/*
* gstvaapiutils_mpeg2.c - MPEG-2 related utilities
*
* Copyright (C) 2011-2014 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* 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
*/
#include "sysdeps.h"
#include <gst/codecparsers/gstmpegvideoparser.h>
#include "gstvaapicompat.h"
#include "gstvaapiutils_mpeg2_priv.h"
#define DEBUG 1
#include "gstvaapidebug.h"
struct map
{
guint value;
const gchar *name;
};
/* Profile string map */
static const struct map gst_vaapi_mpeg2_profile_map[] = {
/* *INDENT-OFF* */
{ GST_VAAPI_PROFILE_MPEG2_SIMPLE, "simple" },
{ GST_VAAPI_PROFILE_MPEG2_MAIN, "main" },
{ GST_VAAPI_PROFILE_MPEG2_HIGH, "high" },
{ 0, NULL }
/* *INDENT-ON* */
};
/* Level string map */
static const struct map gst_vaapi_mpeg2_level_map[] = {
/* *INDENT-OFF* */
{ GST_VAAPI_LEVEL_MPEG2_LOW, "low" },
{ GST_VAAPI_LEVEL_MPEG2_MAIN, "main" },
{ GST_VAAPI_LEVEL_MPEG2_HIGH_1440, "high-1440" },
{ GST_VAAPI_LEVEL_MPEG2_HIGH, "high" },
{ 0, NULL }
/* *INDENT-ON* */
};
/* Table 8-10 to 8-13 (up to Main profile only) */
/* *INDENT-OFF* */
static const GstVaapiMPEG2LevelLimits gst_vaapi_mpeg2_level_limits[] = {
/* level h_size v_size fps samples kbps vbv_size */
{ GST_VAAPI_LEVEL_MPEG2_LOW,
0x0a, 352, 288, 30, 3041280, 4000, 475136 },
{ GST_VAAPI_LEVEL_MPEG2_MAIN,
0x08, 720, 576, 30, 1036800, 15000, 1835008 },
{ GST_VAAPI_LEVEL_MPEG2_HIGH_1440,
0x06, 1440, 1152, 60, 47001600, 60000, 7340032 },
{ GST_VAAPI_LEVEL_MPEG2_HIGH,
0x04, 1920, 1152, 60, 62668800, 80000, 9781248 },
{ 0, }
};
/* *INDENT-ON* */
/* Lookup value in map */
static const struct map *
map_lookup_value (const struct map *m, guint value)
{
g_return_val_if_fail (m != NULL, NULL);
for (; m->name != NULL; m++) {
if (m->value == value)
return m;
}
return NULL;
}
/* Lookup name in map */
static const struct map *
map_lookup_name (const struct map *m, const gchar * name)
{
g_return_val_if_fail (m != NULL, NULL);
if (!name)
return NULL;
for (; m->name != NULL; m++) {
if (strcmp (m->name, name) == 0)
return m;
}
return NULL;
}
/** Returns a relative score for the supplied GstVaapiProfile */
guint
gst_vaapi_utils_mpeg2_get_profile_score (GstVaapiProfile profile)
{
const struct map *const m =
map_lookup_value (gst_vaapi_mpeg2_profile_map, profile);
return m ? 1 + (m - gst_vaapi_mpeg2_profile_map) : 0;
}
/** Returns GstVaapiProfile from MPEG-2 profile_idc value */
GstVaapiProfile
gst_vaapi_utils_mpeg2_get_profile (guint8 profile_idc)
{
GstVaapiProfile profile;
switch (profile_idc) {
case GST_MPEG_VIDEO_PROFILE_SIMPLE:
profile = GST_VAAPI_PROFILE_MPEG2_SIMPLE;
break;
case GST_MPEG_VIDEO_PROFILE_MAIN:
profile = GST_VAAPI_PROFILE_MPEG2_MAIN;
break;
case GST_MPEG_VIDEO_PROFILE_HIGH:
profile = GST_VAAPI_PROFILE_MPEG2_HIGH;
break;
default:
GST_DEBUG ("unsupported profile_idc value");
profile = GST_VAAPI_PROFILE_UNKNOWN;
break;
}
return profile;
}
/** Returns MPEG-2 profile_idc value from GstVaapiProfile */
guint8
gst_vaapi_utils_mpeg2_get_profile_idc (GstVaapiProfile profile)
{
guint8 profile_idc;
switch (profile) {
case GST_VAAPI_PROFILE_MPEG2_SIMPLE:
profile_idc = GST_MPEG_VIDEO_PROFILE_SIMPLE;
break;
case GST_VAAPI_PROFILE_MPEG2_MAIN:
profile_idc = GST_MPEG_VIDEO_PROFILE_MAIN;
break;
case GST_VAAPI_PROFILE_MPEG2_HIGH:
profile_idc = GST_MPEG_VIDEO_PROFILE_HIGH;
break;
default:
GST_DEBUG ("unsupported GstVaapiProfile value");
profile_idc = 0;
break;
}
return profile_idc;
}
/** Returns GstVaapiProfile from a string representation */
GstVaapiProfile
gst_vaapi_utils_mpeg2_get_profile_from_string (const gchar * str)
{
const struct map *const m =
map_lookup_name (gst_vaapi_mpeg2_profile_map, str);
return m ? (GstVaapiProfile) m->value : GST_VAAPI_PROFILE_UNKNOWN;
}
/** Returns a string representation for the supplied MPEG-2 profile */
const gchar *
gst_vaapi_utils_mpeg2_get_profile_string (GstVaapiProfile profile)
{
const struct map *const m =
map_lookup_value (gst_vaapi_mpeg2_profile_map, profile);
return m ? m->name : NULL;
}
/** Returns GstVaapiLevelMPEG2 from MPEG-2 level_idc value */
GstVaapiLevelMPEG2
gst_vaapi_utils_mpeg2_get_level (guint8 level_idc)
{
const GstVaapiMPEG2LevelLimits *llp;
for (llp = gst_vaapi_mpeg2_level_limits; llp->level != 0; llp++) {
if (llp->level_idc == level_idc)
return llp->level;
}
GST_DEBUG ("unsupported level_idc value");
return (GstVaapiLevelMPEG2) 0;
}
/** Returns MPEG-2 level_idc value from GstVaapiLevelMPEG2 */
guint8
gst_vaapi_utils_mpeg2_get_level_idc (GstVaapiLevelMPEG2 level)
{
const GstVaapiMPEG2LevelLimits *const llp =
gst_vaapi_utils_mpeg2_get_level_limits (level);
return llp ? llp->level_idc : 0;
}
/** Returns GstVaapiLevelMPEG2 from a string representation */
GstVaapiLevelMPEG2
gst_vaapi_utils_mpeg2_get_level_from_string (const gchar * str)
{
const struct map *const m = map_lookup_name (gst_vaapi_mpeg2_level_map, str);
return (GstVaapiLevelMPEG2) (m ? m->value : 0);
}
/** Returns a string representation for the supplied MPEG-2 level */
const gchar *
gst_vaapi_utils_mpeg2_get_level_string (GstVaapiLevelMPEG2 level)
{
if (level < GST_VAAPI_LEVEL_MPEG2_LOW || level > GST_VAAPI_LEVEL_MPEG2_HIGH)
return NULL;
return gst_vaapi_mpeg2_level_map[level - GST_VAAPI_LEVEL_MPEG2_LOW].name;
}
/** Returns level limits as specified in Tables 8-10 to 8-13 of the
MPEG-2 standard */
const GstVaapiMPEG2LevelLimits *
gst_vaapi_utils_mpeg2_get_level_limits (GstVaapiLevelMPEG2 level)
{
if (level < GST_VAAPI_LEVEL_MPEG2_LOW || level > GST_VAAPI_LEVEL_MPEG2_HIGH)
return NULL;
return &gst_vaapi_mpeg2_level_limits[level - GST_VAAPI_LEVEL_MPEG2_LOW];
}
/** Returns Tables 8-10 to 8-13 from the specification (up to High profile) */
const GstVaapiMPEG2LevelLimits *
gst_vaapi_utils_mpeg2_get_level_limits_table (guint * out_length_ptr)
{
if (out_length_ptr)
*out_length_ptr = G_N_ELEMENTS (gst_vaapi_mpeg2_level_limits) - 1;
return gst_vaapi_mpeg2_level_limits;
}
/** Returns GstVaapiChromaType from MPEG-2 chroma_format_idc value */
GstVaapiChromaType
gst_vaapi_utils_mpeg2_get_chroma_type (guint chroma_format_idc)
{
GstVaapiChromaType chroma_type;
switch (chroma_format_idc) {
case GST_MPEG_VIDEO_CHROMA_420:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420;
break;
case GST_MPEG_VIDEO_CHROMA_422:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV422;
break;
case GST_MPEG_VIDEO_CHROMA_444:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV444;
break;
default:
GST_DEBUG ("unsupported chroma_format_idc value");
chroma_type = (GstVaapiChromaType) 0;
break;
}
return chroma_type;
}
/** Returns MPEG-2 chroma_format_idc value from GstVaapiChromaType */
guint
gst_vaapi_utils_mpeg2_get_chroma_format_idc (GstVaapiChromaType chroma_type)
{
guint chroma_format_idc;
switch (chroma_type) {
case GST_VAAPI_CHROMA_TYPE_YUV420:
chroma_format_idc = GST_MPEG_VIDEO_CHROMA_420;
break;
case GST_VAAPI_CHROMA_TYPE_YUV422:
chroma_format_idc = GST_MPEG_VIDEO_CHROMA_422;
break;
case GST_VAAPI_CHROMA_TYPE_YUV444:
chroma_format_idc = GST_MPEG_VIDEO_CHROMA_444;
break;
default:
GST_DEBUG ("unsupported GstVaapiChromaType value");
chroma_format_idc = 1;
break;
}
return chroma_format_idc;
}