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ext/faad/gstfaad.*: Do some timestamp smoothing (matroskademux apparently sends multiple buffers in a row with the sa...
Original commit message from CVS: * ext/faad/gstfaad.c: (gst_faad_base_init), (gst_faad_class_init), (gst_faad_init), (gst_faad_srcgetcaps), (gst_faad_event), (gst_faad_chain), (gst_faad_change_state): * ext/faad/gstfaad.h: Do some timestamp smoothing (matroskademux apparently sends multiple buffers in a row with the same timestamp); fix duration on outgoing buffers; fix change state function; use GST_DEBUG_FUNCPTR for pad functions.
This commit is contained in:
Tim-Philipp Müller
parent
f7d63a74e0
commit
a979bd99d1
3 changed files with 61 additions and 36 deletions
11
ChangeLog
11
ChangeLog
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@ -1,3 +1,14 @@
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2005-10-20 Tim-Philipp Müller <tim at centricular dot net>
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* ext/faad/gstfaad.c: (gst_faad_base_init), (gst_faad_class_init),
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(gst_faad_init), (gst_faad_srcgetcaps), (gst_faad_event),
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(gst_faad_chain), (gst_faad_change_state):
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* ext/faad/gstfaad.h:
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Do some timestamp smoothing (matroskademux apparently sends
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multiple buffers in a row with the same timestamp); fix
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duration on outgoing buffers; fix change state function; use
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GST_DEBUG_FUNCPTR for pad functions.
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2005-10-19 Wim Taymans <wim@fluendo.com>
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* gst/qtdemux/qtdemux.c: (gst_qtdemux_get_src_query_types),
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@ -22,6 +22,7 @@
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#endif
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#include <string.h>
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#include <gst/audio/audio.h>
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#include <gst/audio/multichannel.h>
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#include "gstfaad.h"
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@ -135,6 +136,8 @@ gst_faad_base_init (GstFaadClass * klass)
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gst_static_pad_template_get (&sink_template));
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gst_element_class_set_details (element_class, &faad_details);
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GST_DEBUG_CATEGORY_INIT (faad_debug, "faad", 0, "AAC decoding");
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}
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static void
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@ -144,9 +147,7 @@ gst_faad_class_init (GstFaadClass * klass)
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parent_class = g_type_class_peek_parent (klass);
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gstelement_class->change_state = gst_faad_change_state;
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GST_DEBUG_CATEGORY_INIT (faad_debug, "faad", 0, "AAC decoding");
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gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_faad_change_state);
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}
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static void
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@ -160,6 +161,7 @@ gst_faad_init (GstFaad * faad)
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faad->channel_positions = NULL;
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faad->init = FALSE;
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faad->next_ts = 0;
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faad->prev_ts = GST_CLOCK_TIME_NONE;
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faad->bytes_in = 0;
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faad->sum_dur_out = 0;
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faad->packetised = FALSE;
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@ -168,16 +170,20 @@ gst_faad_init (GstFaad * faad)
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gst_pad_new_from_template (gst_static_pad_template_get (&sink_template),
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"sink");
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gst_element_add_pad (GST_ELEMENT (faad), faad->sinkpad);
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gst_pad_set_event_function (faad->sinkpad, gst_faad_event);
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gst_pad_set_setcaps_function (faad->sinkpad, gst_faad_setcaps);
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gst_pad_set_chain_function (faad->sinkpad, gst_faad_chain);
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gst_pad_set_event_function (faad->sinkpad,
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GST_DEBUG_FUNCPTR (gst_faad_event));
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gst_pad_set_setcaps_function (faad->sinkpad,
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GST_DEBUG_FUNCPTR (gst_faad_setcaps));
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gst_pad_set_chain_function (faad->sinkpad,
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GST_DEBUG_FUNCPTR (gst_faad_chain));
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faad->srcpad =
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gst_pad_new_from_template (gst_static_pad_template_get (&src_template),
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"src");
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gst_element_add_pad (GST_ELEMENT (faad), faad->srcpad);
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gst_pad_use_fixed_caps (faad->srcpad);
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gst_pad_set_getcaps_function (faad->srcpad, gst_faad_srcgetcaps);
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gst_pad_set_getcaps_function (faad->srcpad,
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GST_DEBUG_FUNCPTR (gst_faad_srcgetcaps));
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}
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static gboolean
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@ -380,7 +386,7 @@ gst_faad_sinkconnect (GstPad * pad, const GstCaps * caps)
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static GstCaps *
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gst_faad_srcgetcaps (GstPad * pad)
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{
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GstFaad *faad = GST_FAAD (GST_OBJECT_PARENT (pad));
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GstFaad *faad = GST_FAAD (gst_pad_get_parent (pad));
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static GstAudioChannelPosition *supported_positions = NULL;
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static gint num_supported_positions = LFE_CHANNEL - FRONT_CHANNEL_CENTER + 1;
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GstCaps *templ;
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@ -485,7 +491,7 @@ gst_faad_srcgetcaps (GstPad * pad)
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gst_audio_set_caps_channel_positions_list (caps,
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supported_positions, num_supported_positions);
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}
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gst_object_unref (faad);
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return caps;
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}
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@ -494,6 +500,7 @@ gst_faad_srcgetcaps (GstPad * pad)
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gst_audio_set_caps_channel_positions_list (templ,
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supported_positions, num_supported_positions);
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gst_object_unref (faad);
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return templ;
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}
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@ -611,18 +618,18 @@ gst_faad_event (GstPad * pad, GstEvent * event)
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faad = GST_FAAD (gst_pad_get_parent (pad));
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GST_LOG ("handling event %d", GST_EVENT_TYPE (event));
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GST_LOG ("Handling %s event", GST_EVENT_TYPE_NAME (event));
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/* FIXME: we should probably handle FLUSH and also
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* SEEK in the case where we are not in a container
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* (when our newsegment was in BYTES) */
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_EOS:
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GST_STREAM_LOCK (pad);
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if (faad->tempbuf != NULL) {
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gst_buffer_unref (faad->tempbuf);
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faad->tempbuf = NULL;
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}
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GST_STREAM_LOCK (pad);
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res = gst_pad_push_event (faad->srcpad, event);
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GST_STREAM_UNLOCK (pad);
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break;
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@ -672,18 +679,11 @@ gst_faad_event (GstPad * pad, GstEvent * event)
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GST_STREAM_UNLOCK (pad);
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break;
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}
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case GST_EVENT_FLUSH_START:
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res = gst_pad_push_event (faad->srcpad, event);
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break;
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default:
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GST_STREAM_LOCK (pad);
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res = gst_pad_push_event (faad->srcpad, event);
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GST_STREAM_UNLOCK (pad);
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res = gst_pad_event_default (pad, event);
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break;
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}
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/* res = gst_pad_event_default (faad->sinkpad, event); */
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return res;
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}
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@ -740,14 +740,20 @@ gst_faad_chain (GstPad * pad, GstBuffer * buffer)
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void *out;
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gboolean run_loop = TRUE;
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faad = GST_FAAD (GST_OBJECT_PARENT (pad));
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faad = GST_FAAD (gst_pad_get_parent (pad));
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if (GST_BUFFER_TIMESTAMP (buffer) != GST_CLOCK_TIME_NONE) {
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/* some demuxers send multiple buffers in a row
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* with the same timestamp (e.g. matroskademux) */
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if (GST_BUFFER_TIMESTAMP (buffer) != faad->prev_ts) {
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faad->next_ts = GST_BUFFER_TIMESTAMP (buffer);
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GST_DEBUG ("Timestamp on incoming buffer: %" GST_TIME_FORMAT,
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faad->prev_ts = GST_BUFFER_TIMESTAMP (buffer);
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}
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GST_DEBUG ("Timestamp on incoming buffer: %" GST_TIME_FORMAT
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", next_ts: %" GST_TIME_FORMAT,
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GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)),
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GST_TIME_ARGS (faad->next_ts));
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}
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/* buffer + remaining data */
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if (faad->tempbuf) {
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buffer = gst_buffer_join (faad->tempbuf, buffer);
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@ -766,6 +772,7 @@ gst_faad_chain (GstPad * pad, GstBuffer * buffer)
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if (init_res < 0) {
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GST_ELEMENT_ERROR (faad, STREAM, DECODE, (NULL),
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("Failed to init decoder from stream"));
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gst_object_unref (faad);
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return GST_FLOW_UNEXPECTED;
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}
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skip_bytes = init_res;
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@ -838,22 +845,20 @@ gst_faad_chain (GstPad * pad, GstBuffer * buffer)
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/* play decoded data */
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if (info.samples > 0 && GST_PAD_PEER (faad->srcpad)) {
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GstFlowReturn r;
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guint bufsize = info.samples * faad->bps;
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guint num_samples = info.samples / faad->channels;
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/* note: info.samples is total samples, not per channel */
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r = gst_pad_alloc_buffer (faad->srcpad, 0, bufsize, caps, &outbuf);
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if (r != GST_FLOW_OK) {
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GST_DEBUG ("Failed to allocate buffer");
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ret = r; //GST_FLOW_OK; /* CHECK: or return something else? */
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ret = gst_pad_alloc_buffer (faad->srcpad, 0, bufsize, caps, &outbuf);
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if (ret != GST_FLOW_OK)
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goto out;
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}
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memcpy (GST_BUFFER_DATA (outbuf), out, GST_BUFFER_SIZE (outbuf));
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GST_BUFFER_OFFSET (outbuf) =
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(faad->next_ts * faad->samplerate) / GST_SECOND;
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GST_CLOCK_TIME_TO_FRAMES (faad->next_ts, faad->samplerate);
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GST_BUFFER_TIMESTAMP (outbuf) = faad->next_ts;
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GST_BUFFER_DURATION (outbuf) = (guint64) GST_SECOND *info.samples / (faad->samplerate * 2); ///////// over 2?
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GST_BUFFER_DURATION (outbuf) =
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GST_FRAMES_TO_CLOCK_TIME (num_samples, faad->samplerate);
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faad->next_ts += GST_BUFFER_DURATION (outbuf);
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faad->sum_dur_out += GST_BUFFER_DURATION (outbuf);
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@ -887,6 +892,7 @@ out:
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gst_caps_unref (caps);
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gst_buffer_unref (buffer);
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gst_object_unref (faad);
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return ret;
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}
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@ -894,6 +900,7 @@ out:
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static GstStateChangeReturn
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gst_faad_change_state (GstElement * element, GstStateChange transition)
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{
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GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
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GstFaad *faad = GST_FAAD (element);
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switch (transition) {
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@ -913,6 +920,14 @@ gst_faad_change_state (GstElement * element, GstStateChange transition)
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}
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break;
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}
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default:
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break;
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}
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if (GST_ELEMENT_CLASS (parent_class)->change_state)
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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switch (transition) {
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case GST_STATE_CHANGE_PAUSED_TO_READY:
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faad->samplerate = -1;
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faad->channels = -1;
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@ -921,6 +936,7 @@ gst_faad_change_state (GstElement * element, GstStateChange transition)
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g_free (faad->channel_positions);
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faad->channel_positions = NULL;
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faad->next_ts = 0;
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faad->prev_ts = GST_CLOCK_TIME_NONE;
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break;
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case GST_STATE_CHANGE_READY_TO_NULL:
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faacDecClose (faad->handle);
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@ -934,10 +950,7 @@ gst_faad_change_state (GstElement * element, GstStateChange transition)
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break;
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}
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if (GST_ELEMENT_CLASS (parent_class)->change_state)
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return GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
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return GST_STATE_CHANGE_SUCCESS;
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return ret;
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}
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static gboolean
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@ -57,7 +57,8 @@ typedef struct _GstFaad {
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gboolean need_channel_setup;
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gboolean packetised; /* We must differentiate between raw and packetised streams */
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guint64 next_ts; /* timestamp of next buffer */
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gint64 prev_ts; /* timestamp of previous buffer */
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gint64 next_ts; /* timestamp of next buffer */
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guint64 bytes_in; /* bytes received */
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guint64 sum_dur_out; /* sum of durations of decoded buffers we sent out */
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} GstFaad;
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