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/*****************************************************************
* gmerlin-encoders - encoder plugins for gmerlin
*
* Copyright (c) 2001 - 2012 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
#include <string.h>
#include <errno.h>
#include <config.h>
#include <gmerlin/plugin.h>
#include <gmerlin/pluginfuncs.h>
#include <gmerlin/utils.h>
#include <gmerlin/log.h>
#define LOG_DOMAIN "y4m"
#include <yuv4mpeg.h>
#include "y4m_common.h"
void bg_y4m_set_pixelformat(bg_y4m_common_t * com)
{
switch(com->chroma_mode)
{
case Y4M_CHROMA_420JPEG:
com->format.pixelformat = GAVL_YUV_420_P;
com->format.chroma_placement = GAVL_CHROMA_PLACEMENT_DEFAULT;
break;
case Y4M_CHROMA_420MPEG2:
com->format.pixelformat = GAVL_YUV_420_P;
com->format.chroma_placement = GAVL_CHROMA_PLACEMENT_MPEG2;
break;
case Y4M_CHROMA_420PALDV:
com->format.pixelformat = GAVL_YUV_420_P;
com->format.chroma_placement = GAVL_CHROMA_PLACEMENT_DVPAL;
break;
case Y4M_CHROMA_444:
com->format.pixelformat = GAVL_YUV_444_P;
break;
case Y4M_CHROMA_422:
com->format.pixelformat = GAVL_YUV_422_P;
break;
case Y4M_CHROMA_411:
com->format.pixelformat = GAVL_YUV_411_P;
break;
case Y4M_CHROMA_MONO:
/* Monochrome isn't supported by gavl, we choose the format with the
smallest chroma planes to save memory */
com->format.pixelformat = GAVL_YUV_410_P;
break;
case Y4M_CHROMA_444ALPHA:
/* Must be converted to packed */
com->format.pixelformat = GAVL_YUVA_32;
com->tmp_planes[0] = malloc(com->format.image_width *
com->format.image_height * 4);
com->tmp_planes[1] = com->tmp_planes[0] +
com->format.image_width * com->format.image_height;
com->tmp_planes[2] = com->tmp_planes[1] +
com->format.image_width * com->format.image_height;
com->tmp_planes[3] = com->tmp_planes[2] +
com->format.image_width * com->format.image_height;
break;
}
}
static uint8_t yj_8_to_y_8[256] =
{
0x10, 0x11, 0x12, 0x13, 0x13, 0x14, 0x15, 0x16,
0x17, 0x18, 0x19, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,
0x1e, 0x1f, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24,
0x25, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b,
0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x31,
0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x38,
0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3e, 0x3f,
0x40, 0x41, 0x42, 0x43, 0x44, 0x44, 0x45, 0x46,
0x47, 0x48, 0x49, 0x4a, 0x4a, 0x4b, 0x4c, 0x4d,
0x4e, 0x4f, 0x50, 0x50, 0x51, 0x52, 0x53, 0x54,
0x55, 0x56, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b,
0x5c, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62,
0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x68,
0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6e, 0x6f,
0x70, 0x71, 0x72, 0x73, 0x74, 0x74, 0x75, 0x76,
0x77, 0x78, 0x79, 0x7a, 0x7a, 0x7b, 0x7c, 0x7d,
0x7e, 0x7f, 0x80, 0x81, 0x81, 0x82, 0x83, 0x84,
0x85, 0x86, 0x87, 0x87, 0x88, 0x89, 0x8a, 0x8b,
0x8c, 0x8d, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92,
0x93, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99,
0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0x9f,
0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa5, 0xa6,
0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xab, 0xac, 0xad,
0xae, 0xaf, 0xb0, 0xb1, 0xb1, 0xb2, 0xb3, 0xb4,
0xb5, 0xb6, 0xb7, 0xb7, 0xb8, 0xb9, 0xba, 0xbb,
0xbc, 0xbd, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2,
0xc3, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9,
0xca, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0,
0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd6,
0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdc, 0xdd,
0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe2, 0xe3, 0xe4,
0xe5, 0xe6, 0xe7, 0xe8, 0xe8, 0xe9, 0xea, 0xeb,
};
static void convert_yuva4444(uint8_t ** dst, uint8_t ** src,
int width, int height, int stride)
{
int i, j;
uint8_t *y, *u, *v, *a, *s;
y = dst[0];
u = dst[1];
v = dst[2];
a = dst[3];
s = src[0];
for(i = 0; i < height; i++)
{
s = src[0] + i * stride;
for(j = 0; j < width; j++)
{
*(y++) = *(s++);
*(u++) = *(s++);
*(v++) = *(s++);
*(a++) = yj_8_to_y_8[*(s++)];
}
}
}
static gavl_video_frame_t *
y4m_get_func(void * data)
{
bg_y4m_common_t * com = data;
if(!com->frame)
com->frame = gavl_video_frame_create_nopad(&com->format);
return com->frame;
}
static gavl_sink_status_t
y4m_write_func(void * data, gavl_video_frame_t * frame)
{
int result;
bg_y4m_common_t * com = data;
/* Check for YUVA4444 */
if(com->format.pixelformat == GAVL_YUVA_32)
{
convert_yuva4444(com->tmp_planes, frame->planes,
com->format.image_width,
com->format.image_height,
frame->strides[0]);
result = y4m_write_frame(com->fd, &com->si, &com->fi, com->tmp_planes);
}
else
result = y4m_write_frame(com->fd, &com->si, &com->fi, frame->planes);
if(result != Y4M_OK)
return GAVL_SINK_ERROR;
return GAVL_SINK_OK;
}
int bg_y4m_write_header(bg_y4m_common_t * com)
{
int i, err;
y4m_ratio_t r;
y4m_accept_extensions(1);
/* Set up the stream- and frame header */
y4m_init_stream_info(&com->si);
y4m_init_frame_info(&com->fi);
y4m_si_set_width(&com->si, com->format.image_width);
y4m_si_set_height(&com->si, com->format.image_height);
switch(com->format.interlace_mode)
{
case GAVL_INTERLACE_TOP_FIRST:
i = Y4M_ILACE_TOP_FIRST;
break;
case GAVL_INTERLACE_BOTTOM_FIRST:
i = Y4M_ILACE_BOTTOM_FIRST;
break;
case GAVL_INTERLACE_MIXED:
com->format.interlace_mode = GAVL_INTERLACE_NONE;
default: // Fall through
i = Y4M_ILACE_NONE;
break;
}
y4m_si_set_interlace(&com->si, i);
r.n = com->format.timescale;
r.d = com->format.frame_duration;
y4m_si_set_framerate(&com->si, r);
r.n = com->format.pixel_width;
r.d = com->format.pixel_height;
y4m_si_set_sampleaspect(&com->si, r);
y4m_si_set_chroma(&com->si, com->chroma_mode);
/* Now, it's time to write the stream header */
err = y4m_write_stream_header(com->fd, &com->si);
if(err != Y4M_OK)
{
bg_log(BG_LOG_ERROR, LOG_DOMAIN, "Writing stream header failed: %s",
((err == Y4M_ERR_SYSTEM) ? strerror(errno) : y4m_strerr(err)));
return 0;
}
if(com->format.pixelformat == GAVL_YUVA_32)
com->sink = gavl_video_sink_create(NULL, y4m_write_func, com, &com->format);
else
com->sink = gavl_video_sink_create(y4m_get_func, y4m_write_func, com, &com->format);
return 1;
}
int bg_y4m_write_frame(bg_y4m_common_t * com, gavl_video_frame_t * frame)
{
return (gavl_video_sink_put_frame(com->sink, frame) == GAVL_SINK_OK);
}
void bg_y4m_cleanup(bg_y4m_common_t * com)
{
y4m_fini_stream_info(&com->si);
y4m_fini_frame_info(&com->fi);
if(com->tmp_planes[0])
free(com->tmp_planes[0]);
if(com->frame)
gavl_video_frame_destroy(com->frame);
if(com->sink)
gavl_video_sink_destroy(com->sink);
}
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