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vpx: created common base class GstVPXdec for vpx decoders

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Base class for the vp8dec and vp9dec.

https://bugzilla.gnome.org/show_bug.cgi?id=755510
This commit is contained in:
Prashant Gotarne 2015-12-15 09:49:24 +05:30 committed by Nicolas Dufresne
parent 10044b1d0f
commit 75fb614c1e
7 changed files with 1034 additions and 1383 deletions
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1
ext/vpx/Makefile.am
View file

@ -2,6 +2,7 @@ plugin_LTLIBRARIES = \
libgstvpx.la
libgstvpx_la_SOURCES = \
gstvpxdec.c \
gstvp8dec.c \
gstvp8enc.c \
gstvp8utils.c \

705
ext/vpx/gstvp8dec.c
View file

@ -54,63 +54,12 @@
GST_DEBUG_CATEGORY_STATIC (gst_vp8dec_debug);
#define GST_CAT_DEFAULT gst_vp8dec_debug
#define DEFAULT_POST_PROCESSING FALSE
#define DEFAULT_POST_PROCESSING_FLAGS (VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE)
#define DEFAULT_DEBLOCKING_LEVEL 4
#define DEFAULT_NOISE_LEVEL 0
#define DEFAULT_THREADS 0
#define VP8_DECODER_VIDEO_TAG "VP8 video"
enum
{
PROP_0,
PROP_POST_PROCESSING,
PROP_POST_PROCESSING_FLAGS,
PROP_DEBLOCKING_LEVEL,
PROP_NOISE_LEVEL,
PROP_THREADS
};
#define C_FLAGS(v) ((guint) v)
#define GST_VP8_DEC_TYPE_POST_PROCESSING_FLAGS (gst_vp8_dec_post_processing_flags_get_type())
static GType
gst_vp8_dec_post_processing_flags_get_type (void)
{
static const GFlagsValue values[] = {
{C_FLAGS (VP8_DEBLOCK), "Deblock", "deblock"},
{C_FLAGS (VP8_DEMACROBLOCK), "Demacroblock", "demacroblock"},
{C_FLAGS (VP8_ADDNOISE), "Add noise", "addnoise"},
{C_FLAGS (VP8_MFQE), "Multi-frame quality enhancement", "mfqe"},
{0, NULL, NULL}
};
static volatile GType id = 0;
if (g_once_init_enter ((gsize *) & id)) {
GType _id;
_id = g_flags_register_static ("GstVP8DecPostProcessingFlags", values);
g_once_init_leave ((gsize *) & id, _id);
}
return id;
}
#undef C_FLAGS
static void gst_vp8_dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_vp8_dec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_vp8_dec_start (GstVideoDecoder * decoder);
static gboolean gst_vp8_dec_stop (GstVideoDecoder * decoder);
static gboolean gst_vp8_dec_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state);
static gboolean gst_vp8_dec_flush (GstVideoDecoder * decoder);
static GstFlowReturn gst_vp8_dec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame);
static gboolean gst_vp8_dec_decide_allocation (GstVideoDecoder * decoder,
GstQuery * query);
static void gst_vp8_dec_set_default_format (GstVPXDec * dec, GstVideoFormat fmt,
int width, int height);
static void gst_vp8_dec_handle_resolution_change (GstVPXDec * dec,
vpx_image_t * img, GstVideoFormat fmt);
static GstStaticPadTemplate gst_vp8_dec_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
@ -127,54 +76,22 @@ GST_STATIC_PAD_TEMPLATE ("src",
);
#define parent_class gst_vp8_dec_parent_class
G_DEFINE_TYPE (GstVP8Dec, gst_vp8_dec, GST_TYPE_VIDEO_DECODER);
G_DEFINE_TYPE (GstVP8Dec, gst_vp8_dec, GST_TYPE_VPX_DEC);
static void
gst_vp8_dec_class_init (GstVP8DecClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstVideoDecoderClass *base_video_decoder_class;
GstVPXDecClass *vpx_class;
gobject_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
base_video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
vpx_class = GST_VPX_DEC_CLASS (klass);
gobject_class->set_property = gst_vp8_dec_set_property;
gobject_class->get_property = gst_vp8_dec_get_property;
g_object_class_install_property (gobject_class, PROP_POST_PROCESSING,
g_param_spec_boolean ("post-processing", "Post Processing",
"Enable post processing", DEFAULT_POST_PROCESSING,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_POST_PROCESSING_FLAGS,
g_param_spec_flags ("post-processing-flags", "Post Processing Flags",
"Flags to control post processing",
GST_VP8_DEC_TYPE_POST_PROCESSING_FLAGS, DEFAULT_POST_PROCESSING_FLAGS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_DEBLOCKING_LEVEL,
g_param_spec_uint ("deblocking-level", "Deblocking Level",
"Deblocking level",
0, 16, DEFAULT_DEBLOCKING_LEVEL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_NOISE_LEVEL,
g_param_spec_uint ("noise-level", "Noise Level",
"Noise level",
0, 16, DEFAULT_NOISE_LEVEL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_THREADS,
g_param_spec_uint ("threads", "Max Threads",
"Maximum number of decoding threads (0 = automatic)",
0, 16, DEFAULT_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_vp8_dec_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_vp8_dec_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_vp8_dec_sink_template));
gst_element_class_set_static_metadata (element_class,
"On2 VP8 Decoder",
@ -182,14 +99,12 @@ gst_vp8_dec_class_init (GstVP8DecClass * klass)
"Decode VP8 video streams", "David Schleef <ds@entropywave.com>, "
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
base_video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_vp8_dec_start);
base_video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_vp8_dec_stop);
base_video_decoder_class->flush = GST_DEBUG_FUNCPTR (gst_vp8_dec_flush);
base_video_decoder_class->set_format =
GST_DEBUG_FUNCPTR (gst_vp8_dec_set_format);
base_video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_vp8_dec_handle_frame);
base_video_decoder_class->decide_allocation = gst_vp8_dec_decide_allocation;
vpx_class->video_codec_tag = VP8_DECODER_VIDEO_TAG;
vpx_class->codec_algo = &vpx_codec_vp8_dx_algo;
vpx_class->set_default_format =
GST_DEBUG_FUNCPTR (gst_vp8_dec_set_default_format);
vpx_class->handle_resolution_change =
GST_DEBUG_FUNCPTR (gst_vp8_dec_handle_resolution_change);
GST_DEBUG_CATEGORY_INIT (gst_vp8dec_debug, "vp8dec", 0, "VP8 Decoder");
}
@ -197,589 +112,47 @@ gst_vp8_dec_class_init (GstVP8DecClass * klass)
static void
gst_vp8_dec_init (GstVP8Dec * gst_vp8_dec)
{
GstVideoDecoder *decoder = (GstVideoDecoder *) gst_vp8_dec;
GST_DEBUG_OBJECT (gst_vp8_dec, "gst_vp8_dec_init");
gst_video_decoder_set_packetized (decoder, TRUE);
gst_vp8_dec->post_processing = DEFAULT_POST_PROCESSING;
gst_vp8_dec->post_processing_flags = DEFAULT_POST_PROCESSING_FLAGS;
gst_vp8_dec->deblocking_level = DEFAULT_DEBLOCKING_LEVEL;
gst_vp8_dec->noise_level = DEFAULT_NOISE_LEVEL;
gst_video_decoder_set_needs_format (decoder, TRUE);
gst_video_decoder_set_use_default_pad_acceptcaps (decoder, TRUE);
GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_DECODER_SINK_PAD (decoder));
}
static void
gst_vp8_dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
gst_vp8_dec_set_default_format (GstVPXDec * dec, GstVideoFormat fmt, int width,
int height)
{
GstVP8Dec *dec;
g_return_if_fail (GST_IS_VP8_DEC (object));
dec = GST_VP8_DEC (object);
GST_DEBUG_OBJECT (object, "gst_vp8_dec_set_property");
switch (prop_id) {
case PROP_POST_PROCESSING:
dec->post_processing = g_value_get_boolean (value);
break;
case PROP_POST_PROCESSING_FLAGS:
dec->post_processing_flags = g_value_get_flags (value);
break;
case PROP_DEBLOCKING_LEVEL:
dec->deblocking_level = g_value_get_uint (value);
break;
case PROP_NOISE_LEVEL:
dec->noise_level = g_value_get_uint (value);
break;
case PROP_THREADS:
dec->threads = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vp8_dec_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstVP8Dec *dec;
g_return_if_fail (GST_IS_VP8_DEC (object));
dec = GST_VP8_DEC (object);
switch (prop_id) {
case PROP_POST_PROCESSING:
g_value_set_boolean (value, dec->post_processing);
break;
case PROP_POST_PROCESSING_FLAGS:
g_value_set_flags (value, dec->post_processing_flags);
break;
case PROP_DEBLOCKING_LEVEL:
g_value_set_uint (value, dec->deblocking_level);
break;
case PROP_NOISE_LEVEL:
g_value_set_uint (value, dec->noise_level);
break;
case PROP_THREADS:
g_value_set_uint (value, dec->threads);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_vp8_dec_start (GstVideoDecoder * decoder)
{
GstVP8Dec *gst_vp8_dec = GST_VP8_DEC (decoder);
GST_DEBUG_OBJECT (gst_vp8_dec, "start");
gst_vp8_dec->decoder_inited = FALSE;
return TRUE;
}
static gboolean
gst_vp8_dec_stop (GstVideoDecoder * base_video_decoder)
{
GstVP8Dec *gst_vp8_dec = GST_VP8_DEC (base_video_decoder);
GST_DEBUG_OBJECT (gst_vp8_dec, "stop");
if (gst_vp8_dec->output_state) {
gst_video_codec_state_unref (gst_vp8_dec->output_state);
gst_vp8_dec->output_state = NULL;
}
if (gst_vp8_dec->input_state) {
gst_video_codec_state_unref (gst_vp8_dec->input_state);
gst_vp8_dec->input_state = NULL;
}
if (gst_vp8_dec->decoder_inited)
vpx_codec_destroy (&gst_vp8_dec->decoder);
gst_vp8_dec->decoder_inited = FALSE;
if (gst_vp8_dec->pool) {
gst_buffer_pool_set_active (gst_vp8_dec->pool, FALSE);
gst_object_unref (gst_vp8_dec->pool);
gst_vp8_dec->pool = NULL;
gst_vp8_dec->buf_size = 0;
}
return TRUE;
}
static gboolean
gst_vp8_dec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
{
GstVP8Dec *gst_vp8_dec = GST_VP8_DEC (decoder);
GST_DEBUG_OBJECT (gst_vp8_dec, "set_format");
if (gst_vp8_dec->decoder_inited)
vpx_codec_destroy (&gst_vp8_dec->decoder);
gst_vp8_dec->decoder_inited = FALSE;
if (gst_vp8_dec->output_state) {
gst_video_codec_state_unref (gst_vp8_dec->output_state);
gst_vp8_dec->output_state = NULL;
}
if (gst_vp8_dec->input_state) {
gst_video_codec_state_unref (gst_vp8_dec->input_state);
gst_vp8_dec->input_state = NULL;
}
gst_vp8_dec->input_state = gst_video_codec_state_ref (state);
return TRUE;
}
static gboolean
gst_vp8_dec_flush (GstVideoDecoder * base_video_decoder)
{
GstVP8Dec *decoder;
GST_DEBUG_OBJECT (base_video_decoder, "flush");
decoder = GST_VP8_DEC (base_video_decoder);
if (decoder->output_state) {
gst_video_codec_state_unref (decoder->output_state);
decoder->output_state = NULL;
}
if (decoder->decoder_inited)
vpx_codec_destroy (&decoder->decoder);
decoder->decoder_inited = FALSE;
return TRUE;
}
static void
gst_vp8_dec_send_tags (GstVP8Dec * dec)
{
GstTagList *list;
list = gst_tag_list_new_empty ();
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
GST_TAG_VIDEO_CODEC, "VP8 video", NULL);
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (dec),
gst_event_new_tag (list));
}
#ifdef HAVE_VPX_1_4
struct Frame
{
GstMapInfo info;
GstBuffer *buffer;
};
static GstBuffer *
gst_vp8_dec_prepare_image (GstVP8Dec * dec, const vpx_image_t * img)
{
gint comp;
GstVideoMeta *vmeta;
GstBuffer *buffer;
struct Frame *frame = img->fb_priv;
GstVideoInfo *info = &dec->output_state->info;
buffer = gst_buffer_ref (frame->buffer);
vmeta = gst_buffer_get_video_meta (buffer);
vmeta->format = GST_VIDEO_INFO_FORMAT (info);
vmeta->width = GST_VIDEO_INFO_WIDTH (info);
vmeta->height = GST_VIDEO_INFO_HEIGHT (info);
vmeta->n_planes = GST_VIDEO_INFO_N_PLANES (info);
for (comp = 0; comp < 4; comp++) {
vmeta->stride[comp] = img->stride[comp];
vmeta->offset[comp] =
img->planes[comp] ? img->planes[comp] - frame->info.data : 0;
}
/* FIXME This is a READ/WRITE mapped buffer see bug #754826 */
return buffer;
}
static int
gst_vp8_dec_get_buffer_cb (gpointer priv, gsize min_size,
vpx_codec_frame_buffer_t * fb)
{
GstVP8Dec *dec = priv;
GstBuffer *buffer;
struct Frame *frame;
GstFlowReturn ret;
if (!dec->pool || dec->buf_size != min_size) {
GstBufferPool *pool;
GstStructure *config;
GstCaps *caps;
GstAllocator *allocator;
GstAllocationParams params;
if (dec->pool) {
gst_buffer_pool_set_active (dec->pool, FALSE);
gst_object_unref (dec->pool);
dec->pool = NULL;
dec->buf_size = 0;
}
gst_video_decoder_get_allocator (GST_VIDEO_DECODER (dec), &allocator,
&params);
if (allocator &&
GST_OBJECT_FLAG_IS_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC)) {
gst_object_unref (allocator);
allocator = NULL;
}
pool = gst_buffer_pool_new ();
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_allocator (config, allocator, &params);
caps = gst_caps_from_string ("video/internal");
gst_buffer_pool_config_set_params (config, caps, min_size, 2, 0);
gst_caps_unref (caps);
gst_buffer_pool_set_config (pool, config);
if (allocator)
gst_object_unref (allocator);
if (!gst_buffer_pool_set_active (pool, TRUE)) {
GST_WARNING ("Failed to create internal pool");
gst_object_unref (pool);
return -1;
}
dec->pool = pool;
dec->buf_size = min_size;
}
ret = gst_buffer_pool_acquire_buffer (dec->pool, &buffer, NULL);
if (ret != GST_FLOW_OK) {
GST_WARNING ("Failed to acquire buffer from internal pool.");
return -1;
}
frame = g_new0 (struct Frame, 1);
if (!gst_buffer_map (buffer, &frame->info, GST_MAP_READWRITE)) {
gst_buffer_unref (buffer);
g_free (frame);
GST_WARNING ("Failed to map buffer from internal pool.");
return -1;
}
fb->size = frame->info.size;
fb->data = frame->info.data;
frame->buffer = buffer;
fb->priv = frame;
GST_TRACE_OBJECT (priv, "Allocated buffer %p", frame->buffer);
return 0;
}
static int
gst_vp8_dec_release_buffer_cb (gpointer priv, vpx_codec_frame_buffer_t * fb)
{
struct Frame *frame = fb->priv;
GST_TRACE_OBJECT (priv, "Release buffer %p", frame->buffer);
g_assert (frame);
gst_buffer_unmap (frame->buffer, &frame->info);
gst_buffer_unref (frame->buffer);
g_free (frame);
return 0;
}
#endif
static void
gst_vp8_dec_image_to_buffer (GstVP8Dec * dec, const vpx_image_t * img,
GstBuffer * buffer)
{
int deststride, srcstride, height, width, line, comp;
guint8 *dest, *src;
GstVideoFrame frame;
GstVideoInfo *info = &dec->output_state->info;
if (!gst_video_frame_map (&frame, info, buffer, GST_MAP_WRITE)) {
GST_ERROR_OBJECT (dec, "Could not map video buffer");
return;
}
for (comp = 0; comp < 3; comp++) {
dest = GST_VIDEO_FRAME_COMP_DATA (&frame, comp);
src = img->planes[comp];
width = GST_VIDEO_FRAME_COMP_WIDTH (&frame, comp)
* GST_VIDEO_FRAME_COMP_PSTRIDE (&frame, comp);
height = GST_VIDEO_FRAME_COMP_HEIGHT (&frame, comp);
deststride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, comp);
srcstride = img->stride[comp];
if (srcstride == deststride) {
GST_TRACE_OBJECT (dec, "Stride matches. Comp %d: %d, copying full plane",
comp, srcstride);
memcpy (dest, src, srcstride * height);
} else {
GST_TRACE_OBJECT (dec, "Stride mismatch. Comp %d: %d != %d, copying "
"line by line.", comp, srcstride, deststride);
for (line = 0; line < height; line++) {
memcpy (dest, src, width);
dest += deststride;
src += srcstride;
}
}
}
gst_video_frame_unmap (&frame);
}
static GstFlowReturn
open_codec (GstVP8Dec * dec, GstVideoCodecFrame * frame)
{
int flags = 0;
vpx_codec_stream_info_t stream_info;
vpx_codec_caps_t caps;
vpx_codec_dec_cfg_t cfg;
GstVideoCodecState *state = dec->input_state;
vpx_codec_err_t status;
GstMapInfo minfo;
memset (&stream_info, 0, sizeof (stream_info));
memset (&cfg, 0, sizeof (cfg));
stream_info.sz = sizeof (stream_info);
if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
GST_ERROR_OBJECT (dec, "Failed to map input buffer");
return GST_FLOW_ERROR;
}
status = vpx_codec_peek_stream_info (&vpx_codec_vp8_dx_algo,
minfo.data, minfo.size, &stream_info);
gst_buffer_unmap (frame->input_buffer, &minfo);
if (status != VPX_CODEC_OK) {
GST_WARNING_OBJECT (dec, "VPX preprocessing error: %s",
gst_vpx_error_name (status));
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (dec), frame);
return GST_FLOW_CUSTOM_SUCCESS_1;
}
if (!stream_info.is_kf) {
GST_WARNING_OBJECT (dec, "No keyframe, skipping");
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (dec), frame);
return GST_FLOW_CUSTOM_SUCCESS_1;
}
GstVPXDecClass *vpxclass = GST_VPX_DEC_GET_CLASS (dec);
g_assert (dec->output_state == NULL);
dec->output_state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (dec),
GST_VIDEO_FORMAT_I420, stream_info.w, stream_info.h, state);
GST_VIDEO_FORMAT_I420, width, height, dec->input_state);
gst_video_decoder_negotiate (GST_VIDEO_DECODER (dec));
gst_vp8_dec_send_tags (dec);
cfg.w = stream_info.w;
cfg.h = stream_info.h;
if (dec->threads > 0)
cfg.threads = dec->threads;
else
cfg.threads = g_get_num_processors ();
caps = vpx_codec_get_caps (&vpx_codec_vp8_dx_algo);
if (dec->post_processing) {
if (!(caps & VPX_CODEC_CAP_POSTPROC)) {
GST_WARNING_OBJECT (dec, "Decoder does not support post processing");
} else {
flags |= VPX_CODEC_USE_POSTPROC;
}
}
status =
vpx_codec_dec_init (&dec->decoder, &vpx_codec_vp8_dx_algo, &cfg, flags);
if (status != VPX_CODEC_OK) {
GST_ELEMENT_ERROR (dec, LIBRARY, INIT,
("Failed to initialize VP8 decoder"), ("%s",
gst_vpx_error_name (status)));
return GST_FLOW_ERROR;
}
if ((caps & VPX_CODEC_CAP_POSTPROC) && dec->post_processing) {
vp8_postproc_cfg_t pp_cfg = { 0, };
pp_cfg.post_proc_flag = dec->post_processing_flags;
pp_cfg.deblocking_level = dec->deblocking_level;
pp_cfg.noise_level = dec->noise_level;
status = vpx_codec_control (&dec->decoder, VP8_SET_POSTPROC, &pp_cfg);
if (status != VPX_CODEC_OK) {
GST_WARNING_OBJECT (dec, "Couldn't set postprocessing settings: %s",
gst_vpx_error_name (status));
}
}
#ifdef HAVE_VPX_1_4
vpx_codec_set_frame_buffer_functions (&dec->decoder,
gst_vp8_dec_get_buffer_cb, gst_vp8_dec_release_buffer_cb, dec);
#endif
dec->decoder_inited = TRUE;
return GST_FLOW_OK;
vpxclass->send_tags (dec);
}
static GstFlowReturn
gst_vp8_dec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
static void
gst_vp8_dec_handle_resolution_change (GstVPXDec * dec, vpx_image_t * img,
GstVideoFormat fmt)
{
GstVP8Dec *dec;
GstFlowReturn ret = GST_FLOW_OK;
vpx_codec_err_t status;
vpx_codec_iter_t iter = NULL;
vpx_image_t *img;
long decoder_deadline = 0;
GstClockTimeDiff deadline;
GstMapInfo minfo;
GstVideoInfo *info;
GstVideoCodecState *new_output_state;
GST_LOG_OBJECT (decoder, "handle_frame");
info = &dec->output_state->info;
if (GST_VIDEO_INFO_WIDTH (info) != img->d_w
|| GST_VIDEO_INFO_HEIGHT (info) != img->d_h) {
GST_DEBUG_OBJECT (dec,
"Changed output resolution was %d x %d now is got %u x %u (display %u x %u)",
GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info), img->w,
img->h, img->d_w, img->d_h);
dec = GST_VP8_DEC (decoder);
if (!dec->decoder_inited) {
ret = open_codec (dec, frame);
if (ret == GST_FLOW_CUSTOM_SUCCESS_1)
return GST_FLOW_OK;
else if (ret != GST_FLOW_OK)
return ret;
}
deadline = gst_video_decoder_get_max_decode_time (decoder, frame);
if (deadline < 0) {
decoder_deadline = 1;
} else if (deadline == G_MAXINT64) {
decoder_deadline = 0;
} else {
decoder_deadline = MAX (1, deadline / GST_MSECOND);
}
if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
GST_ERROR_OBJECT (dec, "Failed to map input buffer");
return GST_FLOW_ERROR;
}
status = vpx_codec_decode (&dec->decoder,
minfo.data, minfo.size, NULL, decoder_deadline);
gst_buffer_unmap (frame->input_buffer, &minfo);
if (status) {
GST_VIDEO_DECODER_ERROR (decoder, 1, LIBRARY, ENCODE,
("Failed to decode frame"), ("%s", gst_vpx_error_name (status)), ret);
return ret;
}
img = vpx_codec_get_frame (&dec->decoder, &iter);
if (img) {
if (img->fmt != VPX_IMG_FMT_I420) {
vpx_img_free (img);
GST_ELEMENT_ERROR (decoder, LIBRARY, ENCODE,
("Failed to decode frame"), ("Unsupported color format %d",
img->fmt));
return GST_FLOW_ERROR;
new_output_state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (dec),
GST_VIDEO_FORMAT_I420, img->d_w, img->d_h, dec->output_state);
if (dec->output_state) {
gst_video_codec_state_unref (dec->output_state);
}
if (deadline < 0) {
GST_LOG_OBJECT (dec, "Skipping late frame (%f s past deadline)",
(double) -deadline / GST_SECOND);
gst_video_decoder_drop_frame (decoder, frame);
} else {
info = &dec->output_state->info;
if (GST_VIDEO_INFO_WIDTH (info) != img->d_w
|| GST_VIDEO_INFO_HEIGHT (info) != img->d_h) {
GST_DEBUG_OBJECT (dec,
"Changed output resolution was %d x %d now is got %u x %u (display %u x %u)",
GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info), img->w,
img->h, img->d_w, img->d_h);
new_output_state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (dec),
GST_VIDEO_FORMAT_I420, img->d_w, img->d_h, dec->output_state);
if (dec->output_state) {
gst_video_codec_state_unref (dec->output_state);
}
dec->output_state = new_output_state;
/* No need to call negotiate() here, it will be automatically called
* by allocate_output_frame() below */
}
#ifdef HAVE_VPX_1_4
if (img->fb_priv && dec->have_video_meta) {
frame->output_buffer = gst_vp8_dec_prepare_image (dec, img);
ret = gst_video_decoder_finish_frame (decoder, frame);
} else
#endif
{
ret = gst_video_decoder_allocate_output_frame (decoder, frame);
if (ret == GST_FLOW_OK) {
gst_vp8_dec_image_to_buffer (dec, img, frame->output_buffer);
ret = gst_video_decoder_finish_frame (decoder, frame);
} else {
gst_video_decoder_drop_frame (decoder, frame);
}
}
}
vpx_img_free (img);
while ((img = vpx_codec_get_frame (&dec->decoder, &iter))) {
GST_WARNING_OBJECT (decoder, "Multiple decoded frames... dropping");
vpx_img_free (img);
}
} else {
/* Invisible frame */
GST_VIDEO_CODEC_FRAME_SET_DECODE_ONLY (frame);
gst_video_decoder_finish_frame (decoder, frame);
dec->output_state = new_output_state;
/* No need to call negotiate() here, it will be automatically called
* by allocate_output_frame()*/
}
return ret;
}
static gboolean
gst_vp8_dec_decide_allocation (GstVideoDecoder * bdec, GstQuery * query)
{
GstVP8Dec *dec = GST_VP8_DEC (bdec);
GstBufferPool *pool;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (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);
dec->have_video_meta = TRUE;
}
gst_buffer_pool_set_config (pool, config);
gst_object_unref (pool);
return TRUE;
}
#endif /* HAVE_VP8_DECODER */

26
ext/vpx/gstvp8dec.h
View file

@ -31,6 +31,7 @@
#include <gst/gst.h>
#include <gst/video/gstvideodecoder.h>
#include <gstvpxdec.h>
/* FIXME: Undef HAVE_CONFIG_H because vpx_codec.h uses it,
* which causes compilation failures */
@ -59,33 +60,12 @@ typedef struct _GstVP8DecClass GstVP8DecClass;
struct _GstVP8Dec
{
GstVideoDecoder base_video_decoder;
/* < private > */
vpx_codec_ctx_t decoder;
/* state */
gboolean decoder_inited;
/* properties */
gboolean post_processing;
enum vp8_postproc_level post_processing_flags;
gint deblocking_level;
gint noise_level;
gint threads;
GstVideoCodecState *input_state;
GstVideoCodecState *output_state;
/* allocation */
gboolean have_video_meta;
GstBufferPool *pool;
gsize buf_size;
GstVPXDec base_vpx_decoder;
};
struct _GstVP8DecClass
{
GstVideoDecoderClass base_video_decoder_class;
GstVPXDecClass base_vpx_class;
};
GType gst_vp8_dec_get_type (void);

736
ext/vpx/gstvp9dec.c
View file

@ -54,63 +54,15 @@
GST_DEBUG_CATEGORY_STATIC (gst_vp9dec_debug);
#define GST_CAT_DEFAULT gst_vp9dec_debug
#define DEFAULT_POST_PROCESSING FALSE
#define DEFAULT_POST_PROCESSING_FLAGS (VP8_DEBLOCK | VP8_DEMACROBLOCK)
#define DEFAULT_DEBLOCKING_LEVEL 4
#define DEFAULT_NOISE_LEVEL 0
#define DEFAULT_THREADS 0
#define VP9_DECODER_VIDEO_TAG "VP9 video"
enum
{
PROP_0,
PROP_POST_PROCESSING,
PROP_POST_PROCESSING_FLAGS,
PROP_DEBLOCKING_LEVEL,
PROP_NOISE_LEVEL,
PROP_THREADS
};
#define C_FLAGS(v) ((guint) v)
#define GST_VP9_DEC_TYPE_POST_PROCESSING_FLAGS (gst_vp9_dec_post_processing_flags_get_type())
static GType
gst_vp9_dec_post_processing_flags_get_type (void)
{
static const GFlagsValue values[] = {
{C_FLAGS (VP8_DEBLOCK), "Deblock", "deblock"},
{C_FLAGS (VP8_DEMACROBLOCK), "Demacroblock", "demacroblock"},
{C_FLAGS (VP8_ADDNOISE), "Add noise", "addnoise"},
{C_FLAGS (VP8_MFQE), "Multi-frame quality enhancement", "mfqe"},
{0, NULL, NULL}
};
static volatile GType id = 0;
if (g_once_init_enter ((gsize *) & id)) {
GType _id;
_id = g_flags_register_static ("GstVP9DecPostProcessingFlags", values);
g_once_init_leave ((gsize *) & id, _id);
}
return id;
}
#undef C_FLAGS
static void gst_vp9_dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_vp9_dec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_vp9_dec_start (GstVideoDecoder * decoder);
static gboolean gst_vp9_dec_stop (GstVideoDecoder * decoder);
static gboolean gst_vp9_dec_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state);
static gboolean gst_vp9_dec_flush (GstVideoDecoder * decoder);
static GstFlowReturn gst_vp9_dec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame);
static gboolean gst_vp9_dec_decide_allocation (GstVideoDecoder * decoder,
GstQuery * query);
static void gst_vp9_dec_set_stream_info (GstVPXDec * dec,
vpx_codec_stream_info_t * stream_info);
static gboolean gst_vp9_dec_get_valid_format (GstVPXDec * dec,
vpx_image_t * img, GstVideoFormat * fmt);
static void gst_vp9_dec_handle_resolution_change (GstVPXDec * dec,
vpx_image_t * img, GstVideoFormat fmt);
static void gst_vp9_dec_add_video_meta (GstVPXDec * dec, GstBuffer * buffer);
static GstStaticPadTemplate gst_vp9_dec_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
@ -127,49 +79,16 @@ GST_STATIC_PAD_TEMPLATE ("src",
);
#define parent_class gst_vp9_dec_parent_class
G_DEFINE_TYPE (GstVP9Dec, gst_vp9_dec, GST_TYPE_VIDEO_DECODER);
G_DEFINE_TYPE (GstVP9Dec, gst_vp9_dec, GST_TYPE_VPX_DEC);
static void
gst_vp9_dec_class_init (GstVP9DecClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstVideoDecoderClass *base_video_decoder_class;
GstVPXDecClass *vpx_class;
gobject_class = G_OBJECT_CLASS (klass);
element_class = GST_ELEMENT_CLASS (klass);
base_video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
gobject_class->set_property = gst_vp9_dec_set_property;
gobject_class->get_property = gst_vp9_dec_get_property;
g_object_class_install_property (gobject_class, PROP_POST_PROCESSING,
g_param_spec_boolean ("post-processing", "Post Processing",
"Enable post processing", DEFAULT_POST_PROCESSING,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_POST_PROCESSING_FLAGS,
g_param_spec_flags ("post-processing-flags", "Post Processing Flags",
"Flags to control post processing",
GST_VP9_DEC_TYPE_POST_PROCESSING_FLAGS, DEFAULT_POST_PROCESSING_FLAGS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_DEBLOCKING_LEVEL,
g_param_spec_uint ("deblocking-level", "Deblocking Level",
"Deblocking level",
0, 16, DEFAULT_DEBLOCKING_LEVEL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_NOISE_LEVEL,
g_param_spec_uint ("noise-level", "Noise Level",
"Noise level",
0, 16, DEFAULT_NOISE_LEVEL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_THREADS,
g_param_spec_uint ("threads", "Max Threads",
"Maximum number of decoding threads (0 = automatic)",
0, 16, DEFAULT_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
vpx_class = GST_VPX_DEC_CLASS (klass);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_vp9_dec_src_template));
@ -182,14 +101,14 @@ gst_vp9_dec_class_init (GstVP9DecClass * klass)
"Decode VP9 video streams", "David Schleef <ds@entropywave.com>, "
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
base_video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_vp9_dec_start);
base_video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_vp9_dec_stop);
base_video_decoder_class->flush = GST_DEBUG_FUNCPTR (gst_vp9_dec_flush);
base_video_decoder_class->set_format =
GST_DEBUG_FUNCPTR (gst_vp9_dec_set_format);
base_video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_vp9_dec_handle_frame);
base_video_decoder_class->decide_allocation = gst_vp9_dec_decide_allocation;
vpx_class->video_codec_tag = VP9_DECODER_VIDEO_TAG;
vpx_class->codec_algo = &vpx_codec_vp9_dx_algo;
vpx_class->set_stream_info = GST_DEBUG_FUNCPTR (gst_vp9_dec_set_stream_info);
vpx_class->get_frame_format =
GST_DEBUG_FUNCPTR (gst_vp9_dec_get_valid_format);
vpx_class->handle_resolution_change =
GST_DEBUG_FUNCPTR (gst_vp9_dec_handle_resolution_change);
vpx_class->add_video_meta = GST_DEBUG_FUNCPTR (gst_vp9_dec_add_video_meta);
GST_DEBUG_CATEGORY_INIT (gst_vp9dec_debug, "vp9dec", 0, "VP9 Decoder");
}
@ -197,599 +116,74 @@ gst_vp9_dec_class_init (GstVP9DecClass * klass)
static void
gst_vp9_dec_init (GstVP9Dec * gst_vp9_dec)
{
GstVideoDecoder *decoder = (GstVideoDecoder *) gst_vp9_dec;
GST_DEBUG_OBJECT (gst_vp9_dec, "gst_vp9_dec_init");
gst_video_decoder_set_packetized (decoder, TRUE);
gst_vp9_dec->post_processing = DEFAULT_POST_PROCESSING;
gst_vp9_dec->post_processing_flags = DEFAULT_POST_PROCESSING_FLAGS;
gst_vp9_dec->deblocking_level = DEFAULT_DEBLOCKING_LEVEL;
gst_vp9_dec->noise_level = DEFAULT_NOISE_LEVEL;
gst_video_decoder_set_needs_format (decoder, TRUE);
gst_video_decoder_set_use_default_pad_acceptcaps (decoder, TRUE);
GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_DECODER_SINK_PAD (decoder));
}
static void
gst_vp9_dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
gst_vp9_dec_set_stream_info (GstVPXDec * dec,
vpx_codec_stream_info_t * stream_info)
{
GstVP9Dec *dec;
/* FIXME: peek_stream_info() does not return valid values, take input caps */
stream_info->w = dec->input_state->info.width;
stream_info->h = dec->input_state->info.height;
return;
}
g_return_if_fail (GST_IS_VP9_DEC (object));
dec = GST_VP9_DEC (object);
static gboolean
gst_vp9_dec_get_valid_format (GstVPXDec * dec, vpx_image_t * img,
GstVideoFormat * fmt)
{
switch (img->fmt) {
case VPX_IMG_FMT_I420:
*fmt = GST_VIDEO_FORMAT_I420;
return TRUE;
case VPX_IMG_FMT_YV12:
*fmt = GST_VIDEO_FORMAT_YV12;
return TRUE;
case VPX_IMG_FMT_I422:
*fmt = GST_VIDEO_FORMAT_Y42B;
return TRUE;
case VPX_IMG_FMT_I444:
*fmt = GST_VIDEO_FORMAT_Y444;
return TRUE;
GST_DEBUG_OBJECT (object, "gst_vp9_dec_set_property");
switch (prop_id) {
case PROP_POST_PROCESSING:
dec->post_processing = g_value_get_boolean (value);
break;
case PROP_POST_PROCESSING_FLAGS:
dec->post_processing_flags = g_value_get_flags (value);
break;
case PROP_DEBLOCKING_LEVEL:
dec->deblocking_level = g_value_get_uint (value);
break;
case PROP_NOISE_LEVEL:
dec->noise_level = g_value_get_uint (value);
break;
case PROP_THREADS:
dec->threads = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
return FALSE;
}
}
static void
gst_vp9_dec_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
gst_vp9_dec_handle_resolution_change (GstVPXDec * dec, vpx_image_t * img,
GstVideoFormat fmt)
{
GstVP9Dec *dec;
GstVPXDecClass *vpxclass = GST_VPX_DEC_GET_CLASS (dec);
g_return_if_fail (GST_IS_VP9_DEC (object));
dec = GST_VP9_DEC (object);
if (!dec->output_state || dec->output_state->info.finfo->format != fmt ||
dec->output_state->info.width != img->d_w ||
dec->output_state->info.height != img->d_h) {
gboolean send_tags = !dec->output_state;
switch (prop_id) {
case PROP_POST_PROCESSING:
g_value_set_boolean (value, dec->post_processing);
break;
case PROP_POST_PROCESSING_FLAGS:
g_value_set_flags (value, dec->post_processing_flags);
break;
case PROP_DEBLOCKING_LEVEL:
g_value_set_uint (value, dec->deblocking_level);
break;
case PROP_NOISE_LEVEL:
g_value_set_uint (value, dec->noise_level);
break;
case PROP_THREADS:
g_value_set_uint (value, dec->threads);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
if (dec->output_state)
gst_video_codec_state_unref (dec->output_state);
dec->output_state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (dec),
fmt, img->d_w, img->d_h, dec->input_state);
gst_video_decoder_negotiate (GST_VIDEO_DECODER (dec));
if (send_tags)
vpxclass->send_tags (dec);
}
}
static gboolean
gst_vp9_dec_start (GstVideoDecoder * decoder)
{
GstVP9Dec *gst_vp9_dec = GST_VP9_DEC (decoder);
GST_DEBUG_OBJECT (gst_vp9_dec, "start");
gst_vp9_dec->decoder_inited = FALSE;
return TRUE;
}
static gboolean
gst_vp9_dec_stop (GstVideoDecoder * base_video_decoder)
{
GstVP9Dec *gst_vp9_dec = GST_VP9_DEC (base_video_decoder);
GST_DEBUG_OBJECT (gst_vp9_dec, "stop");
if (gst_vp9_dec->output_state) {
gst_video_codec_state_unref (gst_vp9_dec->output_state);
gst_vp9_dec->output_state = NULL;
}
if (gst_vp9_dec->input_state) {
gst_video_codec_state_unref (gst_vp9_dec->input_state);
gst_vp9_dec->input_state = NULL;
}
if (gst_vp9_dec->decoder_inited)
vpx_codec_destroy (&gst_vp9_dec->decoder);
gst_vp9_dec->decoder_inited = FALSE;
if (gst_vp9_dec->pool) {
gst_buffer_pool_set_active (gst_vp9_dec->pool, FALSE);
gst_object_unref (gst_vp9_dec->pool);
gst_vp9_dec->pool = NULL;
gst_vp9_dec->buf_size = 0;
}
return TRUE;
}
static gboolean
gst_vp9_dec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
{
GstVP9Dec *gst_vp9_dec = GST_VP9_DEC (decoder);
GST_DEBUG_OBJECT (gst_vp9_dec, "set_format");
if (gst_vp9_dec->decoder_inited)
vpx_codec_destroy (&gst_vp9_dec->decoder);
gst_vp9_dec->decoder_inited = FALSE;
if (gst_vp9_dec->output_state) {
gst_video_codec_state_unref (gst_vp9_dec->output_state);
gst_vp9_dec->output_state = NULL;
}
if (gst_vp9_dec->input_state)
gst_video_codec_state_unref (gst_vp9_dec->input_state);
gst_vp9_dec->input_state = gst_video_codec_state_ref (state);
return TRUE;
}
static gboolean
gst_vp9_dec_flush (GstVideoDecoder * base_video_decoder)
{
GstVP9Dec *decoder;
GST_DEBUG_OBJECT (base_video_decoder, "flush");
decoder = GST_VP9_DEC (base_video_decoder);
if (decoder->output_state) {
gst_video_codec_state_unref (decoder->output_state);
decoder->output_state = NULL;
}
if (decoder->decoder_inited)
vpx_codec_destroy (&decoder->decoder);
decoder->decoder_inited = FALSE;
return TRUE;
}
static void
gst_vp9_dec_send_tags (GstVP9Dec * dec)
gst_vp9_dec_add_video_meta (GstVPXDec * dec, GstBuffer * buffer)
{
GstTagList *list;
list = gst_tag_list_new_empty ();
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
GST_TAG_VIDEO_CODEC, "VP9 video", NULL);
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (dec),
gst_event_new_tag (list));
}
#ifdef HAVE_VPX_1_4
struct Frame
{
GstMapInfo info;
GstBuffer *buffer;
};
static GstBuffer *
gst_vp9_dec_prepare_image (GstVP9Dec * dec, const vpx_image_t * img)
{
gint comp;
GstVideoMeta *vmeta;
GstBuffer *buffer;
struct Frame *frame = img->fb_priv;
GstVideoInfo *info = &dec->output_state->info;
buffer = gst_buffer_ref (frame->buffer);
vmeta = gst_buffer_get_video_meta (buffer);
vmeta->format = GST_VIDEO_INFO_FORMAT (info);
vmeta->width = GST_VIDEO_INFO_WIDTH (info);
vmeta->height = GST_VIDEO_INFO_HEIGHT (info);
vmeta->n_planes = GST_VIDEO_INFO_N_PLANES (info);
for (comp = 0; comp < 4; comp++) {
vmeta->stride[comp] = img->stride[comp];
vmeta->offset[comp] =
img->planes[comp] ? img->planes[comp] - frame->info.data : 0;
}
/* FIXME This is a READ/WRITE mapped buffer see bug #754826 */
return buffer;
}
static int
gst_vp9_dec_get_buffer_cb (gpointer priv, gsize min_size,
vpx_codec_frame_buffer_t * fb)
{
GstVP9Dec *dec = priv;
GstBuffer *buffer;
struct Frame *frame;
GstFlowReturn ret;
if (!dec->pool || dec->buf_size != min_size) {
GstBufferPool *pool;
GstStructure *config;
GstCaps *caps;
GstAllocator *allocator;
GstAllocationParams params;
if (dec->pool) {
gst_buffer_pool_set_active (dec->pool, FALSE);
gst_object_unref (dec->pool);
dec->pool = NULL;
dec->buf_size = 0;
}
gst_video_decoder_get_allocator (GST_VIDEO_DECODER (dec), &allocator,
&params);
if (allocator &&
GST_OBJECT_FLAG_IS_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC)) {
gst_object_unref (allocator);
allocator = NULL;
}
pool = gst_buffer_pool_new ();
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_allocator (config, allocator, &params);
caps = gst_caps_from_string ("video/internal");
gst_buffer_pool_config_set_params (config, caps, min_size, 2, 0);
gst_caps_unref (caps);
gst_buffer_pool_set_config (pool, config);
if (allocator)
gst_object_unref (allocator);
if (!gst_buffer_pool_set_active (pool, TRUE)) {
GST_WARNING ("Failed to create internal pool");
gst_object_unref (pool);
return -1;
}
dec->pool = pool;
dec->buf_size = min_size;
}
ret = gst_buffer_pool_acquire_buffer (dec->pool, &buffer, NULL);
if (ret != GST_FLOW_OK) {
GST_WARNING ("Failed to acquire buffer from internal pool.");
return -1;
}
/* Add it now, while the buffer is writable */
gst_buffer_add_video_meta (buffer, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_FORMAT_ENCODED, 0, 0);
frame = g_new0 (struct Frame, 1);
if (!gst_buffer_map (buffer, &frame->info, GST_MAP_READWRITE)) {
gst_buffer_unref (buffer);
g_free (frame);
GST_WARNING ("Failed to map buffer from internal pool.");
return -1;
}
fb->size = frame->info.size;
fb->data = frame->info.data;
frame->buffer = buffer;
fb->priv = frame;
GST_TRACE_OBJECT (priv, "Allocated buffer %p", frame->buffer);
return 0;
}
static int
gst_vp9_dec_release_buffer_cb (gpointer priv, vpx_codec_frame_buffer_t * fb)
{
struct Frame *frame = fb->priv;
GST_TRACE_OBJECT (priv, "Release buffer %p", frame->buffer);
g_assert (frame);
gst_buffer_unmap (frame->buffer, &frame->info);
gst_buffer_unref (frame->buffer);
g_free (frame);
return 0;
}
#endif
static void
gst_vp9_dec_image_to_buffer (GstVP9Dec * dec, const vpx_image_t * img,
GstBuffer * buffer)
{
int deststride, srcstride, height, width, line, comp;
guint8 *dest, *src;
GstVideoFrame frame;
GstVideoInfo *info = &dec->output_state->info;
if (!gst_video_frame_map (&frame, info, buffer, GST_MAP_WRITE)) {
GST_ERROR_OBJECT (dec, "Could not map video buffer");
return;
}
for (comp = 0; comp < 3; comp++) {
dest = GST_VIDEO_FRAME_COMP_DATA (&frame, comp);
src = img->planes[comp];
width = GST_VIDEO_FRAME_COMP_WIDTH (&frame, comp)
* GST_VIDEO_FRAME_COMP_PSTRIDE (&frame, comp);
height = GST_VIDEO_FRAME_COMP_HEIGHT (&frame, comp);
deststride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, comp);
srcstride = img->stride[comp];
if (srcstride == deststride) {
GST_TRACE_OBJECT (dec, "Stride matches. Comp %d: %d, copying full plane",
comp, srcstride);
memcpy (dest, src, srcstride * height);
} else {
GST_TRACE_OBJECT (dec, "Stride mismatch. Comp %d: %d != %d, copying "
"line by line.", comp, srcstride, deststride);
for (line = 0; line < height; line++) {
memcpy (dest, src, width);
dest += deststride;
src += srcstride;
}
}
}
gst_video_frame_unmap (&frame);
}
static GstFlowReturn
open_codec (GstVP9Dec * dec, GstVideoCodecFrame * frame)
{
int flags = 0;
vpx_codec_stream_info_t stream_info;
vpx_codec_caps_t caps;
vpx_codec_dec_cfg_t cfg;
vpx_codec_err_t status;
GstMapInfo minfo;
memset (&stream_info, 0, sizeof (stream_info));
memset (&cfg, 0, sizeof (cfg));
stream_info.sz = sizeof (stream_info);
if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
GST_ERROR_OBJECT (dec, "Failed to map input buffer");
return GST_FLOW_ERROR;
}
status = vpx_codec_peek_stream_info (&vpx_codec_vp9_dx_algo,
minfo.data, minfo.size, &stream_info);
gst_buffer_unmap (frame->input_buffer, &minfo);
if (status != VPX_CODEC_OK) {
GST_WARNING_OBJECT (dec, "VPX preprocessing error: %s",
gst_vpx_error_name (status));
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (dec), frame);
return GST_FLOW_CUSTOM_SUCCESS_1;
}
if (!stream_info.is_kf) {
GST_WARNING_OBJECT (dec, "No keyframe, skipping");
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (dec), frame);
return GST_FLOW_CUSTOM_SUCCESS_1;
}
/* FIXME: peek_stream_info() does not return valid values, take input caps */
stream_info.w = dec->input_state->info.width;
stream_info.h = dec->input_state->info.height;
cfg.w = stream_info.w;
cfg.h = stream_info.h;
if (dec->threads > 0)
cfg.threads = dec->threads;
else
cfg.threads = g_get_num_processors ();
caps = vpx_codec_get_caps (&vpx_codec_vp9_dx_algo);
if (dec->post_processing) {
if (!(caps & VPX_CODEC_CAP_POSTPROC)) {
GST_WARNING_OBJECT (dec, "Decoder does not support post processing");
} else {
flags |= VPX_CODEC_USE_POSTPROC;
}
}
status =
vpx_codec_dec_init (&dec->decoder, &vpx_codec_vp9_dx_algo, &cfg, flags);
if (status != VPX_CODEC_OK) {
GST_ELEMENT_ERROR (dec, LIBRARY, INIT,
("Failed to initialize VP9 decoder"), ("%s",
gst_vpx_error_name (status)));
return GST_FLOW_ERROR;
}
if ((caps & VPX_CODEC_CAP_POSTPROC) && dec->post_processing) {
vp8_postproc_cfg_t pp_cfg = { 0, };
pp_cfg.post_proc_flag = dec->post_processing_flags;
pp_cfg.deblocking_level = dec->deblocking_level;
pp_cfg.noise_level = dec->noise_level;
status = vpx_codec_control (&dec->decoder, VP8_SET_POSTPROC, &pp_cfg);
if (status != VPX_CODEC_OK) {
GST_WARNING_OBJECT (dec, "Couldn't set postprocessing settings: %s",
gst_vpx_error_name (status));
}
}
#ifdef HAVE_VPX_1_4
vpx_codec_set_frame_buffer_functions (&dec->decoder,
gst_vp9_dec_get_buffer_cb, gst_vp9_dec_release_buffer_cb, dec);
#endif
dec->decoder_inited = TRUE;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_vp9_dec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
{
GstVP9Dec *dec;
GstFlowReturn ret = GST_FLOW_OK;
vpx_codec_err_t status;
vpx_codec_iter_t iter = NULL;
vpx_image_t *img;
long decoder_deadline = 0;
GstClockTimeDiff deadline;
GstMapInfo minfo;
GST_DEBUG_OBJECT (decoder, "handle_frame");
dec = GST_VP9_DEC (decoder);
if (!dec->decoder_inited) {
ret = open_codec (dec, frame);
if (ret == GST_FLOW_CUSTOM_SUCCESS_1)
return GST_FLOW_OK;
else if (ret != GST_FLOW_OK)
return ret;
}
deadline = gst_video_decoder_get_max_decode_time (decoder, frame);
if (deadline < 0) {
decoder_deadline = 1;
} else if (deadline == G_MAXINT64) {
decoder_deadline = 0;
} else {
decoder_deadline = MAX (1, deadline / GST_MSECOND);
}
if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
GST_ERROR_OBJECT (dec, "Failed to map input buffer");
return GST_FLOW_ERROR;
}
status = vpx_codec_decode (&dec->decoder,
minfo.data, minfo.size, NULL, decoder_deadline);
gst_buffer_unmap (frame->input_buffer, &minfo);
if (status) {
GST_VIDEO_DECODER_ERROR (decoder, 1, LIBRARY, ENCODE,
("Failed to decode frame"), ("%s", gst_vpx_error_name (status)), ret);
return ret;
}
img = vpx_codec_get_frame (&dec->decoder, &iter);
if (img) {
GstVideoFormat fmt;
switch (img->fmt) {
case VPX_IMG_FMT_I420:
fmt = GST_VIDEO_FORMAT_I420;
break;
case VPX_IMG_FMT_YV12:
fmt = GST_VIDEO_FORMAT_YV12;
break;
case VPX_IMG_FMT_I422:
fmt = GST_VIDEO_FORMAT_Y42B;
break;
case VPX_IMG_FMT_I444:
fmt = GST_VIDEO_FORMAT_Y444;
break;
default:
vpx_img_free (img);
GST_ELEMENT_ERROR (decoder, LIBRARY, ENCODE,
("Failed to decode frame"), ("Unsupported color format %d",
img->fmt));
return GST_FLOW_ERROR;
break;
}
if (!dec->output_state || dec->output_state->info.finfo->format != fmt ||
dec->output_state->info.width != img->d_w ||
dec->output_state->info.height != img->d_h) {
gboolean send_tags = !dec->output_state;
if (dec->output_state)
gst_video_codec_state_unref (dec->output_state);
dec->output_state =
gst_video_decoder_set_output_state (GST_VIDEO_DECODER (dec),
fmt, img->d_w, img->d_h, dec->input_state);
gst_video_decoder_negotiate (GST_VIDEO_DECODER (dec));
if (send_tags)
gst_vp9_dec_send_tags (dec);
}
if (deadline < 0) {
GST_LOG_OBJECT (dec, "Skipping late frame (%f s past deadline)",
(double) -deadline / GST_SECOND);
gst_video_decoder_drop_frame (decoder, frame);
} else {
#ifdef HAVE_VPX_1_4
if (img->fb_priv && dec->have_video_meta) {
frame->output_buffer = gst_vp9_dec_prepare_image (dec, img);
ret = gst_video_decoder_finish_frame (decoder, frame);
} else
#endif
{
ret = gst_video_decoder_allocate_output_frame (decoder, frame);
if (ret == GST_FLOW_OK) {
gst_vp9_dec_image_to_buffer (dec, img, frame->output_buffer);
ret = gst_video_decoder_finish_frame (decoder, frame);
} else {
gst_video_decoder_drop_frame (decoder, frame);
}
}
}
vpx_img_free (img);
while ((img = vpx_codec_get_frame (&dec->decoder, &iter))) {
GST_WARNING_OBJECT (decoder, "Multiple decoded frames... dropping");
vpx_img_free (img);
}
} else {
/* Invisible frame */
GST_VIDEO_CODEC_FRAME_SET_DECODE_ONLY (frame);
gst_video_decoder_finish_frame (decoder, frame);
}
return ret;
}
static gboolean
gst_vp9_dec_decide_allocation (GstVideoDecoder * bdec, GstQuery * query)
{
GstVP9Dec *dec = GST_VP9_DEC (bdec);
GstBufferPool *pool;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (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);
dec->have_video_meta = TRUE;
}
gst_buffer_pool_set_config (pool, config);
gst_object_unref (pool);
return TRUE;
}
#endif /* HAVE_VP9_DECODER */

26
ext/vpx/gstvp9dec.h
View file

@ -31,6 +31,7 @@
#include <gst/gst.h>
#include <gst/video/gstvideodecoder.h>
#include <gstvpxdec.h>
/* FIXME: Undef HAVE_CONFIG_H because vpx_codec.h uses it,
* which causes compilation failures */
@ -59,33 +60,12 @@ typedef struct _GstVP9DecClass GstVP9DecClass;
struct _GstVP9Dec
{
GstVideoDecoder base_video_decoder;
/* < private > */
vpx_codec_ctx_t decoder;
/* state */
gboolean decoder_inited;
/* properties */
gboolean post_processing;
enum vp8_postproc_level post_processing_flags;
gint deblocking_level;
gint noise_level;
gint threads;
GstVideoCodecState *input_state;
GstVideoCodecState *output_state;
/* allocation */
gboolean have_video_meta;
GstBufferPool *pool;
gsize buf_size;
GstVPXDec base_vpx_decoder;
};
struct _GstVP9DecClass
{
GstVideoDecoderClass base_video_decoder_class;
GstVPXDecClass base_vpx_class;
};
GType gst_vp9_dec_get_type (void);

808
ext/vpx/gstvpxdec.c Normal file
View file

@ -0,0 +1,808 @@
/* VPX
* Copyright (C) 2006 David Schleef <ds@schleef.org>
* Copyright (C) 2008,2009,2010 Entropy Wave Inc
* Copyright (C) 2010-2012 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
#if defined(HAVE_VP8_DECODER) || defined(HAVE_VP9_DECODER)
#include <string.h>
#include "gstvpxdec.h"
#include "gstvp8utils.h"
#include <gst/video/gstvideometa.h>
#include <gst/video/gstvideopool.h>
GST_DEBUG_CATEGORY_STATIC (gst_vpxdec_debug);
#define GST_CAT_DEFAULT gst_vpxdec_debug
#define DEFAULT_POST_PROCESSING FALSE
#define DEFAULT_POST_PROCESSING_FLAGS (VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE)
#define DEFAULT_DEBLOCKING_LEVEL 4
#define DEFAULT_NOISE_LEVEL 0
#define DEFAULT_THREADS 0
#define DEFAULT_VIDEO_CODEC_TAG NULL
#define DEFAULT_CODEC_ALGO NULL
enum
{
PROP_0,
PROP_POST_PROCESSING,
PROP_POST_PROCESSING_FLAGS,
PROP_DEBLOCKING_LEVEL,
PROP_NOISE_LEVEL,
PROP_THREADS
};
#define C_FLAGS(v) ((guint) v)
#define GST_VPX_DEC_TYPE_POST_PROCESSING_FLAGS (gst_vpx_dec_post_processing_flags_get_type())
static GType
gst_vpx_dec_post_processing_flags_get_type (void)
{
static const GFlagsValue values[] = {
{C_FLAGS (VP8_DEBLOCK), "Deblock", "deblock"},
{C_FLAGS (VP8_DEMACROBLOCK), "Demacroblock", "demacroblock"},
{C_FLAGS (VP8_ADDNOISE), "Add noise", "addnoise"},
{C_FLAGS (VP8_MFQE), "Multi-frame quality enhancement", "mfqe"},
{0, NULL, NULL}
};
static volatile GType id = 0;
if (g_once_init_enter ((gsize *) & id)) {
GType _id;
_id = g_flags_register_static ("GstVPXDecPostProcessingFlags", values);
g_once_init_leave ((gsize *) & id, _id);
}
return id;
}
#undef C_FLAGS
static void gst_vpx_dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_vpx_dec_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_vpx_dec_start (GstVideoDecoder * decoder);
static gboolean gst_vpx_dec_stop (GstVideoDecoder * decoder);
static gboolean gst_vpx_dec_set_format (GstVideoDecoder * decoder,
GstVideoCodecState * state);
static gboolean gst_vpx_dec_flush (GstVideoDecoder * decoder);
static GstFlowReturn
gst_vpx_dec_handle_frame (GstVideoDecoder * decoder,
GstVideoCodecFrame * frame);
static gboolean gst_vpx_dec_decide_allocation (GstVideoDecoder * decoder,
GstQuery * query);
static void gst_vpx_dec_image_to_buffer (GstVPXDec * dec,
const vpx_image_t * img, GstBuffer * buffer);
static GstFlowReturn gst_vpx_dec_open_codec (GstVPXDec * dec,
GstVideoCodecFrame * frame);
static void gst_vpx_dec_default_send_tags (GstVPXDec * dec);
static void gst_vpx_dec_set_stream_info (GstVPXDec * dec,
vpx_codec_stream_info_t * stream_info);
static void gst_vpx_dec_set_default_format (GstVPXDec * dec, GstVideoFormat fmt,
int width, int height);
static gboolean gst_vpx_dec_default_frame_format (GstVPXDec * dec,
vpx_image_t * img, GstVideoFormat * fmt);
static void gst_vpx_dec_handle_resolution_change (GstVPXDec * dec,
vpx_image_t * img, GstVideoFormat fmt);
#ifdef HAVE_VPX_1_4
static void gst_vpx_dec_default_add_video_meta (GstVPXDec * dec,
GstBuffer * buffer);
#endif //HAVE_VPX_1_4
#define parent_class gst_vpx_dec_parent_class
G_DEFINE_TYPE (GstVPXDec, gst_vpx_dec, GST_TYPE_VIDEO_DECODER);
static void
gst_vpx_dec_class_init (GstVPXDecClass * klass)
{
GObjectClass *gobject_class;
GstVideoDecoderClass *base_video_decoder_class;
gobject_class = G_OBJECT_CLASS (klass);
base_video_decoder_class = GST_VIDEO_DECODER_CLASS (klass);
gobject_class->set_property = gst_vpx_dec_set_property;
gobject_class->get_property = gst_vpx_dec_get_property;
g_object_class_install_property (gobject_class, PROP_POST_PROCESSING,
g_param_spec_boolean ("post-processing", "Post Processing",
"Enable post processing", DEFAULT_POST_PROCESSING,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_POST_PROCESSING_FLAGS,
g_param_spec_flags ("post-processing-flags", "Post Processing Flags",
"Flags to control post processing",
GST_VPX_DEC_TYPE_POST_PROCESSING_FLAGS, DEFAULT_POST_PROCESSING_FLAGS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_DEBLOCKING_LEVEL,
g_param_spec_uint ("deblocking-level", "Deblocking Level",
"Deblocking level",
0, 16, DEFAULT_DEBLOCKING_LEVEL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_NOISE_LEVEL,
g_param_spec_uint ("noise-level", "Noise Level",
"Noise level",
0, 16, DEFAULT_NOISE_LEVEL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_THREADS,
g_param_spec_uint ("threads", "Max Threads",
"Maximum number of decoding threads",
0, 16, DEFAULT_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
base_video_decoder_class->start = GST_DEBUG_FUNCPTR (gst_vpx_dec_start);
base_video_decoder_class->stop = GST_DEBUG_FUNCPTR (gst_vpx_dec_stop);
base_video_decoder_class->flush = GST_DEBUG_FUNCPTR (gst_vpx_dec_flush);
base_video_decoder_class->set_format =
GST_DEBUG_FUNCPTR (gst_vpx_dec_set_format);
base_video_decoder_class->handle_frame =
GST_DEBUG_FUNCPTR (gst_vpx_dec_handle_frame);;
base_video_decoder_class->decide_allocation =
GST_DEBUG_FUNCPTR (gst_vpx_dec_decide_allocation);
klass->video_codec_tag = DEFAULT_VIDEO_CODEC_TAG;
klass->codec_algo = DEFAULT_CODEC_ALGO;
klass->open_codec = GST_DEBUG_FUNCPTR (gst_vpx_dec_open_codec);
klass->send_tags = GST_DEBUG_FUNCPTR (gst_vpx_dec_default_send_tags);
klass->set_stream_info = NULL;
klass->set_default_format = NULL;
klass->handle_resolution_change = NULL;
klass->get_frame_format =
GST_DEBUG_FUNCPTR (gst_vpx_dec_default_frame_format);
klass->add_video_meta = NULL;
GST_DEBUG_CATEGORY_INIT (gst_vpxdec_debug, "vpxdec", 0, "VPX Decoder");
}
static void
gst_vpx_dec_init (GstVPXDec * gst_vpx_dec)
{
GstVideoDecoder *decoder = (GstVideoDecoder *) gst_vpx_dec;
GST_DEBUG_OBJECT (gst_vpx_dec, "gst_vpx_dec_init");
gst_video_decoder_set_packetized (decoder, TRUE);
gst_vpx_dec->post_processing = DEFAULT_POST_PROCESSING;
gst_vpx_dec->post_processing_flags = DEFAULT_POST_PROCESSING_FLAGS;
gst_vpx_dec->deblocking_level = DEFAULT_DEBLOCKING_LEVEL;
gst_vpx_dec->noise_level = DEFAULT_NOISE_LEVEL;
gst_video_decoder_set_needs_format (decoder, TRUE);
gst_video_decoder_set_use_default_pad_acceptcaps (decoder, TRUE);
GST_PAD_SET_ACCEPT_TEMPLATE (GST_VIDEO_DECODER_SINK_PAD (decoder));
}
static void
gst_vpx_dec_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVPXDec *dec;
g_return_if_fail (GST_IS_VPX_DEC (object));
dec = GST_VPX_DEC (object);
GST_DEBUG_OBJECT (object, "gst_vpx_dec_set_property");
switch (prop_id) {
case PROP_POST_PROCESSING:
dec->post_processing = g_value_get_boolean (value);
break;
case PROP_POST_PROCESSING_FLAGS:
dec->post_processing_flags = g_value_get_flags (value);
break;
case PROP_DEBLOCKING_LEVEL:
dec->deblocking_level = g_value_get_uint (value);
break;
case PROP_NOISE_LEVEL:
dec->noise_level = g_value_get_uint (value);
break;
case PROP_THREADS:
dec->threads = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vpx_dec_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstVPXDec *dec;
g_return_if_fail (GST_IS_VPX_DEC (object));
dec = GST_VPX_DEC (object);
switch (prop_id) {
case PROP_POST_PROCESSING:
g_value_set_boolean (value, dec->post_processing);
break;
case PROP_POST_PROCESSING_FLAGS:
g_value_set_flags (value, dec->post_processing_flags);
break;
case PROP_DEBLOCKING_LEVEL:
g_value_set_uint (value, dec->deblocking_level);
break;
case PROP_NOISE_LEVEL:
g_value_set_uint (value, dec->noise_level);
break;
case PROP_THREADS:
g_value_set_uint (value, dec->threads);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_vpx_dec_start (GstVideoDecoder * decoder)
{
GstVPXDec *gst_vpx_dec = GST_VPX_DEC (decoder);
GST_DEBUG_OBJECT (gst_vpx_dec, "start");
gst_vpx_dec->decoder_inited = FALSE;
return TRUE;
}
static gboolean
gst_vpx_dec_stop (GstVideoDecoder * base_video_decoder)
{
GstVPXDec *gst_vpx_dec = GST_VPX_DEC (base_video_decoder);
GST_DEBUG_OBJECT (gst_vpx_dec, "stop");
if (gst_vpx_dec->output_state) {
gst_video_codec_state_unref (gst_vpx_dec->output_state);
gst_vpx_dec->output_state = NULL;
}
if (gst_vpx_dec->input_state) {
gst_video_codec_state_unref (gst_vpx_dec->input_state);
gst_vpx_dec->input_state = NULL;
}
if (gst_vpx_dec->decoder_inited)
vpx_codec_destroy (&gst_vpx_dec->decoder);
gst_vpx_dec->decoder_inited = FALSE;
if (gst_vpx_dec->pool) {
gst_buffer_pool_set_active (gst_vpx_dec->pool, FALSE);
gst_object_unref (gst_vpx_dec->pool);
gst_vpx_dec->pool = NULL;
gst_vpx_dec->buf_size = 0;
}
return TRUE;
}
static gboolean
gst_vpx_dec_set_format (GstVideoDecoder * decoder, GstVideoCodecState * state)
{
GstVPXDec *gst_vpx_dec = GST_VPX_DEC (decoder);
GST_DEBUG_OBJECT (gst_vpx_dec, "set_format");
if (gst_vpx_dec->decoder_inited)
vpx_codec_destroy (&gst_vpx_dec->decoder);
gst_vpx_dec->decoder_inited = FALSE;
if (gst_vpx_dec->output_state) {
gst_video_codec_state_unref (gst_vpx_dec->output_state);
gst_vpx_dec->output_state = NULL;
}
if (gst_vpx_dec->input_state) {
gst_video_codec_state_unref (gst_vpx_dec->input_state);
}
gst_vpx_dec->input_state = gst_video_codec_state_ref (state);
return TRUE;
}
static gboolean
gst_vpx_dec_flush (GstVideoDecoder * base_video_decoder)
{
GstVPXDec *decoder;
GST_DEBUG_OBJECT (base_video_decoder, "flush");
decoder = GST_VPX_DEC (base_video_decoder);
if (decoder->output_state) {
gst_video_codec_state_unref (decoder->output_state);
decoder->output_state = NULL;
}
if (decoder->decoder_inited)
vpx_codec_destroy (&decoder->decoder);
decoder->decoder_inited = FALSE;
return TRUE;
}
static void
gst_vpx_dec_default_send_tags (GstVPXDec * dec)
{
GstTagList *list;
GstVPXDecClass *vpxclass = GST_VPX_DEC_GET_CLASS (dec);
if (vpxclass->video_codec_tag == NULL)
return;
list = gst_tag_list_new_empty ();
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
GST_TAG_VIDEO_CODEC, vpxclass->video_codec_tag, NULL);
gst_pad_push_event (GST_VIDEO_DECODER_SRC_PAD (dec),
gst_event_new_tag (list));
}
#ifdef HAVE_VPX_1_4
struct Frame
{
GstMapInfo info;
GstBuffer *buffer;
};
static GstBuffer *
gst_vpx_dec_prepare_image (GstVPXDec * dec, const vpx_image_t * img)
{
gint comp;
GstVideoMeta *vmeta;
GstBuffer *buffer;
struct Frame *frame = img->fb_priv;
GstVideoInfo *info = &dec->output_state->info;
buffer = gst_buffer_ref (frame->buffer);
vmeta = gst_buffer_get_video_meta (buffer);
vmeta->format = GST_VIDEO_INFO_FORMAT (info);
vmeta->width = GST_VIDEO_INFO_WIDTH (info);
vmeta->height = GST_VIDEO_INFO_HEIGHT (info);
vmeta->n_planes = GST_VIDEO_INFO_N_PLANES (info);
for (comp = 0; comp < 4; comp++) {
vmeta->stride[comp] = img->stride[comp];
vmeta->offset[comp] =
img->planes[comp] ? img->planes[comp] - frame->info.data : 0;
}
/* FIXME This is a READ/WRITE mapped buffer see bug #754826 */
return buffer;
}
static int
gst_vpx_dec_get_buffer_cb (gpointer priv, gsize min_size,
vpx_codec_frame_buffer_t * fb)
{
GstVPXDec *dec = priv;
GstBuffer *buffer;
struct Frame *frame;
GstFlowReturn ret;
if (!dec->pool || dec->buf_size != min_size) {
GstBufferPool *pool;
GstStructure *config;
GstCaps *caps;
GstAllocator *allocator;
GstAllocationParams params;
if (dec->pool) {
gst_buffer_pool_set_active (dec->pool, FALSE);
gst_object_unref (dec->pool);
dec->pool = NULL;
dec->buf_size = 0;
}
gst_video_decoder_get_allocator (GST_VIDEO_DECODER (dec), &allocator,
&params);
if (allocator &&
GST_OBJECT_FLAG_IS_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC)) {
gst_object_unref (allocator);
allocator = NULL;
}
pool = gst_buffer_pool_new ();
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_allocator (config, allocator, &params);
caps = gst_caps_from_string ("video/internal");
gst_buffer_pool_config_set_params (config, caps, min_size, 2, 0);
gst_caps_unref (caps);
gst_buffer_pool_set_config (pool, config);
if (allocator)
gst_object_unref (allocator);
if (!gst_buffer_pool_set_active (pool, TRUE)) {
GST_WARNING ("Failed to create internal pool");
gst_object_unref (pool);
return -1;
}
dec->pool = pool;
dec->buf_size = min_size;
}
ret = gst_buffer_pool_acquire_buffer (dec->pool, &buffer, NULL);
if (ret != GST_FLOW_OK) {
GST_WARNING ("Failed to acquire buffer from internal pool.");
return -1;
}
gst_vpx_dec_default_add_video_meta (dec, buffer);
frame = g_new0 (struct Frame, 1);
if (!gst_buffer_map (buffer, &frame->info, GST_MAP_READWRITE)) {
gst_buffer_unref (buffer);
g_free (frame);
GST_WARNING ("Failed to map buffer from internal pool.");
return -1;
}
fb->size = frame->info.size;
fb->data = frame->info.data;
frame->buffer = buffer;
fb->priv = frame;
GST_TRACE_OBJECT (priv, "Allocated buffer %p", frame->buffer);
return 0;
}
static int
gst_vpx_dec_release_buffer_cb (gpointer priv, vpx_codec_frame_buffer_t * fb)
{
struct Frame *frame = fb->priv;
GST_TRACE_OBJECT (priv, "Release buffer %p", frame->buffer);
g_assert (frame);
gst_buffer_unmap (frame->buffer, &frame->info);
gst_buffer_unref (frame->buffer);
g_free (frame);
return 0;
}
#endif
static void
gst_vpx_dec_image_to_buffer (GstVPXDec * dec, const vpx_image_t * img,
GstBuffer * buffer)
{
int deststride, srcstride, height, width, line, comp;
guint8 *dest, *src;
GstVideoFrame frame;
GstVideoInfo *info = &dec->output_state->info;
if (!gst_video_frame_map (&frame, info, buffer, GST_MAP_WRITE)) {
GST_ERROR_OBJECT (dec, "Could not map video buffer");
return;
}
for (comp = 0; comp < 3; comp++) {
dest = GST_VIDEO_FRAME_COMP_DATA (&frame, comp);
src = img->planes[comp];
width = GST_VIDEO_FRAME_COMP_WIDTH (&frame, comp)
* GST_VIDEO_FRAME_COMP_PSTRIDE (&frame, comp);
height = GST_VIDEO_FRAME_COMP_HEIGHT (&frame, comp);
deststride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, comp);
srcstride = img->stride[comp];
if (srcstride == deststride) {
GST_TRACE_OBJECT (dec, "Stride matches. Comp %d: %d, copying full plane",
comp, srcstride);
memcpy (dest, src, srcstride * height);
} else {
GST_TRACE_OBJECT (dec, "Stride mismatch. Comp %d: %d != %d, copying "
"line by line.", comp, srcstride, deststride);
for (line = 0; line < height; line++) {
memcpy (dest, src, width);
dest += deststride;
src += srcstride;
}
}
}
gst_video_frame_unmap (&frame);
}
static GstFlowReturn
gst_vpx_dec_open_codec (GstVPXDec * dec, GstVideoCodecFrame * frame)
{
int flags = 0;
vpx_codec_stream_info_t stream_info;
vpx_codec_caps_t caps;
vpx_codec_dec_cfg_t cfg;
vpx_codec_err_t status;
GstMapInfo minfo;
GstVPXDecClass *vpxclass = GST_VPX_DEC_GET_CLASS (dec);
g_return_val_if_fail (vpxclass->codec_algo != NULL, GST_FLOW_ERROR);
memset (&stream_info, 0, sizeof (stream_info));
memset (&cfg, 0, sizeof (cfg));
stream_info.sz = sizeof (stream_info);
if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
GST_ERROR_OBJECT (dec, "Failed to map input buffer");
return GST_FLOW_ERROR;
}
status = vpx_codec_peek_stream_info (vpxclass->codec_algo,
minfo.data, minfo.size, &stream_info);
gst_buffer_unmap (frame->input_buffer, &minfo);
if (status != VPX_CODEC_OK) {
GST_WARNING_OBJECT (dec, "VPX preprocessing error: %s",
gst_vpx_error_name (status));
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (dec), frame);
return GST_FLOW_CUSTOM_SUCCESS_1;
}
if (!stream_info.is_kf) {
GST_WARNING_OBJECT (dec, "No keyframe, skipping");
gst_video_decoder_drop_frame (GST_VIDEO_DECODER (dec), frame);
return GST_FLOW_CUSTOM_SUCCESS_1;
}
gst_vpx_dec_set_stream_info (dec, &stream_info);
gst_vpx_dec_set_default_format (dec, GST_VIDEO_FORMAT_I420, stream_info.w,
stream_info.h);
cfg.w = stream_info.w;
cfg.h = stream_info.h;
cfg.threads = dec->threads;
caps = vpx_codec_get_caps (vpxclass->codec_algo);
if (dec->post_processing) {
if (!(caps & VPX_CODEC_CAP_POSTPROC)) {
GST_WARNING_OBJECT (dec, "Decoder does not support post processing");
} else {
flags |= VPX_CODEC_USE_POSTPROC;
}
}
status =
vpx_codec_dec_init (&dec->decoder, vpxclass->codec_algo, &cfg, flags);
if (status != VPX_CODEC_OK) {
GST_ELEMENT_ERROR (dec, LIBRARY, INIT,
("Failed to initialize VP8 decoder"), ("%s",
gst_vpx_error_name (status)));
return GST_FLOW_ERROR;
}
if ((caps & VPX_CODEC_CAP_POSTPROC) && dec->post_processing) {
vp8_postproc_cfg_t pp_cfg = { 0, };
pp_cfg.post_proc_flag = dec->post_processing_flags;
pp_cfg.deblocking_level = dec->deblocking_level;
pp_cfg.noise_level = dec->noise_level;
status = vpx_codec_control (&dec->decoder, VP8_SET_POSTPROC, &pp_cfg);
if (status != VPX_CODEC_OK) {
GST_WARNING_OBJECT (dec, "Couldn't set postprocessing settings: %s",
gst_vpx_error_name (status));
}
}
#ifdef HAVE_VPX_1_4
vpx_codec_set_frame_buffer_functions (&dec->decoder,
gst_vpx_dec_get_buffer_cb, gst_vpx_dec_release_buffer_cb, dec);
#endif
dec->decoder_inited = TRUE;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_vpx_dec_handle_frame (GstVideoDecoder * decoder, GstVideoCodecFrame * frame)
{
GstVPXDec *dec;
GstFlowReturn ret = GST_FLOW_OK;
vpx_codec_err_t status;
vpx_codec_iter_t iter = NULL;
vpx_image_t *img;
long decoder_deadline = 0;
GstClockTimeDiff deadline;
GstMapInfo minfo;
GstVPXDecClass *vpxclass;
GstVideoFormat fmt;
GST_LOG_OBJECT (decoder, "handle_frame");
dec = GST_VPX_DEC (decoder);
vpxclass = GST_VPX_DEC_GET_CLASS (dec);
if (!dec->decoder_inited) {
ret = vpxclass->open_codec (dec, frame);
if (ret == GST_FLOW_CUSTOM_SUCCESS_1)
return GST_FLOW_OK;
else if (ret != GST_FLOW_OK)
return ret;
}
deadline = gst_video_decoder_get_max_decode_time (decoder, frame);
if (deadline < 0) {
decoder_deadline = 1;
} else if (deadline == G_MAXINT64) {
decoder_deadline = 0;
} else {
decoder_deadline = MAX (1, deadline / GST_MSECOND);
}
if (!gst_buffer_map (frame->input_buffer, &minfo, GST_MAP_READ)) {
GST_ERROR_OBJECT (dec, "Failed to map input buffer");
return GST_FLOW_ERROR;
}
status = vpx_codec_decode (&dec->decoder,
minfo.data, minfo.size, NULL, decoder_deadline);
gst_buffer_unmap (frame->input_buffer, &minfo);
if (status) {
GST_VIDEO_DECODER_ERROR (decoder, 1, LIBRARY, ENCODE,
("Failed to decode frame"), ("%s", gst_vpx_error_name (status)), ret);
return ret;
}
img = vpx_codec_get_frame (&dec->decoder, &iter);
if (img) {
if (vpxclass->get_frame_format (dec, img, &fmt) == FALSE) {
vpx_img_free (img);
GST_ELEMENT_ERROR (decoder, LIBRARY, ENCODE,
("Failed to decode frame"), ("Unsupported color format %d",
img->fmt));
return GST_FLOW_ERROR;
}
if (deadline < 0) {
GST_LOG_OBJECT (dec, "Skipping late frame (%f s past deadline)",
(double) -deadline / GST_SECOND);
gst_video_decoder_drop_frame (decoder, frame);
} else {
gst_vpx_dec_handle_resolution_change (dec, img, fmt);
#ifdef HAVE_VPX_1_4
if (img->fb_priv && dec->have_video_meta) {
frame->output_buffer = gst_vpx_dec_prepare_image (dec, img);
ret = gst_video_decoder_finish_frame (decoder, frame);
} else
#endif
{
ret = gst_video_decoder_allocate_output_frame (decoder, frame);
if (ret == GST_FLOW_OK) {
gst_vpx_dec_image_to_buffer (dec, img, frame->output_buffer);
ret = gst_video_decoder_finish_frame (decoder, frame);
} else {
gst_video_decoder_drop_frame (decoder, frame);
}
}
}
vpx_img_free (img);
while ((img = vpx_codec_get_frame (&dec->decoder, &iter))) {
GST_WARNING_OBJECT (decoder, "Multiple decoded frames... dropping");
vpx_img_free (img);
}
} else {
/* Invisible frame */
GST_VIDEO_CODEC_FRAME_SET_DECODE_ONLY (frame);
gst_video_decoder_finish_frame (decoder, frame);
}
return ret;
}
static gboolean
gst_vpx_dec_decide_allocation (GstVideoDecoder * bdec, GstQuery * query)
{
GstBufferPool *pool;
GstStructure *config;
if (!GST_VIDEO_DECODER_CLASS (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;
}
static void
gst_vpx_dec_set_stream_info (GstVPXDec * dec,
vpx_codec_stream_info_t * stream_info)
{
GstVPXDecClass *vpxclass = GST_VPX_DEC_GET_CLASS (dec);
if (vpxclass->set_stream_info != NULL) {
vpxclass->set_stream_info (dec, stream_info);
}
}
static void
gst_vpx_dec_set_default_format (GstVPXDec * dec, GstVideoFormat fmt, int width,
int height)
{
GstVPXDecClass *vpxclass = GST_VPX_DEC_GET_CLASS (dec);
if (vpxclass->set_default_format != NULL) {
vpxclass->set_default_format (dec, fmt, width, height);
}
}
static gboolean
gst_vpx_dec_default_frame_format (GstVPXDec * dec, vpx_image_t * img,
GstVideoFormat * fmt)
{
if (img->fmt == VPX_IMG_FMT_I420) {
*fmt = GST_VIDEO_FORMAT_I420;
return TRUE;
} else {
return FALSE;
}
}
static void
gst_vpx_dec_handle_resolution_change (GstVPXDec * dec, vpx_image_t * img,
GstVideoFormat fmt)
{
GstVPXDecClass *vpxclass = GST_VPX_DEC_GET_CLASS (dec);
if (vpxclass->handle_resolution_change != NULL) {
vpxclass->handle_resolution_change (dec, img, fmt);
}
}
#ifdef HAVE_VPX_1_4
static void
gst_vpx_dec_default_add_video_meta (GstVPXDec * dec, GstBuffer * buffer)
{
GstVPXDecClass *vpxclass = GST_VPX_DEC_GET_CLASS (dec);
if (vpxclass->add_video_meta != NULL) {
vpxclass->add_video_meta (dec, buffer);
}
}
#endif //HAVE_VPX_1_4
#endif /* HAVE_VP8_DECODER || HAVE_VP9_DECODER */

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ext/vpx/gstvpxdec.h Normal file
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/* VPX
* Copyright (C) 2006 David Schleef <ds@schleef.org>
* Copyright (C) 2008,2009,2010 Entropy Wave Inc
* Copyright (C) 2010 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.
*
*/
#ifndef __GST_VPX_DEC_H__
#define __GST_VPX_DEC_H__
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#if defined(HAVE_VP8_DECODER) || defined(HAVE_VP9_DECODER)
#include <gst/gst.h>
#include <gst/video/gstvideodecoder.h>
/* FIXME: Undef HAVE_CONFIG_H because vpx_codec.h uses it,
* which causes compilation failures */
#ifdef HAVE_CONFIG_H
#undef HAVE_CONFIG_H
#endif
#include <vpx/vpx_decoder.h>
#include <vpx/vp8dx.h>
G_BEGIN_DECLS
#define GST_TYPE_VPX_DEC \
(gst_vpx_dec_get_type())
#define GST_VPX_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VPX_DEC,GstVPXDec))
#define GST_VPX_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VPX_DEC,GstVPXDecClass))
#define GST_IS_VPX_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VPX_DEC))
#define GST_IS_VPX_DEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VPX_DEC))
#define GST_VPX_DEC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VPX_DEC, GstVPXDecClass))
typedef struct _GstVPXDec GstVPXDec;
typedef struct _GstVPXDecClass GstVPXDecClass;
struct _GstVPXDec
{
GstVideoDecoder base_video_decoder;
/* < private > */
vpx_codec_ctx_t decoder;
/* state */
gboolean decoder_inited;
/* properties */
gboolean post_processing;
enum vp8_postproc_level post_processing_flags;
gint deblocking_level;
gint noise_level;
gint threads;
GstVideoCodecState *input_state;
GstVideoCodecState *output_state;
/* allocation */
gboolean have_video_meta;
GstBufferPool *pool;
gsize buf_size;
};
struct _GstVPXDecClass
{
GstVideoDecoderClass base_video_decoder_class;
const char* video_codec_tag;
/*supported vpx algo*/
vpx_codec_iface_t* codec_algo;
/*virtual function to open_codec*/
GstFlowReturn (*open_codec) (GstVPXDec * dec, GstVideoCodecFrame * frame);
/*virtual function to send tags*/
void (*send_tags) (GstVPXDec* dec);
/*virtual function to set/correct the stream info*/
void (*set_stream_info) (GstVPXDec *dec, vpx_codec_stream_info_t *stream_info);
/*virtual function to set default format while opening codec*/
void (*set_default_format) (GstVPXDec *dec, GstVideoFormat fmt, int width, int height);
/*virtual function to negotiate format while handling frame*/
void (*handle_resolution_change) (GstVPXDec *dec, vpx_image_t *img, GstVideoFormat fmt);
/*virtual function to check valid format*/
gboolean (*get_frame_format)(GstVPXDec *dec, vpx_image_t *img, GstVideoFormat* fmt);
/*virtual function to write video meta data to buffer*/
void (*add_video_meta)(GstVPXDec *dec, GstBuffer* buffer);
};
GType gst_vpx_dec_get_type (void);
G_END_DECLS
#endif
#endif /* __GST_VP8_DEC_H__ */