/* * Copyright (C) 2011, Hewlett-Packard Development Company, L.P. * Author: Sebastian Dröge , Collabora Ltd. * * 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 #include "gstomxvideodec.h" GST_DEBUG_CATEGORY_STATIC (gst_omx_video_dec_debug_category); #define GST_CAT_DEFAULT gst_omx_video_dec_debug_category typedef struct _GstOMXMemory GstOMXMemory; typedef struct _GstOMXMemoryAllocator GstOMXMemoryAllocator; typedef struct _GstOMXMemoryAllocatorClass GstOMXMemoryAllocatorClass; struct _GstOMXMemory { GstMemory mem; GstOMXBuffer *buf; }; struct _GstOMXMemoryAllocator { GstAllocator parent; }; struct _GstOMXMemoryAllocatorClass { GstAllocatorClass parent_class; }; #define GST_OMX_MEMORY_TYPE "openmax" static GstMemory * gst_omx_memory_allocator_alloc_dummy (GstAllocator * allocator, gsize size, GstAllocationParams * params) { g_assert_not_reached (); return NULL; } static void gst_omx_memory_allocator_free (GstAllocator * allocator, GstMemory * mem) { GstOMXMemory *omem = (GstOMXMemory *) mem; /* TODO: We need to remember which memories are still used * so we can wait until everything is released before allocating * new memory */ g_slice_free (GstOMXMemory, omem); } static gpointer gst_omx_memory_map (GstMemory * mem, gsize maxsize, GstMapFlags flags) { GstOMXMemory *omem = (GstOMXMemory *) mem; return omem->buf->omx_buf->pBuffer + omem->mem.offset; } static void gst_omx_memory_unmap (GstMemory * mem) { } static GstMemory * gst_omx_memory_share (GstMemory * mem, gssize offset, gssize size) { g_assert_not_reached (); return NULL; } GType gst_omx_memory_allocator_get_type (void); G_DEFINE_TYPE (GstOMXMemoryAllocator, gst_omx_memory_allocator, GST_TYPE_ALLOCATOR); #define GST_TYPE_OMX_MEMORY_ALLOCATOR (gst_omx_memory_allocator_get_type()) #define GST_IS_OMX_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_OMX_MEMORY_ALLOCATOR)) static void gst_omx_memory_allocator_class_init (GstOMXMemoryAllocatorClass * klass) { GstAllocatorClass *allocator_class; allocator_class = (GstAllocatorClass *) klass; allocator_class->alloc = gst_omx_memory_allocator_alloc_dummy; allocator_class->free = gst_omx_memory_allocator_free; } static void gst_omx_memory_allocator_init (GstOMXMemoryAllocator * allocator) { GstAllocator *alloc = GST_ALLOCATOR_CAST (allocator); alloc->mem_type = GST_OMX_MEMORY_TYPE; alloc->mem_map = gst_omx_memory_map; alloc->mem_unmap = gst_omx_memory_unmap; alloc->mem_share = gst_omx_memory_share; /* default copy & is_span */ GST_OBJECT_FLAG_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC); } static GstMemory * gst_omx_memory_allocator_alloc (GstAllocator * allocator, GstMemoryFlags flags, GstOMXBuffer * buf) { GstOMXMemory *mem; /* FIXME: We don't allow sharing because we need to know * when the memory becomes unused and can only then put * it back to the pool. Which is done in the pool's release * function */ flags |= GST_MEMORY_FLAG_NO_SHARE; mem = g_slice_new (GstOMXMemory); /* the shared memory is always readonly */ gst_memory_init (GST_MEMORY_CAST (mem), flags, allocator, NULL, buf->omx_buf->nAllocLen, buf->port->port_def.nBufferAlignment, 0, buf->omx_buf->nAllocLen); mem->buf = buf; return GST_MEMORY_CAST (mem); } /* Buffer pool for the buffers of an OpenMAX port. * * This pool is only used if we either passed buffers from another * pool to the OMX port or provide the OMX buffers directly to other * elements. * * * A buffer is in the pool if it is currently owned by the port, * i.e. after OMX_{Fill,Empty}ThisBuffer(). A buffer is outside * the pool after it was taken from the port after it was handled * by the port, i.e. {Empty,Fill}BufferDone. * * Buffers can be allocated by us (OMX_AllocateBuffer()) or allocated * by someone else and (temporarily) passed to this pool * (OMX_UseBuffer(), OMX_UseEGLImage()). In the latter case the pool of * the buffer will be overriden, and restored in free_buffer(). Other * buffers are just freed there. * * The pool always has a fixed number of minimum and maximum buffers * and these are allocated while starting the pool and released afterwards. * They correspond 1:1 to the OMX buffers of the port, which are allocated * before the pool is started. * * Acquiring a buffer from this pool happens after the OMX buffer has * been acquired from the port. gst_buffer_pool_acquire_buffer() is * supposed to return the buffer that corresponds to the OMX buffer. * * For buffers provided to upstream, the buffer will be passed to * the component manually when it arrives and then unreffed. If the * buffer is released before reaching the component it will be just put * back into the pool as if EmptyBufferDone has happened. If it was * passed to the component, it will be back into the pool when it was * released and EmptyBufferDone has happened. * * For buffers provided to downstream, the buffer will be returned * back to the component (OMX_FillThisBuffer()) when it is released. */ static GQuark gst_omx_buffer_data_quark = 0; #define GST_OMX_BUFFER_POOL(pool) ((GstOMXBufferPool *) pool) typedef struct _GstOMXBufferPool GstOMXBufferPool; typedef struct _GstOMXBufferPoolClass GstOMXBufferPoolClass; struct _GstOMXBufferPool { GstVideoBufferPool parent; GstElement *element; GstCaps *caps; gboolean add_videometa; GstVideoInfo video_info; /* Owned by element, element has to stop this pool before * it destroys component or port */ GstOMXComponent *component; GstOMXPort *port; /* For handling OpenMAX allocated memory */ GstAllocator *allocator; /* Set from outside this pool */ /* TRUE if we're currently allocating all our buffers */ gboolean allocating; /* TRUE if the pool is not used anymore */ gboolean deactivated; /* For populating the pool from another one */ GstBufferPool *other_pool; GPtrArray *buffers; /* Used during acquire for output ports to * specify which buffer has to be retrieved * and during alloc, which buffer has to be * wrapped */ gint current_buffer_index; }; struct _GstOMXBufferPoolClass { GstVideoBufferPoolClass parent_class; }; GType gst_omx_buffer_pool_get_type (void); G_DEFINE_TYPE (GstOMXBufferPool, gst_omx_buffer_pool, GST_TYPE_BUFFER_POOL); static gboolean gst_omx_buffer_pool_start (GstBufferPool * bpool) { GstOMXBufferPool *pool = GST_OMX_BUFFER_POOL (bpool); /* Only allow to start the pool if we still are attached * to a component and port */ GST_OBJECT_LOCK (pool); if (!pool->component || !pool->port) { GST_OBJECT_UNLOCK (pool); return FALSE; } GST_OBJECT_UNLOCK (pool); return GST_BUFFER_POOL_CLASS (gst_omx_buffer_pool_parent_class)->start (bpool); } static gboolean gst_omx_buffer_pool_stop (GstBufferPool * bpool) { GstOMXBufferPool *pool = GST_OMX_BUFFER_POOL (bpool); /* Remove any buffers that are there */ g_ptr_array_set_size (pool->buffers, 0); if (pool->caps) gst_caps_unref (pool->caps); pool->caps = NULL; pool->add_videometa = FALSE; return GST_BUFFER_POOL_CLASS (gst_omx_buffer_pool_parent_class)->stop (bpool); } static const gchar ** gst_omx_buffer_pool_get_options (GstBufferPool * bpool) { static const gchar *raw_video_options[] = { GST_BUFFER_POOL_OPTION_VIDEO_META, NULL }; static const gchar *options[] = { NULL }; GstOMXBufferPool *pool = GST_OMX_BUFFER_POOL (bpool); GST_OBJECT_LOCK (pool); if (pool->port && pool->port->port_def.eDomain == OMX_PortDomainVideo && pool->port->port_def.format.video.eCompressionFormat == OMX_VIDEO_CodingUnused) { GST_OBJECT_UNLOCK (pool); return raw_video_options; } GST_OBJECT_UNLOCK (pool); return options; } static gboolean gst_omx_buffer_pool_set_config (GstBufferPool * bpool, GstStructure * config) { GstOMXBufferPool *pool = GST_OMX_BUFFER_POOL (bpool); GstCaps *caps; GST_OBJECT_LOCK (pool); if (!gst_buffer_pool_config_get_params (config, &caps, NULL, NULL, NULL)) goto wrong_config; if (caps == NULL) goto no_caps; if (pool->port && pool->port->port_def.eDomain == OMX_PortDomainVideo && pool->port->port_def.format.video.eCompressionFormat == OMX_VIDEO_CodingUnused) { GstVideoInfo info; /* now parse the caps from the config */ if (!gst_video_info_from_caps (&info, caps)) goto wrong_video_caps; /* enable metadata based on config of the pool */ pool->add_videometa = gst_buffer_pool_config_has_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META); pool->video_info = info; } if (pool->caps) gst_caps_unref (pool->caps); pool->caps = gst_caps_ref (caps); GST_OBJECT_UNLOCK (pool); return GST_BUFFER_POOL_CLASS (gst_omx_buffer_pool_parent_class)->set_config (bpool, config); /* ERRORS */ wrong_config: { GST_OBJECT_UNLOCK (pool); GST_WARNING_OBJECT (pool, "invalid config"); return FALSE; } no_caps: { GST_OBJECT_UNLOCK (pool); GST_WARNING_OBJECT (pool, "no caps in config"); return FALSE; } wrong_video_caps: { GST_OBJECT_UNLOCK (pool); GST_WARNING_OBJECT (pool, "failed getting geometry from caps %" GST_PTR_FORMAT, caps); return FALSE; } } static GstFlowReturn gst_omx_buffer_pool_alloc_buffer (GstBufferPool * bpool, GstBuffer ** buffer, GstBufferPoolAcquireParams * params) { GstOMXBufferPool *pool = GST_OMX_BUFFER_POOL (bpool); GstBuffer *buf; GstOMXBuffer *omx_buf; g_return_val_if_fail (pool->allocating, GST_FLOW_ERROR); omx_buf = g_ptr_array_index (pool->port->buffers, pool->current_buffer_index); g_return_val_if_fail (omx_buf != NULL, GST_FLOW_ERROR); if (pool->other_pool) { guint i, n; buf = g_ptr_array_index (pool->buffers, pool->current_buffer_index); g_assert (pool->other_pool == buf->pool); gst_object_replace ((GstObject **) & buf->pool, NULL); n = gst_buffer_n_memory (buf); for (i = 0; i < n; i++) { GstMemory *mem = gst_buffer_peek_memory (buf, i); /* FIXME: We don't allow sharing because we need to know * when the memory becomes unused and can only then put * it back to the pool. Which is done in the pool's release * function */ GST_MINI_OBJECT_FLAG_SET (mem, GST_MEMORY_FLAG_NO_SHARE); } if (pool->add_videometa) { GstVideoMeta *meta; meta = gst_buffer_get_video_meta (buf); if (!meta) { gst_buffer_add_video_meta (buf, GST_VIDEO_FRAME_FLAG_NONE, GST_VIDEO_INFO_FORMAT (&pool->video_info), GST_VIDEO_INFO_WIDTH (&pool->video_info), GST_VIDEO_INFO_HEIGHT (&pool->video_info)); } } } else { GstMemory *mem; mem = gst_omx_memory_allocator_alloc (pool->allocator, 0, omx_buf); buf = gst_buffer_new (); gst_buffer_append_memory (buf, mem); g_ptr_array_add (pool->buffers, buf); if (pool->add_videometa) { gsize offset[4] = { 0, }; gint stride[4] = { 0, }; switch (pool->video_info.finfo->format) { case GST_VIDEO_FORMAT_I420: offset[0] = 0; stride[0] = pool->port->port_def.format.video.nStride; offset[1] = stride[0] * pool->port->port_def.format.video.nSliceHeight; stride[1] = pool->port->port_def.format.video.nStride / 2; offset[2] = offset[1] + stride[1] * (pool->port->port_def.format.video.nSliceHeight / 2); stride[2] = pool->port->port_def.format.video.nStride / 2; break; case GST_VIDEO_FORMAT_NV12: offset[0] = 0; stride[0] = pool->port->port_def.format.video.nStride; offset[1] = stride[0] * pool->port->port_def.format.video.nSliceHeight; stride[1] = pool->port->port_def.format.video.nStride; break; default: g_assert_not_reached (); break; } gst_buffer_add_video_meta_full (buf, GST_VIDEO_FRAME_FLAG_NONE, GST_VIDEO_INFO_FORMAT (&pool->video_info), GST_VIDEO_INFO_WIDTH (&pool->video_info), GST_VIDEO_INFO_HEIGHT (&pool->video_info), GST_VIDEO_INFO_N_PLANES (&pool->video_info), offset, stride); } } gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (buf), gst_omx_buffer_data_quark, omx_buf, NULL); *buffer = buf; pool->current_buffer_index++; return GST_FLOW_OK; } static void gst_omx_buffer_pool_free_buffer (GstBufferPool * bpool, GstBuffer * buffer) { GstOMXBufferPool *pool = GST_OMX_BUFFER_POOL (bpool); /* If the buffers belong to another pool, restore them now */ GST_OBJECT_LOCK (pool); if (pool->other_pool) { gst_object_replace ((GstObject **) & buffer->pool, (GstObject *) pool->other_pool); } GST_OBJECT_UNLOCK (pool); gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (buffer), gst_omx_buffer_data_quark, NULL, NULL); GST_BUFFER_POOL_CLASS (gst_omx_buffer_pool_parent_class)->free_buffer (bpool, buffer); } static GstFlowReturn gst_omx_buffer_pool_acquire_buffer (GstBufferPool * bpool, GstBuffer ** buffer, GstBufferPoolAcquireParams * params) { GstFlowReturn ret; GstOMXBufferPool *pool = GST_OMX_BUFFER_POOL (bpool); if (pool->port->port_def.eDir == OMX_DirOutput) { GstBuffer *buf; g_return_val_if_fail (pool->current_buffer_index != -1, GST_FLOW_ERROR); buf = g_ptr_array_index (pool->buffers, pool->current_buffer_index); g_return_val_if_fail (buf != NULL, GST_FLOW_ERROR); *buffer = buf; ret = GST_FLOW_OK; /* If it's our own memory we have to set the sizes */ if (!pool->other_pool) { GstMemory *mem = gst_buffer_peek_memory (*buffer, 0); g_assert (mem && g_strcmp0 (mem->allocator->mem_type, GST_OMX_MEMORY_TYPE) == 0); mem->size = ((GstOMXMemory *) mem)->buf->omx_buf->nFilledLen; mem->offset = ((GstOMXMemory *) mem)->buf->omx_buf->nOffset; } } else { /* Acquire any buffer that is available to be filled by upstream */ ret = GST_BUFFER_POOL_CLASS (gst_omx_buffer_pool_parent_class)->acquire_buffer (bpool, buffer, params); } return ret; } static void gst_omx_buffer_pool_release_buffer (GstBufferPool * bpool, GstBuffer * buffer) { GstOMXBufferPool *pool = GST_OMX_BUFFER_POOL (bpool); OMX_ERRORTYPE err; GstOMXBuffer *omx_buf; g_assert (pool->component && pool->port); if (!pool->allocating && !pool->deactivated) { omx_buf = gst_mini_object_get_qdata (GST_MINI_OBJECT_CAST (buffer), gst_omx_buffer_data_quark); if (pool->port->port_def.eDir == OMX_DirOutput && !omx_buf->used) { /* Release back to the port, can be filled again */ err = gst_omx_port_release_buffer (pool->port, omx_buf); if (err != OMX_ErrorNone) { GST_ELEMENT_ERROR (pool->element, LIBRARY, SETTINGS, (NULL), ("Failed to relase output buffer to component: %s (0x%08x)", gst_omx_error_to_string (err), err)); } } else if (!omx_buf->used) { /* TODO: Implement. * * If not used (i.e. was not passed to the component) this should do * the same as EmptyBufferDone. * If it is used (i.e. was passed to the component) this should do * nothing until EmptyBufferDone. * * EmptyBufferDone should release the buffer to the pool so it can * be allocated again * * Needs something to call back here in EmptyBufferDone, like keeping * a ref on the buffer in GstOMXBuffer until EmptyBufferDone... which * would ensure that the buffer is always unused when this is called. */ g_assert_not_reached (); GST_BUFFER_POOL_CLASS (gst_omx_buffer_pool_parent_class)->release_buffer (bpool, buffer); } } } static void gst_omx_buffer_pool_finalize (GObject * object) { GstOMXBufferPool *pool = GST_OMX_BUFFER_POOL (object); if (pool->element) gst_object_unref (pool->element); pool->element = NULL; if (pool->buffers) g_ptr_array_unref (pool->buffers); pool->buffers = NULL; if (pool->other_pool) gst_object_unref (pool->other_pool); pool->other_pool = NULL; if (pool->allocator) gst_object_unref (pool->allocator); pool->allocator = NULL; if (pool->caps) gst_caps_unref (pool->caps); pool->caps = NULL; G_OBJECT_CLASS (gst_omx_buffer_pool_parent_class)->finalize (object); } static void gst_omx_buffer_pool_class_init (GstOMXBufferPoolClass * klass) { GObjectClass *gobject_class = (GObjectClass *) klass; GstBufferPoolClass *gstbufferpool_class = (GstBufferPoolClass *) klass; gst_omx_buffer_data_quark = g_quark_from_static_string ("GstOMXBufferData"); gobject_class->finalize = gst_omx_buffer_pool_finalize; gstbufferpool_class->start = gst_omx_buffer_pool_start; gstbufferpool_class->stop = gst_omx_buffer_pool_stop; gstbufferpool_class->get_options = gst_omx_buffer_pool_get_options; gstbufferpool_class->set_config = gst_omx_buffer_pool_set_config; gstbufferpool_class->alloc_buffer = gst_omx_buffer_pool_alloc_buffer; gstbufferpool_class->free_buffer = gst_omx_buffer_pool_free_buffer; gstbufferpool_class->acquire_buffer = gst_omx_buffer_pool_acquire_buffer; gstbufferpool_class->release_buffer = gst_omx_buffer_pool_release_buffer; } static void gst_omx_buffer_pool_init (GstOMXBufferPool * pool) { pool->buffers = g_ptr_array_new (); pool->allocator = g_object_new (gst_omx_memory_allocator_get_type (), NULL); } static GstBufferPool * gst_omx_buffer_pool_new (GstElement * element, GstOMXComponent * component, GstOMXPort * port) { GstOMXBufferPool *pool; pool = g_object_new (gst_omx_buffer_pool_get_type (), NULL); pool->element = gst_object_ref (element); pool->component = component; pool->port = port; return GST_BUFFER_POOL (pool); } typedef struct _BufferIdentification BufferIdentification; struct _BufferIdentification { guint64 timestamp; }; static void buffer_identification_free (BufferIdentification * id) { g_slice_free (BufferIdentification, id); } /* prototypes */ static void gst_omx_video_dec_finalize (GObject * object); static GstStateChangeReturn gst_omx_video_dec_change_state (GstElement * element, GstStateChange transition); static gboolean gst_omx_video_dec_open (GstVideoDecoder * decoder); static gboolean gst_omx_video_dec_close (GstVideoDecoder * decoder); static gboolean gst_omx_video_dec_start (GstVideoDecoder * decoder); static gboolean gst_omx_video_dec_stop (GstVideoDecoder * decoder); static gboolean gst_omx_video_dec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state); static gboolean gst_omx_video_dec_reset (GstVideoDecoder * decoder, gboolean hard); static GstFlowReturn gst_omx_video_dec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame); static GstFlowReturn gst_omx_video_dec_finish (GstVideoDecoder * decoder); static gboolean gst_omx_video_dec_decide_allocation (GstVideoDecoder * bdec, GstQuery * query); static GstFlowReturn gst_omx_video_dec_drain (GstOMXVideoDec * self, gboolean is_eos); static OMX_ERRORTYPE gst_omx_video_dec_allocate_output_buffers (GstOMXVideoDec * self); static OMX_ERRORTYPE gst_omx_video_dec_deallocate_output_buffers (GstOMXVideoDec * self); enum { PROP_0 }; /* class initialization */ #define DEBUG_INIT \ GST_DEBUG_CATEGORY_INIT (gst_omx_video_dec_debug_category, "omxvideodec", 0, \ "debug category for gst-omx video decoder base class"); G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstOMXVideoDec, gst_omx_video_dec, GST_TYPE_VIDEO_DECODER, DEBUG_INIT); static void gst_omx_video_dec_class_init (GstOMXVideoDecClass * klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstVideoDecoderClass *video_decoder_class = GST_VIDEO_DECODER_CLASS (klass); gobject_class->finalize = gst_omx_video_dec_finalize; element_class->change_state = GST_DEBUG_FUNCPTR (gst_omx_video_dec_change_state); video_decoder_class->open = GST_DEBUG_FUNCPTR (gst_omx_video_dec_open); video_decoder_class->close = GST_DEBUG_FUNCPTR (gst_omx_video_dec_close); video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_omx_video_dec_start); video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_omx_video_dec_stop); video_decoder_class->reset = GST_DEBUG_FUNCPTR (gst_omx_video_dec_reset); video_decoder_class->set_format = GST_DEBUG_FUNCPTR (gst_omx_video_dec_set_format); video_decoder_class->handle_frame = GST_DEBUG_FUNCPTR (gst_omx_video_dec_handle_frame); video_decoder_class->finish = GST_DEBUG_FUNCPTR (gst_omx_video_dec_finish); video_decoder_class->decide_allocation = GST_DEBUG_FUNCPTR (gst_omx_video_dec_decide_allocation); klass->cdata.default_src_template_caps = "video/x-raw, " "width = " GST_VIDEO_SIZE_RANGE ", " "height = " GST_VIDEO_SIZE_RANGE ", " "framerate = " GST_VIDEO_FPS_RANGE; } static void gst_omx_video_dec_init (GstOMXVideoDec * self) { gst_video_decoder_set_packetized (GST_VIDEO_DECODER (self), TRUE); g_mutex_init (&self->drain_lock); g_cond_init (&self->drain_cond); } static gboolean gst_omx_video_dec_open (GstVideoDecoder * decoder) { GstOMXVideoDec *self = GST_OMX_VIDEO_DEC (decoder); GstOMXVideoDecClass *klass = GST_OMX_VIDEO_DEC_GET_CLASS (self); gint in_port_index, out_port_index; GST_DEBUG_OBJECT (self, "Opening decoder"); self->dec = gst_omx_component_new (GST_OBJECT_CAST (self), klass->cdata.core_name, klass->cdata.component_name, klass->cdata.component_role, klass->cdata.hacks); self->started = FALSE; if (!self->dec) return FALSE; if (gst_omx_component_get_state (self->dec, GST_CLOCK_TIME_NONE) != OMX_StateLoaded) return FALSE; in_port_index = klass->cdata.in_port_index; out_port_index = klass->cdata.out_port_index; if (in_port_index == -1 || out_port_index == -1) { OMX_PORT_PARAM_TYPE param; OMX_ERRORTYPE err; GST_OMX_INIT_STRUCT (¶m); err = gst_omx_component_get_parameter (self->dec, OMX_IndexParamVideoInit, ¶m); if (err != OMX_ErrorNone) { GST_WARNING_OBJECT (self, "Couldn't get port information: %s (0x%08x)", gst_omx_error_to_string (err), err); /* Fallback */ in_port_index = 0; out_port_index = 1; } else { GST_DEBUG_OBJECT (self, "Detected %u ports, starting at %u", param.nPorts, param.nStartPortNumber); in_port_index = param.nStartPortNumber + 0; out_port_index = param.nStartPortNumber + 1; } } self->dec_in_port = gst_omx_component_add_port (self->dec, in_port_index); self->dec_out_port = gst_omx_component_add_port (self->dec, out_port_index); if (!self->dec_in_port || !self->dec_out_port) return FALSE; GST_DEBUG_OBJECT (self, "Opened decoder"); return TRUE; } static gboolean gst_omx_video_dec_shutdown (GstOMXVideoDec * self) { OMX_STATETYPE state; GST_DEBUG_OBJECT (self, "Shutting down decoder"); state = gst_omx_component_get_state (self->dec, 0); if (state > OMX_StateLoaded || state == OMX_StateInvalid) { if (state > OMX_StateIdle) { gst_omx_component_set_state (self->dec, OMX_StateIdle); gst_omx_component_get_state (self->dec, 5 * GST_SECOND); } gst_omx_component_set_state (self->dec, OMX_StateLoaded); gst_omx_port_deallocate_buffers (self->dec_in_port); gst_omx_video_dec_deallocate_output_buffers (self); if (state > OMX_StateLoaded) gst_omx_component_get_state (self->dec, 5 * GST_SECOND); } return TRUE; } static gboolean gst_omx_video_dec_close (GstVideoDecoder * decoder) { GstOMXVideoDec *self = GST_OMX_VIDEO_DEC (decoder); GST_DEBUG_OBJECT (self, "Closing decoder"); if (!gst_omx_video_dec_shutdown (self)) return FALSE; self->dec_in_port = NULL; self->dec_out_port = NULL; if (self->dec) gst_omx_component_free (self->dec); self->dec = NULL; self->started = FALSE; GST_DEBUG_OBJECT (self, "Closed decoder"); return TRUE; } static void gst_omx_video_dec_finalize (GObject * object) { GstOMXVideoDec *self = GST_OMX_VIDEO_DEC (object); g_mutex_clear (&self->drain_lock); g_cond_clear (&self->drain_cond); G_OBJECT_CLASS (gst_omx_video_dec_parent_class)->finalize (object); } static GstStateChangeReturn gst_omx_video_dec_change_state (GstElement * element, GstStateChange transition) { GstOMXVideoDec *self; GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; g_return_val_if_fail (GST_IS_OMX_VIDEO_DEC (element), GST_STATE_CHANGE_FAILURE); self = GST_OMX_VIDEO_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; break; case GST_STATE_CHANGE_PAUSED_TO_PLAYING: break; case GST_STATE_CHANGE_PAUSED_TO_READY: if (self->dec_in_port) gst_omx_port_set_flushing (self->dec_in_port, 5 * GST_SECOND, TRUE); if (self->dec_out_port) gst_omx_port_set_flushing (self->dec_out_port, 5 * GST_SECOND, TRUE); 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 (gst_omx_video_dec_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: self->downstream_flow_ret = GST_FLOW_FLUSHING; self->started = FALSE; if (!gst_omx_video_dec_shutdown (self)) ret = GST_STATE_CHANGE_FAILURE; break; case GST_STATE_CHANGE_READY_TO_NULL: break; default: break; } return ret; } #define MAX_FRAME_DIST_TICKS (5 * OMX_TICKS_PER_SECOND) #define MAX_FRAME_DIST_FRAMES (100) static GstVideoCodecFrame * _find_nearest_frame (GstOMXVideoDec * self, GstOMXBuffer * buf) { GList *l, *best_l = NULL; GList *finish_frames = NULL; GstVideoCodecFrame *best = NULL; guint64 best_timestamp = 0; guint64 best_diff = G_MAXUINT64; BufferIdentification *best_id = NULL; GList *frames; frames = gst_video_decoder_get_frames (GST_VIDEO_DECODER (self)); for (l = frames; l; l = l->next) { GstVideoCodecFrame *tmp = l->data; BufferIdentification *id = gst_video_codec_frame_get_user_data (tmp); guint64 timestamp, diff; /* This happens for frames that were just added but * which were not passed to the component yet. Ignore * them here! */ if (!id) continue; timestamp = id->timestamp; if (timestamp > buf->omx_buf->nTimeStamp) diff = timestamp - buf->omx_buf->nTimeStamp; else diff = buf->omx_buf->nTimeStamp - timestamp; if (best == NULL || diff < best_diff) { best = tmp; best_timestamp = timestamp; best_diff = diff; best_l = l; best_id = id; /* For frames without timestamp we simply take the first frame */ if ((buf->omx_buf->nTimeStamp == 0 && timestamp == 0) || diff == 0) break; } } if (best_id) { for (l = frames; l && l != best_l; l = l->next) { GstVideoCodecFrame *tmp = l->data; BufferIdentification *id = gst_video_codec_frame_get_user_data (tmp); guint64 diff_ticks, diff_frames; /* This happens for frames that were just added but * which were not passed to the component yet. Ignore * them here! */ if (!id) continue; if (id->timestamp > best_timestamp) break; if (id->timestamp == 0 || best_timestamp == 0) diff_ticks = 0; else diff_ticks = best_timestamp - id->timestamp; diff_frames = best->system_frame_number - tmp->system_frame_number; if (diff_ticks > MAX_FRAME_DIST_TICKS || diff_frames > MAX_FRAME_DIST_FRAMES) { finish_frames = g_list_prepend (finish_frames, gst_video_codec_frame_ref (tmp)); } } } if (finish_frames) { g_warning ("Too old frames, bug in decoder -- please file a bug"); for (l = finish_frames; l; l = l->next) { gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), l->data); } } if (best) gst_video_codec_frame_ref (best); g_list_foreach (frames, (GFunc) gst_video_codec_frame_unref, NULL); g_list_free (frames); return best; } static gboolean gst_omx_video_dec_fill_buffer (GstOMXVideoDec * self, GstOMXBuffer * inbuf, GstBuffer * outbuf) { GstVideoCodecState *state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (self)); GstVideoInfo *vinfo = &state->info; OMX_PARAM_PORTDEFINITIONTYPE *port_def = &self->dec_out_port->port_def; gboolean ret = FALSE; GstVideoFrame frame; if (vinfo->width != port_def->format.video.nFrameWidth || vinfo->height != port_def->format.video.nFrameHeight) { GST_ERROR_OBJECT (self, "Resolution do not match. port: %dx%d vinfo: %dx%d", port_def->format.video.nFrameWidth, port_def->format.video.nFrameHeight, vinfo->width, vinfo->height); goto done; } /* Same strides and everything */ if (gst_buffer_get_size (outbuf) == inbuf->omx_buf->nFilledLen) { GstMapInfo map = GST_MAP_INFO_INIT; gst_buffer_map (outbuf, &map, GST_MAP_WRITE); memcpy (map.data, inbuf->omx_buf->pBuffer + inbuf->omx_buf->nOffset, inbuf->omx_buf->nFilledLen); gst_buffer_unmap (outbuf, &map); ret = TRUE; goto done; } /* Different strides */ switch (vinfo->finfo->format) { case GST_VIDEO_FORMAT_I420:{ gint i, j, height, width; guint8 *src, *dest; gint src_stride, dest_stride; gst_video_frame_map (&frame, vinfo, outbuf, GST_MAP_WRITE); for (i = 0; i < 3; i++) { if (i == 0) { src_stride = port_def->format.video.nStride; dest_stride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, i); /* XXX: Try this if no stride was set */ if (src_stride == 0) src_stride = dest_stride; } else { src_stride = port_def->format.video.nStride / 2; dest_stride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, i); /* XXX: Try this if no stride was set */ if (src_stride == 0) src_stride = dest_stride; } src = inbuf->omx_buf->pBuffer + inbuf->omx_buf->nOffset; if (i > 0) src += port_def->format.video.nSliceHeight * port_def->format.video.nStride; if (i == 2) src += (port_def->format.video.nSliceHeight / 2) * (port_def->format.video.nStride / 2); dest = GST_VIDEO_FRAME_COMP_DATA (&frame, i); height = GST_VIDEO_FRAME_COMP_HEIGHT (&frame, i); width = GST_VIDEO_FRAME_COMP_WIDTH (&frame, i); for (j = 0; j < height; j++) { memcpy (dest, src, width); src += src_stride; dest += dest_stride; } } gst_video_frame_unmap (&frame); ret = TRUE; break; } case GST_VIDEO_FORMAT_NV12:{ gint i, j, height, width; guint8 *src, *dest; gint src_stride, dest_stride; gst_video_frame_map (&frame, vinfo, outbuf, GST_MAP_WRITE); for (i = 0; i < 2; i++) { if (i == 0) { src_stride = port_def->format.video.nStride; dest_stride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, i); /* XXX: Try this if no stride was set */ if (src_stride == 0) src_stride = dest_stride; } else { src_stride = port_def->format.video.nStride; dest_stride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, i); /* XXX: Try this if no stride was set */ if (src_stride == 0) src_stride = dest_stride; } src = inbuf->omx_buf->pBuffer + inbuf->omx_buf->nOffset; if (i == 1) src += port_def->format.video.nSliceHeight * port_def->format.video.nStride; dest = GST_VIDEO_FRAME_COMP_DATA (&frame, i); height = GST_VIDEO_FRAME_COMP_HEIGHT (&frame, i); width = GST_VIDEO_FRAME_COMP_WIDTH (&frame, i) * (i == 0 ? 1 : 2); for (j = 0; j < height; j++) { memcpy (dest, src, width); src += src_stride; dest += dest_stride; } } gst_video_frame_unmap (&frame); ret = TRUE; break; } default: GST_ERROR_OBJECT (self, "Unsupported format"); goto done; break; } done: if (ret) { GST_BUFFER_PTS (outbuf) = gst_util_uint64_scale (inbuf->omx_buf->nTimeStamp, GST_SECOND, OMX_TICKS_PER_SECOND); if (inbuf->omx_buf->nTickCount != 0) GST_BUFFER_DURATION (outbuf) = gst_util_uint64_scale (inbuf->omx_buf->nTickCount, GST_SECOND, OMX_TICKS_PER_SECOND); } gst_video_codec_state_unref (state); return ret; } static OMX_ERRORTYPE gst_omx_video_dec_allocate_output_buffers (GstOMXVideoDec * self) { OMX_ERRORTYPE err = OMX_ErrorNone; GstOMXPort *port; GstBufferPool *pool; GstStructure *config; gboolean eglimage = FALSE, add_videometa = FALSE; GstCaps *caps = NULL; guint min = 0, max = 0; GstVideoCodecState *state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (self)); port = self->dec_out_port; pool = gst_video_decoder_get_buffer_pool (GST_VIDEO_DECODER (self)); /* FIXME: Enable this once there's a way to request downstream to * release all our buffers, e.g. * http://cgit.freedesktop.org/~wtay/gstreamer/log/?h=release-pool */ if (FALSE && pool) { GstAllocator *allocator; config = gst_buffer_pool_get_config (pool); gst_buffer_pool_config_get_params (config, &caps, NULL, &min, &max); gst_buffer_pool_config_get_allocator (config, &allocator, NULL); /* Need at least 2 buffers for anything meaningful */ min = MAX (MAX (min, port->port_def.nBufferCountMin), 4); if (max == 0) { max = min; } else if (max < port->port_def.nBufferCountMin || max < 2) { /* Can't use pool because can't have enough buffers */ gst_caps_replace (&caps, NULL); } else { min = max; } add_videometa = gst_buffer_pool_config_has_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META); /* TODO: Implement something here */ eglimage = FALSE; caps = caps ? gst_caps_ref (caps) : NULL; GST_DEBUG_OBJECT (self, "Trying to use pool %p with caps %" GST_PTR_FORMAT " and memory type %s", pool, caps, (allocator ? allocator->mem_type : "(null)")); } else { gst_caps_replace (&caps, NULL); min = max = port->port_def.nBufferCountMin; GST_DEBUG_OBJECT (self, "No pool available, not negotiated yet"); } if (caps) self->out_port_pool = gst_omx_buffer_pool_new (GST_ELEMENT_CAST (self), self->dec, port); /* TODO: Implement EGLImage handling and usage of other downstream buffers */ /* If not using EGLImage or trying to use EGLImage failed */ if (!eglimage) { gboolean was_enabled = TRUE; if (min != port->port_def.nBufferCountActual) { err = gst_omx_port_update_port_definition (port, NULL); if (err == OMX_ErrorNone) { port->port_def.nBufferCountActual = min; err = gst_omx_port_update_port_definition (port, &port->port_def); } if (err != OMX_ErrorNone) { GST_ERROR_OBJECT (self, "Failed to configure %u output buffers: %s (0x%08x)", min, gst_omx_error_to_string (err), err); goto done; } } if (!gst_omx_port_is_enabled (port)) { err = gst_omx_port_set_enabled (port, TRUE); if (err != OMX_ErrorNone) { GST_INFO_OBJECT (self, "Failed to enable port: %s (0x%08x)", gst_omx_error_to_string (err), err); goto done; } was_enabled = FALSE; } err = gst_omx_port_allocate_buffers (port); if (err != OMX_ErrorNone && min > port->port_def.nBufferCountMin) { GST_ERROR_OBJECT (self, "Failed to allocate required number of buffers %d, trying less and copying", min); min = port->port_def.nBufferCountMin; if (!was_enabled) gst_omx_port_set_enabled (port, FALSE); if (min != port->port_def.nBufferCountActual) { err = gst_omx_port_update_port_definition (port, NULL); if (err == OMX_ErrorNone) { port->port_def.nBufferCountActual = min; err = gst_omx_port_update_port_definition (port, &port->port_def); } if (err != OMX_ErrorNone) { GST_ERROR_OBJECT (self, "Failed to configure %u output buffers: %s (0x%08x)", min, gst_omx_error_to_string (err), err); goto done; } } err = gst_omx_port_allocate_buffers (port); /* Can't provide buffers downstream in this case */ gst_caps_replace (&caps, NULL); } if (err != OMX_ErrorNone) { GST_ERROR_OBJECT (self, "Failed to allocate %d buffers: %s (0x%08x)", min, gst_omx_error_to_string (err), err); goto done; } if (!was_enabled) { err = gst_omx_port_wait_enabled (port, 2 * GST_SECOND); if (err != OMX_ErrorNone) { GST_ERROR_OBJECT (self, "Failed to wait until port is enabled: %s (0x%08x)", gst_omx_error_to_string (err), err); goto done; } } } err = OMX_ErrorNone; if (caps) { config = gst_buffer_pool_get_config (self->out_port_pool); if (add_videometa) gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META); gst_buffer_pool_config_set_params (config, caps, self->dec_out_port->port_def.nBufferSize, min, max); if (!gst_buffer_pool_set_config (self->out_port_pool, config)) { GST_INFO_OBJECT (self, "Failed to set config on internal pool"); gst_object_unref (self->out_port_pool); self->out_port_pool = NULL; goto done; } GST_OMX_BUFFER_POOL (self->out_port_pool)->allocating = TRUE; /* This now allocates all the buffers */ if (!gst_buffer_pool_set_active (self->out_port_pool, TRUE)) { GST_INFO_OBJECT (self, "Failed to activate internal pool"); gst_object_unref (self->out_port_pool); self->out_port_pool = NULL; } else { GST_OMX_BUFFER_POOL (self->out_port_pool)->allocating = FALSE; } } else if (self->out_port_pool) { gst_object_unref (self->out_port_pool); self->out_port_pool = NULL; } done: if (!self->out_port_pool && err == OMX_ErrorNone) GST_DEBUG_OBJECT (self, "Not using our internal pool and copying buffers for downstream"); if (caps) gst_caps_unref (caps); if (pool) gst_object_unref (pool); if (state) gst_video_codec_state_unref (state); return err; } static OMX_ERRORTYPE gst_omx_video_dec_deallocate_output_buffers (GstOMXVideoDec * self) { OMX_ERRORTYPE err; if (self->out_port_pool) { gst_buffer_pool_set_active (self->out_port_pool, FALSE); GST_OMX_BUFFER_POOL (self->out_port_pool)->deactivated = TRUE; gst_object_unref (self->out_port_pool); self->out_port_pool = NULL; } err = gst_omx_port_deallocate_buffers (self->dec_out_port); return err; } static void gst_omx_video_dec_loop (GstOMXVideoDec * self) { GstOMXPort *port = self->dec_out_port; GstOMXBuffer *buf = NULL; GstVideoCodecFrame *frame; GstFlowReturn flow_ret = GST_FLOW_OK; GstOMXAcquireBufferReturn acq_return; GstClockTimeDiff deadline; OMX_ERRORTYPE err; acq_return = gst_omx_port_acquire_buffer (port, &buf); if (acq_return == GST_OMX_ACQUIRE_BUFFER_ERROR) { goto component_error; } else if (acq_return == GST_OMX_ACQUIRE_BUFFER_FLUSHING) { goto flushing; } else if (acq_return == GST_OMX_ACQUIRE_BUFFER_EOS) { goto eos; } if (!gst_pad_has_current_caps (GST_VIDEO_DECODER_SRC_PAD (self)) || acq_return == GST_OMX_ACQUIRE_BUFFER_RECONFIGURE) { GstVideoCodecState *state; OMX_PARAM_PORTDEFINITIONTYPE port_def; GstVideoFormat format; GST_DEBUG_OBJECT (self, "Port settings have changed, updating caps"); /* Reallocate all buffers */ if (acq_return == GST_OMX_ACQUIRE_BUFFER_RECONFIGURE && gst_omx_port_is_enabled (port)) { err = gst_omx_port_set_enabled (port, FALSE); if (err != OMX_ErrorNone) goto reconfigure_error; err = gst_omx_port_wait_buffers_released (port, 5 * GST_SECOND); if (err != OMX_ErrorNone) goto reconfigure_error; err = gst_omx_video_dec_deallocate_output_buffers (self); if (err != OMX_ErrorNone) goto reconfigure_error; err = gst_omx_port_wait_enabled (port, 1 * GST_SECOND); if (err != OMX_ErrorNone) goto reconfigure_error; } GST_VIDEO_DECODER_STREAM_LOCK (self); gst_omx_port_get_port_definition (port, &port_def); g_assert (port_def.format.video.eCompressionFormat == OMX_VIDEO_CodingUnused); switch (port_def.format.video.eColorFormat) { case OMX_COLOR_FormatYUV420Planar: case OMX_COLOR_FormatYUV420PackedPlanar: GST_DEBUG_OBJECT (self, "Output is I420 (%d)", port_def.format.video.eColorFormat); format = GST_VIDEO_FORMAT_I420; break; case OMX_COLOR_FormatYUV420SemiPlanar: GST_DEBUG_OBJECT (self, "Output is NV12 (%d)", port_def.format.video.eColorFormat); format = GST_VIDEO_FORMAT_NV12; break; default: GST_ERROR_OBJECT (self, "Unsupported color format: %d", port_def.format.video.eColorFormat); if (buf) gst_omx_port_release_buffer (self->dec_out_port, buf); GST_VIDEO_DECODER_STREAM_UNLOCK (self); goto caps_failed; break; } GST_DEBUG_OBJECT (self, "Setting output state: format %s, width %d, height %d", gst_video_format_to_string (format), port_def.format.video.nFrameWidth, port_def.format.video.nFrameHeight); state = gst_video_decoder_set_output_state (GST_VIDEO_DECODER (self), format, port_def.format.video.nFrameWidth, port_def.format.video.nFrameHeight, self->input_state); /* Take framerate and pixel-aspect-ratio from sinkpad caps */ if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) { if (buf) gst_omx_port_release_buffer (self->dec_out_port, buf); gst_video_codec_state_unref (state); goto caps_failed; } gst_video_codec_state_unref (state); GST_VIDEO_DECODER_STREAM_UNLOCK (self); if (acq_return == GST_OMX_ACQUIRE_BUFFER_RECONFIGURE) { err = gst_omx_video_dec_allocate_output_buffers (self); if (err != OMX_ErrorNone) goto reconfigure_error; err = gst_omx_port_populate (port); if (err != OMX_ErrorNone) goto reconfigure_error; err = gst_omx_port_mark_reconfigured (port); if (err != OMX_ErrorNone) goto reconfigure_error; } /* Now get a buffer */ if (acq_return != GST_OMX_ACQUIRE_BUFFER_OK) { return; } } g_assert (acq_return == GST_OMX_ACQUIRE_BUFFER_OK); /* This prevents a deadlock between the srcpad stream * lock and the videocodec stream lock, if ::reset() * is called at the wrong time */ if (gst_omx_port_is_flushing (self->dec_out_port)) { GST_DEBUG_OBJECT (self, "Flushing"); gst_omx_port_release_buffer (self->dec_out_port, buf); goto flushing; } GST_DEBUG_OBJECT (self, "Handling buffer: 0x%08x %lu", buf->omx_buf->nFlags, buf->omx_buf->nTimeStamp); GST_VIDEO_DECODER_STREAM_LOCK (self); frame = _find_nearest_frame (self, buf); if (frame && (deadline = gst_video_decoder_get_max_decode_time (GST_VIDEO_DECODER (self), frame)) < 0) { GST_WARNING_OBJECT (self, "Frame is too late, dropping (deadline %" GST_TIME_FORMAT ")", GST_TIME_ARGS (-deadline)); flow_ret = gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame); frame = NULL; } else if (!frame && buf->omx_buf->nFilledLen > 0) { GstBuffer *outbuf; /* 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 (self->out_port_pool) { gint i, n; GstBufferPoolAcquireParams params = { 0, }; n = port->buffers->len; for (i = 0; i < n; i++) { GstOMXBuffer *tmp = g_ptr_array_index (port->buffers, i); if (tmp == buf) break; } g_assert (i != n); GST_OMX_BUFFER_POOL (self->out_port_pool)->current_buffer_index = i; flow_ret = gst_buffer_pool_acquire_buffer (self->out_port_pool, &outbuf, ¶ms); if (flow_ret != GST_FLOW_OK) { gst_omx_port_release_buffer (port, buf); goto invalid_buffer; } buf = NULL; } else { outbuf = gst_video_decoder_allocate_output_buffer (GST_VIDEO_DECODER (self)); if (!gst_omx_video_dec_fill_buffer (self, buf, outbuf)) { gst_buffer_unref (outbuf); gst_omx_port_release_buffer (port, buf); goto invalid_buffer; } } flow_ret = gst_pad_push (GST_VIDEO_DECODER_SRC_PAD (self), outbuf); } else if (buf->omx_buf->nFilledLen > 0) { if (self->out_port_pool) { gint i, n; GstBufferPoolAcquireParams params = { 0, }; n = port->buffers->len; for (i = 0; i < n; i++) { GstOMXBuffer *tmp = g_ptr_array_index (port->buffers, i); if (tmp == buf) break; } g_assert (i != n); GST_OMX_BUFFER_POOL (self->out_port_pool)->current_buffer_index = i; flow_ret = gst_buffer_pool_acquire_buffer (self->out_port_pool, &frame->output_buffer, ¶ms); if (flow_ret != GST_FLOW_OK) { flow_ret = gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame); frame = NULL; gst_omx_port_release_buffer (port, buf); goto invalid_buffer; } flow_ret = gst_video_decoder_finish_frame (GST_VIDEO_DECODER (self), frame); frame = NULL; buf = NULL; } else { if ((flow_ret = gst_video_decoder_allocate_output_frame (GST_VIDEO_DECODER (self), frame)) == GST_FLOW_OK) { /* FIXME: This currently happens because of a race condition too. * We first need to reconfigure the output port and then the input * port if both need reconfiguration. */ if (!gst_omx_video_dec_fill_buffer (self, buf, frame->output_buffer)) { gst_buffer_replace (&frame->output_buffer, NULL); flow_ret = gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame); frame = NULL; gst_omx_port_release_buffer (port, buf); goto invalid_buffer; } flow_ret = gst_video_decoder_finish_frame (GST_VIDEO_DECODER (self), frame); frame = NULL; } } } else if (frame != NULL) { flow_ret = gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame); frame = NULL; } GST_DEBUG_OBJECT (self, "Read frame from component"); GST_DEBUG_OBJECT (self, "Finished frame: %s", gst_flow_get_name (flow_ret)); if (buf) { err = gst_omx_port_release_buffer (port, buf); if (err != OMX_ErrorNone) goto release_error; } self->downstream_flow_ret = flow_ret; if (flow_ret != GST_FLOW_OK) goto flow_error; GST_VIDEO_DECODER_STREAM_UNLOCK (self); return; component_error: { GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), ("OpenMAX component in error state %s (0x%08x)", gst_omx_component_get_last_error_string (self->dec), gst_omx_component_get_last_error (self->dec))); gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_ERROR; self->started = FALSE; return; } flushing: { GST_DEBUG_OBJECT (self, "Flushing -- stopping task"); gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_FLUSHING; self->started = FALSE; return; } eos: { g_mutex_lock (&self->drain_lock); if (self->draining) { GST_DEBUG_OBJECT (self, "Drained"); self->draining = FALSE; g_cond_broadcast (&self->drain_cond); flow_ret = GST_FLOW_OK; } else { GST_DEBUG_OBJECT (self, "Component signalled EOS"); flow_ret = GST_FLOW_EOS; } g_mutex_unlock (&self->drain_lock); self->downstream_flow_ret = flow_ret; if (flow_ret != GST_FLOW_OK) goto flow_error; GST_VIDEO_DECODER_STREAM_UNLOCK (self); return; } flow_error: { if (flow_ret == GST_FLOW_EOS) { GST_DEBUG_OBJECT (self, "EOS"); gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self)); } else if (flow_ret == GST_FLOW_NOT_LINKED || flow_ret < GST_FLOW_EOS) { 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_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self)); } self->started = FALSE; GST_VIDEO_DECODER_STREAM_UNLOCK (self); return; } reconfigure_error: { GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL), ("Unable to reconfigure output port")); gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_ERROR; self->started = FALSE; return; } invalid_buffer: { GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL), ("Invalid sized input buffer")); gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_NOT_NEGOTIATED; self->started = FALSE; GST_VIDEO_DECODER_STREAM_UNLOCK (self); return; } caps_failed: { GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL), ("Failed to set caps")); gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self)); GST_VIDEO_DECODER_STREAM_UNLOCK (self); self->downstream_flow_ret = GST_FLOW_NOT_NEGOTIATED; self->started = FALSE; return; } release_error: { GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL), ("Failed to relase output buffer to component: %s (0x%08x)", gst_omx_error_to_string (err), err)); gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (self), gst_event_new_eos ()); gst_pad_pause_task (GST_VIDEO_DECODER_SRC_PAD (self)); self->downstream_flow_ret = GST_FLOW_ERROR; self->started = FALSE; GST_VIDEO_DECODER_STREAM_UNLOCK (self); return; } } static gboolean gst_omx_video_dec_start (GstVideoDecoder * decoder) { GstOMXVideoDec *self; self = GST_OMX_VIDEO_DEC (decoder); self->last_upstream_ts = 0; self->eos = FALSE; self->downstream_flow_ret = GST_FLOW_OK; return TRUE; } static gboolean gst_omx_video_dec_stop (GstVideoDecoder * decoder) { GstOMXVideoDec *self; self = GST_OMX_VIDEO_DEC (decoder); GST_DEBUG_OBJECT (self, "Stopping decoder"); gst_omx_port_set_flushing (self->dec_in_port, 5 * GST_SECOND, TRUE); gst_omx_port_set_flushing (self->dec_out_port, 5 * GST_SECOND, TRUE); gst_pad_stop_task (GST_VIDEO_DECODER_SRC_PAD (decoder)); if (gst_omx_component_get_state (self->dec, 0) > OMX_StateIdle) gst_omx_component_set_state (self->dec, OMX_StateIdle); self->downstream_flow_ret = GST_FLOW_FLUSHING; self->started = FALSE; 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_omx_component_get_state (self->dec, 5 * GST_SECOND); gst_buffer_replace (&self->codec_data, NULL); if (self->input_state) gst_video_codec_state_unref (self->input_state); self->input_state = NULL; GST_DEBUG_OBJECT (self, "Stopped decoder"); return TRUE; } typedef struct { GstVideoFormat format; OMX_COLOR_FORMATTYPE type; } VideoNegotiationMap; static void video_negotiation_map_free (VideoNegotiationMap * m) { g_slice_free (VideoNegotiationMap, m); } static GList * gst_omx_video_dec_get_supported_colorformats (GstOMXVideoDec * self) { GstOMXPort *port = self->dec_out_port; GstVideoCodecState *state = self->input_state; OMX_VIDEO_PARAM_PORTFORMATTYPE param; OMX_ERRORTYPE err; GList *negotiation_map = NULL; gint old_index; GST_OMX_INIT_STRUCT (¶m); param.nPortIndex = port->index; param.nIndex = 0; if (!state || state->info.fps_n == 0) param.xFramerate = 0; else param.xFramerate = (state->info.fps_n << 16) / (state->info.fps_d); old_index = -1; do { VideoNegotiationMap *m; err = gst_omx_component_get_parameter (self->dec, OMX_IndexParamVideoPortFormat, ¶m); /* FIXME: Workaround for Bellagio that simply always * returns the same value regardless of nIndex and * never returns OMX_ErrorNoMore */ if (old_index == param.nIndex) break; if (err == OMX_ErrorNone || err == OMX_ErrorNoMore) { switch (param.eColorFormat) { case OMX_COLOR_FormatYUV420Planar: case OMX_COLOR_FormatYUV420PackedPlanar: m = g_slice_new (VideoNegotiationMap); m->format = GST_VIDEO_FORMAT_I420; m->type = param.eColorFormat; negotiation_map = g_list_append (negotiation_map, m); GST_DEBUG_OBJECT (self, "Component supports I420 (%d) at index %d", param.eColorFormat, param.nIndex); break; case OMX_COLOR_FormatYUV420SemiPlanar: m = g_slice_new (VideoNegotiationMap); m->format = GST_VIDEO_FORMAT_NV12; m->type = param.eColorFormat; negotiation_map = g_list_append (negotiation_map, m); GST_DEBUG_OBJECT (self, "Component supports NV12 (%d) at index %d", param.eColorFormat, param.nIndex); break; default: GST_DEBUG_OBJECT (self, "Component supports unsupported color format %d at index %d", param.eColorFormat, param.nIndex); break; } } old_index = param.nIndex++; } while (err == OMX_ErrorNone); return negotiation_map; } static gboolean gst_omx_video_dec_negotiate (GstOMXVideoDec * self) { OMX_VIDEO_PARAM_PORTFORMATTYPE param; OMX_ERRORTYPE err; GstCaps *comp_supported_caps; GList *negotiation_map = NULL, *l; GstCaps *templ_caps, *intersection; GstVideoFormat format; GstStructure *s; const gchar *format_str; GST_DEBUG_OBJECT (self, "Trying to negotiate a video format with downstream"); templ_caps = gst_pad_get_pad_template_caps (GST_VIDEO_DECODER_SRC_PAD (self)); intersection = gst_pad_peer_query_caps (GST_VIDEO_DECODER_SRC_PAD (self), templ_caps); gst_caps_unref (templ_caps); GST_DEBUG_OBJECT (self, "Allowed downstream caps: %" GST_PTR_FORMAT, intersection); negotiation_map = gst_omx_video_dec_get_supported_colorformats (self); comp_supported_caps = gst_caps_new_empty (); for (l = negotiation_map; l; l = l->next) { VideoNegotiationMap *map = l->data; gst_caps_append_structure (comp_supported_caps, gst_structure_new ("video/x-raw", "format", G_TYPE_STRING, gst_video_format_to_string (map->format), NULL)); } if (!gst_caps_is_empty (comp_supported_caps)) { GstCaps *tmp; tmp = gst_caps_intersect (comp_supported_caps, intersection); gst_caps_unref (intersection); intersection = tmp; } gst_caps_unref (comp_supported_caps); if (gst_caps_is_empty (intersection)) { gst_caps_unref (intersection); GST_ERROR_OBJECT (self, "Empty caps"); g_list_free_full (negotiation_map, (GDestroyNotify) video_negotiation_map_free); return FALSE; } intersection = gst_caps_truncate (intersection); intersection = gst_caps_fixate (intersection); s = gst_caps_get_structure (intersection, 0); format_str = gst_structure_get_string (s, "format"); if (!format_str || (format = gst_video_format_from_string (format_str)) == GST_VIDEO_FORMAT_UNKNOWN) { GST_ERROR_OBJECT (self, "Invalid caps: %" GST_PTR_FORMAT, intersection); g_list_free_full (negotiation_map, (GDestroyNotify) video_negotiation_map_free); return FALSE; } GST_OMX_INIT_STRUCT (¶m); param.nPortIndex = self->dec_out_port->index; for (l = negotiation_map; l; l = l->next) { VideoNegotiationMap *m = l->data; if (m->format == format) { param.eColorFormat = m->type; break; } } GST_DEBUG_OBJECT (self, "Negotiating color format %s (%d)", format_str, param.eColorFormat); /* We must find something here */ g_assert (l != NULL); g_list_free_full (negotiation_map, (GDestroyNotify) video_negotiation_map_free); err = gst_omx_component_set_parameter (self->dec, OMX_IndexParamVideoPortFormat, ¶m); if (err != OMX_ErrorNone) { GST_ERROR_OBJECT (self, "Failed to set video port format: %s (0x%08x)", gst_omx_error_to_string (err), err); } return (err == OMX_ErrorNone); } static gboolean gst_omx_video_dec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state) { GstOMXVideoDec *self; GstOMXVideoDecClass *klass; GstVideoInfo *info = &state->info; gboolean is_format_change = FALSE; gboolean needs_disable = FALSE; OMX_PARAM_PORTDEFINITIONTYPE port_def; self = GST_OMX_VIDEO_DEC (decoder); klass = GST_OMX_VIDEO_DEC_GET_CLASS (decoder); GST_DEBUG_OBJECT (self, "Setting new caps %" GST_PTR_FORMAT, state->caps); gst_omx_port_get_port_definition (self->dec_in_port, &port_def); /* 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 |= port_def.format.video.nFrameWidth != info->width; is_format_change |= port_def.format.video.nFrameHeight != info->height; is_format_change |= (port_def.format.video.xFramerate == 0 && info->fps_n != 0) || (port_def.format.video.xFramerate != (info->fps_n << 16) / (info->fps_d)); is_format_change |= (self->codec_data != state->codec_data); if (klass->is_format_change) is_format_change |= klass->is_format_change (self, self->dec_in_port, state); needs_disable = gst_omx_component_get_state (self->dec, GST_CLOCK_TIME_NONE) != OMX_StateLoaded; /* If the component is not in Loaded state and a real format change happens * we have to disable the port and re-allocate all buffers. If no real * format change happened we can just exit here. */ if (needs_disable && !is_format_change) { GST_DEBUG_OBJECT (self, "Already running and caps did not change the format"); if (self->input_state) gst_video_codec_state_unref (self->input_state); self->input_state = gst_video_codec_state_ref (state); return TRUE; } if (needs_disable && is_format_change) { GST_DEBUG_OBJECT (self, "Need to disable and drain decoder"); gst_omx_video_dec_drain (self, FALSE); gst_omx_port_set_flushing (self->dec_out_port, 5 * GST_SECOND, TRUE); /* Wait until the srcpad loop is finished, * unlock GST_VIDEO_DECODER_STREAM_LOCK to prevent deadlocks * caused by using this lock from inside the loop function */ GST_VIDEO_DECODER_STREAM_UNLOCK (self); gst_pad_stop_task (GST_VIDEO_DECODER_SRC_PAD (decoder)); GST_VIDEO_DECODER_STREAM_LOCK (self); if (klass->cdata.hacks & GST_OMX_HACK_NO_COMPONENT_RECONFIGURE) { GST_VIDEO_DECODER_STREAM_UNLOCK (self); gst_omx_video_dec_stop (GST_VIDEO_DECODER (self)); gst_omx_video_dec_close (GST_VIDEO_DECODER (self)); GST_VIDEO_DECODER_STREAM_LOCK (self); if (!gst_omx_video_dec_open (GST_VIDEO_DECODER (self))) return FALSE; needs_disable = FALSE; } else { if (gst_omx_port_set_enabled (self->dec_in_port, FALSE) != OMX_ErrorNone) return FALSE; if (gst_omx_port_set_enabled (self->dec_out_port, FALSE) != OMX_ErrorNone) return FALSE; if (gst_omx_port_wait_buffers_released (self->dec_in_port, 5 * GST_SECOND) != OMX_ErrorNone) return FALSE; if (gst_omx_port_wait_buffers_released (self->dec_out_port, 1 * GST_SECOND) != OMX_ErrorNone) return FALSE; if (gst_omx_port_deallocate_buffers (self->dec_in_port) != OMX_ErrorNone) return FALSE; if (gst_omx_port_deallocate_buffers (self->dec_out_port) != OMX_ErrorNone) return FALSE; if (gst_omx_port_wait_enabled (self->dec_in_port, 1 * GST_SECOND) != OMX_ErrorNone) return FALSE; if (gst_omx_port_wait_enabled (self->dec_out_port, 1 * GST_SECOND) != OMX_ErrorNone) return FALSE; } if (self->input_state) gst_video_codec_state_unref (self->input_state); self->input_state = NULL; GST_DEBUG_OBJECT (self, "Decoder drained and disabled"); } port_def.format.video.nFrameWidth = info->width; port_def.format.video.nFrameHeight = info->height; if (info->fps_n == 0) port_def.format.video.xFramerate = 0; else port_def.format.video.xFramerate = (info->fps_n << 16) / (info->fps_d); GST_DEBUG_OBJECT (self, "Setting inport port definition"); if (gst_omx_port_update_port_definition (self->dec_in_port, &port_def) != OMX_ErrorNone) return FALSE; if (klass->set_format) { if (!klass->set_format (self, self->dec_in_port, state)) { GST_ERROR_OBJECT (self, "Subclass failed to set the new format"); return FALSE; } } GST_DEBUG_OBJECT (self, "Updating outport port definition"); if (gst_omx_port_update_port_definition (self->dec_out_port, NULL) != OMX_ErrorNone) return FALSE; gst_buffer_replace (&self->codec_data, state->codec_data); self->input_state = gst_video_codec_state_ref (state); GST_DEBUG_OBJECT (self, "Enabling component"); if (needs_disable) { if (gst_omx_port_set_enabled (self->dec_in_port, TRUE) != OMX_ErrorNone) return FALSE; if (gst_omx_port_allocate_buffers (self->dec_in_port) != OMX_ErrorNone) return FALSE; if (gst_omx_port_wait_enabled (self->dec_in_port, 5 * GST_SECOND) != OMX_ErrorNone) return FALSE; if (gst_omx_port_mark_reconfigured (self->dec_in_port) != OMX_ErrorNone) return FALSE; } else { if (!gst_omx_video_dec_negotiate (self)) GST_LOG_OBJECT (self, "Negotiation failed, will get output format later"); if (gst_omx_component_set_state (self->dec, OMX_StateIdle) != OMX_ErrorNone) return FALSE; /* Need to allocate buffers to reach Idle state */ if (gst_omx_port_allocate_buffers (self->dec_in_port) != OMX_ErrorNone) return FALSE; /* And disable output port */ if (gst_omx_port_set_enabled (self->dec_out_port, FALSE) != OMX_ErrorNone) return FALSE; if (gst_omx_port_wait_enabled (self->dec_out_port, 1 * GST_SECOND) != OMX_ErrorNone) return FALSE; if (gst_omx_component_get_state (self->dec, GST_CLOCK_TIME_NONE) != OMX_StateIdle) return FALSE; if (gst_omx_component_set_state (self->dec, OMX_StateExecuting) != OMX_ErrorNone) return FALSE; if (gst_omx_component_get_state (self->dec, GST_CLOCK_TIME_NONE) != OMX_StateExecuting) return FALSE; } /* Unset flushing to allow ports to accept data again */ gst_omx_port_set_flushing (self->dec_in_port, 5 * GST_SECOND, FALSE); gst_omx_port_set_flushing (self->dec_out_port, 5 * GST_SECOND, FALSE); if (gst_omx_component_get_last_error (self->dec) != OMX_ErrorNone) { GST_ERROR_OBJECT (self, "Component in error state: %s (0x%08x)", gst_omx_component_get_last_error_string (self->dec), gst_omx_component_get_last_error (self->dec)); return FALSE; } /* Start the srcpad loop again */ GST_DEBUG_OBJECT (self, "Starting task again"); self->downstream_flow_ret = GST_FLOW_OK; gst_pad_start_task (GST_VIDEO_DECODER_SRC_PAD (self), (GstTaskFunction) gst_omx_video_dec_loop, decoder, NULL); return TRUE; } static gboolean gst_omx_video_dec_reset (GstVideoDecoder * decoder, gboolean hard) { GstOMXVideoDec *self; self = GST_OMX_VIDEO_DEC (decoder); /* FIXME: Handle different values of hard */ GST_DEBUG_OBJECT (self, "Resetting decoder"); gst_omx_port_set_flushing (self->dec_in_port, 5 * GST_SECOND, TRUE); gst_omx_port_set_flushing (self->dec_out_port, 5 * GST_SECOND, TRUE); /* Wait until the srcpad loop is finished, * unlock GST_VIDEO_DECODER_STREAM_LOCK to prevent deadlocks * caused by using this lock from inside the loop function */ GST_VIDEO_DECODER_STREAM_UNLOCK (self); GST_PAD_STREAM_LOCK (GST_VIDEO_DECODER_SRC_PAD (self)); GST_PAD_STREAM_UNLOCK (GST_VIDEO_DECODER_SRC_PAD (self)); GST_VIDEO_DECODER_STREAM_LOCK (self); gst_omx_port_set_flushing (self->dec_in_port, 5 * GST_SECOND, FALSE); gst_omx_port_set_flushing (self->dec_out_port, 5 * GST_SECOND, FALSE); gst_omx_port_populate (self->dec_out_port); /* 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_VIDEO_DECODER_SRC_PAD (self), (GstTaskFunction) gst_omx_video_dec_loop, decoder, NULL); GST_DEBUG_OBJECT (self, "Reset decoder"); return TRUE; } static GstFlowReturn gst_omx_video_dec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame) { GstOMXAcquireBufferReturn acq_ret = GST_OMX_ACQUIRE_BUFFER_ERROR; GstOMXVideoDec *self; GstOMXVideoDecClass *klass; GstOMXPort *port; GstOMXBuffer *buf; GstBuffer *codec_data = NULL; guint offset = 0, size; GstClockTime timestamp, duration, timestamp_offset = 0; OMX_ERRORTYPE err; self = GST_OMX_VIDEO_DEC (decoder); klass = GST_OMX_VIDEO_DEC_GET_CLASS (self); GST_DEBUG_OBJECT (self, "Handling frame"); if (self->eos) { GST_WARNING_OBJECT (self, "Got frame after EOS"); gst_video_codec_frame_unref (frame); return GST_FLOW_EOS; } timestamp = frame->pts; duration = frame->duration; if (self->downstream_flow_ret != GST_FLOW_OK) { gst_video_codec_frame_unref (frame); return self->downstream_flow_ret; } if (klass->prepare_frame) { GstFlowReturn ret; ret = klass->prepare_frame (self, frame); if (ret != GST_FLOW_OK) { GST_ERROR_OBJECT (self, "Preparing frame failed: %s", gst_flow_get_name (ret)); gst_video_codec_frame_unref (frame); return ret; } } port = self->dec_in_port; size = gst_buffer_get_size (frame->input_buffer); while (offset < size) { /* 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_VIDEO_DECODER_STREAM_UNLOCK (self); acq_ret = gst_omx_port_acquire_buffer (port, &buf); if (acq_ret == GST_OMX_ACQUIRE_BUFFER_ERROR) { GST_VIDEO_DECODER_STREAM_LOCK (self); goto component_error; } else if (acq_ret == GST_OMX_ACQUIRE_BUFFER_FLUSHING) { GST_VIDEO_DECODER_STREAM_LOCK (self); goto flushing; } else if (acq_ret == GST_OMX_ACQUIRE_BUFFER_RECONFIGURE) { /* Reallocate all buffers */ err = gst_omx_port_set_enabled (port, FALSE); if (err != OMX_ErrorNone) { GST_VIDEO_DECODER_STREAM_LOCK (self); goto reconfigure_error; } err = gst_omx_port_wait_buffers_released (port, 5 * GST_SECOND); if (err != OMX_ErrorNone) { GST_VIDEO_DECODER_STREAM_LOCK (self); goto reconfigure_error; } err = gst_omx_port_deallocate_buffers (port); if (err != OMX_ErrorNone) { GST_VIDEO_DECODER_STREAM_LOCK (self); goto reconfigure_error; } err = gst_omx_port_wait_enabled (port, 1 * GST_SECOND); if (err != OMX_ErrorNone) { GST_VIDEO_DECODER_STREAM_LOCK (self); goto reconfigure_error; } err = gst_omx_port_set_enabled (port, TRUE); if (err != OMX_ErrorNone) { GST_VIDEO_DECODER_STREAM_LOCK (self); goto reconfigure_error; } err = gst_omx_port_allocate_buffers (port); if (err != OMX_ErrorNone) { GST_VIDEO_DECODER_STREAM_LOCK (self); goto reconfigure_error; } err = gst_omx_port_wait_enabled (port, 5 * GST_SECOND); if (err != OMX_ErrorNone) { GST_VIDEO_DECODER_STREAM_LOCK (self); goto reconfigure_error; } err = gst_omx_port_mark_reconfigured (port); if (err != OMX_ErrorNone) { GST_VIDEO_DECODER_STREAM_LOCK (self); goto reconfigure_error; } /* Now get a new buffer and fill it */ GST_VIDEO_DECODER_STREAM_LOCK (self); continue; } GST_VIDEO_DECODER_STREAM_LOCK (self); g_assert (acq_ret == GST_OMX_ACQUIRE_BUFFER_OK && buf != NULL); if (buf->omx_buf->nAllocLen - buf->omx_buf->nOffset <= 0) { gst_omx_port_release_buffer (port, buf); goto full_buffer; } if (self->downstream_flow_ret != GST_FLOW_OK) { gst_omx_port_release_buffer (port, buf); goto flow_error; } if (self->codec_data) { GST_DEBUG_OBJECT (self, "Passing codec data to the component"); codec_data = self->codec_data; if (buf->omx_buf->nAllocLen - buf->omx_buf->nOffset < gst_buffer_get_size (codec_data)) { gst_omx_port_release_buffer (port, buf); goto too_large_codec_data; } buf->omx_buf->nFlags |= OMX_BUFFERFLAG_CODECCONFIG; buf->omx_buf->nFilledLen = gst_buffer_get_size (codec_data);; gst_buffer_extract (codec_data, 0, buf->omx_buf->pBuffer + buf->omx_buf->nOffset, buf->omx_buf->nFilledLen); self->started = TRUE; err = gst_omx_port_release_buffer (port, buf); gst_buffer_replace (&self->codec_data, NULL); if (err != OMX_ErrorNone) goto release_error; /* Acquire new buffer for the actual frame */ continue; } /* Now handle the frame */ GST_DEBUG_OBJECT (self, "Passing frame offset %d to the component", offset); /* Copy the buffer content in chunks of size as requested * by the port */ buf->omx_buf->nFilledLen = MIN (size - offset, buf->omx_buf->nAllocLen - buf->omx_buf->nOffset); gst_buffer_extract (frame->input_buffer, offset, buf->omx_buf->pBuffer + buf->omx_buf->nOffset, buf->omx_buf->nFilledLen); /* 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, size); } if (timestamp != GST_CLOCK_TIME_NONE) { buf->omx_buf->nTimeStamp = gst_util_uint64_scale (timestamp + timestamp_offset, OMX_TICKS_PER_SECOND, GST_SECOND); self->last_upstream_ts = timestamp + timestamp_offset; } if (duration != GST_CLOCK_TIME_NONE) { buf->omx_buf->nTickCount = gst_util_uint64_scale (buf->omx_buf->nFilledLen, duration, size); self->last_upstream_ts += duration; } if (offset == 0) { BufferIdentification *id = g_slice_new0 (BufferIdentification); if (GST_VIDEO_CODEC_FRAME_IS_SYNC_POINT (frame)) buf->omx_buf->nFlags |= OMX_BUFFERFLAG_SYNCFRAME; id->timestamp = buf->omx_buf->nTimeStamp; gst_video_codec_frame_set_user_data (frame, id, (GDestroyNotify) buffer_identification_free); } /* TODO: Set flags * - OMX_BUFFERFLAG_DECODEONLY for buffers that are outside * the segment * - OMX_BUFFERFLAG_ENDOFFRAME for parsed input */ offset += buf->omx_buf->nFilledLen; self->started = TRUE; err = gst_omx_port_release_buffer (port, buf); if (err != OMX_ErrorNone) goto release_error; } gst_video_codec_frame_unref (frame); GST_DEBUG_OBJECT (self, "Passed frame to component"); return self->downstream_flow_ret; full_buffer: { gst_video_codec_frame_unref (frame); GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), ("Got OpenMAX buffer with no free space (%p, %u/%u)", buf, buf->omx_buf->nOffset, buf->omx_buf->nAllocLen)); return GST_FLOW_ERROR; } flow_error: { gst_video_codec_frame_unref (frame); return self->downstream_flow_ret; } too_large_codec_data: { gst_video_codec_frame_unref (frame); GST_ELEMENT_ERROR (self, STREAM, FORMAT, (NULL), ("codec_data larger than supported by OpenMAX port (%u > %u)", gst_buffer_get_size (codec_data), self->dec_in_port->port_def.nBufferSize)); return GST_FLOW_ERROR; } component_error: { gst_video_codec_frame_unref (frame); GST_ELEMENT_ERROR (self, LIBRARY, FAILED, (NULL), ("OpenMAX component in error state %s (0x%08x)", gst_omx_component_get_last_error_string (self->dec), gst_omx_component_get_last_error (self->dec))); return GST_FLOW_ERROR; } flushing: { gst_video_codec_frame_unref (frame); GST_DEBUG_OBJECT (self, "Flushing -- returning FLUSHING"); return GST_FLOW_FLUSHING; } reconfigure_error: { gst_video_codec_frame_unref (frame); GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL), ("Unable to reconfigure input port")); return GST_FLOW_ERROR; } release_error: { gst_video_codec_frame_unref (frame); GST_ELEMENT_ERROR (self, LIBRARY, SETTINGS, (NULL), ("Failed to relase input buffer to component: %s (0x%08x)", gst_omx_error_to_string (err), err)); return GST_FLOW_ERROR; } } static GstFlowReturn gst_omx_video_dec_finish (GstVideoDecoder * decoder) { GstOMXVideoDec *self; self = GST_OMX_VIDEO_DEC (decoder); return gst_omx_video_dec_drain (self, TRUE); } static GstFlowReturn gst_omx_video_dec_drain (GstOMXVideoDec * self, gboolean is_eos) { GstOMXVideoDecClass *klass; GstOMXBuffer *buf; GstOMXAcquireBufferReturn acq_ret; OMX_ERRORTYPE err; GST_DEBUG_OBJECT (self, "Draining component"); klass = GST_OMX_VIDEO_DEC_GET_CLASS (self); if (!self->started) { GST_DEBUG_OBJECT (self, "Component not started yet"); return GST_FLOW_OK; } self->started = FALSE; /* Don't send EOS buffer twice, this doesn't work */ if (self->eos) { GST_DEBUG_OBJECT (self, "Component is EOS already"); return GST_FLOW_OK; } if (is_eos) self->eos = TRUE; if ((klass->cdata.hacks & GST_OMX_HACK_NO_EMPTY_EOS_BUFFER)) { GST_WARNING_OBJECT (self, "Component does not support empty EOS buffers"); 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_VIDEO_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. */ acq_ret = gst_omx_port_acquire_buffer (self->dec_in_port, &buf); if (acq_ret != GST_OMX_ACQUIRE_BUFFER_OK) { GST_VIDEO_DECODER_STREAM_LOCK (self); GST_ERROR_OBJECT (self, "Failed to acquire buffer for draining: %d", acq_ret); return GST_FLOW_ERROR; } g_mutex_lock (&self->drain_lock); self->draining = TRUE; buf->omx_buf->nFilledLen = 0; buf->omx_buf->nTimeStamp = gst_util_uint64_scale (self->last_upstream_ts, OMX_TICKS_PER_SECOND, GST_SECOND); buf->omx_buf->nTickCount = 0; buf->omx_buf->nFlags |= OMX_BUFFERFLAG_EOS; err = gst_omx_port_release_buffer (self->dec_in_port, buf); if (err != OMX_ErrorNone) { GST_ERROR_OBJECT (self, "Failed to drain component: %s (0x%08x)", gst_omx_error_to_string (err), err); GST_VIDEO_DECODER_STREAM_LOCK (self); return GST_FLOW_ERROR; } GST_DEBUG_OBJECT (self, "Waiting until component is drained"); if (G_UNLIKELY (self->dec->hacks & GST_OMX_HACK_DRAIN_MAY_NOT_RETURN)) { gint64 wait_until = g_get_monotonic_time () + G_TIME_SPAN_SECOND / 2; if (!g_cond_wait_until (&self->drain_cond, &self->drain_lock, wait_until)) GST_WARNING_OBJECT (self, "Drain timed out"); else GST_DEBUG_OBJECT (self, "Drained component"); } else { g_cond_wait (&self->drain_cond, &self->drain_lock); GST_DEBUG_OBJECT (self, "Drained component"); } g_mutex_unlock (&self->drain_lock); GST_VIDEO_DECODER_STREAM_LOCK (self); self->started = FALSE; return GST_FLOW_OK; } static gboolean gst_omx_video_dec_decide_allocation (GstVideoDecoder * bdec, GstQuery * query) { GstBufferPool *pool; GstStructure *config; if (!GST_VIDEO_DECODER_CLASS (gst_omx_video_dec_parent_class)->decide_allocation (bdec, query)) return FALSE; g_assert (gst_query_get_n_allocation_pools (query) > 0); gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL); g_assert (pool != NULL); config = gst_buffer_pool_get_config (pool); if (gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL)) { gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META); } gst_buffer_pool_set_config (pool, config); gst_object_unref (pool); return TRUE; }