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-rw-r--r--libavcodec/crystalhd.c816
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diff --git a/libavcodec/crystalhd.c b/libavcodec/crystalhd.c
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--- /dev/null
+++ b/libavcodec/crystalhd.c
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+/*
+ * - CrystalHD decoder module -
+ *
+ * Copyright(C) 2010,2011 Philip Langdale <ffmpeg.philipl@overt.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * - Principles of Operation -
+ *
+ * The CrystalHD decoder operates at the bitstream level - which is an even
+ * higher level than the decoding hardware you typically see in modern GPUs.
+ * This means it has a very simple interface, in principle. You feed demuxed
+ * packets in one end and get decoded picture (fields/frames) out the other.
+ *
+ * Of course, nothing is ever that simple. Due, at the very least, to b-frame
+ * dependencies in the supported formats, the hardware has a delay between
+ * when a packet goes in, and when a picture comes out. Furthermore, this delay
+ * is not just a function of time, but also one of the dependency on additional
+ * frames being fed into the decoder to satisfy the b-frame dependencies.
+ *
+ * As such, the hardware can only be used effectively with a decode API that
+ * doesn't assume a 1:1 relationship between input packets and output frames.
+ * The new avcodec decode API is such an API (an m:n API) while the old one is
+ * 1:1. Consequently, we no longer support the old API, which allows us to avoid
+ * the vicious hacks that are required to approximate 1:1 operation.
+ */
+
+/*****************************************************************************
+ * Includes
+ ****************************************************************************/
+
+#define _XOPEN_SOURCE 600
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <libcrystalhd/bc_dts_types.h>
+#include <libcrystalhd/bc_dts_defs.h>
+#include <libcrystalhd/libcrystalhd_if.h>
+
+#include "avcodec.h"
+#include "decode.h"
+#include "internal.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/opt.h"
+
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+/** Timeout parameter passed to DtsProcOutput() in us */
+#define OUTPUT_PROC_TIMEOUT 50
+/** Step between fake timestamps passed to hardware in units of 100ns */
+#define TIMESTAMP_UNIT 100000
+
+
+/*****************************************************************************
+ * Module private data
+ ****************************************************************************/
+
+typedef enum {
+ RET_ERROR = -1,
+ RET_OK = 0,
+ RET_COPY_AGAIN = 1,
+} CopyRet;
+
+typedef struct OpaqueList {
+ struct OpaqueList *next;
+ uint64_t fake_timestamp;
+ uint64_t reordered_opaque;
+} OpaqueList;
+
+typedef struct {
+ AVClass *av_class;
+ AVCodecContext *avctx;
+ HANDLE dev;
+
+ uint8_t is_70012;
+ uint8_t need_second_field;
+ uint8_t draining;
+
+ OpaqueList *head;
+ OpaqueList *tail;
+
+ /* Options */
+ uint32_t sWidth;
+} CHDContext;
+
+static const AVOption options[] = {
+ { "crystalhd_downscale_width",
+ "Turn on downscaling to the specified width",
+ offsetof(CHDContext, sWidth),
+ AV_OPT_TYPE_INT, {.i64 = 0}, 0, UINT32_MAX,
+ AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM, },
+ { NULL, },
+};
+
+
+/*****************************************************************************
+ * Helper functions
+ ****************************************************************************/
+
+static inline BC_MEDIA_SUBTYPE id2subtype(CHDContext *priv, enum AVCodecID id)
+{
+ switch (id) {
+ case AV_CODEC_ID_MPEG4:
+ return BC_MSUBTYPE_DIVX;
+ case AV_CODEC_ID_MSMPEG4V3:
+ return BC_MSUBTYPE_DIVX311;
+ case AV_CODEC_ID_MPEG2VIDEO:
+ return BC_MSUBTYPE_MPEG2VIDEO;
+ case AV_CODEC_ID_VC1:
+ return BC_MSUBTYPE_VC1;
+ case AV_CODEC_ID_WMV3:
+ return BC_MSUBTYPE_WMV3;
+ case AV_CODEC_ID_H264:
+ return BC_MSUBTYPE_H264;
+ default:
+ return BC_MSUBTYPE_INVALID;
+ }
+}
+
+static inline void print_frame_info(CHDContext *priv, BC_DTS_PROC_OUT *output)
+{
+ av_log(priv->avctx, AV_LOG_TRACE, "\tYBuffSz: %u\n", output->YbuffSz);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tYBuffDoneSz: %u\n",
+ output->YBuffDoneSz);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tUVBuffDoneSz: %u\n",
+ output->UVBuffDoneSz);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tTimestamp: %"PRIu64"\n",
+ output->PicInfo.timeStamp);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tPicture Number: %u\n",
+ output->PicInfo.picture_number);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tWidth: %u\n",
+ output->PicInfo.width);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tHeight: %u\n",
+ output->PicInfo.height);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tChroma: 0x%03x\n",
+ output->PicInfo.chroma_format);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tPulldown: %u\n",
+ output->PicInfo.pulldown);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tFlags: 0x%08x\n",
+ output->PicInfo.flags);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tFrame Rate/Res: %u\n",
+ output->PicInfo.frame_rate);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tAspect Ratio: %u\n",
+ output->PicInfo.aspect_ratio);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tColor Primaries: %u\n",
+ output->PicInfo.colour_primaries);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tMetaData: %u\n",
+ output->PicInfo.picture_meta_payload);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tSession Number: %u\n",
+ output->PicInfo.sess_num);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tycom: %u\n",
+ output->PicInfo.ycom);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tCustom Aspect: %u\n",
+ output->PicInfo.custom_aspect_ratio_width_height);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tFrames to Drop: %u\n",
+ output->PicInfo.n_drop);
+ av_log(priv->avctx, AV_LOG_TRACE, "\tH264 Valid Fields: 0x%08x\n",
+ output->PicInfo.other.h264.valid);
+}
+
+
+/*****************************************************************************
+ * OpaqueList functions
+ ****************************************************************************/
+
+static uint64_t opaque_list_push(CHDContext *priv, uint64_t reordered_opaque)
+{
+ OpaqueList *newNode = av_mallocz(sizeof (OpaqueList));
+ if (!newNode) {
+ av_log(priv->avctx, AV_LOG_ERROR,
+ "Unable to allocate new node in OpaqueList.\n");
+ return 0;
+ }
+ if (!priv->head) {
+ newNode->fake_timestamp = TIMESTAMP_UNIT;
+ priv->head = newNode;
+ } else {
+ newNode->fake_timestamp = priv->tail->fake_timestamp + TIMESTAMP_UNIT;
+ priv->tail->next = newNode;
+ }
+ priv->tail = newNode;
+ newNode->reordered_opaque = reordered_opaque;
+
+ return newNode->fake_timestamp;
+}
+
+/*
+ * The OpaqueList is built in decode order, while elements will be removed
+ * in presentation order. If frames are reordered, this means we must be
+ * able to remove elements that are not the first element.
+ *
+ * Returned node must be freed by caller.
+ */
+static OpaqueList *opaque_list_pop(CHDContext *priv, uint64_t fake_timestamp)
+{
+ OpaqueList *node = priv->head;
+
+ if (!priv->head) {
+ av_log(priv->avctx, AV_LOG_ERROR,
+ "CrystalHD: Attempted to query non-existent timestamps.\n");
+ return NULL;
+ }
+
+ /*
+ * The first element is special-cased because we have to manipulate
+ * the head pointer rather than the previous element in the list.
+ */
+ if (priv->head->fake_timestamp == fake_timestamp) {
+ priv->head = node->next;
+
+ if (!priv->head->next)
+ priv->tail = priv->head;
+
+ node->next = NULL;
+ return node;
+ }
+
+ /*
+ * The list is processed at arm's length so that we have the
+ * previous element available to rewrite its next pointer.
+ */
+ while (node->next) {
+ OpaqueList *current = node->next;
+ if (current->fake_timestamp == fake_timestamp) {
+ node->next = current->next;
+
+ if (!node->next)
+ priv->tail = node;
+
+ current->next = NULL;
+ return current;
+ } else {
+ node = current;
+ }
+ }
+
+ av_log(priv->avctx, AV_LOG_VERBOSE,
+ "CrystalHD: Couldn't match fake_timestamp.\n");
+ return NULL;
+}
+
+
+/*****************************************************************************
+ * Video decoder API function definitions
+ ****************************************************************************/
+
+static void flush(AVCodecContext *avctx)
+{
+ CHDContext *priv = avctx->priv_data;
+
+ priv->need_second_field = 0;
+ priv->draining = 0;
+
+ /* Flush mode 4 flushes all software and hardware buffers. */
+ DtsFlushInput(priv->dev, 4);
+}
+
+
+static av_cold int uninit(AVCodecContext *avctx)
+{
+ CHDContext *priv = avctx->priv_data;
+ HANDLE device;
+
+ device = priv->dev;
+ DtsStopDecoder(device);
+ DtsCloseDecoder(device);
+ DtsDeviceClose(device);
+
+ if (priv->head) {
+ OpaqueList *node = priv->head;
+ while (node) {
+ OpaqueList *next = node->next;
+ av_free(node);
+ node = next;
+ }
+ }
+
+ return 0;
+}
+
+static av_cold int init(AVCodecContext *avctx)
+{
+ CHDContext* priv;
+ BC_STATUS ret;
+ BC_INFO_CRYSTAL version;
+ BC_INPUT_FORMAT format = {
+ .FGTEnable = FALSE,
+ .Progressive = TRUE,
+ .OptFlags = 0x80000000 | vdecFrameRate59_94 | 0x40,
+ .width = avctx->width,
+ .height = avctx->height,
+ };
+
+ BC_MEDIA_SUBTYPE subtype;
+
+ uint32_t mode = DTS_PLAYBACK_MODE |
+ DTS_LOAD_FILE_PLAY_FW |
+ DTS_SKIP_TX_CHK_CPB |
+ DTS_PLAYBACK_DROP_RPT_MODE |
+ DTS_SINGLE_THREADED_MODE |
+ DTS_DFLT_RESOLUTION(vdecRESOLUTION_1080p23_976);
+
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD Init for %s\n",
+ avctx->codec->name);
+
+ avctx->pix_fmt = AV_PIX_FMT_YUYV422;
+
+ /* Initialize the library */
+ priv = avctx->priv_data;
+ priv->avctx = avctx;
+ priv->draining = 0;
+
+ subtype = id2subtype(priv, avctx->codec->id);
+ switch (subtype) {
+ case BC_MSUBTYPE_H264:
+ format.startCodeSz = 4;
+ // Fall-through
+ case BC_MSUBTYPE_VC1:
+ case BC_MSUBTYPE_WVC1:
+ case BC_MSUBTYPE_WMV3:
+ case BC_MSUBTYPE_WMVA:
+ case BC_MSUBTYPE_MPEG2VIDEO:
+ case BC_MSUBTYPE_DIVX:
+ case BC_MSUBTYPE_DIVX311:
+ format.pMetaData = avctx->extradata;
+ format.metaDataSz = avctx->extradata_size;
+ break;
+ default:
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: Unknown codec name\n");
+ return AVERROR(EINVAL);
+ }
+ format.mSubtype = subtype;
+
+ if (priv->sWidth) {
+ format.bEnableScaling = 1;
+ format.ScalingParams.sWidth = priv->sWidth;
+ }
+
+ /* Get a decoder instance */
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: starting up\n");
+ // Initialize the Link and Decoder devices
+ ret = DtsDeviceOpen(&priv->dev, mode);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: DtsDeviceOpen failed\n");
+ goto fail;
+ }
+
+ ret = DtsCrystalHDVersion(priv->dev, &version);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_VERBOSE,
+ "CrystalHD: DtsCrystalHDVersion failed\n");
+ goto fail;
+ }
+ priv->is_70012 = version.device == 0;
+
+ if (priv->is_70012 &&
+ (subtype == BC_MSUBTYPE_DIVX || subtype == BC_MSUBTYPE_DIVX311)) {
+ av_log(avctx, AV_LOG_VERBOSE,
+ "CrystalHD: BCM70012 doesn't support MPEG4-ASP/DivX/Xvid\n");
+ goto fail;
+ }
+
+ ret = DtsSetInputFormat(priv->dev, &format);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: SetInputFormat failed\n");
+ goto fail;
+ }
+
+ ret = DtsOpenDecoder(priv->dev, BC_STREAM_TYPE_ES);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsOpenDecoder failed\n");
+ goto fail;
+ }
+
+ ret = DtsSetColorSpace(priv->dev, OUTPUT_MODE422_YUY2);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsSetColorSpace failed\n");
+ goto fail;
+ }
+ ret = DtsStartDecoder(priv->dev);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsStartDecoder failed\n");
+ goto fail;
+ }
+ ret = DtsStartCapture(priv->dev);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: DtsStartCapture failed\n");
+ goto fail;
+ }
+
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Init complete.\n");
+
+ return 0;
+
+ fail:
+ uninit(avctx);
+ return -1;
+}
+
+
+static inline CopyRet copy_frame(AVCodecContext *avctx,
+ BC_DTS_PROC_OUT *output,
+ AVFrame *frame, int *got_frame)
+{
+ BC_STATUS ret;
+ BC_DTS_STATUS decoder_status = { 0, };
+ uint8_t interlaced;
+
+ CHDContext *priv = avctx->priv_data;
+ int64_t pkt_pts = AV_NOPTS_VALUE;
+
+ uint8_t bottom_field = (output->PicInfo.flags & VDEC_FLAG_BOTTOMFIELD) ==
+ VDEC_FLAG_BOTTOMFIELD;
+ uint8_t bottom_first = !!(output->PicInfo.flags & VDEC_FLAG_BOTTOM_FIRST);
+
+ int width = output->PicInfo.width;
+ int height = output->PicInfo.height;
+ int bwidth;
+ uint8_t *src = output->Ybuff;
+ int sStride;
+ uint8_t *dst;
+ int dStride;
+
+ if (output->PicInfo.timeStamp != 0) {
+ OpaqueList *node = opaque_list_pop(priv, output->PicInfo.timeStamp);
+ if (node) {
+ pkt_pts = node->reordered_opaque;
+ av_free(node);
+ } else {
+ /*
+ * We will encounter a situation where a timestamp cannot be
+ * popped if a second field is being returned. In this case,
+ * each field has the same timestamp and the first one will
+ * cause it to be popped. We'll avoid overwriting the valid
+ * timestamp below.
+ */
+ }
+ av_log(avctx, AV_LOG_VERBOSE, "output \"pts\": %"PRIu64"\n",
+ output->PicInfo.timeStamp);
+ }
+
+ ret = DtsGetDriverStatus(priv->dev, &decoder_status);
+ if (ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR,
+ "CrystalHD: GetDriverStatus failed: %u\n", ret);
+ return RET_ERROR;
+ }
+
+ interlaced = output->PicInfo.flags & VDEC_FLAG_INTERLACED_SRC;
+
+ av_log(avctx, AV_LOG_VERBOSE, "Interlaced state: %d\n",
+ interlaced);
+
+ priv->need_second_field = interlaced && !priv->need_second_field;
+
+ if (!frame->data[0]) {
+ if (ff_get_buffer(avctx, frame, 0) < 0)
+ return RET_ERROR;
+ }
+
+ bwidth = av_image_get_linesize(avctx->pix_fmt, width, 0);
+ if (bwidth < 0)
+ return RET_ERROR;
+
+ if (priv->is_70012) {
+ int pStride;
+
+ if (width <= 720)
+ pStride = 720;
+ else if (width <= 1280)
+ pStride = 1280;
+ else pStride = 1920;
+ sStride = av_image_get_linesize(avctx->pix_fmt, pStride, 0);
+ if (sStride < 0)
+ return RET_ERROR;
+ } else {
+ sStride = bwidth;
+ }
+
+ dStride = frame->linesize[0];
+ dst = frame->data[0];
+
+ av_log(priv->avctx, AV_LOG_VERBOSE, "CrystalHD: Copying out frame\n");
+
+ /*
+ * The hardware doesn't return the first sample of a picture.
+ * Ignoring why it behaves this way, it's better to copy the sample from
+ * the second line, rather than the next sample across because the chroma
+ * values should be correct (assuming the decoded video was 4:2:0, which
+ * it was).
+ */
+ *((uint32_t *)src) = *((uint32_t *)(src + sStride));
+
+ if (interlaced) {
+ int dY = 0;
+ int sY = 0;
+
+ height /= 2;
+ if (bottom_field) {
+ av_log(priv->avctx, AV_LOG_VERBOSE, "Interlaced: bottom field\n");
+ dY = 1;
+ } else {
+ av_log(priv->avctx, AV_LOG_VERBOSE, "Interlaced: top field\n");
+ dY = 0;
+ }
+
+ for (sY = 0; sY < height; dY++, sY++) {
+ memcpy(&(dst[dY * dStride]), &(src[sY * sStride]), bwidth);
+ dY++;
+ }
+ } else {
+ av_image_copy_plane(dst, dStride, src, sStride, bwidth, height);
+ }
+
+ frame->interlaced_frame = interlaced;
+ if (interlaced)
+ frame->top_field_first = !bottom_first;
+
+ frame->pts = pkt_pts;
+#if FF_API_PKT_PTS
+FF_DISABLE_DEPRECATION_WARNINGS
+ frame->pkt_pts = pkt_pts;
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
+ frame->pkt_pos = -1;
+ frame->pkt_duration = 0;
+ frame->pkt_size = -1;
+
+ if (!priv->need_second_field) {
+ *got_frame = 1;
+ } else {
+ return RET_COPY_AGAIN;
+ }
+
+ return RET_OK;
+}
+
+
+static inline CopyRet receive_frame(AVCodecContext *avctx,
+ AVFrame *frame, int *got_frame)
+{
+ BC_STATUS ret;
+ BC_DTS_PROC_OUT output = {
+ .PicInfo.width = avctx->width,
+ .PicInfo.height = avctx->height,
+ };
+ CHDContext *priv = avctx->priv_data;
+ HANDLE dev = priv->dev;
+
+ *got_frame = 0;
+
+ // Request decoded data from the driver
+ ret = DtsProcOutputNoCopy(dev, OUTPUT_PROC_TIMEOUT, &output);
+ if (ret == BC_STS_FMT_CHANGE) {
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Initial format change\n");
+ avctx->width = output.PicInfo.width;
+ avctx->height = output.PicInfo.height;
+ switch ( output.PicInfo.aspect_ratio ) {
+ case vdecAspectRatioSquare:
+ avctx->sample_aspect_ratio = (AVRational) { 1, 1};
+ break;
+ case vdecAspectRatio12_11:
+ avctx->sample_aspect_ratio = (AVRational) { 12, 11};
+ break;
+ case vdecAspectRatio10_11:
+ avctx->sample_aspect_ratio = (AVRational) { 10, 11};
+ break;
+ case vdecAspectRatio16_11:
+ avctx->sample_aspect_ratio = (AVRational) { 16, 11};
+ break;
+ case vdecAspectRatio40_33:
+ avctx->sample_aspect_ratio = (AVRational) { 40, 33};
+ break;
+ case vdecAspectRatio24_11:
+ avctx->sample_aspect_ratio = (AVRational) { 24, 11};
+ break;
+ case vdecAspectRatio20_11:
+ avctx->sample_aspect_ratio = (AVRational) { 20, 11};
+ break;
+ case vdecAspectRatio32_11:
+ avctx->sample_aspect_ratio = (AVRational) { 32, 11};
+ break;
+ case vdecAspectRatio80_33:
+ avctx->sample_aspect_ratio = (AVRational) { 80, 33};
+ break;
+ case vdecAspectRatio18_11:
+ avctx->sample_aspect_ratio = (AVRational) { 18, 11};
+ break;
+ case vdecAspectRatio15_11:
+ avctx->sample_aspect_ratio = (AVRational) { 15, 11};
+ break;
+ case vdecAspectRatio64_33:
+ avctx->sample_aspect_ratio = (AVRational) { 64, 33};
+ break;
+ case vdecAspectRatio160_99:
+ avctx->sample_aspect_ratio = (AVRational) {160, 99};
+ break;
+ case vdecAspectRatio4_3:
+ avctx->sample_aspect_ratio = (AVRational) { 4, 3};
+ break;
+ case vdecAspectRatio16_9:
+ avctx->sample_aspect_ratio = (AVRational) { 16, 9};
+ break;
+ case vdecAspectRatio221_1:
+ avctx->sample_aspect_ratio = (AVRational) {221, 1};
+ break;
+ }
+ return RET_COPY_AGAIN;
+ } else if (ret == BC_STS_SUCCESS) {
+ int copy_ret = -1;
+ if (output.PoutFlags & BC_POUT_FLAGS_PIB_VALID) {
+ print_frame_info(priv, &output);
+
+ copy_ret = copy_frame(avctx, &output, frame, got_frame);
+ } else {
+ /*
+ * An invalid frame has been consumed.
+ */
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: ProcOutput succeeded with "
+ "invalid PIB\n");
+ copy_ret = RET_COPY_AGAIN;
+ }
+ DtsReleaseOutputBuffs(dev, NULL, FALSE);
+
+ return copy_ret;
+ } else if (ret == BC_STS_BUSY) {
+ return RET_COPY_AGAIN;
+ } else {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: ProcOutput failed %d\n", ret);
+ return RET_ERROR;
+ }
+}
+
+static int crystalhd_decode_packet(AVCodecContext *avctx, const AVPacket *avpkt)
+{
+ BC_STATUS bc_ret;
+ CHDContext *priv = avctx->priv_data;
+ HANDLE dev = priv->dev;
+ AVPacket filtered_packet = { 0 };
+ int ret = 0;
+
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: decode_packet\n");
+
+ if (avpkt && avpkt->size) {
+ uint64_t pts;
+
+ /*
+ * Despite being notionally opaque, either libcrystalhd or
+ * the hardware itself will mangle pts values that are too
+ * small or too large. The docs claim it should be in units
+ * of 100ns. Given that we're nominally dealing with a black
+ * box on both sides, any transform we do has no guarantee of
+ * avoiding mangling so we need to build a mapping to values
+ * we know will not be mangled.
+ */
+ pts = opaque_list_push(priv, avpkt->pts);
+ if (!pts) {
+ ret = AVERROR(ENOMEM);
+ goto exit;
+ }
+ av_log(priv->avctx, AV_LOG_VERBOSE,
+ "input \"pts\": %"PRIu64"\n", pts);
+ bc_ret = DtsProcInput(dev, avpkt->data, avpkt->size, pts, 0);
+ if (bc_ret == BC_STS_BUSY) {
+ av_log(avctx, AV_LOG_WARNING,
+ "CrystalHD: ProcInput returned busy\n");
+ ret = AVERROR(EAGAIN);
+ goto exit;
+ } else if (bc_ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR,
+ "CrystalHD: ProcInput failed: %u\n", ret);
+ ret = -1;
+ goto exit;
+ }
+ } else {
+ av_log(avctx, AV_LOG_INFO, "CrystalHD: No more input data\n");
+ priv->draining = 1;
+ ret = AVERROR_EOF;
+ goto exit;
+ }
+ exit:
+ av_packet_unref(&filtered_packet);
+ return ret;
+}
+
+static int crystalhd_receive_frame(AVCodecContext *avctx, AVFrame *frame)
+{
+ BC_STATUS bc_ret;
+ BC_DTS_STATUS decoder_status = { 0, };
+ CopyRet rec_ret;
+ CHDContext *priv = avctx->priv_data;
+ HANDLE dev = priv->dev;
+ int got_frame = 0;
+ int ret = 0;
+ AVPacket pkt = {0};
+
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: receive_frame\n");
+
+ ret = ff_decode_get_packet(avctx, &pkt);
+ if (ret < 0 && ret != AVERROR_EOF) {
+ return ret;
+ }
+
+ while (pkt.size > DtsTxFreeSize(dev)) {
+ /*
+ * Block until there is space in the buffer for the next packet.
+ * We assume that the hardware will make forward progress at this
+ * point, although in pathological cases that may not happen.
+ */
+ av_log(avctx, AV_LOG_TRACE, "CrystalHD: Waiting for space in input buffer\n");
+ }
+
+ ret = crystalhd_decode_packet(avctx, &pkt);
+ av_packet_unref(&pkt);
+ // crystalhd_is_buffer_full() should avoid this.
+ if (ret == AVERROR(EAGAIN)) {
+ ret = AVERROR_EXTERNAL;
+ }
+ if (ret < 0 && ret != AVERROR_EOF) {
+ return ret;
+ }
+
+ do {
+ bc_ret = DtsGetDriverStatus(dev, &decoder_status);
+ if (bc_ret != BC_STS_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "CrystalHD: GetDriverStatus failed\n");
+ return -1;
+ }
+
+ if (decoder_status.ReadyListCount == 0) {
+ av_log(avctx, AV_LOG_VERBOSE, "CrystalHD: Insufficient frames ready. Returning\n");
+ got_frame = 0;
+ rec_ret = RET_OK;
+ break;
+ }
+
+ rec_ret = receive_frame(avctx, frame, &got_frame);
+ } while (rec_ret == RET_COPY_AGAIN);
+
+ if (rec_ret == RET_ERROR) {
+ return -1;
+ } else if (got_frame == 0) {
+ return priv->draining ? AVERROR_EOF : AVERROR(EAGAIN);
+ } else {
+ return 0;
+ }
+}
+
+#define DEFINE_CRYSTALHD_DECODER(x, X, bsf_name) \
+ static const AVClass x##_crystalhd_class = { \
+ .class_name = #x "_crystalhd", \
+ .item_name = av_default_item_name, \
+ .option = options, \
+ .version = LIBAVUTIL_VERSION_INT, \
+ }; \
+ AVCodec ff_##x##_crystalhd_decoder = { \
+ .name = #x "_crystalhd", \
+ .long_name = NULL_IF_CONFIG_SMALL("CrystalHD " #X " decoder"), \
+ .type = AVMEDIA_TYPE_VIDEO, \
+ .id = AV_CODEC_ID_##X, \
+ .priv_data_size = sizeof(CHDContext), \
+ .priv_class = &x##_crystalhd_class, \
+ .init = init, \
+ .close = uninit, \
+ .receive_frame = crystalhd_receive_frame, \
+ .flush = flush, \
+ .bsfs = bsf_name, \
+ .capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_AVOID_PROBING | AV_CODEC_CAP_HARDWARE, \
+ .pix_fmts = (const enum AVPixelFormat[]){AV_PIX_FMT_YUYV422, AV_PIX_FMT_NONE}, \
+ .wrapper_name = "crystalhd", \
+ };
+
+#if CONFIG_H264_CRYSTALHD_DECODER
+DEFINE_CRYSTALHD_DECODER(h264, H264, "h264_mp4toannexb")
+#endif
+
+#if CONFIG_MPEG2_CRYSTALHD_DECODER
+DEFINE_CRYSTALHD_DECODER(mpeg2, MPEG2VIDEO, NULL)
+#endif
+
+#if CONFIG_MPEG4_CRYSTALHD_DECODER
+DEFINE_CRYSTALHD_DECODER(mpeg4, MPEG4, "mpeg4_unpack_bframes")
+#endif
+
+#if CONFIG_MSMPEG4_CRYSTALHD_DECODER
+DEFINE_CRYSTALHD_DECODER(msmpeg4, MSMPEG4V3, NULL)
+#endif
+
+#if CONFIG_VC1_CRYSTALHD_DECODER
+DEFINE_CRYSTALHD_DECODER(vc1, VC1, NULL)
+#endif
+
+#if CONFIG_WMV3_CRYSTALHD_DECODER
+DEFINE_CRYSTALHD_DECODER(wmv3, WMV3, NULL)
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-14 18:46:47 +0000