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utils: add helper functions to get codec or profile name.

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This commit is contained in:
Gwenole Beauchesne 2013-12-20 16:04:19 +01:00
parent 690e85ff8e
commit a6fe7698bc
2 changed files with 93 additions and 4 deletions
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88
gst-libs/gst/vaapi/gstvaapiprofile.c
View file

@ -34,13 +34,19 @@
#include "gstvaapiprofile.h"
#include "gstvaapiworkarounds.h"
typedef struct _GstVaapiCodecMap GstVaapiCodecMap;
typedef struct _GstVaapiProfileMap GstVaapiProfileMap;
typedef struct _GstVaapiEntrypointMap GstVaapiEntrypointMap;
struct _GstVaapiCodecMap {
GstVaapiCodec codec;
const gchar *name;
};
struct _GstVaapiProfileMap {
GstVaapiProfile profile;
VAProfile va_profile;
const char *caps_str;
const char *media_str;
const gchar *profile_str;
};
@ -49,6 +55,19 @@ struct _GstVaapiEntrypointMap {
VAEntrypoint va_entrypoint;
};
/* Codecs */
static const GstVaapiCodecMap gst_vaapi_codecs[] = {
{ GST_VAAPI_CODEC_MPEG1, "mpeg1" },
{ GST_VAAPI_CODEC_MPEG2, "mpeg2" },
{ GST_VAAPI_CODEC_MPEG4, "mpeg4" },
{ GST_VAAPI_CODEC_H263, "h263" },
{ GST_VAAPI_CODEC_H264, "h264" },
{ GST_VAAPI_CODEC_WMV3, "wmv3" },
{ GST_VAAPI_CODEC_VC1, "vc1" },
{ GST_VAAPI_CODEC_JPEG, "jpeg" },
{ 0, }
};
/* Profiles */
static const GstVaapiProfileMap gst_vaapi_profiles[] = {
{ GST_VAAPI_PROFILE_MPEG2_SIMPLE, VAProfileMPEG2Simple,
@ -120,6 +139,17 @@ static const GstVaapiEntrypointMap gst_vaapi_entrypoints[] = {
{ 0, }
};
static const GstVaapiCodecMap *
get_codecs_map(GstVaapiCodec codec)
{
const GstVaapiCodecMap *m;
for (m = gst_vaapi_codecs; m->codec; m++)
if (m->codec == codec)
return m;
return NULL;
}
static const GstVaapiProfileMap *
get_profiles_map(GstVaapiProfile profile)
{
@ -142,6 +172,22 @@ get_entrypoints_map(GstVaapiEntrypoint entrypoint)
return NULL;
}
/**
* gst_vaapi_codec_get_name:
* @codec: a #GstVaapiCodec
*
* Returns a string representation for the supplied @codec type.
*
* Return value: the statically allocated string representation of @codec
*/
const gchar *
gst_vaapi_codec_get_name(GstVaapiCodec codec)
{
const GstVaapiCodecMap * const m = get_codecs_map(codec);
return m ? m->name : NULL;
}
/**
* gst_vaapi_profile:
* @profile: a #VAProfile
@ -163,6 +209,40 @@ gst_vaapi_profile(VAProfile profile)
return 0;
}
/**
* gst_vaapi_profile_get_name:
* @profile: a #GstVaapiProfile
*
* Returns a string representation for the supplied @profile.
*
* Return value: the statically allocated string representation of @profile
*/
const gchar *
gst_vaapi_profile_get_name(GstVaapiProfile profile)
{
const GstVaapiProfileMap * const m = get_profiles_map(profile);
return m ? m->profile_str : NULL;
}
/**
* gst_vaapi_profile_get_media_type_name:
* @profile: a #GstVaapiProfile
*
* Returns a string representation for the media type of the supplied
* @profile.
*
* Return value: the statically allocated string representation of
* @profile media type
*/
const gchar *
gst_vaapi_profile_get_media_type_name(GstVaapiProfile profile)
{
const GstVaapiProfileMap * const m = get_profiles_map(profile);
return m ? m->media_str : NULL;
}
/**
* gst_vaapi_profile_from_codec_data:
* @codec: a #GstVaapiCodec
@ -256,9 +336,9 @@ gst_vaapi_profile_from_caps(const GstCaps *caps)
profile = 0;
best_profile = 0;
for (m = gst_vaapi_profiles; !profile && m->profile; m++) {
if (strncmp(name, m->caps_str, namelen) != 0)
if (strncmp(name, m->media_str, namelen) != 0)
continue;
caps_test = gst_caps_from_string(m->caps_str);;
caps_test = gst_caps_from_string(m->media_str);
if (gst_caps_is_always_compatible(caps, caps_test)) {
best_profile = m->profile;
if (profile_str && m->profile_str &&
@ -322,7 +402,7 @@ gst_vaapi_profile_get_caps(GstVaapiProfile profile)
for (m = gst_vaapi_profiles; m->profile; m++) {
if (m->profile != profile)
continue;
caps = gst_caps_from_string(m->caps_str);
caps = gst_caps_from_string(m->media_str);
if (!caps)
continue;
gst_caps_set_simple(

9
gst-libs/gst/vaapi/gstvaapiprofile.h
View file

@ -169,12 +169,21 @@ typedef enum {
GST_VAAPI_ENTRYPOINT_SLICE_ENCODE
} GstVaapiEntrypoint;
const gchar *
gst_vaapi_codec_get_name(GstVaapiCodec codec);
GstVaapiProfile
gst_vaapi_profile(VAProfile profile);
GstVaapiProfile
gst_vaapi_profile_from_caps(const GstCaps *caps);
const gchar *
gst_vaapi_profile_get_name(GstVaapiProfile profile);
const gchar *
gst_vaapi_profile_get_media_type_name(GstVaapiProfile profile);
VAProfile
gst_vaapi_profile_get_va_profile(GstVaapiProfile profile);