Add a context to av_log() calls and modify a function prototype to allow it.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@17382 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavformat/avidec.c

@@ -87,8 +87,9 @@ static void print_tag(const char *str, unsigned int tag, int size)
 }
 #endif
 
-static int get_riff(AVIContext *avi, ByteIOContext *pb)
+static int get_riff(AVFormatContext *s, ByteIOContext *pb)
 {
+    AVIContext *avi = s->priv_data;
     char header[8];
     int i;
 
@@ -105,7 +106,7 @@ static int get_riff(AVIContext *avi, ByteIOContext *pb)
         return -1;
 
     if(header[7] == 0x19)
-        av_log(NULL, AV_LOG_INFO, "This file has been generated by a totally broken muxer.\n");
+        av_log(s, AV_LOG_INFO, "This file has been generated by a totally broken muxer.\n");
 
     return 0;
 }
@@ -247,7 +248,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
 
     avi->stream_index= -1;
 
-    if (get_riff(avi, pb) < 0)
+    if (get_riff(s, avi, pb) < 0)
         return -1;
 
     avi->fsize = url_fsize(pb);
@@ -407,7 +408,7 @@ static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
             get_le32(pb); /* quality */
             ast->sample_size = get_le32(pb); /* sample ssize */
             ast->cum_len *= FFMAX(1, ast->sample_size);
-//            av_log(NULL, AV_LOG_DEBUG, "%d %d %d %d\n", ast->rate, ast->scale, ast->start, ast->sample_size);
+//            av_log(s, AV_LOG_DEBUG, "%d %d %d %d\n", ast->rate, ast->scale, ast->start, ast->sample_size);
 
             switch(tag1) {
             case MKTAG('v', 'i', 'd', 's'):
@@ -659,7 +660,7 @@ static int avi_read_packet(AVFormatContext *s, AVPacket *pkt)
                 ts /= ast->sample_size;
             ts= av_rescale(ts, AV_TIME_BASE * (int64_t)st->time_base.num, st->time_base.den);
 
-//            av_log(NULL, AV_LOG_DEBUG, "%"PRId64" %d/%d %"PRId64"\n", ts, st->time_base.num, st->time_base.den, ast->frame_offset);
+//            av_log(s, AV_LOG_DEBUG, "%"PRId64" %d/%d %"PRId64"\n", ts, st->time_base.num, st->time_base.den, ast->frame_offset);
             if(ts < best_ts && st->nb_index_entries){
                 best_ts= ts;
                 best_st= st;
@@ -680,12 +681,12 @@ static int avi_read_packet(AVFormatContext *s, AVPacket *pkt)
                                       * FFMAX(1, best_ast->sample_size);
         }
 
-//        av_log(NULL, AV_LOG_DEBUG, "%d\n", i);
+//        av_log(s, AV_LOG_DEBUG, "%d\n", i);
         if(i>=0){
             int64_t pos= best_st->index_entries[i].pos;
             pos += best_ast->packet_size - best_ast->remaining;
             url_fseek(s->pb, pos + 8, SEEK_SET);
-//        av_log(NULL, AV_LOG_DEBUG, "pos=%"PRId64"\n", pos);
+//        av_log(s, AV_LOG_DEBUG, "pos=%"PRId64"\n", pos);
 
             assert(best_ast->remaining <= best_ast->packet_size);
 
@@ -734,7 +735,7 @@ resync:
 //                pkt->dts += ast->start;
             if(ast->sample_size)
                 pkt->dts /= ast->sample_size;
-//av_log(NULL, AV_LOG_DEBUG, "dts:%"PRId64" offset:%"PRId64" %d/%d smpl_siz:%d base:%d st:%d size:%d\n", pkt->dts, ast->frame_offset, ast->scale, ast->rate, ast->sample_size, AV_TIME_BASE, avi->stream_index, size);
+//av_log(s, AV_LOG_DEBUG, "dts:%"PRId64" offset:%"PRId64" %d/%d smpl_siz:%d base:%d st:%d size:%d\n", pkt->dts, ast->frame_offset, ast->scale, ast->rate, ast->sample_size, AV_TIME_BASE, avi->stream_index, size);
             pkt->stream_index = avi->stream_index;
 
             if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
@@ -777,7 +778,7 @@ resync:
         size= d[4] + (d[5]<<8) + (d[6]<<16) + (d[7]<<24);
 
         n= get_stream_idx(d+2);
-//av_log(NULL, AV_LOG_DEBUG, "%X %X %X %X %X %X %X %X %"PRId64" %d %d\n", d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7], i, size, n);
+//av_log(s, AV_LOG_DEBUG, "%X %X %X %X %X %X %X %X %"PRId64" %d %d\n", d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7], i, size, n);
         if(i + size > avi->fsize || d[0]<0)
             continue;
 
@@ -787,7 +788,7 @@ resync:
            ||(d[0] == 'J' && d[1] == 'U' && d[2] == 'N' && d[3] == 'K')
            ||(d[0] == 'i' && d[1] == 'd' && d[2] == 'x' && d[3] == '1')){
             url_fskip(pb, size);
-//av_log(NULL, AV_LOG_DEBUG, "SKIP\n");
+//av_log(s, AV_LOG_DEBUG, "SKIP\n");
             goto resync;
         }
 
@@ -846,7 +847,7 @@ resync:
                          (d[2] == 'd' && d[3] == 'c') ||
                          (d[2] == 'w' && d[3] == 'b')*/) {
 
-//av_log(NULL, AV_LOG_DEBUG, "OK\n");
+//av_log(s, AV_LOG_DEBUG, "OK\n");
                 if(d[2]*256+d[3] == ast->prefix)
                     ast->prefix_count++;
                 else{
@@ -895,7 +896,7 @@ static int avi_read_idx1(AVFormatContext *s, int size)
         pos = get_le32(pb);
         len = get_le32(pb);
 #if defined(DEBUG_SEEK)
-        av_log(NULL, AV_LOG_DEBUG, "%d: tag=0x%x flags=0x%x pos=0x%x len=%d/",
+        av_log(s, AV_LOG_DEBUG, "%d: tag=0x%x flags=0x%x pos=0x%x len=%d/",
                i, tag, flags, pos, len);
 #endif
         if(i==0 && pos > avi->movi_list)
@@ -910,7 +911,7 @@ static int avi_read_idx1(AVFormatContext *s, int size)
         ast = st->priv_data;
 
 #if defined(DEBUG_SEEK)
-        av_log(NULL, AV_LOG_DEBUG, "%d cum_len=%"PRId64"\n", len, ast->cum_len);
+        av_log(s, AV_LOG_DEBUG, "%d cum_len=%"PRId64"\n", len, ast->cum_len);
 #endif
         if(last_pos == pos)
             avi->non_interleaved= 1;
@@ -1011,7 +1012,7 @@ static int avi_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp
     pos = st->index_entries[index].pos;
     timestamp = st->index_entries[index].timestamp;
 
-//    av_log(NULL, AV_LOG_DEBUG, "XX %"PRId64" %d %"PRId64"\n", timestamp, index, st->index_entries[index].timestamp);
+//    av_log(s, AV_LOG_DEBUG, "XX %"PRId64" %d %"PRId64"\n", timestamp, index, st->index_entries[index].timestamp);
 
     if (CONFIG_DV_DEMUXER && avi->dv_demux) {
         /* One and only one real stream for DV in AVI, and it has video  */
@@ -1054,7 +1055,7 @@ static int avi_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp
                 index++;
         }
 
-//        av_log(NULL, AV_LOG_DEBUG, "%"PRId64" %d %"PRId64"\n", timestamp, index, st2->index_entries[index].timestamp);
+//        av_log(s, AV_LOG_DEBUG, "%"PRId64" %d %"PRId64"\n", timestamp, index, st2->index_entries[index].timestamp);
         /* extract the current frame number */
         ast2->frame_offset = st2->index_entries[index].timestamp;
         if(ast2->sample_size)