gstreamer/gst-libs/gst/vaapi/gstvaapiutils_h264.c

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/*
* gstvaapiutils_h264.c - H.264 related utilities
*
* Copyright (C) 2011-2013 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/gsth264parser.h>
#include "gstvaapiutils_h264_priv.h"
struct map
{
guint value;
const gchar *name;
};
/* Profile string map */
static const struct map gst_vaapi_h264_profile_map[] = {
/* *INDENT-OFF* */
{ GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE, "constrained-baseline" },
{ GST_VAAPI_PROFILE_H264_BASELINE, "baseline" },
{ GST_VAAPI_PROFILE_H264_MAIN, "main" },
{ GST_VAAPI_PROFILE_H264_EXTENDED, "extended" },
{ GST_VAAPI_PROFILE_H264_HIGH, "high" },
{ GST_VAAPI_PROFILE_H264_HIGH10, "high-10" },
{ GST_VAAPI_PROFILE_H264_HIGH_422, "high-4:2:2" },
{ GST_VAAPI_PROFILE_H264_HIGH_444, "high-4:4:4" },
{ GST_VAAPI_PROFILE_H264_SCALABLE_BASELINE, "scalable-baseline" },
{ GST_VAAPI_PROFILE_H264_SCALABLE_HIGH, "scalable-high" },
{ GST_VAAPI_PROFILE_H264_STEREO_HIGH, "stereo-high" },
{ GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH, "multiview-high" },
{ 0, NULL }
/* *INDENT-ON* */
};
/* Level string map */
static const struct map gst_vaapi_h264_level_map[] = {
/* *INDENT-OFF* */
{ GST_VAAPI_LEVEL_H264_L1, "1" },
{ GST_VAAPI_LEVEL_H264_L1b, "1b" },
{ GST_VAAPI_LEVEL_H264_L1_1, "1.1" },
{ GST_VAAPI_LEVEL_H264_L1_2, "1.2" },
{ GST_VAAPI_LEVEL_H264_L1_3, "1.3" },
{ GST_VAAPI_LEVEL_H264_L2, "2" },
{ GST_VAAPI_LEVEL_H264_L2_1, "2.1" },
{ GST_VAAPI_LEVEL_H264_L2_2, "2.2" },
{ GST_VAAPI_LEVEL_H264_L3, "3" },
{ GST_VAAPI_LEVEL_H264_L3_1, "3.1" },
{ GST_VAAPI_LEVEL_H264_L3_2, "3.2" },
{ GST_VAAPI_LEVEL_H264_L4, "4" },
{ GST_VAAPI_LEVEL_H264_L4_1, "4.1" },
{ GST_VAAPI_LEVEL_H264_L4_2, "4.2" },
{ GST_VAAPI_LEVEL_H264_L5, "5" },
{ GST_VAAPI_LEVEL_H264_L5_1, "5.1" },
{ GST_VAAPI_LEVEL_H264_L5_2, "5.2" },
{ 0, NULL }
/* *INDENT-ON* */
};
/* Table A-1 - Level limits */
/* *INDENT-OFF* */
static const GstVaapiH264LevelLimits gst_vaapi_h264_level_limits[] = {
/* level idc MaxMBPS MaxFS MaxDpbMbs MaxBR */
{ GST_VAAPI_LEVEL_H264_L1, 10, 1485, 99, 396, 64 },
{ GST_VAAPI_LEVEL_H264_L1b, 11, 1485, 99, 396, 128 },
{ GST_VAAPI_LEVEL_H264_L1_1, 11, 3000, 396, 900, 192 },
{ GST_VAAPI_LEVEL_H264_L1_2, 12, 6000, 396, 2376, 384 },
{ GST_VAAPI_LEVEL_H264_L1_3, 13, 11880, 396, 2376, 768 },
{ GST_VAAPI_LEVEL_H264_L2, 20, 11880, 396, 2376, 2000 },
{ GST_VAAPI_LEVEL_H264_L2_1, 21, 19800, 792, 4752, 4000 },
{ GST_VAAPI_LEVEL_H264_L2_2, 22, 20250, 1620, 8100, 4000 },
{ GST_VAAPI_LEVEL_H264_L3, 30, 40500, 1620, 8100, 10000 },
{ GST_VAAPI_LEVEL_H264_L3_1, 31, 108000, 3600, 18000, 14000 },
{ GST_VAAPI_LEVEL_H264_L3_2, 32, 216000, 5120, 20480, 20000 },
{ GST_VAAPI_LEVEL_H264_L4, 40, 245760, 8192, 32768, 20000 },
{ GST_VAAPI_LEVEL_H264_L4_1, 41, 245760, 8192, 32768, 50000 },
{ GST_VAAPI_LEVEL_H264_L4_2, 42, 522240, 8704, 34816, 50000 },
{ GST_VAAPI_LEVEL_H264_L5, 50, 589824, 22080, 110400, 135000 },
{ GST_VAAPI_LEVEL_H264_L5_1, 51, 983040, 36864, 184320, 240000 },
{ GST_VAAPI_LEVEL_H264_L5_2, 52, 2073600, 36864, 184320, 240000 },
{ 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_h264_get_profile_score (GstVaapiProfile profile)
{
const struct map *const m =
map_lookup_value (gst_vaapi_h264_profile_map, profile);
return m ? 1 + (m - gst_vaapi_h264_profile_map) : 0;
}
/** Returns GstVaapiProfile from H.264 profile_idc value */
GstVaapiProfile
gst_vaapi_utils_h264_get_profile (guint8 profile_idc)
{
GstVaapiProfile profile;
switch (profile_idc) {
case GST_H264_PROFILE_BASELINE:
profile = GST_VAAPI_PROFILE_H264_BASELINE;
break;
case GST_H264_PROFILE_MAIN:
profile = GST_VAAPI_PROFILE_H264_MAIN;
break;
case GST_H264_PROFILE_EXTENDED:
profile = GST_VAAPI_PROFILE_H264_EXTENDED;
break;
case GST_H264_PROFILE_HIGH:
profile = GST_VAAPI_PROFILE_H264_HIGH;
break;
case GST_H264_PROFILE_HIGH10:
profile = GST_VAAPI_PROFILE_H264_HIGH10;
break;
case GST_H264_PROFILE_HIGH_422:
profile = GST_VAAPI_PROFILE_H264_HIGH_422;
break;
case GST_H264_PROFILE_HIGH_444:
profile = GST_VAAPI_PROFILE_H264_HIGH_444;
break;
case GST_H264_PROFILE_SCALABLE_BASELINE:
profile = GST_VAAPI_PROFILE_H264_SCALABLE_BASELINE;
break;
case GST_H264_PROFILE_SCALABLE_HIGH:
profile = GST_VAAPI_PROFILE_H264_SCALABLE_HIGH;
break;
case GST_H264_PROFILE_MULTIVIEW_HIGH:
profile = GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH;
break;
case GST_H264_PROFILE_STEREO_HIGH:
profile = GST_VAAPI_PROFILE_H264_STEREO_HIGH;
break;
default:
g_debug ("unsupported profile_idc value");
profile = GST_VAAPI_PROFILE_UNKNOWN;
break;
}
return profile;
}
/** Returns H.264 profile_idc value from GstVaapiProfile */
guint8
gst_vaapi_utils_h264_get_profile_idc (GstVaapiProfile profile)
{
guint8 profile_idc;
switch (profile) {
case GST_VAAPI_PROFILE_H264_BASELINE:
case GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE:
profile_idc = GST_H264_PROFILE_BASELINE;
break;
case GST_VAAPI_PROFILE_H264_MAIN:
profile_idc = GST_H264_PROFILE_MAIN;
break;
case GST_VAAPI_PROFILE_H264_EXTENDED:
profile_idc = GST_H264_PROFILE_EXTENDED;
break;
case GST_VAAPI_PROFILE_H264_HIGH:
profile_idc = GST_H264_PROFILE_HIGH;
break;
case GST_VAAPI_PROFILE_H264_HIGH10:
profile_idc = GST_H264_PROFILE_HIGH10;
break;
case GST_VAAPI_PROFILE_H264_HIGH_422:
profile_idc = GST_H264_PROFILE_HIGH_422;
break;
case GST_VAAPI_PROFILE_H264_HIGH_444:
profile_idc = GST_H264_PROFILE_HIGH_444;
break;
case GST_VAAPI_PROFILE_H264_SCALABLE_BASELINE:
profile_idc = GST_H264_PROFILE_SCALABLE_BASELINE;
break;
case GST_VAAPI_PROFILE_H264_SCALABLE_HIGH:
profile_idc = GST_H264_PROFILE_SCALABLE_HIGH;
break;
case GST_VAAPI_PROFILE_H264_MULTIVIEW_HIGH:
profile_idc = GST_H264_PROFILE_MULTIVIEW_HIGH;
break;
case GST_VAAPI_PROFILE_H264_STEREO_HIGH:
profile_idc = GST_H264_PROFILE_STEREO_HIGH;
break;
default:
g_debug ("unsupported GstVaapiProfile value");
profile_idc = 0;
break;
}
return profile_idc;
}
/** Returns GstVaapiProfile from a string representation */
GstVaapiProfile
gst_vaapi_utils_h264_get_profile_from_string (const gchar * str)
{
const struct map *const m = map_lookup_name (gst_vaapi_h264_profile_map, str);
return m ? (GstVaapiProfile) m->value : GST_VAAPI_PROFILE_UNKNOWN;
}
/** Returns a string representation for the supplied H.264 profile */
const gchar *
gst_vaapi_utils_h264_get_profile_string (GstVaapiProfile profile)
{
const struct map *const m =
map_lookup_value (gst_vaapi_h264_profile_map, profile);
return m ? m->name : NULL;
}
/** Returns GstVaapiLevelH264 from H.264 level_idc value */
GstVaapiLevelH264
gst_vaapi_utils_h264_get_level (guint8 level_idc)
{
const GstVaapiH264LevelLimits *llp;
// Prefer Level 1.1 over level 1b
if (G_UNLIKELY (level_idc == 11))
return GST_VAAPI_LEVEL_H264_L1_1;
for (llp = gst_vaapi_h264_level_limits; llp->level != 0; llp++) {
if (llp->level_idc == level_idc)
return llp->level;
}
g_debug ("unsupported level_idc value");
return (GstVaapiLevelH264) 0;
}
/** Returns H.264 level_idc value from GstVaapiLevelH264 */
guint8
gst_vaapi_utils_h264_get_level_idc (GstVaapiLevelH264 level)
{
const GstVaapiH264LevelLimits *const llp =
gst_vaapi_utils_h264_get_level_limits (level);
return llp ? llp->level_idc : 0;
}
/** Returns GstVaapiLevelH264 from a string representation */
GstVaapiLevelH264
gst_vaapi_utils_h264_get_level_from_string (const gchar * str)
{
gint v, level_idc = 0;
if (!str || !str[0])
goto not_found;
v = g_ascii_digit_value (str[0]);
if (v < 0)
goto not_found;
level_idc = v * 10;
switch (str[1]) {
case '\0':
break;
case '.':
v = g_ascii_digit_value (str[2]);
if (v < 0 || str[3] != '\0')
goto not_found;
level_idc += v;
break;
case 'b':
if (level_idc == 10 && str[2] == '\0')
return GST_VAAPI_LEVEL_H264_L1b;
// fall-trough
default:
goto not_found;
}
return gst_vaapi_utils_h264_get_level (level_idc);
not_found:
return (GstVaapiLevelH264) 0;
}
/** Returns a string representation for the supplied H.264 level */
const gchar *
gst_vaapi_utils_h264_get_level_string (GstVaapiLevelH264 level)
{
if (level < GST_VAAPI_LEVEL_H264_L1 || level > GST_VAAPI_LEVEL_H264_L5_2)
return NULL;
return gst_vaapi_h264_level_map[level - GST_VAAPI_LEVEL_H264_L1].name;
}
/** Returns level limits as specified in Table A-1 of the H.264 standard */
const GstVaapiH264LevelLimits *
gst_vaapi_utils_h264_get_level_limits (GstVaapiLevelH264 level)
{
if (level < GST_VAAPI_LEVEL_H264_L1 || level > GST_VAAPI_LEVEL_H264_L5_2)
return NULL;
return &gst_vaapi_h264_level_limits[level - GST_VAAPI_LEVEL_H264_L1];
}
/** Returns the Table A-1 specification */
const GstVaapiH264LevelLimits *
gst_vaapi_utils_h264_get_level_limits_table (guint * out_length_ptr)
{
if (out_length_ptr)
*out_length_ptr = G_N_ELEMENTS (gst_vaapi_h264_level_limits) - 1;
return gst_vaapi_h264_level_limits;
}
/** Returns GstVaapiChromaType from H.264 chroma_format_idc value */
GstVaapiChromaType
gst_vaapi_utils_h264_get_chroma_type (guint chroma_format_idc)
{
GstVaapiChromaType chroma_type;
switch (chroma_format_idc) {
case 0:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV400;
break;
case 1:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV420;
break;
case 2:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV422;
break;
case 3:
chroma_type = GST_VAAPI_CHROMA_TYPE_YUV444;
break;
default:
g_debug ("unsupported chroma_format_idc value");
chroma_type = (GstVaapiChromaType) 0;
break;
}
return chroma_type;
}
/** Returns H.264 chroma_format_idc value from GstVaapiChromaType */
guint
gst_vaapi_utils_h264_get_chroma_format_idc (GstVaapiChromaType chroma_type)
{
guint chroma_format_idc;
switch (chroma_type) {
case GST_VAAPI_CHROMA_TYPE_YUV400:
chroma_format_idc = 0;
break;
case GST_VAAPI_CHROMA_TYPE_YUV420:
chroma_format_idc = 1;
break;
case GST_VAAPI_CHROMA_TYPE_YUV422:
chroma_format_idc = 2;
break;
case GST_VAAPI_CHROMA_TYPE_YUV444:
chroma_format_idc = 3;
break;
default:
g_debug ("unsupported GstVaapiChromaType value");
chroma_format_idc = 1;
break;
}
return chroma_format_idc;
}