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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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Cache the codec informations inside the registry
Otherwise we would always load all codecs during plugin initialization which can take quite some time (because of hardware) and also loads lots of shared libraries (which number is limited by 64 in Android).
This commit is contained in:
Sebastian Dröge
parent
a98a627370
commit
e7b21d5796
1 changed files with 159 additions and 5 deletions
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@ -1423,19 +1423,94 @@ done:
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}
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static gboolean
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scan_codecs (void)
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scan_codecs (GstPlugin * plugin)
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{
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gboolean ret = TRUE;
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JNIEnv *env;
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jclass codec_list_class = NULL;
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jmethodID get_codec_count_id, get_codec_info_at_id;
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jint codec_count, i;
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const GstStructure *cache_data;
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GST_DEBUG ("Scanning codecs");
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/* TODO: Cache this in the plugin and also cache
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* classes and method ids
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*/
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if ((cache_data = gst_plugin_get_cache_data (plugin))) {
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const GValue *arr = gst_structure_get_value (cache_data, "codecs");
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guint i, n;
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GST_DEBUG ("Getting codecs from cache");
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n = gst_value_array_get_size (arr);
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for (i = 0; i < n; i++) {
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const GValue *cv = gst_value_array_get_value (arr, i);
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const GstStructure *cs = gst_value_get_structure (cv);
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const gchar *name;
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gboolean is_encoder;
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const GValue *starr;
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guint j, n2;
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GstAmcCodecInfo *gst_codec_info;
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gst_codec_info = g_new0 (GstAmcCodecInfo, 1);
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name = gst_structure_get_string (cs, "name");
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gst_structure_get_boolean (cs, "is-encoder", &is_encoder);
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gst_codec_info->name = g_strdup (name);
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gst_codec_info->is_encoder = is_encoder;
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starr = gst_structure_get_value (cs, "supported-types");
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n2 = gst_value_array_get_size (starr);
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gst_codec_info->n_supported_types = n2;
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gst_codec_info->supported_types = g_new0 (GstAmcCodecType, n2);
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for (j = 0; j < n2; j++) {
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const GValue *stv = gst_value_array_get_value (starr, j);
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const GstStructure *sts = gst_value_get_structure (stv);
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const gchar *mime;
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const GValue *cfarr;
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const GValue *plarr;
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guint k, n3;
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GstAmcCodecType *gst_codec_type = &gst_codec_info->supported_types[j];
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mime = gst_structure_get_string (sts, "mime");
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gst_codec_type->mime = g_strdup (mime);
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cfarr = gst_structure_get_value (sts, "color-formats");
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n3 = gst_value_array_get_size (cfarr);
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gst_codec_type->n_color_formats = n3;
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gst_codec_type->color_formats = g_new0 (gint, n3);
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for (k = 0; k < n3; k++) {
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const GValue *cfv = gst_value_array_get_value (cfarr, k);
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gint cf = g_value_get_int (cfv);
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gst_codec_type->color_formats[k] = cf;
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}
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plarr = gst_structure_get_value (sts, "profile-levels");
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n3 = gst_value_array_get_size (plarr);
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gst_codec_type->n_profile_levels = n3;
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gst_codec_type->profile_levels =
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g_malloc0 (sizeof (gst_codec_type->profile_levels[0]) * n3);
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for (k = 0; k < n3; k++) {
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const GValue *plv = gst_value_array_get_value (plarr, k);
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const GValue *p, *l;
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p = gst_value_array_get_value (plv, 0);
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l = gst_value_array_get_value (plv, 1);
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gst_codec_type->profile_levels[k].profile = g_value_get_int (p);
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gst_codec_type->profile_levels[k].level = g_value_get_int (l);
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}
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}
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codec_infos = g_list_append (codec_infos, gst_codec_info);
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}
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return TRUE;
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}
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env = gst_amc_get_jni_env ();
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codec_list_class = (*env)->FindClass (env, "android/media/MediaCodecList");
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@ -1835,6 +1910,85 @@ scan_codecs (void)
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ret = codec_infos != NULL;
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/* If successful we store a cache of the codec information in
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* the registry. Otherwise we would always load all codecs during
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* plugin initialization which can take quite some time (because
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* of hardware) and also loads lots of shared libraries (which
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* number is limited by 64 in Android).
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*/
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if (ret) {
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GstStructure *new_cache_data = gst_structure_empty_new ("gst-amc-cache");
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GList *l;
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GValue arr = { 0, };
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g_value_init (&arr, GST_TYPE_ARRAY);
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for (l = codec_infos; l; l = l->next) {
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GstAmcCodecInfo *gst_codec_info = l->data;
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GValue cv = { 0, };
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GstStructure *cs = gst_structure_empty_new ("gst-amc-codec");
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GValue starr = { 0, };
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gint i;
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gst_structure_set (cs, "name", G_TYPE_STRING, gst_codec_info->name,
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"is-encoder", G_TYPE_BOOLEAN, gst_codec_info->is_encoder, NULL);
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g_value_init (&starr, GST_TYPE_ARRAY);
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for (i = 0; i < gst_codec_info->n_supported_types; i++) {
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GstAmcCodecType *gst_codec_type = &gst_codec_info->supported_types[i];
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GstStructure *sts = gst_structure_empty_new ("gst-amc-supported-type");
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GValue tmparr = { 0, };
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gint j;
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gst_structure_set (sts, "mime", G_TYPE_STRING, gst_codec_type->mime,
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NULL);
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g_value_init (&tmparr, GST_TYPE_ARRAY);
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for (j = 0; j < gst_codec_type->n_color_formats; j++) {
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GValue tmp = { 0, };
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g_value_init (&tmp, G_TYPE_INT);
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g_value_set_int (&tmp, gst_codec_type->color_formats[j]);
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gst_value_array_append_value (&tmparr, &tmp);
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g_value_unset (&tmp);
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}
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gst_structure_set_value (sts, "color-formats", &tmparr);
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g_value_unset (&tmparr);
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g_value_init (&tmparr, GST_TYPE_ARRAY);
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for (j = 0; j < gst_codec_type->n_profile_levels; j++) {
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GValue tmparr2 = { 0, };
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GValue tmp = { 0, };
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g_value_init (&tmparr2, GST_TYPE_ARRAY);
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g_value_init (&tmp, G_TYPE_INT);
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g_value_set_int (&tmp, gst_codec_type->profile_levels[j].profile);
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gst_value_array_append_value (&tmparr2, &tmp);
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g_value_set_int (&tmp, gst_codec_type->profile_levels[j].level);
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gst_value_array_append_value (&tmparr2, &tmp);
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gst_value_array_append_value (&tmparr, &tmparr2);
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g_value_unset (&tmp);
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g_value_unset (&tmparr2);
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}
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gst_structure_set_value (sts, "profile-levels", &tmparr);
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g_value_unset (&tmparr);
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}
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gst_structure_set_value (cs, "supported-types", &starr);
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g_value_unset (&starr);
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g_value_init (&cv, GST_TYPE_STRUCTURE);
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gst_value_array_append_value (&arr, &cv);
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g_value_unset (&cv);
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}
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gst_structure_set_value (new_cache_data, "codecs", &arr);
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g_value_unset (&arr);
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gst_plugin_set_cache_data (plugin, new_cache_data);
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}
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done:
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if (codec_list_class)
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(*env)->DeleteLocalRef (env, codec_list_class);
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@ -2363,7 +2517,7 @@ plugin_init (GstPlugin * plugin)
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gst_plugin_add_dependency_simple (plugin, NULL, "/etc", "media_codecs.xml",
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GST_PLUGIN_DEPENDENCY_FLAG_NONE);
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if (!get_java_classes () || !scan_codecs ())
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if (!get_java_classes () || !scan_codecs (plugin))
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return FALSE;
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gst_amc_codec_info_quark = g_quark_from_static_string ("gst-amc-codec-info");
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