIG_NUT_DEMUXER
AVInputFormat nut_demuxer = {
"nut",
- "nut format",
+ NULL_IF_CONFIG_SMALL("NUT format"),
sizeof(NUTContext),
nut_probe,
nut_read_header,
nut_read_close,
read_seek,
.extensions = "nut",
+ .codec_tag = (const AVCodecTag * const []) { ff_codec_bmp_tags, ff_nut_video_tags, ff_codec_wav_tags, ff_nut_subtitle_tags, 0 },
};
#endif