#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"
+/**
+ * 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)
+/**
+ * The decoder sets the cropping fields in the output frames manually.
+ * If this cap is set, the generic code will initialize output frame
+ * dimensions to coded rather than display values.
+ */
+#define FF_CODEC_CAP_EXPORTS_CROPPING (1 << 3)
+
+#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
+
+
+#define FF_DEFAULT_QUANT_BIAS 999999
+
#define FF_SANE_NB_CHANNELS 63U
+#define FF_SIGNBIT(x) (x >> CHAR_BIT * sizeof(x) - 1)
+
typedef struct FramePool {
/**
* Pools for each data plane. For audio all the planes have the same size,
int samples;
} FramePool;
+typedef struct DecodeSimpleContext {
+ AVPacket *in_pkt;
+ AVFrame *out_frame;
+} DecodeSimpleContext;
+
+typedef struct DecodeFilterContext {
+ AVBSFContext **bsfs;
+ int nb_bsfs;
+} DecodeFilterContext;
+
typedef struct AVCodecInternal {
/**
* Whether the parent AVCodecContext is a copy of the context which had
*/
int last_audio_frame;
- AVFrame to_free;
+ AVFrame *to_free;
FramePool *pool;
void *thread_ctx;
+ DecodeSimpleContext ds;
+ DecodeFilterContext filter;
+
+ /**
+ * Properties (timestamps+side data) extracted from the last packet passed
+ * for decoding.
+ */
+ AVPacket *last_pkt_props;
+
+ /**
+ * hwaccel-specific private data
+ */
+ void *hwaccel_priv_data;
+
+ /**
+ * checks API usage: after codec draining, flush is required to resume operation
+ */
+ int draining;
+
/**
- * Current packet as passed into the decoder, to avoid having to pass the
- * packet into every function.
+ * buffers for using new encode/decode API through legacy API
*/
- AVPacket *pkt;
+ AVPacket *buffer_pkt;
+ int buffer_pkt_valid; // encoding: packet without data can be valid
+ AVFrame *buffer_frame;
+ int draining_done;
+ /* set to 1 when the caller is using the old decoding API */
+ int compat_decode;
+ int compat_decode_warned;
+ /* this variable is set by the decoder internals to signal to the old
+ * API compat wrappers the amount of data consumed from the last packet */
+ size_t compat_decode_consumed;
+ /* when a partial packet has been consumed, this stores the remaining size
+ * of the packet (that should be submitted in the next decode call */
+ size_t compat_decode_partial_size;
+ AVFrame *compat_decode_frame;
} AVCodecInternal;
struct AVCodecDefault {
const uint8_t *value;
};
-/**
- * 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 AVCodecID codec_id, enum AVPixelFormat 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.
*/
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.
+ *
+ * The list of pixel formats must contain at least one valid entry, and is
+ * terminated with AV_PIX_FMT_NONE. If it is possible to decode to software,
+ * the last entry in the list must be the most accurate software format.
+ * If it is not possible to decode to software, AVCodecContext.sw_pix_fmt
+ * must be set before calling this function.
+ */
+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);
+
+#if defined(_WIN32) && CONFIG_SHARED && !defined(BUILDING_avcodec)
+# define av_export_avcodec __declspec(dllimport)
+#else
+# define av_export_avcodec
+#endif
+
#endif /* AVCODEC_INTERNAL_H */
projects / ffmpeg / blobdiff