Merge remote-tracking branch 'qatar/master'

* qatar/master:
  Revert "avconv: use stream copy by default when possible."
  avconv: print stream copy information.
  avconv: use stream copy by default when possible.
  matroskaenc: vertical alignment.
  matroskaenc: implement query_codec()
  lavf: add avformat_query_codec().
  lavc: add avcodec_get_type() for mapping codec_id -> type.
  flvenc: use int64_t to store offsets
  avconv: don't segfault on 0 input files.
  Do not write ID3v1 tags by default
  mpegts: log into an AVFormatContext rather than MpegTSContext.

Conflicts:
	doc/APIchanges
	libavcodec/version.h
	libavformat/avformat.h
	libavformat/mp3enc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

avconv.c

@@ -2280,6 +2280,8 @@ static int transcode(AVFormatContext **output_files,
                 fprintf(stderr, " [sync #%d.%d]",
                         ost->sync_ist->file_index,
                         ost->sync_ist->st->index);
+            if (ost->st->stream_copy)
+                fprintf(stderr, " (copy)");
             fprintf(stderr, "\n");
         }
     }
@@ -3804,7 +3806,7 @@ static int opt_output_file(const char *opt, const char *filename)
     }
 
     /* copy global metadata by default */
-    if (metadata_global_autocopy)
+    if (metadata_global_autocopy && nb_input_files)
         av_dict_copy(&oc->metadata, input_files[0].ctx->metadata,
                      AV_DICT_DONT_OVERWRITE);
     if (metadata_streams_autocopy)

doc/APIchanges

@@ -16,6 +16,12 @@ API changes, most recent first:
 2011-08-14 - xxxxxx - lavu 52.12.0
   Add av_fifo_peek2(), deprecate av_fifo_peek().
 
+2011-08-xx - xxxxxxx - lavf 53.4.0
+  Add avformat_query_codec().
+
+2011-08-xx - xxxxxxx - lavc 53.8.0
+  Add avcodec_get_type().
+
 2011-08-06 - 2f63440 - lavf 53.4.0
   Add error_recognition to AVFormatContext.
 

libavcodec/avcodec.h

@@ -212,6 +212,7 @@ enum CodecID {
     CODEC_ID_G2M,
 
     /* various PCM "codecs" */
+    CODEC_ID_FIRST_AUDIO = 0x10000,     ///< A dummy id pointing at the start of audio codecs
     CODEC_ID_PCM_S16LE= 0x10000,
     CODEC_ID_PCM_S16BE,
     CODEC_ID_PCM_U16LE,
@@ -343,6 +344,7 @@ enum CodecID {
     CODEC_ID_CELT,
 
     /* subtitle codecs */
+    CODEC_ID_FIRST_SUBTITLE = 0x17000,          ///< A dummy ID pointing at the start of subtitle codecs.
     CODEC_ID_DVD_SUBTITLE= 0x17000,
     CODEC_ID_DVB_SUBTITLE,
     CODEC_ID_TEXT,  ///< raw UTF-8 text
@@ -355,6 +357,7 @@ enum CodecID {
     CODEC_ID_MICRODVD,
 
     /* other specific kind of codecs (generally used for attachments) */
+    CODEC_ID_FIRST_UNKNOWN = 0x18000,           ///< A dummy ID pointing at the start of various fake codecs.
     CODEC_ID_TTF= 0x18000,
 
     CODEC_ID_PROBE= 0x19000, ///< codec_id is not known (like CODEC_ID_NONE) but lavf should attempt to identify it
@@ -4342,4 +4345,9 @@ enum AVLockOp {
  */
 int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op));
 
+/**
+ * Get the type of the given codec.
+ */
+enum AVMediaType avcodec_get_type(enum CodecID codec_id);
+
 #endif /* AVCODEC_AVCODEC_H */

libavcodec/utils.c

@@ -1380,3 +1380,17 @@ int avcodec_thread_init(AVCodecContext *s, int thread_count)
     return ff_thread_init(s);
 }
 #endif
+
+enum AVMediaType avcodec_get_type(enum CodecID codec_id)
+{
+    if (codec_id <= CODEC_ID_NONE)
+        return AVMEDIA_TYPE_UNKNOWN;
+    else if (codec_id < CODEC_ID_FIRST_AUDIO)
+        return AVMEDIA_TYPE_VIDEO;
+    else if (codec_id < CODEC_ID_FIRST_SUBTITLE)
+        return AVMEDIA_TYPE_AUDIO;
+    else if (codec_id < CODEC_ID_FIRST_UNKNOWN)
+        return AVMEDIA_TYPE_SUBTITLE;
+
+    return AVMEDIA_TYPE_UNKNOWN;
+}

libavcodec/version.h

@@ -21,7 +21,7 @@
 #define AVCODEC_VERSION_H
 
 #define LIBAVCODEC_VERSION_MAJOR 53
-#define LIBAVCODEC_VERSION_MINOR 10
+#define LIBAVCODEC_VERSION_MINOR 11
 #define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \

libavformat/avformat.h

@@ -324,6 +324,14 @@ typedef struct AVOutputFormat {
 
     const AVClass *priv_class; ///< AVClass for the private context
 
+    /**
+     * Test if the given codec can be stored in this container.
+     *
+     * @return 1 if the codec is supported, 0 if it is not.
+     *         A negative number if unknown.
+     */
+    int (*query_codec)(enum CodecID id, int std_compliance);
+
     void (*get_output_timestamp)(struct AVFormatContext *s, int stream,
                                  int64_t *dts, int64_t *wall);
 
@@ -1690,4 +1698,14 @@ attribute_deprecated int avf_sdp_create(AVFormatContext *ac[], int n_files, char
  */
 int av_match_ext(const char *filename, const char *extensions);
 
+/**
+ * Test if the given container can store a codec.
+ *
+ * @param std_compliance standards compliance level, one of FF_COMPLIANCE_*
+ *
+ * @return 1 if codec with ID codec_id can be stored in ofmt, 0 if it cannot.
+ *         A negative number if this information is not available.
+ */
+int avformat_query_codec(AVOutputFormat *ofmt, enum CodecID codec_id, int std_compliance);
+
 #endif /* AVFORMAT_AVFORMAT_H */

libavformat/flvenc.c

@@ -180,7 +180,7 @@ static int flv_write_header(AVFormatContext *s)
     AVCodecContext *audio_enc = NULL, *video_enc = NULL;
     int i;
     double framerate = 0.0;
-    int metadata_size_pos, data_size;
+    int64_t metadata_size_pos, data_size;
     AVDictionaryEntry *tag = NULL;
 
     for(i=0; i<s->nb_streams; i++){

libavformat/matroskaenc.c

@@ -1198,6 +1198,22 @@ static int mkv_write_trailer(AVFormatContext *s)
     return 0;
 }
 
+static int mkv_query_codec(enum CodecID codec_id, int std_compliance)
+{
+    int i;
+    for (i = 0; ff_mkv_codec_tags[i].id != CODEC_ID_NONE; i++)
+        if (ff_mkv_codec_tags[i].id == codec_id)
+            return 1;
+
+    if (std_compliance < FF_COMPLIANCE_NORMAL) {                // mkv theoretically supports any
+        enum AVMediaType type = avcodec_get_type(codec_id);     // video/audio through VFW/ACM
+        if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO)
+            return 1;
+    }
+
+    return 0;
+}
+
 #if CONFIG_MATROSKA_MUXER
 AVOutputFormat ff_matroska_muxer = {
     .name              = "matroska",
@@ -1210,9 +1226,10 @@ AVOutputFormat ff_matroska_muxer = {
     .write_header      = mkv_write_header,
     .write_packet      = mkv_write_packet,
     .write_trailer     = mkv_write_trailer,
-    .flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS,
-    .codec_tag = (const AVCodecTag* const []){ff_codec_bmp_tags, ff_codec_wav_tags, 0},
-    .subtitle_codec = CODEC_ID_SSA,
+    .flags             = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS,
+    .codec_tag         = (const AVCodecTag* const []){ff_codec_bmp_tags, ff_codec_wav_tags, 0},
+    .subtitle_codec    = CODEC_ID_SSA,
+    .query_codec       = mkv_query_codec,
 };
 #endif
 

libavformat/mp3enc.c

@@ -141,6 +141,7 @@ static int id3v2_put_ttag(AVFormatContext *s, const char *str1, const char *str2
 typedef struct MP3Context {
     const AVClass *class;
     int id3v2_version;
+    int write_id3v1;
     int64_t frames_offset;
     int32_t frames;
     int32_t size;
@@ -156,7 +157,7 @@ static int mp2_write_trailer(struct AVFormatContext *s)
     MP3Context *mp3 = s->priv_data;
 
     /* write the id3v1 tag */
-    if (id3v1_create_tag(s, buf) > 0) {
+    if (mp3 && mp3->write_id3v1 && id3v1_create_tag(s, buf) > 0) {
         avio_write(s->pb, buf, ID3v1_TAG_SIZE);
     }
 
@@ -190,6 +191,8 @@ AVOutputFormat ff_mp2_muxer = {
 static const AVOption options[] = {
     { "id3v2_version", "Select ID3v2 version to write. Currently 3 and 4 are supported.",
       offsetof(MP3Context, id3v2_version), FF_OPT_TYPE_INT, {.dbl = 4}, 3, 4, AV_OPT_FLAG_ENCODING_PARAM},
+    { "write_id3v1", "Enable ID3v1 writing. ID3v1 tags are written in UTF-8 which may not be supported by most software.",
+      offsetof(MP3Context, write_id3v1), FF_OPT_TYPE_INT, {.dbl = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
     { NULL },
 };
 

libavformat/utils.c

@@ -4035,3 +4035,17 @@ int64_t ff_iso8601_to_unix_time(const char *datestr)
     return 0;
 #endif
 }
+
+int avformat_query_codec(AVOutputFormat *ofmt, enum CodecID codec_id, int std_compliance)
+{
+    if (ofmt) {
+        if (ofmt->query_codec)
+            return ofmt->query_codec(codec_id, std_compliance);
+        else if (ofmt->codec_tag)
+            return !!av_codec_get_tag(ofmt->codec_tag, codec_id);
+        else if (codec_id == ofmt->video_codec || codec_id == ofmt->audio_codec ||
+                 codec_id == ofmt->subtitle_codec)
+                return 1;
+    }
+    return AVERROR_PATCHWELCOME;
+}