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ffmpeg
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move code which adds a AVPacket into the packet buffer into its own function 

Originally committed as revision 9871 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-08-03 08:56:00 +00:00
parent 392b748293
commit 02b15cc811
1 changed files with 20 additions and 33 deletions
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53
libavformat/utils.c
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@ -813,6 +813,22 @@ static int av_read_frame_internal(AVFormatContext *s, AVPacket *pkt)
return 0;
}
static AVPacket *add_to_pktbuf(AVFormatContext *s, AVPacket *pkt){
AVPacketList *pktl= s->packet_buffer;
AVPacketList **plast_pktl= &s->packet_buffer;
while(*plast_pktl) plast_pktl= &(*plast_pktl)->next; //FIXME maybe maintain pointer to the last?
pktl = av_mallocz(sizeof(AVPacketList));
if (!pktl)
return NULL;
/* add the packet in the buffered packet list */
*plast_pktl = pktl;
pktl->pkt= *pkt;
return &pktl->pkt;
}
int av_read_frame(AVFormatContext *s, AVPacket *pkt)
{
AVPacketList *pktl;
@ -848,7 +864,6 @@ int av_read_frame(AVFormatContext *s, AVPacket *pkt)
}
}
if(genpts){
AVPacketList **plast_pktl= &s->packet_buffer;
int ret= av_read_frame_internal(s, pkt);
if(ret<0){
if(pktl && ret != AVERROR(EAGAIN)){
@ -858,19 +873,8 @@ int av_read_frame(AVFormatContext *s, AVPacket *pkt)
return ret;
}
/* duplicate the packet */
if (av_dup_packet(pkt) < 0)
if(av_dup_packet(add_to_pktbuf(s, pkt)) < 0)
return AVERROR(ENOMEM);
while(*plast_pktl) plast_pktl= &(*plast_pktl)->next; //FIXME maybe maintain pointer to the last?
pktl = av_mallocz(sizeof(AVPacketList));
if (!pktl)
return AVERROR(ENOMEM);
/* add the packet in the buffered packet list */
*plast_pktl = pktl;
pktl->pkt= *pkt;
}else{
assert(!s->packet_buffer);
return av_read_frame_internal(s, pkt);
@ -1712,7 +1716,6 @@ int av_find_stream_info(AVFormatContext *ic)
int i, count, ret, read_size, j;
AVStream *st;
AVPacket pkt1, *pkt;
AVPacketList *pktl=NULL, **ppktl;
int64_t last_dts[MAX_STREAMS];
int duration_count[MAX_STREAMS]={0};
double (*duration_error)[MAX_STD_TIMEBASES];
@ -1749,7 +1752,6 @@ int av_find_stream_info(AVFormatContext *ic)
memset(probe_data, 0, sizeof(probe_data));
count = 0;
read_size = 0;
ppktl = &ic->packet_buffer;
for(;;) {
/* check if one codec still needs to be handled */
for(i=0;i<ic->nb_streams;i++) {
@ -1801,24 +1803,9 @@ int av_find_stream_info(AVFormatContext *ic)
break;
}
pktl = av_mallocz(sizeof(AVPacketList));
if (!pktl) {
ret = AVERROR(ENOMEM);
break;
}
/* add the packet in the buffered packet list */
*ppktl = pktl;
ppktl = &pktl->next;
pkt = &pktl->pkt;
*pkt = pkt1;
/* duplicate the packet */
if (av_dup_packet(pkt) < 0) {
ret = AVERROR(ENOMEM);
break;
}
pkt= add_to_pktbuf(ic, &pkt1);
if(av_dup_packet(pkt) < 0)
return AVERROR(ENOMEM);
read_size += pkt->size;