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pyglet - libavformat for ffmpeg 4
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# ---------------------------------------------------------------------------- | |
# pyglet | |
# Copyright (c) 2006-2008 Alex Holkner | |
# All rights reserved. | |
# | |
# Redistribution and use in source and binary forms, with or without | |
# modification, are permitted provided that the following conditions | |
# are met: | |
# | |
# * Redistributions of source code must retain the above copyright | |
# notice, this list of conditions and the following disclaimer. | |
# * Redistributions in binary form must reproduce the above copyright | |
# notice, this list of conditions and the following disclaimer in | |
# the documentation and/or other materials provided with the | |
# distribution. | |
# * Neither the name of pyglet nor the names of its | |
# contributors may be used to endorse or promote products | |
# derived from this software without specific prior written | |
# permission. | |
# | |
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN | |
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
# POSSIBILITY OF SUCH DAMAGE. | |
# ---------------------------------------------------------------------------- | |
'''Wrapper for include/libavformat/avformat.h | |
''' | |
from __future__ import unicode_literals | |
from ctypes import (c_int, c_uint16, c_int32, c_int64, c_uint32, c_uint64, | |
c_uint8, c_uint, c_double, c_float, c_ubyte, c_size_t, c_char, c_char_p, | |
c_void_p, addressof, byref, cast, POINTER, CFUNCTYPE, Structure, Union, | |
create_string_buffer, memmove) | |
import pyglet | |
import pyglet.lib | |
from . import libavcodec | |
from . import libavutil | |
avformat = pyglet.lib.load_library('avformat', win32='avformat-58')#! 57 | |
AVSEEK_FLAG_BACKWARD = 1 # ///< seek backward | |
AVSEEK_FLAG_BYTE = 2 # ///< seeking based on position in bytes | |
AVSEEK_FLAG_ANY = 4 # ///< seek to any frame, even non-keyframes | |
AVSEEK_FLAG_FRAME = 8 # ///< seeking based on frame number | |
MAX_REORDER_DELAY = 16 | |
class AVPacketList(Structure): pass | |
class AVInputFormat(Structure): | |
_fields_ = [ | |
('name', c_char_p) | |
] | |
class AVOutputFormat(Structure): pass | |
class AVIOContext(Structure): pass | |
class AVIndexEntry(Structure): pass | |
class AVStreamInfo(Structure): | |
_fields_ = [ | |
('last_dts', c_int64), | |
('duration_gcd', c_int64), | |
('duration_count', c_int), | |
('rfps_duration_sum', c_int64), | |
('duration_error', POINTER(c_double * 2 * (30*12+30+3+6))), | |
('codec_info_duration', c_int64), | |
('codec_info_duration_fields', c_int64), | |
('frame_delay_evidence', c_int), | |
('found_decoder', c_int), | |
('last_duration', c_int64), | |
('fps_first_dts', c_int64), | |
('fps_first_dts_idx', c_int), | |
('fps_last_dts', c_int64), | |
('fps_last_dts_idx', c_int), | |
] | |
class AVProbeData(Structure): | |
_fields_ = [ | |
('filename', c_char_p), | |
('buf', POINTER(c_ubyte)), | |
('buf_size', c_int), | |
('mime_type', c_char_p) | |
] | |
class FFFrac(Structure): pass | |
class AVStreamInternal(Structure): pass | |
class AVFrac(Structure): | |
_fields_ = [ | |
('val', c_int64), | |
('num', c_int64), | |
('den', c_int64), | |
] | |
AVCodecContext = libavcodec.AVCodecContext | |
AVPacketSideData = libavcodec.AVPacketSideData | |
AVPacket = libavcodec.AVPacket | |
AVCodecParserContext = libavcodec.AVCodecParserContext | |
AVCodecParameters = libavcodec.AVCodecParameters | |
AVRational = libavutil.AVRational | |
AVDictionary = libavutil.AVDictionary | |
AVFrame = libavutil.AVFrame | |
class AVStream(Structure): | |
_fields_ = [ | |
('index', c_int), | |
('id', c_int), | |
('codec', POINTER(AVCodecContext)), | |
('priv_data', c_void_p), | |
#!('pts', AVFrac), | |
('time_base', AVRational), | |
('start_time', c_int64), | |
('duration', c_int64), | |
('nb_frames', c_int64), | |
('disposition', c_int), | |
('discard', c_int), | |
('sample_aspect_ratio', AVRational), | |
('metadata', POINTER(AVDictionary)), | |
('avg_frame_rate', AVRational), | |
('attached_pic', AVPacket), | |
('side_data', POINTER(AVPacketSideData)), | |
('nb_side_data', c_int), | |
('event_flags', c_int), | |
#! | |
('r_frame_rate', AVRational), | |
('recommended_encoder_configuration', c_char_p), | |
('codecpar', POINTER(AVCodecParameters)), | |
('info', POINTER(AVStreamInfo)), | |
('pts_wrap_bits', c_int), | |
('first_dts', c_int64), | |
('cur_dts', c_int64), | |
('last_IP_pts', c_int64), | |
('last_IP_duration', c_int), | |
('probe_packets', c_int), | |
('codec_info_nb_frames', c_int), | |
('need_parsing', c_int), | |
('parser', POINTER(AVCodecParserContext)), | |
('last_in_packet_buffer', POINTER(AVPacketList)), | |
('probe_data', AVProbeData), | |
('pts_buffer', c_int64 * (MAX_REORDER_DELAY+1)), | |
('index_entries', POINTER(AVIndexEntry)), | |
('nb_index_entries', c_int), | |
('index_entries_allocated_size', c_uint), | |
#!('r_frame_rate', AVRational), | |
('stream_identifier', c_int), | |
('interleaver_chunk_size', c_int64), | |
('interleaver_chunk_duration', c_int64), | |
('request_probe', c_int), | |
('skip_to_keyframe', c_int), | |
('skip_samples', c_int), | |
('start_skip_samples', c_int64), | |
('first_discard_sample', c_int64), | |
('last_discard_sample', c_int64), | |
('nb_decoded_frames', c_int), | |
('mux_ts_offset', c_int64), | |
('pts_wrap_reference', c_int64), | |
('pts_wrap_behavior', c_int), | |
('update_initial_durations_done', c_int), | |
('pts_reorder_error', c_int64 * (MAX_REORDER_DELAY+1)), | |
('pts_reorder_error_count', c_uint8 * (MAX_REORDER_DELAY+1)), | |
('last_dts_for_order_check', c_int64), | |
('dts_ordered', c_uint8), | |
('dts_misordered', c_uint8), | |
('inject_global_side_data', c_int), | |
#! | |
('display_aspect_ratio', AVRational), | |
#!('priv_pts', POINTER(FFFrac)), | |
('internal', POINTER(AVStreamInternal)), | |
#!('codecpar', POINTER(AVCodecParameters)), | |
] | |
class AVProgram(Structure): pass | |
class AVChapter(Structure): pass | |
class AVFormatInternal(Structure): pass | |
class AVIOInterruptCB(Structure): | |
_fields_ = [ | |
('callback', CFUNCTYPE(c_int, c_void_p)), | |
('opaque', c_void_p) | |
] | |
AVClass = libavutil.AVClass | |
AVCodec = libavcodec.AVCodec | |
class AVFormatContext(Structure): pass | |
AVFormatContext._fields_ = [ | |
('av_class', POINTER(AVClass)), | |
('iformat', POINTER(AVInputFormat)), | |
('oformat', POINTER(AVOutputFormat)), | |
('priv_data', c_void_p), | |
('pb', POINTER(AVIOContext)), | |
('ctx_flags', c_int), | |
('nb_streams', c_uint), | |
('streams', POINTER(POINTER(AVStream))), | |
('filename', c_char*1024), #Deprecated | |
('url', c_char_p), | |
('start_time', c_int64), | |
('duration', c_int64), | |
('bit_rate', c_int64), | |
('packet_size', c_uint), | |
('max_delay', c_int), | |
('flags', c_int), | |
('probesize', c_int64), | |
('max_analyze_duration', c_int64), | |
('key', POINTER(c_uint8)), | |
('keylen', c_int), | |
('nb_programs', c_uint), | |
('programs', POINTER(POINTER(AVProgram))), | |
('video_codec_id', c_int), | |
('audio_codec_id', c_int), | |
('subtitle_codec_id', c_int), | |
('max_index_size', c_uint), | |
('max_picture_buffer', c_uint), | |
('nb_chapters', c_uint), | |
('chapters', POINTER(POINTER(AVChapter))), | |
('metadata', POINTER(AVDictionary)), | |
('start_time_realtime', c_int64), | |
('fps_probe_size', c_int), | |
('error_recognition', c_int), | |
('interrupt_callback', AVIOInterruptCB), | |
('debug', c_int), | |
('max_interleave_delta', c_int64), | |
('strict_std_compliance', c_int), | |
('event_flags', c_int), | |
('max_ts_probe', c_int), | |
('avoid_negative_ts', c_int), | |
('ts_id', c_int), | |
('audio_preload', c_int), | |
('max_chunk_duration', c_int), | |
('max_chunk_size', c_int), | |
('use_wallclock_as_timestamps', c_int), | |
('avio_flags', c_int), | |
('duration_estimation_method', c_uint), #c_uint8 | |
('skip_initial_bytes', c_int64), | |
('correct_ts_overflow', c_uint), | |
('seek2any', c_int), | |
('flush_packets', c_int), | |
('probe_score', c_int), | |
('format_probesize', c_int), | |
('codec_whitelist', c_char_p), | |
('format_whitelist', c_char_p), | |
('internal', POINTER(AVFormatInternal)), | |
('io_repositioned', c_int), | |
('video_codec', POINTER(AVCodec)), | |
('audio_codec', POINTER(AVCodec)), | |
('subtitle_codec', POINTER(AVCodec)), | |
('data_codec', POINTER(AVCodec)), | |
('metadata_header_padding', c_int), | |
('opaque', c_void_p), | |
('control_message_cb', CFUNCTYPE(c_int, | |
POINTER(AVFormatContext), c_int, c_void_p, | |
c_size_t)), | |
('output_ts_offset', c_int64), | |
('dump_separator', POINTER(c_uint8)), | |
('data_codec_id', c_int), | |
#! one more in here? | |
('protocol_whitelist', c_char_p), | |
('io_open', CFUNCTYPE(c_int, | |
POINTER(AVFormatContext), | |
POINTER(POINTER(AVIOContext)), | |
c_char_p, c_int, | |
POINTER(POINTER(AVDictionary)))), | |
('io_close', CFUNCTYPE(None, | |
POINTER(AVFormatContext), POINTER(AVIOContext))), | |
('protocol_blacklist', c_char_p), | |
('max_streams', c_int) | |
] | |
avformat.av_register_all.restype = None | |
avformat.av_find_input_format.restype = c_int | |
avformat.av_find_input_format.argtypes = [c_int] | |
avformat.avformat_open_input.restype = c_int | |
avformat.avformat_open_input.argtypes = [ | |
POINTER(POINTER(AVFormatContext)), | |
c_char_p, | |
POINTER(AVInputFormat), | |
POINTER(POINTER(AVDictionary))] | |
avformat.avformat_find_stream_info.restype = c_int | |
avformat.avformat_find_stream_info.argtypes = [ | |
POINTER(AVFormatContext), | |
POINTER(POINTER(AVDictionary))] | |
avformat.avformat_close_input.restype = None | |
avformat.avformat_close_input.argtypes = [ | |
POINTER(POINTER(AVFormatContext))] | |
avformat.av_read_frame.restype = c_int | |
avformat.av_read_frame.argtypes = [POINTER(AVFormatContext), | |
POINTER(AVPacket)] | |
avformat.av_seek_frame.restype = c_int | |
avformat.av_seek_frame.argtypes = [POINTER(AVFormatContext), | |
c_int, c_int64, c_int] | |
avformat.avformat_seek_file.restype = c_int | |
avformat.avformat_seek_file.argtypes = [POINTER(AVFormatContext), | |
c_int, c_int64, c_int64, c_int64, c_int] | |
avformat.av_guess_frame_rate.restype = AVRational | |
avformat.av_guess_frame_rate.argtypes = [POINTER(AVFormatContext), | |
POINTER(AVStream), POINTER(AVFrame)] | |
__all__ = [ | |
'avformat', | |
'AVSEEK_FLAG_BACKWARD', | |
'AVSEEK_FLAG_BYTE', | |
'AVSEEK_FLAG_ANY', | |
'AVSEEK_FLAG_FRAME', | |
'AVFormatContext' | |
] |
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