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🎥 Command line media player
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C
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960#pragma once
#include <stdbool.h>
enum mp_frame_type { MP_FRAME_NONE = 0, // NULL, placeholder, no frame available (_not_ EOF) MP_FRAME_VIDEO, // struct mp_image* MP_FRAME_AUDIO, // struct mp_aframe* MP_FRAME_PACKET, // struct demux_packet* MP_FRAME_EOF, // NULL, signals end of stream (but frames after it can // resume filtering!)};
const char *mp_frame_type_str(enum mp_frame_type t);
// Generic container for a piece of data, such as a video frame, or a collection// of audio samples. Wraps an actual media-specific frame data types in a// generic way. Also can be an empty frame for signaling (MP_FRAME_EOF and// possibly others).// This struct is usually allocated on the stack and can be copied by value.// You need to consider that the underlying pointer is ref-counted, and that// the _unref/_ref functions must be used accordingly.struct mp_frame { enum mp_frame_type type; void *data;};
// Return whether the frame contains actual data (audio, video, ...). If false,// it's either signaling, or MP_FRAME_NONE.bool mp_frame_is_data(struct mp_frame frame);
// Return whether the frame is for signaling (data flow commands like// MP_FRAME_EOF). If false, it's either data (mp_frame_is_data()), or// MP_FRAME_NONE.bool mp_frame_is_signaling(struct mp_frame frame);
// Unreferences any frame data, and sets *frame to MP_FRAME_NONE. (It does// _not_ deallocate the memory block the parameter points to, only frame->data.)void mp_frame_unref(struct mp_frame *frame);
// Return a new reference to the given frame. The caller owns the returned// frame. On failure returns a MP_FRAME_NONE.struct mp_frame mp_frame_ref(struct mp_frame frame);
double mp_frame_get_pts(struct mp_frame frame);void mp_frame_set_pts(struct mp_frame frame, double pts);
// Estimation of total size in bytes. This is for buffering purposes.int mp_frame_approx_size(struct mp_frame frame);
struct AVFrame;struct AVRational;struct AVFrame *mp_frame_to_av(struct mp_frame frame, struct AVRational *tb);struct mp_frame mp_frame_from_av(enum mp_frame_type type, struct AVFrame *frame, struct AVRational *tb);
#define MAKE_FRAME(type, frame) ((struct mp_frame){(type), (frame)})#define MP_NO_FRAME MAKE_FRAME(0, 0)#define MP_EOF_FRAME MAKE_FRAME(MP_FRAME_EOF, 0)