Take the target address family in account when determining the family of

[ffmpeg] / libavformat / nuv.c

diff --git a/libavformat/nuv.c b/libavformat/nuv.c
index 7e04222eead873d1df7340b2a209fac656648a67..fe637de6b2e867d0f134cf6405692db836bffdca 100644 (file)
--- a/libavformat/nuv.c
+++ b/libavformat/nuv.c
@@ -24,6 +24,7 @@
 typedef struct {
     int v_id;
     int a_id;
+    int rtjpg_video;
 } NUVContext;
 
 typedef enum {
@@ -35,8 +36,6 @@ typedef enum {
 } frametype_t;
 
 static int nuv_probe(AVProbeData *p) {
-    if (p->buf_size < 12)
-        return 0;
     if (!memcmp(p->buf, "NuppelVideo", 12))
         return AVPROBE_SCORE_MAX;
     if (!memcmp(p->buf, "MythTVVideo", 12))
@@ -86,6 +85,8 @@ static int get_codec_data(ByteIOContext *pb, AVStream *vst,
                     vst->codec->codec_tag = get_le32(pb);
                     vst->codec->codec_id =
                         codec_get_id(codec_bmp_tags, vst->codec->codec_tag);
+                    if (vst->codec->codec_tag == MKTAG('R', 'J', 'P', 'G'))
+                        vst->codec->codec_id = CODEC_ID_NUV;
                 } else
                     url_fskip(pb, 4);
 
@@ -97,6 +98,7 @@ static int get_codec_data(ByteIOContext *pb, AVStream *vst,
                     ast->codec->codec_id =
                         wav_codec_get_id(ast->codec->codec_tag,
                                          ast->codec->bits_per_sample);
+                    ast->need_parsing = AVSTREAM_PARSE_FULL;
                 } else
                     url_fskip(pb, 4 * 4);
 
@@ -117,7 +119,7 @@ static int get_codec_data(ByteIOContext *pb, AVStream *vst,
 }
 
 static int nuv_header(AVFormatContext *s, AVFormatParameters *ap) {
-    NUVContext *ctx = (NUVContext *)s->priv_data;
+    NUVContext *ctx = s->priv_data;
     ByteIOContext *pb = &s->pb;
     char id_string[12], version_string[5];
     double aspect, fps;
@@ -149,7 +151,6 @@ static int nuv_header(AVFormatContext *s, AVFormatParameters *ap) {
         vst = av_new_stream(s, ctx->v_id);
         vst->codec->codec_type = CODEC_TYPE_VIDEO;
         vst->codec->codec_id = CODEC_ID_NUV;
-        vst->codec->codec_tag = MKTAG('R', 'J', 'P', 'G');
         vst->codec->width = width;
         vst->codec->height = height;
         vst->codec->bits_per_sample = 10;
@@ -174,39 +175,45 @@ 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;
     return 0;
 }
 
 #define HDRSIZE 12
 
 static int nuv_packet(AVFormatContext *s, AVPacket *pkt) {
-    NUVContext *ctx = (NUVContext *)s->priv_data;
+    NUVContext *ctx = s->priv_data;
     ByteIOContext *pb = &s->pb;
     uint8_t hdr[HDRSIZE];
     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) {
@@ -226,7 +233,7 @@ static int nuv_packet(AVFormatContext *s, AVPacket *pkt) {
                 break;
         }
     }
-    return AVERROR_IO;
+    return AVERROR(EIO);
 }
 
 AVInputFormat nuv_demuxer = {