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gstreamer/sys/mfc/gstmfcdec.c

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/*
* Copyright (C) 2012 Collabora Ltd.
* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstmfcdec.h"
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (gst_mfc_dec_debug);
#define GST_CAT_DEFAULT gst_mfc_dec_debug
static gboolean gst_mfc_dec_open (GstVideoDecoder * decoder);
static gboolean gst_mfc_dec_start (GstVideoDecoder * decoder);
static gboolean gst_mfc_dec_stop (GstVideoDecoder * decoder);
static gboolean gst_mfc_dec_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state);
static gboolean gst_mfc_dec_flush (GstVideoDecoder * decoder);
static GstFlowReturn gst_mfc_dec_finish (GstVideoDecoder * decoder);
static GstFlowReturn gst_mfc_dec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame);
static gboolean gst_mfc_dec_negotiate (GstVideoDecoder * decoder);
static gboolean gst_mfc_dec_decide_allocation (GstVideoDecoder * decoder,
GstQuery * query);
/* *INDENT-OFF* */
static GstStaticPadTemplate gst_mfc_dec_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h264, "
"profile = (string) {constrained-baseline, baseline, main, high}, "
"parsed = (boolean) true, "
"width = (int) [32, 1920], "
"height = (int) [32, 1080], "
"stream-format = (string) byte-stream, "
"alignment = (string) au; "
"video/mpeg, "
"mpegversion = (int) 4, "
"profile = (string) {simple, advanced-simple}, "
"parsed = (boolean) true, "
"width = (int) [32, 1920], "
"height = (int) [32, 1080], "
"systemstream = (boolean) false; "
"video/x-h263, "
"variant = (string) itu, "
"profile = (string) {0, 1, 2, 3}, "
"parsed = (boolean) true, "
"width = (int) [32, 1920], "
"height = (int) [32, 1080]; "
"video/mpeg, "
"mpegversion = (int) [1, 2], "
"parsed = (boolean) true, "
"width = (int) [32, 1920], "
"height = (int) [32, 1080], "
"systemstream = (boolean) false")
);
static GstStaticPadTemplate gst_mfc_dec_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ NV12, I420, YV12, RGBx }"))
);
/* *INDENT-ON* */
#define parent_class gst_mfc_dec_parent_class
G_DEFINE_TYPE (GstMFCDec, gst_mfc_dec, GST_TYPE_VIDEO_DECODER);
static void
gst_mfc_dec_class_init (GstMFCDecClass * klass)
{
GstElementClass *element_class;
GstVideoDecoderClass *video_decoder_class;
element_class = (GstElementClass *) klass;
video_decoder_class = (GstVideoDecoderClass *) klass;
mfc_dec_init_debug ();
fimc_init_debug ();
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_mfc_dec_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_mfc_dec_sink_template));
gst_element_class_set_static_metadata (element_class,
"Samsung Exynos MFC decoder",
"Codec/Decoder/Video",
"Decode video streams via Samsung Exynos",
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
video_decoder_class->open = GST_DEBUG_FUNCPTR (gst_mfc_dec_open);
video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_mfc_dec_start);
video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_mfc_dec_stop);
video_decoder_class->finish = GST_DEBUG_FUNCPTR (gst_mfc_dec_finish);
video_decoder_class->flush = GST_DEBUG_FUNCPTR (gst_mfc_dec_flush);
video_decoder_class->set_format = GST_DEBUG_FUNCPTR (gst_mfc_dec_set_format);
video_decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_mfc_dec_negotiate);
video_decoder_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_mfc_dec_decide_allocation);
video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_mfc_dec_handle_frame);
GST_DEBUG_CATEGORY_INIT (gst_mfc_dec_debug, "mfcdec", 0,
"Samsung Exynos MFC Decoder");
}
static void
gst_mfc_dec_init (GstMFCDec * self)
{
GstVideoDecoder *decoder = (GstVideoDecoder *) self;
gst_video_decoder_set_packetized (decoder, TRUE);
gst_video_decoder_set_needs_format (decoder, TRUE);
}
static gboolean
gst_mfc_dec_open (GstVideoDecoder * decoder)
{
GstMFCDec *self = GST_MFC_DEC (decoder);
GST_DEBUG_OBJECT (self, "Opening");
/* Just check here once if we can create a MFC context, i.e.
* if the hardware is available
*/
self->context = mfc_dec_create (CODEC_TYPE_H264);
if (!self->context) {
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to initialize MFC decoder context"), (NULL));
return FALSE;
}
mfc_dec_destroy (self->context);
self->context = NULL;
return TRUE;
}
static gboolean
gst_mfc_dec_start (GstVideoDecoder * decoder)
{
GstMFCDec *self = GST_MFC_DEC (decoder);
GST_DEBUG_OBJECT (self, "Starting");
self->width = 0;
self->height = 0;
self->crop_left = 0;
self->crop_top = 0;
self->crop_width = 0;
self->crop_height = 0;
self->format = GST_VIDEO_FORMAT_UNKNOWN;
self->src_stride[0] = 0;
self->src_stride[1] = 0;
self->src_stride[2] = 0;
self->dst[0] = NULL;
self->dst[1] = NULL;
self->dst[2] = NULL;
self->dst_stride[0] = 0;
self->dst_stride[1] = 0;
self->dst_stride[2] = 0;
self->mmap = TRUE;
return TRUE;
}
static gboolean
gst_mfc_dec_stop (GstVideoDecoder * video_decoder)
{
GstMFCDec *self = GST_MFC_DEC (video_decoder);
GST_DEBUG_OBJECT (self, "Stopping");
gst_buffer_replace (&self->codec_data, NULL);
if (self->input_state) {
gst_video_codec_state_unref (self->input_state);
self->input_state = NULL;
}
if (self->context) {
mfc_dec_destroy (self->context);
self->context = NULL;
}
self->initialized = FALSE;
if (self->fimc) {
fimc_free (self->fimc);
self->fimc = NULL;
}
GST_DEBUG_OBJECT (self, "Stopped");
return TRUE;
}
static gboolean
gst_mfc_dec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
{
GstMFCDec *self = GST_MFC_DEC (decoder);
GstStructure *s;
GST_DEBUG_OBJECT (self, "Setting format: %" GST_PTR_FORMAT, state->caps);
if (self->input_state
&& gst_caps_can_intersect (self->input_state->caps, state->caps)) {
GST_DEBUG_OBJECT (self, "Compatible caps");
goto done;
}
s = gst_caps_get_structure (state->caps, 0);
if (self->context) {
mfc_dec_destroy (self->context);
self->context = NULL;
}
self->initialized = FALSE;
if (gst_structure_has_name (s, "video/x-h264")) {
self->context = mfc_dec_create (CODEC_TYPE_H264);
if (!self->context) {
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to initialize MFC decoder context"), (NULL));
return FALSE;
}
} else if (gst_structure_has_name (s, "video/mpeg")) {
gint mpegversion;
if (!gst_structure_get_int (s, "mpegversion", &mpegversion))
return FALSE;
if (mpegversion != 1 && mpegversion != 2 && mpegversion != 4)
return FALSE;
if (mpegversion == 1 || mpegversion == 2) {
self->context = mfc_dec_create (CODEC_TYPE_MPEG2);
} else {
self->context = mfc_dec_create (CODEC_TYPE_MPEG4);
}
if (!self->context) {
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to initialize MFC decoder context"), (NULL));
return FALSE;
}
} else if (gst_structure_has_name (s, "video/x-h263")) {
self->context = mfc_dec_create (CODEC_TYPE_H263);
if (!self->context) {
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to initialize MFC decoder context"), (NULL));
return FALSE;
}
} else {
g_return_val_if_reached (FALSE);
}
if (mfc_dec_init_input (self->context, 1) < 0) {
GST_ELEMENT_ERROR (self, LIBRARY, INIT,
("Failed to initialize MFC decoder context input"), (NULL));
return FALSE;
}
gst_buffer_replace (&self->codec_data, state->codec_data);
done:
if (self->input_state)
gst_video_codec_state_unref (self->input_state);
self->input_state = gst_video_codec_state_ref (state);
return TRUE;
}
static gboolean
gst_mfc_dec_flush (GstVideoDecoder * decoder)
{
GstMFCDec *self = GST_MFC_DEC (decoder);
GST_DEBUG_OBJECT (self, "Flushing");
if (self->context)
mfc_dec_flush (self->context);
return TRUE;
}
static GstFlowReturn
gst_mfc_dec_queue_input (GstMFCDec * self, GstVideoCodecFrame * frame)
{
GstFlowReturn ret = GST_FLOW_OK;
gint mfc_ret;
GstBuffer *inbuf = NULL;
struct mfc_buffer *mfc_inbuf = NULL;
guint8 *mfc_inbuf_data;
gint mfc_inbuf_max_size, mfc_inbuf_size = 0;
GstMapInfo map;
struct timeval timestamp;
GST_DEBUG_OBJECT (self, "Dequeueing input");
if ((mfc_ret = mfc_dec_dequeue_input (self->context, &mfc_inbuf)) < 0) {
if (mfc_ret == -2) {
GST_DEBUG_OBJECT (self, "Timeout dequeueing input, trying again");
mfc_ret = mfc_dec_dequeue_input (self->context, &mfc_inbuf);
}
if (mfc_ret < 0)
goto dequeue_error;
}
mfc_inbuf_data = (guint8 *) mfc_buffer_get_input_data (mfc_inbuf);
g_assert (mfc_inbuf_data != NULL);
mfc_inbuf_max_size = mfc_buffer_get_input_max_size (mfc_inbuf);
GST_DEBUG_OBJECT (self, "Have input buffer %p with max size %d",
mfc_inbuf_data, mfc_inbuf_max_size);
g_assert (mfc_inbuf != NULL);
if (frame) {
if (self->codec_data) {
inbuf = self->codec_data;
gst_buffer_map (inbuf, &map, GST_MAP_READ);
if ((gsize) mfc_inbuf_max_size < map.size)
goto too_small_inbuf;
memcpy (mfc_inbuf_data, map.data, map.size);
mfc_inbuf_size += map.size;
mfc_inbuf_data += map.size;
mfc_inbuf_max_size -= map.size;
gst_buffer_unmap (inbuf, &map);
gst_buffer_replace (&self->codec_data, NULL);
inbuf = NULL;
}
inbuf = frame->input_buffer;
gst_buffer_map (inbuf, &map, GST_MAP_READ);
if ((gsize) mfc_inbuf_max_size < map.size)
goto too_small_inbuf;
memcpy (mfc_inbuf_data, map.data, map.size);
mfc_inbuf_size += map.size;
mfc_inbuf_data += map.size;
mfc_inbuf_max_size -= map.size;
mfc_buffer_set_input_size (mfc_inbuf, mfc_inbuf_size);
gst_buffer_unmap (inbuf, &map);
inbuf = NULL;
timestamp.tv_usec = 0;
timestamp.tv_sec = frame->system_frame_number;
} else {
GST_DEBUG_OBJECT (self, "Passing EOS input buffer");
mfc_buffer_set_input_size (mfc_inbuf, 0);
timestamp.tv_usec = 0;
timestamp.tv_sec = -1;
}
if ((mfc_ret =
mfc_dec_enqueue_input (self->context, mfc_inbuf, &timestamp)) < 0)
goto enqueue_error;
done:
return ret;
dequeue_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
("Failed to dequeue input buffer"), ("mfc_dec_dequeue_input: %d",
mfc_ret));
ret = GST_FLOW_ERROR;
goto done;
}
too_small_inbuf:
{
GST_ELEMENT_ERROR (self, STREAM, FORMAT, ("Too large input frames"),
("Maximum size %d, got %" G_GSIZE_FORMAT, mfc_inbuf_max_size,
map.size));
ret = GST_FLOW_ERROR;
gst_buffer_unmap (inbuf, &map);
goto done;
}
enqueue_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
("Failed to enqueue input buffer"), ("mfc_dec_enqueue_input: %d",
mfc_ret));
ret = GST_FLOW_ERROR;
goto done;
}
}
static gboolean
gst_mfc_dec_create_fimc (GstMFCDec * self, GstVideoCodecState * state)
{
Fimc *fimc;
FimcColorFormat fimc_format;
fimc = self->fimc;
if (fimc) {
fimc_free (fimc);
self->fimc = fimc = NULL;
}
fimc = fimc_new ();
switch (state->info.finfo->format) {
case GST_VIDEO_FORMAT_RGBx:
fimc_format = FIMC_COLOR_FORMAT_RGB32;
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
fimc_format = FIMC_COLOR_FORMAT_YUV420P;
break;
case GST_VIDEO_FORMAT_NV12:
fimc_format = FIMC_COLOR_FORMAT_YUV420SP;
break;
default:
g_assert_not_reached ();
break;
}
if (fimc_set_src_format (fimc, FIMC_COLOR_FORMAT_YUV420SPT, self->width,
self->height, self->src_stride, self->crop_left, self->crop_top,
self->crop_width, self->crop_height) < 0)
goto fimc_src_error;
if (fimc_request_src_buffers (fimc) < 0)
goto fimc_src_requestbuffers_error;
self->fimc = fimc;
self->dst[0] = NULL;
self->dst[1] = NULL;
self->dst[2] = NULL;
self->dst_stride[0] = 0;
self->dst_stride[1] = 0;
self->dst_stride[2] = 0;
self->fimc_format = fimc_format;
return TRUE;
fimc_src_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
("Failed to set FIMC source parameters"), (NULL));
fimc_free (fimc);
return FALSE;
}
fimc_src_requestbuffers_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
("Failed to request FIMC source buffers"), (NULL));
fimc_free (fimc);
return FALSE;
}
}
static gboolean
gst_mfc_dec_negotiate (GstVideoDecoder * decoder)
{
GstMFCDec *self = GST_MFC_DEC (decoder);
GstVideoCodecState *state;
GstCaps *allowed_caps;
GstVideoFormat format = GST_VIDEO_FORMAT_NV12;
allowed_caps = gst_pad_get_allowed_caps (GST_VIDEO_DECODER_SRC_PAD (self));
allowed_caps = gst_caps_truncate (allowed_caps);
allowed_caps = gst_caps_fixate (allowed_caps);
if (!gst_caps_is_empty (allowed_caps)) {
const gchar *format_str;
GstStructure *s = gst_caps_get_structure (allowed_caps, 0);
format_str = gst_structure_get_string (s, "format");
if (format_str)
format = gst_video_format_from_string (format_str);
}
gst_caps_unref (allowed_caps);
self->format = format;
state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (self),
self->format, self->crop_width, self->crop_height, self->input_state);
gst_video_codec_state_unref (state);
return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder);
}
static GstFlowReturn
gst_mfc_dec_fill_outbuf (GstMFCDec * self, GstBuffer * outbuf,
struct mfc_buffer *mfc_outbuf, GstVideoCodecState * state)
{
GstFlowReturn ret = GST_FLOW_OK;
const guint8 *mfc_outbuf_comps[3] = { NULL, };
gint i, j, h, w, src_stride, dst_stride;
guint8 *dst_, *src_;
GstVideoFrame vframe;
Fimc *fimc = self->fimc;
gboolean zerocopy, has_cropping;
memset (&vframe, 0, sizeof (vframe));
zerocopy = TRUE;
/* FIXME: Not 100% correct, we need the memory of each
* plane to be contiguous at least */
if (GST_VIDEO_INFO_N_PLANES (&state->info) > gst_buffer_n_memory (outbuf)) {
zerocopy = FALSE;
} else {
gint n = gst_buffer_n_memory (outbuf);
for (i = 0; i < n; i++) {
GstMemory *mem = gst_buffer_peek_memory (outbuf, i);
if (!GST_MEMORY_IS_PHYSICALLY_CONTIGUOUS (mem)) {
zerocopy = FALSE;
break;
}
}
}
has_cropping = self->has_cropping && (self->width != self->crop_width
|| self->height != self->crop_height);
/* We only do cropping if we do zerocopy and downstream
* supports cropping. For non-zerocopy we can do cropping
* more efficient.
* We can't do cropping ourself with zerocopy because
* FIMC returns EFAULT when queueing the destination
* buffers
*/
if (zerocopy && has_cropping) {
GstVideoCropMeta *crop;
crop = gst_buffer_add_video_crop_meta (outbuf);
crop->x = self->crop_left;
crop->y = self->crop_top;
crop->width = self->crop_width;
crop->height = self->crop_height;
}
if (!gst_video_frame_map (&vframe, &state->info, outbuf, GST_MAP_WRITE))
goto frame_map_error;
mfc_buffer_get_output_data (mfc_outbuf, (void **) &mfc_outbuf_comps[0],
(void **) &mfc_outbuf_comps[1]);
if (zerocopy && (has_cropping || (self->width == self->crop_width
&& self->height == self->crop_height))) {
void *dst[3];
if (self->mmap || !self->fimc) {
if (!gst_mfc_dec_create_fimc (self, state))
goto fimc_create_error;
fimc = self->fimc;
if (self->format == GST_VIDEO_FORMAT_NV12) {
self->dst_stride[0] = GST_ROUND_UP_4 (self->width);
self->dst_stride[1] = GST_ROUND_UP_4 (self->width);
self->dst_stride[2] = 0;
} else {
self->dst_stride[0] = GST_ROUND_UP_4 (self->width);
self->dst_stride[1] = GST_ROUND_UP_4 ((self->width + 1) / 2);
self->dst_stride[2] = GST_ROUND_UP_4 ((self->width + 1) / 2);
}
if (has_cropping) {
if (fimc_set_dst_format (fimc, self->fimc_format, self->width,
self->height, self->dst_stride, 0, 0, self->width,
self->height) < 0)
goto fimc_dst_error;
} else {
if (fimc_set_dst_format (fimc, self->fimc_format, self->width,
self->height, self->dst_stride, self->crop_left,
self->crop_top, self->crop_width, self->crop_height) < 0)
goto fimc_dst_error;
}
self->mmap = FALSE;
if (fimc_request_dst_buffers (fimc) < 0)
goto fimc_dst_requestbuffers_error;
self->dst[0] = NULL;
self->dst[1] = NULL;
self->dst[2] = NULL;
}
dst[0] = GST_VIDEO_FRAME_PLANE_DATA (&vframe, 0);
dst[1] = GST_VIDEO_FRAME_PLANE_DATA (&vframe, 1);
if (self->format == GST_VIDEO_FORMAT_NV12)
dst[2] = NULL;
else
dst[2] = GST_VIDEO_FRAME_PLANE_DATA (&vframe, 2);
if (fimc_convert (fimc, (void **) mfc_outbuf_comps, (void **) dst) < 0)
goto fimc_convert_error;
} else {
if (!self->mmap || !self->fimc) {
if (!gst_mfc_dec_create_fimc (self, state))
goto fimc_create_error;
self->dst_stride[0] = 0;
self->dst_stride[1] = 0;
self->dst_stride[2] = 0;
self->mmap = TRUE;
fimc = self->fimc;
}
if (!self->dst[0]) {
if (fimc_set_dst_format (fimc, self->fimc_format, self->width,
self->height, self->dst_stride, self->crop_left,
self->crop_top, self->crop_width, self->crop_height) < 0)
goto fimc_dst_error;
if (fimc_request_dst_buffers_mmap (fimc, self->dst, self->dst_stride) < 0)
goto fimc_dst_requestbuffers_error;
}
if (fimc_convert (fimc, (void **) mfc_outbuf_comps,
(void **) self->dst) < 0)
goto fimc_convert_error;
switch (state->info.finfo->format) {
case GST_VIDEO_FORMAT_RGBx:
dst_ = (guint8 *) GST_VIDEO_FRAME_COMP_DATA (&vframe, 0);
src_ = self->dst[0];
src_stride = self->dst_stride[0];
h = GST_VIDEO_FRAME_HEIGHT (&vframe);
w = GST_VIDEO_FRAME_WIDTH (&vframe);
dst_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, 0);
for (i = 0; i < h; i++) {
memcpy (dst_, src_, w);
dst_ += dst_stride;
src_ += src_stride;
}
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
for (j = 0; j < 3; j++) {
dst_ = (guint8 *) GST_VIDEO_FRAME_COMP_DATA (&vframe, j);
src_ = self->dst[j];
src_stride = self->dst_stride[j];
h = GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, j);
w = GST_VIDEO_FRAME_COMP_WIDTH (&vframe, j);
dst_stride = GST_VIDEO_FRAME_COMP_STRIDE (&vframe, j);
for (i = 0; i < h; i++) {
memcpy (dst_, src_, w);
dst_ += dst_stride;
src_ += src_stride;
}
}
break;
case GST_VIDEO_FORMAT_NV12:
for (j = 0; j < 2; j++) {
dst_ = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (&vframe, j);
src_ = self->dst[j];
src_stride = self->dst_stride[j];
h = GST_VIDEO_FRAME_COMP_HEIGHT (&vframe, j);
w = GST_VIDEO_FRAME_COMP_WIDTH (&vframe, j) * (j == 0 ? 1 : 2);
dst_stride = GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, j);
for (i = 0; i < h; i++) {
memcpy (dst_, src_, w);
dst_ += dst_stride;
src_ += src_stride;
}
}
break;
default:
g_assert_not_reached ();
break;
}
}
done:
if (vframe.buffer)
gst_video_frame_unmap (&vframe);
return ret;
frame_map_error:
{
GST_ELEMENT_ERROR (self, CORE, FAILED, ("Failed to map output buffer"),
(NULL));
ret = GST_FLOW_ERROR;
goto done;
}
fimc_create_error:
{
ret = GST_FLOW_ERROR;
goto done;
}
fimc_dst_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
("Failed to set FIMC destination parameters"), (NULL));
ret = GST_FLOW_ERROR;
goto done;
}
fimc_dst_requestbuffers_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
("Failed to request FIMC destination buffers"), (NULL));
ret = GST_FLOW_ERROR;
goto done;
}
fimc_convert_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
("Failed to convert via FIMC"), (NULL));
ret = GST_FLOW_ERROR;
goto done;
}
}
static GstFlowReturn
gst_mfc_dec_dequeue_output (GstMFCDec * self)
{
GstFlowReturn ret = GST_FLOW_OK;
gint mfc_ret;
GstVideoCodecFrame *frame = NULL;
GstBuffer *outbuf = NULL;
struct mfc_buffer *mfc_outbuf = NULL;
gint width, height;
gint crop_left, crop_top, crop_width, crop_height;
gint src_ystride, src_uvstride;
GstVideoCodecState *state = NULL;
gint64 deadline;
struct timeval timestamp;
if (!self->initialized) {
GST_DEBUG_OBJECT (self, "Initializing decoder");
if ((mfc_ret = mfc_dec_init_output (self->context, 1)) < 0)
goto initialize_error;
self->initialized = TRUE;
}
while ((mfc_ret = mfc_dec_output_available (self->context)) > 0) {
GST_DEBUG_OBJECT (self, "Dequeueing output");
mfc_dec_get_output_size (self->context, &width, &height);
mfc_dec_get_output_stride (self->context, &src_ystride, &src_uvstride);
mfc_dec_get_crop_size (self->context, &crop_left, &crop_top, &crop_width,
&crop_height);
GST_DEBUG_OBJECT (self, "Have output: width %d, height %d, "
"Y stride %d, UV stride %d, "
"crop_left %d, crop_right %d, "
"crop_width %d, crop_height %d", width, height, src_ystride,
src_uvstride, crop_left, crop_top, crop_width, crop_height);
state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (self));
if (!state || self->width != width || self->height != height ||
self->src_stride[0] != src_ystride
|| self->src_stride[1] != src_uvstride
|| self->crop_left != self->crop_left || self->crop_top != crop_top
|| self->crop_width != crop_width || self->crop_height != crop_height) {
self->width = width;
self->height = height;
self->crop_left = crop_left;
self->crop_top = crop_top;
self->crop_width = crop_width;
self->crop_height = crop_height;
self->src_stride[0] = src_ystride;
self->src_stride[1] = src_uvstride;
self->src_stride[2] = 0;
if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self)))
goto negotiate_error;
if (state)
gst_video_codec_state_unref (state);
state = gst_video_decoder_get_output_state (GST_VIDEO_DECODER (self));
}
if ((mfc_ret =
mfc_dec_dequeue_output (self->context, &mfc_outbuf,
&timestamp)) < 0) {
if (mfc_ret == -2) {
GST_DEBUG_OBJECT (self, "Timeout dequeueing output, trying again");
mfc_ret =
mfc_dec_dequeue_output (self->context, &mfc_outbuf, &timestamp);
}
if (mfc_ret < 0)
goto dequeue_error;
}
g_assert (mfc_outbuf != NULL);
GST_DEBUG_OBJECT (self, "Got output buffer with ID %ld", timestamp.tv_sec);
frame = NULL;
if (timestamp.tv_sec != -1)
frame =
gst_video_decoder_get_frame (GST_VIDEO_DECODER (self),
timestamp.tv_sec);
if (frame) {
deadline =
gst_video_decoder_get_max_decode_time (GST_VIDEO_DECODER (self),
frame);
if (deadline < 0) {
GST_LOG_OBJECT (self,
"Dropping too late frame: deadline %" G_GINT64_FORMAT, deadline);
ret = gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame);
frame = NULL;
outbuf = NULL;
goto done;
}
ret =
gst_video_decoder_allocate_output_frame (GST_VIDEO_DECODER (self),
frame);
if (ret != GST_FLOW_OK)
goto alloc_error;
outbuf = frame->output_buffer;
} else {
GST_WARNING_OBJECT (self, "Didn't find a frame for ID %ld",
timestamp.tv_sec);
outbuf =
gst_video_decoder_allocate_output_buffer (GST_VIDEO_DECODER (self));
if (!outbuf) {
ret = GST_FLOW_ERROR;
goto alloc_error;
}
}
ret = gst_mfc_dec_fill_outbuf (self, outbuf, mfc_outbuf, state);
if (ret != GST_FLOW_OK)
goto fill_error;
if (frame) {
ret = gst_video_decoder_finish_frame (GST_VIDEO_DECODER (self), frame);
frame = NULL;
outbuf = NULL;
} else {
ret = gst_pad_push (GST_VIDEO_DECODER_SRC_PAD (self), outbuf);
outbuf = NULL;
}
if (ret != GST_FLOW_OK)
GST_INFO_OBJECT (self, "Pushing frame returned: %s",
gst_flow_get_name (ret));
done:
if (mfc_outbuf) {
if ((mfc_ret = mfc_dec_enqueue_output (self->context, mfc_outbuf)) < 0)
goto enqueue_error;
}
if (!frame && outbuf)
gst_buffer_unref (outbuf);
if (frame)
gst_video_codec_frame_unref (frame);
if (state)
gst_video_codec_state_unref (state);
frame = NULL;
outbuf = NULL;
if (ret != GST_FLOW_OK)
break;
}
return ret;
initialize_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, INIT, ("Failed to initialize output"),
("mfc_dec_init: %d", mfc_ret));
ret = GST_FLOW_ERROR;
goto done;
}
negotiate_error:
{
GST_ELEMENT_ERROR (self, CORE, NEGOTIATION, ("Failed to negotiate"),
(NULL));
ret = GST_FLOW_NOT_NEGOTIATED;
goto done;
}
dequeue_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
("Failed to dequeue output buffer"), ("mfc_dec_dequeue_output: %d",
mfc_ret));
ret = GST_FLOW_ERROR;
goto done;
}
alloc_error:
{
GST_ELEMENT_ERROR (self, CORE, FAILED, ("Failed to allocate output buffer"),
(NULL));
ret = GST_FLOW_ERROR;
goto done;
}
fill_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED, ("Failed to fill output buffer"),
(NULL));
ret = GST_FLOW_ERROR;
goto done;
}
enqueue_error:
{
GST_ELEMENT_ERROR (self, LIBRARY, FAILED,
("Failed to enqueue output buffer"), ("mfc_dec_enqueue_output: %d",
mfc_ret));
ret = GST_FLOW_ERROR;
goto done;
}
}
static GstFlowReturn
gst_mfc_dec_finish (GstVideoDecoder * decoder)
{
GstMFCDec *self = GST_MFC_DEC (decoder);
GstFlowReturn ret;
GST_DEBUG_OBJECT (self, "Finishing decoding");
if ((ret = gst_mfc_dec_queue_input (self, NULL)) != GST_FLOW_OK)
return ret;
return gst_mfc_dec_dequeue_output (self);
}
static GstFlowReturn
gst_mfc_dec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
{
GstMFCDec *self = GST_MFC_DEC (decoder);
GstFlowReturn ret = GST_FLOW_OK;
GST_DEBUG_OBJECT (self, "Handling frame %d", frame->system_frame_number);
if ((ret = gst_mfc_dec_queue_input (self, frame)) != GST_FLOW_OK) {
gst_video_codec_frame_unref (frame);
return ret;
}
gst_video_codec_frame_unref (frame);
return gst_mfc_dec_dequeue_output (self);
}
static gboolean
gst_mfc_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
GstMFCDec *self = GST_MFC_DEC (decoder);
GstBufferPool *pool;
GstStructure *config;
guint size, min, max;
if (!GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder,
query))
return FALSE;
g_assert (gst_query_get_n_allocation_pools (query) > 0);
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
g_assert (pool != NULL);
self->has_cropping = FALSE;
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);
self->has_cropping =
gst_query_find_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE,
NULL);
}
if (self->has_cropping) {
GstVideoInfo info;
GstCaps *caps;
/* Calculate uncropped size */
gst_buffer_pool_config_get_params (config, &caps, &size, &min, &max);
gst_video_info_from_caps (&info, caps);
gst_video_info_set_format (&info, self->format, self->width, self->height);
size = MAX (size, info.size);
caps = gst_video_info_to_caps (&info);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
gst_caps_unref (caps);
}
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
gst_buffer_pool_set_config (pool, config);
gst_object_unref (pool);
return TRUE;
}
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