Merge commit 'c95169f0ec68bdeeabc5fde8aa4076f406242524'

* commit 'c95169f0ec68bdeeabc5fde8aa4076f406242524':
  build: Move cli tool sources to a separate subdirectory

Merged-by: James Almer <jamrial@gmail.com>

1 files changed, 679 insertions, 0 deletions

diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
new file mode 100644
index 0000000..f6c76bc
--- /dev/null
+++ b/fftools/ffmpeg.h
@@ -0,0 +1,679 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef FFTOOLS_FFMPEG_H
+#define FFTOOLS_FFMPEG_H
+
+#include "config.h"
+
+#include <stdint.h>
+#include <stdio.h>
+#include <signal.h>
+
+#if HAVE_PTHREADS
+#include <pthread.h>
+#endif
+
+#include "cmdutils.h"
+
+#include "libavformat/avformat.h"
+#include "libavformat/avio.h"
+
+#include "libavcodec/avcodec.h"
+
+#include "libavfilter/avfilter.h"
+
+#include "libavutil/avutil.h"
+#include "libavutil/dict.h"
+#include "libavutil/eval.h"
+#include "libavutil/fifo.h"
+#include "libavutil/hwcontext.h"
+#include "libavutil/pixfmt.h"
+#include "libavutil/rational.h"
+#include "libavutil/threadmessage.h"
+
+#include "libswresample/swresample.h"
+
+#define VSYNC_AUTO       -1
+#define VSYNC_PASSTHROUGH 0
+#define VSYNC_CFR         1
+#define VSYNC_VFR         2
+#define VSYNC_VSCFR       0xfe
+#define VSYNC_DROP        0xff
+
+#define MAX_STREAMS 1024    /* arbitrary sanity check value */
+
+enum HWAccelID {
+    HWACCEL_NONE = 0,
+    HWACCEL_AUTO,
+    HWACCEL_VDPAU,
+    HWACCEL_DXVA2,
+    HWACCEL_VDA,
+    HWACCEL_VIDEOTOOLBOX,
+    HWACCEL_QSV,
+    HWACCEL_VAAPI,
+    HWACCEL_CUVID,
+    HWACCEL_D3D11VA,
+};
+
+typedef struct HWAccel {
+    const char *name;
+    int (*init)(AVCodecContext *s);
+    enum HWAccelID id;
+    enum AVPixelFormat pix_fmt;
+    enum AVHWDeviceType device_type;
+} HWAccel;
+
+typedef struct HWDevice {
+    char *name;
+    enum AVHWDeviceType type;
+    AVBufferRef *device_ref;
+} HWDevice;
+
+/* select an input stream for an output stream */
+typedef struct StreamMap {
+    int disabled;           /* 1 is this mapping is disabled by a negative map */
+    int file_index;
+    int stream_index;
+    int sync_file_index;
+    int sync_stream_index;
+    char *linklabel;       /* name of an output link, for mapping lavfi outputs */
+} StreamMap;
+
+typedef struct {
+    int  file_idx,  stream_idx,  channel_idx; // input
+    int ofile_idx, ostream_idx;               // output
+} AudioChannelMap;
+
+typedef struct OptionsContext {
+    OptionGroup *g;
+
+    /* input/output options */
+    int64_t start_time;
+    int64_t start_time_eof;
+    int seek_timestamp;
+    const char *format;
+
+    SpecifierOpt *codec_names;
+    int        nb_codec_names;
+    SpecifierOpt *audio_channels;
+    int        nb_audio_channels;
+    SpecifierOpt *audio_sample_rate;
+    int        nb_audio_sample_rate;
+    SpecifierOpt *frame_rates;
+    int        nb_frame_rates;
+    SpecifierOpt *frame_sizes;
+    int        nb_frame_sizes;
+    SpecifierOpt *frame_pix_fmts;
+    int        nb_frame_pix_fmts;
+
+    /* input options */
+    int64_t input_ts_offset;
+    int loop;
+    int rate_emu;
+    int accurate_seek;
+    int thread_queue_size;
+
+    SpecifierOpt *ts_scale;
+    int        nb_ts_scale;
+    SpecifierOpt *dump_attachment;
+    int        nb_dump_attachment;
+    SpecifierOpt *hwaccels;
+    int        nb_hwaccels;
+    SpecifierOpt *hwaccel_devices;
+    int        nb_hwaccel_devices;
+    SpecifierOpt *hwaccel_output_formats;
+    int        nb_hwaccel_output_formats;
+    SpecifierOpt *autorotate;
+    int        nb_autorotate;
+
+    /* output options */
+    StreamMap *stream_maps;
+    int     nb_stream_maps;
+    AudioChannelMap *audio_channel_maps; /* one info entry per -map_channel */
+    int           nb_audio_channel_maps; /* number of (valid) -map_channel settings */
+    int metadata_global_manual;
+    int metadata_streams_manual;
+    int metadata_chapters_manual;
+    const char **attachments;
+    int       nb_attachments;
+
+    int chapters_input_file;
+
+    int64_t recording_time;
+    int64_t stop_time;
+    uint64_t limit_filesize;
+    float mux_preload;
+    float mux_max_delay;
+    int shortest;
+
+    int video_disable;
+    int audio_disable;
+    int subtitle_disable;
+    int data_disable;
+
+    /* indexed by output file stream index */
+    int   *streamid_map;
+    int nb_streamid_map;
+
+    SpecifierOpt *metadata;
+    int        nb_metadata;
+    SpecifierOpt *max_frames;
+    int        nb_max_frames;
+    SpecifierOpt *bitstream_filters;
+    int        nb_bitstream_filters;
+    SpecifierOpt *codec_tags;
+    int        nb_codec_tags;
+    SpecifierOpt *sample_fmts;
+    int        nb_sample_fmts;
+    SpecifierOpt *qscale;
+    int        nb_qscale;
+    SpecifierOpt *forced_key_frames;
+    int        nb_forced_key_frames;
+    SpecifierOpt *force_fps;
+    int        nb_force_fps;
+    SpecifierOpt *frame_aspect_ratios;
+    int        nb_frame_aspect_ratios;
+    SpecifierOpt *rc_overrides;
+    int        nb_rc_overrides;
+    SpecifierOpt *intra_matrices;
+    int        nb_intra_matrices;
+    SpecifierOpt *inter_matrices;
+    int        nb_inter_matrices;
+    SpecifierOpt *chroma_intra_matrices;
+    int        nb_chroma_intra_matrices;
+    SpecifierOpt *top_field_first;
+    int        nb_top_field_first;
+    SpecifierOpt *metadata_map;
+    int        nb_metadata_map;
+    SpecifierOpt *presets;
+    int        nb_presets;
+    SpecifierOpt *copy_initial_nonkeyframes;
+    int        nb_copy_initial_nonkeyframes;
+    SpecifierOpt *copy_prior_start;
+    int        nb_copy_prior_start;
+    SpecifierOpt *filters;
+    int        nb_filters;
+    SpecifierOpt *filter_scripts;
+    int        nb_filter_scripts;
+    SpecifierOpt *reinit_filters;
+    int        nb_reinit_filters;
+    SpecifierOpt *fix_sub_duration;
+    int        nb_fix_sub_duration;
+    SpecifierOpt *canvas_sizes;
+    int        nb_canvas_sizes;
+    SpecifierOpt *pass;
+    int        nb_pass;
+    SpecifierOpt *passlogfiles;
+    int        nb_passlogfiles;
+    SpecifierOpt *max_muxing_queue_size;
+    int        nb_max_muxing_queue_size;
+    SpecifierOpt *guess_layout_max;
+    int        nb_guess_layout_max;
+    SpecifierOpt *apad;
+    int        nb_apad;
+    SpecifierOpt *discard;
+    int        nb_discard;
+    SpecifierOpt *disposition;
+    int        nb_disposition;
+    SpecifierOpt *program;
+    int        nb_program;
+    SpecifierOpt *time_bases;
+    int        nb_time_bases;
+    SpecifierOpt *enc_time_bases;
+    int        nb_enc_time_bases;
+} OptionsContext;
+
+typedef struct InputFilter {
+    AVFilterContext    *filter;
+    struct InputStream *ist;
+    struct FilterGraph *graph;
+    uint8_t            *name;
+    enum AVMediaType    type;   // AVMEDIA_TYPE_SUBTITLE for sub2video
+
+    AVFifoBuffer *frame_queue;
+
+    // parameters configured for this input
+    int format;
+
+    int width, height;
+    AVRational sample_aspect_ratio;
+
+    int sample_rate;
+    int channels;
+    uint64_t channel_layout;
+
+    AVBufferRef *hw_frames_ctx;
+
+    int eof;
+} InputFilter;
+
+typedef struct OutputFilter {
+    AVFilterContext     *filter;
+    struct OutputStream *ost;
+    struct FilterGraph  *graph;
+    uint8_t             *name;
+
+    /* temporary storage until stream maps are processed */
+    AVFilterInOut       *out_tmp;
+    enum AVMediaType     type;
+
+    /* desired output stream properties */
+    int width, height;
+    AVRational frame_rate;
+    int format;
+    int sample_rate;
+    uint64_t channel_layout;
+
+    // those are only set if no format is specified and the encoder gives us multiple options
+    int *formats;
+    uint64_t *channel_layouts;
+    int *sample_rates;
+} OutputFilter;
+
+typedef struct FilterGraph {
+    int            index;
+    const char    *graph_desc;
+
+    AVFilterGraph *graph;
+    int reconfiguration;
+
+    InputFilter   **inputs;
+    int          nb_inputs;
+    OutputFilter **outputs;
+    int         nb_outputs;
+} FilterGraph;
+
+typedef struct InputStream {
+    int file_index;
+    AVStream *st;
+    int discard;             /* true if stream data should be discarded */
+    int user_set_discard;
+    int decoding_needed;     /* non zero if the packets must be decoded in 'raw_fifo', see DECODING_FOR_* */
+#define DECODING_FOR_OST    1
+#define DECODING_FOR_FILTER 2
+
+    AVCodecContext *dec_ctx;
+    AVCodec *dec;
+    AVFrame *decoded_frame;
+    AVFrame *filter_frame; /* a ref of decoded_frame, to be sent to filters */
+
+    int64_t       start;     /* time when read started */
+    /* predicted dts of the next packet read for this stream or (when there are
+     * several frames in a packet) of the next frame in current packet (in AV_TIME_BASE units) */
+    int64_t       next_dts;
+    int64_t       dts;       ///< dts of the last packet read for this stream (in AV_TIME_BASE units)
+
+    int64_t       next_pts;  ///< synthetic pts for the next decode frame (in AV_TIME_BASE units)
+    int64_t       pts;       ///< current pts of the decoded frame  (in AV_TIME_BASE units)
+    int           wrap_correction_done;
+
+    int64_t filter_in_rescale_delta_last;
+
+    int64_t min_pts; /* pts with the smallest value in a current stream */
+    int64_t max_pts; /* pts with the higher value in a current stream */
+
+    // when forcing constant input framerate through -r,
+    // this contains the pts that will be given to the next decoded frame
+    int64_t cfr_next_pts;
+
+    int64_t nb_samples; /* number of samples in the last decoded audio frame before looping */
+
+    double ts_scale;
+    int saw_first_ts;
+    AVDictionary *decoder_opts;
+    AVRational framerate;               /* framerate forced with -r */
+    int top_field_first;
+    int guess_layout_max;
+
+    int autorotate;
+
+    int fix_sub_duration;
+    struct { /* previous decoded subtitle and related variables */
+        int got_output;
+        int ret;
+        AVSubtitle subtitle;
+    } prev_sub;
+
+    struct sub2video {
+        int64_t last_pts;
+        int64_t end_pts;
+        AVFifoBuffer *sub_queue;    ///< queue of AVSubtitle* before filter init
+        AVFrame *frame;
+        int w, h;
+    } sub2video;
+
+    int dr1;
+
+    /* decoded data from this stream goes into all those filters
+     * currently video and audio only */
+    InputFilter **filters;
+    int        nb_filters;
+
+    int reinit_filters;
+
+    /* hwaccel options */
+    enum HWAccelID hwaccel_id;
+    char  *hwaccel_device;
+    enum AVPixelFormat hwaccel_output_format;
+
+    /* hwaccel context */
+    enum HWAccelID active_hwaccel_id;
+    void  *hwaccel_ctx;
+    void (*hwaccel_uninit)(AVCodecContext *s);
+    int  (*hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags);
+    int  (*hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame);
+    enum AVPixelFormat hwaccel_pix_fmt;
+    enum AVPixelFormat hwaccel_retrieved_pix_fmt;
+    AVBufferRef *hw_frames_ctx;
+
+    /* stats */
+    // combined size of all the packets read
+    uint64_t data_size;
+    /* number of packets successfully read for this stream */
+    uint64_t nb_packets;
+    // number of frames/samples retrieved from the decoder
+    uint64_t frames_decoded;
+    uint64_t samples_decoded;
+
+    int64_t *dts_buffer;
+    int nb_dts_buffer;
+
+    int got_output;
+} InputStream;
+
+typedef struct InputFile {
+    AVFormatContext *ctx;
+    int eof_reached;      /* true if eof reached */
+    int eagain;           /* true if last read attempt returned EAGAIN */
+    int ist_index;        /* index of first stream in input_streams */
+    int loop;             /* set number of times input stream should be looped */
+    int64_t duration;     /* actual duration of the longest stream in a file
+                             at the moment when looping happens */
+    AVRational time_base; /* time base of the duration */
+    int64_t input_ts_offset;
+
+    int64_t ts_offset;
+    int64_t last_ts;
+    int64_t start_time;   /* user-specified start time in AV_TIME_BASE or AV_NOPTS_VALUE */
+    int seek_timestamp;
+    int64_t recording_time;
+    int nb_streams;       /* number of stream that ffmpeg is aware of; may be different
+                             from ctx.nb_streams if new streams appear during av_read_frame() */
+    int nb_streams_warn;  /* number of streams that the user was warned of */
+    int rate_emu;
+    int accurate_seek;
+
+#if HAVE_PTHREADS
+    AVThreadMessageQueue *in_thread_queue;
+    pthread_t thread;           /* thread reading from this file */
+    int non_blocking;           /* reading packets from the thread should not block */
+    int joined;                 /* the thread has been joined */
+    int thread_queue_size;      /* maximum number of queued packets */
+#endif
+} InputFile;
+
+enum forced_keyframes_const {
+    FKF_N,
+    FKF_N_FORCED,
+    FKF_PREV_FORCED_N,
+    FKF_PREV_FORCED_T,
+    FKF_T,
+    FKF_NB
+};
+
+#define ABORT_ON_FLAG_EMPTY_OUTPUT (1 <<  0)
+
+extern const char *const forced_keyframes_const_names[];
+
+typedef enum {
+    ENCODER_FINISHED = 1,
+    MUXER_FINISHED = 2,
+} OSTFinished ;
+
+typedef struct OutputStream {
+    int file_index;          /* file index */
+    int index;               /* stream index in the output file */
+    int source_index;        /* InputStream index */
+    AVStream *st;            /* stream in the output file */
+    int encoding_needed;     /* true if encoding needed for this stream */
+    int frame_number;
+    /* input pts and corresponding output pts
+       for A/V sync */
+    struct InputStream *sync_ist; /* input stream to sync against */
+    int64_t sync_opts;       /* output frame counter, could be changed to some true timestamp */ // FIXME look at frame_number
+    /* pts of the first frame encoded for this stream, used for limiting
+     * recording time */
+    int64_t first_pts;
+    /* dts of the last packet sent to the muxer */
+    int64_t last_mux_dts;
+    // the timebase of the packets sent to the muxer
+    AVRational mux_timebase;
+    AVRational enc_timebase;
+
+    int                    nb_bitstream_filters;
+    AVBSFContext            **bsf_ctx;
+
+    AVCodecContext *enc_ctx;
+    AVCodecParameters *ref_par; /* associated input codec parameters with encoders options applied */
+    AVCodec *enc;
+    int64_t max_frames;
+    AVFrame *filtered_frame;
+    AVFrame *last_frame;
+    int last_dropped;
+    int last_nb0_frames[3];
+
+    void  *hwaccel_ctx;
+
+    /* video only */
+    AVRational frame_rate;
+    int is_cfr;
+    int force_fps;
+    int top_field_first;
+    int rotate_overridden;
+    double rotate_override_value;
+
+    AVRational frame_aspect_ratio;
+
+    /* forced key frames */
+    int64_t *forced_kf_pts;
+    int forced_kf_count;
+    int forced_kf_index;
+    char *forced_keyframes;
+    AVExpr *forced_keyframes_pexpr;
+    double forced_keyframes_expr_const_values[FKF_NB];
+
+    /* audio only */
+    int *audio_channels_map;             /* list of the channels id to pick from the source stream */
+    int audio_channels_mapped;           /* number of channels in audio_channels_map */
+
+    char *logfile_prefix;
+    FILE *logfile;
+
+    OutputFilter *filter;
+    char *avfilter;
+    char *filters;         ///< filtergraph associated to the -filter option
+    char *filters_script;  ///< filtergraph script associated to the -filter_script option
+
+    AVDictionary *encoder_opts;
+    AVDictionary *sws_dict;
+    AVDictionary *swr_opts;
+    AVDictionary *resample_opts;
+    char *apad;
+    OSTFinished finished;        /* no more packets should be written for this stream */
+    int unavailable;                     /* true if the steram is unavailable (possibly temporarily) */
+    int stream_copy;
+
+    // init_output_stream() has been called for this stream
+    // The encoder and the bitstream filters have been initialized and the stream
+    // parameters are set in the AVStream.
+    int initialized;
+
+    int inputs_done;
+
+    const char *attachment_filename;
+    int copy_initial_nonkeyframes;
+    int copy_prior_start;
+    char *disposition;
+
+    int keep_pix_fmt;
+
+    AVCodecParserContext *parser;
+    AVCodecContext       *parser_avctx;
+
+    /* stats */
+    // combined size of all the packets written
+    uint64_t data_size;
+    // number of packets send to the muxer
+    uint64_t packets_written;
+    // number of frames/samples sent to the encoder
+    uint64_t frames_encoded;
+    uint64_t samples_encoded;
+
+    /* packet quality factor */
+    int quality;
+
+    int max_muxing_queue_size;
+
+    /* the packets are buffered here until the muxer is ready to be initialized */
+    AVFifoBuffer *muxing_queue;
+
+    /* packet picture type */
+    int pict_type;
+
+    /* frame encode sum of squared error values */
+    int64_t error[4];
+} OutputStream;
+
+typedef struct OutputFile {
+    AVFormatContext *ctx;
+    AVDictionary *opts;
+    int ost_index;       /* index of the first stream in output_streams */
+    int64_t recording_time;  ///< desired length of the resulting file in microseconds == AV_TIME_BASE units
+    int64_t start_time;      ///< start time in microseconds == AV_TIME_BASE units
+    uint64_t limit_filesize; /* filesize limit expressed in bytes */
+
+    int shortest;
+
+    int header_written;
+} OutputFile;
+
+extern InputStream **input_streams;
+extern int        nb_input_streams;
+extern InputFile   **input_files;
+extern int        nb_input_files;
+
+extern OutputStream **output_streams;
+extern int         nb_output_streams;
+extern OutputFile   **output_files;
+extern int         nb_output_files;
+
+extern FilterGraph **filtergraphs;
+extern int        nb_filtergraphs;
+
+extern char *vstats_filename;
+extern char *sdp_filename;
+
+extern float audio_drift_threshold;
+extern float dts_delta_threshold;
+extern float dts_error_threshold;
+
+extern int audio_volume;
+extern int audio_sync_method;
+extern int video_sync_method;
+extern float frame_drop_threshold;
+extern int do_benchmark;
+extern int do_benchmark_all;
+extern int do_deinterlace;
+extern int do_hex_dump;
+extern int do_pkt_dump;
+extern int copy_ts;
+extern int start_at_zero;
+extern int copy_tb;
+extern int debug_ts;
+extern int exit_on_error;
+extern int abort_on_flags;
+extern int print_stats;
+extern int qp_hist;
+extern int stdin_interaction;
+extern int frame_bits_per_raw_sample;
+extern AVIOContext *progress_avio;
+extern float max_error_rate;
+extern char *videotoolbox_pixfmt;
+
+extern int filter_nbthreads;
+extern int filter_complex_nbthreads;
+extern int vstats_version;
+
+extern const AVIOInterruptCB int_cb;
+
+extern const OptionDef options[];
+extern const HWAccel hwaccels[];
+extern int hwaccel_lax_profile_check;
+extern AVBufferRef *hw_device_ctx;
+#if CONFIG_QSV
+extern char *qsv_device;
+#endif
+extern HWDevice *filter_hw_device;
+
+
+void term_init(void);
+void term_exit(void);
+
+void reset_options(OptionsContext *o, int is_input);
+void show_usage(void);
+
+void opt_output_file(void *optctx, const char *filename);
+
+void remove_avoptions(AVDictionary **a, AVDictionary *b);
+void assert_avoptions(AVDictionary *m);
+
+int guess_input_channel_layout(InputStream *ist);
+
+enum AVPixelFormat choose_pixel_fmt(AVStream *st, AVCodecContext *avctx, AVCodec *codec, enum AVPixelFormat target);
+void choose_sample_fmt(AVStream *st, AVCodec *codec);
+
+int configure_filtergraph(FilterGraph *fg);
+int configure_output_filter(FilterGraph *fg, OutputFilter *ofilter, AVFilterInOut *out);
+void check_filter_outputs(void);
+int ist_in_filtergraph(FilterGraph *fg, InputStream *ist);
+int filtergraph_is_simple(FilterGraph *fg);
+int init_simple_filtergraph(InputStream *ist, OutputStream *ost);
+int init_complex_filtergraph(FilterGraph *fg);
+
+void sub2video_update(InputStream *ist, AVSubtitle *sub);
+
+int ifilter_parameters_from_frame(InputFilter *ifilter, const AVFrame *frame);
+
+int ffmpeg_parse_options(int argc, char **argv);
+
+int vda_init(AVCodecContext *s);
+int videotoolbox_init(AVCodecContext *s);
+int qsv_init(AVCodecContext *s);
+int cuvid_init(AVCodecContext *s);
+
+HWDevice *hw_device_get_by_name(const char *name);
+int hw_device_init_from_string(const char *arg, HWDevice **dev);
+void hw_device_free_all(void);
+
+int hw_device_setup_for_decode(InputStream *ist);
+int hw_device_setup_for_encode(OutputStream *ost);
+
+int hwaccel_decode_init(AVCodecContext *avctx);
+
+#endif /* FFTOOLS_FFMPEG_H */