mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
62f40d0e38
Also fixes a memory leak where the side data was previously not properly cleaned up on OOM. Signed-off-by: Anton Khirnov <anton@khirnov.net>
552 lines
22 KiB
C
552 lines
22 KiB
C
/*
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* JPEG XL decoding support via libjxl
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* Copyright (c) 2021 Leo Izen <leo.izen@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* JPEG XL decoder using libjxl
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*/
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#include "libavutil/avassert.h"
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#include "libavutil/buffer.h"
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#include "libavutil/common.h"
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#include "libavutil/csp.h"
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#include "libavutil/error.h"
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#include "libavutil/mem.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/pixfmt.h"
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#include "libavutil/frame.h"
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#include "avcodec.h"
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#include "codec_internal.h"
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#include "decode.h"
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#include "internal.h"
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#include <jxl/decode.h>
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#include <jxl/thread_parallel_runner.h>
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#include "libjxl.h"
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typedef struct LibJxlDecodeContext {
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void *runner;
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JxlDecoder *decoder;
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JxlBasicInfo basic_info;
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JxlPixelFormat jxl_pixfmt;
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#if JPEGXL_NUMERIC_VERSION >= JPEGXL_COMPUTE_NUMERIC_VERSION(0, 8, 0)
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JxlBitDepth jxl_bit_depth;
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#endif
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JxlDecoderStatus events;
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AVBufferRef *iccp;
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AVPacket *avpkt;
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int64_t accumulated_pts;
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int64_t frame_duration;
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int prev_is_last;
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AVRational anim_timebase;
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AVFrame *frame;
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} LibJxlDecodeContext;
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static int libjxl_init_jxl_decoder(AVCodecContext *avctx)
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{
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LibJxlDecodeContext *ctx = avctx->priv_data;
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ctx->events = JXL_DEC_BASIC_INFO | JXL_DEC_FULL_IMAGE
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| JXL_DEC_COLOR_ENCODING | JXL_DEC_FRAME;
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if (JxlDecoderSubscribeEvents(ctx->decoder, ctx->events) != JXL_DEC_SUCCESS) {
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av_log(avctx, AV_LOG_ERROR, "Error subscribing to JXL events\n");
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return AVERROR_EXTERNAL;
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}
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if (JxlDecoderSetParallelRunner(ctx->decoder, JxlThreadParallelRunner, ctx->runner) != JXL_DEC_SUCCESS) {
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av_log(avctx, AV_LOG_ERROR, "Failed to set JxlThreadParallelRunner\n");
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return AVERROR_EXTERNAL;
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}
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memset(&ctx->basic_info, 0, sizeof(JxlBasicInfo));
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memset(&ctx->jxl_pixfmt, 0, sizeof(JxlPixelFormat));
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ctx->prev_is_last = 1;
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return 0;
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}
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static av_cold int libjxl_decode_init(AVCodecContext *avctx)
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{
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LibJxlDecodeContext *ctx = avctx->priv_data;
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JxlMemoryManager manager;
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ff_libjxl_init_memory_manager(&manager);
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ctx->decoder = JxlDecoderCreate(&manager);
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if (!ctx->decoder) {
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av_log(avctx, AV_LOG_ERROR, "Failed to create JxlDecoder\n");
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return AVERROR_EXTERNAL;
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}
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ctx->runner = JxlThreadParallelRunnerCreate(&manager, ff_libjxl_get_threadcount(avctx->thread_count));
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if (!ctx->runner) {
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av_log(avctx, AV_LOG_ERROR, "Failed to create JxlThreadParallelRunner\n");
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return AVERROR_EXTERNAL;
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}
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ctx->avpkt = avctx->internal->in_pkt;
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ctx->frame = av_frame_alloc();
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if (!ctx->frame)
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return AVERROR(ENOMEM);
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return libjxl_init_jxl_decoder(avctx);
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}
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static enum AVPixelFormat libjxl_get_pix_fmt(AVCodecContext *avctx, LibJxlDecodeContext *ctx)
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{
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const JxlBasicInfo *basic_info = &ctx->basic_info;
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JxlPixelFormat *format = &ctx->jxl_pixfmt;
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format->endianness = JXL_NATIVE_ENDIAN;
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format->num_channels = basic_info->num_color_channels + (basic_info->alpha_bits > 0);
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#if JPEGXL_NUMERIC_VERSION >= JPEGXL_COMPUTE_NUMERIC_VERSION(0, 8, 0)
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ctx->jxl_bit_depth.bits_per_sample = avctx->bits_per_raw_sample = basic_info->bits_per_sample;
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ctx->jxl_bit_depth.type = JXL_BIT_DEPTH_FROM_PIXEL_FORMAT;
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ctx->jxl_bit_depth.exponent_bits_per_sample = basic_info->exponent_bits_per_sample;
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#endif
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/* Gray */
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if (basic_info->num_color_channels == 1) {
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if (basic_info->bits_per_sample <= 8) {
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format->data_type = JXL_TYPE_UINT8;
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return basic_info->alpha_bits ? AV_PIX_FMT_YA8 : AV_PIX_FMT_GRAY8;
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}
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if (basic_info->exponent_bits_per_sample || basic_info->bits_per_sample > 16) {
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if (!basic_info->alpha_bits) {
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format->data_type = JXL_TYPE_FLOAT;
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return AV_PIX_FMT_GRAYF32;
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}
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av_log(avctx, AV_LOG_WARNING, "Downsampling gray+alpha float to 16-bit integer via libjxl\n");
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}
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format->data_type = JXL_TYPE_UINT16;
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return basic_info->alpha_bits ? AV_PIX_FMT_YA16 : AV_PIX_FMT_GRAY16;
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}
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/* rgb only */
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/* libjxl only supports packed RGB and gray output at the moment */
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if (basic_info->num_color_channels == 3) {
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if (basic_info->bits_per_sample <= 8) {
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format->data_type = JXL_TYPE_UINT8;
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return basic_info->alpha_bits ? AV_PIX_FMT_RGBA : AV_PIX_FMT_RGB24;
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}
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if (basic_info->exponent_bits_per_sample || basic_info->bits_per_sample > 16) {
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format->data_type = JXL_TYPE_FLOAT;
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return basic_info->alpha_bits ? AV_PIX_FMT_RGBAF32 : AV_PIX_FMT_RGBF32;
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}
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format->data_type = JXL_TYPE_UINT16;
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return basic_info->alpha_bits ? AV_PIX_FMT_RGBA64 : AV_PIX_FMT_RGB48;
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}
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return AV_PIX_FMT_NONE;
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}
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static enum AVColorPrimaries libjxl_get_primaries(void *avctx, const JxlColorEncoding *jxl_color)
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{
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AVColorPrimariesDesc desc;
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enum AVColorPrimaries prim;
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/* libjxl populates these double values even if it uses an enum space */
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desc.prim.r.x = av_d2q(jxl_color->primaries_red_xy[0], 300000);
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desc.prim.r.y = av_d2q(jxl_color->primaries_red_xy[1], 300000);
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desc.prim.g.x = av_d2q(jxl_color->primaries_green_xy[0], 300000);
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desc.prim.g.y = av_d2q(jxl_color->primaries_green_xy[1], 300000);
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desc.prim.b.x = av_d2q(jxl_color->primaries_blue_xy[0], 300000);
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desc.prim.b.y = av_d2q(jxl_color->primaries_blue_xy[1], 300000);
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desc.wp.x = av_d2q(jxl_color->white_point_xy[0], 300000);
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desc.wp.y = av_d2q(jxl_color->white_point_xy[1], 300000);
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prim = av_csp_primaries_id_from_desc(&desc);
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if (prim == AVCOL_PRI_UNSPECIFIED) {
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/* try D65 with the same primaries */
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/* BT.709 uses D65 white point */
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desc.wp = av_csp_primaries_desc_from_id(AVCOL_PRI_BT709)->wp;
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av_log(avctx, AV_LOG_WARNING, "Changing unknown white point to D65\n");
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prim = av_csp_primaries_id_from_desc(&desc);
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}
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return prim;
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}
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static enum AVColorTransferCharacteristic libjxl_get_trc(void *avctx, const JxlColorEncoding *jxl_color)
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{
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switch (jxl_color->transfer_function) {
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case JXL_TRANSFER_FUNCTION_709: return AVCOL_TRC_BT709;
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case JXL_TRANSFER_FUNCTION_LINEAR: return AVCOL_TRC_LINEAR;
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case JXL_TRANSFER_FUNCTION_SRGB: return AVCOL_TRC_IEC61966_2_1;
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case JXL_TRANSFER_FUNCTION_PQ: return AVCOL_TRC_SMPTE2084;
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case JXL_TRANSFER_FUNCTION_DCI: return AVCOL_TRC_SMPTE428;
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case JXL_TRANSFER_FUNCTION_HLG: return AVCOL_TRC_ARIB_STD_B67;
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case JXL_TRANSFER_FUNCTION_GAMMA:
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if (jxl_color->gamma > 0.45355 && jxl_color->gamma < 0.45555)
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return AVCOL_TRC_GAMMA22;
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else if (jxl_color->gamma > 0.35614 && jxl_color->gamma < 0.35814)
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return AVCOL_TRC_GAMMA28;
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else
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av_log(avctx, AV_LOG_WARNING, "Unsupported gamma transfer: %f\n", jxl_color->gamma);
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break;
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default:
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av_log(avctx, AV_LOG_WARNING, "Unknown transfer function: %d\n", jxl_color->transfer_function);
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}
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return AVCOL_TRC_UNSPECIFIED;
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}
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static int libjxl_get_icc(AVCodecContext *avctx)
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{
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LibJxlDecodeContext *ctx = avctx->priv_data;
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size_t icc_len;
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JxlDecoderStatus jret;
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/* an ICC profile is present, and we can meaningfully get it,
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* because the pixel data is not XYB-encoded */
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#if JPEGXL_NUMERIC_VERSION < JPEGXL_COMPUTE_NUMERIC_VERSION(0, 9, 0)
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jret = JxlDecoderGetICCProfileSize(ctx->decoder, &ctx->jxl_pixfmt, JXL_COLOR_PROFILE_TARGET_DATA, &icc_len);
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#else
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jret = JxlDecoderGetICCProfileSize(ctx->decoder, JXL_COLOR_PROFILE_TARGET_DATA, &icc_len);
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#endif
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if (jret == JXL_DEC_SUCCESS && icc_len > 0) {
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av_buffer_unref(&ctx->iccp);
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ctx->iccp = av_buffer_alloc(icc_len);
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if (!ctx->iccp)
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return AVERROR(ENOMEM);
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#if JPEGXL_NUMERIC_VERSION < JPEGXL_COMPUTE_NUMERIC_VERSION(0, 9, 0)
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jret = JxlDecoderGetColorAsICCProfile(ctx->decoder, &ctx->jxl_pixfmt, JXL_COLOR_PROFILE_TARGET_DATA,
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ctx->iccp->data, icc_len);
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#else
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jret = JxlDecoderGetColorAsICCProfile(ctx->decoder, JXL_COLOR_PROFILE_TARGET_DATA, ctx->iccp->data, icc_len);
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#endif
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if (jret != JXL_DEC_SUCCESS) {
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av_log(avctx, AV_LOG_WARNING, "Unable to obtain ICC Profile\n");
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av_buffer_unref(&ctx->iccp);
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}
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}
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return 0;
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}
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/*
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* There's generally four cases when it comes to decoding a libjxl image
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* with regard to color encoding:
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* (a) There is an embedded ICC profile in the image, and the image is XYB-encoded.
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* (b) There is an embedded ICC profile in the image, and the image is not XYB-encoded.
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* (c) There is no embedded ICC profile, and FFmpeg supports the tagged colorspace.
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* (d) There is no embedded ICC profile, and FFmpeg does not support the tagged colorspace.
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*
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* In case (b), we forward the pixel data as is and forward the ICC Profile as-is.
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* In case (c), we request the pixel data in the space it's tagged as,
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* and tag the space accordingly.
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* In case (a), libjxl does not support getting the pixel data in the space described by the ICC
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* profile, so instead we request the pixel data in BT.2020/PQ as it is the widest
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* space that FFmpeg supports.
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* In case (d), we also request wide-gamut pixel data as a fallback since FFmpeg doesn't support
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* the custom primaries tagged in the space.
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*/
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static int libjxl_color_encoding_event(AVCodecContext *avctx, AVFrame *frame)
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{
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LibJxlDecodeContext *ctx = avctx->priv_data;
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JxlDecoderStatus jret;
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int ret;
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JxlColorEncoding jxl_color;
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/* set this flag if we need to fall back on wide gamut */
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int fallback = 0;
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#if JPEGXL_NUMERIC_VERSION < JPEGXL_COMPUTE_NUMERIC_VERSION(0, 9, 0)
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jret = JxlDecoderGetColorAsEncodedProfile(ctx->decoder, NULL, JXL_COLOR_PROFILE_TARGET_ORIGINAL, &jxl_color);
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#else
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jret = JxlDecoderGetColorAsEncodedProfile(ctx->decoder, JXL_COLOR_PROFILE_TARGET_ORIGINAL, &jxl_color);
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#endif
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if (jret == JXL_DEC_SUCCESS) {
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/* enum values describe the colors of this image */
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jret = JxlDecoderSetPreferredColorProfile(ctx->decoder, &jxl_color);
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if (jret == JXL_DEC_SUCCESS)
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#if JPEGXL_NUMERIC_VERSION < JPEGXL_COMPUTE_NUMERIC_VERSION(0, 9, 0)
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jret = JxlDecoderGetColorAsEncodedProfile(ctx->decoder, &ctx->jxl_pixfmt,
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JXL_COLOR_PROFILE_TARGET_DATA, &jxl_color);
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#else
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jret = JxlDecoderGetColorAsEncodedProfile(ctx->decoder, JXL_COLOR_PROFILE_TARGET_DATA, &jxl_color);
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#endif
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/* if we couldn't successfully request the pixel data space, we fall back on wide gamut */
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/* this code path is very unlikely to happen in practice */
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if (jret != JXL_DEC_SUCCESS)
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fallback = 1;
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} else {
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/* an ICC Profile is present in the stream */
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if (ctx->basic_info.uses_original_profile) {
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/* uses_original_profile is the same as !xyb_encoded */
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av_log(avctx, AV_LOG_VERBOSE, "Using embedded ICC Profile\n");
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if ((ret = libjxl_get_icc(avctx)) < 0)
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return ret;
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} else {
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/*
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* an XYB-encoded image with an embedded ICC profile can't always have the
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* pixel data requested in the original space, so libjxl has no feature
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* to allow this to happen, so we fall back on wide gamut
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*/
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fallback = 1;
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}
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}
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avctx->color_range = frame->color_range = AVCOL_RANGE_JPEG;
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if (ctx->basic_info.num_color_channels > 1)
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avctx->colorspace = AVCOL_SPC_RGB;
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avctx->color_primaries = AVCOL_PRI_UNSPECIFIED;
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avctx->color_trc = AVCOL_TRC_UNSPECIFIED;
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if (!ctx->iccp) {
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/* checking enum values */
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if (!fallback) {
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if (avctx->colorspace == AVCOL_SPC_RGB)
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avctx->color_primaries = libjxl_get_primaries(avctx, &jxl_color);
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avctx->color_trc = libjxl_get_trc(avctx, &jxl_color);
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}
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/* fall back on wide gamut if enum values fail */
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if (avctx->color_primaries == AVCOL_PRI_UNSPECIFIED) {
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if (avctx->colorspace == AVCOL_SPC_RGB) {
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av_log(avctx, AV_LOG_WARNING, "Falling back on wide gamut output\n");
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jxl_color.primaries = JXL_PRIMARIES_2100;
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avctx->color_primaries = AVCOL_PRI_BT2020;
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}
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/* libjxl requires this set even for grayscale */
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jxl_color.white_point = JXL_WHITE_POINT_D65;
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}
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if (avctx->color_trc == AVCOL_TRC_UNSPECIFIED) {
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if (ctx->jxl_pixfmt.data_type == JXL_TYPE_FLOAT
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|| ctx->jxl_pixfmt.data_type == JXL_TYPE_FLOAT16) {
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av_log(avctx, AV_LOG_WARNING, "Falling back on Linear Light transfer\n");
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jxl_color.transfer_function = JXL_TRANSFER_FUNCTION_LINEAR;
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avctx->color_trc = AVCOL_TRC_LINEAR;
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} else {
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av_log(avctx, AV_LOG_WARNING, "Falling back on iec61966-2-1/sRGB transfer\n");
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jxl_color.transfer_function = JXL_TRANSFER_FUNCTION_SRGB;
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avctx->color_trc = AVCOL_TRC_IEC61966_2_1;
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}
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}
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/* all colors will be in-gamut so we want accurate colors */
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jxl_color.rendering_intent = JXL_RENDERING_INTENT_RELATIVE;
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jxl_color.color_space = ctx->basic_info.num_color_channels > 1 ? JXL_COLOR_SPACE_RGB : JXL_COLOR_SPACE_GRAY;
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jret = JxlDecoderSetPreferredColorProfile(ctx->decoder, &jxl_color);
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if (jret != JXL_DEC_SUCCESS) {
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av_log(avctx, AV_LOG_WARNING, "Unable to set fallback color encoding\n");
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/*
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* This should only happen if there's a non-XYB encoded image with custom primaries
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* embedded as enums and no embedded ICC Profile.
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* In this case, libjxl will synthesize an ICC Profile for us.
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*/
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avctx->color_trc = AVCOL_TRC_UNSPECIFIED;
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avctx->color_primaries = AVCOL_PRI_UNSPECIFIED;
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if ((ret = libjxl_get_icc(avctx)) < 0)
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return ret;
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}
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}
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frame->color_trc = avctx->color_trc;
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frame->color_primaries = avctx->color_primaries;
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frame->colorspace = avctx->colorspace;
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return 0;
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}
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static int libjxl_receive_frame(AVCodecContext *avctx, AVFrame *frame)
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{
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LibJxlDecodeContext *ctx = avctx->priv_data;
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JxlDecoderStatus jret = JXL_DEC_SUCCESS;
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int ret;
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AVPacket *pkt = ctx->avpkt;
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while (1) {
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size_t remaining;
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JxlFrameHeader header;
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if (!pkt->size) {
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av_packet_unref(pkt);
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ret = ff_decode_get_packet(avctx, pkt);
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if (ret < 0 && ret != AVERROR_EOF)
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return ret;
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ctx->accumulated_pts = 0;
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ctx->frame_duration = 0;
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if (!pkt->size) {
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/* jret set by the last iteration of the loop */
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if (jret == JXL_DEC_NEED_MORE_INPUT) {
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av_log(avctx, AV_LOG_ERROR, "Unexpected end of JXL codestream\n");
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return AVERROR_INVALIDDATA;
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} else {
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return AVERROR_EOF;
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}
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}
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}
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jret = JxlDecoderSetInput(ctx->decoder, pkt->data, pkt->size);
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if (jret == JXL_DEC_ERROR) {
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/* this should never happen here unless there's a bug in libjxl */
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av_log(avctx, AV_LOG_ERROR, "Unknown libjxl decode error\n");
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return AVERROR_EXTERNAL;
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}
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jret = JxlDecoderProcessInput(ctx->decoder);
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/*
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|
* JxlDecoderReleaseInput returns the number
|
|
* of bytes remaining to be read, rather than
|
|
* the number of bytes that it did read
|
|
*/
|
|
remaining = JxlDecoderReleaseInput(ctx->decoder);
|
|
pkt->data += pkt->size - remaining;
|
|
pkt->size = remaining;
|
|
|
|
switch(jret) {
|
|
case JXL_DEC_ERROR:
|
|
av_log(avctx, AV_LOG_ERROR, "Unknown libjxl decode error\n");
|
|
return AVERROR_INVALIDDATA;
|
|
case JXL_DEC_NEED_MORE_INPUT:
|
|
av_log(avctx, AV_LOG_DEBUG, "NEED_MORE_INPUT event emitted\n");
|
|
continue;
|
|
case JXL_DEC_BASIC_INFO:
|
|
av_log(avctx, AV_LOG_DEBUG, "BASIC_INFO event emitted\n");
|
|
if (JxlDecoderGetBasicInfo(ctx->decoder, &ctx->basic_info) != JXL_DEC_SUCCESS) {
|
|
/*
|
|
* this should never happen
|
|
* if it does it is likely a libjxl decoder bug
|
|
*/
|
|
av_log(avctx, AV_LOG_ERROR, "Bad libjxl basic info event\n");
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
avctx->pix_fmt = libjxl_get_pix_fmt(avctx, ctx);
|
|
if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
|
|
av_log(avctx, AV_LOG_ERROR, "Bad libjxl pixel format\n");
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
if ((ret = ff_set_dimensions(avctx, ctx->basic_info.xsize, ctx->basic_info.ysize)) < 0)
|
|
return ret;
|
|
if (ctx->basic_info.have_animation)
|
|
ctx->anim_timebase = av_make_q(ctx->basic_info.animation.tps_denominator,
|
|
ctx->basic_info.animation.tps_numerator);
|
|
continue;
|
|
case JXL_DEC_COLOR_ENCODING:
|
|
av_log(avctx, AV_LOG_DEBUG, "COLOR_ENCODING event emitted\n");
|
|
ret = libjxl_color_encoding_event(avctx, ctx->frame);
|
|
if (ret < 0)
|
|
return ret;
|
|
continue;
|
|
case JXL_DEC_NEED_IMAGE_OUT_BUFFER:
|
|
av_log(avctx, AV_LOG_DEBUG, "NEED_IMAGE_OUT_BUFFER event emitted\n");
|
|
ret = ff_get_buffer(avctx, ctx->frame, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
ctx->jxl_pixfmt.align = ctx->frame->linesize[0];
|
|
if (JxlDecoderSetImageOutBuffer(ctx->decoder, &ctx->jxl_pixfmt,
|
|
ctx->frame->data[0], ctx->frame->buf[0]->size)
|
|
!= JXL_DEC_SUCCESS) {
|
|
av_log(avctx, AV_LOG_ERROR, "Bad libjxl dec need image out buffer event\n");
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
#if JPEGXL_NUMERIC_VERSION >= JPEGXL_COMPUTE_NUMERIC_VERSION(0, 8, 0)
|
|
if (JxlDecoderSetImageOutBitDepth(ctx->decoder, &ctx->jxl_bit_depth) != JXL_DEC_SUCCESS) {
|
|
av_log(avctx, AV_LOG_ERROR, "Error setting output bit depth\n");
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
#endif
|
|
continue;
|
|
case JXL_DEC_FRAME:
|
|
/* Frame here refers to the Frame bundle, not a decoded picture */
|
|
av_log(avctx, AV_LOG_DEBUG, "FRAME event emitted\n");
|
|
if (ctx->prev_is_last) {
|
|
/*
|
|
* The last frame sent was tagged as "is_last" which
|
|
* means this is a new image file altogether.
|
|
*/
|
|
ctx->frame->pict_type = AV_PICTURE_TYPE_I;
|
|
ctx->frame->flags |= AV_FRAME_FLAG_KEY;
|
|
}
|
|
if (JxlDecoderGetFrameHeader(ctx->decoder, &header) != JXL_DEC_SUCCESS) {
|
|
av_log(avctx, AV_LOG_ERROR, "Bad libjxl dec frame event\n");
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
ctx->prev_is_last = header.is_last;
|
|
/* zero duration for animation means the frame is not presented */
|
|
if (ctx->basic_info.have_animation && header.duration)
|
|
ctx->frame_duration = header.duration;
|
|
continue;
|
|
case JXL_DEC_FULL_IMAGE:
|
|
/* full image is one frame, even if animated */
|
|
av_log(avctx, AV_LOG_DEBUG, "FULL_IMAGE event emitted\n");
|
|
if (ctx->iccp) {
|
|
ret = ff_frame_new_side_data_from_buf(avctx, ctx->frame, AV_FRAME_DATA_ICC_PROFILE, &ctx->iccp, NULL);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
if (ctx->basic_info.have_animation) {
|
|
ctx->frame->pts = av_rescale_q(ctx->accumulated_pts, ctx->anim_timebase, avctx->pkt_timebase);
|
|
ctx->frame->duration = av_rescale_q(ctx->frame_duration, ctx->anim_timebase, avctx->pkt_timebase);
|
|
} else {
|
|
ctx->frame->pts = 0;
|
|
ctx->frame->duration = pkt->duration;
|
|
}
|
|
if (pkt->pts != AV_NOPTS_VALUE)
|
|
ctx->frame->pts += pkt->pts;
|
|
ctx->accumulated_pts += ctx->frame_duration;
|
|
ctx->frame->pkt_dts = pkt->dts;
|
|
av_frame_move_ref(frame, ctx->frame);
|
|
return 0;
|
|
case JXL_DEC_SUCCESS:
|
|
av_log(avctx, AV_LOG_DEBUG, "SUCCESS event emitted\n");
|
|
/*
|
|
* this event will be fired when the zero-length EOF
|
|
* packet is sent to the decoder by the client,
|
|
* but it will also be fired when the next image of
|
|
* an image2pipe sequence is loaded up
|
|
*/
|
|
JxlDecoderReset(ctx->decoder);
|
|
libjxl_init_jxl_decoder(avctx);
|
|
continue;
|
|
default:
|
|
av_log(avctx, AV_LOG_ERROR, "Bad libjxl event: %d\n", jret);
|
|
return AVERROR_EXTERNAL;
|
|
}
|
|
}
|
|
}
|
|
|
|
static av_cold int libjxl_decode_close(AVCodecContext *avctx)
|
|
{
|
|
LibJxlDecodeContext *ctx = avctx->priv_data;
|
|
|
|
if (ctx->runner)
|
|
JxlThreadParallelRunnerDestroy(ctx->runner);
|
|
ctx->runner = NULL;
|
|
if (ctx->decoder)
|
|
JxlDecoderDestroy(ctx->decoder);
|
|
ctx->decoder = NULL;
|
|
av_buffer_unref(&ctx->iccp);
|
|
av_frame_free(&ctx->frame);
|
|
|
|
return 0;
|
|
}
|
|
|
|
const FFCodec ff_libjxl_decoder = {
|
|
.p.name = "libjxl",
|
|
CODEC_LONG_NAME("libjxl JPEG XL"),
|
|
.p.type = AVMEDIA_TYPE_VIDEO,
|
|
.p.id = AV_CODEC_ID_JPEGXL,
|
|
.priv_data_size = sizeof(LibJxlDecodeContext),
|
|
.init = libjxl_decode_init,
|
|
FF_CODEC_RECEIVE_FRAME_CB(libjxl_receive_frame),
|
|
.close = libjxl_decode_close,
|
|
.p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_OTHER_THREADS,
|
|
.caps_internal = FF_CODEC_CAP_NOT_INIT_THREADSAFE |
|
|
FF_CODEC_CAP_AUTO_THREADS | FF_CODEC_CAP_INIT_CLEANUP |
|
|
FF_CODEC_CAP_ICC_PROFILES,
|
|
.p.wrapper_name = "libjxl",
|
|
};
|