mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-24 13:00:36 +00:00
57e66c5a22
Add a new function new_aligned_buffer() which creates a GstBuffer of the requested size/caps, with the memory being allocated/freed by ffmpeg's av_malloc/av_free which guarantees properly aligned memory. Added a can_allocate_aligned internal property which we use to figure out whether downstream can provide us with 128bit aligned buffers.
417 lines
15 KiB
C
417 lines
15 KiB
C
/* GStreamer
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* Copyright (c) 2009 Edward Hervey <bilboed@bilboed.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstffmpegutils.h"
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G_CONST_RETURN gchar *
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gst_ffmpeg_get_codecid_longname (enum CodecID codec_id)
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{
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AVCodec *codec;
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/* Let's use what ffmpeg can provide us */
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if ((codec = avcodec_find_decoder (codec_id)) ||
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(codec = avcodec_find_encoder (codec_id)))
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return codec->long_name;
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return NULL;
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}
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gint
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av_smp_format_depth (enum SampleFormat smp_fmt)
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{
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gint depth = -1;
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switch (smp_fmt) {
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case SAMPLE_FMT_U8:
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depth = 1;
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break;
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case SAMPLE_FMT_S16:
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depth = 2;
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break;
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case SAMPLE_FMT_S32:
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case SAMPLE_FMT_FLT:
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depth = 4;
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break;
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case SAMPLE_FMT_DBL:
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depth = 8;
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break;
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default:
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GST_ERROR ("UNHANDLED SAMPLE FORMAT !");
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break;
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}
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return depth;
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}
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/*
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* Fill in pointers to memory in a AVPicture, where
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* everything is aligned by 4 (as required by X).
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* This is mostly a copy from imgconvert.c with some
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* small changes.
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*/
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#define FF_COLOR_RGB 0 /* RGB color space */
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#define FF_COLOR_GRAY 1 /* gray color space */
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#define FF_COLOR_YUV 2 /* YUV color space. 16 <= Y <= 235, 16 <= U, V <= 240 */
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#define FF_COLOR_YUV_JPEG 3 /* YUV color space. 0 <= Y <= 255, 0 <= U, V <= 255 */
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#define FF_PIXEL_PLANAR 0 /* each channel has one component in AVPicture */
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#define FF_PIXEL_PACKED 1 /* only one components containing all the channels */
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#define FF_PIXEL_PALETTE 2 /* one components containing indexes for a palette */
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typedef struct PixFmtInfo
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{
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const char *name;
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uint8_t nb_channels; /* number of channels (including alpha) */
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uint8_t color_type; /* color type (see FF_COLOR_xxx constants) */
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uint8_t pixel_type; /* pixel storage type (see FF_PIXEL_xxx constants) */
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uint8_t is_alpha:1; /* true if alpha can be specified */
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uint8_t x_chroma_shift; /* X chroma subsampling factor is 2 ^ shift */
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uint8_t y_chroma_shift; /* Y chroma subsampling factor is 2 ^ shift */
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uint8_t depth; /* bit depth of the color components */
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} PixFmtInfo;
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/* this table gives more information about formats */
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static PixFmtInfo pix_fmt_info[PIX_FMT_NB];
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void
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gst_ffmpeg_init_pix_fmt_info ()
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{
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/* YUV formats */
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pix_fmt_info[PIX_FMT_YUV420P].name = g_strdup ("yuv420p");
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pix_fmt_info[PIX_FMT_YUV420P].nb_channels = 3;
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pix_fmt_info[PIX_FMT_YUV420P].color_type = FF_COLOR_YUV;
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pix_fmt_info[PIX_FMT_YUV420P].pixel_type = FF_PIXEL_PLANAR;
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pix_fmt_info[PIX_FMT_YUV420P].depth = 8,
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pix_fmt_info[PIX_FMT_YUV420P].x_chroma_shift = 1,
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pix_fmt_info[PIX_FMT_YUV420P].y_chroma_shift = 1;
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pix_fmt_info[PIX_FMT_YUV422P].name = g_strdup ("yuv422p");
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pix_fmt_info[PIX_FMT_YUV422P].nb_channels = 3;
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pix_fmt_info[PIX_FMT_YUV422P].color_type = FF_COLOR_YUV;
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pix_fmt_info[PIX_FMT_YUV422P].pixel_type = FF_PIXEL_PLANAR;
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pix_fmt_info[PIX_FMT_YUV422P].depth = 8;
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pix_fmt_info[PIX_FMT_YUV422P].x_chroma_shift = 1;
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pix_fmt_info[PIX_FMT_YUV422P].y_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_YUV444P].name = g_strdup ("yuv444p");
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pix_fmt_info[PIX_FMT_YUV444P].nb_channels = 3;
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pix_fmt_info[PIX_FMT_YUV444P].color_type = FF_COLOR_YUV;
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pix_fmt_info[PIX_FMT_YUV444P].pixel_type = FF_PIXEL_PLANAR;
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pix_fmt_info[PIX_FMT_YUV444P].depth = 8;
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pix_fmt_info[PIX_FMT_YUV444P].x_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_YUV444P].y_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_YUYV422].name = g_strdup ("yuv422");
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pix_fmt_info[PIX_FMT_YUYV422].nb_channels = 1;
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pix_fmt_info[PIX_FMT_YUYV422].color_type = FF_COLOR_YUV;
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pix_fmt_info[PIX_FMT_YUYV422].pixel_type = FF_PIXEL_PACKED;
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pix_fmt_info[PIX_FMT_YUYV422].depth = 8;
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pix_fmt_info[PIX_FMT_YUYV422].x_chroma_shift = 1;
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pix_fmt_info[PIX_FMT_YUYV422].y_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_YUV410P].name = g_strdup ("yuv410p");
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pix_fmt_info[PIX_FMT_YUV410P].nb_channels = 3;
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pix_fmt_info[PIX_FMT_YUV410P].color_type = FF_COLOR_YUV;
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pix_fmt_info[PIX_FMT_YUV410P].pixel_type = FF_PIXEL_PLANAR;
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pix_fmt_info[PIX_FMT_YUV410P].depth = 8;
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pix_fmt_info[PIX_FMT_YUV410P].x_chroma_shift = 2;
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pix_fmt_info[PIX_FMT_YUV410P].y_chroma_shift = 2;
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pix_fmt_info[PIX_FMT_YUV411P].name = g_strdup ("yuv411p");
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pix_fmt_info[PIX_FMT_YUV411P].nb_channels = 3;
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pix_fmt_info[PIX_FMT_YUV411P].color_type = FF_COLOR_YUV;
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pix_fmt_info[PIX_FMT_YUV411P].pixel_type = FF_PIXEL_PLANAR;
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pix_fmt_info[PIX_FMT_YUV411P].depth = 8;
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pix_fmt_info[PIX_FMT_YUV411P].x_chroma_shift = 2;
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pix_fmt_info[PIX_FMT_YUV411P].y_chroma_shift = 0;
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/* JPEG YUV */
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pix_fmt_info[PIX_FMT_YUVJ420P].name = g_strdup ("yuvj420p");
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pix_fmt_info[PIX_FMT_YUVJ420P].nb_channels = 3;
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pix_fmt_info[PIX_FMT_YUVJ420P].color_type = FF_COLOR_YUV_JPEG;
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pix_fmt_info[PIX_FMT_YUVJ420P].pixel_type = FF_PIXEL_PLANAR;
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pix_fmt_info[PIX_FMT_YUVJ420P].depth = 8;
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pix_fmt_info[PIX_FMT_YUVJ420P].x_chroma_shift = 1;
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pix_fmt_info[PIX_FMT_YUVJ420P].y_chroma_shift = 1;
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pix_fmt_info[PIX_FMT_YUVJ422P].name = g_strdup ("yuvj422p");
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pix_fmt_info[PIX_FMT_YUVJ422P].nb_channels = 3;
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pix_fmt_info[PIX_FMT_YUVJ422P].color_type = FF_COLOR_YUV_JPEG;
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pix_fmt_info[PIX_FMT_YUVJ422P].pixel_type = FF_PIXEL_PLANAR;
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pix_fmt_info[PIX_FMT_YUVJ422P].depth = 8;
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pix_fmt_info[PIX_FMT_YUVJ422P].x_chroma_shift = 1;
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pix_fmt_info[PIX_FMT_YUVJ422P].y_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_YUVJ444P].name = g_strdup ("yuvj444p");
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pix_fmt_info[PIX_FMT_YUVJ444P].nb_channels = 3;
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pix_fmt_info[PIX_FMT_YUVJ444P].color_type = FF_COLOR_YUV_JPEG;
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pix_fmt_info[PIX_FMT_YUVJ444P].pixel_type = FF_PIXEL_PLANAR;
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pix_fmt_info[PIX_FMT_YUVJ444P].depth = 8;
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pix_fmt_info[PIX_FMT_YUVJ444P].x_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_YUVJ444P].y_chroma_shift = 0;
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/* RGB formats */
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pix_fmt_info[PIX_FMT_RGB24].name = g_strdup ("rgb24");
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pix_fmt_info[PIX_FMT_RGB24].nb_channels = 3;
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pix_fmt_info[PIX_FMT_RGB24].color_type = FF_COLOR_RGB;
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pix_fmt_info[PIX_FMT_RGB24].pixel_type = FF_PIXEL_PACKED;
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pix_fmt_info[PIX_FMT_RGB24].depth = 8;
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pix_fmt_info[PIX_FMT_RGB24].x_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_RGB24].y_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_BGR24].name = g_strdup ("bgr24");
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pix_fmt_info[PIX_FMT_BGR24].nb_channels = 3;
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pix_fmt_info[PIX_FMT_BGR24].color_type = FF_COLOR_RGB;
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pix_fmt_info[PIX_FMT_BGR24].pixel_type = FF_PIXEL_PACKED;
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pix_fmt_info[PIX_FMT_BGR24].depth = 8;
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pix_fmt_info[PIX_FMT_BGR24].x_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_BGR24].y_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_RGB32].name = g_strdup ("rgba32");
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pix_fmt_info[PIX_FMT_RGB32].nb_channels = 4;
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pix_fmt_info[PIX_FMT_RGB32].is_alpha = 1;
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pix_fmt_info[PIX_FMT_RGB32].color_type = FF_COLOR_RGB;
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pix_fmt_info[PIX_FMT_RGB32].pixel_type = FF_PIXEL_PACKED;
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pix_fmt_info[PIX_FMT_RGB32].depth = 8;
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pix_fmt_info[PIX_FMT_RGB32].x_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_RGB32].y_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_RGB565].name = g_strdup ("rgb565");
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pix_fmt_info[PIX_FMT_RGB565].nb_channels = 3;
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pix_fmt_info[PIX_FMT_RGB565].color_type = FF_COLOR_RGB;
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pix_fmt_info[PIX_FMT_RGB565].pixel_type = FF_PIXEL_PACKED;
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pix_fmt_info[PIX_FMT_RGB565].depth = 5;
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pix_fmt_info[PIX_FMT_RGB565].x_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_RGB565].y_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_RGB555].name = g_strdup ("rgb555");
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pix_fmt_info[PIX_FMT_RGB555].nb_channels = 4;
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pix_fmt_info[PIX_FMT_RGB555].is_alpha = 1;
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pix_fmt_info[PIX_FMT_RGB555].color_type = FF_COLOR_RGB;
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pix_fmt_info[PIX_FMT_RGB555].pixel_type = FF_PIXEL_PACKED;
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pix_fmt_info[PIX_FMT_RGB555].depth = 5;
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pix_fmt_info[PIX_FMT_RGB555].x_chroma_shift = 0;
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pix_fmt_info[PIX_FMT_RGB555].y_chroma_shift = 0;
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/* gray / mono formats */
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pix_fmt_info[PIX_FMT_GRAY8].name = g_strdup ("gray");
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pix_fmt_info[PIX_FMT_GRAY8].nb_channels = 1;
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pix_fmt_info[PIX_FMT_GRAY8].color_type = FF_COLOR_GRAY;
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pix_fmt_info[PIX_FMT_GRAY8].pixel_type = FF_PIXEL_PLANAR;
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pix_fmt_info[PIX_FMT_GRAY8].depth = 8;
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pix_fmt_info[PIX_FMT_MONOWHITE].name = g_strdup ("monow");
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pix_fmt_info[PIX_FMT_MONOWHITE].nb_channels = 1;
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pix_fmt_info[PIX_FMT_MONOWHITE].color_type = FF_COLOR_GRAY;
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pix_fmt_info[PIX_FMT_MONOWHITE].pixel_type = FF_PIXEL_PLANAR;
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pix_fmt_info[PIX_FMT_MONOWHITE].depth = 1;
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pix_fmt_info[PIX_FMT_MONOBLACK].name = g_strdup ("monob");
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pix_fmt_info[PIX_FMT_MONOBLACK].nb_channels = 1;
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pix_fmt_info[PIX_FMT_MONOBLACK].color_type = FF_COLOR_GRAY;
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pix_fmt_info[PIX_FMT_MONOBLACK].pixel_type = FF_PIXEL_PLANAR;
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pix_fmt_info[PIX_FMT_MONOBLACK].depth = 1;
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/* paletted formats */
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pix_fmt_info[PIX_FMT_PAL8].name = g_strdup ("pal8");
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pix_fmt_info[PIX_FMT_PAL8].nb_channels = 4;
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pix_fmt_info[PIX_FMT_PAL8].is_alpha = 1;
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pix_fmt_info[PIX_FMT_PAL8].color_type = FF_COLOR_RGB;
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pix_fmt_info[PIX_FMT_PAL8].pixel_type = FF_PIXEL_PALETTE;
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pix_fmt_info[PIX_FMT_PAL8].depth = 8;
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};
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int
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gst_ffmpeg_avpicture_get_size (int pix_fmt, int width, int height)
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{
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AVPicture dummy_pict;
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return gst_ffmpeg_avpicture_fill (&dummy_pict, NULL, pix_fmt, width, height);
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}
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#define GEN_MASK(x) ((1<<(x))-1)
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#define ROUND_UP_X(v,x) (((v) + GEN_MASK(x)) & ~GEN_MASK(x))
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#define ROUND_UP_2(x) ROUND_UP_X (x, 1)
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#define ROUND_UP_4(x) ROUND_UP_X (x, 2)
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#define ROUND_UP_8(x) ROUND_UP_X (x, 3)
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#define DIV_ROUND_UP_X(v,x) (((v) + GEN_MASK(x)) >> (x))
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int
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gst_ffmpeg_avpicture_fill (AVPicture * picture,
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uint8_t * ptr, enum PixelFormat pix_fmt, int width, int height)
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{
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int size, w2, h2, size2;
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int stride, stride2;
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PixFmtInfo *pinfo;
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pinfo = &pix_fmt_info[pix_fmt];
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switch (pix_fmt) {
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case PIX_FMT_YUV420P:
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case PIX_FMT_YUV422P:
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case PIX_FMT_YUV444P:
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case PIX_FMT_YUV410P:
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case PIX_FMT_YUV411P:
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case PIX_FMT_YUVJ420P:
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case PIX_FMT_YUVJ422P:
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case PIX_FMT_YUVJ444P:
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stride = ROUND_UP_4 (width);
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h2 = ROUND_UP_X (height, pinfo->y_chroma_shift);
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size = stride * h2;
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w2 = DIV_ROUND_UP_X (width, pinfo->x_chroma_shift);
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stride2 = ROUND_UP_4 (w2);
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h2 = DIV_ROUND_UP_X (height, pinfo->y_chroma_shift);
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size2 = stride2 * h2;
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picture->data[0] = ptr;
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picture->data[1] = picture->data[0] + size;
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picture->data[2] = picture->data[1] + size2;
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picture->data[3] = NULL;
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picture->linesize[0] = stride;
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picture->linesize[1] = stride2;
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picture->linesize[2] = stride2;
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picture->linesize[3] = 0;
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GST_DEBUG ("planes %d %d %d", 0, size, size + size2);
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GST_DEBUG ("strides %d %d %d", stride, stride2, stride2);
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return size + 2 * size2;
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case PIX_FMT_RGB24:
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case PIX_FMT_BGR24:
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stride = ROUND_UP_4 (width * 3);
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size = stride * height;
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picture->data[0] = ptr;
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picture->data[1] = NULL;
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picture->data[2] = NULL;
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picture->data[3] = NULL;
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picture->linesize[0] = stride;
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picture->linesize[1] = 0;
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picture->linesize[2] = 0;
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picture->linesize[3] = 0;
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return size;
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/*case PIX_FMT_AYUV4444:
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case PIX_FMT_BGR32:
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case PIX_FMT_BGRA32:
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case PIX_FMT_RGB32: */
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case PIX_FMT_RGB32:
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stride = width * 4;
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size = stride * height;
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picture->data[0] = ptr;
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picture->data[1] = NULL;
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picture->data[2] = NULL;
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picture->data[3] = NULL;
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picture->linesize[0] = stride;
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picture->linesize[1] = 0;
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picture->linesize[2] = 0;
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picture->linesize[3] = 0;
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return size;
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case PIX_FMT_RGB555:
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case PIX_FMT_RGB565:
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case PIX_FMT_YUYV422:
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case PIX_FMT_UYVY422:
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stride = ROUND_UP_4 (width * 2);
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size = stride * height;
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picture->data[0] = ptr;
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picture->data[1] = NULL;
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picture->data[2] = NULL;
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picture->data[3] = NULL;
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picture->linesize[0] = stride;
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picture->linesize[1] = 0;
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picture->linesize[2] = 0;
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picture->linesize[3] = 0;
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return size;
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case PIX_FMT_UYYVYY411:
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/* FIXME, probably not the right stride */
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stride = ROUND_UP_4 (width);
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size = stride * height;
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picture->data[0] = ptr;
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picture->data[1] = NULL;
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picture->data[2] = NULL;
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picture->data[3] = NULL;
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picture->linesize[0] = width + width / 2;
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picture->linesize[1] = 0;
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picture->linesize[2] = 0;
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picture->linesize[3] = 0;
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return size + size / 2;
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case PIX_FMT_GRAY8:
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stride = ROUND_UP_4 (width);
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size = stride * height;
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picture->data[0] = ptr;
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picture->data[1] = NULL;
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picture->data[2] = NULL;
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picture->data[3] = NULL;
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picture->linesize[0] = stride;
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picture->linesize[1] = 0;
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|
picture->linesize[2] = 0;
|
|
picture->linesize[3] = 0;
|
|
return size;
|
|
case PIX_FMT_MONOWHITE:
|
|
case PIX_FMT_MONOBLACK:
|
|
stride = ROUND_UP_4 ((width + 7) >> 3);
|
|
size = stride * height;
|
|
picture->data[0] = ptr;
|
|
picture->data[1] = NULL;
|
|
picture->data[2] = NULL;
|
|
picture->data[3] = NULL;
|
|
picture->linesize[0] = stride;
|
|
picture->linesize[1] = 0;
|
|
picture->linesize[2] = 0;
|
|
picture->linesize[3] = 0;
|
|
return size;
|
|
case PIX_FMT_PAL8:
|
|
/* already forced to be with stride, so same result as other function */
|
|
stride = ROUND_UP_4 (width);
|
|
size = stride * height;
|
|
picture->data[0] = ptr;
|
|
picture->data[1] = ptr + size; /* palette is stored here as 256 32 bit words */
|
|
picture->data[2] = NULL;
|
|
picture->data[3] = NULL;
|
|
picture->linesize[0] = stride;
|
|
picture->linesize[1] = 4;
|
|
picture->linesize[2] = 0;
|
|
picture->linesize[3] = 0;
|
|
return size + 256 * 4;
|
|
default:
|
|
picture->data[0] = NULL;
|
|
picture->data[1] = NULL;
|
|
picture->data[2] = NULL;
|
|
picture->data[3] = NULL;
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Create a GstBuffer of the requested size and caps.
|
|
* The memory will be allocated by ffmpeg, making sure it's properly aligned
|
|
* for any processing. */
|
|
|
|
GstBuffer *
|
|
new_aligned_buffer (gint size, GstCaps * caps)
|
|
{
|
|
GstBuffer *buf;
|
|
|
|
buf = gst_buffer_new ();
|
|
GST_BUFFER_DATA (buf) = GST_BUFFER_MALLOCDATA (buf) = av_malloc (size);
|
|
GST_BUFFER_SIZE (buf) = size;
|
|
GST_BUFFER_FREE_FUNC (buf) = av_free;
|
|
if (caps)
|
|
gst_buffer_set_caps (buf, caps);
|
|
|
|
return buf;
|
|
}
|