static void
gst_hls_demux_clear_pending_data (GstHLSDemux * hlsdemux)
{
gst_hls_demux_decrypt_end (hlsdemux);
gst_adapter_clear (hlsdemux->pending_encrypted_data);
gst_buffer_replace (&hlsdemux->pending_decrypted_buffer, NULL);
gst_buffer_replace (&hlsdemux->pending_typefind_buffer, NULL);
hlsdemux->current_offset = -1;
}
static GstFlowReturn
gst_hls_demux_finish_fragment (GstAdaptiveDemux * demux,
GstAdaptiveDemuxStream * stream)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
GstFlowReturn ret = GST_FLOW_OK;
if (hlsdemux->current_key)
gst_hls_demux_decrypt_end (hlsdemux);
/* ideally this should be empty, but this eos might have been
* caused by an error on the source element */
GST_DEBUG_OBJECT (demux, "Data still on the adapter when EOS was received"
": %" G_GSIZE_FORMAT, gst_adapter_available (stream->adapter));
gst_adapter_clear (stream->adapter);
if (stream->last_ret == GST_FLOW_OK) {
if (hlsdemux->pending_buffer) {
if (hlsdemux->current_key) {
GstMapInfo info;
gssize unpadded_size;
/* Handle pkcs7 unpadding here */
gst_buffer_map (hlsdemux->pending_buffer, &info, GST_MAP_READ);
unpadded_size = info.size - info.data[info.size - 1];
gst_buffer_unmap (hlsdemux->pending_buffer, &info);
gst_buffer_resize (hlsdemux->pending_buffer, 0, unpadded_size);
}
ret =
gst_hls_demux_handle_buffer (demux, stream, hlsdemux->pending_buffer,
TRUE);
hlsdemux->pending_buffer = NULL;
}
} else {
if (hlsdemux->pending_buffer)
gst_buffer_unref (hlsdemux->pending_buffer);
hlsdemux->pending_buffer = NULL;
}
if (ret == GST_FLOW_OK || ret == GST_FLOW_NOT_LINKED)
return gst_adaptive_demux_stream_advance_fragment (demux, stream,
stream->fragment.duration);
return ret;
}
static GstFlowReturn
gst_hls_demux_finish_fragment (GstAdaptiveDemux * demux,
GstAdaptiveDemuxStream * stream)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
GstFlowReturn ret = GST_FLOW_OK;
if (hlsdemux->current_key)
gst_hls_demux_decrypt_end (hlsdemux);
if (stream->last_ret == GST_FLOW_OK) {
if (hlsdemux->pending_decrypted_buffer) {
if (hlsdemux->current_key) {
GstMapInfo info;
gssize unpadded_size;
/* Handle pkcs7 unpadding here */
gst_buffer_map (hlsdemux->pending_decrypted_buffer, &info,
GST_MAP_READ);
unpadded_size = info.size - info.data[info.size - 1];
gst_buffer_unmap (hlsdemux->pending_decrypted_buffer, &info);
gst_buffer_resize (hlsdemux->pending_decrypted_buffer, 0,
unpadded_size);
}
ret =
gst_hls_demux_handle_buffer (demux, stream,
hlsdemux->pending_decrypted_buffer, TRUE);
hlsdemux->pending_decrypted_buffer = NULL;
}
}
gst_hls_demux_clear_pending_data (hlsdemux);
if (ret == GST_FLOW_OK || ret == GST_FLOW_NOT_LINKED)
return gst_adaptive_demux_stream_advance_fragment (demux, stream,
stream->fragment.duration);
return ret;
}
static void
gst_hls_demux_reset (GstAdaptiveDemux * ademux)
{
GstHLSDemux *demux = GST_HLS_DEMUX_CAST (ademux);
demux->do_typefind = TRUE;
demux->reset_pts = TRUE;
g_free (demux->key_url);
demux->key_url = NULL;
if (demux->key_fragment)
g_object_unref (demux->key_fragment);
demux->key_fragment = NULL;
if (demux->client) {
gst_m3u8_client_free (demux->client);
demux->client = NULL;
}
/* TODO recreated on hls only if reset was not for disposing */
demux->client = gst_m3u8_client_new ("", NULL);
demux->srcpad_counter = 0;
if (demux->pending_buffer)
gst_buffer_unref (demux->pending_buffer);
demux->pending_buffer = NULL;
if (demux->current_key) {
g_free (demux->current_key);
demux->current_key = NULL;
}
if (demux->current_iv) {
g_free (demux->current_iv);
demux->current_iv = NULL;
}
gst_hls_demux_decrypt_end (demux);
}
static gboolean
gst_hls_demux_seek (GstAdaptiveDemux * demux, GstEvent * seek)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
GstFormat format;
GstSeekFlags flags;
GstSeekType start_type, stop_type;
gint64 start, stop;
gdouble rate;
GList *walk, *current_file = NULL;
GstClockTime current_pos, target_pos;
gint64 current_sequence;
GstM3U8MediaFile *file;
guint64 bitrate;
gst_event_parse_seek (seek, &rate, &format, &flags, &start_type, &start,
&stop_type, &stop);
bitrate = gst_hls_demux_get_bitrate (hlsdemux);
/* properly cleanup pending decryption status */
if (flags & GST_SEEK_FLAG_FLUSH) {
gst_hls_demux_decrypt_end (hlsdemux);
}
/* Use I-frame variants for trick modes */
if (hlsdemux->client->main->iframe_lists && rate < -1.0
&& demux->segment.rate >= -1.0 && demux->segment.rate <= 1.0) {
GError *err = NULL;
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
/* Switch to I-frame variant */
hlsdemux->client->main->current_variant =
hlsdemux->client->main->iframe_lists;
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
gst_m3u8_client_set_current (hlsdemux->client,
hlsdemux->client->main->iframe_lists->data);
gst_uri_downloader_reset (demux->downloader);
if (!gst_hls_demux_update_playlist (hlsdemux, FALSE, &err)) {
GST_ELEMENT_ERROR_FROM_ERROR (hlsdemux, "Could not switch playlist", err);
return FALSE;
}
//hlsdemux->discont = TRUE;
hlsdemux->do_typefind = TRUE;
gst_hls_demux_change_playlist (hlsdemux, bitrate / ABS (rate), NULL);
} else if (rate > -1.0 && rate <= 1.0 && (demux->segment.rate < -1.0
|| demux->segment.rate > 1.0)) {
GError *err = NULL;
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
/* Switch to normal variant */
hlsdemux->client->main->current_variant = hlsdemux->client->main->lists;
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
gst_m3u8_client_set_current (hlsdemux->client,
hlsdemux->client->main->lists->data);
gst_uri_downloader_reset (demux->downloader);
if (!gst_hls_demux_update_playlist (hlsdemux, FALSE, &err)) {
GST_ELEMENT_ERROR_FROM_ERROR (hlsdemux, "Could not switch playlist", err);
return FALSE;
}
//hlsdemux->discont = TRUE;
hlsdemux->do_typefind = TRUE;
/* TODO why not continue using the same? that was being used up to now? */
gst_hls_demux_change_playlist (hlsdemux, bitrate, NULL);
}
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
file = GST_M3U8_MEDIA_FILE (hlsdemux->client->current->files->data);
current_sequence = file->sequence;
current_pos = 0;
target_pos = rate > 0 ? start : stop;
/* FIXME: Here we need proper discont handling */
for (walk = hlsdemux->client->current->files; walk; walk = walk->next) {
file = walk->data;
current_sequence = file->sequence;
current_file = walk;
if (current_pos <= target_pos && target_pos < current_pos + file->duration) {
break;
}
current_pos += file->duration;
}
if (walk == NULL) {
GST_DEBUG_OBJECT (demux, "seeking further than track duration");
current_sequence++;
}
GST_DEBUG_OBJECT (demux, "seeking to sequence %u", (guint) current_sequence);
hlsdemux->reset_pts = TRUE;
hlsdemux->client->sequence = current_sequence;
hlsdemux->client->current_file =
current_file ? current_file : hlsdemux->client->current->files;
hlsdemux->client->sequence_position = current_pos;
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
return TRUE;
}
