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Copy nuv header only when the video codec is nuv 

Originally committed as revision 10439 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2007-09-09 07:25:52 +00:00
parent e9314de600
commit dd6ca72186
1 changed files with 13 additions and 5 deletions
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18
libavformat/nuv.c
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@ -24,6 +24,7 @@
typedef struct {
int v_id;
int a_id;
int rtjpg_video;
} NUVContext;
typedef enum {
@ -173,6 +174,8 @@ static int nuv_header(AVFormatContext *s, AVFormatParameters *ap) {
ctx->a_id = -1;
get_codec_data(pb, vst, ast, is_mythtv);
ctx->rtjpg_video = vst->codec->codec_id == CODEC_ID_NUV;
ctx->rtjpg_video |= vst->codec->codec_tag == MKTAG('R', 'J', 'P', 'G');
return 0;
}
@ -185,27 +188,32 @@ static int nuv_packet(AVFormatContext *s, AVPacket *pkt) {
frametype_t frametype;
int ret, size;
while (!url_feof(pb)) {
int copyhdrsize = ctx->rtjpg_video ? HDRSIZE : 0;
ret = get_buffer(pb, hdr, HDRSIZE);
if (ret <= 0)
return ret ? ret : -1;
frametype = hdr[0];
size = PKTSIZE(AV_RL32(&hdr[8]));
switch (frametype) {
case NUV_VIDEO:
case NUV_EXTRADATA:
if (!ctx->rtjpg_video) {
url_fskip(pb, size);
break;
}
case NUV_VIDEO:
if (ctx->v_id < 0) {
av_log(s, AV_LOG_ERROR, "Video packet in file without video stream!\n");
url_fskip(pb, size);
break;
}
ret = av_new_packet(pkt, HDRSIZE + size);
ret = av_new_packet(pkt, copyhdrsize + size);
if (ret < 0)
return ret;
pkt->pos = url_ftell(pb);
pkt->pos = url_ftell(pb) - copyhdrsize;
pkt->pts = AV_RL32(&hdr[4]);
pkt->stream_index = ctx->v_id;
memcpy(pkt->data, hdr, HDRSIZE);
ret = get_buffer(pb, pkt->data + HDRSIZE, size);
memcpy(pkt->data, hdr, copyhdrsize);
ret = get_buffer(pb, pkt->data + copyhdrsize, size);
return ret;
case NUV_AUDIO:
if (ctx->a_id < 0) {