static GstClockTime
gst_hls_demux_get_duration (GstAdaptiveDemux * demux)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
return gst_m3u8_client_get_duration (hlsdemux->client);
}
static gboolean
gst_hls_demux_select_bitrate (GstAdaptiveDemuxStream * stream, guint64 bitrate)
{
GstAdaptiveDemux *demux = GST_ADAPTIVE_DEMUX_CAST (stream->demux);
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (stream->demux);
gboolean changed = FALSE;
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
if (!hlsdemux->client->main->lists) {
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
return FALSE;
}
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
/* FIXME: Currently several issues have be found when letting bitrate adaptation
* happen using trick modes (such as 'All streams finished without buffers') and
* the adaptive algorithm does not properly behave. */
if (demux->segment.rate != 1.0)
return FALSE;
gst_hls_demux_change_playlist (hlsdemux, bitrate, &changed);
if (changed)
gst_hls_demux_setup_streams (GST_ADAPTIVE_DEMUX_CAST (hlsdemux));
return changed;
}
/* Handles decrypted buffers only */
static GstFlowReturn
gst_hls_demux_handle_buffer (GstAdaptiveDemux * demux,
GstAdaptiveDemuxStream * stream, GstBuffer * buffer, gboolean force)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
if (G_UNLIKELY (hlsdemux->do_typefind && buffer != NULL)) {
GstCaps *caps = NULL;
GstMapInfo info;
guint buffer_size;
GstTypeFindProbability prob = GST_TYPE_FIND_NONE;
if (hlsdemux->pending_typefind_buffer)
buffer = gst_buffer_append (hlsdemux->pending_typefind_buffer, buffer);
hlsdemux->pending_typefind_buffer = NULL;
gst_buffer_map (buffer, &info, GST_MAP_READ);
buffer_size = info.size;
/* Typefind could miss if buffer is too small. In this case we
* will retry later */
if (buffer_size >= (2 * 1024)) {
caps =
gst_type_find_helper_for_data (GST_OBJECT_CAST (hlsdemux), info.data,
info.size, &prob);
}
gst_buffer_unmap (buffer, &info);
if (G_UNLIKELY (!caps)) {
/* Only fail typefinding if we already a good amount of data
* and we still don't know the type */
if (buffer_size > (2 * 1024 * 1024) || force) {
GST_ELEMENT_ERROR (hlsdemux, STREAM, TYPE_NOT_FOUND,
("Could not determine type of stream"), (NULL));
gst_buffer_unref (buffer);
return GST_FLOW_NOT_NEGOTIATED;
} else {
hlsdemux->pending_typefind_buffer = buffer;
return GST_FLOW_OK;
}
}
GST_DEBUG_OBJECT (hlsdemux, "Typefind result: %" GST_PTR_FORMAT " prob:%d",
caps, prob);
gst_adaptive_demux_stream_set_caps (stream, caps);
hlsdemux->do_typefind = FALSE;
}
g_assert (hlsdemux->pending_typefind_buffer == NULL);
if (buffer) {
buffer = gst_buffer_make_writable (buffer);
GST_BUFFER_OFFSET (buffer) = hlsdemux->current_offset;
hlsdemux->current_offset += gst_buffer_get_size (buffer);
GST_BUFFER_OFFSET_END (buffer) = hlsdemux->current_offset;
return gst_adaptive_demux_stream_push_buffer (stream, buffer);
}
return GST_FLOW_OK;
}
static gboolean
gst_hls_demux_is_live (GstAdaptiveDemux * demux)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
return gst_m3u8_client_is_live (hlsdemux->client);
}
static gboolean
gst_hls_demux_start_fragment (GstAdaptiveDemux * demux,
GstAdaptiveDemuxStream * stream)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
if (hlsdemux->current_key) {
GError *err = NULL;
GstFragment *key_fragment;
GstBuffer *key_buffer;
GstMapInfo key_info;
/* new key? */
if (hlsdemux->key_url
&& strcmp (hlsdemux->key_url, hlsdemux->current_key) == 0) {
key_fragment = g_object_ref (hlsdemux->key_fragment);
} else {
g_free (hlsdemux->key_url);
hlsdemux->key_url = NULL;
if (hlsdemux->key_fragment)
g_object_unref (hlsdemux->key_fragment);
hlsdemux->key_fragment = NULL;
GST_INFO_OBJECT (demux, "Fetching key %s", hlsdemux->current_key);
key_fragment =
gst_uri_downloader_fetch_uri (demux->downloader,
hlsdemux->current_key, hlsdemux->client->main ?
hlsdemux->client->main->uri : NULL, FALSE, FALSE,
hlsdemux->client->current ? hlsdemux->client->current->
allowcache : TRUE, &err);
if (key_fragment == NULL)
goto key_failed;
hlsdemux->key_url = g_strdup (hlsdemux->current_key);
hlsdemux->key_fragment = g_object_ref (key_fragment);
}
key_buffer = gst_fragment_get_buffer (key_fragment);
gst_buffer_map (key_buffer, &key_info, GST_MAP_READ);
gst_hls_demux_decrypt_start (hlsdemux, key_info.data, hlsdemux->current_iv);
gst_buffer_unmap (key_buffer, &key_info);
gst_buffer_unref (key_buffer);
g_object_unref (key_fragment);
}
gst_hls_demux_clear_pending_data (hlsdemux);
return TRUE;
key_failed:
{
GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
("Couldn't retrieve key for decryption"), (NULL));
GST_WARNING_OBJECT (demux, "Failed to decrypt data");
return FALSE;
}
}
static gboolean
gst_hls_demux_stream_has_next_fragment (GstAdaptiveDemuxStream * stream)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (stream->demux);
return gst_m3u8_client_has_next_fragment (hlsdemux->client,
stream->demux->segment.rate > 0);
}
static gboolean
gst_hls_demux_get_live_seek_range (GstAdaptiveDemux * demux, gint64 * start,
gint64 * stop)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
return gst_m3u8_client_get_seek_range (hlsdemux->client, start, stop);
}
static gint64
gst_hls_demux_get_manifest_update_interval (GstAdaptiveDemux * demux)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
return gst_util_uint64_scale (gst_m3u8_client_get_target_duration
(hlsdemux->client), G_USEC_PER_SEC, GST_SECOND);
}
static gboolean
gst_hls_demux_process_manifest (GstAdaptiveDemux * demux, GstBuffer * buf)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
gchar *playlist = NULL;
if (hlsdemux->client)
gst_m3u8_client_free (hlsdemux->client);
hlsdemux->client =
gst_m3u8_client_new (demux->manifest_uri, demux->manifest_base_uri);
GST_INFO_OBJECT (demux, "Changed location: %s (base uri: %s)",
demux->manifest_uri, GST_STR_NULL (demux->manifest_base_uri));
playlist = gst_hls_src_buf_to_utf8_playlist (buf);
if (playlist == NULL) {
GST_WARNING_OBJECT (demux, "Error validating first playlist.");
return FALSE;
} else if (!gst_m3u8_client_update (hlsdemux->client, playlist)) {
/* In most cases, this will happen if we set a wrong url in the
* source element and we have received the 404 HTML response instead of
* the playlist */
GST_ELEMENT_ERROR (demux, STREAM, DECODE, ("Invalid playlist."), (NULL));
return FALSE;
}
/* If this playlist is a variant playlist, select the first one
* and update it */
if (gst_m3u8_client_has_variant_playlist (hlsdemux->client)) {
GstM3U8 *child = NULL;
GError *err = NULL;
if (demux->connection_speed == 0) {
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
child = hlsdemux->client->main->current_variant->data;
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
} else {
GList *tmp = gst_m3u8_client_get_playlist_for_bitrate (hlsdemux->client,
demux->connection_speed);
GST_M3U8_CLIENT_LOCK (hlsdemux->client);
hlsdemux->client->main->current_variant = tmp;
GST_M3U8_CLIENT_UNLOCK (hlsdemux->client);
child = GST_M3U8 (tmp->data);
}
gst_m3u8_client_set_current (hlsdemux->client, child);
if (!gst_hls_demux_update_playlist (hlsdemux, FALSE, &err)) {
GST_ELEMENT_ERROR_FROM_ERROR (demux, "Could not fetch the child playlist",
err);
return FALSE;
}
}
return gst_hls_demux_setup_streams (demux);
}
static GstFlowReturn
gst_hls_demux_update_manifest (GstAdaptiveDemux * demux)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
if (!gst_hls_demux_update_playlist (hlsdemux, TRUE, NULL))
return GST_FLOW_ERROR;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_hls_demux_advance_fragment (GstAdaptiveDemuxStream * stream)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (stream->demux);
gst_m3u8_client_advance_fragment (hlsdemux->client,
stream->demux->segment.rate > 0);
hlsdemux->reset_pts = FALSE;
return GST_FLOW_OK;
}
static gboolean
gst_hls_demux_setup_streams (GstAdaptiveDemux * demux)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
/* only 1 output supported */
gst_adaptive_demux_stream_new (demux, gst_hls_demux_create_pad (hlsdemux));
hlsdemux->reset_pts = TRUE;
return TRUE;
}
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_data_received (GstAdaptiveDemux * demux,
GstAdaptiveDemuxStream * stream)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
gsize available;
GstBuffer *buffer = NULL;
available = gst_adapter_available (stream->adapter);
/* Is it encrypted? */
if (hlsdemux->current_key) {
GError *err = NULL;
GstBuffer *tmp_buffer;
/* must be a multiple of 16 */
available = available & (~0xF);
if (available == 0) {
return GST_FLOW_OK;
}
buffer = gst_adapter_take_buffer (stream->adapter, available);
buffer = gst_hls_demux_decrypt_fragment (hlsdemux, buffer, &err);
if (buffer == NULL) {
GST_ELEMENT_ERROR (demux, STREAM, DECODE, ("Failed to decrypt buffer"),
("decryption failed %s", err->message));
g_error_free (err);
return GST_FLOW_ERROR;
}
tmp_buffer = hlsdemux->pending_buffer;
hlsdemux->pending_buffer = buffer;
buffer = tmp_buffer;
} else {
buffer = gst_adapter_take_buffer (stream->adapter, available);
if (hlsdemux->pending_buffer) {
buffer = gst_buffer_append (hlsdemux->pending_buffer, buffer);
hlsdemux->pending_buffer = NULL;
}
}
return gst_hls_demux_handle_buffer (demux, stream, buffer, FALSE);
}
static GstFlowReturn
gst_hls_demux_update_fragment_info (GstAdaptiveDemuxStream * stream)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (stream->demux);
gchar *next_fragment_uri;
GstClockTime duration;
GstClockTime timestamp;
gboolean discont;
gint64 range_start, range_end;
gchar *key = NULL;
guint8 *iv = NULL;
if (!gst_m3u8_client_get_next_fragment (hlsdemux->client, &discont,
&next_fragment_uri, &duration, ×tamp, &range_start, &range_end,
&key, &iv, stream->demux->segment.rate > 0)) {
GST_INFO_OBJECT (hlsdemux, "This playlist doesn't contain more fragments");
return GST_FLOW_EOS;
}
if (stream->discont)
discont = TRUE;
/* set up our source for download */
if (hlsdemux->reset_pts || discont || stream->demux->segment.rate < 0.0) {
stream->fragment.timestamp = timestamp;
} else {
stream->fragment.timestamp = GST_CLOCK_TIME_NONE;
}
g_free (hlsdemux->current_key);
hlsdemux->current_key = key;
g_free (hlsdemux->current_iv);
hlsdemux->current_iv = iv;
g_free (stream->fragment.uri);
stream->fragment.uri = next_fragment_uri;
stream->fragment.range_start = range_start;
stream->fragment.range_end = range_end;
stream->fragment.duration = duration;
if (discont)
stream->discont = discont;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_hls_demux_data_received (GstAdaptiveDemux * demux,
GstAdaptiveDemuxStream * stream, GstBuffer * buffer)
{
GstHLSDemux *hlsdemux = GST_HLS_DEMUX_CAST (demux);
if (hlsdemux->current_offset == -1)
hlsdemux->current_offset =
GST_BUFFER_OFFSET_IS_VALID (buffer) ? GST_BUFFER_OFFSET (buffer) : 0;
/* Is it encrypted? */
if (hlsdemux->current_key) {
GError *err = NULL;
gsize size;
GstBuffer *tmp_buffer;
gst_adapter_push (hlsdemux->pending_encrypted_data, buffer);
size = gst_adapter_available (hlsdemux->pending_encrypted_data);
/* must be a multiple of 16 */
size = size & (~0xF);
if (size == 0) {
return GST_FLOW_OK;
}
buffer = gst_adapter_take_buffer (hlsdemux->pending_encrypted_data, size);
buffer = gst_hls_demux_decrypt_fragment (hlsdemux, buffer, &err);
if (buffer == NULL) {
GST_ELEMENT_ERROR (demux, STREAM, DECODE, ("Failed to decrypt buffer"),
("decryption failed %s", err->message));
g_error_free (err);
return GST_FLOW_ERROR;
}
tmp_buffer = hlsdemux->pending_decrypted_buffer;
hlsdemux->pending_decrypted_buffer = buffer;
buffer = tmp_buffer;
}
return gst_hls_demux_handle_buffer (demux, stream, buffer, FALSE);
}
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;
}
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;
gboolean snap_before, snap_after, snap_nearest, keyunit;
gboolean reverse;
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_clear_pending_data (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;
reverse = rate < 0;
target_pos = reverse ? stop : start;
/* Snap to segment boundary. Improves seek performance on slow machines. */
keyunit = ! !(flags & GST_SEEK_FLAG_KEY_UNIT);
snap_nearest =
(flags & GST_SEEK_FLAG_SNAP_NEAREST) == GST_SEEK_FLAG_SNAP_NEAREST;
snap_before = ! !(flags & GST_SEEK_FLAG_SNAP_BEFORE);
snap_after = ! !(flags & GST_SEEK_FLAG_SNAP_AFTER);
/* 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 ((!reverse && snap_after) || snap_nearest) {
if (current_pos >= target_pos)
break;
if (snap_nearest && target_pos - current_pos < file->duration / 2)
break;
} else if (reverse && snap_after) {
/* check if the next fragment is our target, in this case we want to
* start from the previous fragment */
GstClockTime next_pos = current_pos + file->duration;
if (next_pos <= target_pos && target_pos < next_pos + file->duration) {
break;
}
} else 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);
/* Play from the end of the current selected segment */
if (reverse && (snap_before || snap_after || snap_nearest))
current_pos += file->duration;
if (keyunit || snap_before || snap_after || snap_nearest) {
if (!reverse)
gst_segment_do_seek (&demux->segment, rate, format, flags, start_type,
current_pos, stop_type, stop, NULL);
else
gst_segment_do_seek (&demux->segment, rate, format, flags, start_type,
start, stop_type, current_pos, NULL);
}
return TRUE;
}