/* * Initially based on gst-omx/omx/gstomxvideodec.c * * Copyright (C) 2011, Hewlett-Packard Development Company, L.P. * Author: Sebastian Dröge , Collabora Ltd. * * Copyright (C) 2012, Collabora Ltd. * Author: Sebastian Dröge * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation * version 2.1 of the License. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include "gstamcaudiodec.h" #include "gstamc-constants.h" GST_DEBUG_CATEGORY_STATIC (gst_amc_audio_dec_debug_category); #define GST_CAT_DEFAULT gst_amc_audio_dec_debug_category /* prototypes */ static void gst_amc_audio_dec_finalize (GObject * object); static GstStateChangeReturn gst_amc_audio_dec_change_state (GstElement * element, GstStateChange transition); static gboolean gst_amc_audio_dec_open (GstAudioDecoder * decoder); static gboolean gst_amc_audio_dec_close (GstAudioDecoder * decoder); static gboolean gst_amc_audio_dec_start (GstAudioDecoder * decoder); static gboolean gst_amc_audio_dec_stop (GstAudioDecoder * decoder); static gboolean gst_amc_audio_dec_set_format (GstAudioDecoder * decoder, GstCaps * caps); static void gst_amc_audio_dec_flush (GstAudioDecoder * decoder, gboolean hard); static GstFlowReturn gst_amc_audio_dec_handle_frame (GstAudioDecoder * decoder, GstBuffer * buffer); static GstFlowReturn gst_amc_audio_dec_drain (GstAmcAudioDec * self); enum { PROP_0 }; /* class initialization */ #define DEBUG_INIT(bla) \ GST_DEBUG_CATEGORY_INIT (gst_amc_audio_dec_debug_category, "amcaudiodec", 0, \ "Android MediaCodec audio decoder"); GST_BOILERPLATE_FULL (GstAmcAudioDec, gst_amc_audio_dec, GstAudioDecoder, GST_TYPE_AUDIO_DECODER, DEBUG_INIT); static GstCaps * create_sink_caps (const GstAmcCodecInfo * codec_info) { GstCaps *ret; gint i; ret = gst_caps_new_empty (); for (i = 0; i < codec_info->n_supported_types; i++) { const GstAmcCodecType *type = &codec_info->supported_types[i]; if (strcmp (type->mime, "audio/mpeg") == 0) { GstStructure *tmp; tmp = gst_structure_new ("audio/mpeg", "mpegversion", G_TYPE_INT, 1, "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT, "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, "parsed", G_TYPE_BOOLEAN, TRUE, NULL); gst_caps_append_structure (ret, tmp); } else if (strcmp (type->mime, "audio/3gpp") == 0) { GstStructure *tmp; tmp = gst_structure_new ("audio/AMR", "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT, "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL); gst_caps_append_structure (ret, tmp); } else if (strcmp (type->mime, "audio/amr-wb") == 0) { GstStructure *tmp; tmp = gst_structure_new ("audio/AMR-WB", "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT, "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL); gst_caps_append_structure (ret, tmp); } else if (strcmp (type->mime, "audio/mp4a-latm") == 0) { gint j; GstStructure *tmp, *tmp2; gboolean have_profile = FALSE; GValue va = { 0, }; GValue v = { 0, }; g_value_init (&va, GST_TYPE_LIST); g_value_init (&v, G_TYPE_STRING); g_value_set_string (&v, "raw"); gst_value_list_append_value (&va, &v); g_value_set_string (&v, "adts"); gst_value_list_append_value (&va, &v); g_value_unset (&v); /* FIXME: Both mpegversions? */ tmp = gst_structure_new ("audio/mpeg", "mpegversion", GST_TYPE_INT_RANGE, 2, 4, "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT, "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, "framed", G_TYPE_BOOLEAN, TRUE, NULL); gst_structure_set_value (tmp, "stream-format", &va); g_value_unset (&va); for (j = 0; j < type->n_profile_levels; j++) { const gchar *profile; profile = gst_amc_aac_profile_to_string (type->profile_levels[j].profile); if (!profile) { GST_ERROR ("Unable to map AAC profile 0x%08x", type->profile_levels[j].profile); continue; } tmp2 = gst_structure_copy (tmp); gst_structure_set (tmp2, "profile", G_TYPE_STRING, profile, NULL); gst_caps_append_structure (ret, tmp2); have_profile = TRUE; } if (!have_profile) { gst_caps_append_structure (ret, tmp); } else { gst_structure_free (tmp); } } else if (strcmp (type->mime, "audio/g711-alaw") == 0) { GstStructure *tmp; tmp = gst_structure_new ("audio/x-alaw", "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT, "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL); gst_caps_append_structure (ret, tmp); } else if (strcmp (type->mime, "audio/g711-mlaw") == 0) { GstStructure *tmp; tmp = gst_structure_new ("audio/x-mulaw", "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT, "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL); gst_caps_append_structure (ret, tmp); } else if (strcmp (type->mime, "audio/vorbis") == 0) { GstStructure *tmp; tmp = gst_structure_new ("audio/x-vorbis", "rate", GST_TYPE_INT_RANGE, 1, G_MAXINT, "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL); gst_caps_append_structure (ret, tmp); } else { GST_WARNING ("Unsupported mimetype '%s'", type->mime); } } return ret; } static const gchar * caps_to_mime (GstCaps * caps) { GstStructure *s; const gchar *name; s = gst_caps_get_structure (caps, 0); if (!s) return NULL; name = gst_structure_get_name (s); if (strcmp (name, "audio/mpeg") == 0) { gint mpegversion; if (!gst_structure_get_int (s, "mpegversion", &mpegversion)) return NULL; if (mpegversion == 1) return "audio/mpeg"; else if (mpegversion == 2 || mpegversion == 4) return "audio/mp4a-latm"; } else if (strcmp (name, "audio/AMR") == 0) { return "audio/3gpp"; } else if (strcmp (name, "audio/AMR-WB") == 0) { return "audio/amr-wb"; } else if (strcmp (name, "audio/x-alaw") == 0) { return "audio/g711-alaw"; } else if (strcmp (name, "audio/x-mulaw") == 0) { return "audio/g711-mlaw"; } else if (strcmp (name, "audio/x-vorbis") == 0) { return "audio/x-vorbis"; } return NULL; } static GstCaps * create_src_caps (const GstAmcCodecInfo * codec_info) { GstCaps *ret; ret = gst_caps_new_simple ("audio/x-raw-int", "rate", GST_TYPE_INT_RANGE, 0, G_MAXINT, "channels", GST_TYPE_INT_RANGE, 1, 32, "width", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16, "signed", G_TYPE_BOOLEAN, TRUE, "endianness", G_TYPE_INT, G_BYTE_ORDER, NULL); return ret; } static void gst_amc_audio_dec_base_init (gpointer g_class) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); GstAmcAudioDecClass *audiodec_class = GST_AMC_AUDIO_DEC_CLASS (g_class); const GstAmcCodecInfo *codec_info; GstPadTemplate *templ; GstCaps *caps; gchar *longname; codec_info = g_type_get_qdata (G_TYPE_FROM_CLASS (g_class), gst_amc_codec_info_quark); /* This happens for the base class and abstract subclasses */ if (!codec_info) return; audiodec_class->codec_info = codec_info; /* Add pad templates */ caps = create_sink_caps (codec_info); templ = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps); gst_element_class_add_pad_template (element_class, templ); gst_object_unref (templ); caps = create_src_caps (codec_info); templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps); gst_element_class_add_pad_template (element_class, templ); gst_object_unref (templ); longname = g_strdup_printf ("Android MediaCodec %s", codec_info->name); gst_element_class_set_details_simple (element_class, codec_info->name, "Codec/Decoder/Audio", longname, "Sebastian Dröge "); g_free (longname); } static void gst_amc_audio_dec_class_init (GstAmcAudioDecClass * klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstAudioDecoderClass *audiodec_class = GST_AUDIO_DECODER_CLASS (klass); gobject_class->finalize = gst_amc_audio_dec_finalize; element_class->change_state = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_change_state); audiodec_class->start = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_start); audiodec_class->stop = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_stop); #if 0 audiodec_class->open = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_open); audiodec_class->close = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_close); #endif audiodec_class->flush = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_flush); audiodec_class->set_format = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_set_format); audiodec_class->handle_frame = GST_DEBUG_FUNCPTR (gst_amc_audio_dec_handle_frame); } static void gst_amc_audio_dec_init (GstAmcAudioDec * self, GstAmcAudioDecClass * klass) { gst_audio_decoder_set_needs_format (GST_AUDIO_DECODER (self), TRUE); gst_audio_decoder_set_drainable (GST_AUDIO_DECODER (self), TRUE); self->drain_lock = g_mutex_new (); self->drain_cond = g_cond_new (); } static gboolean gst_amc_audio_dec_open (GstAudioDecoder * decoder) { GstAmcAudioDec *self = GST_AMC_AUDIO_DEC (decoder); GstAmcAudioDecClass *klass = GST_AMC_AUDIO_DEC_GET_CLASS (self); GST_DEBUG_OBJECT (self, "Opening decoder"); self->codec = gst_amc_codec_new (klass->codec_info->name); if (!self->codec) return FALSE; self->started = FALSE; self->flushing = TRUE; GST_DEBUG_OBJECT (self, "Opened decoder"); return TRUE; } static gboolean gst_amc_audio_dec_close (GstAudioDecoder * decoder) { GstAmcAudioDec *self = GST_AMC_AUDIO_DEC (decoder); GST_DEBUG_OBJECT (self, "Closing decoder"); if (self->codec) { /* FIXME: This crashes for some reason, looks like the * MediaCodec API is not threadsafe between stop() and * release() */ #if 0 gst_amc_codec_release (self->codec); #endif gst_amc_codec_free (self->codec); } self->codec = NULL; self->started = FALSE; self->flushing = TRUE; GST_DEBUG_OBJECT (self, "Closed decoder"); return TRUE; } static void gst_amc_audio_dec_finalize (GObject * object) { GstAmcAudioDec *self = GST_AMC_AUDIO_DEC (object); g_mutex_free (self->drain_lock); g_cond_free (self->drain_cond); G_OBJECT_CLASS (parent_class)->finalize (object); } static GstStateChangeReturn gst_amc_audio_dec_change_state (GstElement * element, GstStateChange transition) { GstAmcAudioDec *self; GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; g_return_val_if_fail (GST_IS_AMC_AUDIO_DEC (element), GST_STATE_CHANGE_FAILURE); self = GST_AMC_AUDIO_DEC (element); switch (transition) { case GST_STATE_CHANGE_NULL_TO_READY: break; case GST_STATE_CHANGE_READY_TO_PAUSED: self->downstream_flow_ret = GST_FLOW_OK; self->draining = FALSE; self->started = FALSE; if (!gst_amc_audio_dec_open (GST_AUDIO_DECODER (self))) return GST_STATE_CHANGE_FAILURE; break; case GST_STATE_CHANGE_PAUSED_TO_PLAYING: break; case GST_STATE_CHANGE_PAUSED_TO_READY: self->flushing = TRUE; gst_amc_codec_flush (self->codec); g_mutex_lock (self->drain_lock); self->draining = FALSE; g_cond_broadcast (self->drain_cond); g_mutex_unlock (self->drain_lock); break; default: break; } if (ret == GST_STATE_CHANGE_FAILURE) return ret; ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); if (ret == GST_STATE_CHANGE_FAILURE) return ret; switch (transition) { case GST_STATE_CHANGE_PLAYING_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_READY: if (!gst_amc_audio_dec_close (GST_AUDIO_DECODER (self))) return GST_STATE_CHANGE_FAILURE; self->downstream_flow_ret = GST_FLOW_WRONG_STATE; self->started = FALSE; break; case GST_STATE_CHANGE_READY_TO_NULL: break; default: break; } return ret; } static gboolean gst_amc_audio_dec_set_src_caps (GstAmcAudioDec * self, GstAmcFormat * format) { GstCaps *caps; gint rate, channels; guint32 channel_mask = 0; if (!gst_amc_format_get_int (format, "sample-rate", &rate) || !gst_amc_format_get_int (format, "channel-count", &channels)) { GST_ERROR_OBJECT (self, "Failed to get output format metadata"); return FALSE; } /* Not always present */ gst_amc_format_get_int (format, "channel-mask", (gint *) & channel_mask); if (self->positions) g_free (self->positions); self->positions = gst_amc_audio_channel_mask_to_positions (channel_mask, channels); caps = gst_caps_new_simple ("audio/x-raw-int", "rate", G_TYPE_INT, rate, "channels", G_TYPE_INT, channels, "width", G_TYPE_INT, 16, "depth", G_TYPE_INT, 16, "signed", G_TYPE_BOOLEAN, TRUE, "endianness", G_TYPE_INT, G_BYTE_ORDER, NULL); if (self->positions) gst_audio_set_channel_positions (gst_caps_get_structure (caps, 0), self->positions); gst_pad_set_caps (GST_AUDIO_DECODER_SRC_PAD (self), caps); gst_caps_unref (caps); self->input_caps_changed = FALSE; return TRUE; } static void gst_amc_audio_dec_loop (GstAmcAudioDec * self) { GstFlowReturn flow_ret = GST_FLOW_OK; gboolean is_eos; GstAmcBufferInfo buffer_info; gint idx; GST_AUDIO_DECODER_STREAM_LOCK (self); retry: /*if (self->input_caps_changed) { idx = INFO_OUTPUT_FORMAT_CHANGED; } else { */ GST_DEBUG_OBJECT (self, "Waiting for available output buffer"); GST_AUDIO_DECODER_STREAM_UNLOCK (self); idx = gst_amc_codec_dequeue_output_buffer (self->codec, &buffer_info, -1); GST_AUDIO_DECODER_STREAM_LOCK (self); /*} */ if (idx < 0) { if (self->flushing) goto flushing; switch (idx) { case INFO_OUTPUT_BUFFERS_CHANGED:{ GST_DEBUG_OBJECT (self, "Output buffers have changed"); if (self->output_buffers) gst_amc_codec_free_buffers (self->output_buffers, self->n_output_buffers); self->output_buffers = gst_amc_codec_get_output_buffers (self->codec, &self->n_output_buffers); if (!self->output_buffers) goto get_output_buffers_error; break; } case INFO_OUTPUT_FORMAT_CHANGED:{ GstAmcFormat *format; gchar *format_string; GST_DEBUG_OBJECT (self, "Output format has changed"); format = gst_amc_codec_get_output_format (self->codec); if (!format) goto format_error; format_string = gst_amc_format_to_string (format); GST_DEBUG_OBJECT (self, "Got new output format: %s", format_string); g_free (format_string); if (!gst_amc_audio_dec_set_src_caps (self, format)) { gst_amc_format_free (format); goto format_error; } gst_amc_format_free (format); if (self->output_buffers) gst_amc_codec_free_buffers (self->output_buffers, self->n_output_buffers); self->output_buffers = gst_amc_codec_get_output_buffers (self->codec, &self->n_output_buffers); if (!self->output_buffers) goto get_output_buffers_error; goto retry; break; } case INFO_TRY_AGAIN_LATER: GST_DEBUG_OBJECT (self, "Dequeueing output buffer timed out"); goto retry; break; case G_MININT: GST_ERROR_OBJECT (self, "Failure dequeueing input buffer"); goto dequeue_error; break; default: g_assert_not_reached (); break; } goto retry; } GST_DEBUG_OBJECT (self, "Got output buffer at index %d: size %d time %" G_GINT64_FORMAT " flags 0x%08x", idx, buffer_info.size, buffer_info.presentation_time_us, buffer_info.flags); is_eos = ! !(buffer_info.flags & BUFFER_FLAG_END_OF_STREAM); if (buffer_info.size > 0) { GstBuffer *outbuf; GstAmcBuffer *buf; gint nframes; /* This sometimes happens at EOS or if the input is not properly framed, * let's handle it gracefully by allocating a new buffer for the current * caps and filling it */ GST_ERROR_OBJECT (self, "No corresponding frame found"); if (idx >= self->n_input_buffers) goto invalid_buffer_index; outbuf = gst_buffer_try_new_and_alloc (buffer_info.size); if (!outbuf) goto failed_allocate; buf = &self->output_buffers[idx]; memcpy (GST_BUFFER_DATA (outbuf), buf->data + buffer_info.offset, buffer_info.size); GST_BUFFER_TIMESTAMP (outbuf) = gst_util_uint64_scale (buffer_info.presentation_time_us, GST_USECOND, GST_SECOND); nframes = buffer_info.size / (self->channels * 2); flow_ret = gst_audio_decoder_finish_frame (GST_AUDIO_DECODER (self), outbuf, nframes); } if (is_eos || flow_ret == GST_FLOW_UNEXPECTED) { GST_AUDIO_DECODER_STREAM_UNLOCK (self); g_mutex_lock (self->drain_lock); if (self->draining) { GST_DEBUG_OBJECT (self, "Drained"); self->draining = FALSE; g_cond_broadcast (self->drain_cond); } else if (flow_ret == GST_FLOW_OK) { GST_DEBUG_OBJECT (self, "Component signalled EOS"); flow_ret = GST_FLOW_UNEXPECTED; } g_mutex_unlock (self->drain_lock); GST_AUDIO_DECODER_STREAM_LOCK (self); } else { GST_DEBUG_OBJECT (self, "Finished frame: %s", gst_flow_get_name (flow_ret)); } if (!gst_amc_codec_release_output_buffer (self->codec, idx)) goto failed_release; self->downstream_flow_ret = flow_ret; if (flow_ret != GST_FLOW_OK) goto flow_error; GST_AUDIO_DECODER_STREAM_UNLOCK (self); return; dequeue_error: { GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), ("Failed to dequeue output buffer")); gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_ERROR; GST_AUDIO_DECODER_STREAM_UNLOCK (self); return; } get_output_buffers_error: { GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), ("Failed to get output buffers")); gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_ERROR; GST_AUDIO_DECODER_STREAM_UNLOCK (self); return; } format_error: { GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), ("Failed to handle format")); gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_ERROR; GST_AUDIO_DECODER_STREAM_UNLOCK (self); return; } failed_release: { GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), ("Failed to release output buffer index %d", idx)); gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_ERROR; GST_AUDIO_DECODER_STREAM_UNLOCK (self); return; } flushing: { GST_DEBUG_OBJECT (self, "Flushing -- stopping task"); gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_WRONG_STATE; GST_AUDIO_DECODER_STREAM_UNLOCK (self); return; } flow_error: { if (flow_ret == GST_FLOW_UNEXPECTED) { GST_DEBUG_OBJECT (self, "EOS"); gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self)); } else if (flow_ret == GST_FLOW_NOT_LINKED || flow_ret < GST_FLOW_UNEXPECTED) { GST_ELEMENT_ERROR (self, STREAM, FAILED, ("Internal data stream error."), ("stream stopped, reason %s", gst_flow_get_name (flow_ret))); gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self)); } GST_AUDIO_DECODER_STREAM_UNLOCK (self); return; } invalid_buffer_index: { GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), ("Invalid input buffer index %d of %d", idx, self->n_input_buffers)); gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_ERROR; GST_AUDIO_DECODER_STREAM_UNLOCK (self); return; } failed_allocate: { GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL), ("Failed to allocate output buffer")); gst_pad_push_event (GST_AUDIO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_AUDIO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_ERROR; GST_AUDIO_DECODER_STREAM_UNLOCK (self); return; } } static gboolean gst_amc_audio_dec_start (GstAudioDecoder * decoder) { GstAmcAudioDec *self; self = GST_AMC_AUDIO_DEC (decoder); self->last_upstream_ts = 0; self->eos = FALSE; self->downstream_flow_ret = GST_FLOW_OK; self->started = FALSE; self->flushing = TRUE; return TRUE; } static gboolean gst_amc_audio_dec_stop (GstAudioDecoder * decoder) { GstAmcAudioDec *self; self = GST_AMC_AUDIO_DEC (decoder); GST_DEBUG_OBJECT (self, "Stopping decoder"); gst_pad_stop_task (GST_AUDIO_DECODER_SRC_PAD (decoder)); if (self->started) { gst_amc_codec_flush (self->codec); gst_amc_codec_stop (self->codec); self->started = FALSE; if (self->input_buffers) gst_amc_codec_free_buffers (self->input_buffers, self->n_input_buffers); self->input_buffers = NULL; if (self->output_buffers) gst_amc_codec_free_buffers (self->output_buffers, self->n_output_buffers); self->output_buffers = NULL; } g_free (self->positions); self->positions = NULL; g_list_foreach (self->codec_datas, (GFunc) gst_buffer_unref, NULL); g_list_free (self->codec_datas); self->codec_datas = NULL; self->downstream_flow_ret = GST_FLOW_WRONG_STATE; self->eos = FALSE; g_mutex_lock (self->drain_lock); self->draining = FALSE; g_cond_broadcast (self->drain_cond); g_mutex_unlock (self->drain_lock); gst_buffer_replace (&self->codec_data, NULL); self->flushing = TRUE; GST_DEBUG_OBJECT (self, "Stopped decoder"); return TRUE; } static gboolean gst_amc_audio_dec_set_format (GstAudioDecoder * decoder, GstCaps * caps) { GstAmcAudioDec *self; GstStructure *s; GstAmcFormat *format; const gchar *mime; gboolean is_format_change = FALSE; gboolean needs_disable = FALSE; gchar *format_string; gint rate, channels; self = GST_AMC_AUDIO_DEC (decoder); GST_DEBUG_OBJECT (self, "Setting new caps %" GST_PTR_FORMAT, caps); /* Check if the caps change is a real format change or if only irrelevant * parts of the caps have changed or nothing at all. */ is_format_change |= (!self->input_caps || !gst_caps_is_equal (self->input_caps, caps)); needs_disable = self->started; /* If the component is not started and a real format change happens * we have to restart the component. If no real format change * happened we can just exit here. */ if (needs_disable && !is_format_change) { /* Framerate or something minor changed */ self->input_caps_changed = TRUE; GST_DEBUG_OBJECT (self, "Already running and caps did not change the format"); return TRUE; } if (needs_disable && is_format_change) { gst_amc_audio_dec_drain (self); GST_AUDIO_DECODER_STREAM_UNLOCK (self); gst_amc_audio_dec_stop (GST_AUDIO_DECODER (self)); GST_AUDIO_DECODER_STREAM_LOCK (self); } /* srcpad task is not running at this point */ mime = caps_to_mime (caps); if (!mime) { GST_ERROR_OBJECT (self, "Failed to convert caps to mime"); return FALSE; } s = gst_caps_get_structure (caps, 0); if (!gst_structure_get_int (s, "rate", &rate) || !gst_structure_get_int (s, "channels", &channels)) { GST_ERROR_OBJECT (self, "Failed to get rate/channels"); return FALSE; } format = gst_amc_format_new_audio (mime, rate, channels); if (!format) { GST_ERROR_OBJECT (self, "Failed to create audio format"); return FALSE; } /* FIXME: These buffers needs to be valid until the codec is stopped again */ g_list_foreach (self->codec_datas, (GFunc) gst_buffer_unref, NULL); g_list_free (self->codec_datas); self->codec_datas = NULL; if (gst_structure_has_field (s, "codec_data")) { const GValue *h = gst_structure_get_value (s, "codec_data"); GstBuffer *codec_data = gst_value_get_buffer (h); self->codec_datas = g_list_prepend (self->codec_datas, gst_buffer_ref (codec_data)); gst_amc_format_set_buffer (format, "csd-0", codec_data); } else if (gst_structure_has_field (s, "streamheader")) { const GValue *sh = gst_structure_get_value (s, "streamheader"); gint nsheaders = gst_value_array_get_size (sh); GstBuffer *buf; const GValue *h; gint i; gchar *fname; for (i = 0; i < nsheaders; i++) { h = gst_value_array_get_value (sh, i); buf = gst_value_get_buffer (h); fname = g_strdup_printf ("csd-%d", i); self->codec_datas = g_list_prepend (self->codec_datas, gst_buffer_ref (buf)); gst_amc_format_set_buffer (format, fname, buf); g_free (fname); } } format_string = gst_amc_format_to_string (format); GST_DEBUG_OBJECT (self, "Configuring codec with format: %s", format_string); g_free (format_string); /* FIXME: Flags? */ if (!gst_amc_codec_configure (self->codec, format, 0)) { GST_ERROR_OBJECT (self, "Failed to configure codec"); return FALSE; } gst_amc_format_free (format); if (!gst_amc_codec_start (self->codec)) { GST_ERROR_OBJECT (self, "Failed to start codec"); return FALSE; } if (self->input_buffers) gst_amc_codec_free_buffers (self->input_buffers, self->n_input_buffers); self->input_buffers = gst_amc_codec_get_input_buffers (self->codec, &self->n_input_buffers); if (!self->input_buffers) { GST_ERROR_OBJECT (self, "Failed to get input buffers"); return FALSE; } self->started = TRUE; self->input_caps_changed = TRUE; /* Start the srcpad loop again */ self->flushing = FALSE; self->downstream_flow_ret = GST_FLOW_OK; gst_pad_start_task (GST_AUDIO_DECODER_SRC_PAD (self), (GstTaskFunction) gst_amc_audio_dec_loop, decoder); return TRUE; } static void gst_amc_audio_dec_flush (GstAudioDecoder * decoder, gboolean hard) { GstAmcAudioDec *self; self = GST_AMC_AUDIO_DEC (decoder); GST_DEBUG_OBJECT (self, "Resetting decoder"); if (!self->started) { GST_DEBUG_OBJECT (self, "Codec not started yet"); return; } gst_amc_audio_dec_drain (self); self->flushing = TRUE; gst_amc_codec_flush (self->codec); self->flushing = FALSE; /* Wait until the srcpad loop is finished, * unlock GST_AUDIO_DECODER_STREAM_LOCK to prevent deadlocks * caused by using this lock from inside the loop function */ GST_AUDIO_DECODER_STREAM_UNLOCK (self); GST_PAD_STREAM_LOCK (GST_AUDIO_DECODER_SRC_PAD (self)); GST_PAD_STREAM_UNLOCK (GST_AUDIO_DECODER_SRC_PAD (self)); GST_AUDIO_DECODER_STREAM_LOCK (self); /* Start the srcpad loop again */ self->last_upstream_ts = 0; self->eos = FALSE; self->downstream_flow_ret = GST_FLOW_OK; gst_pad_start_task (GST_AUDIO_DECODER_SRC_PAD (self), (GstTaskFunction) gst_amc_audio_dec_loop, decoder); GST_DEBUG_OBJECT (self, "Reset decoder"); } static GstFlowReturn gst_amc_audio_dec_handle_frame (GstAudioDecoder * decoder, GstBuffer * inbuf) { GstAmcAudioDec *self; gint idx; GstAmcBuffer *buf; GstAmcBufferInfo buffer_info; guint offset = 0; GstClockTime timestamp, duration, timestamp_offset = 0; self = GST_AMC_AUDIO_DEC (decoder); GST_DEBUG_OBJECT (self, "Handling frame"); if (!self->started) { GST_ERROR_OBJECT (self, "Codec not started yet"); if (inbuf) gst_buffer_unref (inbuf); return GST_FLOW_NOT_NEGOTIATED; } if (self->eos) { GST_WARNING_OBJECT (self, "Got frame after EOS"); if (inbuf) gst_buffer_unref (inbuf); return GST_FLOW_UNEXPECTED; } if (self->flushing) goto flushing; if (self->downstream_flow_ret != GST_FLOW_OK) goto downstream_error; if (!inbuf) return gst_amc_audio_dec_drain (self); timestamp = GST_BUFFER_TIMESTAMP (inbuf); duration = GST_BUFFER_DURATION (inbuf); while (offset < GST_BUFFER_SIZE (inbuf)) { /* Make sure to release the base class stream lock, otherwise * _loop() can't call _finish_frame() and we might block forever * because no input buffers are released */ GST_AUDIO_DECODER_STREAM_UNLOCK (self); idx = gst_amc_codec_dequeue_input_buffer (self->codec, -1); GST_AUDIO_DECODER_STREAM_LOCK (self); if (idx < 0) { if (self->flushing) goto flushing; switch (idx) { case INFO_TRY_AGAIN_LATER: GST_DEBUG_OBJECT (self, "Dequeueing input buffer timed out"); continue; /* next try */ break; case G_MININT: GST_ERROR_OBJECT (self, "Failed to dequeue input buffer"); goto dequeue_error; default: g_assert_not_reached (); break; } continue; } if (idx >= self->n_input_buffers) goto invalid_buffer_index; if (self->flushing) goto flushing; if (self->downstream_flow_ret != GST_FLOW_OK) { memset (&buffer_info, 0, sizeof (buffer_info)); gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info); goto downstream_error; } /* Now handle the frame */ /* Copy the buffer content in chunks of size as requested * by the port */ buf = &self->input_buffers[idx]; memset (&buffer_info, 0, sizeof (buffer_info)); buffer_info.offset = 0; buffer_info.size = MIN (GST_BUFFER_SIZE (inbuf) - offset, buf->size); memcpy (buf->data, GST_BUFFER_DATA (inbuf) + offset, buffer_info.size); /* Interpolate timestamps if we're passing the buffer * in multiple chunks */ if (offset != 0 && duration != GST_CLOCK_TIME_NONE) { timestamp_offset = gst_util_uint64_scale (offset, duration, GST_BUFFER_SIZE (inbuf)); } if (timestamp != GST_CLOCK_TIME_NONE) { buffer_info.presentation_time_us = gst_util_uint64_scale (timestamp + timestamp_offset, 1, GST_USECOND); self->last_upstream_ts = timestamp + timestamp_offset; } if (duration != GST_CLOCK_TIME_NONE) self->last_upstream_ts += duration; if (offset == 0) { if (!GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_DELTA_UNIT)) buffer_info.flags |= BUFFER_FLAG_SYNC_FRAME; } offset += buffer_info.size; GST_DEBUG_OBJECT (self, "Queueing buffer %d: size %d time %" G_GINT64_FORMAT " flags 0x%08x", idx, buffer_info.size, buffer_info.presentation_time_us, buffer_info.flags); if (!gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info)) goto queue_error; } gst_buffer_unref (inbuf); return self->downstream_flow_ret; downstream_error: { GST_ERROR_OBJECT (self, "Downstream returned %s", gst_flow_get_name (self->downstream_flow_ret)); gst_buffer_unref (inbuf); return self->downstream_flow_ret; } invalid_buffer_index: { GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), ("Invalid input buffer index %d of %d", idx, self->n_input_buffers)); gst_buffer_unref (inbuf); return GST_FLOW_ERROR; } dequeue_error: { GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), ("Failed to dequeue input buffer")); gst_buffer_unref (inbuf); return GST_FLOW_ERROR; } queue_error: { GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), ("Failed to queue input buffer")); gst_buffer_unref (inbuf); return GST_FLOW_ERROR; } flushing: { GST_DEBUG_OBJECT (self, "Flushing -- returning WRONG_STATE"); gst_buffer_unref (inbuf); return GST_FLOW_WRONG_STATE; } } static GstFlowReturn gst_amc_audio_dec_drain (GstAmcAudioDec * self) { GstFlowReturn ret; gint idx; GST_DEBUG_OBJECT (self, "Draining codec"); if (!self->started) { GST_DEBUG_OBJECT (self, "Codec not started yet"); return GST_FLOW_OK; } /* Don't send EOS buffer twice, this doesn't work */ if (self->eos) { GST_DEBUG_OBJECT (self, "Codec is EOS already"); return GST_FLOW_OK; } /* Make sure to release the base class stream lock, otherwise * _loop() can't call _finish_frame() and we might block forever * because no input buffers are released */ GST_AUDIO_DECODER_STREAM_UNLOCK (self); /* Send an EOS buffer to the component and let the base * class drop the EOS event. We will send it later when * the EOS buffer arrives on the output port. * Wait at most 0.5s here. */ idx = gst_amc_codec_dequeue_input_buffer (self->codec, 500000); GST_AUDIO_DECODER_STREAM_LOCK (self); if (idx >= 0 && idx < self->n_input_buffers) { GstAmcBufferInfo buffer_info; GST_AUDIO_DECODER_STREAM_UNLOCK (self); g_mutex_lock (self->drain_lock); self->draining = TRUE; memset (&buffer_info, 0, sizeof (buffer_info)); buffer_info.size = 0; buffer_info.presentation_time_us = gst_util_uint64_scale (self->last_upstream_ts, 1, GST_USECOND); buffer_info.flags |= BUFFER_FLAG_END_OF_STREAM; if (gst_amc_codec_queue_input_buffer (self->codec, idx, &buffer_info)) { GST_DEBUG_OBJECT (self, "Waiting until codec is drained"); g_cond_wait (self->drain_cond, self->drain_lock); GST_DEBUG_OBJECT (self, "Drained codec"); ret = GST_FLOW_OK; } else { GST_ERROR_OBJECT (self, "Failed to queue input buffer"); ret = GST_FLOW_ERROR; } g_mutex_unlock (self->drain_lock); GST_AUDIO_DECODER_STREAM_LOCK (self); } else if (idx >= self->n_input_buffers) { GST_ERROR_OBJECT (self, "Invalid input buffer index %d of %d", idx, self->n_input_buffers); ret = GST_FLOW_ERROR; } else { GST_ERROR_OBJECT (self, "Failed to acquire buffer for EOS: %d", idx); ret = GST_FLOW_ERROR; } return ret; }