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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Create Video!"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"pip install opencv-python opencv-python-headless # If you do not need GUI features\n"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Creating the demo\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"import os\n",
"import subprocess\n",
"import logging\n",
"from glob import glob\n",
"import re\n",
"\n",
"# Configure logging\n",
"logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')\n",
"logger = logging.getLogger(__name__)\n",
"\n",
"def create_near_lossless_h265_video(input_folder, output_file, fps=30, frames_per_image=3, crf=10):\n",
" if not os.path.exists(input_folder):\n",
" logger.error(f\"Input folder '{input_folder}' does not exist.\")\n",
" return\n",
"\n",
" png_files = sorted(glob(os.path.join(input_folder, '*.png')))\n",
" if not png_files:\n",
" logger.error(f\"No PNG files found in {input_folder}\")\n",
" return\n",
"\n",
" num_images = len(png_files)\n",
" logger.info(f\"Found {num_images} PNG files.\")\n",
"\n",
" # Calculate expected duration\n",
" expected_duration = (num_images * frames_per_image) / fps\n",
" logger.info(f\"Expected duration: {expected_duration:.2f} seconds\")\n",
"\n",
" # FFmpeg command for near-lossless 10-bit H.265 encoding\n",
" ffmpeg_command = [\n",
" 'ffmpeg',\n",
" '-framerate', f'{1/(frames_per_image/fps)}', # Input framerate\n",
" '-i', os.path.join(input_folder, '%*.png'), # Input pattern for all PNG files\n",
" '-fps_mode', 'vfr',\n",
" '-pix_fmt', 'yuv420p10le', # 10-bit pixel format\n",
" '-c:v', 'libx265', # Use libx265 encoder\n",
" '-preset', 'slow', # Slowest preset for best compression efficiency\n",
" '-crf', str(crf), # Constant Rate Factor (0-51, lower is higher quality)\n",
" '-profile:v', 'main10', # 10-bit profile\n",
" '-x265-params', f\"log-level=error:keyint={2*fps}:min-keyint={fps}:scenecut=0\", # Ensure consistent encoding\n",
" '-tag:v', 'hvc1',\n",
" '-y',\n",
" output_file\n",
" ]\n",
"\n",
" try:\n",
" logger.info(\"Starting near-lossless 10-bit video creation...\")\n",
" process = subprocess.Popen(ffmpeg_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)\n",
" \n",
" encoding_speed = None\n",
" \n",
" for line in process.stderr:\n",
" print(line, end='') # Print FFmpeg output in real-time\n",
" \n",
" speed_match = re.search(r'speed=\\s*([\\d.]+)x', line)\n",
" if speed_match:\n",
" encoding_speed = float(speed_match.group(1))\n",
" \n",
" process.wait()\n",
" \n",
" if encoding_speed:\n",
" logger.info(f\"Encoding speed: {encoding_speed:.2f}x\")\n",
" \n",
" if process.returncode == 0:\n",
" logger.info(f\"Video created successfully: {output_file}\")\n",
" \n",
" probe_command = ['ffprobe', '-v', 'error', '-show_entries', 'stream=codec_name,width,height,duration,bit_rate,profile', '-of', 'default=noprint_wrappers=1', output_file]\n",
" probe_result = subprocess.run(probe_command, capture_output=True, text=True)\n",
" logger.info(f\"Video properties:\\n{probe_result.stdout}\")\n",
" \n",
" duration_command = ['ffprobe', '-v', 'error', '-show_entries', 'format=duration', '-of', 'default=noprint_wrappers=1:nokey=1', output_file]\n",
" duration_result = subprocess.run(duration_command, capture_output=True, text=True)\n",
" actual_duration = float(duration_result.stdout.strip())\n",
" logger.info(f\"Actual video duration: {actual_duration:.2f} seconds\")\n",
" if abs(actual_duration - expected_duration) > 1:\n",
" logger.warning(f\"Video duration mismatch. Expected: {expected_duration:.2f}, Actual: {actual_duration:.2f}\")\n",
" else:\n",
" logger.info(\"Video duration check passed.\")\n",
" else:\n",
" logger.error(f\"Error during video creation. FFmpeg returned code {process.returncode}\")\n",
"\n",
" except subprocess.CalledProcessError as e:\n",
" logger.error(f\"Error during video creation: {e}\")\n",
" logger.error(f\"FFmpeg error output:\\n{e.stderr}\")\n",
"\n",
"if __name__ == \"__main__\":\n",
" input_folder = 'train'\n",
" output_file = 'near_lossless_output.mp4'\n",
" fps = 30\n",
" frames_per_image = 3\n",
" crf = 18 # Very low CRF for near-lossless quality (0 is lossless, but often overkill)\n",
"\n",
" create_near_lossless_h265_video(input_folder, output_file, fps, frames_per_image, crf)\n"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Transfer File"
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {},
"outputs": [
{
"name": "stderr",
"output_type": "stream",
"text": [
"2024-08-12 22:25:58,907 - INFO - Found 1000 PNG files.\n",
"2024-08-12 22:25:58,908 - INFO - Expected duration: 50.00 seconds\n",
"2024-08-12 22:25:58,909 - INFO - Using ProRes codec (near-lossless)\n",
"2024-08-12 22:25:58,909 - INFO - Starting high-quality video creation with prores codec...\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"ffmpeg version 7.0.2 Copyright (c) 2000-2024 the FFmpeg developers\n",
" built with Apple clang version 15.0.0 (clang-1500.3.9.4)\n",
" configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/7.0.2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags='-Wl,-ld_classic' --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-libharfbuzz --enable-libjxl --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-audiotoolbox --enable-neon\n",
" libavutil 59. 8.100 / 59. 8.100\n",
" libavcodec 61. 3.100 / 61. 3.100\n",
" libavformat 61. 1.100 / 61. 1.100\n",
" libavdevice 61. 1.100 / 61. 1.100\n",
" libavfilter 10. 1.100 / 10. 1.100\n",
" libswscale 8. 1.100 / 8. 1.100\n",
" libswresample 5. 1.100 / 5. 1.100\n",
" libpostproc 58. 1.100 / 58. 1.100\n",
"[image2 @ 0x13d61ef40] Pattern type 'glob_sequence' is deprecated: use pattern_type 'glob' instead\n",
"Input #0, image2, from 'train/%*.png':\n",
" Duration: 00:00:50.00, start: 0.000000, bitrate: N/A\n",
" Stream #0:0: Video: png, rgb24(pc, gbr/unknown/unknown), 768x1024, 20 fps, 20 tbr, 20 tbn\n",
"Stream mapping:\n",
" Stream #0:0 -> #0:0 (png (native) -> prores (prores_ks))\n",
"Press [q] to stop, [?] for help\n",
"Output #0, mov, to 'high_quality_output.mov':\n",
" Metadata:\n",
" encoder : Lavf61.1.100\n",
" Stream #0:0: Video: prores (Proxy) (apco / 0x6F637061), yuv444p10le(progressive), 768x1024, q=2-31, 200 kb/s, 20 fps, 10240 tbn\n",
" Metadata:\n",
" encoder : Lavc61.3.100 prores_ks\n",
"frame= 56 fps=0.0 q=-0.0 size= 7936KiB time=00:00:02.80 bitrate=23218.6kbits/s speed=5.56x \n",
"frame= 125 fps=124 q=-0.0 size= 17664KiB time=00:00:06.25 bitrate=23152.6kbits/s speed=6.19x \n",
"frame= 199 fps=131 q=-0.0 size= 28416KiB time=00:00:09.95 bitrate=23395.4kbits/s speed=6.57x \n",
"frame= 278 fps=138 q=-0.0 size= 39936KiB time=00:00:13.90 bitrate=23536.4kbits/s speed=6.88x \n",
"frame= 352 fps=139 q=-0.0 size= 50944KiB time=00:00:17.60 bitrate=23712.1kbits/s speed=6.97x \n",
"frame= 419 fps=138 q=-0.0 size= 60416KiB time=00:00:20.95 bitrate=23624.3kbits/s speed=6.92x \n",
"frame= 485 fps=137 q=-0.0 size= 70144KiB time=00:00:24.25 bitrate=23695.7kbits/s speed=6.87x \n",
"frame= 561 fps=139 q=-0.0 size= 81152KiB time=00:00:28.05 bitrate=23700.4kbits/s speed=6.96x \n",
"frame= 631 fps=139 q=-0.0 size= 91136KiB time=00:00:31.55 bitrate=23663.6kbits/s speed=6.96x \n",
"frame= 711 fps=141 q=-0.0 size= 102912KiB time=00:00:35.55 bitrate=23714.6kbits/s speed=7.06x \n",
"frame= 784 fps=141 q=-0.0 size= 113408KiB time=00:00:39.20 bitrate=23700.0kbits/s speed=7.07x \n",
"frame= 864 fps=143 q=-0.0 size= 124928KiB time=00:00:43.20 bitrate=23690.1kbits/s speed=7.14x \n"
]
},
{
"name": "stderr",
"output_type": "stream",
"text": [
"2024-08-12 22:26:05,979 - INFO - Encoding speed: 7.3100x\n",
"2024-08-12 22:26:05,980 - INFO - Video created successfully: high_quality_output.mov\n",
"2024-08-12 22:26:06,034 - INFO - Video properties:\n",
"codec_name=prores\n",
"width=768\n",
"height=1024\n",
"duration=50.000000\n",
"bit_rate=23781117\n",
"\n",
"2024-08-12 22:26:06,076 - INFO - Actual video duration: 50.00 seconds\n",
"2024-08-12 22:26:06,076 - INFO - Video duration check passed.\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"frame= 944 fps=144 q=-0.0 size= 136704KiB time=00:00:47.20 bitrate=23726.3kbits/s speed= 7.2x \n",
"[out#0/mov @ 0x13d70efa0] video:145148KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 0.004134%\n",
"frame= 1000 fps=146 q=-0.0 Lsize= 145154KiB time=00:00:50.00 bitrate=23782.1kbits/s speed=7.31x \n"
]
}
],
"source": [
"import os\n",
"import subprocess\n",
"import logging\n",
"from glob import glob\n",
"import re\n",
"\n",
"# Configure logging\n",
"logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')\n",
"logger = logging.getLogger(__name__)\n",
"\n",
"def create_high_quality_video(input_folder, output_file, fps=60, frames_per_image=3, codec='ffv1'):\n",
" if not os.path.exists(input_folder):\n",
" logger.error(f\"Input folder '{input_folder}' does not exist.\")\n",
" return\n",
"\n",
" png_files = sorted(glob(os.path.join(input_folder, '*.png')))\n",
" if not png_files:\n",
" logger.error(f\"No PNG files found in {input_folder}\")\n",
" return\n",
"\n",
" num_images = len(png_files)\n",
" logger.info(f\"Found {num_images} PNG files.\")\n",
"\n",
" # Calculate expected duration\n",
" expected_duration = (num_images * frames_per_image) / fps\n",
" logger.info(f\"Expected duration: {expected_duration:.2f} seconds\")\n",
"\n",
" # Base FFmpeg command\n",
" ffmpeg_command = [\n",
" 'ffmpeg',\n",
" '-framerate', f'{1/(frames_per_image/fps)}', # Input framerate\n",
" '-i', os.path.join(input_folder, '%*.png'), # Input pattern for all PNG files\n",
" '-fps_mode', 'vfr',\n",
" ]\n",
"\n",
" # Codec-specific settings\n",
" if codec == 'ffv1':\n",
" output_file = output_file.rsplit('.', 1)[0] + '.mkv' # FFV1 is typically used with MKV container\n",
" ffmpeg_command.extend([\n",
" '-c:v', 'ffv1',\n",
" '-level', '3',\n",
" '-coder', '1',\n",
" '-context', '1',\n",
" '-g', '1',\n",
" '-slices', '24',\n",
" '-slicecrc', '1'\n",
" ])\n",
" logger.info(\"Using FFV1 codec (lossless)\")\n",
" elif codec == 'prores':\n",
" output_file = output_file.rsplit('.', 1)[0] + '.mov' # ProRes is typically used with MOV container\n",
" ffmpeg_command.extend([\n",
" '-c:v', 'prores_ks',\n",
" '-profile:v', 'proxy', # Use ProRes 422 Proxy profile\n",
" '-qscale:v', '11' # Adjust quality scale; higher values mean lower quality. 11 is typical for proxy quality.\n",
"])\n",
"\n",
" logger.info(\"Using ProRes codec (near-lossless)\")\n",
" else:\n",
" logger.error(f\"Unsupported codec: {codec}\")\n",
" return\n",
"\n",
" ffmpeg_command.extend(['-y', output_file])\n",
"\n",
" try:\n",
" logger.info(f\"Starting high-quality video creation with {codec} codec...\")\n",
" process = subprocess.Popen(ffmpeg_command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)\n",
" \n",
" encoding_speed = None\n",
" \n",
" for line in process.stderr:\n",
" print(line, end='') # Print FFmpeg output in real-time\n",
" \n",
" speed_match = re.search(r'speed=\\s*([\\d.]+)x', line)\n",
" if speed_match:\n",
" encoding_speed = float(speed_match.group(1))\n",
" \n",
" process.wait()\n",
" \n",
" if encoding_speed:\n",
" logger.info(f\"Encoding speed: {encoding_speed:.4f}x\")\n",
" \n",
" if process.returncode == 0:\n",
" logger.info(f\"Video created successfully: {output_file}\")\n",
" \n",
" probe_command = ['ffprobe', '-v', 'error', '-show_entries', 'stream=codec_name,width,height,duration,bit_rate', '-of', 'default=noprint_wrappers=1', output_file]\n",
" probe_result = subprocess.run(probe_command, capture_output=True, text=True)\n",
" logger.info(f\"Video properties:\\n{probe_result.stdout}\")\n",
" \n",
" duration_command = ['ffprobe', '-v', 'error', '-show_entries', 'format=duration', '-of', 'default=noprint_wrappers=1:nokey=1', output_file]\n",
" duration_result = subprocess.run(duration_command, capture_output=True, text=True)\n",
" actual_duration = float(duration_result.stdout.strip())\n",
" logger.info(f\"Actual video duration: {actual_duration:.2f} seconds\")\n",
" if abs(actual_duration - expected_duration) > 1:\n",
" logger.warning(f\"Video duration mismatch. Expected: {expected_duration:.2f}, Actual: {actual_duration:.2f}\")\n",
" else:\n",
" logger.info(\"Video duration check passed.\")\n",
" else:\n",
" logger.error(f\"Error during video creation. FFmpeg returned code {process.returncode}\")\n",
"\n",
" except subprocess.CalledProcessError as e:\n",
" logger.error(f\"Error during video creation: {e}\")\n",
" logger.error(f\"FFmpeg error output:\\n{e.stderr}\")\n",
"\n",
"if __name__ == \"__main__\":\n",
" input_folder = 'train'\n",
" output_file = 'high_quality_output.mp4'\n",
" fps = 60\n",
" frames_per_image = 3\n",
" codec = 'prores' # Options: 'ffv1' (lossless) or 'prores' (near-lossless)\n",
"\n",
" create_high_quality_video(input_folder, output_file, fps, frames_per_image, codec)"
]
}
],
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|