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Miam-Player
0.8.0
A nice music player
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#include <avfilter.h>
Public Types | |
enum | { AVLINK_UNINIT = 0, AVLINK_STARTINIT, AVLINK_INIT } |
A link between two filters. This contains pointers to the source and destination filters between which this link exists, and the indexes of the pads involved. In addition, this link also contains the parameters which have been negotiated and agreed upon between the filter, such as image dimensions, format, etc.
anonymous enum |
int AVFilterLink::age_index |
Index in the age array.
uint64_t AVFilterLink::channel_layout |
channel layout of current buffer (see libavutil/channel_layout.h)
int AVFilterLink::channels |
Number of channels.
int64_t AVFilterLink::current_pts |
Current timestamp of the link, as defined by the most recent frame(s), in link time_base units.
int64_t AVFilterLink::current_pts_us |
Current timestamp of the link, as defined by the most recent frame(s), in AV_TIME_BASE units.
AVFilterContext* AVFilterLink::dst |
dest filter
AVFilterPad* AVFilterLink::dstpad |
input pad on the dest filter
unsigned AVFilterLink::flags |
Link processing flags.
int AVFilterLink::format |
agreed upon media format
int64_t AVFilterLink::frame_count |
Number of past frames sent through the link.
AVRational AVFilterLink::frame_rate |
Frame rate of the stream on the link, or 1/0 if unknown or variable; if left to 0/0, will be automatically copied from the first input of the source filter if it exists.
Sources should set it to the best estimation of the real frame rate. If the source frame rate is unknown or variable, set this to 1/0. Filters should update it if necessary depending on their function. Sinks can use it to set a default output frame rate. It is similar to the r_frame_rate field in AVStream.
int AVFilterLink::frame_wanted_in |
True if a frame is currently wanted on the input of this filter. Set when ff_request_frame() is called by the output, cleared when the request is handled or forwarded.
int AVFilterLink::frame_wanted_out |
True if a frame is currently wanted on the output of this filter. Set when ff_request_frame() is called by the output, cleared when a frame is filtered.
struct AVFilterGraph* AVFilterLink::graph |
Graph the filter belongs to.
int AVFilterLink::h |
agreed upon image height
AVBufferRef* AVFilterLink::hw_frames_ctx |
For hwaccel pixel formats, this should be a reference to the AVHWFramesContext describing the frames.
struct AVFilterChannelLayouts* AVFilterLink::in_channel_layouts |
AVFilterFormats* AVFilterLink::in_formats |
Lists of formats and channel layouts supported by the input and output filters respectively. These lists are used for negotiating the format to actually be used, which will be loaded into the format and channel_layout members, above, when chosen.
AVFilterFormats* AVFilterLink::in_samplerates |
Lists of channel layouts and sample rates used for automatic negotiation.
enum { ... } AVFilterLink::init_state |
stage of the initialization of the link properties (dimensions, etc)
int AVFilterLink::max_samples |
Maximum number of samples to filter at once. If filter_frame() is called with more samples, it will split them.
int AVFilterLink::min_samples |
Minimum number of samples to filter at once. If filter_frame() is called with fewer samples, it will accumulate them in partial_buf. This field and the related ones must not be changed after filtering has started. If 0, all related fields are ignored.
struct AVFilterChannelLayouts* AVFilterLink::out_channel_layouts |
AVFilterFormats* AVFilterLink::out_formats |
AVFilterFormats* AVFilterLink::out_samplerates |
AVFrame* AVFilterLink::partial_buf |
Buffer partially filled with samples to achieve a fixed/minimum size.
int AVFilterLink::partial_buf_size |
Size of the partial buffer to allocate. Must be between min_samples and max_samples.
int AVFilterLink::request_samples |
Audio only, the destination filter sets this to a non-zero value to request that buffers with the given number of samples should be sent to it. AVFilterPad.needs_fifo must also be set on the corresponding input pad. Last buffer before EOF will be padded with silence.
AVRational AVFilterLink::sample_aspect_ratio |
agreed upon sample aspect ratio
int AVFilterLink::sample_rate |
samples per second
AVFilterContext* AVFilterLink::src |
source filter
AVFilterPad* AVFilterLink::srcpad |
output pad on the source filter
int AVFilterLink::status |
Link status. If not zero, all attempts of filter_frame or request_frame will fail with the corresponding code, and if necessary the reference will be destroyed. If request_frame returns an error, the status is set on the corresponding link. It can be set also be set by either the source or the destination filter.
AVRational AVFilterLink::time_base |
Define the time base used by the PTS of the frames/samples which will pass through this link. During the configuration stage, each filter is supposed to change only the output timebase, while the timebase of the input link is assumed to be an unchangeable property.
enum AVMediaType AVFilterLink::type |
filter media type
void* AVFilterLink::video_frame_pool |
A pointer to a FFVideoFramePool struct.
int AVFilterLink::w |
agreed upon image width