GStreamer-devel

Audio Metadata

classic Classic list List threaded Threaded
♦
♦
 11 messages Options
sree
Reply | Threaded
Open this post in threaded view
♦
♦
|

Audio Metadata

sree
Hi,

I am trying to extract audio metadata like streamurl,streamtitle,artist,genre,album.However I am not able to extract the metadata using GstTagList. Below is the snippet of the code. Does anyone suggest what are the additions to be done in order to extract the metadata?

Only the following data has been extracted.
             layer: 3
             mode: joint
             emphasis: none
             audio codec: MPEG-1 layer 3
             bitrate: 128000

Pipeline is as follows:

[code]
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mad !  alsasink", NULL);
[/code]

Audio data fed to the appsrc element

[code]
buf =( GstBuffer *) gst_app_buffer_new (data, READBUF, g_free, data);
g_signal_emit_by_name (GST_APP_SRC (app->appsrc), "push-buffer", buf, &ret);
[/code]

Bus message

[code]
case GST_MESSAGE_TAG:
{
    GstTagList *tags = NULL;
        char *artist;
        gst_message_parse_tag (message, &tags);
        g_print ("Got tags from element %s:\n", GST_OBJECT_NAME (message->src));
        if (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &artist))
        {
           printf("got artist: %s\n",artist);
        }
        else
        {
          printf("no artist!! \n");
        }
        gst_tag_list_foreach (tags, print_tag, NULL);
        g_print ("\n");
        gst_tag_list_free (tags);
        break;
[/code]

print_tag function code
[code]
static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
{
  gint i, count;
  count = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < count; i++) {
    gchar *str;
    if (gst_tag_get_type (tag) == G_TYPE_STRING) {
      if (!gst_tag_list_get_string_index (list, tag, i, &str))
        g_assert_not_reached ();
 
    } else {
      str =
          g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
    }
    if (i == 0) {
      g_print ("  %15s: %s\n", gst_tag_get_nick (tag), str);
    } else {
      g_print ("                 : %s\n", str);
    }
    g_free (str);
  }
}
[/code]

Thanks and Regards,
Sree Gowri
_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
Stefan Sauer
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Audio Metadata

Stefan Sauer
On 04/12/2012 06:23 AM, Sree Gowri wrote:
Hi,

I am trying to extract audio metadata like streamurl,streamtitle,artist,genre,album.However I am not able to extract the metadata using GstTagList. Below is the snippet of the code. Does anyone suggest what are the additions to be done in order to extract the metadata?

Only the following data has been extracted.
             layer: 3
             mode: joint
             emphasis: none
             audio codec: MPEG-1 layer 3
             bitrate: 128000

Pipeline is as follows:

[code]
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mad !  alsasink", NULL);
[/code]
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"
or even better
"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"

Stefan


Audio data fed to the appsrc element

[code]
buf =( GstBuffer *) gst_app_buffer_new (data, READBUF, g_free, data);
g_signal_emit_by_name (GST_APP_SRC (app->appsrc), "push-buffer", buf, &ret);
[/code]

Bus message

[code]
case GST_MESSAGE_TAG:
{
    GstTagList *tags = NULL;
        char *artist;
        gst_message_parse_tag (message, &tags);
        g_print ("Got tags from element %s:\n", GST_OBJECT_NAME (message->src));
        if (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &artist))
        {
           printf("got artist: %s\n",artist);
        }
        else
        {
          printf("no artist!! \n");
        }
        gst_tag_list_foreach (tags, print_tag, NULL);
        g_print ("\n");
        gst_tag_list_free (tags);
        break;
[/code]

print_tag function code
[code]
static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
{
  gint i, count;
  count = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < count; i++) {
    gchar *str;
    if (gst_tag_get_type (tag) == G_TYPE_STRING) {
      if (!gst_tag_list_get_string_index (list, tag, i, &str))
        g_assert_not_reached ();
 
    } else {
      str =
          g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
    }
    if (i == 0) {
      g_print ("  %15s: %s\n", gst_tag_get_nick (tag), str);
    } else {
      g_print ("                 : %s\n", str);
    }
    g_free (str);
  }
}
[/code]

Thanks and Regards,
Sree Gowri
 

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
sree
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Audio Metadata

sree


On Mon, Apr 16, 2012 at 12:53 AM, Stefan Sauer <[hidden email]> wrote:
On 04/12/2012 06:23 AM, Sree Gowri wrote:
Hi,

I am trying to extract audio metadata like streamurl,streamtitle,artist,genre,album.However I am not able to extract the metadata using GstTagList. Below is the snippet of the code. Does anyone suggest what are the additions to be done in order to extract the metadata?

Only the following data has been extracted.
             layer: 3
             mode: joint
             emphasis: none
             audio codec: MPEG-1 layer 3
             bitrate: 128000

Pipeline is as follows:

[code]
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mad !  alsasink", NULL);
[/code]
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"
or even better
"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"

Stefan


Audio data fed to the appsrc element

[code]
buf =( GstBuffer *) gst_app_buffer_new (data, READBUF, g_free, data);
g_signal_emit_by_name (GST_APP_SRC (app->appsrc), "push-buffer", buf, &ret);
[/code]

Bus message

[code]
case GST_MESSAGE_TAG:
{
    GstTagList *tags = NULL;
        char *artist;
        gst_message_parse_tag (message, &tags);
        g_print ("Got tags from element %s:\n", GST_OBJECT_NAME (message->src));
        if (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &artist))
        {
           printf("got artist: %s\n",artist);
        }
        else
        {
          printf("no artist!! \n");
        }
        gst_tag_list_foreach (tags, print_tag, NULL);
        g_print ("\n");
        gst_tag_list_free (tags);
        break;
[/code]

print_tag function code
[code]
static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
{
  gint i, count;
  count = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < count; i++) {
    gchar *str;
    if (gst_tag_get_type (tag) == G_TYPE_STRING) {
      if (!gst_tag_list_get_string_index (list, tag, i, &str))
        g_assert_not_reached ();
 
    } else {
      str =
          g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
    }
    if (i == 0) {
      g_print ("  %15s: %s\n", gst_tag_get_nick (tag), str);
    } else {
      g_print ("                 : %s\n", str);
    }
    g_free (str);
  }
}
[/code]

Thanks and Regards,
Sree Gowri
      Hi stephan,

      First would like to thank you for the input you provided.
   
      I tried both the pipelines that you have mentioned,however meta data has not been    extracted.
 
     Kindly request you to let me know if there are any other changes that needs to be done.
 
Regards,
Sree Gowri
 

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
Stefan Sauer
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Audio Metadata

Stefan Sauer
On 04/24/2012 11:18 AM, Sree Gowri wrote:


On Mon, Apr 16, 2012 at 12:53 AM, Stefan Sauer <[hidden email]> wrote:
On 04/12/2012 06:23 AM, Sree Gowri wrote:
Hi,

I am trying to extract audio metadata like streamurl,streamtitle,artist,genre,album.However I am not able to extract the metadata using GstTagList. Below is the snippet of the code. Does anyone suggest what are the additions to be done in order to extract the metadata?

Only the following data has been extracted.
             layer: 3
             mode: joint
             emphasis: none
             audio codec: MPEG-1 layer 3
             bitrate: 128000

Pipeline is as follows:

[code]
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mad !  alsasink", NULL);
[/code]
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"
or even better
"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"

Stefan


Audio data fed to the appsrc element

[code]
buf =( GstBuffer *) gst_app_buffer_new (data, READBUF, g_free, data);
g_signal_emit_by_name (GST_APP_SRC (app->appsrc), "push-buffer", buf, &ret);
[/code]

Bus message

[code]
case GST_MESSAGE_TAG:
{
    GstTagList *tags = NULL;
        char *artist;
        gst_message_parse_tag (message, &tags);
        g_print ("Got tags from element %s:\n", GST_OBJECT_NAME (message->src));
        if (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &artist))
        {
           printf("got artist: %s\n",artist);
        }
        else
        {
          printf("no artist!! \n");
        }
        gst_tag_list_foreach (tags, print_tag, NULL);
        g_print ("\n");
        gst_tag_list_free (tags);
        break;
[/code]

print_tag function code
[code]
static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
{
  gint i, count;
  count = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < count; i++) {
    gchar *str;
    if (gst_tag_get_type (tag) == G_TYPE_STRING) {
      if (!gst_tag_list_get_string_index (list, tag, i, &str))
        g_assert_not_reached ();
 
    } else {
      str =
          g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
    }
    if (i == 0) {
      g_print ("  %15s: %s\n", gst_tag_get_nick (tag), str);
    } else {
      g_print ("                 : %s\n", str);
    }
    g_free (str);
  }
}
[/code]

Thanks and Regards,
Sree Gowri
      Hi stephan,

      First would like to thank you for the input you provided.
   
      I tried both the pipelines that you have mentioned,however meta data has not been    extracted.
 
     Kindly request you to let me know if there are any other changes that needs to be done.

Are you sure the stream you are looking at is tagged with such metadata? Try gst-launch-0.10 -t playbin2 uri=...

Stefan

 
Regards,
Sree Gowri
 

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
sree
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Audio Metadata

sree


On Tue, Apr 24, 2012 at 5:46 PM, Stefan Sauer <[hidden email]> wrote:
On 04/24/2012 11:18 AM, Sree Gowri wrote:


On Mon, Apr 16, 2012 at 12:53 AM, Stefan Sauer <[hidden email]> wrote:
On 04/12/2012 06:23 AM, Sree Gowri wrote:
Hi,

I am trying to extract audio metadata like streamurl,streamtitle,artist,genre,album.However I am not able to extract the metadata using GstTagList. Below is the snippet of the code. Does anyone suggest what are the additions to be done in order to extract the metadata?

Only the following data has been extracted.
             layer: 3
             mode: joint
             emphasis: none
             audio codec: MPEG-1 layer 3
             bitrate: 128000

Pipeline is as follows:

[code]
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mad !  alsasink", NULL);
[/code]
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"
or even better
"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"

Stefan


Audio data fed to the appsrc element

[code]
buf =( GstBuffer *) gst_app_buffer_new (data, READBUF, g_free, data);
g_signal_emit_by_name (GST_APP_SRC (app->appsrc), "push-buffer", buf, &ret);
[/code]

Bus message

[code]
case GST_MESSAGE_TAG:
{
    GstTagList *tags = NULL;
        char *artist;
        gst_message_parse_tag (message, &tags);
        g_print ("Got tags from element %s:\n", GST_OBJECT_NAME (message->src));
        if (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &artist))
        {
           printf("got artist: %s\n",artist);
        }
        else
        {
          printf("no artist!! \n");
        }
        gst_tag_list_foreach (tags, print_tag, NULL);
        g_print ("\n");
        gst_tag_list_free (tags);
        break;
[/code]

print_tag function code
[code]
static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
{
  gint i, count;
  count = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < count; i++) {
    gchar *str;
    if (gst_tag_get_type (tag) == G_TYPE_STRING) {
      if (!gst_tag_list_get_string_index (list, tag, i, &str))
        g_assert_not_reached ();
 
    } else {
      str =
          g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
    }
    if (i == 0) {
      g_print ("  %15s: %s\n", gst_tag_get_nick (tag), str);
    } else {
      g_print ("                 : %s\n", str);
    }
    g_free (str);
  }
}
[/code]

Thanks and Regards,
Sree Gowri
      Hi stephan,

      First would like to thank you for the input you provided.
   
      I tried both the pipelines that you have mentioned,however meta data has not been    extracted.
 
     Kindly request you to let me know if there are any other changes that needs to be done.

Are you sure the stream you are looking at is tagged with such metadata? Try gst-launch-0.10 -t playbin2 uri=...

Stefan

   Yes the stream contains the metadata like streamTitle, streamUrl. In order to check does the stream really has metadata, appsrc buffer is written to a file and checked using hexedit and I can find the metadata.Sure will try your suggestion tomorrow and update you. Thankyou.


 
Regards,
Sree Gowri
 

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
sree
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Audio Metadata

sree


On Tue, Apr 24, 2012 at 9:42 PM, Sree Gowri <[hidden email]> wrote:


On Tue, Apr 24, 2012 at 5:46 PM, Stefan Sauer <[hidden email]> wrote:
On 04/24/2012 11:18 AM, Sree Gowri wrote:


On Mon, Apr 16, 2012 at 12:53 AM, Stefan Sauer <[hidden email]> wrote:
On 04/12/2012 06:23 AM, Sree Gowri wrote:
Hi,

I am trying to extract audio metadata like streamurl,streamtitle,artist,genre,album.However I am not able to extract the metadata using GstTagList. Below is the snippet of the code. Does anyone suggest what are the additions to be done in order to extract the metadata?

Only the following data has been extracted.
             layer: 3
             mode: joint
             emphasis: none
             audio codec: MPEG-1 layer 3
             bitrate: 128000

Pipeline is as follows:

[code]
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mad !  alsasink", NULL);
[/code]
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"
or even better
"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"

Stefan


Audio data fed to the appsrc element

[code]
buf =( GstBuffer *) gst_app_buffer_new (data, READBUF, g_free, data);
g_signal_emit_by_name (GST_APP_SRC (app->appsrc), "push-buffer", buf, &ret);
[/code]

Bus message

[code]
case GST_MESSAGE_TAG:
{
    GstTagList *tags = NULL;
        char *artist;
        gst_message_parse_tag (message, &tags);
        g_print ("Got tags from element %s:\n", GST_OBJECT_NAME (message->src));
        if (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &artist))
        {
           printf("got artist: %s\n",artist);
        }
        else
        {
          printf("no artist!! \n");
        }
        gst_tag_list_foreach (tags, print_tag, NULL);
        g_print ("\n");
        gst_tag_list_free (tags);
        break;
[/code]

print_tag function code
[code]
static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
{
  gint i, count;
  count = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < count; i++) {
    gchar *str;
    if (gst_tag_get_type (tag) == G_TYPE_STRING) {
      if (!gst_tag_list_get_string_index (list, tag, i, &str))
        g_assert_not_reached ();
 
    } else {
      str =
          g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
    }
    if (i == 0) {
      g_print ("  %15s: %s\n", gst_tag_get_nick (tag), str);
    } else {
      g_print ("                 : %s\n", str);
    }
    g_free (str);
  }
}
[/code]

Thanks and Regards,
Sree Gowri
      Hi stephan,

      First would like to thank you for the input you provided.
   
      I tried both the pipelines that you have mentioned,however meta data has not been    extracted.
 
     Kindly request you to let me know if there are any other changes that needs to be done.

Are you sure the stream you are looking at is tagged with such metadata? Try gst-launch-0.10 -t playbin2 uri=...

Stefan

   Yes the stream contains the metadata like streamTitle, streamUrl. In order to check does the stream really has metadata, appsrc buffer is written to a file and checked using hexedit and I can find the metadata.Sure will try your suggestion tomorrow and update you. Thankyou.
 
Regards,
Sree Gowri

     Hi Stephan,

      gst-launch-0.10 -t playbin2 uri=.... is also not extracting the metadata.

      Actually I am streaming the shoutcast stream.Audio stream data is feed to the appsrc element.
    Following is the header that is received

ICY 200 OK^M
icy-notice1:<BR>This stream requires <a href="http://www.winamp.com/">Winamp</a><BR>^M
icy-notice2:SHOUTcast Distributed Network Audio Server/win32 v1.9.8<BR>^M
icy-name:Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop^M
icy-genre:Desi, Hindi , Bollywood, Fiji, Indian^M
icy-url:http://www.radioafsana.com^M
content-type:audio/mpeg^M
icy-pub:1^M
icy-metaint:8192^M
icy-br:128^M

Metadata is available as "StreamTitle='Aditi Singh Sharma - Luv Ka The End - LUV KA THE END."
However I am not able to extract the same.

Also not able to extract the metadata for the downloaded mp3 file using the following pipelines. However the above command that you mentioned will extract the metadata for the downloaded mp3 file

appsrc name=mysource ! audio/mpeg  ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink

Your input would be of great help.

Regards,
Sree Gowri.
 

 

 

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel




_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
sree
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Audio Metadata

sree


On Wed, Apr 25, 2012 at 12:19 PM, Sree Gowri <[hidden email]> wrote:


On Tue, Apr 24, 2012 at 9:42 PM, Sree Gowri <[hidden email]> wrote:


On Tue, Apr 24, 2012 at 5:46 PM, Stefan Sauer <[hidden email]> wrote:
On 04/24/2012 11:18 AM, Sree Gowri wrote:


On Mon, Apr 16, 2012 at 12:53 AM, Stefan Sauer <[hidden email]> wrote:
On 04/12/2012 06:23 AM, Sree Gowri wrote:
Hi,

I am trying to extract audio metadata like streamurl,streamtitle,artist,genre,album.However I am not able to extract the metadata using GstTagList. Below is the snippet of the code. Does anyone suggest what are the additions to be done in order to extract the metadata?

Only the following data has been extracted.
             layer: 3
             mode: joint
             emphasis: none
             audio codec: MPEG-1 layer 3
             bitrate: 128000

Pipeline is as follows:

[code]
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mad !  alsasink", NULL);
[/code]
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"
or even better
"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"

Stefan


Audio data fed to the appsrc element

[code]
buf =( GstBuffer *) gst_app_buffer_new (data, READBUF, g_free, data);
g_signal_emit_by_name (GST_APP_SRC (app->appsrc), "push-buffer", buf, &ret);
[/code]

Bus message

[code]
case GST_MESSAGE_TAG:
{
    GstTagList *tags = NULL;
        char *artist;
        gst_message_parse_tag (message, &tags);
        g_print ("Got tags from element %s:\n", GST_OBJECT_NAME (message->src));
        if (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &artist))
        {
           printf("got artist: %s\n",artist);
        }
        else
        {
          printf("no artist!! \n");
        }
        gst_tag_list_foreach (tags, print_tag, NULL);
        g_print ("\n");
        gst_tag_list_free (tags);
        break;
[/code]

print_tag function code
[code]
static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
{
  gint i, count;
  count = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < count; i++) {
    gchar *str;
    if (gst_tag_get_type (tag) == G_TYPE_STRING) {
      if (!gst_tag_list_get_string_index (list, tag, i, &str))
        g_assert_not_reached ();
 
    } else {
      str =
          g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
    }
    if (i == 0) {
      g_print ("  %15s: %s\n", gst_tag_get_nick (tag), str);
    } else {
      g_print ("                 : %s\n", str);
    }
    g_free (str);
  }
}
[/code]

Thanks and Regards,
Sree Gowri
      Hi stephan,

      First would like to thank you for the input you provided.
   
      I tried both the pipelines that you have mentioned,however meta data has not been    extracted.
 
     Kindly request you to let me know if there are any other changes that needs to be done.

Are you sure the stream you are looking at is tagged with such metadata? Try gst-launch-0.10 -t playbin2 uri=...

Stefan

   Yes the stream contains the metadata like streamTitle, streamUrl. In order to check does the stream really has metadata, appsrc buffer is written to a file and checked using hexedit and I can find the metadata.Sure will try your suggestion tomorrow and update you. Thankyou.
 
Regards,
Sree Gowri

     Hi Stephan,

      gst-launch-0.10 -t playbin2 uri=.... is also not extracting the metadata.

      Actually I am streaming the shoutcast stream.Audio stream data is feed to the appsrc element.
    Following is the header that is received

ICY 200 OK^M
icy-notice1:<BR>This stream requires <a href="http://www.winamp.com/">Winamp</a><BR>^M
icy-notice2:SHOUTcast Distributed Network Audio Server/win32 v1.9.8<BR>^M
icy-name:Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop^M
icy-genre:Desi, Hindi , Bollywood, Fiji, Indian^M
icy-url:http://www.radioafsana.com^M
content-type:audio/mpeg^M
icy-pub:1^M
icy-metaint:8192^M
icy-br:128^M

Metadata is available as "StreamTitle='Aditi Singh Sharma - Luv Ka The End - LUV KA THE END."
However I am not able to extract the same.

Also not able to extract the metadata for the downloaded mp3 file using the following pipelines. However the above command that you mentioned will extract the metadata for the downloaded mp3 file


appsrc name=mysource ! audio/mpeg  ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink

Your input would be of great help.

Regards,
Sree Gowri.
 

 

 

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


Hi Stephan,

I am still stuck with metadata parsing as mentioned earlier. Could you please help me.

Thanks and Regards,
Sree Gowri


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
Stefan Sauer
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Audio Metadata

Stefan Sauer
On 04/26/2012 07:53 PM, Sree Gowri wrote:


On Wed, Apr 25, 2012 at 12:19 PM, Sree Gowri <[hidden email]> wrote:


On Tue, Apr 24, 2012 at 9:42 PM, Sree Gowri <[hidden email]> wrote:


On Tue, Apr 24, 2012 at 5:46 PM, Stefan Sauer <[hidden email]> wrote:
On 04/24/2012 11:18 AM, Sree Gowri wrote:


On Mon, Apr 16, 2012 at 12:53 AM, Stefan Sauer <[hidden email]> wrote:
On 04/12/2012 06:23 AM, Sree Gowri wrote:
Hi,

I am trying to extract audio metadata like streamurl,streamtitle,artist,genre,album.However I am not able to extract the metadata using GstTagList. Below is the snippet of the code. Does anyone suggest what are the additions to be done in order to extract the metadata?

Only the following data has been extracted.
             layer: 3
             mode: joint
             emphasis: none
             audio codec: MPEG-1 layer 3
             bitrate: 128000

Pipeline is as follows:

[code]
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mad !  alsasink", NULL);
[/code]
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"
or even better
"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"

Stefan


Audio data fed to the appsrc element

[code]
buf =( GstBuffer *) gst_app_buffer_new (data, READBUF, g_free, data);
g_signal_emit_by_name (GST_APP_SRC (app->appsrc), "push-buffer", buf, &ret);
[/code]

Bus message

[code]
case GST_MESSAGE_TAG:
{
    GstTagList *tags = NULL;
        char *artist;
        gst_message_parse_tag (message, &tags);
        g_print ("Got tags from element %s:\n", GST_OBJECT_NAME (message->src));
        if (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &artist))
        {
           printf("got artist: %s\n",artist);
        }
        else
        {
          printf("no artist!! \n");
        }
        gst_tag_list_foreach (tags, print_tag, NULL);
        g_print ("\n");
        gst_tag_list_free (tags);
        break;
[/code]

print_tag function code
[code]
static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
{
  gint i, count;
  count = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < count; i++) {
    gchar *str;
    if (gst_tag_get_type (tag) == G_TYPE_STRING) {
      if (!gst_tag_list_get_string_index (list, tag, i, &str))
        g_assert_not_reached ();
 
    } else {
      str =
          g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
    }
    if (i == 0) {
      g_print ("  %15s: %s\n", gst_tag_get_nick (tag), str);
    } else {
      g_print ("                 : %s\n", str);
    }
    g_free (str);
  }
}
[/code]

Thanks and Regards,
Sree Gowri
      Hi stephan,

      First would like to thank you for the input you provided.
   
      I tried both the pipelines that you have mentioned,however meta data has not been    extracted.
 
     Kindly request you to let me know if there are any other changes that needs to be done.

Are you sure the stream you are looking at is tagged with such metadata? Try gst-launch-0.10 -t playbin2 uri=...

Stefan

   Yes the stream contains the metadata like streamTitle, streamUrl. In order to check does the stream really has metadata, appsrc buffer is written to a file and checked using hexedit and I can find the metadata.Sure will try your suggestion tomorrow and update you. Thankyou.
 
Regards,
Sree Gowri

     Hi Stephan,

      gst-launch-0.10 -t playbin2 uri=.... is also not extracting the metadata.

      Actually I am streaming the shoutcast stream.Audio stream data is feed to the appsrc element.
    Following is the header that is received

ICY 200 OK^M
icy-notice1:<BR>This stream requires <a href="http://www.winamp.com/">Winamp</a><BR>^M
icy-notice2:SHOUTcast Distributed Network Audio Server/win32 v1.9.8<BR>^M
icy-name:Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop^M
icy-genre:Desi, Hindi , Bollywood, Fiji, Indian^M
icy-url:http://www.radioafsana.com^M
content-type:audio/mpeg^M
icy-pub:1^M
icy-metaint:8192^M
icy-br:128^M

Metadata is available as "StreamTitle='Aditi Singh Sharma - Luv Ka The End - LUV KA THE END."
However I am not able to extract the same.

Also not able to extract the metadata for the downloaded mp3 file using the following pipelines. However the above command that you mentioned will extract the metadata for the downloaded mp3 file


appsrc name=mysource ! audio/mpeg  ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink

Your input would be of great help.

Regards,
Sree Gowri.
 

 

 

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


Hi Stephan,

I am still stuck with metadata parsing as mentioned earlier. Could you please help me.

Thanks and Regards,
Sree Gowri

Just tried te winamp stream from http://www.radioafsana.com and it works fine (use the uri from inside the listen.pls).

Stefan

gst-launch -t playbin2 uri=http://208.186.112.40:8000/
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
FOUND TAG      : found by element "source".
    organization: Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop
           genre: Desi, Hindi , Bollywood, Fiji, Indian
        location: http://www.radioafsana.com
FOUND TAG      : found by element "icydemux0".
    organization: Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop
           genre: Desi, Hindi , Bollywood, Fiji, Indian
        location: http://www.radioafsana.com
FOUND TAG      : found by element "mpegaudioparse0".
     audio codec: MPEG 2 Audio, Layer 3 (MP3)
 nominal bitrate: 24000
FOUND TAG      : found by element "mpegaudioparse0".
         has crc: FALSE
    channel mode: mono
FOUND TAG      : found by element "mad0".
     audio codec: MPEG-1 Layer 3 (MP3)
FOUND TAG      : found by element "mpegaudioparse0".
 minimum bitrate: 24193
         bitrate: 24010
 maximum bitrate: 24193
FOUND TAG      : found by element "mpegaudioparse0".
 minimum bitrate: 23887
Prerolled, waiting for buffering to finish...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstPulseSinkClock
FOUND TAG      : found by element "icydemux0".
           title: Shahid Mallya - Rabba Main Toh Mar Gaya Oye - MAUSAM [2011]





_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
sree
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Audio Metadata

sree


On Fri, Apr 27, 2012 at 1:13 AM, Stefan Sauer <[hidden email]> wrote:
On 04/26/2012 07:53 PM, Sree Gowri wrote:


On Wed, Apr 25, 2012 at 12:19 PM, Sree Gowri <[hidden email]> wrote:


On Tue, Apr 24, 2012 at 9:42 PM, Sree Gowri <[hidden email]> wrote:


On Tue, Apr 24, 2012 at 5:46 PM, Stefan Sauer <[hidden email]> wrote:
On 04/24/2012 11:18 AM, Sree Gowri wrote:


On Mon, Apr 16, 2012 at 12:53 AM, Stefan Sauer <[hidden email]> wrote:
On 04/12/2012 06:23 AM, Sree Gowri wrote:
Hi,

I am trying to extract audio metadata like streamurl,streamtitle,artist,genre,album.However I am not able to extract the metadata using GstTagList. Below is the snippet of the code. Does anyone suggest what are the additions to be done in order to extract the metadata?

Only the following data has been extracted.
             layer: 3
             mode: joint
             emphasis: none
             audio codec: MPEG-1 layer 3
             bitrate: 128000

Pipeline is as follows:

[code]
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mad !  alsasink", NULL);
[/code]
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"
or even better
"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"

Stefan


Audio data fed to the appsrc element

[code]
buf =( GstBuffer *) gst_app_buffer_new (data, READBUF, g_free, data);
g_signal_emit_by_name (GST_APP_SRC (app->appsrc), "push-buffer", buf, &ret);
[/code]

Bus message

[code]
case GST_MESSAGE_TAG:
{
    GstTagList *tags = NULL;
        char *artist;
        gst_message_parse_tag (message, &tags);
        g_print ("Got tags from element %s:\n", GST_OBJECT_NAME (message->src));
        if (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &artist))
        {
           printf("got artist: %s\n",artist);
        }
        else
        {
          printf("no artist!! \n");
        }
        gst_tag_list_foreach (tags, print_tag, NULL);
        g_print ("\n");
        gst_tag_list_free (tags);
        break;
[/code]

print_tag function code
[code]
static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
{
  gint i, count;
  count = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < count; i++) {
    gchar *str;
    if (gst_tag_get_type (tag) == G_TYPE_STRING) {
      if (!gst_tag_list_get_string_index (list, tag, i, &str))
        g_assert_not_reached ();
 
    } else {
      str =
          g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
    }
    if (i == 0) {
      g_print ("  %15s: %s\n", gst_tag_get_nick (tag), str);
    } else {
      g_print ("                 : %s\n", str);
    }
    g_free (str);
  }
}
[/code]

Thanks and Regards,
Sree Gowri
      Hi stephan,

      First would like to thank you for the input you provided.
   
      I tried both the pipelines that you have mentioned,however meta data has not been    extracted.
 
     Kindly request you to let me know if there are any other changes that needs to be done.

Are you sure the stream you are looking at is tagged with such metadata? Try gst-launch-0.10 -t playbin2 uri=...

Stefan

   Yes the stream contains the metadata like streamTitle, streamUrl. In order to check does the stream really has metadata, appsrc buffer is written to a file and checked using hexedit and I can find the metadata.Sure will try your suggestion tomorrow and update you. Thankyou.
 
Regards,
Sree Gowri

     Hi Stephan,

      gst-launch-0.10 -t playbin2 uri=.... is also not extracting the metadata.

      Actually I am streaming the shoutcast stream.Audio stream data is feed to the appsrc element.
    Following is the header that is received

ICY 200 OK^M
icy-notice1:<BR>This stream requires <a href="http://www.winamp.com/">Winamp</a><BR>^M
icy-notice2:SHOUTcast Distributed Network Audio Server/win32 v1.9.8<BR>^M
icy-name:Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop^M
icy-genre:Desi, Hindi , Bollywood, Fiji, Indian^M
icy-url:http://www.radioafsana.com^M
content-type:audio/mpeg^M
icy-pub:1^M
icy-metaint:8192^M
icy-br:128^M

Metadata is available as "StreamTitle='Aditi Singh Sharma - Luv Ka The End - LUV KA THE END."
However I am not able to extract the same.

Also not able to extract the metadata for the downloaded mp3 file using the following pipelines. However the above command that you mentioned will extract the metadata for the downloaded mp3 file


appsrc name=mysource ! audio/mpeg  ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink

Your input would be of great help.

Regards,
Sree Gowri.
 

 

 

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


Hi Stephan,

I am still stuck with metadata parsing as mentioned earlier. Could you please help me.

Thanks and Regards,
Sree Gowri

Just tried te winamp stream from http://www.radioafsana.com and it works fine (use the uri from inside the listen.pls).

Stefan

gst-launch -t playbin2 uri=http://208.186.112.40:8000/
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
FOUND TAG      : found by element "source".
    organization: Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop
           genre: Desi, Hindi , Bollywood, Fiji, Indian
        location: http://www.radioafsana.com
FOUND TAG      : found by element "icydemux0".
    organization: Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop
           genre: Desi, Hindi , Bollywood, Fiji, Indian
        location: http://www.radioafsana.com
FOUND TAG      : found by element "mpegaudioparse0".
     audio codec: MPEG 2 Audio, Layer 3 (MP3)
 nominal bitrate: 24000
FOUND TAG      : found by element "mpegaudioparse0".
         has crc: FALSE
    channel mode: mono
FOUND TAG      : found by element "mad0".
     audio codec: MPEG-1 Layer 3 (MP3)
FOUND TAG      : found by element "mpegaudioparse0".
 minimum bitrate: 24193
         bitrate: 24010
 maximum bitrate: 24193
FOUND TAG      : found by element "mpegaudioparse0".
 minimum bitrate: 23887
Prerolled, waiting for buffering to finish...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstPulseSinkClock
FOUND TAG      : found by element "icydemux0".
           title: Shahid Mallya - Rabba Main Toh Mar Gaya Oye - MAUSAM [2011]

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


Hi Stephan,

Using http request along with gstreamer is working fine along with the metadata.

However I would like to extract the metadata from the buffer that is fed to the appsrc element.

Encountered the following error using the pipelines where downloading and feeding data is happening parallely

"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"

####
ERROR from element mpegaudioparse0: Failed to parse stream
Debugging info: gstbaseparse.c(2140): gst_base_parse_check_sync (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20/GstMpegAudioParse:mpegaudioparse0
ERROR from element mysource: Internal data flow error.
Debugging info: gstbasesrc.c(2582): gst_base_src_loop (): /GstPipeline:pipeline0/GstAppSrc:mysource:
streaming task paused, reason error (-5)
ERROR from element mpegaudioparse0: Failed to parse stream
Debugging info: gstbaseparse.c(2140): gst_base_parse_check_sync (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20/GstMpegAudioParse:mpegaudioparse0
ERROR from element mpegaudioparse0: No valid frames found before end of stream
Debugging info: gstbaseparse.c(1037): gst_base_parse_sink_eventfunc (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20/GstMpegAudioParse:mpegaudioparse0
ERROR from element decodebin20: GStreamer encountered a general stream error.
Debugging info: gstdecodebin2.c(3239): gst_decode_bin_expose (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20:
all streams without buffers
* About to connect() to scfire-dtc-aa03.stream.aol.com port 80 (#0)
*   Trying 205.188.234.3... * connected
* Connected to scfire-dtc-aa03.stream.aol.com (205.188.234.3) port 80 (#0)
> GET /stream/1013 HTTP/1.1
Host: scfire-dtc-aa03.stream.aol.com
Accept: */*
####

Request your kind inputs on this.

Thanks and Reards,
Sree Gowri

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
sree
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Audio Metadata

sree


On Fri, May 4, 2012 at 11:22 AM, Sree Gowri <[hidden email]> wrote:


On Fri, Apr 27, 2012 at 1:13 AM, Stefan Sauer <[hidden email]> wrote:
On 04/26/2012 07:53 PM, Sree Gowri wrote:


On Wed, Apr 25, 2012 at 12:19 PM, Sree Gowri <[hidden email]> wrote:


On Tue, Apr 24, 2012 at 9:42 PM, Sree Gowri <[hidden email]> wrote:


On Tue, Apr 24, 2012 at 5:46 PM, Stefan Sauer <[hidden email]> wrote:
On 04/24/2012 11:18 AM, Sree Gowri wrote:


On Mon, Apr 16, 2012 at 12:53 AM, Stefan Sauer <[hidden email]> wrote:
On 04/12/2012 06:23 AM, Sree Gowri wrote:
Hi,

I am trying to extract audio metadata like streamurl,streamtitle,artist,genre,album.However I am not able to extract the metadata using GstTagList. Below is the snippet of the code. Does anyone suggest what are the additions to be done in order to extract the metadata?

Only the following data has been extracted.
             layer: 3
             mode: joint
             emphasis: none
             audio codec: MPEG-1 layer 3
             bitrate: 128000

Pipeline is as follows:

[code]
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mad !  alsasink", NULL);
[/code]
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"
or even better
"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"

Stefan


Audio data fed to the appsrc element

[code]
buf =( GstBuffer *) gst_app_buffer_new (data, READBUF, g_free, data);
g_signal_emit_by_name (GST_APP_SRC (app->appsrc), "push-buffer", buf, &ret);
[/code]

Bus message

[code]
case GST_MESSAGE_TAG:
{
    GstTagList *tags = NULL;
        char *artist;
        gst_message_parse_tag (message, &tags);
        g_print ("Got tags from element %s:\n", GST_OBJECT_NAME (message->src));
        if (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &artist))
        {
           printf("got artist: %s\n",artist);
        }
        else
        {
          printf("no artist!! \n");
        }
        gst_tag_list_foreach (tags, print_tag, NULL);
        g_print ("\n");
        gst_tag_list_free (tags);
        break;
[/code]

print_tag function code
[code]
static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
{
  gint i, count;
  count = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < count; i++) {
    gchar *str;
    if (gst_tag_get_type (tag) == G_TYPE_STRING) {
      if (!gst_tag_list_get_string_index (list, tag, i, &str))
        g_assert_not_reached ();
 
    } else {
      str =
          g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
    }
    if (i == 0) {
      g_print ("  %15s: %s\n", gst_tag_get_nick (tag), str);
    } else {
      g_print ("                 : %s\n", str);
    }
    g_free (str);
  }
}
[/code]

Thanks and Regards,
Sree Gowri
      Hi stephan,

      First would like to thank you for the input you provided.
   
      I tried both the pipelines that you have mentioned,however meta data has not been    extracted.
 
     Kindly request you to let me know if there are any other changes that needs to be done.

Are you sure the stream you are looking at is tagged with such metadata? Try gst-launch-0.10 -t playbin2 uri=...

Stefan

   Yes the stream contains the metadata like streamTitle, streamUrl. In order to check does the stream really has metadata, appsrc buffer is written to a file and checked using hexedit and I can find the metadata.Sure will try your suggestion tomorrow and update you. Thankyou.
 
Regards,
Sree Gowri

     Hi Stephan,

      gst-launch-0.10 -t playbin2 uri=.... is also not extracting the metadata.

      Actually I am streaming the shoutcast stream.Audio stream data is feed to the appsrc element.
    Following is the header that is received

ICY 200 OK^M
icy-notice1:<BR>This stream requires <a href="http://www.winamp.com/">Winamp</a><BR>^M
icy-notice2:SHOUTcast Distributed Network Audio Server/win32 v1.9.8<BR>^M
icy-name:Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop^M
icy-genre:Desi, Hindi , Bollywood, Fiji, Indian^M
icy-url:http://www.radioafsana.com^M
content-type:audio/mpeg^M
icy-pub:1^M
icy-metaint:8192^M
icy-br:128^M

Metadata is available as "StreamTitle='Aditi Singh Sharma - Luv Ka The End - LUV KA THE END."
However I am not able to extract the same.

Also not able to extract the metadata for the downloaded mp3 file using the following pipelines. However the above command that you mentioned will extract the metadata for the downloaded mp3 file


appsrc name=mysource ! audio/mpeg  ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink

Your input would be of great help.

Regards,
Sree Gowri.
 

 

 

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


Hi Stephan,

I am still stuck with metadata parsing as mentioned earlier. Could you please help me.

Thanks and Regards,
Sree Gowri

Just tried te winamp stream from http://www.radioafsana.com and it works fine (use the uri from inside the listen.pls).

Stefan

gst-launch -t playbin2 uri=http://208.186.112.40:8000/
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
FOUND TAG      : found by element "source".
    organization: Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop
           genre: Desi, Hindi , Bollywood, Fiji, Indian
        location: http://www.radioafsana.com
FOUND TAG      : found by element "icydemux0".
    organization: Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop
           genre: Desi, Hindi , Bollywood, Fiji, Indian
        location: http://www.radioafsana.com
FOUND TAG      : found by element "mpegaudioparse0".
     audio codec: MPEG 2 Audio, Layer 3 (MP3)
 nominal bitrate: 24000
FOUND TAG      : found by element "mpegaudioparse0".
         has crc: FALSE
    channel mode: mono
FOUND TAG      : found by element "mad0".
     audio codec: MPEG-1 Layer 3 (MP3)
FOUND TAG      : found by element "mpegaudioparse0".
 minimum bitrate: 24193
         bitrate: 24010
 maximum bitrate: 24193
FOUND TAG      : found by element "mpegaudioparse0".
 minimum bitrate: 23887
Prerolled, waiting for buffering to finish...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstPulseSinkClock
FOUND TAG      : found by element "icydemux0".
           title: Shahid Mallya - Rabba Main Toh Mar Gaya Oye - MAUSAM [2011]

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


Hi Stephan,

Using http request along with gstreamer is working fine along with the metadata.

However I would like to extract the metadata from the buffer that is fed to the appsrc element.

Encountered the following error using the pipelines where downloading and feeding data is happening parallely


"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"

####
ERROR from element mpegaudioparse0: Failed to parse stream
Debugging info: gstbaseparse.c(2140): gst_base_parse_check_sync (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20/GstMpegAudioParse:mpegaudioparse0
ERROR from element mysource: Internal data flow error.
Debugging info: gstbasesrc.c(2582): gst_base_src_loop (): /GstPipeline:pipeline0/GstAppSrc:mysource:
streaming task paused, reason error (-5)
ERROR from element mpegaudioparse0: Failed to parse stream
Debugging info: gstbaseparse.c(2140): gst_base_parse_check_sync (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20/GstMpegAudioParse:mpegaudioparse0
ERROR from element mpegaudioparse0: No valid frames found before end of stream
Debugging info: gstbaseparse.c(1037): gst_base_parse_sink_eventfunc (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20/GstMpegAudioParse:mpegaudioparse0
ERROR from element decodebin20: GStreamer encountered a general stream error.
Debugging info: gstdecodebin2.c(3239): gst_decode_bin_expose (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20:
all streams without buffers
* About to connect() to scfire-dtc-aa03.stream.aol.com port 80 (#0)
*   Trying 205.188.234.3... * connected
* Connected to scfire-dtc-aa03.stream.aol.com (205.188.234.3) port 80 (#0)
> GET /stream/1013 HTTP/1.1
Host: scfire-dtc-aa03.stream.aol.com
Accept: */*
####

Request your kind inputs on this.

Thanks and Reards,
Sree Gowri


Hi Stephan,

Unfortunately I was not able to work on extracting audio metadata from buffer from last 2 months.I started working on this again.

Using curl, audio data is downloaded and using the following pipeline(all three pipelines work), I am able to play the buffer data. However not able to extract the streamtitle metadata. Other metadata has been extracted like layer,mode,bitrate etc..

app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg ! mad ! alsasink", NULL);
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink", NULL);
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink", NULL);

I tried even setting "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7" in curl before sending http request but still not able to extract the metadata.

I somehow feel some prerequisites needs to be set in the curl before sending http request for downloading buffer. It would be really great to have your suggestions on this.

Thanks and Regards,
Sree,


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
Stefan Sauer
Reply | Threaded
Open this post in threaded view
♦
♦
|

Re: Audio Metadata

Stefan Sauer
On 07/02/2012 03:09 PM, Sree Gowri wrote:


On Fri, May 4, 2012 at 11:22 AM, Sree Gowri <[hidden email]> wrote:


On Fri, Apr 27, 2012 at 1:13 AM, Stefan Sauer <[hidden email]> wrote:
On 04/26/2012 07:53 PM, Sree Gowri wrote:


On Wed, Apr 25, 2012 at 12:19 PM, Sree Gowri <[hidden email]> wrote:


On Tue, Apr 24, 2012 at 9:42 PM, Sree Gowri <[hidden email]> wrote:


On Tue, Apr 24, 2012 at 5:46 PM, Stefan Sauer <[hidden email]> wrote:
On 04/24/2012 11:18 AM, Sree Gowri wrote:


On Mon, Apr 16, 2012 at 12:53 AM, Stefan Sauer <[hidden email]> wrote:
On 04/12/2012 06:23 AM, Sree Gowri wrote:
Hi,

I am trying to extract audio metadata like streamurl,streamtitle,artist,genre,album.However I am not able to extract the metadata using GstTagList. Below is the snippet of the code. Does anyone suggest what are the additions to be done in order to extract the metadata?

Only the following data has been extracted.
             layer: 3
             mode: joint
             emphasis: none
             audio codec: MPEG-1 layer 3
             bitrate: 128000

Pipeline is as follows:

[code]
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mad !  alsasink", NULL);
[/code]
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"
or even better
"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"

Stefan


Audio data fed to the appsrc element

[code]
buf =( GstBuffer *) gst_app_buffer_new (data, READBUF, g_free, data);
g_signal_emit_by_name (GST_APP_SRC (app->appsrc), "push-buffer", buf, &ret);
[/code]

Bus message

[code]
case GST_MESSAGE_TAG:
{
    GstTagList *tags = NULL;
        char *artist;
        gst_message_parse_tag (message, &tags);
        g_print ("Got tags from element %s:\n", GST_OBJECT_NAME (message->src));
        if (gst_tag_list_get_string (tags, GST_TAG_ARTIST, &artist))
        {
           printf("got artist: %s\n",artist);
        }
        else
        {
          printf("no artist!! \n");
        }
        gst_tag_list_foreach (tags, print_tag, NULL);
        g_print ("\n");
        gst_tag_list_free (tags);
        break;
[/code]

print_tag function code
[code]
static void print_tag (const GstTagList * list, const gchar * tag, gpointer unused)
{
  gint i, count;
  count = gst_tag_list_get_tag_size (list, tag);
  for (i = 0; i < count; i++) {
    gchar *str;
    if (gst_tag_get_type (tag) == G_TYPE_STRING) {
      if (!gst_tag_list_get_string_index (list, tag, i, &str))
        g_assert_not_reached ();
 
    } else {
      str =
          g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, i));
    }
    if (i == 0) {
      g_print ("  %15s: %s\n", gst_tag_get_nick (tag), str);
    } else {
      g_print ("                 : %s\n", str);
    }
    g_free (str);
  }
}
[/code]

Thanks and Regards,
Sree Gowri
      Hi stephan,

      First would like to thank you for the input you provided.
   
      I tried both the pipelines that you have mentioned,however meta data has not been    extracted.
 
     Kindly request you to let me know if there are any other changes that needs to be done.

Are you sure the stream you are looking at is tagged with such metadata? Try gst-launch-0.10 -t playbin2 uri=...

Stefan

   Yes the stream contains the metadata like streamTitle, streamUrl. In order to check does the stream really has metadata, appsrc buffer is written to a file and checked using hexedit and I can find the metadata.Sure will try your suggestion tomorrow and update you. Thankyou.
 
Regards,
Sree Gowri

     Hi Stephan,

      gst-launch-0.10 -t playbin2 uri=.... is also not extracting the metadata.

      Actually I am streaming the shoutcast stream.Audio stream data is feed to the appsrc element.
    Following is the header that is received

ICY 200 OK^M
icy-notice1:<BR>This stream requires <a href="http://www.winamp.com/">Winamp</a><BR>^M
icy-notice2:SHOUTcast Distributed Network Audio Server/win32 v1.9.8<BR>^M
icy-name:Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop^M
icy-genre:Desi, Hindi , Bollywood, Fiji, Indian^M
icy-url:http://www.radioafsana.com^M
content-type:audio/mpeg^M
icy-pub:1^M
icy-metaint:8192^M
icy-br:128^M

Metadata is available as "StreamTitle='Aditi Singh Sharma - Luv Ka The End - LUV KA THE END."
However I am not able to extract the same.

Also not able to extract the metadata for the downloaded mp3 file using the following pipelines. However the above command that you mentioned will extract the metadata for the downloaded mp3 file


appsrc name=mysource ! audio/mpeg  ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink
appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink

Your input would be of great help.

Regards,
Sree Gowri.
 

 

 

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


Hi Stephan,

I am still stuck with metadata parsing as mentioned earlier. Could you please help me.

Thanks and Regards,
Sree Gowri

Just tried te winamp stream from http://www.radioafsana.com and it works fine (use the uri from inside the listen.pls).

Stefan

gst-launch -t playbin2 uri=http://208.186.112.40:8000/
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
FOUND TAG      : found by element "source".
    organization: Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop
           genre: Desi, Hindi , Bollywood, Fiji, Indian
        location: http://www.radioafsana.com
FOUND TAG      : found by element "icydemux0".
    organization: Radio Afsana Online 24/7 Radio - New - Remix: Non-Stop
           genre: Desi, Hindi , Bollywood, Fiji, Indian
        location: http://www.radioafsana.com
FOUND TAG      : found by element "mpegaudioparse0".
     audio codec: MPEG 2 Audio, Layer 3 (MP3)
 nominal bitrate: 24000
FOUND TAG      : found by element "mpegaudioparse0".
         has crc: FALSE
    channel mode: mono
FOUND TAG      : found by element "mad0".
     audio codec: MPEG-1 Layer 3 (MP3)
FOUND TAG      : found by element "mpegaudioparse0".
 minimum bitrate: 24193
         bitrate: 24010
 maximum bitrate: 24193
FOUND TAG      : found by element "mpegaudioparse0".
 minimum bitrate: 23887
Prerolled, waiting for buffering to finish...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstPulseSinkClock
FOUND TAG      : found by element "icydemux0".
           title: Shahid Mallya - Rabba Main Toh Mar Gaya Oye - MAUSAM [2011] 

_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel

______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel


Hi Stephan,

Using http request along with gstreamer is working fine along with the metadata.

However I would like to extract the metadata from the buffer that is fed to the appsrc element.

Encountered the following error using the pipelines where downloading and feeding data is happening parallely


"appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink"
"appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink"

####
ERROR from element mpegaudioparse0: Failed to parse stream
Debugging info: gstbaseparse.c(2140): gst_base_parse_check_sync (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20/GstMpegAudioParse:mpegaudioparse0
ERROR from element mysource: Internal data flow error.
Debugging info: gstbasesrc.c(2582): gst_base_src_loop (): /GstPipeline:pipeline0/GstAppSrc:mysource:
streaming task paused, reason error (-5)
ERROR from element mpegaudioparse0: Failed to parse stream
Debugging info: gstbaseparse.c(2140): gst_base_parse_check_sync (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20/GstMpegAudioParse:mpegaudioparse0
ERROR from element mpegaudioparse0: No valid frames found before end of stream
Debugging info: gstbaseparse.c(1037): gst_base_parse_sink_eventfunc (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20/GstMpegAudioParse:mpegaudioparse0
ERROR from element decodebin20: GStreamer encountered a general stream error.
Debugging info: gstdecodebin2.c(3239): gst_decode_bin_expose (): /GstPipeline:pipeline0/GstDecodeBin2:decodebin20:
all streams without buffers
* About to connect() to scfire-dtc-aa03.stream.aol.com port 80 (#0)
*   Trying 205.188.234.3... * connected
* Connected to scfire-dtc-aa03.stream.aol.com (205.188.234.3) port 80 (#0)
> GET /stream/1013 HTTP/1.1
Host: scfire-dtc-aa03.stream.aol.com
Accept: */*
####

Request your kind inputs on this.

Thanks and Reards,
Sree Gowri


Hi Stephan,

Unfortunately I was not able to work on extracting audio metadata from buffer from last 2 months.I started working on this again.

Using curl, audio data is downloaded and using the following pipeline(all three pipelines work), I am able to play the buffer data. However not able to extract the streamtitle metadata. Other metadata has been extracted like layer,mode,bitrate etc..

app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg ! mad ! alsasink", NULL);
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! decodebin2 !  alsasink", NULL);
app->pipeline= gst_parse_launch("appsrc name=mysource ! audio/mpeg  ! mp3parse ! mad !  alsasink", NULL);

I tried even setting "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7" in curl before sending http request but still not able to extract the metadata.

I somehow feel some prerequisites needs to be set in the curl before sending http request for downloading buffer. It would be really great to have your suggestions on this.
If you run gst-launch -tv playbin2 uri=http://208.186.112.40:8000/ you will see which elements post the metadata in the above example.

Stefan

Thanks and Regards,
Sree,



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel



_______________________________________________
gstreamer-devel mailing list
[hidden email]
http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
Free forum by Nabble Edit this page