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-rw-r--r--ext/opus/gstopusheader.c212
1 files changed, 0 insertions, 212 deletions
diff --git a/ext/opus/gstopusheader.c b/ext/opus/gstopusheader.c
index 7c1cebe3c..dcc85897d 100644
--- a/ext/opus/gstopusheader.c
+++ b/ext/opus/gstopusheader.c
@@ -26,218 +26,6 @@
#include <gst/base/gstbytewriter.h>
#include "gstopusheader.h"
-static GstBuffer *
-gst_opus_enc_create_id_buffer (guint16 pre_skip, guint sample_rate,
- guint8 nchannels, guint8 n_stereo_streams, guint8 channel_mapping_family,
- const guint8 * channel_mapping)
-{
- GstBuffer *buffer;
- GstByteWriter bw;
- gboolean hdl = TRUE;
-
- g_return_val_if_fail (nchannels > 0, NULL);
- g_return_val_if_fail (n_stereo_streams <= nchannels - n_stereo_streams, NULL);
-
- gst_byte_writer_init (&bw);
-
- /* See http://wiki.xiph.org/OggOpus */
- hdl &= gst_byte_writer_put_data (&bw, (const guint8 *) "OpusHead", 8);
- hdl &= gst_byte_writer_put_uint8 (&bw, 0x01); /* version number */
- hdl &= gst_byte_writer_put_uint8 (&bw, nchannels);
- hdl &= gst_byte_writer_put_uint16_le (&bw, pre_skip);
- hdl &= gst_byte_writer_put_uint32_le (&bw, sample_rate);
- hdl &= gst_byte_writer_put_uint16_le (&bw, 0); /* output gain */
- hdl &= gst_byte_writer_put_uint8 (&bw, channel_mapping_family);
- if (channel_mapping_family > 0) {
- hdl &= gst_byte_writer_put_uint8 (&bw, nchannels - n_stereo_streams);
- hdl &= gst_byte_writer_put_uint8 (&bw, n_stereo_streams);
- hdl &= gst_byte_writer_put_data (&bw, channel_mapping, nchannels);
- }
-
- if (!hdl)
- GST_WARNING ("Error creating header");
-
- buffer = gst_byte_writer_reset_and_get_buffer (&bw);
-
- GST_BUFFER_OFFSET (buffer) = 0;
- GST_BUFFER_OFFSET_END (buffer) = 0;
-
- return buffer;
-}
-
-static GstBuffer *
-gst_opus_enc_create_metadata_buffer (const GstTagList * tags)
-{
- GstTagList *empty_tags = NULL;
- GstBuffer *comments = NULL;
-
- GST_DEBUG ("tags = %" GST_PTR_FORMAT, tags);
-
- if (tags == NULL) {
- /* FIXME: better fix chain of callers to not write metadata at all,
- * if there is none */
- empty_tags = gst_tag_list_new_empty ();
- tags = empty_tags;
- }
- comments =
- gst_tag_list_to_vorbiscomment_buffer (tags, (const guint8 *) "OpusTags",
- 8, "Encoded with GStreamer Opusenc");
-
- GST_BUFFER_OFFSET (comments) = 0;
- GST_BUFFER_OFFSET_END (comments) = 0;
-
- if (empty_tags)
- gst_tag_list_unref (empty_tags);
-
- return comments;
-}
-
-/*
- * (really really) FIXME: move into core (dixit tpm)
- */
-/*
- * _gst_caps_set_buffer_array:
- * @caps: (transfer full): a #GstCaps
- * @field: field in caps to set
- * @buf: header buffers
- *
- * Adds given buffers to an array of buffers set as the given @field
- * on the given @caps. List of buffer arguments must be NULL-terminated.
- *
- * Returns: (transfer full): input caps with a streamheader field added, or NULL
- * if some error occurred
- */
-static GstCaps *
-_gst_caps_set_buffer_array (GstCaps * caps, const gchar * field,
- GstBuffer * buf, ...)
-{
- GstStructure *structure = NULL;
- va_list va;
- GValue array = { 0 };
- GValue value = { 0 };
-
- g_return_val_if_fail (caps != NULL, NULL);
- g_return_val_if_fail (gst_caps_is_fixed (caps), NULL);
- g_return_val_if_fail (field != NULL, NULL);
-
- caps = gst_caps_make_writable (caps);
- structure = gst_caps_get_structure (caps, 0);
-
- g_value_init (&array, GST_TYPE_ARRAY);
-
- va_start (va, buf);
- /* put buffers in a fixed list */
- while (buf) {
- g_assert (gst_buffer_is_writable (buf));
-
- /* mark buffer */
- GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER);
-
- g_value_init (&value, GST_TYPE_BUFFER);
- buf = gst_buffer_copy (buf);
- GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER);
- gst_value_set_buffer (&value, buf);
- gst_buffer_unref (buf);
- gst_value_array_append_value (&array, &value);
- g_value_unset (&value);
-
- buf = va_arg (va, GstBuffer *);
- }
- va_end (va);
-
- gst_structure_set_value (structure, field, &array);
- g_value_unset (&array);
-
- return caps;
-}
-
-void
-gst_opus_header_create_caps_from_headers (GstCaps ** caps, GSList ** headers,
- GstBuffer * buf1, GstBuffer * buf2)
-{
- int n_streams, family;
- gint channels, rate;
- gboolean multistream;
- GstMapInfo map;
- guint8 *data;
-
- g_return_if_fail (caps);
- g_return_if_fail (!headers || !*headers);
- g_return_if_fail (gst_buffer_get_size (buf1) >= 19);
-
- gst_buffer_map (buf1, &map, GST_MAP_READ);
- data = map.data;
-
- channels = data[9];
- rate = GST_READ_UINT32_LE (data + 12);
-
- /* work out the number of streams */
- family = data[18];
- if (family == 0) {
- n_streams = 1;
- } else {
- /* only included in the header for family > 0 */
- if (map.size >= 20)
- n_streams = data[19];
- else {
- g_warning ("family > 0 but header buffer size < 20");
- gst_buffer_unmap (buf1, &map);
- return;
- }
- }
-
- /* TODO: should probably also put the channel mapping into the caps too once
- * we actually support multi channel, and pre-skip and other fields */
-
- gst_buffer_unmap (buf1, &map);
-
- /* mark and put on caps */
- multistream = n_streams > 1;
- *caps = gst_caps_new_simple ("audio/x-opus",
- "multistream", G_TYPE_BOOLEAN, multistream,
- "channels", G_TYPE_INT, channels, NULL);
-
- if (rate > 0) {
- gst_caps_set_simple (*caps, "rate", G_TYPE_INT, rate, NULL);
- }
-
- *caps = _gst_caps_set_buffer_array (*caps, "streamheader", buf1, buf2, NULL);
-
- if (headers) {
- *headers = g_slist_prepend (*headers, gst_buffer_ref (buf2));
- *headers = g_slist_prepend (*headers, gst_buffer_ref (buf1));
- }
-}
-
-void
-gst_opus_header_create_caps (GstCaps ** caps, GSList ** headers,
- guint16 pre_skip, guint sample_rate, guint8 nchannels,
- guint8 n_stereo_streams, guint8 channel_mapping_family,
- const guint8 * channel_mapping, const GstTagList * tags)
-{
- GstBuffer *buf1, *buf2;
-
- g_return_if_fail (caps);
- g_return_if_fail (!headers || !*headers);
- g_return_if_fail (nchannels > 0);
- g_return_if_fail (channel_mapping_family == 0 || channel_mapping);
-
- /* Opus streams in Ogg begin with two headers; the initial header (with
- most of the codec setup parameters) which is mandated by the Ogg
- bitstream spec. The second header holds any comment fields. */
-
- /* create header buffers */
- buf1 =
- gst_opus_enc_create_id_buffer (pre_skip, sample_rate, nchannels,
- n_stereo_streams, channel_mapping_family, channel_mapping);
- buf2 = gst_opus_enc_create_metadata_buffer (tags);
-
- gst_opus_header_create_caps_from_headers (caps, headers, buf1, buf2);
-
- gst_buffer_unref (buf2);
- gst_buffer_unref (buf1);
-}
-
gboolean
gst_opus_header_is_header (GstBuffer * buf, const char *magic, guint magic_size)
{
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