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gstreamer/subprojects/gst-plugins-bad/sys/va/gstvajpegenc.c

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/* GStreamer
* Copyright (C) 2024 Intel Corporation
* Author: He Junyan <junyan.he@intel.com>
*
* 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.
*/
/**
* SECTION:element-vajpegenc
* @title: vajpegenc
* @short_description: A VA-API based JPEG video encoder
*
* vajpegenc encodes raw video VA surfaces into JPEG bitstreams using
* the installed and chosen [VA-API](https://01.org/linuxmedia/vaapi)
* driver.
*
* The raw video frames in main memory can be imported into VA surfaces.
*
* ## Example launch line
* ```
* gst-launch-1.0 videotestsrc num-buffers=60 ! timeoverlay ! vajpegenc ! jpegparse ! filesink location=test.mjpeg
* ```
*
* Since: 1.26
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstvajpegenc.h"
#include <gst/codecparsers/gstjpegbitwriter.h>
#include <gst/va/gstva.h>
#include <gst/va/gstvavideoformat.h>
#include <gst/video/video.h>
#include <va/va_drmcommon.h>
#include "vacompat.h"
#include "gstvabaseenc.h"
#include "gstvaencoder.h"
#include "gstvacaps.h"
#include "gstvaprofile.h"
#include "gstvadisplay_priv.h"
#include "gstvapluginutils.h"
GST_DEBUG_CATEGORY_STATIC (gst_va_jpegenc_debug);
#define GST_CAT_DEFAULT gst_va_jpegenc_debug
#define GST_VA_JPEG_ENC(obj) ((GstVaJpegEnc *) obj)
#define GST_VA_JPEG_ENC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), G_TYPE_FROM_INSTANCE (obj), GstVaJpegEncClass))
#define GST_VA_JPEG_ENC_CLASS(klass) ((GstVaJpegEncClass *) klass)
typedef struct _GstVaJpegEnc GstVaJpegEnc;
typedef struct _GstVaJpegEncClass GstVaJpegEncClass;
enum
{
PROP_QUALITY = 1,
N_PROPERTIES
};
static GParamSpec *properties[N_PROPERTIES];
static GstElementClass *parent_class = NULL;
/* Maximum sizes for common segment (in bytes) */
#define MAX_APP_HDR_SIZE 20
#define MAX_FRAME_HDR_SIZE 19
#define MAX_QUANT_TABLE_SIZE 138
#define MAX_HUFFMAN_TABLE_SIZE 432
#define MAX_SCAN_HDR_SIZE 14
struct _GstVaJpegEncClass
{
GstVaBaseEncClass parent_class;
};
struct _GstVaJpegEnc
{
/*< private > */
GstVaBaseEnc parent;
/* JPEG fields */
guint32 quality;
guint32 packed_headers;
gint cwidth[GST_VIDEO_MAX_COMPONENTS];
gint cheight[GST_VIDEO_MAX_COMPONENTS];
gint h_samp[GST_VIDEO_MAX_COMPONENTS];
gint v_samp[GST_VIDEO_MAX_COMPONENTS];
gint h_max_samp;
gint v_max_samp;
guint n_components;
GstJpegQuantTables quant_tables;
GstJpegQuantTables scaled_quant_tables;
gboolean has_quant_tables;
GstJpegHuffmanTables huff_tables;
gboolean has_huff_tables;
};
static void
gst_va_jpeg_enc_frame_free (gpointer pframe)
{
GstVaEncFrame *frame = pframe;
g_clear_pointer (&frame->picture, gst_va_encode_picture_free);
g_free (frame);
}
static gboolean
gst_va_jpeg_enc_new_frame (GstVaBaseEnc * base, GstVideoCodecFrame * frame)
{
GstVaEncFrame *frame_in;
frame_in = g_new0 (GstVaEncFrame, 1);
gst_va_set_enc_frame (frame, frame_in, gst_va_jpeg_enc_frame_free);
return TRUE;
}
static inline GstVaEncFrame *
_enc_frame (GstVideoCodecFrame * frame)
{
GstVaEncFrame *enc_frame = gst_video_codec_frame_get_user_data (frame);
g_assert (enc_frame);
return enc_frame;
}
static gboolean
_ensure_profile (GstVaJpegEnc * self)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
if (!gst_va_encoder_has_profile (base->encoder, VAProfileJPEGBaseline)) {
GST_ERROR_OBJECT (self, "No jpeg profile found");
return FALSE;
}
return TRUE;
}
static void
_jpeg_generate_sampling_factors (GstVaJpegEnc * self)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
const GstVideoInfo *vinfo;
gint i;
vinfo = &base->in_info;
self->n_components = GST_VIDEO_INFO_N_COMPONENTS (vinfo);
self->h_max_samp = 0;
self->v_max_samp = 0;
for (i = 0; i < self->n_components; ++i) {
self->cwidth[i] = GST_VIDEO_INFO_COMP_WIDTH (vinfo, i);
self->cheight[i] = GST_VIDEO_INFO_COMP_HEIGHT (vinfo, i);
self->h_samp[i] =
GST_ROUND_UP_4 (GST_VIDEO_INFO_WIDTH (vinfo)) / self->cwidth[i];
self->h_max_samp = MAX (self->h_max_samp, self->h_samp[i]);
self->v_samp[i] =
GST_ROUND_UP_4 (GST_VIDEO_INFO_HEIGHT (vinfo)) / self->cheight[i];
self->v_max_samp = MAX (self->v_max_samp, self->v_samp[i]);
}
/* samp should only be 1, 2 or 4 */
g_assert (self->h_max_samp <= 4);
g_assert (self->v_max_samp <= 4);
/* now invert */
/* maximum is invariant, as one of the components should have samp 1 */
for (i = 0; i < self->n_components; ++i) {
self->h_samp[i] = self->h_max_samp / self->h_samp[i];
self->v_samp[i] = self->v_max_samp / self->v_samp[i];
GST_DEBUG_OBJECT (self, "sampling factors: %d %d", self->h_samp[i],
self->v_samp[i]);
}
}
static void
_jpeg_calculate_coded_size (GstVaJpegEnc * self)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
guint codedbuf_size = 0;
/* Just set a conservative size */
codedbuf_size = GST_ROUND_UP_16 (base->width) *
GST_ROUND_UP_16 (base->height) * 3;
codedbuf_size += MAX_APP_HDR_SIZE + MAX_FRAME_HDR_SIZE +
MAX_QUANT_TABLE_SIZE + MAX_HUFFMAN_TABLE_SIZE + MAX_SCAN_HDR_SIZE;
base->codedbuf_size = codedbuf_size;
GST_DEBUG_OBJECT (self, "Calculate codedbuf size: %u", base->codedbuf_size);
}
static gboolean
_jpeg_init_packed_headers (GstVaJpegEnc * self)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
guint32 packed_headers;
/* JPEG segments info */
guint32 desired_packed_headers = VA_ENC_PACKED_HEADER_RAW_DATA;
self->packed_headers = 0;
if (!gst_va_encoder_get_packed_headers (base->encoder, base->profile,
GST_VA_BASE_ENC_ENTRYPOINT (base), &packed_headers))
return FALSE;
if (desired_packed_headers & ~packed_headers) {
GST_INFO_OBJECT (self, "Driver does not support some wanted packed headers "
"(wanted %#x, found %#x)", desired_packed_headers, packed_headers);
}
self->packed_headers = desired_packed_headers & packed_headers;
return TRUE;
}
static gboolean
_jpeg_get_capability_attribute (GstVaJpegEnc * self)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
VAStatus status;
VAConfigAttrib attrib = {.type = VAConfigAttribEncJPEG };
VAConfigAttribValEncJPEG jpeg_attrib_val;
status = vaGetConfigAttributes (gst_va_display_get_va_dpy (base->display),
base->profile, GST_VA_BASE_ENC_ENTRYPOINT (base), &attrib, 1);
if (status != VA_STATUS_SUCCESS) {
GST_INFO_OBJECT (self, "Failed to query encoding features: %s",
vaErrorStr (status));
/* If no such attribute, we just assume that everything is OK. */
return TRUE;
}
jpeg_attrib_val.value = attrib.value;
GST_DEBUG_OBJECT (self, "Get jpeg attribute, arithmatic_coding_mode: %d, "
"progressive_dct_mode: %d, non_interleaved_mode: %d, "
"differential_mode %d, max_num_components %d, max_num_scans %d, "
"max_num_huffman_tables %d, max_num_quantization_tables %d",
jpeg_attrib_val.bits.arithmatic_coding_mode,
jpeg_attrib_val.bits.progressive_dct_mode,
jpeg_attrib_val.bits.non_interleaved_mode,
jpeg_attrib_val.bits.differential_mode,
jpeg_attrib_val.bits.max_num_components,
jpeg_attrib_val.bits.max_num_scans,
jpeg_attrib_val.bits.max_num_huffman_tables,
jpeg_attrib_val.bits.max_num_quantization_tables);
if (jpeg_attrib_val.bits.arithmatic_coding_mode) {
GST_ERROR_OBJECT (self, "arithmatic_coding_mode is not supported");
return FALSE;
}
if (jpeg_attrib_val.bits.progressive_dct_mode) {
GST_ERROR_OBJECT (self, "progressive_dct_mode is not supported");
return FALSE;
}
/* It seems that we need to do nothing to switch the
non_interleaved_mode/interleaved_mode in our code, so both
modes are OK for us. */
if (jpeg_attrib_val.bits.differential_mode) {
GST_ERROR_OBJECT (self, "differential_mode is not supported");
return FALSE;
}
if (jpeg_attrib_val.bits.max_num_huffman_tables < 1) {
GST_ERROR_OBJECT (self, "need at least 1 huffman table.");
return FALSE;
}
if (jpeg_attrib_val.bits.max_num_quantization_tables < 2) {
GST_ERROR_OBJECT (self, "need at least 2 quantization tables for "
"luma and chroma.");
return FALSE;
}
return TRUE;
}
static gboolean
gst_va_jpeg_enc_reconfig (GstVaBaseEnc * base)
{
GstVaBaseEncClass *klass = GST_VA_BASE_ENC_GET_CLASS (base);
GstVideoEncoder *venc = GST_VIDEO_ENCODER (base);
GstVaJpegEnc *self = GST_VA_JPEG_ENC (base);
GstCaps *out_caps, *reconf_caps = NULL;
GstVideoCodecState *output_state = NULL;
gboolean do_renegotiation = TRUE, do_reopen, need_negotiation;
gint width, height;
GstVideoFormat format, reconf_format = GST_VIDEO_FORMAT_UNKNOWN;
guint rt_format = 0, codedbuf_size, latency_num,
max_surfaces = 0, max_cached_frames;
const char *colorspace, *sampling;
width = GST_VIDEO_INFO_WIDTH (&base->in_info);
height = GST_VIDEO_INFO_HEIGHT (&base->in_info);
format = GST_VIDEO_INFO_FORMAT (&base->in_info);
codedbuf_size = base->codedbuf_size;
latency_num = base->preferred_output_delay;
need_negotiation =
!gst_va_encoder_get_reconstruct_pool_config (base->encoder, &reconf_caps,
&max_surfaces);
if (!need_negotiation && reconf_caps) {
GstVideoInfo vi;
if (!gst_video_info_from_caps (&vi, reconf_caps))
return FALSE;
reconf_format = GST_VIDEO_INFO_FORMAT (&vi);
}
rt_format = gst_va_chroma_from_video_format (format);
if (!rt_format) {
GST_ERROR_OBJECT (self, "unrecognized input format.");
return FALSE;
}
if (!_ensure_profile (self))
return FALSE;
/* first check */
do_reopen = !(base->profile == VAProfileJPEGBaseline
&& base->rt_format == rt_format
&& format == reconf_format && width == base->width
&& height == base->height);
if (do_reopen && gst_va_encoder_is_open (base->encoder))
gst_va_encoder_close (base->encoder);
gst_va_base_enc_reset_state (base);
if (base->is_live) {
base->preferred_output_delay = 0;
} else {
/* FIXME: An experience value for most of the platforms. */
base->preferred_output_delay = 4;
}
base->profile = VAProfileJPEGBaseline;
base->rt_format = rt_format;
base->width = width;
base->height = height;
GST_DEBUG_OBJECT (self, "resolution: %dx%d", base->width, base->height);
_jpeg_generate_sampling_factors (self);
_jpeg_calculate_coded_size (self);
if (!_jpeg_init_packed_headers (self))
return FALSE;
/* Let the downstream know the new latency. */
if (latency_num != base->preferred_output_delay) {
need_negotiation = TRUE;
latency_num = base->preferred_output_delay;
}
/* Unknown frame rate is allowed for jpeg, such as a single still image. */
if (GST_VIDEO_INFO_FPS_N (&base->in_info) == 0
|| GST_VIDEO_INFO_FPS_D (&base->in_info) == 0) {
GST_DEBUG_OBJECT (self, "Unknown framerate");
GST_VIDEO_INFO_FPS_N (&base->in_info) = 0;
GST_VIDEO_INFO_FPS_D (&base->in_info) = 1;
base->frame_duration = GST_CLOCK_TIME_NONE;
} else {
GstClockTime latency;
base->frame_duration = gst_util_uint64_scale (GST_SECOND,
GST_VIDEO_INFO_FPS_D (&base->in_info),
GST_VIDEO_INFO_FPS_N (&base->in_info));
GST_DEBUG_OBJECT (self, "frame duration is %" GST_TIME_FORMAT,
GST_TIME_ARGS (base->frame_duration));
/* Set the latency */
latency = gst_util_uint64_scale (latency_num,
GST_VIDEO_INFO_FPS_D (&base->input_state->info) * GST_SECOND,
GST_VIDEO_INFO_FPS_N (&base->input_state->info));
gst_video_encoder_set_latency (venc, latency, latency);
}
max_cached_frames = base->preferred_output_delay;
base->min_buffers = max_cached_frames;
max_cached_frames += 3 /* scratch frames */ ;
/* second check after calculations */
do_reopen |= !(max_cached_frames == max_surfaces &&
codedbuf_size == base->codedbuf_size);
if (do_reopen && gst_va_encoder_is_open (base->encoder))
gst_va_encoder_close (base->encoder);
/* Just use driver's capability attribute, we do not change them. */
if (!_jpeg_get_capability_attribute (self)) {
GST_ERROR_OBJECT (self, "Failed to satisfy the jpeg capability.");
return FALSE;
}
if (!gst_va_encoder_is_open (base->encoder)
&& !gst_va_encoder_open (base->encoder, base->profile, format,
base->rt_format, base->width, base->height, base->codedbuf_size,
1, VA_RC_NONE, self->packed_headers)) {
GST_ERROR_OBJECT (self, "Failed to open the VA encoder.");
return FALSE;
}
/* Add some tags */
gst_va_base_enc_add_codec_tag (base, "JPEG");
out_caps = gst_va_profile_caps (base->profile, klass->entrypoint);
g_assert (out_caps);
GST_WARNING ("caps: %" GST_PTR_FORMAT, out_caps);
out_caps = gst_caps_fixate (out_caps);
if (GST_VIDEO_INFO_IS_YUV (&base->in_info)) {
gint w_sub, h_sub;
colorspace = "sYUV";
w_sub = 1 << GST_VIDEO_FORMAT_INFO_W_SUB (base->in_info.finfo, 1);
h_sub = 1 << GST_VIDEO_FORMAT_INFO_H_SUB (base->in_info.finfo, 1);
if (w_sub == 1 && h_sub == 1) {
sampling = "YCbCr-4:4:4";
} else if (w_sub == 2 && h_sub == 1) {
sampling = "YCbCr-4:2:2";
} else if (w_sub == 2 && h_sub == 2) {
sampling = "YCbCr-4:2:0";
} else {
sampling = NULL;
}
} else if (GST_VIDEO_INFO_IS_RGB (&base->in_info)) {
colorspace = "sRGB";
switch (GST_VIDEO_INFO_FORMAT (&base->in_info)) {
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_BGRx:
sampling = "BGR";
break;
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_RGB:
sampling = "RGB";
break;
default:
sampling = NULL;
}
} else if (GST_VIDEO_INFO_IS_GRAY (&base->in_info)) {
colorspace = "GRAY";
sampling = "GRAYSCALE";
} else {
colorspace = sampling = NULL;
}
gst_caps_set_simple (out_caps, "width", G_TYPE_INT, base->width,
"height", G_TYPE_INT, base->height, "interlace-mode", G_TYPE_STRING,
"progressive", NULL);
if (colorspace) {
gst_caps_set_simple (out_caps, "colorspace", G_TYPE_STRING, colorspace,
NULL);
}
if (sampling)
gst_caps_set_simple (out_caps, "sampling", G_TYPE_STRING, sampling, NULL);
if (!need_negotiation) {
output_state = gst_video_encoder_get_output_state (venc);
do_renegotiation = TRUE;
if (output_state) {
do_renegotiation = !gst_caps_is_subset (output_state->caps, out_caps);
gst_video_codec_state_unref (output_state);
}
if (!do_renegotiation) {
gst_caps_unref (out_caps);
return TRUE;
}
}
GST_DEBUG_OBJECT (self, "output caps is %" GST_PTR_FORMAT, out_caps);
output_state =
gst_video_encoder_set_output_state (venc, out_caps, base->input_state);
gst_video_codec_state_unref (output_state);
if (!gst_video_encoder_negotiate (venc)) {
GST_ERROR_OBJECT (self, "Failed to negotiate with the downstream");
return FALSE;
}
return TRUE;
}
static gboolean
gst_va_jpeg_enc_reorder_frame (GstVaBaseEnc * base, GstVideoCodecFrame * frame,
gboolean bump_all, GstVideoCodecFrame ** out_frame)
{
*out_frame = frame;
return TRUE;
}
static void
gst_va_jpeg_enc_reset_state (GstVaBaseEnc * base)
{
GstVaJpegEnc *self = GST_VA_JPEG_ENC (base);
GST_VA_BASE_ENC_CLASS (parent_class)->reset_state (base);
self->packed_headers = 0;
memset (self->cwidth, 0, sizeof (self->cwidth));
memset (self->cheight, 0, sizeof (self->cheight));
memset (self->h_samp, 0, sizeof (self->h_samp));
memset (self->v_samp, 0, sizeof (self->v_samp));
self->h_max_samp = 0;
self->v_max_samp = 0;
self->n_components = 0;
memset (&self->quant_tables, 0, sizeof (GstJpegQuantTables));
memset (&self->scaled_quant_tables, 0, sizeof (GstJpegQuantTables));
self->has_quant_tables = FALSE;
memset (&self->huff_tables, 0, sizeof (GstJpegHuffmanTables));
self->has_huff_tables = FALSE;
}
static void
_jpeg_fill_picture (GstVaJpegEnc * self, GstVaEncFrame * frame,
VAEncPictureParameterBufferJPEG * pic_param, guint32 quality)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
guint i;
/* *INDENT-OFF* */
*pic_param = (VAEncPictureParameterBufferJPEG) {
.reconstructed_picture =
gst_va_encode_picture_get_reconstruct_surface (frame->picture),
.picture_width = base->width,
.picture_height = base->height,
.coded_buf = frame->picture->coded_buffer,
/* Profile = Baseline */
.pic_flags.bits.profile = 0,
/* Sequential encoding */
.pic_flags.bits.progressive = 0,
/* Uses Huffman coding */
.pic_flags.bits.huffman = 1,
/* Input format is non interleaved (YUV) */
.pic_flags.bits.interleaved = 0,
/* non-Differential Encoding */
.pic_flags.bits.differential = 0,
.sample_bit_depth = 8,
.num_scan = 1,
.num_components = self->n_components,
.quality = quality,
};
/* *INDENT-ON* */
for (i = 0; i < pic_param->num_components; i++) {
pic_param->component_id[i] = i + 1;
if (i != 0)
pic_param->quantiser_table_selector[i] = 1;
}
}
static gboolean
_jpeg_add_picture_parameter (GstVaJpegEnc * self, GstVaEncFrame * frame,
VAEncPictureParameterBufferJPEG * pic_param)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
if (!gst_va_encoder_add_param (base->encoder, frame->picture,
VAEncPictureParameterBufferType, pic_param,
sizeof (VAEncPictureParameterBufferJPEG))) {
GST_ERROR_OBJECT (self, "Failed to create the picture parameter");
return FALSE;
}
return TRUE;
}
/* Normalize the quality factor and scale QM values. */
static void
_jpeg_generate_scaled_qm (GstJpegQuantTables * quant_tables,
GstJpegQuantTables * scaled_quant_tables, guint quality, guint shift)
{
guint qt_val, nm_quality, i;
nm_quality = quality == 0 ? 1 : quality;
nm_quality =
(nm_quality < 50) ? (5000 / nm_quality) : (200 - (nm_quality * 2));
g_assert (quant_tables != NULL);
g_assert (scaled_quant_tables != NULL);
scaled_quant_tables->quant_tables[0].quant_precision =
quant_tables->quant_tables[0].quant_precision;
scaled_quant_tables->quant_tables[0].valid =
quant_tables->quant_tables[0].valid;
scaled_quant_tables->quant_tables[1].quant_precision =
quant_tables->quant_tables[1].quant_precision;
scaled_quant_tables->quant_tables[1].valid =
quant_tables->quant_tables[1].valid;
for (i = 0; i < GST_JPEG_MAX_QUANT_ELEMENTS; i++) {
/* Luma QM */
qt_val =
(quant_tables->quant_tables[0].quant_table[i] * nm_quality +
shift) / 100;
scaled_quant_tables->quant_tables[0].quant_table[i] =
CLAMP (qt_val, 1, 255);
/* Chroma QM */
qt_val =
(quant_tables->quant_tables[1].quant_table[i] * nm_quality +
shift) / 100;
scaled_quant_tables->quant_tables[1].quant_table[i] =
CLAMP (qt_val, 1, 255);
}
}
static void
_jpeg_fill_quantization_table (GstVaJpegEnc * self,
VAQMatrixBufferJPEG * q_matrix, guint32 quality)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
guint i;
if (!self->has_quant_tables) {
guint shift = 0;
if (gst_va_display_is_implementation (base->display,
GST_VA_IMPLEMENTATION_INTEL_IHD))
shift = 50;
gst_jpeg_get_default_quantization_tables (&self->quant_tables);
/* Just use table 0 and 1 */
self->quant_tables.quant_tables[2].valid = FALSE;
self->quant_tables.quant_tables[3].valid = FALSE;
_jpeg_generate_scaled_qm (&self->quant_tables,
&self->scaled_quant_tables, quality, shift);
self->has_quant_tables = TRUE;
}
q_matrix->load_lum_quantiser_matrix = 1;
for (i = 0; i < GST_JPEG_MAX_QUANT_ELEMENTS; i++) {
q_matrix->lum_quantiser_matrix[i] =
self->quant_tables.quant_tables[0].quant_table[i];
}
q_matrix->load_chroma_quantiser_matrix = 1;
for (i = 0; i < GST_JPEG_MAX_QUANT_ELEMENTS; i++) {
q_matrix->chroma_quantiser_matrix[i] =
self->quant_tables.quant_tables[1].quant_table[i];
}
}
static gboolean
_jpeg_add_quantization_table (GstVaJpegEnc * self, GstVaEncFrame * frame,
VAQMatrixBufferJPEG * q_matrix)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
if (!gst_va_encoder_add_param (base->encoder, frame->picture,
VAQMatrixBufferType, q_matrix, sizeof (VAQMatrixBufferJPEG))) {
GST_ERROR_OBJECT (self, "Failed to create the quantization table");
return FALSE;
}
return TRUE;
}
static void
_jpeg_fill_huffman_table (GstVaJpegEnc * self,
VAHuffmanTableBufferJPEGBaseline * huffman_table)
{
guint i, num_tables;
num_tables = MIN (G_N_ELEMENTS (huffman_table->huffman_table),
GST_JPEG_MAX_SCAN_COMPONENTS);
if (!self->has_huff_tables) {
gst_jpeg_get_default_huffman_tables (&self->huff_tables);
self->has_huff_tables = TRUE;
}
for (i = 0; i < num_tables; i++) {
huffman_table->load_huffman_table[i] =
self->huff_tables.dc_tables[i].valid
&& self->huff_tables.ac_tables[i].valid;
if (!huffman_table->load_huffman_table[i])
continue;
memcpy (huffman_table->huffman_table[i].num_dc_codes,
self->huff_tables.dc_tables[i].huf_bits,
sizeof (huffman_table->huffman_table[i].num_dc_codes));
memcpy (huffman_table->huffman_table[i].dc_values,
self->huff_tables.dc_tables[i].huf_values,
sizeof (huffman_table->huffman_table[i].dc_values));
memcpy (huffman_table->huffman_table[i].num_ac_codes,
self->huff_tables.ac_tables[i].huf_bits,
sizeof (huffman_table->huffman_table[i].num_ac_codes));
memcpy (huffman_table->huffman_table[i].ac_values,
self->huff_tables.ac_tables[i].huf_values,
sizeof (huffman_table->huffman_table[i].ac_values));
memset (huffman_table->huffman_table[i].pad,
0, sizeof (huffman_table->huffman_table[i].pad));
}
}
static gboolean
_jpeg_add_huffman_table (GstVaJpegEnc * self, GstVaEncFrame * frame,
VAHuffmanTableBufferJPEGBaseline * huffman_table)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
if (!gst_va_encoder_add_param (base->encoder, frame->picture,
VAHuffmanTableBufferType, huffman_table,
sizeof (VAHuffmanTableBufferJPEGBaseline))) {
GST_ERROR_OBJECT (self, "Failed to create the huffman table");
return FALSE;
}
return TRUE;
}
static void
_jpeg_fill_slice (GstVaJpegEnc * self,
VAEncPictureParameterBufferJPEG * pic_param,
VAEncSliceParameterBufferJPEG * slice_param)
{
/* *INDENT-OFF* */
*slice_param = (VAEncSliceParameterBufferJPEG) {
.restart_interval = 0,
.num_components = pic_param->num_components,
.components[0].component_selector = 1,
.components[0].dc_table_selector = 0,
.components[0].ac_table_selector = 0,
.components[1].component_selector = 2,
.components[1].dc_table_selector = 1,
.components[1].ac_table_selector = 1,
.components[2].component_selector = 3,
.components[2].dc_table_selector = 1,
.components[2].ac_table_selector = 1,
};
/* *INDENT-ON* */
}
static gboolean
_jpeg_add_slice_parameter (GstVaJpegEnc * self, GstVaEncFrame * frame,
VAEncSliceParameterBufferJPEG * slice_param)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
if (!gst_va_encoder_add_param (base->encoder, frame->picture,
VAEncSliceParameterBufferType, slice_param,
sizeof (VAEncSliceParameterBufferJPEG))) {
GST_ERROR_OBJECT (self, "Failed to create the slice parameter");
return FALSE;
}
return TRUE;
}
static gboolean
_jpeg_create_and_add_packed_segments (GstVaJpegEnc * self,
GstVaEncFrame * frame, VAEncPictureParameterBufferJPEG * pic_param,
VAEncSliceParameterBufferJPEG * slice_param)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
GstJpegBitWriterResult writer_res;
guint8 data[2048] = { 0, };
guint8 app_data[14] = {
0x4A /* J */ ,
0x46 /* F */ ,
0x49 /* I */ ,
0x46 /* F */ ,
0x00 /* 0 */ ,
0x01 /* Major Version */ ,
0x02 /* Minor Version */ ,
0x00 /* Density units 0:no units, 1:pixels per inch, 2: pixels per cm */ ,
0x00, 0x01 /* X density (pixel-aspect-ratio) */ ,
0x00, 0x01 /* Y density (pixel-aspect-ratio) */ ,
0x00 /* Thumbnail width */ ,
0x00 /* Thumbnail height */ ,
};
GstJpegFrameHdr frame_hdr;
GstJpegScanHdr scan_hdr = { 0, };
guint i;
guint size, offset;
/* SOI */
offset = 0;
size = sizeof (data);
writer_res = gst_jpeg_bit_writer_segment_with_data (GST_JPEG_MARKER_SOI,
NULL, 0, data, &size);
if (writer_res != GST_JPEG_BIT_WRITER_OK)
return FALSE;
/* APP0 */
offset += size;
size = sizeof (data) - offset;
writer_res = gst_jpeg_bit_writer_segment_with_data (GST_JPEG_MARKER_APP_MIN,
app_data, sizeof (app_data), data + offset, &size);
if (writer_res != GST_JPEG_BIT_WRITER_OK)
return FALSE;
/* Quantization tables */
g_assert (self->has_quant_tables);
offset += size;
size = sizeof (data) - offset;
writer_res =
gst_jpeg_bit_writer_quantization_table (&self->scaled_quant_tables,
data + offset, &size);
if (writer_res != GST_JPEG_BIT_WRITER_OK)
return FALSE;
/* SOF */
/* *INDENT-OFF* */
frame_hdr = (GstJpegFrameHdr) {
.sample_precision = 8,
.width = pic_param->picture_width,
.height = pic_param->picture_height,
.num_components = pic_param->num_components,
};
/* *INDENT-ON* */
for (i = 0; i < frame_hdr.num_components; i++) {
frame_hdr.components[i].identifier = pic_param->component_id[i];
frame_hdr.components[i].horizontal_factor = self->h_samp[i];
frame_hdr.components[i].vertical_factor = self->v_samp[i];
frame_hdr.components[i].quant_table_selector =
pic_param->quantiser_table_selector[i];
};
offset += size;
size = sizeof (data) - offset;
writer_res = gst_jpeg_bit_writer_frame_header (&frame_hdr,
GST_JPEG_MARKER_SOF_MIN, data + offset, &size);
if (writer_res != GST_JPEG_BIT_WRITER_OK)
return FALSE;
/* huffman tables */
g_assert (self->has_huff_tables);
offset += size;
size = sizeof (data) - offset;
writer_res = gst_jpeg_bit_writer_huffman_table (&self->huff_tables,
data + offset, &size);
if (writer_res != GST_JPEG_BIT_WRITER_OK)
return FALSE;
/* Scan header */
scan_hdr.num_components = slice_param->num_components;
for (i = 0; i < frame_hdr.num_components; i++) {
scan_hdr.components[i].component_selector =
slice_param->components[i].component_selector;
scan_hdr.components[i].dc_selector =
slice_param->components[i].dc_table_selector;
scan_hdr.components[i].ac_selector =
slice_param->components[i].ac_table_selector;
}
offset += size;
size = sizeof (data) - offset;
writer_res = gst_jpeg_bit_writer_scan_header (&scan_hdr,
data + offset, &size);
if (writer_res != GST_JPEG_BIT_WRITER_OK)
return FALSE;
offset += size;
if (!gst_va_encoder_add_packed_header (base->encoder, frame->picture,
VAEncPackedHeaderRawData, data, offset * 8, FALSE)) {
GST_ERROR_OBJECT (self, "Failed to add packed segment data");
return FALSE;
}
return TRUE;
}
static gboolean
_jpeg_encode_one_frame (GstVaJpegEnc * self, GstVideoCodecFrame * gst_frame)
{
GstVaBaseEnc *base = GST_VA_BASE_ENC (self);
GstVaEncFrame *frame;
VAEncPictureParameterBufferJPEG pic_param;
VAQMatrixBufferJPEG q_matrix;
VAHuffmanTableBufferJPEGBaseline huffman_table;
VAEncSliceParameterBufferJPEG slice_param;
guint32 quality;
g_return_val_if_fail (gst_frame, FALSE);
frame = _enc_frame (gst_frame);
GST_OBJECT_LOCK (self);
quality = self->quality;
GST_OBJECT_UNLOCK (self);
_jpeg_fill_quantization_table (self, &q_matrix, quality);
if (!_jpeg_add_quantization_table (self, frame, &q_matrix))
return FALSE;
_jpeg_fill_huffman_table (self, &huffman_table);
if (!_jpeg_add_huffman_table (self, frame, &huffman_table))
return FALSE;
_jpeg_fill_picture (self, frame, &pic_param, quality);
if (!_jpeg_add_picture_parameter (self, frame, &pic_param))
return FALSE;
_jpeg_fill_slice (self, &pic_param, &slice_param);
if (!_jpeg_add_slice_parameter (self, frame, &slice_param))
return FALSE;
if (!_jpeg_create_and_add_packed_segments (self, frame, &pic_param,
&slice_param)) {
GST_ERROR_OBJECT (self, "Failed to create packed segments");
return FALSE;
}
if (!gst_va_encoder_encode (base->encoder, frame->picture)) {
GST_ERROR_OBJECT (self, "Encode frame error");
return FALSE;
}
return TRUE;
}
static GstFlowReturn
gst_va_jpeg_enc_encode_frame (GstVaBaseEnc * base,
GstVideoCodecFrame * gst_frame, gboolean is_last)
{
GstVaJpegEnc *self = GST_VA_JPEG_ENC (base);
GstVaEncFrame *frame;
frame = _enc_frame (gst_frame);
g_assert (frame->picture == NULL);
frame->picture = gst_va_encode_picture_new (base->encoder,
gst_frame->input_buffer);
if (!frame->picture) {
GST_ERROR_OBJECT (self, "Failed to create the encode picture");
return GST_FLOW_ERROR;
}
if (!_jpeg_encode_one_frame (self, gst_frame)) {
GST_ERROR_OBJECT (self, "Failed to encode the frame");
return GST_FLOW_ERROR;
}
g_queue_push_tail (&base->output_list, gst_video_codec_frame_ref (gst_frame));
return GST_FLOW_OK;
}
static gboolean
gst_va_jpeg_enc_prepare_output (GstVaBaseEnc * base,
GstVideoCodecFrame * frame, gboolean * complete)
{
GstVaEncFrame *frame_enc;
GstBuffer *buf;
frame_enc = _enc_frame (frame);
buf = gst_va_base_enc_create_output_buffer (base,
frame_enc->picture, NULL, 0);
if (!buf) {
GST_ERROR_OBJECT (base, "Failed to create output buffer");
return FALSE;
}
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_MARKER);
GST_VIDEO_CODEC_FRAME_SET_SYNC_POINT (frame);
GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
gst_buffer_replace (&frame->output_buffer, buf);
gst_clear_buffer (&buf);
*complete = TRUE;
return TRUE;
}
/* *INDENT-OFF* */
static const gchar *sink_caps_str =
GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_VA,
"{ NV12 }") " ;"
GST_VIDEO_CAPS_MAKE ("{ NV12 }");
/* *INDENT-ON* */
static const gchar *src_caps_str = "image/jpeg";
static gpointer
_register_debug_category (gpointer data)
{
GST_DEBUG_CATEGORY_INIT (gst_va_jpegenc_debug, "vajpegenc", 0,
"VA jpeg encoder");
return NULL;
}
static void
gst_va_jpeg_enc_init (GTypeInstance * instance, gpointer g_class)
{
GstVaJpegEnc *self = GST_VA_JPEG_ENC (instance);
self->quality = 50;
}
static void
gst_va_jpeg_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVaJpegEnc *self = GST_VA_JPEG_ENC (object);
GST_OBJECT_LOCK (self);
switch (prop_id) {
case PROP_QUALITY:
self->quality = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
GST_OBJECT_UNLOCK (self);
}
static void
gst_va_jpeg_enc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstVaJpegEnc *const self = GST_VA_JPEG_ENC (object);
GST_OBJECT_LOCK (self);
switch (prop_id) {
case PROP_QUALITY:
g_value_set_uint (value, self->quality);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
GST_OBJECT_UNLOCK (self);
}
static void
gst_va_jpeg_enc_class_init (gpointer g_klass, gpointer class_data)
{
GstCaps *src_doc_caps, *sink_doc_caps;
GstPadTemplate *sink_pad_templ, *src_pad_templ;
GObjectClass *object_class = G_OBJECT_CLASS (g_klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (g_klass);
GstVaBaseEncClass *va_enc_class = GST_VA_BASE_ENC_CLASS (g_klass);
struct CData *cdata = class_data;
gchar *long_name;
const gchar *name, *desc;
gint n_props = N_PROPERTIES;
desc = "VA-API based JPEG video encoder";
name = "VA-API JPEG Encoder";
if (cdata->description)
long_name = g_strdup_printf ("%s in %s", name, cdata->description);
else
long_name = g_strdup (name);
gst_element_class_set_metadata (element_class, long_name,
"Codec/Encoder/Video/Hardware", desc, "He Junyan <junyan.he@intel.com>");
sink_doc_caps = gst_caps_from_string (sink_caps_str);
src_doc_caps = gst_caps_from_string (src_caps_str);
parent_class = g_type_class_peek_parent (g_klass);
va_enc_class->codec = JPEG;
va_enc_class->entrypoint = cdata->entrypoint;
va_enc_class->render_device_path = g_strdup (cdata->render_device_path);
sink_pad_templ = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
cdata->sink_caps);
gst_element_class_add_pad_template (element_class, sink_pad_templ);
gst_pad_template_set_documentation_caps (sink_pad_templ, sink_doc_caps);
gst_caps_unref (sink_doc_caps);
src_pad_templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
cdata->src_caps);
gst_element_class_add_pad_template (element_class, src_pad_templ);
gst_pad_template_set_documentation_caps (src_pad_templ, src_doc_caps);
gst_caps_unref (src_doc_caps);
object_class->set_property = gst_va_jpeg_enc_set_property;
object_class->get_property = gst_va_jpeg_enc_get_property;
va_enc_class->reconfig = GST_DEBUG_FUNCPTR (gst_va_jpeg_enc_reconfig);
va_enc_class->reset_state = GST_DEBUG_FUNCPTR (gst_va_jpeg_enc_reset_state);
va_enc_class->reorder_frame =
GST_DEBUG_FUNCPTR (gst_va_jpeg_enc_reorder_frame);
va_enc_class->new_frame = GST_DEBUG_FUNCPTR (gst_va_jpeg_enc_new_frame);
va_enc_class->encode_frame = GST_DEBUG_FUNCPTR (gst_va_jpeg_enc_encode_frame);
va_enc_class->prepare_output =
GST_DEBUG_FUNCPTR (gst_va_jpeg_enc_prepare_output);
g_free (long_name);
g_free (cdata->description);
g_free (cdata->render_device_path);
gst_caps_unref (cdata->src_caps);
gst_caps_unref (cdata->sink_caps);
g_free (cdata);
/**
* GstVaJpegEnc:quality:
*
* Quality factor.
*/
properties[PROP_QUALITY] = g_param_spec_uint ("quality",
"Quality factor", "Quality factor for encoding", 0, 100, 50,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT);
g_object_class_install_properties (object_class, n_props, properties);
}
static gboolean
_is_supported_format (GstVideoFormat gst_format)
{
guint chroma;
/* Only support depth == 8 */
chroma = gst_va_chroma_from_video_format (gst_format);
if (chroma >= VA_RT_FORMAT_YUV420 && chroma <= VA_RT_FORMAT_YUV400)
return TRUE;
/* And the special RGB case */
if (chroma == VA_RT_FORMAT_RGB32)
return TRUE;
return FALSE;
}
static void
_generate_supported_formats (GPtrArray * supported_formats,
GValue * supported_value)
{
guint i;
if (supported_formats->len == 1) {
g_value_init (supported_value, G_TYPE_STRING);
g_value_set_string (supported_value,
g_ptr_array_index (supported_formats, 0));
} else {
GValue item = G_VALUE_INIT;
gst_value_list_init (supported_value, supported_formats->len);
for (i = 0; i < supported_formats->len; i++) {
g_value_init (&item, G_TYPE_STRING);
g_value_set_string (&item, g_ptr_array_index (supported_formats, i));
gst_value_list_append_value (supported_value, &item);
g_value_unset (&item);
}
}
}
static GstCaps *
_filter_sink_caps (GstCaps * sinkcaps)
{
GPtrArray *supported_formats;
const gchar *format_str;
GstVideoFormat gst_format;
const GValue *val;
GValue supported_value = G_VALUE_INIT;
GstCaps *ret;
guint num_structures;
guint i, j;
supported_formats = g_ptr_array_new ();
ret = gst_caps_new_empty ();
num_structures = gst_caps_get_size (sinkcaps);
for (i = 0; i < num_structures; i++) {
GstStructure *st;
GstCapsFeatures *features;
g_ptr_array_set_size (supported_formats, 0);
st = gst_caps_get_structure (sinkcaps, i);
st = gst_structure_copy (st);
features = gst_caps_get_features (sinkcaps, i);
if (gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_DMABUF)) {
guint32 fourcc;
val = gst_structure_get_value (st, "drm-format");
if (!val) {
gst_structure_free (st);
continue;
}
if (G_VALUE_HOLDS_STRING (val)) {
format_str = g_value_get_string (val);
fourcc = gst_video_dma_drm_fourcc_from_string (format_str, NULL);
gst_format = gst_va_video_format_from_drm_fourcc (fourcc);
if (_is_supported_format (gst_format))
g_ptr_array_add (supported_formats, (gpointer) format_str);
} else if (GST_VALUE_HOLDS_LIST (val)) {
guint num_values = gst_value_list_get_size (val);
for (j = 0; j < num_values; j++) {
const GValue *v = gst_value_list_get_value (val, j);
format_str = g_value_get_string (v);
fourcc = gst_video_dma_drm_fourcc_from_string (format_str, NULL);
gst_format = gst_va_video_format_from_drm_fourcc (fourcc);
if (_is_supported_format (gst_format))
g_ptr_array_add (supported_formats, (gpointer) format_str);
}
}
if (!supported_formats->len) {
gst_structure_free (st);
continue;
}
_generate_supported_formats (supported_formats, &supported_value);
gst_structure_take_value (st, "drm-format", &supported_value);
gst_caps_append_structure_full (ret, st,
gst_caps_features_copy (features));
} else {
val = gst_structure_get_value (st, "format");
if (!val) {
gst_structure_free (st);
continue;
}
if (G_VALUE_HOLDS_STRING (val)) {
format_str = g_value_get_string (val);
gst_format = gst_video_format_from_string (format_str);
if (_is_supported_format (gst_format))
g_ptr_array_add (supported_formats, (gpointer) format_str);
} else if (GST_VALUE_HOLDS_LIST (val)) {
guint num_values = gst_value_list_get_size (val);
for (j = 0; j < num_values; j++) {
const GValue *v = gst_value_list_get_value (val, j);
format_str = g_value_get_string (v);
gst_format = gst_video_format_from_string (format_str);
if (_is_supported_format (gst_format))
g_ptr_array_add (supported_formats, (gpointer) format_str);
}
}
if (!supported_formats->len) {
gst_structure_free (st);
continue;
}
_generate_supported_formats (supported_formats, &supported_value);
gst_structure_take_value (st, "format", &supported_value);
gst_caps_append_structure_full (ret, st,
gst_caps_features_copy (features));
}
}
g_ptr_array_unref (supported_formats);
if (gst_caps_is_empty (ret)) {
gst_caps_unref (ret);
ret = NULL;
}
return ret;
}
gboolean
gst_va_jpeg_enc_register (GstPlugin * plugin, GstVaDevice * device,
GstCaps * sink_caps, GstCaps * src_caps, guint rank,
VAEntrypoint entrypoint)
{
static GOnce debug_once = G_ONCE_INIT;
GType type;
GTypeInfo type_info = {
.class_size = sizeof (GstVaJpegEncClass),
.class_init = gst_va_jpeg_enc_class_init,
.instance_size = sizeof (GstVaJpegEnc),
.instance_init = gst_va_jpeg_enc_init,
};
struct CData *cdata;
gboolean ret;
gchar *type_name, *feature_name;
g_return_val_if_fail (GST_IS_PLUGIN (plugin), FALSE);
g_return_val_if_fail (GST_IS_VA_DEVICE (device), FALSE);
g_return_val_if_fail (GST_IS_CAPS (sink_caps), FALSE);
g_return_val_if_fail (GST_IS_CAPS (src_caps), FALSE);
g_return_val_if_fail (entrypoint == VAEntrypointEncPicture, FALSE);
sink_caps = _filter_sink_caps (sink_caps);
cdata = g_new (struct CData, 1);
cdata->entrypoint = entrypoint;
cdata->description = NULL;
cdata->render_device_path = g_strdup (device->render_device_path);
cdata->sink_caps = sink_caps;
cdata->src_caps = gst_caps_ref (src_caps);
/* class data will be leaked if the element never gets instantiated */
GST_MINI_OBJECT_FLAG_SET (cdata->sink_caps,
GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
GST_MINI_OBJECT_FLAG_SET (cdata->src_caps,
GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
type_info.class_data = cdata;
gst_va_create_feature_name (device, "GstVaJpegEnc", "GstVa%sJpegEnc",
&type_name, "vajpegenc", "va%sjpegenc", &feature_name,
&cdata->description, &rank);
g_once (&debug_once, _register_debug_category, NULL);
type = g_type_register_static (GST_TYPE_VA_BASE_ENC,
type_name, &type_info, 0);
ret = gst_element_register (plugin, feature_name, rank, type);
g_free (type_name);
g_free (feature_name);
return ret;
}
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