Introduce two new logging functions av_hex_dump_log() and av_pkt_dump_log()

which use av_log() for logging instead of fprintf().

Originally committed as revision 8339 to svn://svn.ffmpeg.org/ffmpeg/trunk

ffmpeg.c

@@ -1878,7 +1878,7 @@ static int av_encode(AVFormatContext **output_files,
         }
 
         if (do_pkt_dump) {
-            av_pkt_dump(stdout, &pkt, do_hex_dump);
+            av_pkt_dump_log(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump);
         }
         /* the following test is needed in case new streams appear
            dynamically in stream : we ignore them */

ffserver.c

@@ -3347,7 +3347,7 @@ static void extract_mpeg4_header(AVFormatContext *infile)
                 if (p[0] == 0x00 && p[1] == 0x00 &&
                     p[2] == 0x01 && p[3] == 0xb6) {
                     size = p - pkt.data;
-                    //                    av_hex_dump(pkt.data, size);
+                    //                    av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
                     st->codec->extradata = av_malloc(size);
                     st->codec->extradata_size = size;
                     memcpy(st->codec->extradata, pkt.data, size);

libavformat/avformat.h

@@ -444,21 +444,51 @@ enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
                             const char *filename, const char *mime_type, enum CodecType type);
 
 /**
- * Print  nice hexa dump of a buffer
- * @param f stream for output
+ * Send a nice hexadecimal dump of a buffer to the specified file stream.
+ *
+ * @param f The file stream pointer where the dump should be sent to.
  * @param buf buffer
  * @param size buffer size
+ *
+ * @see av_hex_dump_log, av_pkt_dump, av_pkt_dump_log
  */
 void av_hex_dump(FILE *f, uint8_t *buf, int size);
 
 /**
- * Print on 'f' a nice dump of a packet
- * @param f stream for output
+ * Send a nice hexadecimal dump of a buffer to the log.
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ * pointer to an AVClass struct.
+ * @param level The importance level of the message, lower values signifying
+ * higher importance.
+ * @param buf buffer
+ * @param size buffer size
+ *
+ * @see av_hex_dump, av_pkt_dump, av_pkt_dump_log
+ */
+void av_hex_dump_log(void *avcl, int level, uint8_t *buf, int size);
+
+/**
+ * Send a nice dump of a packet to the specified file stream.
+ *
+ * @param f The file stream pointer where the dump should be sent to.
  * @param pkt packet to dump
  * @param dump_payload true if the payload must be displayed too
  */
 void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
 
+/**
+ * Send a nice dump of a packet to the log.
+ *
+ * @param avcl A pointer to an arbitrary struct of which the first field is a
+ * pointer to an AVClass struct.
+ * @param level The importance level of the message, lower values signifying
+ * higher importance.
+ * @param pkt packet to dump
+ * @param dump_payload true if the payload must be displayed too
+ */
+void av_pkt_dump_log(void *avcl, int level, AVPacket *pkt, int dump_payload);
+
 void av_register_all(void);
 
 /** codec tag <-> codec id */

libavformat/mpegts.c

@@ -401,7 +401,7 @@ static void pmt_cb(void *opaque, const uint8_t *section, int section_len)
 
 #ifdef DEBUG_SI
     av_log(ts->stream, AV_LOG_DEBUG, "PMT: len %i\n", section_len);
-    av_hex_dump(stdout, (uint8_t *)section, section_len);
+    av_hex_dump_log(ts->stream, AV_LOG_DEBUG, (uint8_t *)section, section_len);
 #endif
     p_end = section + section_len - 4;
     p = section;
@@ -545,7 +545,7 @@ static void pat_cb(void *opaque, const uint8_t *section, int section_len)
 
 #ifdef DEBUG_SI
     av_log(ts->stream, AV_LOG_DEBUG, "PAT:\n");
-    av_hex_dump(stdout, (uint8_t *)section, section_len);
+    av_hex_dump_log(ts->stream, AV_LOG_DEBUG, (uint8_t *)section, section_len);
 #endif
     p_end = section + section_len - 4;
     p = section;
@@ -594,7 +594,7 @@ static void pat_scan_cb(void *opaque, const uint8_t *section, int section_len)
 
 #ifdef DEBUG_SI
     av_log(ts->stream, AV_LOG_DEBUG, "PAT:\n");
-    av_hex_dump(stdout, (uint8_t *)section, section_len);
+    av_hex_dump_log(ts->stream, AV_LOG_DEBUG, (uint8_t *)section, section_len);
 #endif
     p_end = section + section_len - 4;
     p = section;
@@ -655,7 +655,7 @@ static void sdt_cb(void *opaque, const uint8_t *section, int section_len)
 
 #ifdef DEBUG_SI
     av_log(ts->stream, AV_LOG_DEBUG, "SDT:\n");
-    av_hex_dump(stdout, (uint8_t *)section, section_len);
+    av_hex_dump_log(ts->stream, AV_LOG_DEBUG, (uint8_t *)section, section_len);
 #endif
 
     p_end = section + section_len - 4;
@@ -806,7 +806,7 @@ static void mpegts_push_data(void *opaque,
                 /* we got all the PES or section header. We can now
                    decide */
 #if 0
-                av_hex_dump(pes->header, pes->data_index);
+                av_hex_dump_log(pes->stream, AV_LOG_DEBUG, pes->header, pes->data_index);
 #endif
                 if (pes->header[0] == 0x00 && pes->header[1] == 0x00 &&
                     pes->header[2] == 0x01) {

libavformat/utils.c

@@ -2702,56 +2702,80 @@ int av_get_frame_filename(char *buf, int buf_size,
     return -1;
 }
 
-void av_hex_dump(FILE *f, uint8_t *buf, int size)
+static void hex_dump_internal(void *avcl, FILE *f, int level, uint8_t *buf, int size)
 {
     int len, i, j, c;
+#define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
 
     for(i=0;i<size;i+=16) {
         len = size - i;
         if (len > 16)
             len = 16;
-        fprintf(f, "%08x ", i);
+        PRINT("%08x ", i);
         for(j=0;j<16;j++) {
             if (j < len)
-                fprintf(f, " %02x", buf[i+j]);
+                PRINT(" %02x", buf[i+j]);
             else
-                fprintf(f, "   ");
+                PRINT("   ");
         }
-        fprintf(f, " ");
+        PRINT(" ");
         for(j=0;j<len;j++) {
             c = buf[i+j];
             if (c < ' ' || c > '~')
                 c = '.';
-            fprintf(f, "%c", c);
+            PRINT("%c", c);
         }
-        fprintf(f, "\n");
+        PRINT("\n");
     }
+#undef PRINT
+}
+
+void av_hex_dump(FILE *f, uint8_t *buf, int size)
+{
+    hex_dump_internal(NULL, f, 0, buf, size);
+}
+
+void av_hex_dump_log(void *avcl, int level, uint8_t *buf, int size)
+{
+    hex_dump_internal(avcl, NULL, level, buf, size);
 }
 
  //FIXME needs to know the time_base
-void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload)
+static void pkt_dump_internal(void *avcl, FILE *f, int level, AVPacket *pkt, int dump_payload)
 {
-    fprintf(f, "stream #%d:\n", pkt->stream_index);
-    fprintf(f, "  keyframe=%d\n", ((pkt->flags & PKT_FLAG_KEY) != 0));
-    fprintf(f, "  duration=%0.3f\n", (double)pkt->duration / AV_TIME_BASE);
+#define PRINT(...) do { if (!f) av_log(avcl, level, __VA_ARGS__); else fprintf(f, __VA_ARGS__); } while(0)
+    PRINT("stream #%d:\n", pkt->stream_index);
+    PRINT("  keyframe=%d\n", ((pkt->flags & PKT_FLAG_KEY) != 0));
+    PRINT("  duration=%0.3f\n", (double)pkt->duration / AV_TIME_BASE);
     /* DTS is _always_ valid after av_read_frame() */
-    fprintf(f, "  dts=");
+    PRINT("  dts=");
     if (pkt->dts == AV_NOPTS_VALUE)
-        fprintf(f, "N/A");
+        PRINT("N/A");
     else
-        fprintf(f, "%0.3f", (double)pkt->dts / AV_TIME_BASE);
+        PRINT("%0.3f", (double)pkt->dts / AV_TIME_BASE);
     /* PTS may be not known if B frames are present */
-    fprintf(f, "  pts=");
+    PRINT("  pts=");
     if (pkt->pts == AV_NOPTS_VALUE)
-        fprintf(f, "N/A");
+        PRINT("N/A");
     else
-        fprintf(f, "%0.3f", (double)pkt->pts / AV_TIME_BASE);
-    fprintf(f, "\n");
-    fprintf(f, "  size=%d\n", pkt->size);
+        PRINT("%0.3f", (double)pkt->pts / AV_TIME_BASE);
+    PRINT("\n");
+    PRINT("  size=%d\n", pkt->size);
+#undef PRINT
     if (dump_payload)
         av_hex_dump(f, pkt->data, pkt->size);
 }
 
+void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload)
+{
+    pkt_dump_internal(NULL, f, 0, pkt, dump_payload);
+}
+
+void av_pkt_dump_log(void *avcl, int level, AVPacket *pkt, int dump_payload)
+{
+    pkt_dump_internal(avcl, NULL, level, pkt, dump_payload);
+}
+
 void url_split(char *proto, int proto_size,
                char *authorization, int authorization_size,
                char *hostname, int hostname_size,