+++ /dev/null
-/*
- * gstvaapidecoder_ffmpeg.c - FFmpeg-based decoder
- *
- * Copyright (C) 2010-2011 Splitted-Desktop Systems
- * Copyright (C) 2011-2012 Intel Corporation
- *
- * This library 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.
- *
- * 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301 USA
- */
-
-/**
- * SECTION:gstvaapidecoder_ffmpeg
- * @short_description: FFmpeg-based decoder
- */
-
-#include "sysdeps.h"
-#ifdef HAVE_LIBAVCODEC_AVCODEC_H
-# include <libavcodec/avcodec.h>
-#endif
-#ifdef HAVE_FFMPEG_AVCODEC_H
-# include <ffmpeg/avcodec.h>
-#endif
-#ifdef HAVE_LIBAVCODEC_VAAPI_H
-# include <libavcodec/vaapi.h>
-#endif
-#ifdef HAVE_FFMPEG_VAAPI_H
-# include <ffmpeg/vaapi.h>
-#endif
-#include "gstvaapidecoder_ffmpeg.h"
-#include "gstvaapidecoder_priv.h"
-#include "gstvaapidisplay_priv.h"
-#include "gstvaapiobject_priv.h"
-
-#define DEBUG 1
-#include "gstvaapidebug.h"
-
-G_DEFINE_TYPE(GstVaapiDecoderFfmpeg,
- gst_vaapi_decoder_ffmpeg,
- GST_VAAPI_TYPE_DECODER);
-
-#define GST_VAAPI_DECODER_FFMPEG_GET_PRIVATE(obj) \
- (G_TYPE_INSTANCE_GET_PRIVATE((obj), \
- GST_VAAPI_TYPE_DECODER_FFMPEG, \
- GstVaapiDecoderFfmpegPrivate))
-
-typedef struct _GstVaapiContextFfmpeg GstVaapiContextFfmpeg;
-struct _GstVaapiContextFfmpeg {
- struct vaapi_context base;
- GstVaapiProfile profile;
- GstVaapiEntrypoint entrypoint;
- GstVaapiDecoderFfmpeg *decoder;
-};
-
-struct _GstVaapiDecoderFfmpegPrivate {
- GstClockTime in_timestamp; /* timestamp from the demuxer */
- AVFrame *frame;
- AVCodecParserContext *pctx;
- AVCodecContext *avctx;
- GstVaapiContextFfmpeg *vactx;
- guint is_constructed : 1;
- guint is_opened : 1;
-};
-
-/** Converts codec to FFmpeg codec id */
-static enum CodecID
-get_codec_id_from_codec(GstVaapiCodec codec)
-{
- switch (codec) {
- case GST_VAAPI_CODEC_MPEG1: return CODEC_ID_MPEG1VIDEO;
- case GST_VAAPI_CODEC_MPEG2: return CODEC_ID_MPEG2VIDEO;
- case GST_VAAPI_CODEC_MPEG4: return CODEC_ID_MPEG4;
- case GST_VAAPI_CODEC_H263: return CODEC_ID_H263;
- case GST_VAAPI_CODEC_H264: return CODEC_ID_H264;
- case GST_VAAPI_CODEC_WMV3: return CODEC_ID_WMV3;
- case GST_VAAPI_CODEC_VC1: return CODEC_ID_VC1;
- }
- return CODEC_ID_NONE;
-}
-
-/** Converts PixelFormat to entrypoint */
-static GstVaapiEntrypoint
-get_entrypoint(enum PixelFormat pix_fmt)
-{
- switch (pix_fmt) {
- case PIX_FMT_VAAPI_VLD: return GST_VAAPI_ENTRYPOINT_VLD;
- case PIX_FMT_VAAPI_IDCT: return GST_VAAPI_ENTRYPOINT_IDCT;
- case PIX_FMT_VAAPI_MOCO: return GST_VAAPI_ENTRYPOINT_MOCO;
- default: break;
- }
- return 0;
-}
-
-/** Finds a suitable profile from FFmpeg context */
-static GstVaapiProfile
-get_profile(AVCodecContext *avctx, GstVaapiEntrypoint entrypoint)
-{
- GstVaapiContextFfmpeg * const vactx = avctx->hwaccel_context;
- GstVaapiDisplay *display;
- GstVaapiProfile profiles[4];
- guint i, n_profiles = 0;
-
-#define ADD_PROFILE(profile) do { \
- profiles[n_profiles++] = GST_VAAPI_PROFILE_##profile; \
- } while (0)
-
- switch (avctx->codec_id) {
- case CODEC_ID_MPEG1VIDEO:
- ADD_PROFILE(MPEG1);
- break;
- case CODEC_ID_MPEG2VIDEO:
- ADD_PROFILE(MPEG2_MAIN);
- ADD_PROFILE(MPEG2_SIMPLE);
- break;
- case CODEC_ID_H263:
- ADD_PROFILE(H263_BASELINE);
- /* fall-through */
- case CODEC_ID_MPEG4:
- ADD_PROFILE(MPEG4_MAIN);
- ADD_PROFILE(MPEG4_ADVANCED_SIMPLE);
- ADD_PROFILE(MPEG4_SIMPLE);
- break;
- case CODEC_ID_H264:
- if (avctx->profile == 66) /* baseline */
- ADD_PROFILE(H264_BASELINE);
- else {
- if (avctx->profile == 77) /* main */
- ADD_PROFILE(H264_MAIN);
- ADD_PROFILE(H264_HIGH);
- }
- break;
- case CODEC_ID_WMV3:
- if (avctx->profile == 0) /* simple */
- ADD_PROFILE(VC1_SIMPLE);
- ADD_PROFILE(VC1_MAIN);
- break;
- case CODEC_ID_VC1:
- ADD_PROFILE(VC1_ADVANCED);
- break;
- default:
- break;
- }
-
-#undef ADD_PROFILE
-
- display = GST_VAAPI_DECODER_DISPLAY(vactx->decoder);
- if (!display)
- return 0;
-
- for (i = 0; i < n_profiles; i++)
- if (gst_vaapi_display_has_decoder(display, profiles[i], entrypoint))
- return profiles[i];
- return 0;
-}
-
-/** Ensures VA context is correctly set up for the current FFmpeg context */
-static GstVaapiContext *
-get_context(AVCodecContext *avctx, AVFrame *pic)
-{
- GstVaapiContextFfmpeg * const vactx = avctx->hwaccel_context;
- GstVaapiDecoder * const decoder = GST_VAAPI_DECODER(vactx->decoder);
- GstVaapiDisplay *display;
- GstVaapiContext *context;
- gboolean success;
-
- if (!avctx->coded_width || !avctx->coded_height)
- return NULL;
-
- gst_vaapi_decoder_set_framerate(
- decoder,
- avctx->time_base.den / avctx->ticks_per_frame,
- avctx->time_base.num
- );
-
- gst_vaapi_decoder_set_pixel_aspect_ratio(
- decoder,
- avctx->sample_aspect_ratio.num,
- avctx->sample_aspect_ratio.den
- );
-
- gst_vaapi_decoder_set_interlaced(decoder, !!pic->interlaced_frame);
-
- success = gst_vaapi_decoder_ensure_context(
- decoder,
- vactx->profile,
- vactx->entrypoint,
- avctx->coded_width,
- avctx->coded_height
- );
- if (!success) {
- GST_DEBUG("failed to reset VA context:");
- GST_DEBUG(" profile 0x%08x", vactx->profile);
- GST_DEBUG(" entrypoint %d", vactx->entrypoint);
- GST_DEBUG(" surface size %dx%d", avctx->width, avctx->height);
- return NULL;
- }
- display = GST_VAAPI_DECODER_DISPLAY(decoder);
- context = GST_VAAPI_DECODER_CONTEXT(decoder);
- vactx->base.display = GST_VAAPI_DISPLAY_VADISPLAY(display);
- vactx->base.context_id = GST_VAAPI_OBJECT_ID(context);
- return context;
-}
-
-/** Sets AVCodecContext.extradata with additional codec data */
-static gboolean
-set_codec_data(AVCodecContext *avctx, const guchar *buf, guint buf_size)
-{
- av_freep(&avctx->extradata);
- avctx->extradata_size = 0;
- if (!buf || buf_size < 1)
- return TRUE;
-
- avctx->extradata = av_malloc(buf_size + FF_INPUT_BUFFER_PADDING_SIZE);
- if (!avctx->extradata)
- return FALSE;
- avctx->extradata_size = buf_size;
- memcpy(avctx->extradata, buf, buf_size);
- memset(avctx->extradata + buf_size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
- return TRUE;
-}
-
-/** AVCodecContext.get_format() implementation */
-static enum PixelFormat
-gst_vaapi_decoder_ffmpeg_get_format(AVCodecContext *avctx, const enum PixelFormat *fmt)
-{
- GstVaapiContextFfmpeg * const vactx = avctx->hwaccel_context;
- GstVaapiProfile profile;
- GstVaapiEntrypoint entrypoint;
- guint i;
-
- /* XXX: only VLD entrypoint is supported at this time */
- for (i = 0; fmt[i] != PIX_FMT_NONE; i++) {
- entrypoint = get_entrypoint(fmt[i]);
- if (entrypoint != GST_VAAPI_ENTRYPOINT_VLD)
- continue;
-
- profile = get_profile(avctx, entrypoint);
- if (profile) {
- vactx->profile = profile;
- vactx->entrypoint = entrypoint;
- return fmt[i];
- }
- }
- return PIX_FMT_NONE;
-}
-
-/** AVCodecContext.get_buffer() implementation */
-static int
-gst_vaapi_decoder_ffmpeg_get_buffer(AVCodecContext *avctx, AVFrame *pic)
-{
- GstVaapiContextFfmpeg * const vactx = avctx->hwaccel_context;
- GstVaapiContext *context;
- GstVaapiSurface *surface;
- GstVaapiSurfaceProxy *proxy;
- GstVaapiID surface_id;
-
- context = get_context(avctx, pic);
- if (!context)
- return -1;
-
- surface = gst_vaapi_context_get_surface(context);
- if (!surface) {
- GST_DEBUG("failed to get a free VA surface");
- return -1;
- }
-
- proxy = gst_vaapi_surface_proxy_new(context, surface);
- if (!proxy) {
- GST_DEBUG("failed to create proxy surface");
- gst_vaapi_context_put_surface(context, surface);
- return -1;
- }
-
- surface_id = GST_VAAPI_OBJECT_ID(surface);
- GST_DEBUG("surface %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS(surface_id));
-
- pic->type = FF_BUFFER_TYPE_USER;
- pic->age = 1;
- pic->data[0] = (uint8_t *)proxy;
- pic->data[1] = NULL;
- pic->data[2] = NULL;
- pic->data[3] = (uint8_t *)(uintptr_t)surface_id;
- pic->linesize[0] = 0;
- pic->linesize[1] = 0;
- pic->linesize[2] = 0;
- pic->linesize[3] = 0;
- pic->pts = vactx->decoder->priv->in_timestamp;
- return 0;
-}
-
-/** AVCodecContext.reget_buffer() implementation */
-static int
-gst_vaapi_decoder_ffmpeg_reget_buffer(AVCodecContext *avctx, AVFrame *pic)
-{
- GST_DEBUG("UNIMPLEMENTED");
- return -1;
-}
-
-/** AVCodecContext.release_buffer() implementation */
-static void
-gst_vaapi_decoder_ffmpeg_release_buffer(AVCodecContext *avctx, AVFrame *pic)
-{
- GstVaapiSurfaceProxy * const proxy = GST_VAAPI_SURFACE_PROXY(pic->data[0]);
- GstVaapiID surface_id = GST_VAAPI_ID(GPOINTER_TO_UINT(pic->data[3]));
-
- GST_DEBUG("surface %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS(surface_id));
-
- g_object_unref(proxy);
-
- pic->data[0] = NULL;
- pic->data[1] = NULL;
- pic->data[2] = NULL;
- pic->data[3] = NULL;
-}
-
-static void
-gst_vaapi_decoder_ffmpeg_close(GstVaapiDecoderFfmpeg *ffdecoder)
-{
- GstVaapiDecoderFfmpegPrivate * const priv = ffdecoder->priv;
-
- if (priv->avctx) {
- if (priv->is_opened) {
- avcodec_close(priv->avctx);
- priv->is_opened = FALSE;
- }
- av_freep(&priv->avctx->extradata);
- priv->avctx->extradata_size = 0;
- }
-
- if (priv->pctx) {
- av_parser_close(priv->pctx);
- priv->pctx = NULL;
- }
-}
-
-static gboolean
-gst_vaapi_decoder_ffmpeg_open(GstVaapiDecoderFfmpeg *ffdecoder, GstBuffer *buffer)
-{
- GstVaapiDecoderFfmpegPrivate * const priv = ffdecoder->priv;
- GstVaapiDisplay * const display = GST_VAAPI_DECODER_DISPLAY(ffdecoder);
- GstBuffer * const codec_data = GST_VAAPI_DECODER_CODEC_DATA(ffdecoder);
- GstVaapiCodec codec = GST_VAAPI_DECODER_CODEC(ffdecoder);
- enum CodecID codec_id;
- AVCodec *ffcodec;
- gboolean try_parser, need_parser;
- int ret;
-
- gst_vaapi_decoder_ffmpeg_close(ffdecoder);
-
- if (codec_data) {
- const guchar *data = GST_BUFFER_DATA(codec_data);
- const guint size = GST_BUFFER_SIZE(codec_data);
- if (!set_codec_data(priv->avctx, data, size))
- return FALSE;
- }
-
- codec_id = get_codec_id_from_codec(codec);
- if (codec_id == CODEC_ID_NONE)
- return FALSE;
-
- ffcodec = avcodec_find_decoder(codec_id);
- if (!ffcodec)
- return FALSE;
-
- switch (codec_id) {
- case CODEC_ID_H264:
- /* For AVC1 formats, sequence headers are in extradata and
- input encoded buffers represent the whole NAL unit */
- try_parser = priv->avctx->extradata_size == 0;
- need_parser = try_parser;
- break;
- case CODEC_ID_WMV3:
- /* There is no WMV3 parser in FFmpeg */
- try_parser = FALSE;
- need_parser = FALSE;
- break;
- case CODEC_ID_VC1:
- /* For VC-1, sequence headers ae in extradata and input encoded
- buffers represent the whole slice */
- try_parser = priv->avctx->extradata_size == 0;
- need_parser = FALSE;
- break;
- default:
- try_parser = TRUE;
- need_parser = TRUE;
- break;
- }
-
- if (try_parser) {
- priv->pctx = av_parser_init(codec_id);
- if (!priv->pctx && need_parser)
- return FALSE;
- }
-
- /* XXX: av_find_stream_info() does this and some codecs really
- want hard an extradata buffer for initialization (e.g. VC-1) */
- if (!priv->avctx->extradata && priv->pctx && priv->pctx->parser->split) {
- const guchar *buf = GST_BUFFER_DATA(buffer);
- guint buf_size = GST_BUFFER_SIZE(buffer);
- buf_size = priv->pctx->parser->split(priv->avctx, buf, buf_size);
- if (buf_size > 0 && !set_codec_data(priv->avctx, buf, buf_size))
- return FALSE;
- }
-
- if (priv->pctx && !need_parser) {
- av_parser_close(priv->pctx);
- priv->pctx = NULL;
- }
-
- /* Use size information from the demuxer, whenever available */
- priv->avctx->coded_width = GST_VAAPI_DECODER_WIDTH(ffdecoder);
- priv->avctx->coded_height = GST_VAAPI_DECODER_HEIGHT(ffdecoder);
-
- GST_VAAPI_DISPLAY_LOCK(display);
- ret = avcodec_open(priv->avctx, ffcodec);
- GST_VAAPI_DISPLAY_UNLOCK(display);
- if (ret < 0)
- return FALSE;
- return TRUE;
-}
-
-static void
-gst_vaapi_decoder_ffmpeg_destroy(GstVaapiDecoderFfmpeg *ffdecoder)
-{
- GstVaapiDecoderFfmpegPrivate * const priv = ffdecoder->priv;
-
- gst_vaapi_decoder_ffmpeg_close(ffdecoder);
-
- if (priv->vactx) {
- g_free(priv->vactx);
- priv->vactx = NULL;
- }
-
- av_freep(&priv->avctx);
- av_freep(&priv->frame);
-}
-
-static gboolean
-gst_vaapi_decoder_ffmpeg_create(GstVaapiDecoderFfmpeg *ffdecoder)
-{
- GstVaapiDecoderFfmpegPrivate * const priv = ffdecoder->priv;
-
- if (!GST_VAAPI_DECODER_CODEC(ffdecoder))
- return FALSE;
-
- if (!priv->frame) {
- priv->frame = avcodec_alloc_frame();
- if (!priv->frame)
- return FALSE;
- }
-
- if (!priv->avctx) {
- priv->avctx = avcodec_alloc_context();
- if (!priv->avctx)
- return FALSE;
- }
-
- if (!priv->vactx) {
- priv->vactx = g_new(GstVaapiContextFfmpeg, 1);
- if (!priv->vactx)
- return FALSE;
- }
- memset(&priv->vactx->base, 0, sizeof(priv->vactx->base));
- priv->vactx->decoder = ffdecoder;
-
- priv->avctx->hwaccel_context = priv->vactx;
- priv->avctx->get_format = gst_vaapi_decoder_ffmpeg_get_format;
- priv->avctx->get_buffer = gst_vaapi_decoder_ffmpeg_get_buffer;
- priv->avctx->reget_buffer = gst_vaapi_decoder_ffmpeg_reget_buffer;
- priv->avctx->release_buffer = gst_vaapi_decoder_ffmpeg_release_buffer;
- priv->avctx->thread_count = 1;
- priv->avctx->draw_horiz_band = NULL;
- priv->avctx->slice_flags = SLICE_FLAG_CODED_ORDER|SLICE_FLAG_ALLOW_FIELD;
- return TRUE;
-}
-
-static GstVaapiDecoderStatus
-render_frame(GstVaapiDecoderFfmpeg *decoder, AVFrame *frame)
-{
- GstVaapiDecoder * const base_decoder = GST_VAAPI_DECODER(decoder);
- GstVaapiSurfaceProxy *proxy;
-
- proxy = GST_VAAPI_SURFACE_PROXY(frame->data[0]);
- if (!proxy)
- return GST_VAAPI_DECODER_STATUS_ERROR_INVALID_SURFACE;
-
- gst_vaapi_surface_proxy_set_timestamp(proxy, frame->pts);
- gst_vaapi_surface_proxy_set_interlaced(proxy, !!frame->interlaced_frame);
- gst_vaapi_surface_proxy_set_tff(proxy, frame->top_field_first);
- gst_vaapi_decoder_push_surface_proxy(base_decoder, g_object_ref(proxy));
- return GST_VAAPI_DECODER_STATUS_SUCCESS;
-}
-
-static GstVaapiDecoderStatus
-decode_frame(GstVaapiDecoderFfmpeg *ffdecoder, guchar *buf, guint buf_size)
-{
- GstVaapiDecoderFfmpegPrivate * const priv = ffdecoder->priv;
- GstVaapiDisplay * const display = GST_VAAPI_DECODER_DISPLAY(ffdecoder);
- int bytes_read, got_picture = 0;
- AVPacket pkt;
-
- av_init_packet(&pkt);
- pkt.data = buf;
- pkt.size = buf_size;
-
- GST_VAAPI_DISPLAY_LOCK(display);
- bytes_read = avcodec_decode_video2(
- priv->avctx,
- priv->frame,
- &got_picture,
- &pkt
- );
- GST_VAAPI_DISPLAY_UNLOCK(display);
- if (!got_picture)
- return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
- if (bytes_read < 0)
- return GST_VAAPI_DECODER_STATUS_ERROR_UNKNOWN;
-
- return render_frame(ffdecoder, priv->frame);
-}
-
-GstVaapiDecoderStatus
-gst_vaapi_decoder_ffmpeg_decode(GstVaapiDecoder *decoder, GstBuffer *buffer)
-{
- GstVaapiDecoderFfmpeg * const ffdecoder = GST_VAAPI_DECODER_FFMPEG(decoder);
- GstVaapiDecoderFfmpegPrivate * const priv = ffdecoder->priv;
- GstClockTime inbuf_ts;
- guchar *outbuf;
- gint inbuf_ofs, inbuf_size, outbuf_size;
- gboolean got_frame;
-
- g_return_val_if_fail(priv->is_constructed,
- GST_VAAPI_DECODER_STATUS_ERROR_INIT_FAILED);
-
- if (!priv->is_opened) {
- priv->is_opened = gst_vaapi_decoder_ffmpeg_open(ffdecoder, buffer);
- if (!priv->is_opened)
- return GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CODEC;
- }
-
- inbuf_ofs = 0;
- inbuf_size = GST_BUFFER_SIZE(buffer);
- inbuf_ts = GST_BUFFER_TIMESTAMP(buffer);
-
- if (priv->pctx) {
- do {
- int parsed_size;
- parsed_size = av_parser_parse2(
- priv->pctx,
- priv->avctx,
- &outbuf, &outbuf_size,
- GST_BUFFER_DATA(buffer) + inbuf_ofs, inbuf_size,
- inbuf_ts, inbuf_ts,
- AV_NOPTS_VALUE
- );
- got_frame = outbuf && outbuf_size > 0;
-
- if (parsed_size > 0) {
- inbuf_ofs += parsed_size;
- inbuf_size -= parsed_size;
- }
- } while (!got_frame && inbuf_size > 0);
- inbuf_ts = priv->pctx->pts;
- }
- else {
- outbuf = GST_BUFFER_DATA(buffer);
- outbuf_size = inbuf_size;
- got_frame = outbuf && outbuf_size > 0;
- inbuf_ofs = inbuf_size;
- inbuf_size = 0;
- }
-
- if (inbuf_size > 0 &&
- !gst_vaapi_decoder_push_buffer_sub(decoder, buffer,
- inbuf_ofs, inbuf_size))
- return GST_VAAPI_DECODER_STATUS_ERROR_ALLOCATION_FAILED;
-
- if (!got_frame && !GST_BUFFER_IS_EOS(buffer))
- return GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA;
-
- priv->in_timestamp = inbuf_ts;
- return decode_frame(ffdecoder, outbuf, outbuf_size);
-}
-
-static void
-gst_vaapi_decoder_ffmpeg_finalize(GObject *object)
-{
- GstVaapiDecoderFfmpeg * const ffdecoder = GST_VAAPI_DECODER_FFMPEG(object);
-
- gst_vaapi_decoder_ffmpeg_destroy(ffdecoder);
-
- G_OBJECT_CLASS(gst_vaapi_decoder_ffmpeg_parent_class)->finalize(object);
-}
-
-static void
-gst_vaapi_decoder_ffmpeg_constructed(GObject *object)
-{
- GstVaapiDecoderFfmpeg * const ffdecoder = GST_VAAPI_DECODER_FFMPEG(object);
- GstVaapiDecoderFfmpegPrivate * const priv = ffdecoder->priv;
- GObjectClass *parent_class;
-
- parent_class = G_OBJECT_CLASS(gst_vaapi_decoder_ffmpeg_parent_class);
- if (parent_class->constructed)
- parent_class->constructed(object);
-
- priv->is_constructed = gst_vaapi_decoder_ffmpeg_create(ffdecoder);
-}
-
-static void
-gst_vaapi_decoder_ffmpeg_class_init(GstVaapiDecoderFfmpegClass *klass)
-{
- GObjectClass * const object_class = G_OBJECT_CLASS(klass);
- GstVaapiDecoderClass * const decoder_class = GST_VAAPI_DECODER_CLASS(klass);
-
- g_type_class_add_private(klass, sizeof(GstVaapiDecoderFfmpegPrivate));
-
- object_class->finalize = gst_vaapi_decoder_ffmpeg_finalize;
- object_class->constructed = gst_vaapi_decoder_ffmpeg_constructed;
-
- decoder_class->decode = gst_vaapi_decoder_ffmpeg_decode;
-}
-
-static gpointer
-gst_vaapi_decoder_ffmpeg_init_once_cb(gpointer user_data)
-{
- avcodec_register_all();
- return NULL;
-}
-
-static inline void
-gst_vaapi_decoder_ffmpeg_init_once(void)
-{
- static GOnce once = G_ONCE_INIT;
-
- g_once(&once, gst_vaapi_decoder_ffmpeg_init_once_cb, NULL);
-}
-
-static void
-gst_vaapi_decoder_ffmpeg_init(GstVaapiDecoderFfmpeg *decoder)
-{
- GstVaapiDecoderFfmpegPrivate *priv;
-
- gst_vaapi_decoder_ffmpeg_init_once();
-
- priv = GST_VAAPI_DECODER_FFMPEG_GET_PRIVATE(decoder);
- decoder->priv = priv;
- priv->frame = NULL;
- priv->pctx = NULL;
- priv->avctx = NULL;
- priv->vactx = NULL;
- priv->is_constructed = FALSE;
- priv->is_opened = FALSE;
-}
-
-/**
- * gst_vaapi_decoder_ffmpeg_new:
- * @display: a #GstVaapiDisplay
- * @caps: a #GstCaps holding codec information
- *
- * Creates a new #GstVaapiDecoder based on FFmpeg where the codec is
- * determined from @caps. The @caps can hold extra information like
- * codec-data and pictured coded size.
- *
- * Return value: the newly allocated #GstVaapiDecoder object
- */
-GstVaapiDecoder *
-gst_vaapi_decoder_ffmpeg_new(GstVaapiDisplay *display, GstCaps *caps)
-{
- GstVaapiDecoderFfmpeg *ffdecoder;
-
- g_return_val_if_fail(GST_VAAPI_IS_DISPLAY(display), NULL);
- g_return_val_if_fail(GST_IS_CAPS(caps), NULL);
-
- ffdecoder = g_object_new(
- GST_VAAPI_TYPE_DECODER_FFMPEG,
- "display", display,
- "caps", caps,
- NULL
- );
- if (!ffdecoder->priv->is_constructed) {
- g_object_unref(ffdecoder);
- return NULL;
- }
- return GST_VAAPI_DECODER_CAST(ffdecoder);
-}
projects / platform / upstream / gstreamer.git / commitdiff