* 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"
-#include "avstring.h"
static inline void get_strl(ByteIOContext *pb, char *buf, int buf_size, int len)
{
int read_all)
{
RMContext *rm = s->priv_data;
- ByteIOContext *pb = &s->pb;
+ ByteIOContext *pb = s->pb;
char buf[256];
uint32_t version;
int i;
return 0;
}
-static int
+int
ff_rm_read_mdpr_codecdata (AVFormatContext *s, AVStream *st)
{
- ByteIOContext *pb = &s->pb;
+ ByteIOContext *pb = s->pb;
unsigned int v;
int codec_data_size, size;
int64_t codec_pos;
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);
{
RMContext *rm = s->priv_data;
AVStream *st;
- ByteIOContext *pb = &s->pb;
+ ByteIOContext *pb = s->pb;
unsigned int tag;
- int tag_size, i;
+ int tag_size;
unsigned int start_time, duration;
char buf[128];
int flags = 0;
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 */
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 */
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(EIO);
}
static int get_num(ByteIOContext *pb, int *len)
n = get_be16(pb);
(*len)-=2;
-// n &= 0x7FFF;
+ 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;
static int rm_assemble_video_frame(AVFormatContext *s, RMContext *rm, AVPacket *pkt, int len)
{
- ByteIOContext *pb = &s->pb;
+ ByteIOContext *pb = s->pb;
int hdr, seq, pic_num, len2, pos;
int type;
- int ssize;
hdr = get_byte(pb); len--;
type = hdr >> 6;
if((seq & 0x7F) == 1 || rm->curpic_num != pic_num){
rm->slices = ((hdr & 0x3F) << 1) + 1;
- ssize = len2 + 8*rm->slices + 1;
- rm->videobuf = av_realloc(rm->videobuf, ssize);
- rm->videobufsize = ssize;
+ 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){
+ if(type == 2)
len = FFMIN(len, pos);
- pos = len2 - pos;
- }
- if(++rm->cur_slice > rm->cur_slice)
+ 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);
return 1;
if (get_buffer(pb, rm->videobuf + rm->videobufpos, len) != len)
return AVERROR(EIO);
- rm->videobufpos += len,
+ rm->videobufpos += len;
rm->remaining_len-= len;
if(type == 2 || (rm->videobufpos) == rm->videobufsize){
- //adjust slice headers
- memmove(rm->videobuf + 1 + 8*rm->cur_slice, rm->videobuf + 1 + 8*rm->slices, rm->videobufsize - 1 - 8*rm->slices);
- ssize = rm->videobufsize - 8*(rm->slices - rm->cur_slice);
-
rm->videobuf[0] = rm->cur_slice-1;
- if(av_new_packet(pkt, ssize) < 0)
+ if(av_new_packet(pkt, rm->videobufpos - 8*(rm->slices - rm->cur_slice)) < 0)
return AVERROR(ENOMEM);
- memcpy(pkt->data, rm->videobuf, ssize);
+ 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 int
+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;
+ ByteIOContext *pb = s->pb;
RMContext *rm = s->priv_data;
if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
av_get_packet(pb, pkt, rm->sub_packet_lengths[0]);
*flags = 2; // Mark first packet as keyframe
}
- } else
+ } else {
av_get_packet(pb, pkt, len);
-
+ rm_ac3_swap_bytes(st, pkt);
+ }
} else
av_get_packet(pb, pkt, len);
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, 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) {
}
pkt->size = len;
}
+ rm_ac3_swap_bytes(st, pkt);
} else {
int seq=1;
resync:
if (ff_rm_parse_packet (s, st, len, pkt, &seq, &flags, ×tamp) < 0)
goto resync;
- if(flags&2){
- 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<pkt->size;j+=2) {
- FFSWAP(int, ptr[0], ptr[1]);
- ptr += 2;
- }
- }
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