* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
+#include "libavutil/avstring.h"
#include "avformat.h"
#include "rm.h"
-
-static void get_str(ByteIOContext *pb, char *buf, int buf_size)
+static inline void get_strl(ByteIOContext *pb, char *buf, int buf_size, int len)
{
- int len, i;
- char *q;
+ int i;
+ char *q, r;
- len = get_be16(pb);
q = buf;
for(i=0;i<len;i++) {
+ r = get_byte(pb);
if (i < buf_size - 1)
- *q++ = get_byte(pb);
+ *q++ = r;
}
- *q = '\0';
+ if (buf_size > 0) *q = '\0';
}
-static void get_str8(ByteIOContext *pb, char *buf, int buf_size)
+static void get_str16(ByteIOContext *pb, char *buf, int buf_size)
{
- int len, i;
- char *q;
+ get_strl(pb, buf, buf_size, get_be16(pb));
+}
- len = get_byte(pb);
- q = buf;
- for(i=0;i<len;i++) {
- if (i < buf_size - 1)
- *q++ = get_byte(pb);
- }
- *q = '\0';
+static void get_str8(ByteIOContext *pb, char *buf, int buf_size)
+{
+ get_strl(pb, buf, buf_size, get_byte(pb));
}
static int rm_read_audio_stream_info(AVFormatContext *s, AVStream *st,
int read_all)
{
RMContext *rm = s->priv_data;
- ByteIOContext *pb = &s->pb;
+ ByteIOContext *pb = s->pb;
char buf[256];
uint32_t version;
int i;
st->codec->codec_type = CODEC_TYPE_AUDIO;
if (!strcmp(buf, "dnet")) {
st->codec->codec_id = CODEC_ID_AC3;
+ st->need_parsing = AVSTREAM_PARSE_FULL;
} else if (!strcmp(buf, "28_8")) {
st->codec->codec_id = CODEC_ID_RA_288;
st->codec->extradata_size= 0;
}
} else {
st->codec->codec_id = CODEC_ID_NONE;
- pstrcpy(st->codec->codec_name, sizeof(st->codec->codec_name),
- buf);
+ av_strlcpy(st->codec->codec_name, buf, sizeof(st->codec->codec_name));
}
if (read_all) {
get_byte(pb);
return 0;
}
+int
+ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVStream *st)
+{
+ ByteIOContext *pb = s->pb;
+ unsigned int v;
+ int codec_data_size, size;
+ int64_t codec_pos;
+
+ codec_data_size = get_be32(pb);
+ codec_pos = url_ftell(pb);
+ v = get_be32(pb);
+ if (v == MKTAG(0xfd, 'a', 'r', '.')) {
+ /* ra type header */
+ if (rm_read_audio_stream_info(s, st, 0))
+ return -1;
+ } else {
+ int fps, fps2;
+ if (get_le32(pb) != MKTAG('V', 'I', 'D', 'O')) {
+ fail1:
+ av_log(st->codec, AV_LOG_ERROR, "Unsupported video codec\n");
+ goto skip;
+ }
+ st->codec->codec_tag = get_le32(pb);
+// av_log(NULL, AV_LOG_DEBUG, "%X %X\n", st->codec->codec_tag, MKTAG('R', 'V', '2', '0'));
+ if ( st->codec->codec_tag != MKTAG('R', 'V', '1', '0')
+ && st->codec->codec_tag != MKTAG('R', 'V', '2', '0')
+ && st->codec->codec_tag != MKTAG('R', 'V', '3', '0')
+ && st->codec->codec_tag != MKTAG('R', 'V', '4', '0'))
+ goto fail1;
+ st->codec->width = get_be16(pb);
+ st->codec->height = get_be16(pb);
+ st->codec->time_base.num= 1;
+ fps= get_be16(pb);
+ st->codec->codec_type = CODEC_TYPE_VIDEO;
+ get_be32(pb);
+ fps2= get_be16(pb);
+ get_be16(pb);
+
+ st->codec->extradata_size= codec_data_size - (url_ftell(pb) - codec_pos);
+
+ if(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)st->codec->extradata_size){
+ //check is redundant as get_buffer() will catch this
+ av_log(s, AV_LOG_ERROR, "st->codec->extradata_size too large\n");
+ return -1;
+ }
+ st->codec->extradata= av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
+ if (!st->codec->extradata)
+ return AVERROR(ENOMEM);
+ get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
+
+// av_log(NULL, AV_LOG_DEBUG, "fps= %d fps2= %d\n", fps, fps2);
+ st->codec->time_base.den = fps * st->codec->time_base.num;
+ switch(((uint8_t*)st->codec->extradata)[4]>>4){
+ case 1: st->codec->codec_id = CODEC_ID_RV10; break;
+ case 2: st->codec->codec_id = CODEC_ID_RV20; break;
+ case 3: st->codec->codec_id = CODEC_ID_RV30; break;
+ case 4: st->codec->codec_id = CODEC_ID_RV40; break;
+ default: goto fail1;
+ }
+ }
+
+skip:
+ /* skip codec info */
+ size = url_ftell(pb) - codec_pos;
+ url_fskip(pb, codec_data_size - size);
+
+ return 0;
+}
+
+
static int rm_read_header_old(AVFormatContext *s, AVFormatParameters *ap)
{
RMContext *rm = s->priv_data;
{
RMContext *rm = s->priv_data;
AVStream *st;
- ByteIOContext *pb = &s->pb;
- unsigned int tag, v;
- int tag_size, size, codec_data_size, i;
- int64_t codec_pos;
+ ByteIOContext *pb = s->pb;
+ unsigned int tag;
+ int tag_size;
unsigned int start_time, duration;
char buf[128];
int flags = 0;
/* very old .ra format */
return rm_read_header_old(s, ap);
} else if (tag != MKTAG('.', 'R', 'M', 'F')) {
- return AVERROR_IO;
+ return AVERROR(EIO);
}
get_be32(pb); /* header size */
for(;;) {
if (url_feof(pb))
- goto fail;
+ return -1;
tag = get_le32(pb);
tag_size = get_be32(pb);
get_be16(pb);
tag_size);
#endif
if (tag_size < 10 && tag != MKTAG('D', 'A', 'T', 'A'))
- goto fail;
+ return -1;
switch(tag) {
case MKTAG('P', 'R', 'O', 'P'):
/* file header */
flags = get_be16(pb); /* flags */
break;
case MKTAG('C', 'O', 'N', 'T'):
- get_str(pb, s->title, sizeof(s->title));
- get_str(pb, s->author, sizeof(s->author));
- get_str(pb, s->copyright, sizeof(s->copyright));
- get_str(pb, s->comment, sizeof(s->comment));
+ get_str16(pb, s->title, sizeof(s->title));
+ get_str16(pb, s->author, sizeof(s->author));
+ get_str16(pb, s->copyright, sizeof(s->copyright));
+ get_str16(pb, s->comment, sizeof(s->comment));
break;
case MKTAG('M', 'D', 'P', 'R'):
st = av_new_stream(s, 0);
if (!st)
- goto fail;
+ return AVERROR(ENOMEM);
st->id = get_be16(pb);
get_be32(pb); /* max bit rate */
st->codec->bit_rate = get_be32(pb); /* bit rate */
st->duration = duration;
get_str8(pb, buf, sizeof(buf)); /* desc */
get_str8(pb, buf, sizeof(buf)); /* mimetype */
- codec_data_size = get_be32(pb);
- codec_pos = url_ftell(pb);
st->codec->codec_type = CODEC_TYPE_DATA;
av_set_pts_info(st, 64, 1, 1000);
-
- v = get_be32(pb);
- if (v == MKTAG(0xfd, 'a', 'r', '.')) {
- /* ra type header */
- if (rm_read_audio_stream_info(s, st, 0))
- return -1;
- } else {
- int fps, fps2;
- if (get_le32(pb) != MKTAG('V', 'I', 'D', 'O')) {
- fail1:
- av_log(st->codec, AV_LOG_ERROR, "Unsupported video codec\n");
- goto skip;
- }
- st->codec->codec_tag = get_le32(pb);
-// av_log(NULL, AV_LOG_DEBUG, "%X %X\n", st->codec->codec_tag, MKTAG('R', 'V', '2', '0'));
- if ( st->codec->codec_tag != MKTAG('R', 'V', '1', '0')
- && st->codec->codec_tag != MKTAG('R', 'V', '2', '0')
- && st->codec->codec_tag != MKTAG('R', 'V', '3', '0')
- && st->codec->codec_tag != MKTAG('R', 'V', '4', '0'))
- goto fail1;
- st->codec->width = get_be16(pb);
- st->codec->height = get_be16(pb);
- st->codec->time_base.num= 1;
- fps= get_be16(pb);
- st->codec->codec_type = CODEC_TYPE_VIDEO;
- get_be32(pb);
- fps2= get_be16(pb);
- get_be16(pb);
-
- st->codec->extradata_size= codec_data_size - (url_ftell(pb) - codec_pos);
-
- if(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE <= (unsigned)st->codec->extradata_size){
- //check is redundant as get_buffer() will catch this
- av_log(s, AV_LOG_ERROR, "st->codec->extradata_size too large\n");
- return -1;
- }
- st->codec->extradata= av_mallocz(st->codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
- get_buffer(pb, st->codec->extradata, st->codec->extradata_size);
-
-// av_log(NULL, AV_LOG_DEBUG, "fps= %d fps2= %d\n", fps, fps2);
- st->codec->time_base.den = fps * st->codec->time_base.num;
- switch(((uint8_t*)st->codec->extradata)[4]>>4){
- case 1: st->codec->codec_id = CODEC_ID_RV10; break;
- case 2: st->codec->codec_id = CODEC_ID_RV20; break;
- case 3: st->codec->codec_id = CODEC_ID_RV30; break;
- case 4: st->codec->codec_id = CODEC_ID_RV40; break;
- default: goto fail1;
- }
- }
-skip:
- /* skip codec info */
- size = url_ftell(pb) - codec_pos;
- url_fskip(pb, codec_data_size - size);
+ if (ff_rm_read_mdpr_codecdata(s, st) < 0)
+ return -1;
break;
case MKTAG('D', 'A', 'T', 'A'):
goto header_end;
if (!rm->nb_packets && (flags & 4))
rm->nb_packets = 3600 * 25;
get_be32(pb); /* next data header */
+ rm->curpic_num = -1;
return 0;
-
- fail:
- for(i=0;i<s->nb_streams;i++) {
- av_free(s->streams[i]);
- }
- return AVERROR_IO;
}
static int get_num(ByteIOContext *pb, int *len)
n = get_be16(pb);
(*len)-=2;
+ n &= 0x7FFF;
if (n >= 0x4000) {
return n - 0x4000;
} else {
static int sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stream_index, int64_t *pos){
RMContext *rm = s->priv_data;
- ByteIOContext *pb = &s->pb;
+ ByteIOContext *pb = s->pb;
int len, num, res, i;
AVStream *st;
uint32_t state=0xFFFFFFFF;
while(!url_feof(pb)){
- *pos= url_ftell(pb);
+ *pos= url_ftell(pb) - 3;
if(rm->remaining_len > 0){
num= rm->current_stream;
len= rm->remaining_len;
return -1;
}
+static int rm_assemble_video_frame(AVFormatContext *s, RMContext *rm, AVPacket *pkt, int len)
+{
+ ByteIOContext *pb = s->pb;
+ int hdr, seq, pic_num, len2, pos;
+ int type;
+
+ hdr = get_byte(pb); len--;
+ type = hdr >> 6;
+ switch(type){
+ case 0: // slice
+ case 2: // last slice
+ seq = get_byte(pb); len--;
+ len2 = get_num(pb, &len);
+ pos = get_num(pb, &len);
+ pic_num = get_byte(pb); len--;
+ rm->remaining_len = len;
+ break;
+ case 1: //whole frame
+ seq = get_byte(pb); len--;
+ if(av_new_packet(pkt, len + 9) < 0)
+ return AVERROR(EIO);
+ pkt->data[0] = 0;
+ AV_WL32(pkt->data + 1, 1);
+ AV_WL32(pkt->data + 5, 0);
+ get_buffer(pb, pkt->data + 9, len);
+ rm->remaining_len = 0;
+ return 0;
+ case 3: //frame as a part of packet
+ len2 = get_num(pb, &len);
+ pos = get_num(pb, &len);
+ pic_num = get_byte(pb); len--;
+ rm->remaining_len = len - len2;
+ if(av_new_packet(pkt, len2 + 9) < 0)
+ return AVERROR(EIO);
+ pkt->data[0] = 0;
+ AV_WL32(pkt->data + 1, 1);
+ AV_WL32(pkt->data + 5, 0);
+ get_buffer(pb, pkt->data + 9, len2);
+ return 0;
+ }
+ //now we have to deal with single slice
+
+ if((seq & 0x7F) == 1 || rm->curpic_num != pic_num){
+ rm->slices = ((hdr & 0x3F) << 1) + 1;
+ rm->videobufsize = len2 + 8*rm->slices + 1;
+ av_free(rm->videobuf);
+ if(!(rm->videobuf = av_malloc(rm->videobufsize)))
+ return AVERROR(ENOMEM);
+ rm->videobufpos = 8*rm->slices + 1;
+ rm->cur_slice = 0;
+ rm->curpic_num = pic_num;
+ rm->pktpos = url_ftell(pb);
+ }
+ if(type == 2)
+ len = FFMIN(len, pos);
+
+ if(++rm->cur_slice > rm->slices)
+ return 1;
+ AV_WL32(rm->videobuf - 7 + 8*rm->cur_slice, 1);
+ AV_WL32(rm->videobuf - 3 + 8*rm->cur_slice, rm->videobufpos - 8*rm->slices - 1);
+ if(rm->videobufpos + len > rm->videobufsize)
+ return 1;
+ if (get_buffer(pb, rm->videobuf + rm->videobufpos, len) != len)
+ return AVERROR(EIO);
+ rm->videobufpos += len;
+ rm->remaining_len-= len;
+
+ if(type == 2 || (rm->videobufpos) == rm->videobufsize){
+ rm->videobuf[0] = rm->cur_slice-1;
+ if(av_new_packet(pkt, rm->videobufpos - 8*(rm->slices - rm->cur_slice)) < 0)
+ return AVERROR(ENOMEM);
+ memcpy(pkt->data, rm->videobuf, 1 + 8*rm->cur_slice);
+ memcpy(pkt->data + 1 + 8*rm->cur_slice, rm->videobuf + 1 + 8*rm->slices,
+ rm->videobufpos - 1 - 8*rm->slices);
+ pkt->pts = AV_NOPTS_VALUE;
+ pkt->pos = rm->pktpos;
+ return 0;
+ }
+
+ return 1;
+}
+
+static inline void
+rm_ac3_swap_bytes (AVStream *st, AVPacket *pkt)
+{
+ uint8_t *ptr;
+ int j;
+
+ if (st->codec->codec_id == CODEC_ID_AC3) {
+ ptr = pkt->data;
+ for (j=0;j<pkt->size;j+=2) {
+ FFSWAP(int, ptr[0], ptr[1]);
+ ptr += 2;
+ }
+ }
+}
+
+int
+ff_rm_parse_packet (AVFormatContext *s, AVStream *st, int len, AVPacket *pkt,
+ int *seq, int *flags, int64_t *timestamp)
+{
+ ByteIOContext *pb = s->pb;
+ RMContext *rm = s->priv_data;
+
+ if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
+ rm->current_stream= st->id;
+ if(rm_assemble_video_frame(s, rm, pkt, len) == 1)
+ return -1; //got partial frame
+ } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
+ if ((st->codec->codec_id == CODEC_ID_RA_288) ||
+ (st->codec->codec_id == CODEC_ID_COOK) ||
+ (st->codec->codec_id == CODEC_ID_ATRAC3)) {
+ int x;
+ int sps = rm->sub_packet_size;
+ int cfs = rm->coded_framesize;
+ int h = rm->sub_packet_h;
+ int y = rm->sub_packet_cnt;
+ int w = rm->audio_framesize;
+
+ if (*flags & 2)
+ y = rm->sub_packet_cnt = 0;
+ if (!y)
+ rm->audiotimestamp = *timestamp;
+
+ switch(st->codec->codec_id) {
+ case CODEC_ID_RA_288:
+ for (x = 0; x < h/2; x++)
+ get_buffer(pb, rm->audiobuf+x*2*w+y*cfs, cfs);
+ break;
+ case CODEC_ID_ATRAC3:
+ case CODEC_ID_COOK:
+ for (x = 0; x < w/sps; x++)
+ get_buffer(pb, rm->audiobuf+sps*(h*x+((h+1)/2)*(y&1)+(y>>1)), sps);
+ break;
+ }
+
+ if (++(rm->sub_packet_cnt) < h)
+ return -1;
+ else {
+ rm->sub_packet_cnt = 0;
+ rm->audio_stream_num = st->index;
+ rm->audio_pkt_cnt = h * w / st->codec->block_align - 1;
+ // Release first audio packet
+ av_new_packet(pkt, st->codec->block_align);
+ memcpy(pkt->data, rm->audiobuf, st->codec->block_align);
+ *timestamp = rm->audiotimestamp;
+ *flags = 2; // Mark first packet as keyframe
+ }
+ } else if (st->codec->codec_id == CODEC_ID_AAC) {
+ int x;
+ rm->audio_stream_num = st->index;
+ rm->sub_packet_cnt = (get_be16(pb) & 0xf0) >> 4;
+ if (rm->sub_packet_cnt) {
+ for (x = 0; x < rm->sub_packet_cnt; x++)
+ rm->sub_packet_lengths[x] = get_be16(pb);
+ // Release first audio packet
+ rm->audio_pkt_cnt = rm->sub_packet_cnt - 1;
+ av_get_packet(pb, pkt, rm->sub_packet_lengths[0]);
+ *flags = 2; // Mark first packet as keyframe
+ }
+ } else {
+ av_get_packet(pb, pkt, len);
+ rm_ac3_swap_bytes(st, pkt);
+ }
+ } else
+ av_get_packet(pb, pkt, len);
+
+ if( (st->discard >= AVDISCARD_NONKEY && !(*flags&2))
+ || st->discard >= AVDISCARD_ALL){
+ av_free_packet(pkt);
+ return -1;
+ }
+
+ pkt->stream_index = st->index;
+
+#if 0
+ if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
+ if(st->codec->codec_id == CODEC_ID_RV20){
+ int seq= 128*(pkt->data[2]&0x7F) + (pkt->data[3]>>1);
+ av_log(NULL, AV_LOG_DEBUG, "%d %"PRId64" %d\n", *timestamp, *timestamp*512LL/25, seq);
+
+ seq |= (*timestamp&~0x3FFF);
+ if(seq - *timestamp > 0x2000) seq -= 0x4000;
+ if(seq - *timestamp < -0x2000) seq += 0x4000;
+ }
+ }
+#endif
+
+ pkt->pts= *timestamp;
+ if (*flags & 2)
+ pkt->flags |= PKT_FLAG_KEY;
+
+ return 0;
+}
+
+void
+ff_rm_retrieve_cache (AVFormatContext *s, AVStream *st, AVPacket *pkt)
+{
+ ByteIOContext *pb = s->pb;
+ RMContext *rm = s->priv_data;
+
+ assert (rm->audio_pkt_cnt > 0);
+
+ if (st->codec->codec_id == CODEC_ID_AAC)
+ av_get_packet(pb, pkt, rm->sub_packet_lengths[rm->sub_packet_cnt - rm->audio_pkt_cnt]);
+ else {
+ av_new_packet(pkt, st->codec->block_align);
+ memcpy(pkt->data, rm->audiobuf + st->codec->block_align *
+ (rm->sub_packet_h * rm->audio_framesize / st->codec->block_align - rm->audio_pkt_cnt),
+ st->codec->block_align);
+ }
+ rm->audio_pkt_cnt--;
+ pkt->flags = 0;
+ pkt->stream_index = st->index;
+}
+
static int rm_read_packet(AVFormatContext *s, AVPacket *pkt)
{
RMContext *rm = s->priv_data;
- ByteIOContext *pb = &s->pb;
+ ByteIOContext *pb = s->pb;
AVStream *st;
- int i, len, tmp, j;
+ int i, len;
int64_t timestamp, pos;
- uint8_t *ptr;
int flags;
if (rm->audio_pkt_cnt) {
// If there are queued audio packet return them first
st = s->streams[rm->audio_stream_num];
- if (st->codec->codec_id == CODEC_ID_AAC)
- av_get_packet(pb, pkt, rm->sub_packet_lengths[rm->sub_packet_cnt - rm->audio_pkt_cnt]);
- else {
- av_new_packet(pkt, st->codec->block_align);
- memcpy(pkt->data, rm->audiobuf + st->codec->block_align *
- (rm->sub_packet_h * rm->audio_framesize / st->codec->block_align - rm->audio_pkt_cnt),
- st->codec->block_align);
- }
- rm->audio_pkt_cnt--;
- pkt->flags = 0;
- pkt->stream_index = rm->audio_stream_num;
+ ff_rm_retrieve_cache(s, st, pkt);
} else if (rm->old_format) {
st = s->streams[0];
if (st->codec->codec_id == CODEC_ID_RA_288) {
for (y = 0; y < rm->sub_packet_h; y++)
for (x = 0; x < rm->sub_packet_h/2; x++)
if (get_buffer(pb, rm->audiobuf+x*2*rm->audio_framesize+y*rm->coded_framesize, rm->coded_framesize) <= 0)
- return AVERROR_IO;
+ return AVERROR(EIO);
rm->audio_stream_num = 0;
rm->audio_pkt_cnt = rm->sub_packet_h * rm->audio_framesize / st->codec->block_align - 1;
// Release first audio packet
len= av_get_packet(pb, pkt, len);
pkt->stream_index = 0;
if (len <= 0) {
- return AVERROR_IO;
+ return AVERROR(EIO);
}
pkt->size = len;
}
+ rm_ac3_swap_bytes(st, pkt);
} else {
int seq=1;
resync:
len=sync(s, ×tamp, &flags, &i, &pos);
if(len<0)
- return AVERROR_IO;
+ return AVERROR(EIO);
st = s->streams[i];
- if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
- int h, pic_num, len2, pos;
-
- h= get_byte(pb); len--;
- if(!(h & 0x40)){
- seq = get_byte(pb); len--;
- }
-
- if((h & 0xc0) == 0x40){
- len2= pos= 0;
- }else{
- len2 = get_num(pb, &len);
- pos = get_num(pb, &len);
- }
- /* picture number */
- pic_num= get_byte(pb); len--;
- rm->remaining_len= len;
- rm->current_stream= st->id;
-
-// av_log(NULL, AV_LOG_DEBUG, "%X len:%d pos:%d len2:%d pic_num:%d\n",h, len, pos, len2, pic_num);
- if(len2 && len2<len)
- len=len2;
- rm->remaining_len-= len;
- av_get_packet(pb, pkt, len);
-
- } else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
- if ((st->codec->codec_id == CODEC_ID_RA_288) ||
- (st->codec->codec_id == CODEC_ID_COOK) ||
- (st->codec->codec_id == CODEC_ID_ATRAC3)) {
- int x;
- int sps = rm->sub_packet_size;
- int cfs = rm->coded_framesize;
- int h = rm->sub_packet_h;
- int y = rm->sub_packet_cnt;
- int w = rm->audio_framesize;
-
- if (flags & 2)
- y = rm->sub_packet_cnt = 0;
- if (!y)
- rm->audiotimestamp = timestamp;
-
- switch(st->codec->codec_id) {
- case CODEC_ID_RA_288:
- for (x = 0; x < h/2; x++)
- get_buffer(pb, rm->audiobuf+x*2*w+y*cfs, cfs);
- break;
- case CODEC_ID_ATRAC3:
- case CODEC_ID_COOK:
- for (x = 0; x < w/sps; x++)
- get_buffer(pb, rm->audiobuf+sps*(h*x+((h+1)/2)*(y&1)+(y>>1)), sps);
- break;
- }
-
- if (++(rm->sub_packet_cnt) < h)
- goto resync;
- else {
- rm->sub_packet_cnt = 0;
- rm->audio_stream_num = i;
- rm->audio_pkt_cnt = h * w / st->codec->block_align - 1;
- // Release first audio packet
- av_new_packet(pkt, st->codec->block_align);
- memcpy(pkt->data, rm->audiobuf, st->codec->block_align);
- timestamp = rm->audiotimestamp;
- flags = 2; // Mark first packet as keyframe
- }
- } else if (st->codec->codec_id == CODEC_ID_AAC) {
- int x;
- rm->audio_stream_num = i;
- rm->sub_packet_cnt = (get_be16(pb) & 0xf0) >> 4;
- if (rm->sub_packet_cnt) {
- for (x = 0; x < rm->sub_packet_cnt; x++)
- rm->sub_packet_lengths[x] = get_be16(pb);
- // Release first audio packet
- rm->audio_pkt_cnt = rm->sub_packet_cnt - 1;
- av_get_packet(pb, pkt, rm->sub_packet_lengths[0]);
- flags = 2; // Mark first packet as keyframe
- }
- } else
- av_get_packet(pb, pkt, len);
-
- } else
- av_get_packet(pb, pkt, len);
-
- if( (st->discard >= AVDISCARD_NONKEY && !(flags&2))
- || st->discard >= AVDISCARD_ALL){
- av_free_packet(pkt);
+ if (ff_rm_parse_packet (s, st, len, pkt, &seq, &flags, ×tamp) < 0)
goto resync;
- }
-
- pkt->stream_index = i;
-#if 0
- if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
- if(st->codec->codec_id == CODEC_ID_RV20){
- int seq= 128*(pkt->data[2]&0x7F) + (pkt->data[3]>>1);
- av_log(NULL, AV_LOG_DEBUG, "%d %"PRId64" %d\n", timestamp, timestamp*512LL/25, seq);
-
- seq |= (timestamp&~0x3FFF);
- if(seq - timestamp > 0x2000) seq -= 0x4000;
- if(seq - timestamp < -0x2000) seq += 0x4000;
- }
- }
-#endif
- pkt->pts= timestamp;
- if(flags&2){
- pkt->flags |= PKT_FLAG_KEY;
- if((seq&0x7F) == 1)
- av_add_index_entry(st, pos, timestamp, 0, 0, AVINDEX_KEYFRAME);
- }
+ if((flags&2) && (seq&0x7F) == 1)
+ av_add_index_entry(st, pos, timestamp, 0, 0, AVINDEX_KEYFRAME);
}
- /* for AC3, needs to swap bytes */
- if (st->codec->codec_id == CODEC_ID_AC3) {
- ptr = pkt->data;
- for(j=0;j<len;j+=2) {
- tmp = ptr[0];
- ptr[0] = ptr[1];
- ptr[1] = tmp;
- ptr += 2;
- }
- }
return 0;
}
RMContext *rm = s->priv_data;
av_free(rm->audiobuf);
+ av_free(rm->videobuf);
return 0;
}
if(rm->old_format)
return AV_NOPTS_VALUE;
- url_fseek(&s->pb, pos, SEEK_SET);
+ url_fseek(s->pb, pos, SEEK_SET);
rm->remaining_len=0;
for(;;){
int seq=1;
st = s->streams[stream_index2];
if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
- h= get_byte(&s->pb); len--;
+ h= get_byte(s->pb); len--;
if(!(h & 0x40)){
- seq = get_byte(&s->pb); len--;
+ seq = get_byte(s->pb); len--;
}
}
break;
}
- url_fskip(&s->pb, len);
+ url_fskip(s->pb, len);
}
*ppos = pos;
return dts;
AVInputFormat rm_demuxer = {
"rm",
- "rm format",
+ NULL_IF_CONFIG_SMALL("RM format"),
sizeof(RMContext),
rm_probe,
rm_read_header,
projects / ffmpeg / blobdiff