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-rw-r--r--video/decode/vd_lavc.c857
1 files changed, 857 insertions, 0 deletions
diff --git a/video/decode/vd_lavc.c b/video/decode/vd_lavc.c
new file mode 100644
index 0000000000..e078de4419
--- /dev/null
+++ b/video/decode/vd_lavc.c
@@ -0,0 +1,857 @@
+/*
+ * This file is part of MPlayer.
+ *
+ * MPlayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <time.h>
+#include <stdbool.h>
+#include <sys/types.h>
+
+#include <libavutil/common.h>
+#include <libavutil/opt.h>
+#include <libavutil/intreadwrite.h>
+
+#include "talloc.h"
+#include "config.h"
+#include "mp_msg.h"
+#include "options.h"
+#include "av_opts.h"
+
+#include "mpbswap.h"
+#include "fmt-conversion.h"
+
+#include "vd.h"
+#include "img_format.h"
+#include "libmpdemux/stheader.h"
+#include "libmpdemux/demux_packet.h"
+#include "codec-cfg.h"
+#include "osdep/numcores.h"
+#include "libvo/csputils.h"
+
+static const vd_info_t info = {
+ "libavcodec video codecs",
+ "ffmpeg",
+ "",
+ "",
+ "native codecs",
+ .print_name = "libavcodec",
+};
+
+#include "libavcodec/avcodec.h"
+
+#if AVPALETTE_SIZE > 1024
+#error palette too large, adapt libmpcodecs/vf.c:vf_get_image
+#endif
+
+typedef struct {
+ AVCodecContext *avctx;
+ AVFrame *pic;
+ enum PixelFormat pix_fmt;
+ int do_slices;
+ int do_dr1;
+ int vo_initialized;
+ int best_csp;
+ int qp_stat[32];
+ double qp_sum;
+ double inv_qp_sum;
+ int ip_count;
+ int b_count;
+ AVRational last_sample_aspect_ratio;
+ enum AVDiscard skip_frame;
+} vd_ffmpeg_ctx;
+
+#include "m_option.h"
+
+static int get_buffer(AVCodecContext *avctx, AVFrame *pic);
+static void release_buffer(AVCodecContext *avctx, AVFrame *pic);
+static void draw_slice(struct AVCodecContext *s, const AVFrame *src,
+ int offset[4], int y, int type, int height);
+
+static enum PixelFormat get_format(struct AVCodecContext *avctx,
+ const enum PixelFormat *pix_fmt);
+static void uninit(struct sh_video *sh);
+
+const m_option_t lavc_decode_opts_conf[] = {
+ OPT_INTRANGE("bug", lavc_param.workaround_bugs, 0, -1, 999999),
+ OPT_FLAG_ON("gray", lavc_param.gray, 0),
+ OPT_INTRANGE("idct", lavc_param.idct_algo, 0, 0, 99),
+ OPT_INTRANGE("ec", lavc_param.error_concealment, 0, 0, 99),
+ OPT_FLAG_ON("vstats", lavc_param.vstats, 0),
+ OPT_INTRANGE("debug", lavc_param.debug, 0, 0, 9999999),
+ OPT_INTRANGE("vismv", lavc_param.vismv, 0, 0, 9999999),
+ OPT_INTRANGE("st", lavc_param.skip_top, 0, 0, 999),
+ OPT_INTRANGE("sb", lavc_param.skip_bottom, 0, 0, 999),
+ OPT_FLAG_CONSTANTS("fast", lavc_param.fast, 0, 0, CODEC_FLAG2_FAST),
+ OPT_STRING("lowres", lavc_param.lowres_str, 0),
+ OPT_STRING("skiploopfilter", lavc_param.skip_loop_filter_str, 0),
+ OPT_STRING("skipidct", lavc_param.skip_idct_str, 0),
+ OPT_STRING("skipframe", lavc_param.skip_frame_str, 0),
+ OPT_INTRANGE("threads", lavc_param.threads, 0, 0, 16),
+ OPT_FLAG_CONSTANTS("bitexact", lavc_param.bitexact, 0, 0, CODEC_FLAG_BITEXACT),
+ OPT_STRING("o", lavc_param.avopt, 0),
+ {NULL, NULL, 0, 0, 0, 0, NULL}
+};
+
+static enum AVDiscard str2AVDiscard(char *str)
+{
+ if (!str) return AVDISCARD_DEFAULT;
+ if (strcasecmp(str, "none" ) == 0) return AVDISCARD_NONE;
+ if (strcasecmp(str, "default") == 0) return AVDISCARD_DEFAULT;
+ if (strcasecmp(str, "nonref" ) == 0) return AVDISCARD_NONREF;
+ if (strcasecmp(str, "bidir" ) == 0) return AVDISCARD_BIDIR;
+ if (strcasecmp(str, "nonkey" ) == 0) return AVDISCARD_NONKEY;
+ if (strcasecmp(str, "all" ) == 0) return AVDISCARD_ALL;
+ mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Unknown discard value %s\n", str);
+ return AVDISCARD_DEFAULT;
+}
+
+static int init(sh_video_t *sh)
+{
+ struct lavc_param *lavc_param = &sh->opts->lavc_param;
+ AVCodecContext *avctx;
+ vd_ffmpeg_ctx *ctx;
+ AVCodec *lavc_codec = NULL;
+ enum PixelFormat rawfmt = PIX_FMT_NONE;
+ int do_vis_debug = lavc_param->vismv ||
+ (lavc_param->debug & (FF_DEBUG_VIS_MB_TYPE | FF_DEBUG_VIS_QP));
+
+ ctx = sh->context = talloc_zero(NULL, vd_ffmpeg_ctx);
+
+ if (sh->codec->dll) {
+ lavc_codec = avcodec_find_decoder_by_name(sh->codec->dll);
+ if (!lavc_codec) {
+ mp_tmsg(MSGT_DECVIDEO, MSGL_ERR,
+ "Cannot find codec '%s' in libavcodec...\n",
+ sh->codec->dll);
+ uninit(sh);
+ return 0;
+ }
+ } else if (sh->libav_codec_id) {
+ lavc_codec = avcodec_find_decoder(sh->libav_codec_id);
+ if (!lavc_codec) {
+ mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "Libavcodec has no decoder "
+ "for this codec\n");
+ uninit(sh);
+ return 0;
+ }
+ } else if (!IMGFMT_IS_HWACCEL(sh->format)) {
+ rawfmt = imgfmt2pixfmt(sh->format);
+ if (rawfmt != PIX_FMT_NONE)
+ lavc_codec = avcodec_find_decoder_by_name("rawvideo");
+ }
+ if (!lavc_codec) {
+ uninit(sh);
+ return 0;
+ }
+
+ sh->codecname = lavc_codec->long_name;
+ if (!sh->codecname)
+ sh->codecname = lavc_codec->name;
+
+ if (sh->opts->vd_use_slices
+ && (lavc_codec->capabilities & CODEC_CAP_DRAW_HORIZ_BAND)
+ && !do_vis_debug)
+ ctx->do_slices = 1;
+
+ if (lavc_codec->capabilities & CODEC_CAP_DR1 && !do_vis_debug
+ && lavc_codec->id != CODEC_ID_H264
+ && lavc_codec->id != CODEC_ID_INTERPLAY_VIDEO
+ && lavc_codec->id != CODEC_ID_ROQ && lavc_codec->id != CODEC_ID_VP8
+ && lavc_codec->id != CODEC_ID_LAGARITH)
+ ctx->do_dr1 = sh->opts->vd_use_dr1;
+ ctx->ip_count = ctx->b_count = 0;
+
+ ctx->pic = avcodec_alloc_frame();
+ ctx->avctx = avcodec_alloc_context3(lavc_codec);
+ avctx = ctx->avctx;
+ avctx->opaque = sh;
+ avctx->codec_type = AVMEDIA_TYPE_VIDEO;
+ avctx->codec_id = lavc_codec->id;
+
+ if (lavc_codec->capabilities & CODEC_CAP_HWACCEL // XvMC
+ || lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) {
+ ctx->do_dr1 = true;
+ ctx->do_slices = true;
+ lavc_param->threads = 1;
+ avctx->get_format = get_format;
+ avctx->get_buffer = get_buffer;
+ avctx->release_buffer = release_buffer;
+ avctx->reget_buffer = get_buffer;
+ avctx->draw_horiz_band = draw_slice;
+ if (lavc_codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)
+ mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] VDPAU hardware "
+ "decoding.\n");
+ avctx->slice_flags = SLICE_FLAG_CODED_ORDER | SLICE_FLAG_ALLOW_FIELD;
+ }
+
+ if (lavc_param->threads == 0) {
+ int threads = default_thread_count();
+ if (threads < 1) {
+ mp_msg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] Could not determine "
+ "thread count to use, defaulting to 1.\n");
+ threads = 1;
+ }
+ threads = FFMIN(threads, 16);
+ lavc_param->threads = threads;
+ }
+ /* Our get_buffer and draw_horiz_band callbacks are not safe to call
+ * from other threads. */
+ if (lavc_param->threads > 1) {
+ ctx->do_dr1 = false;
+ ctx->do_slices = false;
+ mp_tmsg(MSGT_DECVIDEO, MSGL_V, "Asking decoder to use "
+ "%d threads if supported.\n", lavc_param->threads);
+ }
+
+ if (ctx->do_dr1) {
+ avctx->flags |= CODEC_FLAG_EMU_EDGE;
+ avctx->get_buffer = get_buffer;
+ avctx->release_buffer = release_buffer;
+ avctx->reget_buffer = get_buffer;
+ }
+
+ avctx->flags |= lavc_param->bitexact;
+
+ avctx->coded_width = sh->disp_w;
+ avctx->coded_height = sh->disp_h;
+ avctx->workaround_bugs = lavc_param->workaround_bugs;
+ if (lavc_param->gray)
+ avctx->flags |= CODEC_FLAG_GRAY;
+ avctx->flags2 |= lavc_param->fast;
+ if (rawfmt == PIX_FMT_NONE) {
+ avctx->codec_tag = sh->format;
+ } else {
+ avctx->pix_fmt = rawfmt;
+ }
+ if (sh->gsh->lavf_codec_tag)
+ avctx->codec_tag = sh->gsh->lavf_codec_tag;
+ avctx->stream_codec_tag = sh->video.fccHandler;
+ avctx->idct_algo = lavc_param->idct_algo;
+ avctx->error_concealment = lavc_param->error_concealment;
+ avctx->debug = lavc_param->debug;
+ if (lavc_param->debug)
+ av_log_set_level(AV_LOG_DEBUG);
+ avctx->debug_mv = lavc_param->vismv;
+ avctx->skip_top = lavc_param->skip_top;
+ avctx->skip_bottom = lavc_param->skip_bottom;
+ if (lavc_param->lowres_str != NULL) {
+ int lowres, lowres_w;
+ sscanf(lavc_param->lowres_str, "%d,%d", &lowres, &lowres_w);
+ if (lowres < 1 || lowres > 16 ||
+ lowres_w > 0 && avctx->width < lowres_w)
+ lowres = 0;
+ avctx->lowres = lowres;
+ }
+ avctx->skip_loop_filter = str2AVDiscard(lavc_param->skip_loop_filter_str);
+ avctx->skip_idct = str2AVDiscard(lavc_param->skip_idct_str);
+ avctx->skip_frame = str2AVDiscard(lavc_param->skip_frame_str);
+
+ if (lavc_param->avopt) {
+ if (parse_avopts(avctx, lavc_param->avopt) < 0) {
+ mp_msg(MSGT_DECVIDEO, MSGL_ERR,
+ "Your options /%s/ look like gibberish to me pal\n",
+ lavc_param->avopt);
+ uninit(sh);
+ return 0;
+ }
+ }
+
+ // Do this after the above avopt handling in case it changes values
+ ctx->skip_frame = avctx->skip_frame;
+
+ mp_dbg(MSGT_DECVIDEO, MSGL_DBG2,
+ "libavcodec.size: %d x %d\n", avctx->width, avctx->height);
+ switch (sh->format) {
+ case mmioFOURCC('S','V','Q','3'):
+ case mmioFOURCC('A','V','R','n'):
+ case mmioFOURCC('M','J','P','G'):
+ /* AVRn stores huffman table in AVI header */
+ /* Pegasus MJPEG stores it also in AVI header, but it uses the common
+ * MJPG fourcc :( */
+ if (!sh->bih || sh->bih->biSize <= sizeof(*sh->bih))
+ break;
+ av_opt_set_int(avctx, "extern_huff", 1, AV_OPT_SEARCH_CHILDREN);
+ avctx->extradata_size = sh->bih->biSize - sizeof(*sh->bih);
+ avctx->extradata = av_mallocz(avctx->extradata_size +
+ FF_INPUT_BUFFER_PADDING_SIZE);
+ memcpy(avctx->extradata, sh->bih + 1, avctx->extradata_size);
+ break;
+
+ case mmioFOURCC('R','V','1','0'):
+ case mmioFOURCC('R','V','1','3'):
+ case mmioFOURCC('R','V','2','0'):
+ case mmioFOURCC('R','V','3','0'):
+ case mmioFOURCC('R','V','4','0'):
+ if (sh->bih->biSize < sizeof(*sh->bih) + 8) {
+ // only 1 packet per frame & sub_id from fourcc
+ avctx->extradata_size = 8;
+ avctx->extradata = av_mallocz(avctx->extradata_size +
+ FF_INPUT_BUFFER_PADDING_SIZE);
+ ((uint32_t *)avctx->extradata)[0] = 0;
+ ((uint32_t *)avctx->extradata)[1] =
+ sh->format == mmioFOURCC('R','V','1','3') ?
+ 0x10003001 : 0x10000000;
+ } else {
+ // has extra slice header (demux_rm or rm->avi streamcopy)
+ avctx->extradata_size = sh->bih->biSize - sizeof(*sh->bih);
+ avctx->extradata = av_mallocz(avctx->extradata_size +
+ FF_INPUT_BUFFER_PADDING_SIZE);
+ memcpy(avctx->extradata, sh->bih + 1, avctx->extradata_size);
+ }
+ break;
+
+ default:
+ if (!sh->bih || sh->bih->biSize <= sizeof(*sh->bih))
+ break;
+ avctx->extradata_size = sh->bih->biSize - sizeof(*sh->bih);
+ avctx->extradata = av_mallocz(avctx->extradata_size +
+ FF_INPUT_BUFFER_PADDING_SIZE);
+ memcpy(avctx->extradata, sh->bih + 1, avctx->extradata_size);
+ break;
+ }
+
+ if (sh->bih)
+ avctx->bits_per_coded_sample = sh->bih->biBitCount;
+
+ avctx->thread_count = lavc_param->threads;
+
+ /* open it */
+ if (avcodec_open2(avctx, lavc_codec, NULL) < 0) {
+ mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Could not open codec.\n");
+ uninit(sh);
+ return 0;
+ }
+ return 1;
+}
+
+static void uninit(sh_video_t *sh)
+{
+ vd_ffmpeg_ctx *ctx = sh->context;
+ AVCodecContext *avctx = ctx->avctx;
+
+ sh->codecname = NULL;
+ if (sh->opts->lavc_param.vstats && avctx->coded_frame) {
+ for (int i = 1; i < 32; i++)
+ mp_msg(MSGT_DECVIDEO, MSGL_INFO,
+ "QP: %d, count: %d\n", i, ctx->qp_stat[i]);
+ mp_tmsg(MSGT_DECVIDEO, MSGL_INFO, "[VD_FFMPEG] Arithmetic mean of QP: "
+ "%2.4f, Harmonic mean of QP: %2.4f\n",
+ ctx->qp_sum / avctx->coded_frame->coded_picture_number,
+ 1.0 / (ctx->inv_qp_sum / avctx->coded_frame->coded_picture_number));
+ }
+
+ if (avctx) {
+ if (avctx->codec && avcodec_close(avctx) < 0)
+ mp_tmsg(MSGT_DECVIDEO, MSGL_ERR, "Could not close codec.\n");
+
+ av_freep(&avctx->extradata);
+ av_freep(&avctx->slice_offset);
+ }
+
+ av_freep(&avctx);
+ avcodec_free_frame(&ctx->pic);
+ talloc_free(ctx);
+}
+
+static void draw_slice(struct AVCodecContext *s,
+ const AVFrame *src, int offset[4],
+ int y, int type, int height)
+{
+ sh_video_t *sh = s->opaque;
+ uint8_t *source[MP_MAX_PLANES] = {
+ src->data[0] + offset[0], src->data[1] + offset[1],
+ src->data[2] + offset[2]
+ };
+ int strides[MP_MAX_PLANES] = {
+ src->linesize[0], src->linesize[1], src->linesize[2]
+ };
+ if (height < 0) {
+ int i;
+ height = -height;
+ y -= height;
+ for (i = 0; i < MP_MAX_PLANES; i++) {
+ strides[i] = -strides[i];
+ source[i] -= strides[i];
+ }
+ }
+ if (y < sh->disp_h) {
+ height = FFMIN(height, sh->disp_h - y);
+ mpcodecs_draw_slice(sh, source, strides, sh->disp_w, height, 0, y);
+ }
+}
+
+
+static int init_vo(sh_video_t *sh, enum PixelFormat pix_fmt)
+{
+ vd_ffmpeg_ctx *ctx = sh->context;
+ AVCodecContext *avctx = ctx->avctx;
+ float aspect = av_q2d(avctx->sample_aspect_ratio) *
+ avctx->width / avctx->height;
+ int width, height;
+
+ width = avctx->width;
+ height = avctx->height;
+
+ /* Reconfiguring filter/VO chain may invalidate direct rendering buffers
+ * we have allocated for libavcodec (including the VDPAU HW decoding
+ * case). Is it guaranteed that the code below only triggers in a situation
+ * with no busy direct rendering buffers for reference frames?
+ */
+ if (av_cmp_q(avctx->sample_aspect_ratio, ctx->last_sample_aspect_ratio) ||
+ width != sh->disp_w || height != sh->disp_h ||
+ pix_fmt != ctx->pix_fmt || !ctx->vo_initialized) {
+ ctx->vo_initialized = 0;
+ mp_msg(MSGT_DECVIDEO, MSGL_V, "[ffmpeg] aspect_ratio: %f\n", aspect);
+
+ // Do not overwrite s->aspect on the first call, so that a container
+ // aspect if available is preferred.
+ // But set it even if the sample aspect did not change, since a
+ // resolution change can cause an aspect change even if the
+ // _sample_ aspect is unchanged.
+ if (sh->aspect == 0 || ctx->last_sample_aspect_ratio.den)
+ sh->aspect = aspect;
+ ctx->last_sample_aspect_ratio = avctx->sample_aspect_ratio;
+ sh->disp_w = width;
+ sh->disp_h = height;
+ ctx->pix_fmt = pix_fmt;
+ ctx->best_csp = pixfmt2imgfmt(pix_fmt);
+ const unsigned int *supported_fmts;
+ if (ctx->best_csp == IMGFMT_YV12)
+ supported_fmts = (const unsigned int[]){
+ IMGFMT_YV12, IMGFMT_I420, IMGFMT_IYUV, 0xffffffff
+ };
+ else if (ctx->best_csp == IMGFMT_422P)
+ supported_fmts = (const unsigned int[]){
+ IMGFMT_422P, IMGFMT_YV12, IMGFMT_I420, IMGFMT_IYUV, 0xffffffff
+ };
+ else
+ supported_fmts = (const unsigned int[]){ctx->best_csp, 0xffffffff};
+
+ sh->colorspace = avcol_spc_to_mp_csp(avctx->colorspace);
+ sh->color_range = avcol_range_to_mp_csp_levels(avctx->color_range);
+
+ if (!mpcodecs_config_vo(sh, sh->disp_w, sh->disp_h, supported_fmts,
+ ctx->best_csp))
+ return -1;
+ ctx->vo_initialized = 1;
+ }
+ return 0;
+}
+
+static int get_buffer(AVCodecContext *avctx, AVFrame *pic)
+{
+ sh_video_t *sh = avctx->opaque;
+ vd_ffmpeg_ctx *ctx = sh->context;
+ mp_image_t *mpi = NULL;
+ int flags = MP_IMGFLAG_ACCEPT_ALIGNED_STRIDE |
+ MP_IMGFLAG_PREFER_ALIGNED_STRIDE;
+ int type = MP_IMGTYPE_IPB;
+ int width = avctx->width;
+ int height = avctx->height;
+ // special case to handle reget_buffer without buffer hints
+ if (pic->opaque && pic->data[0] && !pic->buffer_hints)
+ return 0;
+ avcodec_align_dimensions(avctx, &width, &height);
+
+ if (pic->buffer_hints) {
+ mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "Buffer hints: %u\n",
+ pic->buffer_hints);
+ type = MP_IMGTYPE_TEMP;
+ if (pic->buffer_hints & FF_BUFFER_HINTS_READABLE)
+ flags |= MP_IMGFLAG_READABLE;
+ if (pic->buffer_hints & FF_BUFFER_HINTS_PRESERVE) {
+ type = MP_IMGTYPE_STATIC;
+ flags |= MP_IMGFLAG_PRESERVE;
+ }
+ if (pic->buffer_hints & FF_BUFFER_HINTS_REUSABLE) {
+ type = MP_IMGTYPE_STATIC;
+ flags |= MP_IMGFLAG_PRESERVE;
+ }
+ flags |= ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0;
+ mp_msg(MSGT_DECVIDEO, MSGL_DBG2,
+ type == MP_IMGTYPE_STATIC ? "using STATIC\n" : "using TEMP\n");
+ } else {
+ if (!pic->reference) {
+ ctx->b_count++;
+ flags |= ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0;
+ } else {
+ ctx->ip_count++;
+ flags |= MP_IMGFLAG_PRESERVE | MP_IMGFLAG_READABLE
+ | (ctx->do_slices ? MP_IMGFLAG_DRAW_CALLBACK : 0);
+ }
+ }
+
+ if (init_vo(sh, avctx->pix_fmt) < 0) {
+ avctx->release_buffer = avcodec_default_release_buffer;
+ avctx->get_buffer = avcodec_default_get_buffer;
+ avctx->reget_buffer = avcodec_default_reget_buffer;
+ if (pic->data[0])
+ release_buffer(avctx, pic);
+ return avctx->get_buffer(avctx, pic);
+ }
+
+ if (IMGFMT_IS_HWACCEL(ctx->best_csp))
+ type = MP_IMGTYPE_NUMBERED | (0xffff << 16);
+ else if (!pic->buffer_hints) {
+ if (ctx->b_count > 1 || ctx->ip_count > 2) {
+ mp_tmsg(MSGT_DECVIDEO, MSGL_WARN, "[VD_FFMPEG] DRI failure.\n");
+
+ ctx->do_dr1 = 0; //FIXME
+ avctx->get_buffer = avcodec_default_get_buffer;
+ avctx->reget_buffer = avcodec_default_reget_buffer;
+ if (pic->data[0])
+ release_buffer(avctx, pic);
+ return avctx->get_buffer(avctx, pic);
+ }
+
+ if (avctx->has_b_frames || ctx->b_count)
+ type = MP_IMGTYPE_IPB;
+ else
+ type = MP_IMGTYPE_IP;
+ mp_msg(MSGT_DECVIDEO, MSGL_DBG2,
+ type == MP_IMGTYPE_IPB ? "using IPB\n" : "using IP\n");
+ }
+
+ if (ctx->best_csp == IMGFMT_RGB8 || ctx->best_csp == IMGFMT_BGR8)
+ flags |= MP_IMGFLAG_RGB_PALETTE;
+ mpi = mpcodecs_get_image(sh, type, flags, width, height);
+ if (!mpi)
+ return -1;
+
+ // ok, let's see what did we get:
+ if (mpi->flags & MP_IMGFLAG_DRAW_CALLBACK &&
+ !(mpi->flags & MP_IMGFLAG_DIRECT)) {
+ // nice, filter/vo likes draw_callback :)
+ avctx->draw_horiz_band = draw_slice;
+ } else
+ avctx->draw_horiz_band = NULL;
+ if (IMGFMT_IS_HWACCEL(mpi->imgfmt))
+ avctx->draw_horiz_band = draw_slice;
+
+ pic->data[0] = mpi->planes[0];
+ pic->data[1] = mpi->planes[1];
+ pic->data[2] = mpi->planes[2];
+ pic->data[3] = mpi->planes[3];
+
+ /* Note: some (many) codecs in libavcodec require
+ * linesize[1] == linesize[2] and no changes between frames.
+ * Lavc will check that and die with an error message if it's not true.
+ */
+ pic->linesize[0] = mpi->stride[0];
+ pic->linesize[1] = mpi->stride[1];
+ pic->linesize[2] = mpi->stride[2];
+ pic->linesize[3] = mpi->stride[3];
+
+ pic->opaque = mpi;
+
+ pic->type = FF_BUFFER_TYPE_USER;
+
+ /* The libavcodec reordered_opaque functionality is implemented by
+ * a similar copy in avcodec_default_get_buffer() and without a
+ * workaround like this it'd stop working when a custom buffer
+ * callback is used.
+ */
+ pic->reordered_opaque = avctx->reordered_opaque;
+ return 0;
+}
+
+static void release_buffer(struct AVCodecContext *avctx, AVFrame *pic)
+{
+ mp_image_t *mpi = pic->opaque;
+ sh_video_t *sh = avctx->opaque;
+ vd_ffmpeg_ctx *ctx = sh->context;
+
+ if (ctx->ip_count <= 2 && ctx->b_count <= 1) {
+ if (mpi->flags & MP_IMGFLAG_PRESERVE)
+ ctx->ip_count--;
+ else
+ ctx->b_count--;
+ }
+
+ if (mpi) {
+ // release mpi (in case MPI_IMGTYPE_NUMBERED is used, e.g. for VDPAU)
+ mpi->usage_count--;
+ if (mpi->usage_count < 0) {
+ mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Bad mp_image usage count, please report!\n");
+ mpi->usage_count = 0;
+ }
+ }
+
+ if (pic->type != FF_BUFFER_TYPE_USER) {
+ avcodec_default_release_buffer(avctx, pic);
+ return;
+ }
+
+ for (int i = 0; i < 4; i++)
+ pic->data[i] = NULL;
+}
+
+static av_unused void swap_palette(void *pal)
+{
+ int i;
+ uint32_t *p = pal;
+ for (i = 0; i < AVPALETTE_COUNT; i++)
+ p[i] = le2me_32(p[i]);
+}
+
+static struct mp_image *decode(struct sh_video *sh, struct demux_packet *packet,
+ void *data, int len, int flags,
+ double *reordered_pts)
+{
+ int got_picture = 0;
+ int ret;
+ vd_ffmpeg_ctx *ctx = sh->context;
+ AVFrame *pic = ctx->pic;
+ AVCodecContext *avctx = ctx->avctx;
+ struct lavc_param *lavc_param = &sh->opts->lavc_param;
+ mp_image_t *mpi = NULL;
+ int dr1 = ctx->do_dr1;
+ AVPacket pkt;
+
+ if (!dr1)
+ avctx->draw_horiz_band = NULL;
+
+ if (flags & 2)
+ avctx->skip_frame = AVDISCARD_ALL;
+ else if (flags & 1)
+ avctx->skip_frame = AVDISCARD_NONREF;
+ else
+ avctx->skip_frame = ctx->skip_frame;
+
+ av_init_packet(&pkt);
+ pkt.data = data;
+ pkt.size = len;
+ /* Some codecs (ZeroCodec, some cases of PNG) may want keyframe info
+ * from demuxer. */
+ if (packet && packet->keyframe)
+ pkt.flags |= AV_PKT_FLAG_KEY;
+ if (packet && packet->avpacket) {
+ pkt.side_data = packet->avpacket->side_data;
+ pkt.side_data_elems = packet->avpacket->side_data_elems;
+ }
+ // The avcodec opaque field stupidly supports only int64_t type
+ union pts { int64_t i; double d; };
+ avctx->reordered_opaque = (union pts){.d = *reordered_pts}.i;
+ ret = avcodec_decode_video2(avctx, pic, &got_picture, &pkt);
+ *reordered_pts = (union pts){.i = pic->reordered_opaque}.d;
+
+ dr1 = ctx->do_dr1;
+ if (ret < 0)
+ mp_msg(MSGT_DECVIDEO, MSGL_WARN, "Error while decoding frame!\n");
+ //-- vstats generation
+ while (lavc_param->vstats) { // always one time loop
+ static FILE *fvstats = NULL;
+ char filename[20];
+ static long long int all_len = 0;
+ static int frame_number = 0;
+ static double all_frametime = 0.0;
+ AVFrame *pic = avctx->coded_frame;
+ double quality = 0.0;
+
+ if (!pic)
+ break;
+
+ if (!fvstats) {
+ time_t today2;
+ struct tm *today;
+ today2 = time(NULL);
+ today = localtime(&today2);
+ sprintf(filename, "vstats_%02d%02d%02d.log", today->tm_hour,
+ today->tm_min, today->tm_sec);
+ fvstats = fopen(filename, "w");
+ if (!fvstats) {
+ perror("fopen");
+ lavc_param->vstats = 0; // disable block
+ break;
+ /*exit(1);*/
+ }
+ }
+
+ // average MB quantizer
+ {
+ int x, y;
+ int w = ((avctx->width << avctx->lowres) + 15) >> 4;
+ int h = ((avctx->height << avctx->lowres) + 15) >> 4;
+ int8_t *q = pic->qscale_table;
+ for (y = 0; y < h; y++) {
+ for (x = 0; x < w; x++)
+ quality += (double)*(q + x);
+ q += pic->qstride;
+ }
+ quality /= w * h;
+ }
+
+ all_len += len;
+ all_frametime += sh->frametime;
+ fprintf(fvstats, "frame= %5d q= %2.2f f_size= %6d s_size= %8.0fkB ",
+ ++frame_number, quality, len, (double)all_len / 1024);
+ fprintf(fvstats, "time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ",
+ all_frametime, (double)(len * 8) / sh->frametime / 1000.0,
+ (double)(all_len * 8) / all_frametime / 1000.0);
+ switch (pic->pict_type) {
+ case AV_PICTURE_TYPE_I:
+ fprintf(fvstats, "type= I\n");
+ break;
+ case AV_PICTURE_TYPE_P:
+ fprintf(fvstats, "type= P\n");
+ break;
+ case AV_PICTURE_TYPE_S:
+ fprintf(fvstats, "type= S\n");
+ break;
+ case AV_PICTURE_TYPE_B:
+ fprintf(fvstats, "type= B\n");
+ break;
+ default:
+ fprintf(fvstats, "type= ? (%d)\n", pic->pict_type);
+ break;
+ }
+
+ ctx->qp_stat[(int)(quality + 0.5)]++;
+ ctx->qp_sum += quality;
+ ctx->inv_qp_sum += 1.0 / (double)quality;
+
+ break;
+ }
+ //--
+
+ if (!got_picture)
+ return NULL; // skipped image
+
+ if (init_vo(sh, avctx->pix_fmt) < 0)
+ return NULL;
+
+ if (dr1 && pic->opaque)
+ mpi = (mp_image_t *)pic->opaque;
+
+ if (!mpi)
+ mpi = mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
+ avctx->width, avctx->height);
+ if (!mpi) { // temporary error?
+ mp_tmsg(MSGT_DECVIDEO, MSGL_WARN,
+ "[VD_FFMPEG] Couldn't allocate image for codec.\n");
+ return NULL;
+ }
+
+ if (!dr1) {
+ mpi->planes[0] = pic->data[0];
+ mpi->planes[1] = pic->data[1];
+ mpi->planes[2] = pic->data[2];
+ mpi->planes[3] = pic->data[3];
+ mpi->stride[0] = pic->linesize[0];
+ mpi->stride[1] = pic->linesize[1];
+ mpi->stride[2] = pic->linesize[2];
+ mpi->stride[3] = pic->linesize[3];
+ }
+
+ if (!mpi->planes[0])
+ return NULL;
+
+ if (ctx->best_csp == IMGFMT_422P && mpi->chroma_y_shift == 1) {
+ // we have 422p but user wants 420p
+ mpi->stride[1] *= 2;
+ mpi->stride[2] *= 2;
+ }
+
+#if BYTE_ORDER == BIG_ENDIAN
+ // FIXME: this might cause problems for buffers with FF_BUFFER_HINTS_PRESERVE
+ if (mpi->bpp == 8)
+ swap_palette(mpi->planes[1]);
+#endif
+
+ mpi->colorspace = sh->colorspace;
+ mpi->levels = sh->color_range;
+ mpi->qscale = pic->qscale_table;
+ mpi->qstride = pic->qstride;
+ mpi->pict_type = pic->pict_type;
+ mpi->qscale_type = pic->qscale_type;
+ mpi->fields = MP_IMGFIELD_ORDERED;
+ if (pic->interlaced_frame)
+ mpi->fields |= MP_IMGFIELD_INTERLACED;
+ if (pic->top_field_first)
+ mpi->fields |= MP_IMGFIELD_TOP_FIRST;
+ if (pic->repeat_pict == 1)
+ mpi->fields |= MP_IMGFIELD_REPEAT_FIRST;
+
+ return mpi;
+}
+
+static enum PixelFormat get_format(struct AVCodecContext *avctx,
+ const enum PixelFormat *fmt)
+{
+ sh_video_t *sh = avctx->opaque;
+ int i;
+
+ for (i = 0; fmt[i] != PIX_FMT_NONE; i++) {
+ int imgfmt = pixfmt2imgfmt(fmt[i]);
+ if (!IMGFMT_IS_HWACCEL(imgfmt))
+ continue;
+ mp_msg(MSGT_DECVIDEO, MSGL_V, "[VD_FFMPEG] Trying pixfmt=%d.\n", i);
+ if (init_vo(sh, fmt[i]) >= 0)
+ break;
+ }
+ return fmt[i];
+}
+
+static int control(sh_video_t *sh, int cmd, void *arg)
+{
+ vd_ffmpeg_ctx *ctx = sh->context;
+ AVCodecContext *avctx = ctx->avctx;
+ switch (cmd) {
+ case VDCTRL_QUERY_FORMAT: {
+ int format = (*((int *)arg));
+ if (format == ctx->best_csp)
+ return CONTROL_TRUE;
+ // possible conversions:
+ switch (format) {
+ case IMGFMT_YV12:
+ case IMGFMT_IYUV:
+ case IMGFMT_I420:
+ // "converted" using pointer/stride modification
+ if (ctx->best_csp == IMGFMT_YV12)
+ return CONTROL_TRUE; // u/v swap
+ if (ctx->best_csp == IMGFMT_422P && !ctx->do_dr1)
+ return CONTROL_TRUE; // half stride
+ break;
+ }
+ return CONTROL_FALSE;
+ }
+ case VDCTRL_RESYNC_STREAM:
+ avcodec_flush_buffers(avctx);
+ return CONTROL_TRUE;
+ case VDCTRL_QUERY_UNSEEN_FRAMES:;
+ int delay = avctx->has_b_frames;
+ if (avctx->active_thread_type & FF_THREAD_FRAME)
+ delay += avctx->thread_count - 1;
+ return delay + 10;
+ case VDCTRL_RESET_ASPECT:
+ if (ctx->vo_initialized)
+ ctx->vo_initialized = false;
+ init_vo(sh, avctx->pix_fmt);
+ return true;
+ }
+ return CONTROL_UNKNOWN;
+}
+
+const struct vd_functions mpcodecs_vd_ffmpeg = {
+ .info = &info,
+ .init = init,
+ .uninit = uninit,
+ .control = control,
+ .decode = decode,
+};