diff options
| -rw-r--r-- | doc/APIchanges | 3 | ||||
| -rw-r--r-- | libavcodec/avcodec.h | 74 | ||||
| -rw-r--r-- | libavcodec/hwaccel.h | 18 | ||||
| -rw-r--r-- | libavcodec/utils.c | 12 | ||||
| -rw-r--r-- | libavcodec/version.h | 4 |
5 files changed, 109 insertions, 2 deletions
diff --git a/doc/APIchanges b/doc/APIchanges index fecd57387a..a0c8e709de 100644 --- a/doc/APIchanges +++ b/doc/APIchanges @@ -15,6 +15,9 @@ libavutil: 2017-10-21 API changes, most recent first: +2017-11-xx - xxxxxxx - lavc 58.4.100 - avcodec.h + Add AVCodecHWConfig and avcodec_get_hw_config(). + 2017-11-22 - 3650cb2dfa - lavu 55.3.100 - opencl.h Remove experimental OpenCL API (av_opencl_*). diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 4cd72b5961..e2dc97d62f 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -36,6 +36,7 @@ #include "libavutil/channel_layout.h" #include "libavutil/dict.h" #include "libavutil/frame.h" +#include "libavutil/hwcontext.h" #include "libavutil/log.h" #include "libavutil/pixfmt.h" #include "libavutil/rational.h" @@ -3279,6 +3280,61 @@ typedef struct AVProfile { const char *name; ///< short name for the profile } AVProfile; +enum { + /** + * The codec supports this format via the hw_device_ctx interface. + * + * When selecting this format, AVCodecContext.hw_device_ctx should + * have been set to a device of the specified type before calling + * avcodec_open2(). + */ + AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX = 0x01, + /** + * The codec supports this format via the hw_frames_ctx interface. + * + * When selecting this format for a decoder, + * AVCodecContext.hw_frames_ctx should be set to a suitable frames + * context inside the get_format() callback. The frames context + * must have been created on a device of the specified type. + */ + AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX = 0x02, + /** + * The codec supports this format by some internal method. + * + * This format can be selected without any additional configuration - + * no device or frames context is required. + */ + AV_CODEC_HW_CONFIG_METHOD_INTERNAL = 0x04, + /** + * The codec supports this format by some ad-hoc method. + * + * Additional settings and/or function calls are required. See the + * codec-specific documentation for details. (Methods requiring + * this sort of configuration are deprecated and others should be + * used in preference.) + */ + AV_CODEC_HW_CONFIG_METHOD_AD_HOC = 0x08, +}; + +typedef struct AVCodecHWConfig { + /** + * A hardware pixel format which the codec can use. + */ + enum AVPixelFormat pix_fmt; + /** + * Bit set of AV_CODEC_HW_CONFIG_METHOD_* flags, describing the possible + * setup methods which can be used with this configuration. + */ + int methods; + /** + * The device type associated with the configuration. + * + * Must be set for AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX and + * AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX, otherwise unused. + */ + enum AVHWDeviceType device_type; +} AVCodecHWConfig; + typedef struct AVCodecDefault AVCodecDefault; struct AVSubtitle; @@ -3404,6 +3460,15 @@ typedef struct AVCodec { * packets before decoding. */ const char *bsfs; + + /** + * Array of pointers to hardware configurations supported by the codec, + * or NULL if no hardware supported. The array is terminated by a NULL + * pointer. + * + * The user can only access this field via avcodec_get_hw_config(). + */ + const struct AVCodecHWConfigInternal **hw_configs; } AVCodec; #if FF_API_CODEC_GET_SET @@ -3414,6 +3479,15 @@ int av_codec_get_max_lowres(const AVCodec *codec); struct MpegEncContext; /** + * Retrieve supported hardware configurations for a codec. + * + * Values of index from zero to some maximum return the indexed configuration + * descriptor; all other values return NULL. If the codec does not support + * any hardware configurations then it will always return NULL. + */ +const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index); + +/** * @defgroup lavc_hwaccel AVHWAccel * @{ */ diff --git a/libavcodec/hwaccel.h b/libavcodec/hwaccel.h index 124fbbf1fd..0198c7f858 100644 --- a/libavcodec/hwaccel.h +++ b/libavcodec/hwaccel.h @@ -19,6 +19,24 @@ #ifndef AVCODEC_HWACCEL_H #define AVCODEC_HWACCEL_H +#include "avcodec.h" + + #define HWACCEL_CAP_ASYNC_SAFE (1 << 0) + +typedef struct AVCodecHWConfigInternal { + /** + * This is the structure which will be returned to the user by + * avcodec_get_hw_config(). + */ + AVCodecHWConfig public; + /** + * If this configuration uses a hwaccel, a pointer to it. + * If not, NULL. + */ + const AVHWAccel *hwaccel; +} AVCodecHWConfigInternal; + + #endif /* AVCODEC_HWACCEL_H */ diff --git a/libavcodec/utils.c b/libavcodec/utils.c index c733709171..2a09ed4930 100644 --- a/libavcodec/utils.c +++ b/libavcodec/utils.c @@ -45,6 +45,7 @@ #include "libavutil/thread.h" #include "avcodec.h" #include "decode.h" +#include "hwaccel.h" #include "libavutil/opt.h" #include "me_cmp.h" #include "mpegvideo.h" @@ -1886,6 +1887,17 @@ int ff_match_2uint16(const uint16_t(*tab)[2], int size, int a, int b) return i; } +const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index) +{ + int i; + if (!codec->hw_configs || index < 0) + return NULL; + for (i = 0; i <= index; i++) + if (!codec->hw_configs[i]) + return NULL; + return &codec->hw_configs[index]->public; +} + static AVHWAccel *first_hwaccel = NULL; static AVHWAccel **last_hwaccel = &first_hwaccel; diff --git a/libavcodec/version.h b/libavcodec/version.h index c8550bca9a..8847737f37 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -28,8 +28,8 @@ #include "libavutil/version.h" #define LIBAVCODEC_VERSION_MAJOR 58 -#define LIBAVCODEC_VERSION_MINOR 3 -#define LIBAVCODEC_VERSION_MICRO 105 +#define LIBAVCODEC_VERSION_MINOR 4 +#define LIBAVCODEC_VERSION_MICRO 100 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ LIBAVCODEC_VERSION_MINOR, \ |