* NSV demuxer
* Copyright (c) 2004 The Libav Project
*
+ * first version by Francois Revol <revol@free.fr>
+ *
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/attributes.h"
#include "libavutil/mathematics.h"
#include "avformat.h"
#include "internal.h"
-#include "riff.h"
#include "libavutil/dict.h"
-//#define DEBUG_DUMP_INDEX // XXX dumbdriving-271.nsv breaks with it commented!!
-#define CHECK_SUBSEQUENT_NSVS
-//#define DISABLE_AUDIO
-
/* max bytes to crawl for trying to resync
* stupid streaming servers don't start at chunk boundaries...
*/
#define NSV_MAX_RESYNC_TRIES 300
/*
- * First version by Francois Revol - revol@free.fr
* References:
* (1) http://www.multimedia.cx/nsv-format.txt
* seems someone came to the same conclusions as me, and updated it:
* (that is the offset of the data table after the header).
* After checking all samples from (S1) all confirms this.
*
- * Then, about NSVf[12-15], faster.nsf has 179700. When veiwing it in VLC,
+ * Then, about NSVf[12-15], faster.nsf has 179700. When viewing it in VLC,
* I noticed there was about 1 NVSs chunk/s, so I ran
* strings faster.nsv | grep NSVs | wc -l
* which gave me 180. That leads me to think that NSVf[12-15] might be the
* file length in milliseconds.
* Let's try that:
* for f in *.nsv; do HTIME="$(od -t x4 "$f" | head -1 | sed 's/.* //')"; echo "'$f' $((0x$HTIME))s = $((0x$HTIME/1000/60)):$((0x$HTIME/1000%60))"; done
- * except for nstrailer (which doesn't have an NSVf header), it repports correct time.
+ * except for nsvtrailer (which doesn't have an NSVf header), it reports correct time.
*
* nsvtrailer.nsv (S1) does not have any NSVf header, only NSVs chunks,
* so the header seems to not be mandatory. (for streaming).
int cum_len; /* temporary storage (used during seek) */
} NSVStream;
-typedef struct {
+typedef struct NSVContext {
int base_offset;
int NSVf_end;
uint32_t *nsvs_file_offset;
int16_t avsync;
AVRational framerate;
uint32_t *nsvs_timestamps;
- //DVDemuxContext* dv_demux;
} NSVContext;
static const AVCodecTag nsv_codec_video_tags[] = {
- { CODEC_ID_VP3, MKTAG('V', 'P', '3', ' ') },
- { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
- { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
- { CODEC_ID_VP5, MKTAG('V', 'P', '5', ' ') },
- { CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
- { CODEC_ID_VP6, MKTAG('V', 'P', '6', ' ') },
- { CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
- { CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
- { CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') },
+ { AV_CODEC_ID_VP3, MKTAG('V', 'P', '3', ' ') },
+ { AV_CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
+ { AV_CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
+ { AV_CODEC_ID_VP5, MKTAG('V', 'P', '5', ' ') },
+ { AV_CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
+ { AV_CODEC_ID_VP6, MKTAG('V', 'P', '6', ' ') },
+ { AV_CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
+ { AV_CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
+ { AV_CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') },
/*
- { CODEC_ID_VP4, MKTAG('V', 'P', '4', ' ') },
- { CODEC_ID_VP4, MKTAG('V', 'P', '4', '0') },
+ { AV_CODEC_ID_VP4, MKTAG('V', 'P', '4', ' ') },
+ { AV_CODEC_ID_VP4, MKTAG('V', 'P', '4', '0') },
*/
- { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') }, /* cf sample xvid decoder from nsv_codec_sdk.zip */
- { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', '3') },
- { CODEC_ID_NONE, 0 },
+ { AV_CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') }, /* cf sample xvid decoder from nsv_codec_sdk.zip */
+ { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', '3') },
+ { AV_CODEC_ID_NONE, 0 },
};
static const AVCodecTag nsv_codec_audio_tags[] = {
- { CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
- { CODEC_ID_AAC, MKTAG('A', 'A', 'C', ' ') },
- { CODEC_ID_AAC, MKTAG('A', 'A', 'C', 'P') },
- { CODEC_ID_SPEEX, MKTAG('S', 'P', 'X', ' ') },
- { CODEC_ID_PCM_U16LE, MKTAG('P', 'C', 'M', ' ') },
- { CODEC_ID_NONE, 0 },
+ { AV_CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
+ { AV_CODEC_ID_AAC, MKTAG('A', 'A', 'C', ' ') },
+ { AV_CODEC_ID_AAC, MKTAG('A', 'A', 'C', 'P') },
+ { AV_CODEC_ID_SPEEX, MKTAG('S', 'P', 'X', ' ') },
+ { AV_CODEC_ID_PCM_U16LE, MKTAG('P', 'C', 'M', ' ') },
+ { AV_CODEC_ID_NONE, 0 },
};
//static int nsv_load_index(AVFormatContext *s);
static int nsv_read_chunk(AVFormatContext *s, int fill_header);
-#define print_tag(str, tag, size) \
- av_dlog(NULL, "%s: tag=%c%c%c%c\n", \
- str, tag & 0xff, \
- (tag >> 8) & 0xff, \
- (tag >> 16) & 0xff, \
- (tag >> 24) & 0xff);
-
/* try to find something we recognize, and set the state accordingly */
static int nsv_resync(AVFormatContext *s)
{
uint32_t v = 0;
int i;
- av_dlog(s, "%s(), offset = %"PRId64", state = %d\n", __FUNCTION__, avio_tell(pb), nsv->state);
-
- //nsv->state = NSV_UNSYNC;
-
for (i = 0; i < NSV_MAX_RESYNC; i++) {
if (pb->eof_reached) {
- av_dlog(s, "NSV EOF\n");
+ av_log(s, AV_LOG_TRACE, "NSV EOF\n");
nsv->state = NSV_UNSYNC;
return -1;
}
v <<= 8;
v |= avio_r8(pb);
if (i < 8) {
- av_dlog(s, "NSV resync: [%d] = %02x\n", i, v & 0x0FF);
+ av_log(s, AV_LOG_TRACE, "NSV resync: [%d] = %02"PRIx32"\n", i, v & 0x0FF);
}
if ((v & 0x0000ffff) == 0xefbe) { /* BEEF */
- av_dlog(s, "NSV resynced on BEEF after %d bytes\n", i+1);
+ av_log(s, AV_LOG_TRACE, "NSV resynced on BEEF after %d bytes\n", i+1);
nsv->state = NSV_FOUND_BEEF;
return 0;
}
- /* we read as big endian, thus the MK*BE* */
+ /* we read as big-endian, thus the MK*BE* */
if (v == TB_NSVF) { /* NSVf */
- av_dlog(s, "NSV resynced on NSVf after %d bytes\n", i+1);
+ av_log(s, AV_LOG_TRACE, "NSV resynced on NSVf after %d bytes\n", i+1);
nsv->state = NSV_FOUND_NSVF;
return 0;
}
if (v == MKBETAG('N', 'S', 'V', 's')) { /* NSVs */
- av_dlog(s, "NSV resynced on NSVs after %d bytes\n", i+1);
+ av_log(s, AV_LOG_TRACE, "NSV resynced on NSVs after %d bytes\n", i+1);
nsv->state = NSV_FOUND_NSVS;
return 0;
}
}
- av_dlog(s, "NSV sync lost\n");
+ av_log(s, AV_LOG_TRACE, "NSV sync lost\n");
return -1;
}
{
NSVContext *nsv = s->priv_data;
AVIOContext *pb = s->pb;
- unsigned int file_size;
+ unsigned int av_unused file_size;
unsigned int size;
int64_t duration;
int strings_size;
int table_entries;
int table_entries_used;
- av_dlog(s, "%s()\n", __FUNCTION__);
-
nsv->state = NSV_UNSYNC; /* in case we fail */
size = avio_rl32(pb);
return -1;
nsv->NSVf_end = size;
- //s->file_size = (uint32_t)avio_rl32(pb);
file_size = (uint32_t)avio_rl32(pb);
- av_dlog(s, "NSV NSVf chunk_size %u\n", size);
- av_dlog(s, "NSV NSVf file_size %u\n", file_size);
+ av_log(s, AV_LOG_TRACE, "NSV NSVf chunk_size %u\n", size);
+ av_log(s, AV_LOG_TRACE, "NSV NSVf file_size %u\n", file_size);
nsv->duration = duration = avio_rl32(pb); /* in ms */
- av_dlog(s, "NSV NSVf duration %"PRId64" ms\n", duration);
+ av_log(s, AV_LOG_TRACE, "NSV NSVf duration %"PRId64" ms\n", duration);
// XXX: store it in AVStreams
strings_size = avio_rl32(pb);
table_entries = avio_rl32(pb);
table_entries_used = avio_rl32(pb);
- av_dlog(s, "NSV NSVf info-strings size: %d, table entries: %d, bis %d\n",
+ av_log(s, AV_LOG_TRACE, "NSV NSVf info-strings size: %d, table entries: %d, bis %d\n",
strings_size, table_entries, table_entries_used);
if (pb->eof_reached)
return -1;
- av_dlog(s, "NSV got header; filepos %"PRId64"\n", avio_tell(pb));
+ av_log(s, AV_LOG_TRACE, "NSV got header; filepos %"PRId64"\n", avio_tell(pb));
if (strings_size > 0) {
char *strings; /* last byte will be '\0' to play safe with str*() */
if (!p || p >= endp)
break;
*p++ = '\0';
- av_dlog(s, "NSV NSVf INFO: %s='%s'\n", token, value);
+ av_log(s, AV_LOG_TRACE, "NSV NSVf INFO: %s='%s'\n", token, value);
av_dict_set(&s->metadata, token, value, 0);
}
av_free(strings);
if (pb->eof_reached)
return -1;
- av_dlog(s, "NSV got infos; filepos %"PRId64"\n", avio_tell(pb));
+ av_log(s, AV_LOG_TRACE, "NSV got infos; filepos %"PRId64"\n", avio_tell(pb));
if (table_entries_used > 0) {
int i;
}
}
- av_dlog(s, "NSV got index; filepos %"PRId64"\n", avio_tell(pb));
-
-#ifdef DEBUG_DUMP_INDEX
-#define V(v) ((v<0x20 || v > 127)?'.':v)
- /* dump index */
- av_dlog(s, "NSV %d INDEX ENTRIES:\n", table_entries);
- av_dlog(s, "NSV [dataoffset][fileoffset]\n", table_entries);
- for (i = 0; i < table_entries; i++) {
- unsigned char b[8];
- avio_seek(pb, size + nsv->nsvs_file_offset[i], SEEK_SET);
- avio_read(pb, b, 8);
- av_dlog(s, "NSV [0x%08lx][0x%08lx]: %02x %02x %02x %02x %02x %02x %02x %02x"
- "%c%c%c%c%c%c%c%c\n",
- nsv->nsvs_file_offset[i], size + nsv->nsvs_file_offset[i],
- b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7],
- V(b[0]), V(b[1]), V(b[2]), V(b[3]), V(b[4]), V(b[5]), V(b[6]), V(b[7]) );
- }
- //avio_seek(pb, size, SEEK_SET); /* go back to end of header */
-#undef V
-#endif
+ av_log(s, AV_LOG_TRACE, "NSV got index; filepos %"PRId64"\n", avio_tell(pb));
avio_seek(pb, nsv->base_offset + size, SEEK_SET); /* required for dumbdriving-271.nsv (2 extra bytes) */
int i;
AVStream *st;
NSVStream *nst;
- av_dlog(s, "%s()\n", __FUNCTION__);
vtag = avio_rl32(pb);
atag = avio_rl32(pb);
vheight = avio_rl16(pb);
i = avio_r8(pb);
- av_dlog(s, "NSV NSVs framerate code %2x\n", i);
+ av_log(s, AV_LOG_TRACE, "NSV NSVs framerate code %2x\n", i);
if(i&0x80) { /* odd way of giving native framerates from docs */
int t=(i & 0x7F)>>2;
if(t<16) framerate = (AVRational){1, t+1};
nsv->avsync = avio_rl16(pb);
nsv->framerate = framerate;
- print_tag("NSV NSVs vtag", vtag, 0);
- print_tag("NSV NSVs atag", atag, 0);
- av_dlog(s, "NSV NSVs vsize %dx%d\n", vwidth, vheight);
+ av_log(s, AV_LOG_TRACE, "NSV NSVs vsize %"PRIu16"x%"PRIu16"\n",
+ vwidth, vheight);
/* XXX change to ap != NULL ? */
if (s->nb_streams == 0) { /* streams not yet published, let's do that */
if (!nst)
goto fail;
st->priv_data = nst;
- st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
- st->codec->codec_tag = vtag;
- st->codec->codec_id = ff_codec_get_id(nsv_codec_video_tags, vtag);
- st->codec->width = vwidth;
- st->codec->height = vheight;
- st->codec->bits_per_coded_sample = 24; /* depth XXX */
+ st->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
+ st->codecpar->codec_tag = vtag;
+ st->codecpar->codec_id = ff_codec_get_id(nsv_codec_video_tags, vtag);
+ st->codecpar->width = vwidth;
+ st->codecpar->height = vheight;
+ st->codecpar->bits_per_coded_sample = 24; /* depth XXX */
avpriv_set_pts_info(st, 64, framerate.den, framerate.num);
st->start_time = 0;
}
}
if (atag != T_NONE) {
-#ifndef DISABLE_AUDIO
st = avformat_new_stream(s, NULL);
if (!st)
goto fail;
if (!nst)
goto fail;
st->priv_data = nst;
- st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
- st->codec->codec_tag = atag;
- st->codec->codec_id = ff_codec_get_id(nsv_codec_audio_tags, atag);
+ st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
+ st->codecpar->codec_tag = atag;
+ st->codecpar->codec_id = ff_codec_get_id(nsv_codec_audio_tags, atag);
st->need_parsing = AVSTREAM_PARSE_FULL; /* for PCM we will read a chunk later and put correct info */
avpriv_set_pts_info(st, 64, 1, framerate.num*1000);
st->start_time = 0;
st->duration = (int64_t)nsv->duration * framerate.num;
-#endif
}
-#ifdef CHECK_SUBSEQUENT_NSVS
} else {
if (nsv->vtag != vtag || nsv->atag != atag || nsv->vwidth != vwidth || nsv->vheight != vwidth) {
- av_dlog(s, "NSV NSVs header values differ from the first one!!!\n");
+ av_log(s, AV_LOG_TRACE, "NSV NSVs header values differ from the first one!!!\n");
//return -1;
}
-#endif /* CHECK_SUBSEQUENT_NSVS */
}
nsv->state = NSV_HAS_READ_NSVS;
NSVContext *nsv = s->priv_data;
int i, err;
- av_dlog(s, "%s()\n", __FUNCTION__);
- av_dlog(s, "filename '%s'\n", s->filename);
-
nsv->state = NSV_UNSYNC;
nsv->ahead[0].data = nsv->ahead[1].data = NULL;
/* now read the first chunk, so we can attempt to decode more info */
err = nsv_read_chunk(s, 1);
- av_dlog(s, "parsed header\n");
+ av_log(s, AV_LOG_TRACE, "parsed header\n");
return err;
}
uint32_t vsize;
uint16_t asize;
uint16_t auxsize;
- uint32_t av_unused auxtag;
-
- av_dlog(s, "%s(%d)\n", __FUNCTION__, fill_header);
if (nsv->ahead[0].data || nsv->ahead[1].data)
return 0; //-1; /* hey! eat what you've in your plate first! */
asize = avio_rl16(pb);
vsize = (vsize << 4) | (auxcount >> 4);
auxcount &= 0x0f;
- av_dlog(s, "NSV CHUNK %d aux, %u bytes video, %d bytes audio\n", auxcount, vsize, asize);
+ av_log(s, AV_LOG_TRACE, "NSV CHUNK %"PRIu8" aux, %"PRIu32" bytes video, %"PRIu16" bytes audio\n",
+ auxcount, vsize, asize);
/* skip aux stuff */
for (i = 0; i < auxcount; i++) {
+ uint32_t av_unused auxtag;
auxsize = avio_rl16(pb);
auxtag = avio_rl32(pb);
- av_dlog(s, "NSV aux data: '%c%c%c%c', %d bytes\n",
- (auxtag & 0x0ff),
- ((auxtag >> 8) & 0x0ff),
- ((auxtag >> 16) & 0x0ff),
- ((auxtag >> 24) & 0x0ff),
- auxsize);
avio_skip(pb, auxsize);
- vsize -= auxsize + sizeof(uint16_t) + sizeof(uint32_t); /* that's becoming braindead */
+ vsize -= auxsize + sizeof(uint16_t) + sizeof(uint32_t); /* that's becoming brain-dead */
}
if (pb->eof_reached)
pkt->dts = nst->frame_offset;
pkt->flags |= nsv->state == NSV_HAS_READ_NSVS ? AV_PKT_FLAG_KEY : 0; /* keyframe only likely on a sync frame */
for (i = 0; i < FFMIN(8, vsize); i++)
- av_dlog(s, "NSV video: [%d] = %02x\n", i, pkt->data[i]);
+ av_log(s, AV_LOG_TRACE, "NSV video: [%d] = %02"PRIx8"\n",
+ i, pkt->data[i]);
}
if(st[NSV_ST_VIDEO])
((NSVStream*)st[NSV_ST_VIDEO]->priv_data)->frame_offset++;
pkt = &nsv->ahead[NSV_ST_AUDIO];
/* read raw audio specific header on the first audio chunk... */
/* on ALL audio chunks ?? seems so! */
- if (asize && st[NSV_ST_AUDIO]->codec->codec_tag == MKTAG('P', 'C', 'M', ' ')/* && fill_header*/) {
+ if (asize && st[NSV_ST_AUDIO]->codecpar->codec_tag == MKTAG('P', 'C', 'M', ' ')/* && fill_header*/) {
uint8_t bps;
uint8_t channels;
uint16_t samplerate;
bps = avio_r8(pb);
channels = avio_r8(pb);
samplerate = avio_rl16(pb);
+ if (!channels || !samplerate)
+ return AVERROR_INVALIDDATA;
asize-=4;
- av_dlog(s, "NSV RAWAUDIO: bps %d, nchan %d, srate %d\n", bps, channels, samplerate);
+ av_log(s, AV_LOG_TRACE, "NSV RAWAUDIO: bps %"PRIu8", nchan %"PRIu8", srate %"PRIu16"\n",
+ bps, channels, samplerate);
if (fill_header) {
st[NSV_ST_AUDIO]->need_parsing = AVSTREAM_PARSE_NONE; /* we know everything */
if (bps != 16) {
- av_dlog(s, "NSV AUDIO bit/sample != 16 (%d)!!!\n", bps);
+ av_log(s, AV_LOG_TRACE, "NSV AUDIO bit/sample != 16 (%"PRIu8")!!!\n", bps);
}
bps /= channels; // ???
if (bps == 8)
- st[NSV_ST_AUDIO]->codec->codec_id = CODEC_ID_PCM_U8;
+ st[NSV_ST_AUDIO]->codecpar->codec_id = AV_CODEC_ID_PCM_U8;
samplerate /= 4;/* UGH ??? XXX */
channels = 1;
- st[NSV_ST_AUDIO]->codec->channels = channels;
- st[NSV_ST_AUDIO]->codec->sample_rate = samplerate;
- av_dlog(s, "NSV RAWAUDIO: bps %d, nchan %d, srate %d\n", bps, channels, samplerate);
+ st[NSV_ST_AUDIO]->codecpar->channels = channels;
+ st[NSV_ST_AUDIO]->codecpar->sample_rate = samplerate;
+ av_log(s, AV_LOG_TRACE, "NSV RAWAUDIO: bps %"PRIu8", nchan %"PRIu8", srate %"PRIu16"\n",
+ bps, channels, samplerate);
}
}
av_get_packet(pb, pkt, asize);
pkt->dts = (((NSVStream*)st[NSV_ST_VIDEO]->priv_data)->frame_offset-1);
pkt->dts *= (int64_t)1000 * nsv->framerate.den;
pkt->dts += (int64_t)nsv->avsync * nsv->framerate.num;
- av_dlog(s, "NSV AUDIO: sync:%d, dts:%"PRId64, nsv->avsync, pkt->dts);
+ av_log(s, AV_LOG_TRACE, "NSV AUDIO: sync:%"PRId16", dts:%"PRId64,
+ nsv->avsync, pkt->dts);
}
nst->frame_offset++;
}
NSVContext *nsv = s->priv_data;
int i, err = 0;
- av_dlog(s, "%s()\n", __FUNCTION__);
-
/* in case we don't already have something to eat ... */
- if (nsv->ahead[0].data == NULL && nsv->ahead[1].data == NULL)
+ if (!nsv->ahead[0].data && !nsv->ahead[1].data)
err = nsv_read_chunk(s, 0);
if (err < 0)
return err;
/* now pick one of the plates */
for (i = 0; i < 2; i++) {
if (nsv->ahead[i].data) {
- av_dlog(s, "%s: using cached packet[%d]\n", __FUNCTION__, i);
/* avoid the cost of new_packet + memcpy(->data) */
memcpy(pkt, &nsv->ahead[i], sizeof(AVPacket));
nsv->ahead[i].data = NULL; /* we ate that one */
}
}
- /* this restaurant is not approvisionned :^] */
+ /* this restaurant is not provisioned :^] */
return -1;
}
static int nsv_read_close(AVFormatContext *s)
{
-/* int i; */
NSVContext *nsv = s->priv_data;
av_freep(&nsv->nsvs_file_offset);
av_freep(&nsv->nsvs_timestamps);
if (nsv->ahead[0].data)
- av_free_packet(&nsv->ahead[0]);
+ av_packet_unref(&nsv->ahead[0]);
if (nsv->ahead[1].data)
- av_free_packet(&nsv->ahead[1]);
-
-#if 0
-
- for(i=0;i<s->nb_streams;i++) {
- AVStream *st = s->streams[i];
- NSVStream *ast = st->priv_data;
- if(ast){
- av_free(ast->index_entries);
- av_free(ast);
- }
- av_free(st->codec->palctrl);
- }
-
-#endif
+ av_packet_unref(&nsv->ahead[1]);
return 0;
}
int score;
int vsize, asize, auxcount;
score = 0;
- av_dlog(NULL, "nsv_probe(), buf_size %d\n", p->buf_size);
+ av_log(NULL, AV_LOG_TRACE, "nsv_probe(), buf_size %d\n", p->buf_size);
/* check file header */
/* streamed files might not have any header */
if (p->buf[0] == 'N' && p->buf[1] == 'S' &&
}
/* so we'll have more luck on extension... */
if (av_match_ext(p->filename, "nsv"))
- return AVPROBE_SCORE_MAX/2;
+ return AVPROBE_SCORE_EXTENSION;
/* FIXME: add mime-type check */
return score;
}
projects / ffmpeg / blobdiff