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gstreamer/subprojects/gst-plugins-bad/ext/svtjpegxs/gstsvtjpegxsenc.c

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/* GStreamer SVT JPEG XS encoder
* Copyright (C) 2024 Tim-Philipp Müller <tim centricular com>
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
/**
* SECTION:element-svtjpegxsenc
*
* The svtjpegxsenc element does JPEG XS encoding using Scalable
* Video Technology for JPEG_XS Encoder (SVT JPEG XS Encoder).
*
* See https://jpeg.org/jpegxs/ for more information about the JPEG XS format.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch-1.0 -e videotestsrc ! svtjpegxsenc ! mpegtsmux ! filesink location=out.ts
* ]|
* Encodes test video input into a JPEG XS compressed image stream which is
* then packaged into an MPEG-TS container.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstsvtjpegxsenc.h"
GST_DEBUG_CATEGORY_STATIC (svtjpegxsenc_debug);
#define GST_CAT_DEFAULT svtjpegxsenc_debug
static const uint8_t BLOCKING = 1;
#define GST_SVT_JPEG_XS_ENC_TYPE_QUANT_MODE (gst_svt_jpeg_xs_enc_quant_mode_get_type())
static GType
gst_svt_jpeg_xs_enc_quant_mode_get_type (void)
{
static GType quant_mode_type = 0;
static const GEnumValue quant_modes[] = {
{0, "Deadzone", "deadzone"},
{1, "Uniform", "uniform"},
{0, NULL, NULL},
};
if (!quant_mode_type) {
quant_mode_type =
g_enum_register_static ("GstSvtJpegXsEncQuantModeType", quant_modes);
}
return quant_mode_type;
}
#define GST_SVT_JPEG_XS_ENC_TYPE_RATE_CONTROL_MODE (gst_svt_jpeg_xs_enc_rate_control_mode_get_type())
static GType
gst_svt_jpeg_xs_enc_rate_control_mode_get_type (void)
{
static GType rc_mode_type = 0;
static const GEnumValue rc_modes[] = {
{0, "CBR budget per precinct", "cbr-precinct"},
{1, "CBR budget per precinct move padding", "cbr-precinct-move-padding"},
{2, "CBR budget per slice", "cbr-slice"},
// Not implemented yet in library
// {3, "CBR budget per slice with max rate size", "cbr-slice-with-max-rate-size"},
{0, NULL, NULL},
};
if (!rc_mode_type) {
rc_mode_type =
g_enum_register_static ("GstSvtJpegXsEncRateControlModeType", rc_modes);
}
return rc_mode_type;
}
#define GST_SVT_JPEG_XS_ENC_TYPE_CODING_SIGNS (gst_svt_jpeg_xs_enc_coding_signs_get_type())
static GType
gst_svt_jpeg_xs_enc_coding_signs_get_type (void)
{
static GType cs_type = 0;
static const GEnumValue coding_signs[] = {
{0, "Disable", "disable"},
{1, "Fast", "fast"},
{2, "Full", "full"},
{0, NULL, NULL},
};
if (!cs_type) {
cs_type =
g_enum_register_static ("GstSvtJpegXsEncCodingSignsType", coding_signs);
}
return cs_type;
}
typedef struct _GstSvtJpegXsEnc
{
GstVideoEncoder video_encoder;
// SVT JPEG XS encoder handle
svt_jpeg_xs_encoder_api_t *jxs_encoder;
uint32_t bytes_per_frame;
// Video encoder base class codec state
GstVideoCodecState *state;
// Properties
double bits_per_pixel;
int decomp_v;
int decomp_h;
int slice_height;
int threads;
int quant_mode;
int rate_control_mode;
int coding_signs;
} GstSvtJpegXsEnc;
static void gst_svt_jpeg_xs_enc_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_svt_jpeg_xs_enc_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec);
static void gst_svt_jpeg_xs_enc_finalize (GObject * object);
static gboolean gst_svt_jpeg_xs_enc_start (GstVideoEncoder * encoder);
static gboolean gst_svt_jpeg_xs_enc_stop (GstVideoEncoder * encoder);
static gboolean gst_svt_jpeg_xs_enc_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state);
static GstFlowReturn gst_svt_jpeg_xs_enc_handle_frame (GstVideoEncoder *
encoder, GstVideoCodecFrame * frame);
static gboolean gst_svt_jpeg_xs_enc_propose_allocation (GstVideoEncoder * venc,
GstQuery * query);
enum
{
PROP_BITS_PER_PIXEL = 1,
PROP_DECOMP_H,
PROP_DECOMP_V,
PROP_SLICE_HEIGHT,
PROP_THREADS,
PROP_QUANT_MODE,
PROP_RATE_CONTROL_MODE,
PROP_CODING_SIGNS,
};
#define DEFAULT_BITS_PER_PIXEL 3 // or add an auto default for bpp?
#define DEFAULT_DECOMP_H 5
#define DEFAULT_DECOMP_V 2
#define DEFAULT_SLICE_HEIGHT 16
#define DEFAULT_THREADS 0
#define DEFAULT_QUANT_MODE 0
#define DEFAULT_RATE_CONTROL_MODE 0
#define DEFAULT_CODING_SIGNS 0
#define FORMATS_8_BIT "Y444, Y42B, I420"
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
#define FORMATS_10_BIT "Y444_10LE, I422_10LE, I420_10LE"
#define FORMATS_12_BIT "Y444_12LE, I422_12LE, I420_12LE"
#else
#define FORMATS_10_BIT "Y444_10BE, I422_10BE, I420_10BE"
#define FORMATS_12_BIT "Y444_12BE, I422_12BE, I420_12BE"
#endif
#define SUPPORTED_FORMATS FORMATS_8_BIT ", " FORMATS_10_BIT ", " FORMATS_12_BIT
// FIXME: add 4:2:2 and 4:4:4 packed formats
// Only handle progressive mode for now
static GstStaticPadTemplate sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw, "
"format = { " SUPPORTED_FORMATS " },"
"interlace-mode = progressive, "
"width = (int) [16, 16384], " "height = (int) [16, 16384], "
"framerate = (fraction) [0, MAX]"));
static GstStaticPadTemplate src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("image/x-jxsc, alignment = frame, "
"width = (int) [16, 16384], height = (int) [16, 16384], "
"sampling = { YCbCr-4:4:4, YCbCr-4:2:2, YCbCr-4:2:0 }, "
"framerate = (fraction) [0, MAX]"));
#define gst_svt_jpeg_xs_enc_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstSvtJpegXsEnc, gst_svt_jpeg_xs_enc,
GST_TYPE_VIDEO_ENCODER, GST_DEBUG_CATEGORY_INIT (svtjpegxsenc_debug,
"svtjpegxsenc", 0, "SVT JPEG XS encoder element"));
GST_ELEMENT_REGISTER_DEFINE (svtjpegxsenc, "svtjpegxsenc", GST_RANK_SECONDARY,
gst_svt_jpeg_xs_enc_get_type ());
static void
gst_svt_jpeg_xs_enc_class_init (GstSvtJpegXsEncClass * klass)
{
GstVideoEncoderClass *video_encoder_class = GST_VIDEO_ENCODER_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gst_element_class_add_static_pad_template (element_class, &src_pad_template);
gst_element_class_add_static_pad_template (element_class, &sink_pad_template);
gst_element_class_set_static_metadata (element_class,
"SVT JPEG XS encoder",
"Codec/Encoder/Video",
"Scalable Video Technology for JPEG XS Encoder",
"Tim-Philipp Müller <tim centricular com>");
gobject_class->set_property = gst_svt_jpeg_xs_enc_set_property;
gobject_class->get_property = gst_svt_jpeg_xs_enc_get_property;
gobject_class->finalize = gst_svt_jpeg_xs_enc_finalize;
video_encoder_class->start = gst_svt_jpeg_xs_enc_start;
video_encoder_class->stop = gst_svt_jpeg_xs_enc_stop;
video_encoder_class->set_format = gst_svt_jpeg_xs_enc_set_format;
video_encoder_class->handle_frame = gst_svt_jpeg_xs_enc_handle_frame;
video_encoder_class->propose_allocation =
gst_svt_jpeg_xs_enc_propose_allocation;
// ToDo: allow change at runtime
g_object_class_install_property (gobject_class,
PROP_BITS_PER_PIXEL,
g_param_spec_double ("bits-per-pixel",
"Bits per pixel",
"Bits per pixel (can be a fractional number, e.g. 3.75)",
0.001,
100.00,
DEFAULT_BITS_PER_PIXEL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_DECOMP_H,
g_param_spec_int ("decomp-h",
"Horizontal Decomposition Level",
"Horizontal decomposition (has to be great or equal to decomp-v)",
0, 5, DEFAULT_DECOMP_H, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_DECOMP_V,
g_param_spec_int ("decomp-v",
"Vertical Decomposition Level",
"Vertical decomposition",
0, 2, DEFAULT_DECOMP_V, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_SLICE_HEIGHT,
g_param_spec_int ("slice-height",
"Slice Height",
"The height of each slice in pixel lines (per thread processing unit)",
1,
16,
DEFAULT_SLICE_HEIGHT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_THREADS,
g_param_spec_int ("threads",
"Threads",
"Number of threads to use (0 = automatic)",
0,
G_MAXINT,
DEFAULT_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_QUANT_MODE,
g_param_spec_enum ("quant-mode",
"Quantization Mode",
"Quantization Mode",
GST_SVT_JPEG_XS_ENC_TYPE_QUANT_MODE,
DEFAULT_QUANT_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_RATE_CONTROL_MODE,
g_param_spec_enum ("rate-control-mode",
"Rate Control Mode",
"Rate Control Mode",
GST_SVT_JPEG_XS_ENC_TYPE_RATE_CONTROL_MODE,
DEFAULT_QUANT_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class,
PROP_CODING_SIGNS,
g_param_spec_enum ("coding-signs",
"Coding Signs Handling Strategy",
"Coding signs handling strategy",
GST_SVT_JPEG_XS_ENC_TYPE_CODING_SIGNS,
DEFAULT_QUANT_MODE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_type_mark_as_plugin_api (GST_SVT_JPEG_XS_ENC_TYPE_QUANT_MODE, 0);
gst_type_mark_as_plugin_api (GST_SVT_JPEG_XS_ENC_TYPE_RATE_CONTROL_MODE, 0);
gst_type_mark_as_plugin_api (GST_SVT_JPEG_XS_ENC_TYPE_CODING_SIGNS, 0);
}
static void
gst_svt_jpeg_xs_enc_finalize (GObject * object)
{
// Nothing to do here yet
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_svt_jpeg_xs_enc_init (GstSvtJpegXsEnc * jxsenc)
{
jxsenc->bits_per_pixel = DEFAULT_BITS_PER_PIXEL;
jxsenc->decomp_h = DEFAULT_DECOMP_H;
jxsenc->decomp_v = DEFAULT_DECOMP_V;
jxsenc->slice_height = DEFAULT_SLICE_HEIGHT;
jxsenc->quant_mode = DEFAULT_QUANT_MODE;
jxsenc->rate_control_mode = DEFAULT_RATE_CONTROL_MODE;
jxsenc->coding_signs = DEFAULT_CODING_SIGNS;
jxsenc->threads = DEFAULT_THREADS;
}
static gboolean
gst_svt_jpeg_xs_enc_start (GstVideoEncoder * encoder)
{
svt_jpeg_xs_encoder_api_t dummy_encoder = { 0, };
SvtJxsErrorType_t ret;
// Sanity check to catch problems as early as possible, during state change
ret = svt_jpeg_xs_encoder_load_default_parameters (SVT_JPEGXS_API_VER_MAJOR,
SVT_JPEGXS_API_VER_MINOR, &dummy_encoder);
if (ret == SvtJxsErrorNone)
return TRUE;
GST_ELEMENT_ERROR (encoder,
LIBRARY, INIT,
(NULL),
("encoder_load_default_parameters failed with error 0x%08x", ret));
return FALSE;
}
static gboolean
gst_svt_jpeg_xs_enc_stop (GstVideoEncoder * encoder)
{
GstSvtJpegXsEnc *jxsenc = GST_SVT_JPEG_XS_ENC (encoder);
GST_DEBUG_OBJECT (jxsenc, "Stopping");
if (jxsenc->state) {
gst_video_codec_state_unref (jxsenc->state);
jxsenc->state = NULL;
}
if (jxsenc->jxs_encoder != NULL) {
svt_jpeg_xs_encoder_close (jxsenc->jxs_encoder);
g_free (jxsenc->jxs_encoder);
jxsenc->jxs_encoder = NULL;
}
jxsenc->bytes_per_frame = 0;
return TRUE;
}
static gboolean
gst_svt_jpeg_xs_enc_set_format (GstVideoEncoder * encoder,
GstVideoCodecState * state)
{
GstSvtJpegXsEnc *jxsenc = GST_SVT_JPEG_XS_ENC (encoder);
GST_DEBUG_OBJECT (jxsenc, "New input caps: %" GST_PTR_FORMAT, state->caps);
if (jxsenc->state != NULL) {
// Has the input format changed?
if (gst_video_info_is_equal (&jxsenc->state->info, &state->info))
return TRUE;
// Yes, update encoder instance with new parameters
gst_svt_jpeg_xs_enc_stop (encoder);
gst_svt_jpeg_xs_enc_start (encoder);
}
jxsenc->state = gst_video_codec_state_ref (state);
// Ensure encoder API struct
{
g_assert (jxsenc->jxs_encoder == NULL);
jxsenc->jxs_encoder = g_new0 (svt_jpeg_xs_encoder_api_t, 1);
}
// Init encoder with default parameters
{
SvtJxsErrorType_t ret;
ret = svt_jpeg_xs_encoder_load_default_parameters (SVT_JPEGXS_API_VER_MAJOR,
SVT_JPEGXS_API_VER_MINOR, jxsenc->jxs_encoder);
if (ret != SvtJxsErrorNone) {
GST_ELEMENT_ERROR (encoder,
LIBRARY, INIT,
(NULL),
("encoder load_default_parameters failed with error 0x%08x", ret));
return FALSE;
}
}
svt_jpeg_xs_encoder_api_t *enc = jxsenc->jxs_encoder;
// Fill in encode parameters from properties
{
int num, denom;
GST_OBJECT_LOCK (jxsenc);
gst_util_double_to_fraction (jxsenc->bits_per_pixel, &num, &denom);
enc->bpp_numerator = num;
enc->bpp_denominator = denom;
enc->ndecomp_h = jxsenc->decomp_h;
enc->ndecomp_v = jxsenc->decomp_v;
enc->slice_height = jxsenc->slice_height;
enc->quantization = jxsenc->quant_mode;
enc->threads_num = jxsenc->threads;
enc->rate_control_mode = jxsenc->rate_control_mode;
enc->coding_signs_handling = jxsenc->coding_signs;
GST_OBJECT_UNLOCK (jxsenc);
}
// Hardcoded encode parameters
{
// Codestream packetization mode (i.e. output entire JPEG XS picture segment)
enc->slice_packetization_mode = 0;
// Would be better if there was a callback for the messages from the library.
// Not sure how to prevent the SvtMalloc spam.
GstDebugLevel level = gst_debug_category_get_threshold (svtjpegxsenc_debug);
if (level < GST_LEVEL_WARNING) {
enc->verbose = VERBOSE_ERRORS;
} else if (level == GST_LEVEL_WARNING) {
enc->verbose = VERBOSE_WARNINGS;
} else {
enc->verbose = VERBOSE_SYSTEM_INFO;
}
}
const char *sampling = NULL;
// Fill in video format parameters
{
enc->source_width = GST_VIDEO_INFO_WIDTH (&state->info);
enc->source_height = GST_VIDEO_INFO_HEIGHT (&state->info);
switch (GST_VIDEO_INFO_FORMAT (&state->info)) {
case GST_VIDEO_FORMAT_I420:
enc->input_bit_depth = 8;
enc->colour_format = COLOUR_FORMAT_PLANAR_YUV420;
sampling = "YCbCr-4:2:0";
break;
case GST_VIDEO_FORMAT_Y42B:
enc->input_bit_depth = 8;
enc->colour_format = COLOUR_FORMAT_PLANAR_YUV422;
sampling = "YCbCr-4:2:2";
break;
case GST_VIDEO_FORMAT_Y444:
enc->input_bit_depth = 8;
enc->colour_format = COLOUR_FORMAT_PLANAR_YUV444_OR_RGB;
sampling = "YCbCr-4:4:4";
break;
case GST_VIDEO_FORMAT_I420_10BE:
case GST_VIDEO_FORMAT_I420_10LE:
enc->input_bit_depth = 10;
enc->colour_format = COLOUR_FORMAT_PLANAR_YUV420;
sampling = "YCbCr-4:2:0";
break;
case GST_VIDEO_FORMAT_I422_10BE:
case GST_VIDEO_FORMAT_I422_10LE:
enc->input_bit_depth = 10;
enc->colour_format = COLOUR_FORMAT_PLANAR_YUV422;
sampling = "YCbCr-4:2:2";
break;
case GST_VIDEO_FORMAT_Y444_10BE:
case GST_VIDEO_FORMAT_Y444_10LE:
enc->input_bit_depth = 10;
enc->colour_format = COLOUR_FORMAT_PLANAR_YUV444_OR_RGB;
sampling = "YCbCr-4:4:4";
break;
case GST_VIDEO_FORMAT_I420_12BE:
case GST_VIDEO_FORMAT_I420_12LE:
enc->input_bit_depth = 12;
enc->colour_format = COLOUR_FORMAT_PLANAR_YUV420;
sampling = "YCbCr-4:2:0";
break;
case GST_VIDEO_FORMAT_I422_12BE:
case GST_VIDEO_FORMAT_I422_12LE:
enc->input_bit_depth = 12;
enc->colour_format = COLOUR_FORMAT_PLANAR_YUV422;
sampling = "YCbCr-4:2:2";
break;
case GST_VIDEO_FORMAT_Y444_12BE:
case GST_VIDEO_FORMAT_Y444_12LE:
enc->input_bit_depth = 12;
enc->colour_format = COLOUR_FORMAT_PLANAR_YUV444_OR_RGB;
sampling = "YCbCr-4:4:4";
break;
default:
g_error ("Unexpected input video format %s!",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&state->info)));
return FALSE;
}
}
// Init encoder
{
SvtJxsErrorType_t ret;
// This call takes quite some time (1.8s here)
ret = svt_jpeg_xs_encoder_init (SVT_JPEGXS_API_VER_MAJOR,
SVT_JPEGXS_API_VER_MINOR, enc);
if (ret != SvtJxsErrorNone) {
GST_ELEMENT_ERROR (encoder,
LIBRARY, INIT,
(NULL), ("encoder initialisation failed with error 0x%08x", ret));
return FALSE;
}
}
// Query size of encoded frames
{
SvtJxsErrorType_t ret;
svt_jpeg_xs_image_config_t img_config;
uint32_t bytes_per_frame = 0;
ret = svt_jpeg_xs_encoder_get_image_config (SVT_JPEGXS_API_VER_MAJOR,
SVT_JPEGXS_API_VER_MINOR, enc, &img_config, &bytes_per_frame);
if (ret != SvtJxsErrorNone || bytes_per_frame == 0) {
GST_ELEMENT_ERROR (encoder,
LIBRARY, INIT,
(NULL),
("Couldn't query encoder output image config, error 0x%08x", ret));
return FALSE;
}
GST_DEBUG_OBJECT (jxsenc, "Encoded frame size: %u bytes", bytes_per_frame);
jxsenc->bytes_per_frame = bytes_per_frame;
}
GstCaps *src_caps = gst_static_pad_template_get_caps (&src_pad_template);
src_caps = gst_caps_make_writable (src_caps);
// ToDo: add more things to the caps?
gst_caps_set_simple (src_caps, //
"sampling", G_TYPE_STRING, sampling, //
"depth", G_TYPE_INT, enc->input_bit_depth, //
"codestream-length", G_TYPE_INT, jxsenc->bytes_per_frame, //
NULL);
GstVideoCodecState *output_state =
gst_video_encoder_set_output_state (GST_VIDEO_ENCODER (encoder), src_caps,
jxsenc->state);
if (!gst_video_encoder_negotiate (encoder)) {
gst_video_codec_state_unref (output_state);
return FALSE;
}
GST_INFO_OBJECT (jxsenc, "Output caps: %" GST_PTR_FORMAT, output_state->caps);
gst_video_codec_state_unref (output_state);
return TRUE;
}
static GstFlowReturn
gst_svt_jpeg_xs_enc_handle_frame (GstVideoEncoder * vencoder,
GstVideoCodecFrame * frame)
{
GstSvtJpegXsEnc *jxsenc = GST_SVT_JPEG_XS_ENC (vencoder);
GST_LOG_OBJECT (jxsenc, "Frame to encode");
if (jxsenc->jxs_encoder == NULL || jxsenc->state == NULL) {
GST_ERROR_OBJECT (jxsenc,
"Encoder not initialised yet. No input caps set?");
return GST_FLOW_NOT_NEGOTIATED;
}
// Map input buffer
GstVideoFrame video_frame;
if (!gst_video_frame_map (&video_frame, &jxsenc->state->info,
frame->input_buffer, GST_MAP_READ))
goto map_error;
// Encoder input/output frame struct
svt_jpeg_xs_frame_t encoder_frame;
// Set up encoder input image struct
{
svt_jpeg_xs_image_buffer_t img = { {0,}
};
img.data_yuv[0] = GST_VIDEO_FRAME_PLANE_DATA (&video_frame, 0);
img.data_yuv[1] = GST_VIDEO_FRAME_PLANE_DATA (&video_frame, 1);
img.data_yuv[2] = GST_VIDEO_FRAME_PLANE_DATA (&video_frame, 2);
// Note: wants stride in pixels not in bytes (might need tweaks for 10-bit)
img.stride[0] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 0)
/ GST_VIDEO_FRAME_COMP_PSTRIDE (&video_frame, 0);
img.stride[1] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 1)
/ GST_VIDEO_FRAME_COMP_PSTRIDE (&video_frame, 1);
img.stride[2] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 2)
/ GST_VIDEO_FRAME_COMP_PSTRIDE (&video_frame, 2);
img.alloc_size[0] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 0)
* GST_VIDEO_FRAME_COMP_HEIGHT (&video_frame, 0);
img.alloc_size[1] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 1)
* GST_VIDEO_FRAME_COMP_HEIGHT (&video_frame, 1);
img.alloc_size[2] = GST_VIDEO_FRAME_COMP_STRIDE (&video_frame, 2)
* GST_VIDEO_FRAME_COMP_HEIGHT (&video_frame, 2);
for (int i = 0; i < 3; ++i) {
GST_TRACE_OBJECT (jxsenc, "img stride[%u] = %u, alloc_size[%u]: %u",
i, img.stride[i], i, img.alloc_size[i]);
}
encoder_frame.image = img;
}
GstFlowReturn flow;
// Allocate output buffer
{
// Could use a bufferpool here, since output frames are all the same size.
flow =
gst_video_encoder_allocate_output_frame (vencoder, frame,
jxsenc->bytes_per_frame);
if (flow != GST_FLOW_OK)
goto allocate_output_frame_failure;
}
GstMapInfo outbuf_map = GST_MAP_INFO_INIT;
// Set up encoder output buffer struct
{
svt_jpeg_xs_bitstream_buffer_t out_buf;
if (!gst_buffer_map (frame->output_buffer, &outbuf_map, GST_MAP_WRITE))
goto output_buffer_map_write_failure;
out_buf.buffer = outbuf_map.data;
out_buf.allocation_size = outbuf_map.size;
out_buf.used_size = 0;
encoder_frame.bitstream = out_buf;
}
encoder_frame.user_prv_ctx_ptr = NULL;
SvtJxsErrorType_t enc_ret;
// Encode!
{
enc_ret =
svt_jpeg_xs_encoder_send_picture (jxsenc->jxs_encoder, &encoder_frame,
BLOCKING);
if (enc_ret != SvtJxsErrorNone)
goto send_picture_error;
}
memset (&encoder_frame, 0, sizeof (svt_jpeg_xs_frame_t));
// Wait for encoded frame..
{
enc_ret =
svt_jpeg_xs_encoder_get_packet (jxsenc->jxs_encoder, &encoder_frame,
BLOCKING);
if (enc_ret != SvtJxsErrorNone)
goto get_packet_error;
}
GST_LOG_OBJECT (jxsenc, "Output buffer size: %u, last=%d",
encoder_frame.bitstream.used_size,
encoder_frame.bitstream.last_packet_in_frame);
// Shouldn't happen, but let's play it safe
if (encoder_frame.bitstream.used_size < jxsenc->bytes_per_frame)
gst_buffer_set_size (frame->output_buffer,
encoder_frame.bitstream.used_size);
gst_buffer_unmap (frame->output_buffer, &outbuf_map);
// All frames are key frames
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
// And output!
flow = gst_video_encoder_finish_frame (vencoder, frame);
frame = NULL;
out_unmap:
if (frame != NULL && outbuf_map.memory != NULL)
gst_buffer_unmap (frame->output_buffer, &outbuf_map);
gst_video_frame_unmap (&video_frame);
out:
if (frame != NULL)
gst_video_codec_frame_unref (frame);
return flow;
/* ERRORS */
map_error:
{
GST_ELEMENT_ERROR (jxsenc, LIBRARY, ENCODE, (NULL),
("Couldn't map input frame"));
flow = GST_FLOW_ERROR;
goto out;
}
allocate_output_frame_failure:
{
GST_DEBUG_OBJECT (jxsenc, "Couldn't allocate output frame, flow=%s",
gst_flow_get_name (flow));
goto out_unmap;
}
output_buffer_map_write_failure:
{
GST_ERROR_OBJECT (jxsenc, "Couldn't map output buffer!");
flow = GST_FLOW_ERROR;
goto out_unmap;
}
send_picture_error:
{
GST_ELEMENT_ERROR (jxsenc, LIBRARY, ENCODE, (NULL),
("Error encoding image: 0x%08x", enc_ret));
flow = GST_FLOW_ERROR;
goto out_unmap;
}
get_packet_error:
{
GST_ELEMENT_ERROR (jxsenc, LIBRARY, ENCODE, (NULL),
("Error encoding image (%s): 0x%08x", "get_packet", enc_ret));
flow = GST_FLOW_ERROR;
goto out_unmap;
}
}
static gboolean
gst_svt_jpeg_xs_enc_propose_allocation (GstVideoEncoder * venc,
GstQuery * query)
{
GstSvtJpegXsEnc *jxsenc = GST_SVT_JPEG_XS_ENC (venc);
GST_DEBUG_OBJECT (jxsenc, "propose_allocation");
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
return GST_VIDEO_ENCODER_CLASS (parent_class)->propose_allocation (venc,
query);
}
static void
gst_svt_jpeg_xs_enc_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GstSvtJpegXsEnc *jxsenc = GST_SVT_JPEG_XS_ENC (object);
// ToDo: support reconfiguring on the fly
if (jxsenc->jxs_encoder != NULL) {
GST_ERROR_OBJECT (jxsenc,
"Encoder has been configured already, can't change properties now.");
return;
}
GST_LOG_OBJECT (jxsenc, "Setting property %s", pspec->name);
switch (property_id) {
case PROP_BITS_PER_PIXEL:
GST_OBJECT_LOCK (jxsenc);
jxsenc->bits_per_pixel = g_value_get_double (value);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_DECOMP_H:
GST_OBJECT_LOCK (jxsenc);
jxsenc->decomp_h = g_value_get_int (value);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_DECOMP_V:
GST_OBJECT_LOCK (jxsenc);
jxsenc->decomp_v = g_value_get_int (value);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_SLICE_HEIGHT:
GST_OBJECT_LOCK (jxsenc);
jxsenc->slice_height = g_value_get_int (value);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_THREADS:
GST_OBJECT_LOCK (jxsenc);
jxsenc->threads = g_value_get_int (value);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_QUANT_MODE:
GST_OBJECT_LOCK (jxsenc);
jxsenc->quant_mode = g_value_get_enum (value);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_RATE_CONTROL_MODE:
GST_OBJECT_LOCK (jxsenc);
jxsenc->rate_control_mode = g_value_get_enum (value);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_CODING_SIGNS:
GST_OBJECT_LOCK (jxsenc);
jxsenc->coding_signs = g_value_get_enum (value);
GST_OBJECT_UNLOCK (jxsenc);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gst_svt_jpeg_xs_enc_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GstSvtJpegXsEnc *jxsenc = GST_SVT_JPEG_XS_ENC (object);
GST_LOG_OBJECT (jxsenc, "Getting property %s", pspec->name);
switch (property_id) {
case PROP_BITS_PER_PIXEL:
GST_OBJECT_LOCK (jxsenc);
g_value_set_double (value, jxsenc->bits_per_pixel);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_DECOMP_H:
GST_OBJECT_LOCK (jxsenc);
g_value_set_int (value, jxsenc->decomp_h);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_DECOMP_V:
GST_OBJECT_LOCK (jxsenc);
g_value_set_int (value, jxsenc->decomp_v);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_SLICE_HEIGHT:
GST_OBJECT_LOCK (jxsenc);
g_value_set_int (value, jxsenc->slice_height);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_THREADS:
GST_OBJECT_LOCK (jxsenc);
g_value_set_int (value, jxsenc->threads);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_QUANT_MODE:
GST_OBJECT_LOCK (jxsenc);
g_value_set_enum (value, jxsenc->quant_mode);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_RATE_CONTROL_MODE:
GST_OBJECT_LOCK (jxsenc);
g_value_set_enum (value, jxsenc->rate_control_mode);
GST_OBJECT_UNLOCK (jxsenc);
break;
case PROP_CODING_SIGNS:
GST_OBJECT_LOCK (jxsenc);
g_value_set_enum (value, jxsenc->coding_signs);
GST_OBJECT_UNLOCK (jxsenc);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
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