#include <stdint.h>
+#include "libavutil/buffer.h"
+#include "libavutil/channel_layout.h"
#include "libavutil/mathematics.h"
#include "libavutil/pixfmt.h"
#include "avcodec.h"
+#include "config.h"
-typedef struct InternalBuffer {
- uint8_t *base[AV_NUM_DATA_POINTERS];
- uint8_t *data[AV_NUM_DATA_POINTERS];
- int linesize[AV_NUM_DATA_POINTERS];
- int width;
- int height;
- enum PixelFormat pix_fmt;
- uint8_t **extended_data;
- int audio_data_size;
- int nb_channels;
-} InternalBuffer;
+/**
+ * The codec does not modify any global variables in the init function,
+ * allowing to call the init function without locking any global mutexes.
+ */
+#define FF_CODEC_CAP_INIT_THREADSAFE (1 << 0)
+/**
+ * The codec allows calling the close function for deallocation even if
+ * the init function returned a failure. Without this capability flag, a
+ * codec does such cleanup internally when returning failures from the
+ * init function and does not expect the close function to be called at
+ * all.
+ */
+#define FF_CODEC_CAP_INIT_CLEANUP (1 << 1)
+/**
+ * Decoders marked with FF_CODEC_CAP_SETS_PKT_DTS want to set
+ * AVFrame.pkt_dts manually. If the flag is set, utils.c won't overwrite
+ * this field. If it's unset, utils.c tries to guess the pkt_dts field
+ * from the input AVPacket.
+ */
+#define FF_CODEC_CAP_SETS_PKT_DTS (1 << 2)
-typedef struct AVCodecInternal {
+#ifdef DEBUG
+# define ff_dlog(ctx, ...) av_log(ctx, AV_LOG_DEBUG, __VA_ARGS__)
+#else
+# define ff_dlog(ctx, ...) do { } while (0)
+#endif
+
+#ifdef TRACE
+# define ff_tlog(ctx, ...) av_log(ctx, AV_LOG_TRACE, __VA_ARGS__)
+#else
+# define ff_tlog(ctx, ...) do { } while (0)
+#endif
+
+
+#if !FF_API_QUANT_BIAS
+#define FF_DEFAULT_QUANT_BIAS 999999
+#endif
+
+#define FF_SANE_NB_CHANNELS 63U
+
+#define FF_SIGNBIT(x) (x >> CHAR_BIT * sizeof(x) - 1)
+
+typedef struct FramePool {
/**
- * internal buffer count
- * used by default get/release/reget_buffer().
+ * Pools for each data plane. For audio all the planes have the same size,
+ * so only pools[0] is used.
*/
- int buffer_count;
+ AVBufferPool *pools[4];
- /**
- * internal buffers
- * used by default get/release/reget_buffer().
+ /*
+ * Pool parameters
*/
- InternalBuffer *buffer;
+ int format;
+ int width, height;
+ int stride_align[AV_NUM_DATA_POINTERS];
+ int linesize[4];
+ int planes;
+ int channels;
+ int samples;
+} FramePool;
+typedef struct AVCodecInternal {
/**
* Whether the parent AVCodecContext is a copy of the context which had
* init() called on it.
*/
int is_copy;
-#if FF_API_OLD_DECODE_AUDIO
/**
- * Internal sample count used by avcodec_encode_audio() to fabricate pts.
- * Can be removed along with avcodec_encode_audio().
+ * Whether to allocate progress for frame threading.
+ *
+ * The codec must set it to 1 if it uses ff_thread_await/report_progress(),
+ * then progress will be allocated in ff_thread_get_buffer(). The frames
+ * then MUST be freed with ff_thread_release_buffer().
+ *
+ * If the codec does not need to call the progress functions (there are no
+ * dependencies between the frames), it should leave this at 0. Then it can
+ * decode straight to the user-provided frames (which the user will then
+ * free with av_frame_unref()), there is no need to call
+ * ff_thread_release_buffer().
*/
- int sample_count;
-#endif
+ int allocate_progress;
/**
* An audio frame with less than required samples has been submitted and
* padded with silence. Reject all subsequent frames.
*/
int last_audio_frame;
+
+ AVFrame *to_free;
+
+ FramePool *pool;
+
+ void *thread_ctx;
+
+ /**
+ * Current packet as passed into the decoder, to avoid having to pass the
+ * packet into every function.
+ */
+ AVPacket *pkt;
+
+ /**
+ * hwaccel-specific private data
+ */
+ void *hwaccel_priv_data;
+
+ /**
+ * checks API usage: after codec draining, flush is required to resume operation
+ */
+ int draining;
+
+ /**
+ * buffers for using new encode/decode API through legacy API
+ */
+ AVPacket *buffer_pkt;
+ int buffer_pkt_valid; // encoding: packet without data can be valid
+ AVFrame *buffer_frame;
+ int draining_done;
} AVCodecInternal;
struct AVCodecDefault {
const uint8_t *value;
};
-/**
- * Determine whether pix_fmt is a hardware accelerated format.
- */
-int ff_is_hwaccel_pix_fmt(enum PixelFormat pix_fmt);
-
-/**
- * Return the hardware accelerated codec for codec codec_id and
- * pixel format pix_fmt.
- *
- * @param codec_id the codec to match
- * @param pix_fmt the pixel format to match
- * @return the hardware accelerated codec, or NULL if none was found.
- */
-AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt);
-
/**
* Return the index into tab at which {a,b} match elements {[0],[1]} of tab.
* If there is no such matching pair then size is returned.
* This value was chosen such that every bit of the buffer is
* addressable by a 32-bit signed integer as used by get_bits.
*/
-#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - FF_INPUT_BUFFER_PADDING_SIZE)
+#define FF_MAX_EXTRADATA_SIZE ((1 << 28) - AV_INPUT_BUFFER_PADDING_SIZE)
/**
* Check AVPacket size and/or allocate data.
avctx->time_base);
}
+/**
+ * Get a buffer for a frame. This is a wrapper around
+ * AVCodecContext.get_buffer() and should be used instead calling get_buffer()
+ * directly.
+ */
+int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags);
+
+/**
+ * Identical in function to av_frame_make_writable(), except it uses
+ * ff_get_buffer() to allocate the buffer when needed.
+ */
+int ff_reget_buffer(AVCodecContext *avctx, AVFrame *frame);
+
+const uint8_t *avpriv_find_start_code(const uint8_t *restrict p,
+ const uint8_t *end,
+ uint32_t *restrict state);
+
+/**
+ * Check that the provided frame dimensions are valid and set them on the codec
+ * context.
+ */
+int ff_set_dimensions(AVCodecContext *s, int width, int height);
+
+/**
+ * Check that the provided sample aspect ratio is valid and set it on the codec
+ * context.
+ */
+int ff_set_sar(AVCodecContext *avctx, AVRational sar);
+
+/**
+ * Add or update AV_FRAME_DATA_MATRIXENCODING side data.
+ */
+int ff_side_data_update_matrix_encoding(AVFrame *frame,
+ enum AVMatrixEncoding matrix_encoding);
+
+/**
+ * Select the (possibly hardware accelerated) pixel format.
+ * This is a wrapper around AVCodecContext.get_format() and should be used
+ * instead of calling get_format() directly.
+ */
+int ff_get_format(AVCodecContext *avctx, const enum AVPixelFormat *fmt);
+
+/**
+ * Set various frame properties from the codec context / packet data.
+ */
+int ff_decode_frame_props(AVCodecContext *avctx, AVFrame *frame);
+
+/**
+ * Add a CPB properties side data to an encoding context.
+ */
+AVCPBProperties *ff_add_cpb_side_data(AVCodecContext *avctx);
+
#endif /* AVCODEC_INTERNAL_H */
projects / ffmpeg / blobdiff