static void list_codecs (void) { GstCaps *l, *caps; GstStructure *st; guint i, len; gchar *tmpstr, *desc; caps = gst_caps_new_empty (); g_print ("Available container formats:\n"); l = gst_caps_list_container_formats (GST_RANK_NONE); len = gst_caps_get_size (l); for (i = 0; i < len; i++) { st = gst_caps_steal_structure (l, 0); gst_caps_append_structure (caps, st); tmpstr = gst_caps_to_string (caps); desc = gst_pb_utils_get_codec_description (caps); g_print (" %s - %s\n", desc, tmpstr); g_free (tmpstr); if (desc) g_free (desc); gst_caps_remove_structure (caps, 0); } g_print ("\n"); gst_caps_unref (l); g_print ("Available video codecs:\n"); l = gst_caps_list_video_encoding_formats (GST_RANK_NONE); len = gst_caps_get_size (l); for (i = 0; i < len; i++) { st = gst_caps_steal_structure (l, 0); gst_caps_append_structure (caps, st); tmpstr = gst_caps_to_string (caps); desc = gst_pb_utils_get_codec_description (caps); g_print (" %s - %s\n", desc, tmpstr); g_free (tmpstr); if (desc) g_free (desc); gst_caps_remove_structure (caps, 0); } g_print ("\n"); gst_caps_unref (l); g_print ("Available audio codecs:\n"); l = gst_caps_list_audio_encoding_formats (GST_RANK_NONE); len = gst_caps_get_size (l); for (i = 0; i < len; i++) { st = gst_caps_steal_structure (l, 0); gst_caps_append_structure (caps, st); tmpstr = gst_caps_to_string (caps); desc = gst_pb_utils_get_codec_description (caps); g_print (" %s - %s\n", desc, tmpstr); g_free (tmpstr); if (desc) g_free (desc); gst_caps_remove_structure (caps, 0); } g_print ("\n"); gst_caps_unref (l); gst_caps_unref (caps); }
int main (int argc, char **argv) { GError *err = NULL; gchar *outputuri = NULL; gchar *format = NULL; gchar *aformat = NULL; gchar *vformat = NULL; gboolean allmissing = FALSE; gboolean listcodecs = FALSE; GOptionEntry options[] = { { "silent", 's', 0, G_OPTION_ARG_NONE, &silent, "Don't output the information structure", NULL }, { "outputuri", 'o', 0, G_OPTION_ARG_STRING, &outputuri, "URI to encode to", "URI (<protocol>://<location>)" }, { "format", 'f', 0, G_OPTION_ARG_STRING, &format, "Container format", "<GstCaps>" }, { "vformat", 'v', 0, G_OPTION_ARG_STRING, &vformat, "Video format", "<GstCaps>" }, { "aformat", 'a', 0, G_OPTION_ARG_STRING, &aformat, "Audio format", "<GstCaps>" }, { "allmissing", 'm', 0, G_OPTION_ARG_NONE, &allmissing, "encode to all matching format/codec that aren't specified", NULL }, { "list-codecs", 'l', 0, G_OPTION_ARG_NONE, &listcodecs, "list all available codecs and container formats", NULL }, {NULL} }; GOptionContext *ctx; GstEncodingProfile *prof; gchar *inputuri; ctx = g_option_context_new ("- encode URIs with GstProfile and encodebin"); g_option_context_add_main_entries (ctx, options, NULL); g_option_context_add_group (ctx, gst_init_get_option_group ()); if (!g_option_context_parse (ctx, &argc, &argv, &err)) { g_print ("Error initializing: %s\n", err->message); exit (1); } if (listcodecs) { list_codecs (); g_option_context_free (ctx); exit (0); } if (outputuri == NULL || argc != 2) { g_print ("%s", g_option_context_get_help (ctx, TRUE, NULL)); g_option_context_free (ctx); exit (-1); } g_option_context_free (ctx); /* Fixup outputuri to be a URI */ inputuri = ensure_uri (argv[1]); outputuri = ensure_uri (outputuri); if (allmissing) { GList *muxers; GstCaps *formats = NULL; GstCaps *vformats = NULL; GstCaps *aformats = NULL; guint f, v, a, flen, vlen, alen; if (!format) formats = gst_caps_list_container_formats (GST_RANK_NONE); else formats = gst_caps_from_string (format); if (!vformat) vformats = gst_caps_list_video_encoding_formats (GST_RANK_NONE); else vformats = gst_caps_from_string (vformat); if (!aformat) aformats = gst_caps_list_audio_encoding_formats (GST_RANK_NONE); else aformats = gst_caps_from_string (aformat); muxers = gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_MUXER, GST_RANK_NONE); flen = gst_caps_get_size (formats); for (f = 0; f < flen; f++) { GstCaps *container = gst_caps_new_full (gst_caps_steal_structure (formats, 0), NULL); GstCaps *compatv = gst_caps_list_compatible_codecs (container, vformats, muxers); GstCaps *compata = gst_caps_list_compatible_codecs (container, aformats, muxers); vlen = gst_caps_get_size (compatv); alen = gst_caps_get_size (compata); for (v = 0; v < vlen; v++) { GstCaps *vcodec = gst_caps_new_full (gst_structure_copy (gst_caps_get_structure (compatv, v)), NULL); for (a = 0; a < alen; a++) { GstCaps *acodec = gst_caps_new_full (gst_structure_copy (gst_caps_get_structure (compata, a)), NULL); prof = create_profile ((GstCaps *) container, (GstCaps *) vcodec, (GstCaps *) acodec); if (G_UNLIKELY (prof == NULL)) { g_print ("Wrong arguments\n"); break; } outputuri = ensure_uri (generate_filename (container, vcodec, acodec)); transcode_file (inputuri, outputuri, prof); gst_encoding_profile_unref (prof); gst_caps_unref (acodec); } gst_caps_unref (vcodec); } gst_caps_unref (container); } } else { /* Create the profile */ prof = create_profile_from_string (format, vformat, aformat); if (G_UNLIKELY (prof == NULL)) { g_print ("Encoding arguments are not valid !\n"); return 1; } /* Transcode file */ transcode_file (inputuri, outputuri, prof); /* cleanup */ gst_encoding_profile_unref (prof); } return 0; }
/* creates/returns a list of CodecCap based on given filter function and caps */ static GList * get_plugins_filtered_from_caps (FilterFunc filter, GstCaps *caps, GstPadDirection direction) { GList *walk, *result; GList *list = NULL; GstCaps *matched_caps = NULL; result = gst_registry_get_feature_list (gst_registry_get (), GST_TYPE_ELEMENT_FACTORY); result = g_list_sort (result, (GCompareFunc) compare_ranks); for (walk = result; walk; walk = walk->next) { GstElementFactory *factory = GST_ELEMENT_FACTORY (walk->data); /* Ignore unranked plugins */ if (gst_plugin_feature_get_rank (GST_PLUGIN_FEATURE (factory)) == GST_RANK_NONE) continue; if (!filter (factory)) continue; if (caps && !check_caps_compatibility (factory, caps, &matched_caps)) continue; if (!matched_caps) { list = create_codec_cap_list (factory, direction, list, NULL); } else { gint i; GPtrArray *capslist = g_ptr_array_new_with_free_func ( (GDestroyNotify) gst_caps_unref); while (gst_caps_get_size (matched_caps) > 0) { GstCaps *stolencaps = gst_caps_new_full ( gst_caps_steal_structure (matched_caps, 0), NULL); gboolean got_match = FALSE; for (i = 0; i < capslist->len; i++) { GstCaps *intersect = gst_caps_intersect (stolencaps, g_ptr_array_index (capslist, i)); if (gst_caps_is_empty (intersect)) { gst_caps_unref (intersect); } else { got_match = TRUE; gst_caps_unref (g_ptr_array_index (capslist, i)); g_ptr_array_index (capslist, i) = intersect; } } if (got_match) gst_caps_unref (stolencaps); else g_ptr_array_add (capslist, stolencaps); } gst_caps_unref (matched_caps); for (i = 0; i < capslist->len; i++) list = create_codec_cap_list (factory, direction, list, g_ptr_array_index (capslist, i)); g_ptr_array_unref (capslist); } } gst_plugin_feature_list_free (result); return list; }